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CN115998218A - Photoacoustic endoscope and endoscope system - Google Patents

Photoacoustic endoscope and endoscope system
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Publication number
CN115998218A
CN115998218ACN202211736385.9ACN202211736385ACN115998218ACN 115998218 ACN115998218 ACN 115998218ACN 202211736385 ACN202211736385 ACN 202211736385ACN 115998218 ACN115998218 ACN 115998218A
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joint
branch
section
photoacoustic
trunk
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龚鹏程
荆峰
邱建军
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Sonoscape Medical Corp
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Sonoscape Medical Corp
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Abstract

The invention provides a photoacoustic endoscope and an endoscope system. The photoacoustic endoscope comprises a light guide part, an operation part and an insertion part, wherein an optical fiber bundle extends from the light guide part to a head end part of a distal end of the insertion part through the operation part, the optical fiber bundle comprises a main section, a first branch section and a second branch section, the photoacoustic endoscope further comprises a joint assembly, the joint assembly comprises a main joint, the first branch joint and the second branch joint which are mutually independent and detachably connected to the main joint, a proximal end of the main section is optically coupled to a light guide interface on the light guide part, a distal end of the main section is connected with the main joint, a proximal end of the first branch section is connected with the first branch joint, a proximal end of the second branch section is connected with the second branch joint, distal ends of the first branch section and the second branch section are both fixed to the head end part, and distal ends of the main section are optically coupled with proximal ends of the first branch section and the second branch section. The photoacoustic endoscope can be conveniently detached for maintenance or replacement when being reworked and detached, so that the maintainability is better, and the user experience is better.

Description

Translated fromChinese
光声内窥镜和内窥镜系统Photoacoustic Endoscopy and Endoscopy Systems

技术领域technical field

本发明涉及医疗器械的技术领域,具体地,涉及一种光声内窥镜和内窥镜系统。The present invention relates to the technical field of medical instruments, in particular to a photoacoustic endoscope and an endoscope system.

背景技术Background technique

内窥成像作为一种无创成像方法,可有效延长人类视线,被广泛应用于消化道、心脑血管系统、泌尿系统以及呼吸道系统等多个领域的影像诊断和图像引导治疗,极大地促进了疾病的检查精度。Endoscopic imaging, as a non-invasive imaging method, can effectively extend the human line of sight, and is widely used in image diagnosis and image-guided therapy in many fields such as the digestive tract, cardiovascular and cerebrovascular systems, urinary system, and respiratory system, which greatly promotes the development of diseases. inspection accuracy.

近年来,内窥成像技术中的光声成像技术得到快速发展,光声内窥镜越来越多地应用于临床。光声内窥镜是通过将光声激励光通过内窥镜探头导入生物管腔内激发超声波(光声信号),然后再通过置于内窥镜导管内的微型超声换能器接收所产生的超声信号对组织成像。In recent years, photoacoustic imaging technology in endoscopic imaging technology has developed rapidly, and photoacoustic endoscopy is increasingly used in clinical practice. Photoacoustic endoscopy is generated by introducing photoacoustic excitation light into the biological lumen through the endoscope probe to excite ultrasonic waves (photoacoustic signals), and then receiving them through the micro-ultrasonic transducer placed in the endoscopic catheter. The ultrasound signal images the tissue.

现有的光声内窥镜包括操作部和插入部,插入部的远端设置有头端部。通常,光声内窥镜使用光纤传导光声激励光到头端部,光纤的远端往往与头端部固定连接。而且,光纤通常可以分叉成两股,两股分别从两侧进入头端部。头端部内在两束分叉的光纤之间还是设置有其他部件,例如抬钳器、水气接头等等。如果需要拆卸两束分叉的光纤之间的其他部件,分叉处可能产生阻挡,可能会导致其他部件卡在分叉处无法抽出。The existing photoacoustic endoscope includes an operation part and an insertion part, and a tip part is provided at the distal end of the insertion part. Usually, a photoacoustic endoscope uses an optical fiber to transmit photoacoustic excitation light to the head end, and the distal end of the optical fiber is often fixedly connected to the head end. Moreover, the optical fiber can usually be bifurcated into two strands, and the two strands enter the head end from both sides respectively. There are still other components, such as clamp lifters, water and air joints, etc., arranged between the two bundles of bifurcated optical fibers in the head end. If other components between the two forked optical fibers need to be disassembled, the fork may be blocked, which may cause other components to be stuck at the fork and cannot be pulled out.

发明内容Contents of the invention

为了至少部分地解决现有技术中存在的问题,根据本发明的一个方面,提供一种光声内窥镜,光声内窥镜包括导光部、操作部和插入部,操作部连接在导光部和插入部之间,插入部的远端设有头端部,光纤束从导光部经由操作部延伸至头端部,用于传导光声激励光,光纤束包括主干段、第一分支段和第二分支段,光声内窥镜还包括接头组件,接头组件包括主干接头、彼此独立且可拆卸地连接至主干接头的第一分支接头和第二分支接头,主干段的近端光耦合至导光部上的导光接口,主干段的远端连接主干接头,第一分支段的近端连接第一分支接头,第二分支段的近端连接第二分支接头,第一分支段和第二分支段的远端均固定至头端部,其中,主干段的远端在接头组件的各个接头连接在一起时与第一分支段和第二分支段的近端光耦合。In order to at least partly solve the problems in the prior art, according to one aspect of the present invention, a photoacoustic endoscope is provided. The photoacoustic endoscope includes a light guide part, an operation part and an insertion part. The operation part is connected to the guide Between the optical part and the insertion part, a head end is provided at the far end of the insertion part, and the fiber bundle extends from the light guide part to the head end via the operation part for conducting photoacoustic excitation light. The fiber bundle includes a trunk section, a first The branch section and the second branch section, the photoacoustic endoscope also includes a joint assembly, the joint assembly includes a trunk joint, a first branch joint and a second branch joint that are independent of each other and detachably connected to the trunk joint, and the proximal end of the trunk section Optically coupled to the light guide interface on the light guide part, the far end of the trunk section is connected to the trunk joint, the proximal end of the first branch section is connected to the first branch joint, the proximal end of the second branch section is connected to the second branch joint, and the first branch Both the distal ends of the segment and the second branch segment are secured to the head end, wherein the distal end of the trunk segment is optically coupled to the proximal ends of the first branch segment and the second branch segment when the respective connectors of the connector assembly are connected together.

示例性地,接头组件设置在操作部内或者导光部内。Exemplarily, the joint assembly is arranged in the operation part or in the light guide part.

示例性地,主干接头包括接头管,主干段的远端连接至接头管内,接头组件还包括连接件,接头管和连接件可拆卸地连接,以将第一分支接头和第二分支接头夹持在接头管和连接件之间。Exemplarily, the trunk joint includes a joint pipe into which the distal end of the trunk section is connected, and the joint assembly further includes a connecting piece, and the joint pipe and the connecting piece are detachably connected to clamp the first branch joint and the second branch joint Between the adapter tube and the fitting.

示例性地,第一分支接头包括第一接头部,第一分支段的近端连接至第一接头部,第二分支接头包括第二接头部,第二分支段的近端连接至第二接头部,连接件具有光纤通道,第一接头部和第二接头部的至少远端并排插至光纤通道内且与光纤通道相适配,光纤通道的远端设置有限位块,限位块在接头管与连接件连接时沿着朝向远端的方向对第一接头部和第二接头部进行限位。Exemplarily, the first branch joint includes a first joint portion, the proximal end of the first branch section is connected to the first joint portion, the second branch joint includes a second joint portion, and the proximal end of the second branch section is connected to the second joint part, the connector has a fiber optic channel, at least the distal ends of the first joint part and the second joint part are inserted into the fiber channel side by side and adapted to the fiber channel, the far end of the fiber channel is provided with a limit block, and the limit block is on the joint When the tube is connected with the connecting piece, the first joint part and the second joint part are limited along the direction toward the distal end.

示例性地,限位块包括在光纤通道的内侧壁上沿预定方向相对设置的第一固定限位块和第二固定限位块,预定方向垂直于光纤束的延伸方向,第一固定限位块位于第一接头部所在的一侧,第二固定限位块位于第二接头部所在的一侧,第一固定限位块和第二固定限位块之间具有预定间距,预定间距大于第一接头部沿预定方向的尺寸且且大于第二接头部沿预定方向的尺寸。Exemplarily, the limit block includes a first fixed limit block and a second fixed limit block oppositely arranged on the inner wall of the fiber channel along a predetermined direction, the predetermined direction is perpendicular to the extending direction of the optical fiber bundle, and the first fixed limit block The block is located on the side where the first joint part is located, and the second fixed limit block is located on the side where the second joint part is located. There is a predetermined distance between the first fixed limit block and the second fixed limit block, and the predetermined distance is larger than the first fixed limit block. The size of the first joint part along the predetermined direction is greater than the size of the second joint part along the predetermined direction.

示例性地,预定间距大于或等于第一接头部沿预定方向的尺寸和第二分支段的外径之和。Exemplarily, the predetermined distance is greater than or equal to the sum of the dimension of the first joint portion along the predetermined direction and the outer diameter of the second branch section.

示例性地,预定间距大于或等于第二接头部沿预定方向的尺寸和第一分支段的外径之和。Exemplarily, the predetermined distance is greater than or equal to the sum of the dimension of the second joint portion along the predetermined direction and the outer diameter of the first branch section.

示例性地,光纤通道的横截面呈矩形或者圆角矩形。Exemplarily, the cross section of the fiber channel is a rectangle or a rectangle with rounded corners.

示例性地,第一分支接头还包括从第一接头部的远端朝向光纤束的远端延伸的第一束线部,第一束线部伸出到连接件之外。Exemplarily, the first branch connector further includes a first wire harness part extending from the distal end of the first connector part toward the distal end of the optical fiber bundle, and the first wire harness part protrudes out of the connector.

示例性地,第二分支接头还包括从第二接头部的远端朝向光纤束的远端延伸的第二束线部,第二束线部伸出到连接件之外。Exemplarily, the second branch connector further includes a second wire harness part extending from the distal end of the second connector part toward the distal end of the optical fiber bundle, and the second wire harness part protrudes out of the connector.

示例性地,限位块在限位第一接头部和第二接头部的限位位置和释放第一接头部和第二接头部的释放位置之间可移动。Exemplarily, the limiting block is movable between a limiting position for limiting the first joint part and the second joint part and a release position for releasing the first joint part and the second joint part.

示例性地,第一分支接头和第二分支接头具有相同的结构。Exemplarily, the first branch joint and the second branch joint have the same structure.

示例性地,第一分支接头和第二分支接头中的每个上设置有横截面为半圆形的凹腔,第一分支段的近端和第二分支段的近端分别固定至第一分支接头的凹腔和第二分支接头的凹腔内。Exemplarily, each of the first branch joint and the second branch joint is provided with a concave cavity with a semicircular cross section, and the proximal end of the first branch section and the proximal end of the second branch section are respectively fixed to the first branch joint. The cavity of the branch joint and the cavity of the second branch joint.

示例性地,第一分支段的近端形成有与第一分支接头的凹腔相适配的第一硬质段,第一硬质段延伸到第一分支接头的远端之外。Exemplarily, the proximal end of the first branch section is formed with a first hard section adapted to the cavity of the first branch joint, and the first hard section extends beyond the distal end of the first branch joint.

示例性地,第二分支段的近端形成有与第二分支接头的凹腔相适配的第二硬质段,第二硬质段延伸到第二分支接头的远端之外。Exemplarily, the proximal end of the second branch section is formed with a second hard section adapted to the cavity of the second branch joint, and the second hard section extends beyond the distal end of the second branch joint.

示例性地,接头管和连接件螺纹连接。Exemplarily, the joint pipe and the connector are screwed together.

示例性地,连接件连接至接头管内。Exemplarily, the connector is connected into the joint tube.

示例性地,主干段上套设有主干保护皮,接头管的近端同轴设置有内套管,内套管的外径小于接头管的外径,主干段穿设于内套管,主干保护皮的远端套设在内套管上。Exemplarily, the trunk section is covered with a trunk protection skin, the proximal end of the joint pipe is coaxially provided with an inner sleeve, the outer diameter of the inner sleeve is smaller than the outer diameter of the joint pipe, the trunk section is passed through the inner sleeve, and the trunk The distal end of the protective skin is sheathed on the inner casing.

示例性地,内套管的外侧壁上设置有环形槽,主干保护皮通过在环形槽处缠绕的固定线固定在内套管上。Exemplarily, an annular groove is provided on the outer side wall of the inner casing, and the trunk protection skin is fixed on the inner casing by a fixing wire wound around the annular groove.

示例性地,第一分支段和第二分支段的数值孔径之和大于或等于主干段的数值孔径。Exemplarily, the sum of the numerical apertures of the first branch segment and the second branch segment is greater than or equal to the numerical aperture of the trunk segment.

示例性地,第一分支段和第二分支段的横截面积之和大于或等于主干段的横截面积。Exemplarily, the sum of the cross-sectional areas of the first branch segment and the second branch segment is greater than or equal to the cross-sectional area of the trunk segment.

示例性地,第一分支段的近端热熔固化或胶粘至第一分支接头。Illustratively, the proximal end of the first branch segment is heat-melted or glued to the first branch joint.

示例性地,第二分支段的近端热熔固化或胶粘至第二分支接头。Illustratively, the proximal end of the second branch segment is heat-melted or glued to the second branch joint.

示例性地,主干段的远端热熔固化或胶粘至主干接头。Illustratively, the distal ends of the trunk segments are heat melted or glued to the trunk joint.

示例性地,头端部包括凸阵超声探头,头端部上设置有两个光声激励光窗,两个光声激励光窗分别位于凸阵超声探头的两侧,第一分支段和第二分支段的远端分别对准两个光声激励光窗。Exemplarily, the head end includes a convex array ultrasonic probe, and two photoacoustic excitation light windows are arranged on the head end. The distal ends of the two branch sections are respectively aligned with the two photoacoustic excitation light windows.

示例性地,第一分支段所包括的多个第一光纤的远端和第二分支段所包括的多个第二光纤的远端彼此分离并呈扇形散开且固定至光纤固定件,光纤固定件固定至两个光声激励光窗的内表面。Exemplarily, the distal ends of the plurality of first optical fibers included in the first branch section and the distal ends of the plurality of second optical fibers included in the second branch section are separated from each other and fanned out and fixed to the fiber holder, the optical fibers The fixing part is fixed to the inner surfaces of the two photoacoustic excitation light windows.

根据本发明的另一个方面,还提供一种内窥镜系统,包括如上所述的5任一种光声内窥镜。According to another aspect of the present invention, an endoscope system is also provided, including any one of the above-mentioned photoacoustic endoscopes.

本申请提供的光声内窥镜将光纤束分成三段,分别为主干段、第一分支段和第二分支段,且在三段光纤的连接处设置主干接头、第一分支接头和第二分支接头,当主干接头、第一分支接头和第二分支接头连接时,主The photoacoustic endoscope provided by this application divides the fiber bundle into three sections, which are respectively the trunk section, the first branch section and the second branch section, and the trunk joint, the first branch joint and the second branch joint are arranged at the joints of the three sections of optical fibers. Branch joint, when the trunk joint, the first branch joint and the second branch joint are connected, the main

干段与第一分支段和第二分支段可以实现光耦合,这样光声激励光可以在0光声内窥镜中正常传递,光声内窥镜可以正常工作。当需要拆卸第一分支The stem section can be optically coupled with the first branch section and the second branch section, so that the photoacoustic excitation light can be transmitted normally in the photoacoustic endoscope, and the photoacoustic endoscope can work normally. When the first branch needs to be removed

段和第二分支段之间的光声内窥镜的部件时,可以解除接头组件的各个接头的连接,此时主干段与第一分支段和第二分支段可以分离,第一分支段和第二分支段彼此也可以分离,由此第一分支段和第二分支段分开后就不When the parts of the photoacoustic endoscope between the section and the second branch section, the connection of each joint of the joint assembly can be released, at this time the trunk section can be separated from the first branch section and the second branch section, and the first branch section and the second branch section can be separated. The second branch section can also be separated from each other, so that the first branch section and the second branch section will not

会对头端部上的零部件的拆卸产生阻挡。此外,当主干段、第一分支段或5第二分支段需要拆卸时,也可以解除接头组件的各个接头的连接,进而可It will block the removal of parts on the head end. In addition, when the trunk section, the first branch section or the second branch section need to be disassembled, the connection of each joint of the joint assembly can also be released, and then the

以达到维修或更换光纤的目的。这样的光声内窥镜在返修拆卸时可以方便地拆卸维修或更换部件,可维修性更好,用户体验更好。In order to achieve the purpose of repairing or replacing the optical fiber. Such a photoacoustic endoscope can be easily disassembled for maintenance or replace parts when it is repaired and disassembled, which has better maintainability and better user experience.

在发明内容中引入了一系列简化形式的概念,这将在具体实施方式部In the summary of the invention, a series of concepts in simplified form are introduced, which will be described in the specific implementation section

分中进一步详细说明。本发明内容部分并不意味着要试图限定出所要求保0护的技术方案的关键特征和必要技术特征,更不意味着试图确定所要求保further detailed in the section. The summary of the present invention does not mean to try to limit the key features and essential technical features of the claimed technical solution, nor does it mean to try to determine the

护的技术方案的保护范围。The scope of protection of the protected technical solution.

以下结合附图,详细说明本发明的优点和特征。The advantages and features of the present invention will be described in detail below in conjunction with the accompanying drawings.

附图说明Description of drawings

5本发明的下列附图在此作为本发明的一部分用于理解本发明。附图中5 The following drawings of the present invention are hereby included as part of the present invention for understanding the present invention. In the attached picture

示出了本发明的实施方式及其描述,用来解释本发明的原理。在附图中,The embodiments of the invention and their description are shown to explain the principles of the invention. In the attached picture,

图1为根据本发明的一个示例性实施例的内窥镜系统的示意图;1 is a schematic diagram of an endoscope system according to an exemplary embodiment of the present invention;

图2为根据本发明的一个示例性实施例的光声内窥镜的示意图;2 is a schematic diagram of a photoacoustic endoscope according to an exemplary embodiment of the present invention;

图3为根据本发明的一个示例性实施例的光声内窥镜的头端部的立体图;3 is a perspective view of a head end of a photoacoustic endoscope according to an exemplary embodiment of the present invention;

图4为图3所示的头端部的侧视图;Fig. 4 is a side view of the head end shown in Fig. 3;

图5为图3所示的头端部的侧向剖视图;Fig. 5 is a side sectional view of the head end shown in Fig. 3;

图6为图3所示的头端部的垂直于插入部的轴向方向的剖视图;Fig. 6 is a cross-sectional view perpendicular to the axial direction of the insertion part of the head end portion shown in Fig. 3;

图7为根据本发明的一个示例性实施例的光纤束的示意图;7 is a schematic diagram of an optical fiber bundle according to an exemplary embodiment of the present invention;

图8为根据本发明的一个示例性实施例的接头组件的立体图;8 is a perspective view of a joint assembly according to an exemplary embodiment of the present invention;

图9为图8所示的接头组件的爆炸图;Fig. 9 is an exploded view of the joint assembly shown in Fig. 8;

图10为根据本发明的一个示例性实施例的第一分支段和第一分支接头的配合示意图;Fig. 10 is a schematic diagram of cooperation between a first branch section and a first branch joint according to an exemplary embodiment of the present invention;

图11为根据本发明的一个示例性实施例的光声内窥镜在接头组件处的剖视图;11 is a cross-sectional view of a photoacoustic endoscope at a joint assembly according to an exemplary embodiment of the present invention;

图12为图11所示的接头组件处于第一拆卸状态时的剖视图;以及Figure 12 is a cross-sectional view of the joint assembly shown in Figure 11 in a first disassembled state; and

图13为图11所示的接头组件处于第二拆卸状态时的剖视图。Fig. 13 is a cross-sectional view of the joint assembly shown in Fig. 11 in a second disassembled state.

其中,上述附图包括以下附图标记:Wherein, the above-mentioned accompanying drawings include the following reference signs:

10、光声内窥镜;12、插入部;121、插入管;122、弯曲部;13、头端部;15、导光部;16、操作部;20、光源装置;21、处理装置;22、显示器;23、超声连接器;30、内窥镜系统;200、凸阵超声探头;210、声窗;300、光声激励光窗;310、第一光声激励光窗;320、第二光声激励光窗;400、光纤束;410、第一分支段;411、第一硬质段;412、第一过渡段;420、第二分支段;421、第二硬质段;422、第二过渡段;430、主干段;431、主干保护皮;440、光纤固定件;500、照明光窗;501、摄像头;600、接头组件;610、第一分支接头;611、第一接头部;612、第一束线部;613、凹腔;620、第二分支接头;621、第二接头部;622、第二束线部;623、凹腔;630、主干接头;631、接头管;632、内套管;633、环形槽;640、连接件;642、光纤通道;643、限位块;6431、第一固定限位块;6432、第二固定限位块;700、第一光纤固定件;710、第一通孔;800、第二光纤固定件;810、第二通孔。10. Photoacoustic endoscope; 12. Insertion part; 121. Insertion tube; 122. Bending part; 13. Head end; 15. Light guide part; 16. Operation part; 20. Light source device; 21. Processing device; 22. Display; 23. Ultrasonic connector; 30. Endoscope system; 200. Convex array ultrasonic probe; 210. Acoustic window; 300. Photoacoustic excitation light window; 310. The first photoacoustic excitation light window; 320. The first 2. Photoacoustic excitation light window; 400, optical fiber bundle; 410, first branch section; 411, first hard section; 412, first transition section; 420, second branch section; 421, second hard section; 422 , the second transition section; 430, the trunk section; 431, the trunk protection skin; 440, the optical fiber fixing piece; 500, the lighting window; 501, the camera; 600, the connector assembly; 610, the first branch connector; 611, thefirst connector 612, the first beam part; 613, the concave cavity; 620, the second branch joint; 621, the second joint part; 622, the second beam part; 623, the concave cavity; 630, the trunk joint; 631, the joint Tube; 632, inner casing; 633, annular groove; 640, connector; 642, optical fiber channel; 643, limit block; 6431, first fixed limit block; 6432, second fixed limit block; 700, the first An optical fiber fixing member; 710, the first through hole; 800, the second optical fiber fixing member; 810, the second through hole.

具体实施方式Detailed ways

在下文的描述中,提供了大量的细节以便能够彻底地理解本发明。然而,本领域技术人员可以了解,如下描述仅示例性地示出了本发明的优选实施例,本发明可以无需一个或多个这样的细节而得以实施。此外,为了避免与本发明发生混淆,对于本领域公知的一些技术特征未进行详细描述。In the following description, numerous details are provided in order to provide a thorough understanding of the invention. It will be appreciated, however, to those skilled in the art that the following description is merely illustrative of preferred embodiments of the invention, and that the invention may be practiced without one or more of these details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

根据本发明的一个方面,如图2所示,提供一种光声内窥镜10。该光声内窥镜10在正常使用时可以保障光声激励光在光声内窥镜10上的正常传输,在需要拆卸返修时可以方便地拆卸、更换光纤束。According to one aspect of the present invention, as shown in FIG. 2 , a photoacoustic endoscope 10 is provided. The photoacoustic endoscope 10 can ensure the normal transmission of the photoacoustic excitation light on the photoacoustic endoscope 10 during normal use, and can conveniently disassemble and replace the optical fiber bundle when it needs to be disassembled for repair.

根据本发明的另一个方面,如图1所示,提供一种内窥镜系统30,内窥镜系统30可以包括如后文所述中的任一种光声内窥镜10。内窥镜系统30可以包括光源装置20,光源装置20可以用于与如后文所述中的任一种光声内窥镜10相适配,光源装置20可以与光声内窥镜10中的导光部15连接。示例性地,内窥镜系统30还可以包括处理装置21、显示器22、超声连接器23和超声主机(图中未示出)。光源装置20产生的光声激励光可以传导到光声内窥镜10的远端用于成像。光声内窥镜10可以通过超声连接器23传递超声信号至超声主机,超声主机可以对超声信号进行处理,处理结果可以显示在显示器22上。According to another aspect of the present invention, as shown in FIG. 1 , an endoscope system 30 is provided, and the endoscope system 30 may include any photoacoustic endoscope 10 described below. The endoscope system 30 may include a light source device 20, and the light source device 20 may be adapted to any photoacoustic endoscope 10 as described later, and the light source device 20 may be combined with the photoacoustic endoscope 10 Thelight guide part 15 is connected. Exemplarily, the endoscope system 30 may further include a processing device 21, adisplay 22, anultrasound connector 23 and an ultrasound host (not shown in the figure). The photoacoustic excitation light generated by the light source device 20 can be transmitted to the distal end of the photoacoustic endoscope 10 for imaging. The photoacoustic endoscope 10 can transmit ultrasonic signals to the ultrasonic host through theultrasonic connector 23 , the ultrasonic host can process the ultrasonic signals, and the processing results can be displayed on thedisplay 22 .

为方便描述,下文提到的远端,指的是操作者使用光声内窥镜10时,光声内窥镜10上更靠近被观察对象的一端;下文提到的近端,指的是操作者使用光声内窥镜10时,光声内窥镜10上更靠近操作者的一端。For the convenience of description, the distal end mentioned below refers to the end of the photoacoustic endoscope 10 that is closer to the object to be observed when the operator uses the photoacoustic endoscope 10; the proximal end mentioned below refers to When the operator uses the photoacoustic endoscope 10, the end of the photoacoustic endoscope 10 is closer to the operator.

如图2所示,光声内窥镜10可以包括导光部15、操作部16和插入部12,操作部16可以连接在导光部15和插入部12之间。插入部12可以插入到被观察对象的体内,插入部12的远端可以设置有头端部13,通常,头端部13是硬质的。除了头端部13之外,插入部12还可以包括带有刻度的插入管121和可实现不同方向摆动的弯曲部122。As shown in FIG. 2 , the photoacoustic endoscope 10 may include alight guide part 15 , anoperation part 16 and aninsertion part 12 , and theoperation part 16 may be connected between thelight guide part 15 and theinsertion part 12 . Theinsertion part 12 can be inserted into the body of the object to be observed, and the distal end of theinsertion part 12 can be provided with ahead end 13, usually, thehead end 13 is hard. In addition to thehead end portion 13, theinsertion portion 12 may also include aninsertion tube 121 with scales and a bendingportion 122 capable of swinging in different directions.

通常情况下,结合参见图2、图3、图5和图7,光纤束400可以从导光部15经由操作部16延伸至头端部13。光纤束400可以穿设于导光部15、操作部16和插入部12,并延伸至头端部13内。光纤束400可以为单模光纤,也可以为多模光纤。光纤束400可以传导光声激励光。光纤束400可以与导光部15连接。光源装置20产生的光声激励光传递向导光部15以后,可以继续由导光部15传递向光纤束400,光纤束400可以将光声激励光传递向头端部13。头端部13可以包括光声激励光窗300。Generally, referring to FIG. 2 , FIG. 3 , FIG. 5 and FIG. 7 , theoptical fiber bundle 400 can extend from thelight guide part 15 to thehead end part 13 via the operatingpart 16 . Theoptical fiber bundle 400 can pass through thelight guide part 15 , theoperation part 16 and theinsertion part 12 , and extend into thehead end part 13 . Thefiber bundle 400 may be a single-mode fiber or a multi-mode fiber.Fiber optic bundle 400 can conduct photoacoustic excitation light. Theoptical fiber bundle 400 may be connected to thelight guide 15 . After the photoacoustic excitation light generated by the light source device 20 is transmitted to thelight guide part 15 , it can continue to be transmitted from thelight guide part 15 to theoptical fiber bundle 400 , and theoptical fiber bundle 400 can transmit the photoacoustic excitation light to thehead end 13 . Thehead end 13 may include aphotoacoustic excitation window 300 .

光声激励光窗300可以根据需要具有各种形状,光声激励光窗300可以通过焊接、螺纹连接或卡接等各种形式设置在头端部13上,光声激励光窗300可以形成头端部13的外壳的一部分。优选地,光声激励光窗300可以是全透明的,而且光声激励光窗300可以由非金属材料制成,亦即光声激励光窗300可以包括全透明非金属材料光窗的形式。优选地,光声激励光窗300的外表面还可以是疏水设计,这样可以减少被观察对象的体腔黏膜表面食物残渣、粘液等附着在光声激励光窗300的表面。光声激励光窗300可以改变光声激励光光束的发射路径以形成较好的光声激励光光场,光声激励光窗300可以为头端部13发射光声激励光的出口。优选地,光声激励光窗300可以包括光折射装置,这样可以以预设的出射角度使光声激励光从光声激励光窗300出射。所述光折射装置可以为棱镜(如梯形棱镜)。光声激励光窗300还可以包括光反射装置,所述光反射装置可以为棱镜、平面镜、凹面镜、凸面镜等。The photoacoustic excitationlight window 300 can have various shapes according to needs, and the photoacoustic excitationlight window 300 can be arranged on thehead end 13 in various forms such as welding, threaded connection or clamping, and the photoacoustic excitationlight window 300 can form a head Part of the housing atend 13. Preferably, the photoacoustic excitationlight window 300 may be fully transparent, and the photoacoustic excitationlight window 300 may be made of non-metallic material, that is, the photoacoustic excitationlight window 300 may include a form of a fully transparent non-metallic material light window. Preferably, the outer surface of the photoacoustic excitationlight window 300 can also be of a hydrophobic design, which can reduce the adherence of food residues and mucus on the surface of the photoacoustic excitationlight window 300 on the mucosal surface of the body cavity of the observed object. The photoacoustic excitationlight window 300 can change the emission path of the photoacoustic excitation light beam to form a better photoacoustic excitation light field, and the photoacoustic excitationlight window 300 can be the outlet for thehead end 13 to emit photoacoustic excitation light. Preferably, the photoacoustic excitationlight window 300 may include a light refraction device, so that the photoacoustic excitation light can be emitted from the photoacoustic excitationlight window 300 at a preset emission angle. The light refraction device may be a prism (such as a trapezoidal prism). The photoacoustic excitationlight window 300 may further include a light reflection device, and the light reflection device may be a prism, a plane mirror, a concave mirror, a convex mirror, and the like.

如图3所示,头端部13上也可以设置有凸阵超声探头200,凸阵超声探头200可以包括超声换能器,超声换能器可以发射和接收超声波,形成超声图像。这里所说的凸阵超声探头200可以接收超声波,指的是凸阵超声探头200不仅可以接收自身发射的超声波形成的超声回波,还可以接收光声激励光照射在被观察对象上所产生的超声回波,这里的光声激励光可以是头端部13透过光声激励光窗300发射的。凸阵超声探头200可以与外部超声-光声主机连接,凸阵超声探头200可以将接收到的超声波传输至外部超声-光声主机,并且经过超声-光声主机处理,可以实现超声成像、光声成像或超声-光声融合成像等成像模式。As shown in FIG. 3 , a convex-arrayultrasonic probe 200 may also be provided on thehead end 13 . The convex-arrayultrasonic probe 200 may include an ultrasonic transducer that can transmit and receive ultrasonic waves to form an ultrasonic image. The convex-arrayultrasonic probe 200 mentioned here can receive ultrasonic waves, which means that the convex-arrayultrasonic probe 200 can not only receive the ultrasonic echoes formed by the ultrasonic waves emitted by itself, but also receive the ultrasonic echoes generated by the irradiation of photoacoustic excitation light on the observed object. The ultrasonic echo, here the photoacoustic excitation light can be emitted by thehead end 13 through the photoacoustic excitationlight window 300 . The convex arrayultrasonic probe 200 can be connected with an external ultrasonic-photoacoustic host, and the convex arrayultrasonic probe 200 can transmit the received ultrasonic waves to an external ultrasonic-photoacoustic host, and after being processed by the ultrasonic-photoacoustic host, it can realize ultrasonic imaging, optical Imaging modes such as acoustic imaging or ultrasound-photoacoustic fusion imaging.

在一些实施例中,头端部13上可以设置有照明光窗500和摄像头501,照明光窗500可以为头端部13发射照明光的出口,照明光窗500与摄像头501配合可以实现光学成像。在此情况下,光源装置20也可以产生照明光,照明光可以传导到光声内窥镜10的照明光窗500,处理装置21对摄像头501采集到的图像信号进行处理并将其显示在显示器22上。此外,头端部13还可以包括水气输送管路和器械通道。这样,头端部13可以集光学成像、水气输送、超声成像、光声成像、钳道器械操纵等功能于一体。In some embodiments, an illuminationlight window 500 and acamera 501 may be provided on thehead end 13, the illuminationlight window 500 may be an outlet for emitting illumination light from thehead end 13, and the cooperation between the illuminationlight window 500 and thecamera 501 may realize optical imaging . In this case, the light source device 20 can also generate illumination light, and the illumination light can be transmitted to the illuminationlight window 500 of the photoacoustic endoscope 10, and the processing device 21 processes the image signal collected by thecamera 501 and displays it on thedisplay 22 on. In addition, thehead end 13 may also include water and air delivery pipelines and instrument channels. In this way, thehead end 13 can integrate functions such as optical imaging, water and air transport, ultrasonic imaging, photoacoustic imaging, and manipulation of forceps instruments.

如图7所示,光纤束400可以包括主干段430、第一分支段410和第二分支段420,主干段430的近端可以光耦合至导光部15上的导光接口,第一分支段410和第二分支段420的远端均可以固定至头端部13。光纤束400可以分叉以使光纤束400可以包括近端连接至导光部15的主干段430、以及远端延伸至头端部13的第一分支段410和第二分支段420。光纤束400可以在导光部15、操作部16或插入部12中的任意位置处分叉成两股,光纤束400的近端到分叉处为主干段430。光纤束400的近端,亦即主干段430的近端,可以与导光部15连接。光源装置20产生的光声激励光传递向导光部15以后,可以继续由导光部15传递向主干段430,主干段430可以将光声激励光传递向第一分支段410和第二分支段420。As shown in FIG. 7 , theoptical fiber bundle 400 may include atrunk section 430, afirst branch section 410, and asecond branch section 420. The proximal end of thetrunk section 430 may be optically coupled to the light guide interface on thelight guide part 15. The first branch The distal ends of both thesegment 410 and thesecond branch segment 420 may be fixed to thehead end 13 . Thefiber bundle 400 can be bifurcated so that thefiber bundle 400 can include atrunk section 430 proximally connected to thelight guide 15 , and afirst branch section 410 and asecond branch section 420 distally extending to thehead end 13 . Thefiber bundle 400 can be bifurcated into two strands at any position in thelight guide part 15 , theoperation part 16 or theinsertion part 12 , and thetrunk section 430 is formed from the proximal end of thefiber bundle 400 to the bifurcation. The proximal end of theoptical fiber bundle 400 , that is, the proximal end of thetrunk section 430 , can be connected to thelight guide part 15 . After the photoacoustic excitation light generated by the light source device 20 is transmitted to thelight guide part 15, it can continue to be transmitted from thelight guide part 15 to thetrunk section 430, and thetrunk section 430 can transmit the photoacoustic excitation light to thefirst branch section 410 and the second branch section. 420.

第一分支段410和第二分支段420的远端可以延伸至头端部13,并且可以通过胶粘或热熔等各种形式固定连接在头端部13。光声激励光经第一分支段410和第二分支段420的远端出射,通过光声激励光窗300可以照射在被观察对象上。The distal ends of thefirst branch section 410 and thesecond branch section 420 may extend to thehead end 13 , and may be fixedly connected to thehead end 13 by various means such as glue or heat fusion. The photoacoustic excitation light exits through the distal ends of thefirst branch section 410 and thesecond branch section 420 , and can be irradiated on the observed object through the photoacoustic excitationlight window 300 .

特别地,头端部13上存在第一光声激励光窗310和第二光声激励光窗320的实施例中,第一分支段410的远端可以对准第一光声激励光窗310,第二分支段420的远端可以对准第二光声激励光窗320。后文还将对此进行详细描述。Especially, in the embodiment where there are first photoacoustic excitationlight window 310 and second photoacoustic excitationlight window 320 on thehead end 13, the distal end of thefirst branch section 410 can be aligned with the first photoacoustic excitationlight window 310 , the distal end of thesecond branch section 420 can be aligned with the secondphotoacoustic excitation window 320 . This will be described in detail later.

光声内窥镜10还可以包括接头组件600,接头组件600可以包括主干接头630、可拆卸地连接至主干接头630的第一分支接头610和第二分支接头620。第一分支接头610和第二分支接头620彼此是独立的。第一分支接头610和第二分支接头620从主干接头630上拆卸下来后,可以彼此分离。示例性地,第一分支接头610和第二分支接头620可以分别独立地连接至干接头630,也可以两者拼合后再连接至干接头630。主干接头630、第一分支接头610和第二分支接头620可以为圆柱形结构,也可以具有棱柱形状结构等。主干接头630、第一分支接头610和第二分支接头620可以根据需要设计成各种形状,例如,主干接头630、第一分支接头610和第二分支接头620可以是棱柱形或圆柱形。第一分支接头610和第二分支接头620可以具有相同的形状,也可以具有不同的形状。主干接头630、第一分支接头610和第二分支接头620之间的连接可以是螺纹连接或卡接等各种形式的可拆卸连接。主干接头630、第一分支接头610和第二分支接头620可以采用金属材料或者例如塑料的绝缘材料制成。The photoacoustic endoscope 10 may further include ajoint assembly 600 which may include a main joint 630 , afirst branch joint 610 and a second branch joint 620 detachably connected to the main joint 630 . Thefirst branch joint 610 and thesecond branch joint 620 are independent of each other. After thefirst branch joint 610 and thesecond branch joint 620 are detached from the trunk joint 630, they can be separated from each other. Exemplarily, thefirst branch joint 610 and the second branch joint 620 can be connected to the dry joint 630 independently, or both can be combined and then connected to thedry joint 630 . The trunk joint 630 , thefirst branch joint 610 and thesecond branch joint 620 may have a cylindrical structure, or may have a prismatic structure or the like. The trunk joint 630, thefirst branch joint 610 and the second branch joint 620 can be designed in various shapes according to needs, for example, the trunk joint 630, thefirst branch joint 610 and the second branch joint 620 can be prismatic or cylindrical. Thefirst branch joint 610 and thesecond branch joint 620 may have the same shape or different shapes. The connections among thetrunk connector 630 , thefirst branch connector 610 and thesecond branch connector 620 may be detachable connections in various forms such as threaded connection or clamping connection. The trunk joint 630, thefirst branch joint 610 and thesecond branch joint 620 may be made of metal material or insulating material such as plastic.

光纤束400的主干段430的远端可以连接主干接头630,光纤束400的第一分支段410的近端可以连接第一分支接头610,光纤束400的第二分支段420的近端可以连接第二分支接头620。主干接头630可以通过胶粘连接、焊接、卡接或螺纹连接等各种形式连接在主干段430的远端。与之类似的,第一分支接头610可以通过胶粘连接、焊接、卡接或螺纹连接等各种形式连接在第一分支段410的近端;第二分支接头620可以通过胶粘连接、焊接、卡接或螺纹连接等各种形式连接在第二分支段420的近端。The far end of thetrunk section 430 of thefiber bundle 400 can be connected to thetrunk connector 630, the near end of thefirst branch section 410 of thefiber bundle 400 can be connected to thefirst branch connector 610, and the near end of thesecond branch section 420 of thefiber bundle 400 can be connected to Thesecond branch joint 620 . The trunk joint 630 can be connected to the distal end of thetrunk section 430 in various forms such as adhesive connection, welding, clamping or threaded connection. Similarly, the first branch joint 610 can be connected to the proximal end of thefirst branch section 410 in various forms such as adhesive connection, welding, clamping or threaded connection; the second branch joint 620 can be connected by adhesive connection, welding The proximal end of thesecond branch section 420 is connected in various forms such as clamping or screwing.

主干段430的远端在接头组件600的各个接头连接在一起时可以与第一分支段410和第二分支段420的近端光耦合。光耦合指的是光声激励光可以在主干段430与第一分支段410和第二分支段420之间传递。也就是说,接头组件600的各个接头连接在一起时,光声激励光可以在光声内窥镜10上传递,光声内窥镜10可以正常工作。The distal end of thetrunk section 430 may be optically coupled to the proximal ends of thefirst branch section 410 and thesecond branch section 420 when the joints of thejoint assembly 600 are connected together. Optical coupling means that photoacoustic excitation light can be transmitted between thetrunk section 430 and thefirst branch section 410 and thesecond branch section 420 . That is to say, when the joints of thejoint assembly 600 are connected together, the photoacoustic excitation light can be transmitted on the photoacoustic endoscope 10, and the photoacoustic endoscope 10 can work normally.

本申请提供的光声内窥镜10将光纤束400分成三段,分别为主干段430、第一分支段410和第二分支段420,且在三段光纤的连接处设置主干接头630、第一分支接头610和第二分支接头620,当主干接头630、第一分支接头610和第二分支接头620连接时,主干段430与第一分支段410和第二分支段420可以实现光耦合,这样光声激励光可以在光声内窥镜10中正常传递,光声内窥镜10可以正常工作。当需要拆卸第一分支段410和第二分支段420之间的光声内窥镜10的部件时,可以解除接头组件600的各个接头的连接,此时主干段430与第一分支段410和第二分支段420可以分离,第一分支段410和第二分支段420彼此也可以分离,由此第一分支段410和第二分支段420分开后就不会对头端部上的零部件的拆卸产生阻挡。此外,当主干段430、第一分支段410或第二分支段420需要拆卸时,也可以解除接头组件600的各个接头的连接,进而可以达到维修或更换光纤的目的。这样的光声内窥镜10在返修拆卸时可以方便地拆卸维修或更换部件,可维修性更好,用户体验更好。The photoacoustic endoscope 10 provided by the present application divides theoptical fiber bundle 400 into three sections, which are thetrunk section 430, thefirst branch section 410 and thesecond branch section 420, and a trunk joint 630, asecond branch section 420, and a trunk joint 630 are provided at the joints of the three sections of optical fibers Abranch connector 610 and asecond branch connector 620, when thetrunk connector 630, thefirst branch connector 610 and thesecond branch connector 620 are connected, thetrunk segment 430 and thefirst branch segment 410 and thesecond branch segment 420 can realize optical coupling, In this way, the photoacoustic excitation light can be normally transmitted in the photoacoustic endoscope 10, and the photoacoustic endoscope 10 can work normally. When it is necessary to disassemble the parts of the photoacoustic endoscope 10 between thefirst branch section 410 and thesecond branch section 420, the connection of each joint of thejoint assembly 600 can be released, and thetrunk section 430 is connected to thefirst branch section 410 and thesecond branch section 420. Thesecond branch section 420 can be separated, and thefirst branch section 410 and thesecond branch section 420 can also be separated from each other, so that after thefirst branch section 410 and thesecond branch section 420 are separated, they will not interfere with the parts on the head end. Disassembly creates a blockage. In addition, when thetrunk section 430 , thefirst branch section 410 or thesecond branch section 420 needs to be disassembled, the connection of each joint of thejoint assembly 600 can also be disconnected, so as to achieve the purpose of repairing or replacing the optical fiber. Such a photoacoustic endoscope 10 can be conveniently disassembled for maintenance or parts can be replaced when it is repaired and disassembled, and has better maintainability and better user experience.

示例性地,如图6所示,头端部13可以包括凸阵超声探头200。如图4所示,凸阵超声探头200可以具有绕侧向方向L-L延伸的声窗210,侧向方向L-L垂直于插入部12的轴线P-P。声窗210可以以轴线L为轴延伸。轴线L垂直于插入部12的轴线P-P,在图4中为过L点且垂直于轴线P-P。声窗210可以是声学透镜的形式,也可以是其他各种可以会聚或发散声波的声学元件。优选地,声窗210可以包括非金属材料构成的部分,例如,声窗210可以包括不透明硅胶材料构成的部分,这样可以防止光声激励光通过声窗折射到头端部13的内部。如图3所示,头端部13上可以设置有位于凸阵超声探头200两侧的两个光声激励光窗300。也就是说,沿着侧向方向L-L,两个光声激励光窗300分别位于凸阵超声探头200的两侧。第一分支段410和第二分支段420的远端可以分别对准两个光声激励光窗300。两个光声激励光窗300可以分别是第一光声激励光窗310和第二光声激励光窗320,第一分支段410的远端可以对准第一光声激励光窗310,第二分支段420的远端可以对准第二光声激励光窗320。第一光声激励光窗310和第二光声激励光窗320可以分别位于凸阵超声探头200的两侧。这样的第一光声激励光窗310和第二光声激励光窗320分别形成的照射区域,可以分别从两侧不同方向覆盖凸阵超声探头200的探测区域,也就是说,这样的第一光声激励光窗310和第二光声激励光窗320可以形成较好的光声激励光光场,如图6所示。Exemplarily, as shown in FIG. 6 , thehead end 13 may include a convexarray ultrasound probe 200 . As shown in FIG. 4 , the convexarray ultrasound probe 200 may have anacoustic window 210 extending about a lateral direction L-L that is perpendicular to the axis P-P of theinsertion portion 12 . Theacoustic window 210 may extend about the axis L. As shown in FIG. The axis L is perpendicular to the axis P-P of theinsertion part 12 , passing through the point L in FIG. 4 and perpendicular to the axis P-P. Theacoustic window 210 may be in the form of an acoustic lens, or various other acoustic elements that can converge or diverge sound waves. Preferably, theacoustic window 210 may include a part made of non-metallic material, for example, theacoustic window 210 may include a part made of opaque silicone material, so as to prevent the photoacoustic excitation light from being refracted to the inside of thehead end 13 through the acoustic window. As shown in FIG. 3 , two photoacousticexcitation light windows 300 located on both sides of the convexarray ultrasound probe 200 may be provided on thehead end 13 . That is to say, along the lateral direction L-L, the twophotoacoustic excitation windows 300 are respectively located on both sides of the convexarray ultrasound probe 200 . The distal ends of thefirst branch section 410 and thesecond branch section 420 can be respectively aligned with the twophotoacoustic excitation windows 300 . The twophotoacoustic excitation windows 300 can be respectively a firstphotoacoustic excitation window 310 and a secondphotoacoustic excitation window 320, the distal end of thefirst branch section 410 can be aligned with the firstphotoacoustic excitation window 310, the second The distal end of the two-branch section 420 can be aligned with the secondphotoacoustic excitation window 320 . The first photoacoustic excitationlight window 310 and the second photoacoustic excitationlight window 320 may be respectively located on two sides of the convexarray ultrasound probe 200 . The irradiation areas formed by the firstphotoacoustic excitation window 310 and the secondphotoacoustic excitation window 320 respectively can cover the detection area of the convex arrayultrasonic probe 200 from different directions on both sides, that is to say, such first The photoacoustic excitationlight window 310 and the second photoacoustic excitationlight window 320 can form a better photoacoustic excitation light field, as shown in FIG. 6 .

示例性地,如图7所示,第一分支段410所包括的多个第一光纤的远端411和第二分支段420所包括的多个第二光纤的远端421都可以彼此分离并呈扇形散开。第一分支段410所包括的多个第一光纤的远端411可以彼此分离并可以形成第一扇形结构,第二分支段420所包括的多个第二光纤的远端421可以彼此分离并可以形成第二扇形结构。多个第一光纤的远端411可以具有相同的形状,也可以具有不同的形状,优选地,多个第一光纤的远端411可以呈多个细圆柱体的形式。多个第一光纤的远端411彼此分离后,彼此之间形成的角度可以是均匀分布的,多个第一光纤的远端411形成的第一扇形结构中,如图所示的最外侧的定位夹角α可以大于或等于凸阵超声探头200的扫描角度。多个第二光纤的远端421与多个第一光纤的远端411可以类似,不作赘述。值得注意的是,多个第一光纤的远端411形成的第一扇形结构,和多个第二光纤的远端421形成的第二扇形结构,第一扇形结构和第二扇形结构可以是相同的,也可以是不同的,在此不作具体限定。Exemplarily, as shown in FIG. 7 , the distal ends 411 of the plurality of first optical fibers included in thefirst branch section 410 and the distal ends 421 of the plurality of second optical fibers included in thesecond branch section 420 can be separated from each other and Fan out. The distal ends 411 of the plurality of first optical fibers included in thefirst branch section 410 can be separated from each other and can form a first fan-shaped structure, and the distal ends 421 of the plurality of second optical fibers included in thesecond branch section 420 can be separated from each other and can be formed. A second fan-shaped structure is formed. The distal ends 411 of the multiple first optical fibers may have the same shape or different shapes. Preferably, the distal ends 411 of the multiple first optical fibers may be in the form of multiple thin cylinders. After the distal ends 411 of the plurality of first optical fibers are separated from each other, the angles formed between them may be evenly distributed. In the first fan-shaped structure formed by the distal ends 411 of the plurality of first optical fibers, the outermost one as shown in the figure The positioning angle α may be greater than or equal to the scanning angle of the convex arrayultrasonic probe 200 . The distal ends 421 of the plurality of second optical fibers may be similar to the distal ends 411 of the plurality of first optical fibers, which will not be repeated here. It should be noted that the first fan-shaped structure formed by the distal ends 411 of the plurality of first optical fibers and the second fan-shaped structure formed by the distal ends 421 of the plurality of second optical fibers, the first fan-shaped structure and the second fan-shaped structure may be the same can also be different, and is not specifically limited here.

头端部13还可以包括光纤固定件,多个第一光纤的远端411和多个第二光纤的远端421都可以固定至光纤固定件。在如图6所示的实施例中,多个第一光纤的远端411固定至第一光纤固定件700,多个第二光纤的远端421固定至第二光纤固定件800。光纤固定件可以根据需要具有各种形状,优选地,如图6所示,第一光纤固定件700上可以设置有与多个第一光纤的远端411一一对应的多个第一通孔710,多个第一通孔710的轴线经过第一扇形结构的中心,多个第一光纤的远端411可以分别固定在对应的第一通孔710内,第二光纤固定件800上可以设置有与多个第二光纤的远端421一一对应的多个第二通孔810,多个第二通孔810的轴线可以经过第二扇形结构的中心,多个第二光纤的远端421可以分别固定在对应的第二通孔810内。Thehead end 13 may also include an optical fiber holder to which both the distal ends 411 of the plurality of first optical fibers and the distal ends 421 of the plurality of second optical fibers may be fixed. In the embodiment shown in FIG. 6 , the distal ends 411 of the plurality of first optical fibers are fixed to the first fiber holder 700 , and the distal ends 421 of the plurality of second optical fibers are fixed to thesecond fiber holder 800 . The optical fiber fixing member can have various shapes according to needs. Preferably, as shown in FIG. 710, the axes of the plurality of first throughholes 710 pass through the center of the first fan-shaped structure, the distal ends 411 of the plurality of first optical fibers can be respectively fixed in the corresponding first throughholes 710, and the second opticalfiber fixing member 800 can be provided with There are a plurality of second throughholes 810 corresponding one-to-one to the distal ends 421 of the plurality of second optical fibers, the axes of the plurality of second throughholes 810 can pass through the center of the second fan-shaped structure, and the distal ends 421 of the plurality of second optical fibers can be respectively fixed in the corresponding second throughholes 810 .

第一通孔710可以与多个第一光纤的远端411的形状相匹配,多个第一光纤的远端411可以通过胶粘的形式与多个第一通孔710固定连接,每个细分支后的第一光纤的远端411都可以与一个第一通孔710相对应。第二光纤固定件800可以与第一光纤固定件700相类似,在此不作赘述。The first throughhole 710 can match the shape of the distal ends 411 of the plurality of first optical fibers, and the distal ends 411 of the plurality of first optical fibers can be fixedly connected to the plurality of first throughholes 710 by gluing. Thedistal end 411 of the branched first optical fiber may correspond to a first throughhole 710 . The second opticalfiber fixing member 800 may be similar to the first optical fiber fixing member 700 , which will not be repeated here.

第一光纤固定件700的多个第一通孔710以及第二光纤固定件800的多个第二通孔810可以分别固定多个第一光纤的远端411和多个第二光纤的远端421,这种固定方式不但结构简单,而且可以使得多个第一光纤的远端411和多个第二光纤的远端421被第一光纤固定件700和第二光纤固定件800保护,不易因碰撞等外部原因而改变位置,提升了整体装置的稳定性。The plurality of first throughholes 710 of the first fiber fixing member 700 and the plurality of second throughholes 810 of the secondfiber fixing member 800 can respectively fix the distal ends 411 of a plurality of first optical fibers and the distal ends of a plurality of secondoptical fibers 421, this fixing method is not only simple in structure, but also allows the distal ends 411 of multiple first optical fibers and the distal ends 421 of multiple second optical fibers to be protected by the first optical fiber fixing member 700 and the second opticalfiber fixing member 800, which is not easy to cause The position is changed due to external reasons such as collisions, which improves the stability of the overall device.

光纤固定件可以固定至两个光声激励光窗300的内表面。示例性地,如图6所示,第一光声激励光窗310可以粘合至第一光纤固定件700的外表面,第二光声激励光窗320可以粘合至第二光纤固定件800的外表面。第一光纤固定件700的外形可以与第一光声激励光窗310相匹配,第一光纤固定件700的远端的外表面可以通过胶粘连接、螺纹连接或焊接等各种形式与第一光声激励光窗310固定连接。第二光纤固定件800的外形可以与第二光声激励光窗320相匹配,第二光纤固定件800的远端的外表面可以通过胶粘连接、螺纹连接或焊接等各种形式与第二光声激励光窗320固定连接。Fiber fixtures may be fixed to the inner surfaces of the twophotoacoustic excitation windows 300 . Exemplarily, as shown in FIG. 6 , the first photoacoustic excitationlight window 310 can be bonded to the outer surface of the first optical fiber holder 700, and the second photoacoustic excitationlight window 320 can be bonded to the secondoptical fiber holder 800. of the outer surface. The shape of the first optical fiber fixing member 700 can match the firstphotoacoustic excitation window 310, and the outer surface of the distal end of the first optical fiber fixing member 700 can be connected to the first optical fiber fixing member 700 through various forms such as adhesive connection, screw connection or welding. The photoacoustic excitationlight window 310 is fixedly connected. The shape of the second opticalfiber fixing member 800 can match the secondphotoacoustic excitation window 320, and the outer surface of the distal end of the second opticalfiber fixing member 800 can be connected with the second opticalfiber fixing member 800 through various forms such as adhesive connection, screw connection or welding. The photoacoustic excitationlight window 320 is fixedly connected.

示例性地,第一分支段410和第二分支段420的数值孔径之和可以大于或等于主干段430的数值孔径。数值孔径越大的光纤,接收光的能力越强。第一分支段410和第二分支段420的数值孔径之和大于或等于主干段430的数值孔径,能够确保经主干段430传递的光声激励光可以被第一分支段410和第二分支段420接收,进而光声激励光可以通过第一分支段410和第二分支段420继续向头端部13的远端传递。Exemplarily, the sum of the numerical apertures of thefirst branch section 410 and thesecond branch section 420 may be greater than or equal to the numerical aperture of thetrunk section 430 . A fiber with a larger numerical aperture has a stronger ability to receive light. The sum of the numerical apertures of thefirst branch section 410 and thesecond branch section 420 is greater than or equal to the numerical aperture of thetrunk section 430, which can ensure that the photoacoustic excitation light transmitted through thetrunk section 430 can be transmitted by thefirst branch section 410 and the second branch section. 420 , and then the photoacoustic excitation light can continue to be transmitted to the distal end of thehead end 13 through thefirst branch section 410 and thesecond branch section 420 .

示例性地,第一分支段410和第二分支段420的横截面积之和可以大于或等于主干段430的横截面积。这样设置同样为了确保经主干段430传递的光声激励光可以被第一分支段410和第二分支段420接收,进而光声激励光可以通过第一分支段410和第二分支段420继续向头端部13的远端传递。Exemplarily, the sum of the cross-sectional areas of thefirst branch section 410 and thesecond branch section 420 may be greater than or equal to the cross-sectional area of thetrunk section 430 . This setting is also to ensure that the photoacoustic excitation light transmitted through thetrunk section 430 can be received by thefirst branch section 410 and thesecond branch section 420, and then the photoacoustic excitation light can continue to travel through thefirst branch section 410 and thesecond branch section 420. The distal end of thehead end 13 is delivered.

示例性地,第一分支段410的近端可以热熔固化或胶粘至第一分支接头610。采取热熔固化或胶粘的形式将第一分支段410的近端与第一分支接头610固定连接,第一分支段410的近端与第一分支接头610之间的固定连接更加稳定。与之类似的,第二分支段420的近端可以热熔固化或胶粘至第二分支接头620,主干段430的远端可以热熔固化或胶粘至主干接头630,在此不作赘述。Exemplarily, the proximal end of thefirst branch segment 410 may be hot melted or glued to thefirst branch joint 610 . The proximal end of thefirst branch section 410 is fixedly connected to the first branch joint 610 in the form of hot-melt solidification or glue, and the fixed connection between the proximal end of thefirst branch section 410 and thefirst branch joint 610 is more stable. Similarly, the proximal end of thesecond branch section 420 can be heat-melted or glued to thesecond branch joint 620 , and the distal end of thetrunk section 430 can be heat-melted or glued to the trunk joint 630 , which will not be repeated here.

示例性地,接头组件600可以设置在操作部16内或者导光部15内。操作部16和导光部15内均具有足够的空间来容纳接头组件600。而且在维修时,操作部16和导光部15也更容易拆卸,接头组件600可以更加方便地取出。当然,本申请也并不排除将接头组件600设置在插入部12内的情况下。插入管121内通常有很多线束,例如,为使头端部13具有钳道器械操纵的功能,插入管121内可以设置有器械通道,器械通道内可以设置有钢丝绳,钢丝绳可以用来牵引医疗器械。光纤束400在插入部12中分叉成两股,因为插入部12中线束较多,插入部12内部的线束会随着弯曲部122的弯曲,会有一定的运动,如果光纤束在插入部12内分叉,插入部12内部的线束容易搅成一团,影响内窥镜使用的可靠性。Exemplarily, thejoint assembly 600 may be disposed in theoperation part 16 or in thelight guide part 15 . Both theoperation part 16 and thelight guide part 15 have sufficient space for accommodating thejoint assembly 600 . Moreover, during maintenance, theoperation part 16 and thelight guide part 15 are also easier to disassemble, and theconnector assembly 600 can be taken out more conveniently. Of course, the present application does not exclude the case where thejoint assembly 600 is disposed in theinsertion portion 12 . There are usually many wiring harnesses in theinsertion tube 121. For example, in order to make thehead end 13 have the function of clamping the instrument, an instrument channel can be arranged in theinsertion tube 121, and a steel wire rope can be arranged in the instrument channel, and the steel wire rope can be used to pull medical equipment. . Theoptical fiber bundle 400 is bifurcated into two strands in theinsertion portion 12, because there are many wire bundles in theinsertion portion 12, and the wire bundles inside theinsertion portion 12 will have a certain movement along with the bending of the bendingportion 122. If the optical fiber bundle is in theinsertion portion 12 is bifurcated, and the wiring harness inside theinsertion part 12 is easy to get into a ball, which affects the reliability of the use of the endoscope.

示例性地,如图8-13所示,主干接头630可以包括接头管631,主干段430的远端可以插至接头管631内,接头组件600还可以包括连接件640,接头管631和连接件640可以可拆卸地连接,以将第一分支接头610和第二分支接头620可以夹持在接头管631和连接件640之间。Exemplarily, as shown in FIGS. 8-13 , the trunk joint 630 may include ajoint tube 631, the distal end of thetrunk section 430 may be inserted into thejoint tube 631, and thejoint assembly 600 may also include aconnector 640, ajoint tube 631 and a connecting piece. Thepiece 640 can be detachably connected, so that thefirst branch joint 610 and the second branch joint 620 can be clamped between thejoint pipe 631 and theconnection piece 640 .

接头管631和连接件640可以根据需要设计成各种形状,例如,接头管631和连接件640可以为圆柱形结构,也可以具有棱柱形结构等。此外,连接件640也可以具有片状结构,只要能够与接头管631连接来夹持第一分支接头610和第二分支接头620即可。接头管631和连接件640可以采用金属材料或者例如塑料的绝缘材料制成。接头管631可以是金属筒状结构。主干段430的远端可以连接至接头管631内。主干段430的远端可以通过胶粘连接或者热熔固化等任何合适的方式连接在接头管631内。接头管631可以对主干段430的远端进行保护,在拆卸过程中,手持接头管631,因此不容易对主干段430的远端产生影响。接头管631和连接件640之间的连接可以是螺纹连接或卡接等各种形式的可拆卸连接。连接件640可以对第一分支接头610和第二分支接头620卡持限位,连接件640可以将第一分支接头610和第二分支接头620夹持在一起,连接件640对第一分支接头610和第二分支接头620可以起到定位效果。通过连接件640对第一分支接头610和第二分支接头620的夹持作用,接头管631与连接件640连接以后,可以达到限制第一分支接头610和第二分支接头620活动的目的。接头管631和连接件640的设置可以使得接头组件600的连接更加稳定,也更加方便。Thejoint pipe 631 and the connectingpiece 640 can be designed in various shapes as required, for example, thejoint pipe 631 and the connectingpiece 640 can be in a cylindrical structure, or can have a prismatic structure and the like. In addition, the connectingpiece 640 may also have a sheet structure, as long as it can be connected with thejoint pipe 631 to clamp thefirst branch joint 610 and thesecond branch joint 620 . Thejoint pipe 631 and the connectingpiece 640 can be made of metal material or insulating material such as plastic. Thejoint pipe 631 may be a metal cylindrical structure. The distal end of thetrunk section 430 may be connected into ajoint tube 631 . The distal end of thetrunk section 430 can be connected in thejoint tube 631 by any suitable means such as adhesive connection or hot-melt solidification. Thejoint tube 631 can protect the distal end of thetrunk section 430 . During the disassembly process, thejoint tube 631 is held by hand, so it is not easy to affect the distal end of thetrunk section 430 . The connection between thejoint pipe 631 and the connectingpiece 640 may be a detachable connection in various forms such as threaded connection or clamping connection. The connectingpiece 640 can clamp and limit thefirst branch joint 610 and thesecond branch joint 620, the connectingpiece 640 can clamp thefirst branch joint 610 and the second branch joint 620 together, and the connectingpiece 640 can hold the first branch joint 620 together. 610 and the second branch joint 620 can play a positioning effect. Through the clamping effect of the connectingpiece 640 on thefirst branch joint 610 and thesecond branch joint 620 , after thejoint pipe 631 is connected with the connectingpiece 640 , the purpose of restricting the movement of thefirst branch joint 610 and the second branch joint 620 can be achieved. The arrangement of thejoint pipe 631 and the connectingpiece 640 can make the connection of thejoint assembly 600 more stable and convenient.

可选地,也可以省略掉连接件640,第一分支接头610和第二分支接头620直接连接至接头管631。例如,第一分支接头610和第二分支接头620可以直接卡接或者螺纹连接至接头管631。为了方便第一分支接头610和第二分支接头620一起连接到接头管631上,在连接到接头管631上之前,第一分支接头610和第二分支接头620上可以设置有接合部,该接合部例如是沿轴向方向和/或周向方向限制第一分支接头610和第二分支接头620中的一个相对于另一个移动,然后再整体地连接至接头管631内。可选地,第一分支接头610和第二分支接头620上的接合部可以分别为凹槽和凸起,凹槽和凸起可以设置在第一分支接头610和第二分支接头620相对的侧面上。第一分支接头610和第二分支接头620贴合后,凸起插至该凹槽内,由此可以限制第一分支接头610和第二分支接头620中的一个相对于另一个移动。Optionally, the connectingpiece 640 can also be omitted, and thefirst branch joint 610 and thesecond branch joint 620 are directly connected to thejoint pipe 631 . For example, thefirst branch joint 610 and the second branch joint 620 can be directly clamped or screwed to thejoint pipe 631 . In order to facilitate the connection of thefirst branch joint 610 and the second branch joint 620 to thejoint pipe 631, before being connected to thejoint pipe 631, thefirst branch joint 610 and thesecond branch joint 620 may be provided with joints, the joint The part restricts one of thefirst branch joint 610 and the second branch joint 620 from moving relative to the other, for example, in the axial direction and/or the circumferential direction, and then is integrally connected into thejoint pipe 631 . Optionally, the joining parts on thefirst branch joint 610 and the second branch joint 620 can be grooves and protrusions respectively, and the grooves and protrusions can be arranged on opposite sides of thefirst branch joint 610 and the second branch joint 620 superior. After thefirst branch joint 610 and thesecond branch joint 620 are attached, the protrusion is inserted into the groove, thereby restricting the movement of one of thefirst branch joint 610 and the second branch joint 620 relative to the other.

示例性地,如图11所示,接头管631和连接件640可以螺纹连接。通过螺纹连接的形式将接头管631和连接件640连接,这样整体结构更加简单、易于实现,而且螺纹连接易于拆卸,使得整体装置对光纤束400的拆卸、更换更加方便。Exemplarily, as shown in FIG. 11 , thejoint pipe 631 and the connectingpiece 640 can be screwed together. Thejoint pipe 631 and theconnector 640 are connected by threaded connection, so that the overall structure is simpler and easier to implement, and the threaded connection is easy to disassemble, making it more convenient to disassemble and replace theoptical fiber bundle 400 of the overall device.

示例性地,连接件640可以连接至接头管631内。进一步地,接头管631和连接件640螺纹连接时,接头管631上可以设置有内螺纹,连接件640上可以设置有外螺纹。螺纹距离可以大于或等于第一分支接头610和第二分支接头620可移动的距离,这样可以确保第一分支接头610和第二分支接头620会优先与主干接头630相抵,进而可以确保光纤束400在接头组件600连接时具有较好的光声激励光传输效果。Exemplarily, the connectingpiece 640 may be connected into thejoint pipe 631 . Further, when thejoint pipe 631 and the connectingpiece 640 are screwed together, thejoint pipe 631 may be provided with internal threads, and the connectingpiece 640 may be provided with external threads. The thread distance can be greater than or equal to the movable distance of thefirst branch connector 610 and thesecond branch connector 620, which can ensure that thefirst branch connector 610 and thesecond branch connector 620 will preferentially abut against thetrunk connector 630, thereby ensuring that theoptical fiber bundle 400 When theconnector assembly 600 is connected, it has a better photoacoustic excitation light transmission effect.

连接件640的设置可以便于将第一分支接头610和第二分支接头620与接头管631连接。而且设置连接件640以后,第一分支接头610和第二分支接头620先被连接件640约束,再与接头管631连接,这样可以方便第一分支段410和第二分支段420相对主干段430的旋转。在连接件640相对接头管631旋转时,第一分支接头610和第二分支接头620也相对接头管631旋转,亦即第一分支段410和第二分支段420可以相对主干段430旋转。The arrangement of the connectingpiece 640 can facilitate the connection of thefirst branch joint 610 and the second branch joint 620 with thejoint pipe 631 . And after the connectingpiece 640 is set, thefirst branch joint 610 and thesecond branch joint 620 are constrained by the connectingpiece 640 first, and then connected with thejoint pipe 631, so that thefirst branch section 410 and thesecond branch section 420 can be connected to thetrunk section 430 conveniently. rotation. When the connectingpiece 640 rotates relative to thejoint pipe 631 , thefirst branch joint 610 and thesecond branch joint 620 also rotate relative to thejoint pipe 631 , that is, thefirst branch section 410 and thesecond branch section 420 can rotate relative to thetrunk section 430 .

示例性地,如图8-13所示,第一分支接头610可以包括第一接头部611,第一分支段410的近端可以连接至第一接头部611。第一接头部611可以容纳固定第一分支段410的近端,第一分支段410的近端可以通过胶粘或热熔固化等方式固定连接至第一接头部611。通过胶粘或热熔固化等方式,可以在第一分支段410的近端形成第一硬质段411。第一硬质段411固定至第一接头部611。第二分支接头620可以包括第二接头部621,第二分支段420的近端可以连接至第二接头部621。第二接头部621可以容纳固定第二分支段420的近端,第二分支段420的近端可以通过胶粘或热熔等方式固定连接至第二接头部621。通过胶粘或热熔固化等方式,可以在第二分支段420的近端形成第二硬质段421。第二硬质段42固定至第二接头部621。Exemplarily, as shown in FIGS. 8-13 , thefirst branch joint 610 may include a firstjoint part 611 , and the proximal end of thefirst branch section 410 may be connected to the firstjoint part 611 . The firstjoint part 611 can accommodate and fix the proximal end of thefirst branch section 410 , and the proximal end of thefirst branch section 410 can be fixedly connected to the firstjoint part 611 by means of gluing or heat-melting. The firsthard section 411 can be formed at the proximal end of thefirst branch section 410 by means of gluing or thermal melting. The firsthard section 411 is fixed to the firstjoint part 611 . Thesecond branch joint 620 may include a secondjoint part 621 to which a proximal end of thesecond branch section 420 may be connected. The secondjoint part 621 can receive and fix the proximal end of thesecond branch section 420 , and the proximal end of thesecond branch section 420 can be fixedly connected to the secondjoint part 621 by means of gluing or hot melting. The secondhard section 421 can be formed at the proximal end of thesecond branch section 420 by means of gluing or heat-melting. The second hard section 42 is fixed to the secondjoint part 621 .

连接件640可以具有光纤通道642,第一接头部611和第二接头部621的至少远端可以并排插至光纤通道642内,并且第一接头部611和第二接头部621的插至光纤通道642内的部分可以与光纤通道642相适配。意思是说,第一接头部611和第二接头部621的远端可以抵靠在一起,再一起并排插至光纤通道642内。其中,第一接头部611和第二接头部621的远端抵靠在一起以后的横截面可以是规则的,也可以是不规则的。第一接头部611和第二接头部621的远端抵靠在一起以后,第一分支段410和第二分支段420的近端也抵靠在一起,此时,光纤通道642可以对第一分支段410的近端和第二分支段420的近端进行限位,可以使得接头组件600处光声激励光的传递更加稳定。Theconnector 640 can have afiber optic channel 642, at least the distal ends of thefirst connector part 611 and thesecond connector part 621 can be inserted side by side into thefiber channel 642, and thefirst connector part 611 and thesecond connector part 621 can be inserted into the fiber channel Portions within 642 may be compatible withFiber Channel 642. That is to say, the distal ends of the firstjoint part 611 and the secondjoint part 621 can abut against each other, and then they can be inserted into thefiber channel 642 side by side. Wherein, the cross-section after the distal ends of the firstjoint part 611 and the secondjoint part 621 abut together can be regular or irregular. After the distal ends of the firstjoint part 611 and the secondjoint part 621 are abutted together, the proximal ends of thefirst branch section 410 and thesecond branch section 420 are also abutted together. At this time, thefiber channel 642 can be connected to the first The proximal end of thebranch section 410 and the proximal end of thesecond branch section 420 are limited, so that the transmission of the photoacoustic excitation light at thejoint assembly 600 is more stable.

光纤通道642的远端可以设置有限位块643,限位块643在接头管631与连接件640连接时可以沿着朝向远端的方向对第一接头部611和第二接头部621进行限位。在接头管631与连接件640连接时,限位块643可以限制第一接头部611和第二接头部621向远端移动。由此,沿着轴向方向将第一接头部611和第二接头部621夹持在限位块643和接头管631之间。The distal end of thefiber channel 642 can be provided with alimit block 643, and thelimit block 643 can limit the firstjoint part 611 and the secondjoint part 621 along the direction toward the distal end when thejoint tube 631 is connected to theconnector 640. . When thejoint tube 631 is connected to the connectingpiece 640 , the stop block 643 can limit the movement of the firstjoint part 611 and the secondjoint part 621 to the distal end. Thus, the firstjoint part 611 and the secondjoint part 621 are sandwiched between thestopper 643 and thejoint pipe 631 in the axial direction.

示例性地,如图8和图9所示,限位块643可以包括在光纤通道642的内侧壁上沿预定方向M-M相对设置的第一固定限位块6431和第二固定限位块6432,预定方向M-M垂直于光纤束400的延伸方向,第一固定限位块6431可以位于第一接头部611所在的一侧,第二固定限位块6432可以位于第二接头部621所在的一侧。第一固定限位块6431的形状可以与第一接头部611的远端面的形状相适配,以实现第一固定限位块6431可以限制第一接头部611向远端移动。第二固定限位块6432的形状可以与第二接头部621的远端面的形状相适配,以实现第二固定限位块6432可以限制第二接头部621向远端移动。第一固定限位块6431和第二固定限位块6432之间可以具有预定间距D,预定间距D可以大于第一接头部611沿预定方向M-M的尺寸d1且可以大于第二接头部621沿预定方向M-M的尺寸d2。Exemplarily, as shown in FIG. 8 and FIG. 9 , thestopper 643 may include a first fixedstopper 6431 and a second fixedstopper 6432 oppositely arranged on the inner wall of thefiber channel 642 along a predetermined direction M-M, The predetermined direction M-M is perpendicular to the extending direction of theoptical fiber bundle 400 , the first fixedstopper 6431 can be located on the side where the firstjoint part 611 is located, and the second fixedstopper 6432 can be located on the side where the secondjoint part 621 is located. The shape of the first fixedstopper 6431 can be adapted to the shape of the distal surface of the firstjoint part 611 , so that the first fixedstopper 6431 can limit the movement of the firstjoint part 611 to the distal end. The shape of the second fixedstopper 6432 can be adapted to the shape of the distal surface of the secondjoint part 621 , so that the second fixedstopper 6432 can limit the movement of the secondjoint part 621 to the distal end. There may be a predetermined distance D between the first fixedlimit block 6431 and the second fixedlimit block 6432, and the predetermined distance D may be greater than the dimension d1 of the firstjoint part 611 along the predetermined direction M-M and may be greater than the dimension d1 of the secondjoint part 621 along the predetermined direction. Dimension d2 in direction M-M.

这样的接头组件600在拆卸时,首先解除接头管631和连接件640的连接,然后可以将第一接头部611向近端移动一段距离。第一接头部611的远端脱离光纤通道642,第一分支段410位于光纤通道642内,其中,第一分支段410为光纤段,其外径很小。由于第一固定限位块6431和第二固定限位块6432之间的在预定方向M-M上的预定间距D大于第二接头部621沿预定方向M-M的尺寸d2,第二接头部621可以从第一固定限位块6431和第二固定限位块6432之间被拉出,如图13所示,进而实现了拆卸主干段430、第一分支段410和第二分支段420的目的。When such ajoint assembly 600 is disassembled, the connection between thejoint tube 631 and the connectingpiece 640 is firstly released, and then the firstjoint part 611 can be moved proximally for a certain distance. The distal end of the firstjoint portion 611 is separated from thefiber channel 642, and thefirst branch section 410 is located in thefiber channel 642, wherein thefirst branch section 410 is an optical fiber section with a small outer diameter. Since the predetermined distance D between the first fixedstopper 6431 and the second fixedstopper 6432 in the predetermined direction M-M is greater than the dimension d2 of the secondjoint part 621 along the predetermined direction M-M, the secondjoint part 621 can be moved from the first The space between the first fixedlimit block 6431 and the second fixedlimit block 6432 is pulled out, as shown in FIG. 13 , and the purpose of disassembling thetrunk section 430 , thefirst branch section 410 and thesecond branch section 420 is achieved.

类似地,解除接头管631和连接件640的连接后,也可以将第二接头部621向近端移动一段距离。第二接头部621的远端脱离光纤通道642,第二分支段420位于光纤通道642内,其中,第二分支段420为光纤段,其外径很小。由于第一固定限位块6431和第二固定限位块6432之间的在预定方向M-M上的预定间距D大于第一接头部611沿预定方向M-M的尺寸d1,第一接头部611可以从第一固定限位块6431和第二固定限位块6432之间被拉出,进而也可以实现拆卸主干段430、第一分支段410和第二分支段420的目的。并且还能够将连接件640从第一分支段410和第二分支段420上拆卸下来。Similarly, after the connection between thejoint tube 631 and the connectingpiece 640 is released, the secondjoint part 621 can also be moved proximally for a certain distance. The distal end of the secondjoint part 621 is separated from thefiber channel 642, and thesecond branch section 420 is located in thefiber channel 642, wherein thesecond branch section 420 is an optical fiber section with a small outer diameter. Since the predetermined distance D between the first fixedstopper 6431 and the second fixedstopper 6432 in the predetermined direction M-M is greater than the dimension d1 of the firstjoint part 611 along the predetermined direction M-M, the firstjoint part 611 can be moved from the second The space between the first fixedstopper 6431 and the second fixedstopper 6432 is pulled out, so as to achieve the purpose of disassembling thetrunk section 430 , thefirst branch section 410 and thesecond branch section 420 . And the connectingpiece 640 can also be detached from thefirst branch section 410 and thesecond branch section 420 .

优选地,预定间距D可以大于或等于第一接头部611沿预定方向M-M的尺寸d1和第二分支段420的外径之和d4,如图12-13所示。在一些实施例中,第二分支段420的外径虽然很小,但也是不可忽略的。预定间距D大于或等于d1和d4之和,可以确保接头组件600在拆卸时,第一接头部611可以从光纤通道642被拉出。Preferably, the predetermined distance D may be greater than or equal to the sum d4 of the dimension d1 of the firstjoint portion 611 along the predetermined direction M-M and the outer diameter of thesecond branch segment 420 , as shown in FIGS. 12-13 . In some embodiments, although the outer diameter of thesecond branch segment 420 is very small, it is not negligible. The predetermined distance D is greater than or equal to the sum of d1 and d4, which can ensure that thefirst connector part 611 can be pulled out from thefiber channel 642 when theconnector assembly 600 is disassembled.

优选地,预定间距D可以大于或等于第二接头部621沿预定方向M-M的尺寸d2和第一分支段410的外径之和d3。在一些实施例中,第一分支段410的外径虽然很小,但也是不可忽略的。预定间距D大于或等于d2和d3之和,可以确保接头组件600在拆卸时,第二接头部621可以从光纤通道642被拉出。Preferably, the predetermined distance D may be greater than or equal to the sum d3 of the dimension d2 of the secondjoint portion 621 along the predetermined direction M-M and the outer diameter of thefirst branch section 410 . In some embodiments, although the outer diameter of thefirst branch segment 410 is very small, it is not negligible. The predetermined distance D is greater than or equal to the sum of d2 and d3, which can ensure that thesecond connector part 621 can be pulled out from thefiber channel 642 when theconnector assembly 600 is disassembled.

示例性地,光纤通道642的横截面可以呈矩形或者圆角矩形。这样的光纤通道642可以限制第一接头部611和第二接头部621的转动,以确保第一固定限位块6431可以位于第一接头部611所在的一侧,第二固定限位块6432可以位于第二接头部621所在的一侧,进而可以确保接头组件在拆卸时,可以如上文所述的过程将主干段430、第一分支段410和第二分支段420分离开。而且这样可以避免第一固定限位块6431与第一接头部611所在的一侧不匹配,进而导致第一固定限位块6431对第一接头部611的限位效果不好的情况。类似地,这样可以避免第二固定限位块6432与第二接头部621所在的一侧不匹配,进而导致第二固定限位块6432对第二接头部621的限位效果不好的情况。Exemplarily, the cross section of thefiber channel 642 may be a rectangle or a rectangle with rounded corners. Such afiber channel 642 can limit the rotation of the firstjoint part 611 and the secondjoint part 621, so as to ensure that the first fixedstopper 6431 can be located on the side where the firstjoint part 611 is located, and the second fixedstopper 6432 can be Located on the side where the secondjoint part 621 is located, it can ensure that when the joint assembly is disassembled, thetrunk section 430 , thefirst branch section 410 and thesecond branch section 420 can be separated as described above. Moreover, this can avoid the situation that the first fixed limitingblock 6431 does not match the side where the firstjoint portion 611 is located, and thus the first fixed limitingblock 6431 has a poor limiting effect on the firstjoint portion 611 . Similarly, this can avoid the situation that the second fixedlimit block 6432 does not match the side where the secondjoint part 621 is located, and thus the second fixedlimit block 6432 has a poor limiting effect on the secondjoint part 621 .

在上文描述的实施例中,可选地,在另一组未示出的实施例中,限位块可以活动连接至连接件640。具体地,连接件640可以在限位第一接头部611和第二接头部621的限位位置和释放第一接头部611和第二接头部621的释放位置之间可移动。In the embodiments described above, optionally, in another group of embodiments not shown, the limiting block can be movably connected to the connectingmember 640 . Specifically, the connectingmember 640 can move between a limiting position for limiting the firstjoint part 611 and the secondjoint part 621 and a release position for releasing the firstjoint part 611 and the secondjoint part 621 .

示例性地,限位块643处于限位位置时,可以限制第一接头部611和第二接头部621向远端移动,亦即限制此时第一接头部611和第二接头部621位于连接件640以内的部分,使得这部分无法朝向远端被拉出连接件640。限位块643处于释放位置时,可以解除对第一接头部611和第二接头部621向远端移动的限制,亦即限位块643处于释放位置时,此时第一接头部611和第二接头部621位于连接件640以内的部分可以被拉出连接件640。限位块643可以通过电动或手动等形式在所述限位位置和所述释放位置之间可移动,接头组件600处于连接状态时,接头管631和连接件640连接,限位块643可以处于限位位置;需要拆卸接头组件600时,接头管631和连接件640分离开,限位块643移动到释放位置,限位块643解除对第一接头管611和第二接头管621向远端移动的约束,此时,第一接头管611和第二接头管621可以分别从光纤通道642拉出。由此,可以实现拆卸接头组件600并分别拆卸主干段430、第一分支段410和第二分支段420的目的。具体地,限位块643在限位位置和释放位置之间可移动,可以是限位块643可以从光纤通道642上拆卸下来。Exemplarily, when thelimit block 643 is at the limit position, it can limit the movement of the firstjoint part 611 and the secondjoint part 621 to the distal end, that is, limit the position of the firstjoint part 611 and the secondjoint part 621 at this time. The portion inside themember 640, so that this part cannot be pulled out of the connectingmember 640 toward the distal end. When thestop block 643 is in the release position, the restriction on the distal movement of the firstjoint part 611 and the secondjoint part 621 can be released, that is, when thestop block 643 is in the release position, the firstjoint part 611 and the secondjoint part 621 are now in the release position. The part of the twojoint parts 621 inside the connectingpiece 640 can be pulled out of the connectingpiece 640 . Thelimit block 643 can be moved between the limit position and the release position by electric or manual means. When thejoint assembly 600 is in the connected state, thejoint pipe 631 and the connectingpiece 640 are connected, and thelimit block 643 can be in the Limit position; when thejoint assembly 600 needs to be disassembled, thejoint tube 631 and the connectingpiece 640 are separated, thelimit block 643 moves to the release position, and thelimit block 643 releases the firstjoint tube 611 and the secondjoint tube 621 to the distal end Movement constraints, at this time, thefirst connector tube 611 and thesecond connector tube 621 can be pulled out from thefiber channel 642 respectively. Thus, the purpose of disassembling thejoint assembly 600 and disassembling thetrunk section 430 , thefirst branch section 410 and thesecond branch section 420 can be achieved. Specifically, the limitingblock 643 is movable between the limiting position and the releasing position, and the limitingblock 643 may be disassembled from theoptical fiber channel 642 .

示例性地,活动的限位块643可以是螺钉,其螺纹连接至连接件640,当限位块643需要移动到限位位置时,可以将螺钉朝向连接件640内旋拧,使其阻挡在第一接头部611和第二接头部621的远端。或者,在第一接头部611和第二接头部621的外侧面上可以设置凹槽或者通孔,螺钉旋入凹槽或者通孔内,可以对第一接头部611和第二接头部621进行限位。限位块643可以是一个,也可以是两个。当限位块643为一个时,可以同时限位第一接头部611和第二接头部621。当限位块643为两个时,可以分别限位第一接头部611和第二接头部621。Exemplarily, the movable limitingblock 643 can be a screw, which is threadedly connected to the connectingpiece 640. When the limitingpiece 643 needs to move to the limited position, the screw can be screwed toward the connectingpiece 640, so that it stops The distal ends of the firstjoint part 611 and the secondjoint part 621 . Alternatively, a groove or a through hole can be provided on the outer surface of the firstjoint part 611 and the secondjoint part 621, and the screw is screwed into the groove or the through hole, and the firstjoint part 611 and the secondjoint part 621 can be connected. limit. There can be one or two limitingblocks 643 . When there is one limitingblock 643, the firstjoint part 611 and the secondjoint part 621 can be limited at the same time. When there are two limitingblocks 643, the firstjoint part 611 and the secondjoint part 621 can be limited respectively.

示例性地,第一分支接头610还可以包括从第一接头部611的远端朝向光纤束400的远端延伸的第一束线部612,在接头管631与连接件640连接时,第一束线部612近端可以位于光纤通道642内,第一束线部612可以伸出到连接件640之外。在拆卸接头组件600时,第一接头部611的移动可以通过手持第一束线部612实现,第一束线部612可以保护第一分支段410,第一束线部612的设置使得接头组件600的安装和拆卸更加方便,也提升了整体装置的稳定性。Exemplarily, thefirst branch connector 610 may further include a firstwire harness portion 612 extending from the distal end of thefirst connector portion 611 toward the distal end of theoptical fiber bundle 400 , and when theconnector tube 631 is connected to theconnector 640 , the first The proximal end of thewire harness part 612 can be located in thefiber channel 642 , and the firstwire harness part 612 can protrude out of the connectingpiece 640 . When disassembling thejoint assembly 600, the movement of the firstjoint part 611 can be realized by holding the firstwire harness part 612. The firstwire harness part 612 can protect thefirst branch section 410. The setting of the firstwire harness part 612 makes the joint assembly The 600 is more convenient to install and disassemble, and also improves the stability of the overall device.

类似地,第二分支接头620还可以包括从第二接头部621的远端朝向光纤束400的远端延伸的第二束线部622,在接头管631与连接件640连接时,第二束线部622近端可以位于光纤通道642内,第二束线部622可以伸出到连接件640之外。在拆卸接头组件600时,第二接头部621的移动可以通过手持第二束线部622实现,第二束线部622可以保护第二分支段420,第二束线部622的设置使得接头组件600的安装和拆卸更加方便,也提升了整体装置的稳定性。Similarly, thesecond branch connector 620 may also include a secondwire harness portion 622 extending from the distal end of thesecond connector portion 621 toward the distal end of thefiber bundle 400 , and when theconnector tube 631 is connected to theconnector 640 , the second bundle The proximal end of thewire part 622 can be located in thefiber channel 642 , and the secondwire bundle part 622 can protrude out of the connectingpiece 640 . When disassembling thejoint assembly 600, the movement of the secondjoint part 621 can be realized by holding the secondwire harness part 622. The secondwire harness part 622 can protect thesecond branch section 420. The setting of the secondwire harness part 622 makes the joint assembly The 600 is more convenient to install and disassemble, and also improves the stability of the overall device.

如上文所述中的接头组件600在安装时,第一分支接头610和第二分支接头620合并为阶梯状圆柱体,小尺寸端602可以通过连接件640远端的通孔642。限位台阶603和卡持凸缘641配合约束,以及大尺寸端601与连接件640的配合约束,可以对第一分支接头610和第二分支接头620起到定位效果。连接件640与接头管631通过螺纹连接,螺纹距离大于或等于第一分支接头610和第二分支接头620的可移动距离,可以确保连接件640与接头管631连接时,第一分支接头610和第二分支接头620与主干接头630的端面可以相抵,进而可以确保第一分支段410和第二分支段420与主干段的光耦合效果较好。When thejoint assembly 600 described above is installed, thefirst branch joint 610 and the second branch joint 620 merge into a stepped cylinder, and the small-sized end 602 can pass through the throughhole 642 at the distal end of the connectingpiece 640 . The cooperation constraint between the limiting step 603 and the holding flange 641 , and the cooperation constraint between the large-size end 601 and the connectingpiece 640 can have a positioning effect on thefirst branch joint 610 and thesecond branch joint 620 . The connectingpiece 640 is threadedly connected to thejoint pipe 631, and the thread distance is greater than or equal to the movable distance between thefirst branch joint 610 and thesecond branch joint 620, which can ensure that when the connectingpiece 640 is connected to thejoint pipe 631, thefirst branch joint 610 and thesecond branch joint 620 The end faces of thesecond branch joint 620 and the trunk joint 630 can be abutted against each other, thereby ensuring a better optical coupling effect between thefirst branch section 410 and thesecond branch section 420 and the trunk section.

示例性地,第一分支接头610和第二分支接头620可以具有相同的结构。这样可以将它们做成一种标准件,而不用为第一分支接头610和第二分支接头620分别开模制作。Exemplarily, thefirst branch joint 610 and thesecond branch joint 620 may have the same structure. In this way, they can be made into a standard piece, instead of making separate molds for thefirst branch joint 610 and thesecond branch joint 620 .

示例性地,第一分支接头610和第二分支接头620中的每个上可以设置有横截面为半圆形的凹腔,第一分支段410的近端和第二分支段420的近端可以分别固定至第一分支接头610的凹腔613和第二分支接头620的凹腔623内,如图9所示。第一分支段410的近端可以粘合至凹腔613的侧壁,从而与第一分支接头610连接。第二分支段420的近端可以粘合至凹腔623的侧壁,从而与第二分支接头620连接。这样,第一分支接头610和第二分支接头620的结构比较简单,而且光纤束一般采用圆形截面结构,第一分支接头610和第二分支接头620这样的设计能更好地与光纤束固定连接。Exemplarily, each of thefirst branch joint 610 and thesecond branch joint 620 may be provided with a concave cavity with a semicircular cross section, the proximal end of thefirst branch section 410 and the proximal end of thesecond branch section 420 They can be respectively fixed in thecavity 613 of thefirst branch joint 610 and thecavity 623 of thesecond branch joint 620 , as shown in FIG. 9 . The proximal end of thefirst branch section 410 may be bonded to the sidewall of thecavity 613 to be connected with thefirst branch joint 610 . The proximal end of thesecond branch section 420 may be bonded to the sidewall of thecavity 623 to be connected with thesecond branch joint 620 . In this way, the structures of thefirst branch connector 610 and thesecond branch connector 620 are relatively simple, and the optical fiber bundle generally adopts a circular cross-sectional structure, and the design of thefirst branch connector 610 and thesecond branch connector 620 can be better fixed with the optical fiber bundle connect.

示例性地,如图10所示,第一分支段410的近端可以形成有与第一分支接头610的凹腔相适配的第一硬质段411。第一硬质段411可以通过胶粘或热熔固化的方式与第一分支接头610固定连接,而且还可以使第一硬质段411定形状呈半圆柱状,以与第一分支接头610的凹腔相适配。第一硬质段411可以延伸到第一分支接头610的远端之外。第一硬质段411是第一分支段410的一部分,具体地,第一硬质段411是第一分支段410的近端上最靠近主干段430的一部分。第一分支段410还可以包括第一过渡段412,第一过渡段412在第一分支段410上的位置紧靠第一硬质段411,第一过渡段412的位置比第一硬质段411更靠近远端。第一硬质段411的设置是为了便于第一分支段410与第一分支接头610的连接,在第一分支5段410上的其他部分,第一分支段410都可以是圆柱状的,而且可以是柔Exemplarily, as shown in FIG. 10 , the proximal end of thefirst branch section 410 may be formed with a firsthard section 411 adapted to the cavity of thefirst branch joint 610 . The firsthard section 411 can be fixedly connected with thefirst branch joint 610 by gluing or hot-melt solidification, and the firsthard section 411 can also be shaped into a semi-cylindrical shape to match the concave shape of thefirst branch joint 610. cavity fit. The firstrigid section 411 may extend beyond the distal end of thefirst branch joint 610 . The firsthard section 411 is a part of thefirst branch section 410 , specifically, the firsthard section 411 is a part of the proximal end of thefirst branch section 410 closest to thetrunk section 430 . Thefirst branch section 410 can also include afirst transition section 412, the position of thefirst transition section 412 on thefirst branch section 410 is close to the firsthard section 411, and the position of thefirst transition section 412 is lower than that of the first hard section. 411 is closer to the far end. The setting of the firsthard section 411 is to facilitate the connection between thefirst branch section 410 and thefirst branch joint 610. In other parts on thefirst branch section 410, thefirst branch section 410 can be cylindrical, and can be soft

性的。第一过渡段412由近端到远端的形状可以是由半圆柱状渐变为圆柱状。第一过渡段412的设置,可以在第一硬质段411和第一分支段410的其他部分之间设置过渡区域。可选地,第一过渡段412上,由近端向远端,sexual. The shape of thefirst transition section 412 from the proximal end to the distal end may gradually change from a semi-cylindrical shape to a cylindrical shape. The arrangement of thefirst transition section 412 can provide a transition area between the firsthard section 411 and other parts of thefirst branch section 410 . Optionally, on thefirst transition section 412, from the proximal end to the distal end,

可以逐渐套上光纤保护皮,并在除第一硬质段411和第一过渡段412以外0的第一分支段410上都套上光纤保护皮,这样可以利用光纤保护皮保护第The optical fiber protective skin can be put on gradually, and the optical fiber protective skin can be put on thefirst branch section 410 except the firsthard section 411 and thefirst transition section 412, so that the optical fiber protective skin can be used to protect thefirst branch section 410.

一分支段410的柔性部分,提升整体装置的稳定性。A flexible part of thebranch section 410 improves the stability of the whole device.

示例性地,第二分支段420的近端也可以形成有与第二分支接头620的凹腔相适配的第二硬质段421,第二硬质段421可以延伸到第二分支接Exemplarily, the proximal end of thesecond branch section 420 may also be formed with a secondhard section 421 adapted to the concave cavity of thesecond branch joint 620, and the secondhard section 421 may extend to the second branch joint.

头620的远端之外。第二分支段420上形成有第二硬质段421,与上述第5一分支段410上形成有第一硬质段411类似,在此不作赘述。outside the distal end of thehead 620. The secondhard section 421 is formed on thesecond branch section 420 , which is similar to the firsthard section 411 formed on the fifthfirst branch section 410 , and will not be repeated here.

如上文所述中的接头组件600在安装时,第一分支接头610和第二分支接头620相抵靠,第一束线部612和第二束线部622可以穿过连接件640远端的光纤通孔642延伸出来。第一固定限位块6431可以约束第一接头部611,第二固定限位块6432可以约束第二接头部621,可以对第一分支接0头610和第二分支接头620起到定位效果。连接件640与接头管631通过When theconnector assembly 600 as described above is installed, thefirst branch connector 610 and thesecond branch connector 620 abut against each other, and thefirst beam part 612 and thesecond beam part 622 can pass through the optical fiber at the distal end of theconnector 640 Throughholes 642 extend out. The first fixedlimit block 6431 can constrain the firstjoint part 611 , and the second fixedlimit block 6432 can constrain the secondjoint part 621 , and can position thefirst branch joint 610 and thesecond branch joint 620 .Connector 640 andjoint pipe 631 pass through

螺纹连接,螺纹距离大于或等于第一分支接头610和第二分支接头620的可移动距离,可以确保连接件640与接头管631连接时,第一分支接头610和第二分支接头620与主干接头630的端面可以相抵,进而可以确保第一分支段410和第二分支段420与主干段的光耦合效果较好。Threaded connection, the thread distance is greater than or equal to the movable distance of thefirst branch joint 610 and thesecond branch joint 620, which can ensure that when the connectingpiece 640 is connected to thejoint pipe 631, thefirst branch joint 610 and thesecond branch joint 620 are connected to the trunk joint. The end surfaces of the 630 can be offset, thereby ensuring a better optical coupling effect between thefirst branch section 410 and thesecond branch section 420 and the trunk section.

5这样的接头组件600在拆卸时,可以经历如图12所示的第一拆卸状5 When such ajoint assembly 600 is disassembled, it can undergo a first disassembly state as shown in FIG. 12

态和如图13所示的第二拆卸状态。拆卸接头组件600时,先将接头管631和连接件640的螺纹连接解除,亦即将接头管631旋出,或将连接件640旋出。然后将第一分支接头610或第二分支接头620中的任一段向近端推state and the second disassembled state as shown in Figure 13. When thejoint assembly 600 is disassembled, the threaded connection between thejoint pipe 631 and the connectingpiece 640 is first released, that is, thejoint pipe 631 is unscrewed, or the connectingpiece 640 is unscrewed. Any section in the first branch joint 610 or thesecond branch joint 620 is then pushed to the proximal end

动,如图12所示,以将第一分支接头610向近端推动为例,此时第一接头0部611脱离连接件640,第一束线部612位于连接件640内部,第一分支As shown in Figure 12, taking pushing the first branch joint 610 to the proximal end as an example, at this time the firstjoint O part 611 is separated from the connectingpiece 640, the firstwire harness part 612 is located inside the connectingpiece 640, and the first branch

段410的一部分位于连接件640远端的光纤通孔642中。第一固定限位块6431和第二固定限位块6432之间的在预定方向M-M上的预定间距大于或等于第二接头部621沿预定方向M-M的尺寸和第一分支段410的外径之和,因此可以如图13所示将第二分支段420从连接件640远端的光纤通孔642处拉出,进而达到拆卸光纤束400的目的。A portion ofsegment 410 is located in fiber optic throughhole 642 at the distal end ofconnector 640 . The predetermined distance between the first fixedlimit block 6431 and the second fixedlimit block 6432 in the predetermined direction M-M is greater than or equal to the difference between the dimension of the secondjoint part 621 along the predetermined direction M-M and the outer diameter of thefirst branch section 410 And, therefore, as shown in FIG. 13 , thesecond branch segment 420 can be pulled out from the optical fiber throughhole 642 at the distal end of theconnector 640 , so as to achieve the purpose of detaching theoptical fiber bundle 400 .

示例性地,如图11、图12和图13所示,主干段430上可以套设有主干保护皮431,主干保护皮431可以是塑胶材料的,主干保护皮431可以保护主干段430,也可以减少主干段430受到的外部干扰。接头管631的近端可以同轴设置有内套管632,内套管632的外径可以小于接头管631的外径,主干段430可以穿设于内套管632,主干保护皮431的远端可以套设在内套管632上。如上文所述,接头管631可以是金属筒状结构,内套管632可以是与接头管631同轴的圆筒形金属结构。内套管632与接头管631可以采用一体成型工艺加工而成,也可以是分体制造后连接在一起的。内套管632的外径可以小于接头管631的外径。主干段430可以穿设于内套管632,主干保护皮431的远端可以套设在内套管632上。主干保护皮431可以通过过盈配合等形式固定连接在内套管632上。主干保护皮431可以包裹住内套管632的近端,这样,主干保护皮431对主干段430的保护更加全面,整体装置的稳定性更强。Exemplarily, as shown in FIG. 11 , FIG. 12 and FIG. 13 , thetrunk section 430 can be covered with atrunk protection skin 431 , thetrunk protection skin 431 can be made of plastic material, and thetrunk protection skin 431 can protect thetrunk section 430 . External interference to thetrunk section 430 can be reduced. The proximal end of thejoint tube 631 can be coaxially provided with aninner sleeve 632, the outer diameter of theinner sleeve 632 can be smaller than the outer diameter of thejoint tube 631, thetrunk section 430 can be passed through theinner sleeve 632, and the distal end of thetrunk protection skin 431 The end can be sleeved on theinner sleeve 632. As mentioned above, thejoint pipe 631 may be a metal cylindrical structure, and theinner sleeve 632 may be a cylindrical metal structure coaxial with thejoint pipe 631 . Theinner casing 632 and thejoint pipe 631 can be processed in one piece, or they can be connected together after separate manufacturing. The outer diameter of theinner sleeve 632 may be smaller than the outer diameter of thejoint pipe 631 . Thetrunk section 430 can be passed through theinner sleeve 632 , and the distal end of thetrunk protection skin 431 can be sleeved on theinner sleeve 632 . Thetrunk protection skin 431 can be fixedly connected to theinner sleeve 632 through interference fit or the like. Thetrunk protection skin 431 can wrap the proximal end of theinner sleeve 632, so that thetrunk protection skin 431 can protect thetrunk section 430 more comprehensively, and the stability of the whole device is stronger.

示例性地,如图11、图12和图13所示,内套管632的外侧壁上可以设置有环形槽633,主干保护皮431可以通过在环形槽633处缠绕的固定线固定在内套管632上。扎紧固定线可以使得主干保护皮431固定连接在内套管632上更稳定,增强了主干保护皮431与内套管632之间固定连接的稳定性。Exemplarily, as shown in FIG. 11 , FIG. 12 and FIG. 13 , anannular groove 633 may be provided on the outer wall of theinner sleeve 632 , and the trunkprotective skin 431 may be fixed to the inner sleeve by a fixing wire wound around theannular groove 633Tube 632 on. Tightening the fixing wire can make thetrunk protection skin 431 fixedly connected to theinner sleeve 632 more stable, and enhance the stability of the fixed connection between thetrunk protection skin 431 and theinner sleeve 632 .

在本发明的描述中,需要理解的是,方位词如“前”、“后”、“上”、“下”、“左”、“右”、“横向”、“竖向”、“垂直”、“水平”和“顶”、“底”等所指示的方位或位置关系通常是基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,在未作相反说明的情况下,这些方位词并不指示和暗示所指的装置或元件必须具有特定的方位或者以特定的方位构造和操作,因此不能理解为对本发明保护范围的限制;方位词“内”、“外”是指相对于各部件本身的轮廓的内外。In the description of the present invention, it should be understood that orientation words such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "vertical" ", "horizontal" and "top", "bottom" and other indicated orientations or positional relationships are generally based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and no contrary description is made In the case of , these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the scope of protection of the present invention; the orientation words "in", " "Outside" refers to inside and outside with respect to the outline of each component itself.

为了便于描述,在这里可以使用区域相对术语,如“在……之上”、“在……上方”、“在……上表面”、“上面的”等,用来描述图中所示的一个或多个部件或特征与其他部件或特征的区域位置关系。应当理解的是,区域相对术语不但包含部件在图中所描述的方位,还包括使用或操作中的不同方位。例如,如果附图中的部件被整体倒置,则部件“在其他部件或特征上方”或“在其他部件或特征之上”的将包括部件“在其他部件或构造下方”或“在其他部件或构造之下”的情况。因而,示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。此外,这些部件或特征也可以其他不同角度来定位(例如旋转90度或其他角度),本文意在包含所有这些情况。For the convenience of description, relative terms of area may be used here, such as "on", "above", "on the surface of", "above", etc., to describe what is shown in the drawings The areal positional relationship of one or more parts or features to other parts or features. It will be understood that relative terms of area encompass not only the orientation of components as depicted in the figures, but also different orientations in use or operation. For example, if an element in a drawing is shown entirely upside down, references to elements "above" or "over" other elements or features would include elements "beneath" the other element or feature or "above the other element or feature". under construction". Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". In addition, these components or features may be positioned at other different angles (eg, rotated 90 degrees or other angles), all such situations are intended to be encompassed herein.

需要注意的是,这里所使用的术语仅是为了描述具体实施方式,而非意图限制根据本申请的示例性实施方式。如在这里所使用的,除非上下文另外明确指出,否则单数形式也意图包括复数形式,此外,还应当理解的是,当在本说明书中使用术语“包含”和/或“包括”时,其指明存在特征、步骤、操作、部件、组件和/或它们的组合。It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, components, components and/or combinations thereof.

需要说明的是,本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施方式能够以除了在这里图示或描述的那些以外的顺序实施。It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein.

本发明已经通过上述实施例进行了说明,但应当理解的是,上述实施例只是用于举例和说明的目的,而非意在将本发明限制于所描述的实施例范围内。此外本领域技术人员可以理解的是,本发明并不局限于上述实施例,根据本发明的教导还可以做出更多种的变型和修改,这些变型和修改均落在本发明所要求保护的范围以内。本发明的保护范围由附属的权利要求书及其等效范围所界定。The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of illustration and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, those skilled in the art can understand that the present invention is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the claimed scope of the present invention. within the range. The protection scope of the present invention is defined by the appended claims and their equivalent scope.

Claims (21)

1. A photoacoustic endoscope comprising a light guiding portion, an operating portion and an insertion portion, the operating portion being connected between the light guiding portion and the insertion portion, a distal end of the insertion portion being provided with a head end portion, an optical fiber bundle extending from the light guiding portion to the head end portion via the operating portion for conducting photoacoustic excitation light, characterized in that the optical fiber bundle comprises a trunk section, a first branch section and a second branch section, the photoacoustic endoscope further comprising a joint assembly comprising a trunk joint, a first branch joint and a second branch joint which are connected to the trunk joint independently and detachably from each other, a proximal end of the trunk section being optically coupled to a light guiding interface on the light guiding portion, a distal end of the trunk section being connected to the trunk joint, a proximal end of the first branch section being connected to the first branch joint, a proximal end of the second branch section being connected to the second branch joint, the distal ends of the first and second branch sections being both fixed to the head end portion,
5. The photoacoustic endoscope of claim 4 wherein the stopper comprises a first fixed stopper and a second fixed stopper disposed opposite to each other in a predetermined direction on an inner side wall of the optical fiber channel, the predetermined direction being perpendicular to an extending direction of the optical fiber bundle, the first fixed stopper being located at a side where the first joint portion is located, the second fixed stopper being located at a side where the second joint portion is located, a predetermined distance being provided between the first fixed stopper and the second fixed stopper, the predetermined distance being greater than a dimension of the first joint portion in the predetermined direction and greater than a dimension of the second joint portion in the predetermined direction.
CN202211736385.9A2022-12-302022-12-30Photoacoustic endoscope and endoscope systemPendingCN115998218A (en)

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