CN115531689A - A front end assembly of a ureteral sheath, a ureteral sheath and a device for inserting into the ureter - Google Patents
A front end assembly of a ureteral sheath, a ureteral sheath and a device for inserting into the ureterDownload PDFInfo
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Abstract
Description
Translated fromChinese技术领域technical field
本发明涉及医疗器械技术领域，尤其涉及一种输尿管鞘的前端组件、输尿管鞘及插入输尿管的设备。The invention relates to the technical field of medical devices, in particular to a front-end assembly of a ureteral sheath, a ureteral sheath and a device for inserting into the ureter.
背景技术Background technique
输尿管鞘用于泌尿外科手术中，临床上泌尿外科手术操作前必须在输尿管内置入输尿管鞘，输尿管软镜进入输尿管鞘内到达输尿管上段或者肾盂进行手术操作，操作时通过输尿管软镜持续向手术视野内灌注液体，同时手术视野内的液体不断的通过输尿管鞘排出到体外，保持操作术野清晰。The ureteral sheath is used in urological surgery. Before clinical urological surgery, a ureteral sheath must be inserted into the ureter. The flexible ureteroscope enters the ureteric sheath to reach the upper segment of the ureter or the renal pelvis for surgical operations. The fluid is perfused inside, and the fluid in the surgical field of view is continuously discharged out of the body through the ureteric sheath to keep the operating field clear.
相关技术中的输尿管鞘，通常需要使用扩张器辅助进入到人体内，由于扩张器采用硬质材料制成，插入过程中容易造成机体受损；并且，由于扩张器需要插入或拉出，现有的密封阀与扩张器安装位置存在干涉，导致必须在卸除扩张器后由医生安装密封阀，然后插入内窥镜，且内窥镜与密封阀面面接触，容易造成内窥镜插入困难，医生操作复杂费力。The ureteral sheath in the related art usually needs to use a dilator to assist in entering the human body. Since the dilator is made of hard material, it is easy to cause damage to the body during insertion; and, because the dilator needs to be inserted or pulled out, the existing There is interference between the sealing valve and the installation position of the dilator, so the doctor must install the sealing valve after the dilator is removed, and then insert the endoscope, and the surface of the endoscope is in contact with the sealing valve, which may easily cause difficulty in inserting the endoscope. The doctor's operation is complicated and laborious.
发明内容Contents of the invention
基于此，有必要针对上述技术问题，提供一种输尿管鞘的前端组件、输尿管鞘及插入输尿管的设备。Based on this, it is necessary to provide a front end assembly of a ureteral sheath, a ureteral sheath, and a device for inserting into the ureter to address the above technical problems.
为了解决上述问题，本发明采用下述技术方案：In order to solve the above problems, the present invention adopts the following technical solutions:
第一方面，本申请实施例提供了一种输尿管鞘的前端组件，所公开的输尿管鞘的前端组件包括可膨胀段，所述可膨胀段设有第二内腔以及与所述第二内腔连通的吸引口，所述可膨胀段具有收缩状态和扩张状态，所述可膨胀段可在所述收缩状态和所述扩张状态之间进行切换，在所述可膨胀段处于收缩状态的情况下，所述第二内腔的开口尺寸在第一方向上逐渐减小，所述第一方向为所述可膨胀段由近端向远端的延伸方向。In the first aspect, the embodiment of the present application provides a front-end assembly of a ureteral sheath. The disclosed front-end assembly of the ureteral sheath includes an expandable section, and the expandable section is provided with a second lumen and is connected to the second lumen. a communicating suction port, the expandable segment has a contracted state and an expanded state, the expandable segment is switchable between the contracted state and the expanded state, when the expandable segment is in the contracted state , the size of the opening of the second lumen decreases gradually in a first direction, and the first direction is the extending direction of the expandable section from the proximal end to the distal end.
进一步地，所述可膨胀段包括固定部和可扩张壁，所述可扩张壁与所述固定部相连、并在二者之间限定出所述第二内腔。Further, the expandable section includes a fixed portion and an expandable wall, the expandable wall is connected to the fixed portion and defines the second lumen therebetween.
进一步地，所述可扩张壁为弧形结构，所述可扩张壁为气囊、记忆合金构件和取石网篮中的一者。Further, the expandable wall is an arc-shaped structure, and the expandable wall is one of a balloon, a memory alloy member, and a stone extraction basket.
进一步地，所述输尿管鞘的前端组件还包括摄像组件和发光组件，所述摄像组件和所述发光组件设于所述固定部。Further, the front end assembly of the ureteral sheath further includes a camera assembly and a light emitting assembly, and the camera assembly and the light emitting assembly are arranged at the fixing part.
进一步地，所述输尿管鞘的前端组件还包括测温探头和/或测压探头，所述测温探头和/或所述测压探头设于所述固定部。Further, the front end assembly of the ureteral sheath further includes a temperature measuring probe and/or a pressure measuring probe, and the temperature measuring probe and/or the pressure measuring probe are arranged at the fixing part.
进一步地，在所述可膨胀段处于扩张状态的情况下，所述第二内腔的开口尺寸在第一方向上逐渐增大。Further, when the expandable section is in an expanded state, the opening size of the second lumen gradually increases in the first direction.
进一步地，在所述第一方向上，所述固定部的外周壁向所述可膨胀段的轴向倾斜。Further, in the first direction, the outer peripheral wall of the fixing part is inclined toward the axial direction of the expandable section.
第二方面，本申请实施例还提供了一种输尿管鞘，输尿管鞘包括管鞘本体和前述的前端组件，所述前端组件设于所述管鞘本体的远端，管鞘本体设有与所述第二内腔相连通的第一内腔。In the second aspect, the embodiment of the present application also provides a ureteral sheath. The ureteral sheath includes a sheath body and the aforementioned front-end assembly. The front-end assembly is arranged at the distal end of the sheath body. The sheath body is provided with the The first lumen communicated with the second lumen.
进一步地，所述管鞘本体内设置有延其轴向延伸的分隔壁，所述分隔壁将所述第一内腔分隔为注液通道和吸引通道，所述固定部的远端设置有与所述注液通道相连通的注液口，所述吸引通道与所述第二内腔相连通。Further, the sheath body is provided with a partition wall extending along its axial direction, the partition wall divides the first lumen into an injection channel and a suction channel, and the distal end of the fixing part is provided with a The liquid injection channel communicates with the liquid injection port, and the suction channel communicates with the second inner chamber.
第三方面，本申请实施例还提供了一种插入输尿管的设备，包括手柄和前述的输尿管鞘，所述管鞘本体的近端连接所述手柄。In a third aspect, the embodiment of the present application also provides a device for inserting into a ureter, including a handle and the aforementioned ureteral sheath, and the proximal end of the sheath body is connected to the handle.
本发明采用的技术方案能够达到以下有益效果：The technical scheme adopted in the present invention can achieve the following beneficial effects:
第一、输尿管鞘的前端设置可收缩或扩张的膨胀段，在可膨胀段处于收缩状态时，输尿管鞘能够在无扩张器辅助的情况下插入输尿管，收缩状态的可膨胀段在径向方向的空间占用较小，能够避免机体受损，插入人体后可将可膨胀段切换至扩张状态，使吸引口的口径扩大而易于将碎石块、血凝块和脓性絮状物从输尿管鞘排出；First, the front end of the ureteral sheath is provided with a shrinkable or expandable expansion section. When the expandable section is in a contracted state, the ureteral sheath can be inserted into the ureter without the assistance of a dilator. It takes up less space and can avoid damage to the body. After being inserted into the human body, the expandable section can be switched to the expanded state, so that the caliber of the suction port can be enlarged and it is easy to discharge broken stones, blood clots and purulent flocs from the ureteral sheath ;
第二、基于摄像组件和发光组件的存在，输尿管鞘兼具了肾镜的功能，免除了在输尿管鞘插入肾镜的方式；与此同时，相较于传统的在肾镜设置吸引通道的方式，输尿管鞘的吸引通道的径向尺寸得到了扩展，结石碎片、血凝块和脓性絮状物的通行能力得到提升，输尿管鞘不易堵塞；Second, based on the existence of camera components and light-emitting components, the ureteral sheath has the function of a nephroscope, eliminating the need to insert the nephroscope into the ureteral sheath; at the same time, compared with the traditional way of setting a suction channel in the nephroscope , The radial dimension of the suction channel of the ureteral sheath has been expanded, the passage capacity of stone fragments, blood clots and purulent flocs has been improved, and the ureteral sheath is not easy to block;
第三、测温探头能够监测肾盂内温度，为医护人员提供参考信息，避免肾盂内温度过高而造成机体损伤；测压探头能够实时监测肾盂内压力，方便医护人员准确判断并控制手术时间，避免肾盂内压力增高时间过长引发尿源性脓毒血症。Third, the temperature measuring probe can monitor the temperature in the renal pelvis and provide reference information for medical staff to avoid body damage caused by excessive temperature in the renal pelvis; the pressure measuring probe can monitor the pressure in the renal pelvis in real time, which is convenient for medical staff to accurately judge and control the operation time. Avoid excessive pressure in the renal pelvis causing urogenous sepsis.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1是本申请实施例的可膨胀段在扩张状态的结构示意图；Figure 1 is a schematic structural view of the expandable section of the embodiment of the present application in an expanded state;
图2是本申请实施例的可膨胀段在收缩状态的结构示意图；Fig. 2 is a schematic structural view of the expandable section of the embodiment of the present application in a contracted state;
图3是本申请实施例的管鞘本体的结构示意图；3 is a schematic structural view of the sheath body of the embodiment of the present application;
图4是本申请实施例的输尿管鞘的结构示意图；Fig. 4 is a schematic structural view of the ureteral sheath of the embodiment of the present application;
图5是图4中A处的局部放大示意图；Fig. 5 is a partially enlarged schematic diagram of place A in Fig. 4;
图6是本申请实施例的插入输尿管的设备的结构示意图。Fig. 6 is a schematic structural diagram of a device for inserting into a ureter according to an embodiment of the present application.
图中：In the picture:
100-管鞘本体，110-第一内腔，111-注液通道，112-吸引通道，120-分隔壁；200-可膨胀段，210-固定部，220-可扩张壁，230-第二内腔，240-吸引口，250-注液口；310-摄像组件，320-发光组件，330-温感探头，340-测压探头；400-手柄。100-sheath body, 110-first lumen, 111-infusion channel, 112-suction channel, 120-dividing wall; 200-expandable section, 210-fixing part, 220-expandable wall, 230-second Inner cavity, 240-suction port, 250-liquid injection port; 310-camera component, 320-light emitting component, 330-temperature sensing probe, 340-pressure measuring probe; 400-handle.
具体实施方式detailed description
为使本发明的目的、技术方案和优点更加清楚，下面将对本发明的技术方案进行详细的描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所得到的所有其它实施方式，都属于本发明所保护的范围。In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不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，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.
在本发明中，“近端”和“远端”是本结构在使用环境下，相对于人体操作的远近位置，以方便对部件之间的位置关系进行描述，同时方便理解；“近端”和“远端”是相对而言的位置关系，而非绝对的。In the present invention, "proximal end" and "distal end" refer to the far and near positions of the structure relative to the operation of the human body in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; "proximal end" The position relationship with "far end" is relative, not absolute.
下面结合附图1～图6，通过具体的实施例及其应用场景对本申请实施例提供的输尿管鞘的前端组件、输尿管鞘及插入输尿管的设备进行详细地说明。The front end assembly of the ureter sheath, the ureter sheath and the device for inserting into the ureter provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings 1 to 6 through specific embodiments and application scenarios.
参照图1～图6，本申请实施例公开了一种输尿管鞘的前端组件，输尿管鞘的前端组件包括可膨胀段200，可膨胀段200设置有沿其轴向贯通的第二内腔230，第二内腔230在可膨胀段200的前端面形成吸引口240，在将输尿管鞘的前端组件置于人体肾盂内时，肾盂内的血凝块、细小石块和脓状絮状物等可经吸引口240进入到第二内腔230内。1 to 6, the embodiment of the present application discloses a front-end assembly of a ureteral sheath, the front-end assembly of the ureteral sheath includes an
在本申请实施例中，参照图1和图2，可膨胀段200具有收缩状态和扩张状态，在可膨胀段200处于收缩状态的情况下，第二内腔230的开口尺寸在第一方向上逐渐减小，第一方向为可膨胀段由近端向远端的延伸方向，也就是说，在收缩状态下，相较于可膨胀段200的近端，吸引口240的开口尺寸较小，甚至处于闭合状态，可膨胀段200的远端在其径向方向上具有较小的空间占用；在可膨胀段200处于扩张状态的情况下，吸引口240的开口尺寸大于其在收缩状态下的开口尺寸。In the embodiment of the present application, referring to FIG. 1 and FIG. 2 , the
本申请实施例的输尿管鞘的前端组件，在可膨胀段200处于收缩状态的情况下，可膨胀段200的前端在其径向方向上的轮廓尺寸较小，在插入人体输尿管时能够避免基体受损，也有利于可膨胀段200插入肾盂深处；在插入肾盂至适宜位置后，可操作可膨胀段200切换至扩张状态，此时，吸引口240具有较大的开口尺寸，有利于肾盂内的血凝块、细小石块和脓状絮状物等可经扩张后的吸引口240进入第二内腔内，并经输尿管鞘排出。In the front end assembly of the ureteral sheath of the embodiment of the present application, when the
在本实施例中，请参照图1～图2、图4～图5，可膨胀段200包括固定部210和可扩张壁220，其中，固定部210为可膨胀段200的基础构件，其具有一定的刚性，能够形成稳定支撑以设置可扩张壁220，同时也能使可膨胀段200具有一定的刚性，避免可膨胀段200发生随意的弯曲变形，可扩张壁220与固定部210连接，并在二者之间限定出前述的第二内腔230和吸引口240。In this embodiment, referring to FIGS. 1-2 and 4-5, the
在本申请实施例中，可扩张壁220为弧形结构，可扩张壁220的周向方向的两端分别与固定部210连接，在可膨胀段200处于收缩状态的情况下，可扩张壁220贴于固定部210，在可膨胀段200处于扩张状态的情况下，可扩张壁220与固定部210分离并形成前述的吸引口240。In the embodiment of the present application, the
一种可选的实施方式中，可扩张壁220可以为气囊，在气囊未充气的情况下，气囊处于干瘪状态并与固定部210相贴合，此时的可膨胀段200处于收缩状态，在将可膨胀段200置于肾盂内后，向气囊内充气使气囊处于充盈状变形而与固定部210分离，从而使吸引口240扩张。In an optional embodiment, the
在另一种可选的实施方式中，可扩张壁220可以为记忆合金构件，记忆合金构件具有形状记忆效应，其具有一个重要性质是超弹性，表现为记忆合金构件的超弹性会在一定温度下触发，该触发温度受合金的元素成分，以及其比例所决定，因此为实现需要的超弹性可以通过合适的合金成分配比而实现；在本实施方式中，可以设置与可扩张壁220电连接的电导丝，在插入人体输尿管前，记忆合金构件贴于固定部210，在可膨胀段200插入人体输尿管后，可向电导丝通电使记忆合金构件达到预设触发温度，记忆合金构件发生变形而恢复至扩张状态。In another optional embodiment, the
在另一种可选的实施方式中，可扩张壁220可以为网状的取石网篮，取石网篮包括多个柔性细丝，通过施加作用力能够使得其发生膨胀或塌陷，在其发生塌陷时，可膨胀段200处于收缩状态，在其发生膨胀时，可膨胀段200处于扩张状态。在本实施方式中，取石网篮可以为塑料、纺织纤维、合成纤维和天然纤维中的至少一者构造而成，需要说明的是，在本实施方式中，可以设置与取石网篮连接的牵引绳，通过牵引绳牵引取石网篮，使取石网篮膨胀或塌陷。In another optional embodiment, the
在本申请实施例中，输尿管鞘的前端组件还可以包括摄像组件310和发光组件320，摄像组件310和发光组件320设于固定部210的远端壁，发光组件320能够摄像组件310提供光照，优化摄像组件310的拍摄环境；一方面，在可膨胀段200插入人体输尿管的过程中，通过摄像组件310的介入，使得插入过程可视化，可高效地将输尿管鞘置入肾盂，甚至达到肾盏处，同时避免了输尿管鞘造成肾盂损伤；另一方面，在插入输尿管鞘后，无需再在输尿管鞘内插入肾镜，可直接通过摄像组件310观察肾盂，提升了手术作业的便捷性，降低了手术成本。In the embodiment of the present application, the front end assembly of the ureteral sheath may further include a
发明人在研究过程中发现，相关技术中的吸引通道通常设于肾镜，使用时将肾镜插入输尿管鞘内，输尿管鞘的径向尺寸受到人体输尿管限制，而肾镜的径向尺寸则受到输尿管鞘的限制，如此，导致肾镜的吸引通道的径向尺寸较小，对结石碎片的排出能力较弱；而本实施例的输尿管鞘，兼具了肾镜功能，因此，相较于肾镜，吸引通道的径向尺寸得到了扩展，使得吸引通道对结石碎片的排出能力显著增强，不易堵塞。The inventor found during the research process that the suction channel in the related art is usually set in the nephroscope, and the nephroscope is inserted into the ureteric sheath during use. The radial size of the ureteral sheath is limited by the human ureter, while the radial size of the nephroscope is limited The restriction of the ureteral sheath, so that the radial size of the suction channel of the nephroscope is smaller, and the ability to discharge stone fragments is weaker; and the ureteral sheath of this embodiment has the function of the nephroscope, so compared with the renal The radial size of the suction channel has been expanded, so that the discharge capacity of the suction channel for stone fragments is significantly enhanced, and it is not easy to be blocked.
在进一步的技术方案中，输尿管鞘的前端组件还包括测温探头330，测温探头330设于固定部210，可选的设于固定部210的前端壁，测温探头330可用于测量肾盂内温度；激光虽然为冷光，但是在激光碎石过程中，因为其具有高能量，会有热的产生，因此，长时间的激光碎石会导致肾盂内温度升高，而本实施例的测温探头330可以监测肾盂内温度，能够为医护人员提供参考信息，避免肾盂内温度过高而造成机体损伤。In a further technical solution, the front-end assembly of the ureteral sheath also includes a temperature-measuring
在进一步的技术方案中，输尿管鞘的前端组件还包括测压探头340，测压探头340设于固定部210，可选的设于固定部210的前端壁，测压探头340可用于测量肾盂内压力，通过实时检测肾盂深处的压力，方便医护人员准确判断并控制手术时间，避免肾盂内压力增高时间过长引发尿源性脓毒血症。In a further technical solution, the front-end assembly of the ureteral sheath also includes a pressure-measuring
由前述可知，在可膨胀段处于扩张状态的情况下，吸引口240的开口尺寸相较于收缩状态时较大，在本申请实施例中，在可膨胀段处于扩张状态的情况下，第二内腔230的开口尺寸第一方向上逐渐增大；也就是说，吸引口240的口径大于可膨胀段200的近端的口径，如此，在可膨胀段200插入肾盂后，开口尺寸较大的吸引口240能将有利于将肾盂内的碎石块、血凝块和脓性絮状物吸入到第二内腔230。It can be seen from the foregoing that when the expandable section is in the expanded state, the opening size of the
在进一步的技术方案中，在第一方向上，固定部210的外周壁向可膨胀段200的轴向倾斜；如此设置下，固定部210在第一方向上呈锥形结构，能够进一步较小可膨胀段200的远端在径向方向上的空间占用，从而避免对机体造成损伤，易于插入。In a further technical solution, in the first direction, the outer peripheral wall of the fixing
本申请实施例还公开了一种输尿管鞘，参照图4和图5，所公开的输尿管鞘包括管鞘本体100和前述的输尿管鞘的前端组件，前端组件设于管鞘本体100的远端，管鞘本体100设有与第二内腔230相连通的第一内腔110，第一内腔110和第二内腔230连通，如此设置下，肾盂内的碎石块、血凝块和脓性絮状物等可顺次经吸引口240、第二内腔230和第一内腔110排出。The embodiment of the present application also discloses a ureteral sheath. Referring to FIG. 4 and FIG. 5 , the disclosed ureteral sheath includes a
在前述实施方式中，第一内腔110可以为一个单独的腔结构，其与第二内腔相连通共同组成了输尿管鞘的吸引通道。在进一步的技术方案中，所述第一内腔110可以包括两个相对独立的腔结构，具体地，请参见图3，管鞘本体100内设置有延其轴向延伸的分隔壁120，分隔壁120将第一内腔110分隔为注液通道111和吸引通道112，注液通道111与吸引通道112相对独立，固定部210的远端设置有与注液通道111相连通的注液口250，吸引通道112与第二内腔230相连通，注液通道111用于向肾盂内注入药液或生理盐水，吸引通道112用于排出肾盂内的碎石块、血凝块和脓性絮状物等；如此设置下，输尿管鞘的注液口250和吸引口240在肾盂内处于相接近的位置，从而在管鞘本体100的远端形成了良好的水循环，既能使观察视野清晰，又能避免加大灌注量而产生的感染风险。In the foregoing embodiments, the
需要说明的是，在本申请实施例中，输尿管鞘除前述的注液通道111和吸引通道112之外，还可以设置线缆通道(图中未示)，线缆通道可供连接摄像组件310、发光组件320、测温探头330和测压探头340的线缆穿过。It should be noted that, in the embodiment of the present application, in addition to the
在本申请实施例中，可膨胀段200可以一体成型在管鞘本体100的远端而形成输尿管鞘，也可以采用卡扣连接、螺纹连接等方式装配于管鞘本体100的远端而形成输尿管鞘，本申请实施例并不限定；另外，在本申请实施例中，管鞘本体100具有柔性，能够在插入人体输尿管的过程中发生适应性弯曲，例如为橡胶材料、聚氨酯等制成管状结构件，或者是，管鞘本体100为包覆有外覆层的螺旋形金属管件，其能够发生挠性变形，外覆层可以为热缩管。In the embodiment of the present application, the
参照图6，本申请实施例还公开了一种插入输尿管的设备，所公开的插入输尿管的设备包括手柄和前述的输尿管鞘，输尿管鞘的近端连接手柄400。Referring to FIG. 6 , the embodiment of the present application also discloses a device for inserting into the ureter. The disclosed device for inserting into the ureter includes a handle and the aforementioned ureteral sheath, and the proximal end of the ureteral sheath is connected to the
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。It should be noted that, in this document, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211055687.XACN115531689A (en) | 2022-08-31 | 2022-08-31 | A front end assembly of a ureteral sheath, a ureteral sheath and a device for inserting into the ureter |
| PCT/CN2023/096798WO2024045714A1 (en) | 2022-08-31 | 2023-05-29 | Front-end assembly of ureteral sheath, ureteral sheath, and device inserted into ureter |
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| CN202211055687.XACN115531689A (en) | 2022-08-31 | 2022-08-31 | A front end assembly of a ureteral sheath, a ureteral sheath and a device for inserting into the ureter |
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