技术领域technical field
本实用新型属于神经外科手术医疗器械技术领域，具体涉及一种手术用牵开装置。The utility model belongs to the technical field of neurosurgical medical instruments, in particular to a retractor for surgery.
背景技术Background technique
临床上对一些高压颅内出血或脑肿瘤患者进行手术时，为了到达出血或者肿瘤所在部位，需要对患者脑组织进行牵开操作，到达目标区域并建立工作通道。传统手术方式是切开大脑皮层，取掉一部分脑组织，用材质坚硬的脑压板进行牵开操作。这种操作方式第一，取掉一部分脑组织对大脑损伤很高；第二，由于脑组织柔软精细，脑压板的操作方式导致开应力集中，对受压部位的神经传导束有切割作用，增加了对患者脑组织造成的损伤；第三，用脑压板成功建立手术通道后，由于脑组织的潜变特性，手术窗口可能发生改变影响医生操作。Clinically, when performing surgery on some patients with high-pressure intracranial hemorrhage or brain tumors, in order to reach the site of the hemorrhage or tumor, it is necessary to retract the patient's brain tissue to reach the target area and establish a working channel. The traditional surgical method is to incise the cerebral cortex, remove a part of the brain tissue, and use a hard brain compression plate to perform the retraction operation. This method of operation firstly removes a part of the brain tissue, causing high damage to the brain; secondly, because the brain tissue is soft and delicate, the operation method of the brain pressure plate leads to stress concentration, which has a cutting effect on the nerve conduction bundle of the compressed part, increasing the Third, after the surgical channel is successfully established with the brain compression plate, due to the creep characteristics of the brain tissue, the surgical window may change and affect the doctor's operation.
背景技术部分的内容仅仅是实用新型人所知晓的技术，并不当然代表本领域的现有技术。The content of the background technology part is only the technology known to the inventor, and does not necessarily represent the prior art in this field.
实用新型内容Utility model content
针对现有技术存在问题中的一个或多个，本实用新型提供一种手术用牵开穿刺装置，包括：Aiming at one or more of the existing problems in the prior art, the utility model provides a retraction and puncture device for surgery, including:
牵开器，包括主体、操作端和侵入端；a retractor comprising a main body, an operating end and an intruding end;
鞘管，所述鞘管套在牵开器主体外部，与牵开器配合，所述牵开器的操作端和侵入端暴露于鞘管的外部；a sheath tube, the sheath tube is sheathed outside the main body of the retractor, and cooperates with the retractor, and the operation end and the invasion end of the retractor are exposed to the outside of the sheath tube;
所述牵开器与鞘管可沿轴向移动。The retractor and sheath are axially movable.
根据本实用新型的一个方面的优选方案，所述牵开器的主体横截面为圆形，所述侵入端为平滑的圆锥形。According to a preferred solution of one aspect of the present utility model, the main body of the retractor has a circular cross-section, and the intruding end is a smooth conical shape.
根据本实用新型的一个方面的优选方案，所述牵开器主体与侵入端一体成型。According to a preferred solution of one aspect of the present utility model, the main body of the retractor and the intruding end are integrally formed.
根据本实用新型的一个方面的优选方案，所述牵开器的侵入端长0.8-1.5cm。According to a preferred solution of one aspect of the present utility model, the length of the invasive end of the retractor is 0.8-1.5 cm.
根据本实用新型的一个方面的优选方案所述牵开器主体采用镂空结构。优选地，所述镂空结构占牵开器主体部分的5％-40％。According to a preferred solution of one aspect of the present utility model, the main body of the retractor adopts a hollow structure. Preferably, the hollow structure accounts for 5%-40% of the main body of the retractor.
根据本实用新型的一个方面的优选方案，所述鞘管包括侵入端、尾段和操作端，所述尾段靠近所述操作端，所述操作端设置于所述尾段的边沿。According to a preferred solution of one aspect of the present invention, the sheath includes an invasion end, a tail section and an operation end, the tail section is close to the operation end, and the operation end is arranged on the edge of the tail section.
根据本实用新型的一个方面的优选方案，所述鞘管与牵开器之间的配合方式是：从牵开器的操作端沿牵开器的主体至牵开器侵入端呈由间隙配合到过盈配合的渐变过程。According to a preferred solution of one aspect of the present utility model, the cooperation between the sheath tube and the retractor is as follows: from the operating end of the retractor along the main body of the retractor to the invading end of the retractor, a gap fit to Gradient process of interference fit.
根据本实用新型的一个方面的优选方案，所述牵开器侵入端从鞘管侵入端的开口穿出并堵住鞘管侵入端的开口。According to a preferred solution of one aspect of the present invention, the intrusion end of the retractor passes through the opening of the intrusion end of the sheath and blocks the opening of the intrusion end of the sheath.
根据本实用新型的一个方面的优选方案，所述鞘管侵入端的外表面逐渐呈锥面，牵开器侵入端的锥状外表面与鞘管侵入端的锥状外表面形成平滑过渡。According to a preferred solution of one aspect of the present invention, the outer surface of the intruding end of the sheath gradually becomes a tapered surface, and the tapered outer surface of the intruding end of the retractor forms a smooth transition with the tapered outer surface of the intruding end of the sheath.
根据本实用新型的一个方面的优选方案，所述鞘管尾段的内径逐渐向外敞开，优选地，所述鞘管尾段呈喇叭口状。According to a preferred solution of one aspect of the present invention, the inner diameter of the tail section of the sheath tube is gradually opened outwards, preferably, the tail section of the sheath tube is in the shape of a bell mouth.
根据本实用新型的一个方面的优选方案，所述鞘管与所述牵开器采用锁定部件形成可拆卸连接，所述锁定部件用于将所述鞘管固定于所述牵开器主体外。According to a preferred solution of one aspect of the present invention, the sheath tube and the retractor are detachably connected by a locking component, and the locking component is used to fix the sheath tube outside the main body of the retractor.
根据本实用新型的一个方面的优选方案，所述锁定部件包括凸起结构和限位结构，所述凸起结构用于固定鞘管侵入端，所述限位结构用于限定鞘管操作端。According to a preferred solution of one aspect of the present utility model, the locking component includes a protruding structure and a limiting structure, the protruding structure is used to fix the intruding end of the sheath, and the limiting structure is used to limit the operating end of the sheath.
根据本实用新型的一个方面的优选方案，所述限位结构为设置于牵开器主体和牵开器操作端之间的加强筋，在所述加强筋上设置有与鞘管操作端配合的结构，用于在手术操作时限制鞘管沿轴向向牵开器操作端移动。According to a preferred solution of one aspect of the present utility model, the position-limiting structure is a reinforcing rib arranged between the main body of the retractor and the operating end of the retractor; The structure is used to limit the axial movement of the sheath towards the operating end of the retractor during operation.
根据本实用新型的一个方面的优选方案，所述凸起结构设置于所述牵开器主体上接近牵开器侵入端的位置，与所述鞘管侵入端内表面紧配合。According to a preferred solution of one aspect of the present invention, the protruding structure is arranged on the main body of the retractor at a position close to the intrusion end of the retractor, and tightly fits with the inner surface of the intrusion end of the sheath.
根据本实用新型的一个方面的优选方案，所述牵开器设有引导孔和锁紧装置，所述引导孔用于插入引导装置，所述锁紧装置用于固定所插入的引导装置。According to a preferred solution of one aspect of the present utility model, the retractor is provided with a guiding hole and a locking device, the guiding hole is used for inserting the guiding device, and the locking device is used for fixing the inserted guiding device.
根据本实用新型的一个方面的优选方案，所述引导孔由牵开器操作端延伸至牵开器侵入端内部。According to a preferred solution of one aspect of the present utility model, the guide hole extends from the operating end of the retractor to the inside of the intrusive end of the retractor.
根据本实用新型的一个方面的优选方案，所述锁紧装置设置于牵开器操作端上。According to a preferred solution of one aspect of the present utility model, the locking device is arranged on the operating end of the retractor.
根据本实用新型的一个方面的优选方案，所述锁紧装置包括沿导引孔径向深入至引导孔的螺栓和与螺栓配合的螺丝。According to a preferred solution of one aspect of the present invention, the locking device includes a bolt that goes deep into the guide hole along the radial direction of the guide hole and a screw that cooperates with the bolt.
根据本实用新型的一个方面的优选方案，所述牵开器和/或鞘管表面设有刻度。According to a preferred solution of one aspect of the present utility model, the surface of the retractor and/or the sheath is provided with scales.
根据本实用新型的一个方面的优选方案，所述鞘管是透明的和内面磨砂的两种。According to a preferred solution of one aspect of the present utility model, the sheath is transparent and frosted on the inner surface.
根据本实用新型的一个方面的优选方案，所述牵开器选自生物相容性材料制成；所述鞘管选自生物相容性材料制成。所述牵开器和/或鞘管所用生物相容性材料均符合医用要求。According to a preferred solution of one aspect of the present invention, the retractor is made of biocompatible materials; the sheath is made of biocompatible materials. The biocompatible materials used in the retractor and/or the sheath all meet medical requirements.
所述的手术用牵开穿刺装置在脑部手术中的应用。The application of the retraction and puncture device for operation in brain surgery.
附图说明Description of drawings
附图用来提供对本实用新型的进一步理解，并且构成说明书的一部分，与本实用新型的实施例一起用于解释本实用新型，并不构成对本实用新型的限制。在附图中：The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:
图1A是本实用新型的脑部手术用脑组织牵开穿刺装置的一实施例的纵剖斜视图；Fig. 1A is a longitudinal sectional oblique view of an embodiment of the brain tissue retraction and puncture device for brain surgery of the present invention;
图1B是本实用新型的脑部手术用脑组织牵开穿刺装置的一实施例的斜视图；Fig. 1B is an oblique view of an embodiment of the brain tissue retraction and puncture device for brain surgery of the present invention;
图2A-2D是图1A中牵开器10的结构示意图，其中，图2B是正视图，图2D是图2B的左视图，图2A和图2C是立体图；2A-2D are schematic structural views of the retractor 10 in FIG. 1A, wherein FIG. 2B is a front view, FIG. 2D is a left side view of FIG. 2B, and FIG. 2A and FIG. 2C are perspective views;
图3A-3D是图1A中鞘管20的结构示意图，其中，图3B是正视图，图3D是图3B的左视图，图3A是立体图，图3C是轴向剖面图；3A-3D are schematic structural views of the sheath 20 in FIG. 1A, wherein FIG. 3B is a front view, FIG. 3D is a left view of FIG. 3B, FIG. 3A is a perspective view, and FIG. 3C is an axial sectional view;
图中标记说明：10--牵开器、11--牵开器侵入端、18--牵开器主体，12--镂空结构、13--牵开器操作端、14--牵开器刻度、15--操作端开孔、16--凸起结构、17--限位结构、20--鞘管、21--鞘管侵入端、22--鞘管尾段、23--鞘管操作端、24--鞘管刻度、25--鞘管通孔、30--锁紧装置。Explanation of marks in the figure: 10--retractor, 11--invasive end of retractor, 18--main body of retractor, 12--hollow structure, 13--operating end of retractor, 14--retractor Scale, 15--operation end opening, 16--protruding structure, 17--limiting structure, 20--sheath tube, 21--sheath tube invasion end, 22--sheath tube tail section, 23--sheath Tube operating end, 24--sheath tube scale, 25--sheath tube through hole, 30--locking device.
具体实施方式Detailed ways
在下文中，仅简单地描述了某些示例性实施例。正如本领域技术人员可认识到的那样，在不脱离本实用新型的精神或范围的情况下，可通过各种不同方式修改所描述的实施例。因此，附图和描述被认为本质上是示例性的而非限制性的。In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.
在本实用新型的描述中，需要理解的是，术语"中心"、"纵向"、"横向"、"长度"、"宽度"、"厚度"、"上"、"下"、"前"、"后"、"左"、"右"、"坚直"、"水平"、"顶"、"底"、"内"、"外"、"顺时针"、"逆时针"等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。此外，术语"第一"、"第二"仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有"第一"、"第二"的特征可以明示或者隐含地包括一个或者更多个所述特征。在本实用新型的描述中，"多个"的含义是两个或两个以上，除非另有明确具体的限定。In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Directions indicated by "back", "left", "right", "straight", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语"安装"、"相连"、"连接"应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接:可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection: it can be mechanical connection, electrical connection or mutual communication; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the mutual communication of two components role relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.
在本实用新型中，除非另有明确的规定和限定，第一特征在第二特征之"上"或之"下"可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征"之上"、"上方"和"上面"包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征"之下"、"下方"和"下面"包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, and may also include the first and second features. The features are not in direct contact but through another feature between them. Moreover, "on", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature. "Below", "below" and "under" the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature has a lower horizontal height than the second feature.
下文的公开提供了许多不同的实施方式或例子用来实现本实用新型的不同结构。为了简化本实用新型的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本实用新型。此外，本实用新型可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本实用新型提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。The disclosure below provides many different implementations or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.
以下结合附图对本实用新型的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本实用新型，并不用于限定本实用新型。The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.
本实施例展示了一种手术用牵开穿刺装置，用于脑手术。如图1A、图1B所示，本实施例所述手术用牵开穿刺装置包括牵开器10，鞘管20。所述牵开器10嵌套于所述鞘管20内，所述牵开器10与鞘管20可沿轴向移动。This embodiment shows a surgical retractor puncture device for brain surgery. As shown in FIG. 1A and FIG. 1B , the surgical retractor puncture device of this embodiment includes a retractor 10 and a sheath 20 . The retractor 10 is nested in the sheath 20, and the retractor 10 and the sheath 20 can move axially.
如图2A、图2B、图2C、图2D所示，所述牵开器10包括操作端13、侵入端11和两者之间的主体18。所述鞘管20套在牵开器主体18外部，与牵开器配合，所述牵开器的操作端13和侵入端11暴露于鞘管的外部。所述牵开器10的主体18横截面为圆形，所述侵入端11为平滑的圆锥形。所述牵开器主体18与侵入端11一体成型。所述牵开器的侵入端11长0.8-1.5cm，例如：0.8cm、0.9cm、1cm、1.1cm、1.2cm、1.3cm、1.4cm、1.5cm，等。As shown in FIG. 2A , FIG. 2B , FIG. 2C and FIG. 2D , the retractor 10 includes an operating end 13 , an intruding end 11 and a main body 18 between them. The sheath 20 is sleeved on the outside of the main body 18 of the retractor and cooperates with the retractor. The operation end 13 and the invasion end 11 of the retractor are exposed to the outside of the sheath. The main body 18 of the retractor 10 has a circular cross-section, and the intruding end 11 has a smooth conical shape. The main body 18 of the retractor is integrally formed with the intrusion end 11 . The invasive end 11 of the retractor is 0.8-1.5cm long, for example: 0.8cm, 0.9cm, 1cm, 1.1cm, 1.2cm, 1.3cm, 1.4cm, 1.5cm, etc.
如图3A、图3B、图3C、图3D所示，所述鞘管20包括侵入端21、尾段22和操作端23，所述尾段22靠近所述操作端23，所述操作端23设置于所述尾段22的边沿。牵开器侵入端11从鞘管侵入端21的开口穿出并堵住鞘管侵入端21的开口。As shown in Fig. 3A, Fig. 3B, Fig. 3C and Fig. 3D, the sheath tube 20 includes an invasive end 21, a tail section 22 and an operating end 23, the tail section 22 is close to the operating end 23, and the operating end 23 It is arranged on the edge of the tail section 22 . The intrusive end 11 of the retractor passes through the opening of the intrusive end 21 of the sheath and blocks the opening of the intrusive end 21 of the sheath.
工作时，鞘管20套在牵开器10外部，使牵开器侵入端11伸出鞘管20，将装配好的鞘管20和牵开器10从合适的位置侵入，直到鞘管侵入端21到达目标区域，此时将牵开器10撤出，鞘管20保持不动，形成一个手术通道。脑部手术的使用中，鞘管20套在牵开器10外部如图1B所示，将该组合装置从患者头部的手术切口插入患者的脑组织，由圆锥形牵开器侵入端11牵开脑组织，到达目标位置后，固定鞘管20，将牵开器10取出，此时鞘管侵入端21开口对准病灶位置，可以通过鞘管通孔25进入器械进行手术。牵开器10主体采用圆柱形结构，使入路操作过程中牵开应力均匀分布，从而减少对神经传导束损伤，降低了脑部手术操作引起后遗症的风险。When working, the sheath tube 20 is sleeved on the outside of the retractor 10, so that the intrusion end 11 of the retractor extends out of the sheath tube 20, and the assembled sheath tube 20 and retractor 10 are invaded from a suitable position until the sheath tube intrusion end 21 reaches the target area, at this time the retractor 10 is withdrawn, and the sheath tube 20 remains motionless to form an operation channel. In the use of brain surgery, the sheath tube 20 is set on the outside of the retractor 10 as shown in FIG. After opening the brain tissue and reaching the target position, fix the sheath tube 20 and take out the retractor 10. At this time, the opening of the sheath tube invasion end 21 is aligned with the lesion position, and the instrument can be inserted through the sheath tube through hole 25 for surgery. The main body of the retractor 10 adopts a cylindrical structure, so that the retraction stress is evenly distributed during the approach operation, thereby reducing damage to the nerve conduction bundle and reducing the risk of sequelae caused by brain surgery.
作为更优选的实施例，为了使手术器械在鞘管中获得较大的活动空间，如图1A、图3C，所述鞘管与牵开器之间的配合方式是：从牵开器的操作端沿牵开器的主体至牵开器侵入端呈由间隙配合到过盈配合的渐变过程。牵开器侵入端11的锥状外表面与鞘管侵入端21的圆锥状外表面平滑过渡，以避免结构上的断口切割脑组织形成二次伤害。所述鞘管尾段22逐渐向外敞开，呈喇叭口状。如图1A、图2A-2D所示，所述牵开器主体采用镂空结构12。所述镂空结构占牵开器主体周面积的5％-40％。镂空结构的设计主要是为了减轻重量和满足成型工艺的需求。鞘管20与牵开器10的配合应松紧适度，一方面保证推进过程中两者不会脱开，另一方面牵开器撤出时不会产生过大的阻力；从牵开器的操作端沿牵开器的主体至牵开器侵入端呈由间隙配合到过盈配合的渐变。鞘管20与牵开器10的配合是技术的关键点之一，配合太紧会导致牵开器从鞘管中撤出时阻力过大；牵开器和鞘管之间松散配合的缝隙有可能在入路操作过程中对组织造成切割。As a more preferred embodiment, in order to enable the surgical instrument to obtain a larger movable space in the sheath, as shown in Figure 1A and Figure 3C, the cooperation between the sheath and the retractor is: from the operation of the retractor The end along the main body of the retractor to the intrusive end of the retractor is in a gradual change process from clearance fit to interference fit. The conical outer surface of the intruding end 11 of the retractor and the conical outer surface of the intruding end 21 of the sheath transition smoothly, so as to avoid secondary damage caused by structural fractures cutting brain tissue. The tail section 22 of the sheath tube is gradually opened outwards and is in the shape of a bell mouth. As shown in FIG. 1A and FIGS. 2A-2D , the main body of the retractor adopts a hollow structure 12 . The hollow structure accounts for 5%-40% of the peripheral area of the main body of the retractor. The design of the hollow structure is mainly to reduce the weight and meet the needs of the molding process. The cooperation between the sheath tube 20 and the retractor 10 should be moderately tight. On the one hand, it is guaranteed that the two will not be disengaged during the advancing process, and on the other hand, excessive resistance will not be generated when the retractor is withdrawn; The end along the main body of the retractor to the intrusion end of the retractor has a gradual change from clearance fit to interference fit. The cooperation of the sheath tube 20 and the retractor 10 is one of the key points of the technology. If the fit is too tight, the resistance will be too large when the retractor is withdrawn from the sheath tube; Possible cutting of tissue during access procedure.
作为更优选的实施例，如图2A所示，所述鞘管与所述牵开器采用锁定部件形成可拆卸连接，所述锁定部件用于将所述鞘管固定于所述牵开器主体外。所述锁定部件包括凸起结构16和限位结构17，所述凸起结构用于固定鞘管侵入端，所述限位结构用于限定鞘管操作端。所述限位结构17为设置于牵开器主体18和牵开器操作端13之间的加强筋，在所述加强筋上设置有与鞘管操作端配合的结构，使鞘管20与牵开器10之间从径向和周向上均呈固定状态。所述凸起结构16设置于所述牵开器主体上接近牵开器侵入端的位置，与鞘管侵入端内表面紧配合。As a more preferred embodiment, as shown in FIG. 2A, the sheath and the retractor are detachably connected by a locking component, and the locking component is used to fix the sheath to the retractor body outside. The locking part includes a protruding structure 16 and a limiting structure 17, the protruding structure is used to fix the intruding end of the sheath, and the limiting structure is used to limit the operating end of the sheath. The position-limiting structure 17 is a reinforcing rib arranged between the main body 18 of the retractor and the operating end 13 of the retractor, and a structure cooperating with the operating end of the sheath is provided on the reinforcing rib, so that the sheath 20 is in contact with the retractor operating end. The openers 10 are in a fixed state both radially and circumferentially. The protruding structure 16 is arranged on the main body of the retractor at a position close to the intrusion end of the retractor, and closely fits with the inner surface of the sheath tube intrusion end.
作为更优选的实施例，如图1A所示，所述牵开器10设有引导孔15和锁紧装置30，所述引导孔15用于插入引导装置，所述锁紧装置30用于固定所插入的引导装置。所述引导孔15由牵开器操作端13延伸至牵开器侵入端11内部。所述锁紧装置30设置于牵开器操作端13上。所述锁紧装置包括沿导引孔径向深入至引导孔的螺栓和与螺栓配合的螺丝。引导孔15和锁紧装置30的设置，使牵开操作同时可以配合引导装置完成。As a more preferred embodiment, as shown in Figure 1A, the retractor 10 is provided with a guide hole 15 and a locking device 30, the guide hole 15 is used to insert the guide device, and the locking device 30 is used to fix Inserted guide. The guide hole 15 extends from the operating end 13 of the retractor to the intrusion end 11 of the retractor. The locking device 30 is arranged on the operating end 13 of the retractor. The locking device includes a bolt that goes deep into the guide hole radially along the guide hole and a screw that cooperates with the bolt. The arrangement of the guide hole 15 and the locking device 30 enables the retraction operation to be completed simultaneously with the guide device.
作为更优选的实施例，如图2A-2D、图3A-3D所示，入路过程中，牵开器插入的深度由尖端位置决定，手术要求鞘管开口应对准病灶位置，为了准确获知两个位置信息，更优选的设计是牵开器10和鞘管20表面都有刻度指示，便于医务人员获取深度信息，如牵开器刻度14和鞘管刻度24所示。所述鞘管20是透明的和内面磨砂的两种。所述牵开器10选自生物相容性符合医用要求的材料制成；所述鞘管20选自生物相容性符合医用要求的材料制成。鞘管20的材料不易受脑组织挤压变形；为了降低侵入阻力，接触组织的外表面应光滑。As a more preferred embodiment, as shown in Figures 2A-2D and 3A-3D, during the approach, the insertion depth of the retractor is determined by the position of the tip, and the operation requires that the opening of the sheath should be aligned with the lesion position. A more preferred design is that both the surface of the retractor 10 and the sheath tube 20 have scale indications, which is convenient for medical personnel to obtain depth information, as shown in the scale 14 of the retractor and the scale 24 of the sheath tube. The sheath tube 20 is transparent and frosted inside. The retractor 10 is made of biocompatible materials meeting medical requirements; the sheath tube 20 is made of biocompatible materials meeting medical requirements. The material of the sheath tube 20 is not easy to be deformed by the extrusion of the brain tissue; in order to reduce the invasion resistance, the outer surface contacting the tissue should be smooth.
本实用新型提供的手术用牵开穿刺装置，牵开器采用圆柱形结构，使入路操作过程中牵开应力均匀分布，从而减少对神经传导束损伤，降低了脑部手术操作引起后遗症的风险。鞘管操作端喇叭口提供较大的手术器械操作空间；鞘管提供的手术通道稳定不易变形；鞘管刻度能够方便医务人员了解插入深度。通过使用本实用新型牵开穿刺装置，可以实现在临床医生进行脑部手术操作时，对患者脑组织进行低创伤牵开穿刺操作，降低手术入路操作对患者脑组织的损伤，减少手术后遗症，同时又能为医生提供较大的手术操作空间。The retractor puncture device for surgery provided by the utility model adopts a cylindrical structure, so that the retraction stress is evenly distributed during the approach operation, thereby reducing the damage to the nerve conduction bundle and reducing the risk of sequelae caused by brain surgery. . The bell mouth at the operating end of the sheath provides a large operating space for surgical instruments; the surgical channel provided by the sheath is stable and not easily deformed; the scale of the sheath can facilitate medical staff to understand the insertion depth. By using the retraction and puncture device of the utility model, it can be realized that when the clinician performs brain surgery, the low-trauma retraction and puncture operation is performed on the patient's brain tissue, which reduces the damage to the patient's brain tissue during the surgical approach operation and reduces the sequelae of the operation. At the same time, it can provide doctors with a large operating space.
最后应说明的是：以上所述仅为本实用新型的优选实施例而已，并不用于限制本实用新型，尽管参照前述实施例对本实用新型进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810710342 | 2018-07-02 | ||
| CN2018107103420 | 2018-07-02 |
| Publication Number | Publication Date |
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| CN209548027Utrue CN209548027U (en) | 2019-10-29 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201811556743.1APendingCN109394282A (en) | 2018-07-02 | 2018-12-19 | Operation traction sting device |
| CN201822136983.8UActiveCN209548027U (en) | 2018-07-02 | 2018-12-19 | Surgical retractor puncture device |
| Application Number | Title | Priority Date | Filing Date |
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| CN201811556743.1APendingCN109394282A (en) | 2018-07-02 | 2018-12-19 | Operation traction sting device |
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| CN (2) | CN109394282A (en) |
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| CN109394282A (en)* | 2018-07-02 | 2019-03-01 | 江苏海莱新创医疗科技有限公司 | Operation traction sting device |
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