技术领域Technical Field
本实用新型涉及医疗辅助器械技术领域，更具体地说，涉及一种双偏心距打拔器。The utility model relates to the technical field of medical auxiliary equipment, and more specifically to a double eccentricity pulling device.
背景技术Background Art
人工髋关节置换术是一种针对患者髋关节病变的治疗手术，采用生物相容性和机械性能良好的金属材料制成类似人体骨关节的假体，通过手术将关节假体植入病损关节处，代替因疾病或损伤所损坏的关节，消除患者疼痛并恢复关节的活动功能。Artificial hip replacement is a surgical procedure to treat hip joint lesions. It uses metal materials with good biocompatibility and mechanical properties to make a prosthesis similar to human bone joints. The joint prosthesis is surgically implanted into the diseased joint to replace the joint damaged by disease or injury, eliminating the patient's pain and restoring the joint's mobility.
在手术过程中，需要根据患者股骨大小依次选用髓腔锉对股骨髓腔进行逐级扩髓，使股骨假体能够更好与股骨髓腔匹配。使用手术器械时需避开肌肉组织，防止损伤软组织，基于这一问题，目前市场上出现了一种弯曲的髓腔锉打拔器，这种打拔器在与髓腔锉平行的方向上设计成固定结构，在这一垂直方向上更加便于手术操作人员握持髓腔锉，使其在进行操作扩髓过程中更加精准，而在这垂直方向的固定结构在进行握持后不便于操作人员在过程中进行观察，握持手容易遮挡扩髓部位，无法有效的避开股骨髓腔周围的肌肉组织，本实用新型针对以上问题提出了一种新的解决方案。During the operation, it is necessary to select medullary cavity files in sequence according to the size of the patient's femur to expand the femoral medullary cavity step by step, so that the femoral prosthesis can better match the femoral medullary cavity. When using surgical instruments, it is necessary to avoid muscle tissue to prevent damage to soft tissue. Based on this problem, a curved medullary cavity file puller is currently on the market. This puller is designed as a fixed structure in a direction parallel to the medullary cavity file. In this vertical direction, it is easier for the surgical operator to hold the medullary cavity file, making it more accurate during the medullary expansion process. However, the fixed structure in this vertical direction is not convenient for the operator to observe the process after holding it, and the holding hand is likely to block the medullary expansion site, and it is impossible to effectively avoid the muscle tissue around the femoral medullary cavity. The utility model proposes a new solution to the above problems.
实用新型内容Utility Model Content
针对现有技术中存在的问题，本实用新型的目的在于提供一种双偏心距打拔器，以解决背景技术中所提到的技术问题。In view of the problems existing in the prior art, the purpose of the utility model is to provide a double eccentricity puller to solve the technical problems mentioned in the background technology.
为解决上述问题，本实用新型采用如下的技术方案。To solve the above problems, the utility model adopts the following technical solutions.
一种双偏心距打拔器，包括两组外壳，两组外壳对称安装后形成主体，所述主体内部开设有异形腔，主体尾部开设有握持槽，异形腔内对应握持槽前方呈纵向设置有第一安装轴，第一安装轴上转动安装有手柄，手柄顶端延伸至握持槽上方，手柄与第一安装轴连接端设置有连接柄，异形腔内对应连接柄位置异形连接杆，异形连接杆顶端与连接柄转动连接，异形连接杆末端转动连接有夹持块，异形腔内对于夹持块顶端位置设置有第二安装轴，夹持块顶端转动连接与第二安装轴上。A double eccentricity puller comprises two groups of outer shells, which are symmetrically installed to form a main body, a special-shaped cavity is provided inside the main body, a holding groove is provided at the rear of the main body, a first installation axis is longitudinally arranged in the special-shaped cavity in front of the holding groove, a handle is rotatably installed on the first installation axis, the top of the handle extends to above the holding groove, a connecting handle is arranged at the connecting end of the handle and the first installation axis, a special-shaped connecting rod is arranged in the special-shaped cavity at the position corresponding to the connecting handle, the top of the special-shaped connecting rod is rotatably connected to the connecting handle, a clamping block is rotatably connected to the end of the special-shaped connecting rod, a second installation axis is arranged in the special-shaped cavity at the top position of the clamping block, and the top of the clamping block is rotatably connected to the second installation axis.
优选的是，所述主体尾部设置尾托，尾托上开设有连接槽，两组所述外壳末端设置有安装销，主体通过安装销与尾托固定连接。Preferably, a buttstock is provided at the rear of the main body, a connecting groove is provided on the buttstock, mounting pins are provided at the ends of the two groups of shells, and the main body is fixedly connected to the buttstock through the mounting pins.
在上述任一方案中优选的是，所述主体顶端与所述安装销呈横向平行设置。In any of the above schemes, preferably, the top end of the main body is arranged in parallel with the mounting pin.
在上述任一方案中优选的是，所述手柄上端面设置有防滑纹。Preferably, in any of the above solutions, the upper end surface of the handle is provided with anti-slip patterns.
在上述任一方案中优选的是，所述夹持块与髓腔锉连接端面设置有摩擦齿。In any of the above solutions, preferably, the end surface where the clamping block is connected to the intramedullary file is provided with friction teeth.
相比于现有技术，本实用新型的优点在于：Compared with the prior art, the advantages of the present invention are:
本实用新型提供一种双偏心距打拔器，通过两组外壳安装后形成主体顶端与尾部呈偏心结构设置，当操作人员在通过此打拔器进行握持髓腔锉时，偏心结构使得手术操作人员便于对扩髓部位的观察，使得操作过程更加可控，同时顶端的偏心结构也更加有效的避开股骨髓腔周围的肌肉组织，减少扩髓过程中对周围肌肉组织的损伤，有利于患者后期的活动恢复。The utility model provides a double eccentric distance puller, which is formed by assembling two sets of shells to form an eccentric structure at the top and tail of the main body. When the operator holds the medullary cavity file through the puller, the eccentric structure makes it easy for the operator to observe the medullary expansion site, making the operation process more controllable. At the same time, the eccentric structure at the top can more effectively avoid the muscle tissue around the femoral medullary cavity, reduce the damage to the surrounding muscle tissue during the medullary expansion process, and is beneficial to the patient's later activity recovery.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本实用新型的一种双偏心距打拔器的整体结构示意图；FIG1 is a schematic diagram of the overall structure of a double eccentricity puller of the utility model;
图2为本实用新型异形腔内部结构示意图；FIG2 is a schematic diagram of the internal structure of the special-shaped cavity of the utility model;
图3为本实用新型俯视图结构示意图；Figure 3 is a schematic diagram of the structure of the utility model from top view;
图4为本实用新型尾托部位结构示意图。FIG. 4 is a schematic diagram of the structure of the buttstock of the utility model.
图中标号说明：Description of the numbers in the figure:
1、外壳；2、主体；3、异形腔；4、握持槽；5、第一安装轴；6、手柄；7、连接柄；8、异形连接杆；9、夹持块；10、第二安装轴；11、尾托；12、连接槽；13、安装销；14、防滑纹；15、摩擦齿。1. Shell; 2. Main body; 3. Special-shaped cavity; 4. Holding groove; 5. First mounting axis; 6. Handle; 7. Connecting handle; 8. Special-shaped connecting rod; 9. Clamping block; 10. Second mounting axis; 11. Stock; 12. Connecting groove; 13. Mounting pin; 14. Anti-slip pattern; 15. Friction tooth.
具体实施方式DETAILED DESCRIPTION
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述；显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例，基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.
实施例Example
请参阅图1至图4，一种双偏心距打拔器，包括两组外壳1，两组外壳1对称安装后形成主体2，所述主体2内部开设有异形腔3，主体2尾部开设有握持槽4，异形腔3内对应握持槽4前方呈纵向设置有第一安装轴5，第一安装轴5上转动安装有手柄6，手柄6顶端延伸至握持槽4上方，手柄6与第一安装轴5连接端设置有连接柄7，异形腔3内对应连接柄7位置异形连接杆8，异形连接杆8顶端与连接柄7转动连接，异形连接杆8末端转动连接有夹持块9，异形腔3内对于夹持块9顶端位置设置有第二安装轴10，夹持块9顶端转动连接与第二安装轴10上。Please refer to Figures 1 to 4, a double eccentricity puller includes two groups of shells 1, which are symmetrically installed to form a main body 2, a special-shaped cavity 3 is opened inside the main body 2, a gripping groove 4 is opened at the tail of the main body 2, a first installation axis 5 is longitudinally arranged in front of the special-shaped cavity 3 corresponding to the gripping groove 4, a handle 6 is rotatably installed on the first installation axis 5, the top of the handle 6 extends to the top of the gripping groove 4, a connecting handle 7 is arranged at the connecting end of the handle 6 and the first installation axis 5, a special-shaped connecting rod 8 is arranged in the special-shaped cavity 3 corresponding to the position of the connecting handle 7, the top of the special-shaped connecting rod 8 is rotatably connected to the connecting handle 7, and the end of the special-shaped connecting rod 8 is rotatably connected to a clamping block 9, a second installation axis 10 is arranged at the top position of the clamping block 9 in the special-shaped cavity 3, and the top of the clamping block 9 is rotatably connected to the second installation axis 10.
在本实施例中，所述主体2尾部设置尾托11，尾托11上开设有连接槽12，两组所述外壳1末端设置有安装销13，主体2通过安装销13与尾托11固定连接。In this embodiment, a buttstock 11 is disposed at the rear of the main body 2 , a connecting groove 12 is provided on the buttstock 11 , and mounting pins 13 are disposed at the ends of the two groups of shells 1 , and the main body 2 is fixedly connected to the buttstock 11 via the mounting pins 13 .
在本实施例中，所述主体2顶端与所述安装销13呈横向平行设置。In this embodiment, the top end of the main body 2 is arranged in parallel with the mounting pin 13 in the transverse direction.
在本实施例中，所述手柄6上端面设置有防滑纹14。In this embodiment, the upper end surface of the handle 6 is provided with anti-slip patterns 14 .
在本实施例中，所述夹持块9与髓腔锉连接端面设置有摩擦齿15。In this embodiment, the end surface of the clamping block 9 connected to the intramedullary file is provided with friction teeth 15 .
本实用新型的工作过程如下：The working process of the utility model is as follows:
本实用新型在进行使用过程中，手术操作人员通过上拨手柄6使得与手柄6连接的异形连接杆8运动，异形连接杆8驱动顶端夹持块9打开，操作人员手持主体使2通过下压手柄6使夹持块9与髓腔锉固定连接，操作人员在扩髓过程中手持主体2与手柄6使得髓腔锉与打拔器牢牢连接在一起，扩髓操作完成后，操作人员可解除对手柄6的下压，夹持块9在重力作用下解除与髓腔锉的连接，通过两组外壳1安装后形成主体2顶端与尾部呈偏心结构设置，当操作人员在通过此打拔器进行握持髓腔锉时，偏心结构使得手术操作人员便于对扩髓部位的观察，使得操作过程更加可控，同时顶端的偏心结构也更加有效的避开股骨髓腔周围的肌肉组织，减少扩髓过程中对周围肌肉组织的损伤，有利于患者后期的活动恢复。When the present invention is in use, the operator can move the special-shaped connecting rod 8 connected to the handle 6 by pushing up the handle 6, and the special-shaped connecting rod 8 drives the top clamping block 9 to open. The operator holds the main body 2 and presses down the handle 6 to fix the clamping block 9 with the intramedullary file. During the process of medullary expansion, the operator holds the main body 2 and the handle 6 so that the intramedullary file and the puller are firmly connected together. After the medullary expansion operation is completed, the operator can release the downward pressure on the handle 6, and the clamping block 9 is released from the intramedullary file under the action of gravity. The top and tail of the main body 2 are formed into an eccentric structure after the two groups of shells 1 are installed. When the operator holds the intramedullary file through the puller, the eccentric structure makes it easier for the operator to observe the medullary expansion site, making the operation process more controllable. At the same time, the eccentric structure at the top can more effectively avoid the muscle tissue around the femoral medullary cavity, reduce the damage to the surrounding muscle tissue during the process of medullary expansion, and is beneficial to the patient's later activity recovery.
在本实用新型的描述中，需要理解的是，术语“ 上”、“ 下”、“ 前”、“ 后”、“ 左”、“ 右”、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，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。In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
以上所述，仅为本实用新型较佳的具体实施方式；但本实用新型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实用新型揭露的技术范围内，根据本实用新型的技术方案及其改进构思加以等同替换或改变，都应涵盖在本实用新型的保护范围内。The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323655374.0UCN221844879U (en) | 2023-12-31 | 2023-12-31 | A double eccentricity puller |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323655374.0UCN221844879U (en) | 2023-12-31 | 2023-12-31 | A double eccentricity puller |
| Publication Number | Publication Date |
|---|---|
| CN221844879Utrue CN221844879U (en) | 2024-10-18 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323655374.0UActiveCN221844879U (en) | 2023-12-31 | 2023-12-31 | A double eccentricity puller |
| Country | Link |
|---|---|
| CN (1) | CN221844879U (en) |
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