Stripper and instrument set for neurosurgery operation

Abstract

The utility model discloses a stripper. The stripper comprises a first holding part, a first extension part and a first working part, the first working part comprises a first working structure and a second working structure; one end of the first extension part is connected with the first holding part, and the other end of the first extension part is connected with the first working structure; the second working structure is parallel to the first extension part; the second working structure is arranged at the end, away from the first extension part, of the first working structure. The utility model discloses an instrument set for a neurosurgery operation. The instrument set comprises a detacher; the first cutter comprises a second holding part, a second extension part, a third working structure and a fourth working structure; one end of the second extension part is connected with the second holding part, and the other end of the second extension part is connected with the third working structure; the second cutter comprises a third holding part, a third extension part and a fifth working structure; one end of the third extension part is connected with the third holding part, and the other end of the third extension part is connected with the fifth working structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a stripper and an instrument set for neurosurgery. Background Art

[0002] Microdissectors are used to separate and protect important nerves and blood vessels during surgery. Microdissectors of different shapes and lengths are used for separation as needed. Skull base surgery requires separation operations in a narrow space due to the narrow surgical field and the large number of important blood vessels and nerves. Therefore, microdissectors are very important for ensuring surgical safety and improving surgical quality.

[0003] In the process of separating important nerves and blood vessels, the contact surface between the existing dissector and the important nerves and blood vessels is the tip of the dissector, which makes the contact area between the dissector and the important nerves and blood vessels small and can easily cause damage to the patient's important nerves and blood vessels.

[0004] In view of the above problems, the utility model provides a dissector and a neurosurgery instrument set. Utility Model Content

[0005] In order to overcome the problems raised in the background art, the utility model provides a dissector and a neurosurgery instrument set.

[0006] A stripper comprises a first holding portion, a first extension portion and a first working portion; the first working portion comprises a first working structure and a second working structure; one end of the first extension portion is connected to the first holding portion, and the other end is connected to the first working structure; an angle greater than 90° exists between the first working structure and the first extension portion; the second working structure is parallel to the first extension portion; the second working structure is arranged at an end of the first working structure away from the first extension portion; an angle greater than 90° exists between the first working structure and the second working structure.

[0007] Furthermore, the cross-sectional area of ​​the first extension portion is larger than the cross-sectional area of ​​the first working structure.

[0008] Furthermore, the cross-sectional area of ​​the first extension portion is equal to the cross-sectional area of ​​the first working structure.

[0009] Furthermore, anti-slip grooves are provided on the outer wall of the first gripping portion.

[0010] Furthermore, a first cutting structure is provided on a side of the second working structure facing the first extension portion.

[0011] Furthermore, the axis of the first holding portion coincides with the axis of the first extension portion.

[0012] A neurosurgery instrument kit, comprising:

[0013] a stripper;

[0014] The first cutter includes a second gripping portion, a second extension portion, a third working structure, and a fourth working structure; one end of the second extension portion is connected to the second gripping portion, and the other end is connected to the third working structure; the fourth working structure is disposed at an end of the third working structure away from the second extension portion;

[0015] The second cutter includes a third gripping portion, a third extension portion, and a fifth working structure; one end of the third extension portion is connected to the third gripping portion, and the other end is connected to the fifth working structure; the fifth working structure gradually contracts in a direction away from the third extension portion;

[0016] The first clamper comprises a first clamping arm and a second clamping arm which are symmetrically arranged; the first clamping arm is provided with a first clamping end at one end away from the second clamping arm; the second clamping arm is provided with a second clamping end at one end away from the first clamping arm;

[0017] The second clamper includes a third clamping arm and a fourth clamping arm which are symmetrically arranged; the third clamping arm is provided with a third clamping end at one end away from the fourth clamping arm; the fourth clamping arm is provided with a fourth clamping end at one end away from the third clamping arm.

[0018] Furthermore, it also includes a first separator; the first separator includes a fourth holding portion, a fourth extension portion and a sixth working structure; one end of the fourth extension portion is connected to the fourth holding portion, and the other end is connected to the sixth working structure; there is an angle greater than 90° between the fourth extension portion and the sixth working structure.

[0019] Furthermore, it includes a second separator; the second separator includes a fifth holding portion and a seventh working structure that are fixedly connected; there is an angle greater than 90° between the fifth holding portion and the seventh working structure.

[0020] Furthermore, it also includes a third separator; the third separator includes a sixth holding part, a fifth extension part and an eighth working structure; one end of the fifth extension part is connected to the sixth holding part, and the other end is connected to the eighth working structure; the eighth working structure gradually shrinks in the direction away from the fifth extension part.

[0021] The beneficial effects of the present invention are as follows: in the process of separating important nerves and blood vessels, the side wall of the second working structure of the stripper contacts the important nerves and blood vessels, which increases the contact area between the stripper and the important nerves and blood vessels, and effectively prevents the stripper from damaging the important nerves and blood vessels; the first cutting structure is arranged on the side of the second working structure facing the first extension part. When separating important nerves and blood vessels, the first cutting structure can be quickly aligned with the tissue to be cut and cut, which changes the existing pull-type cutting method. After the cutting is completed, the stripper can be quickly reset, thereby improving the surgical efficiency and shortening the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of a stripper for implementing the utility model;

[0023] Figure 2 for Figure 1 A partial enlarged view of

[0024] Figure 3 It is a front view of another stripper for implementing the utility model;

[0025] Figure 4 for Figure 3 A partial enlarged view of

[0026] Figure 5 This is a front view of a third stripper for implementing the present utility model;

[0027] Figure 6 for Figure 5 A partial enlarged view of

[0028] Figure 7 This is a front view of a fourth stripper for implementing the present utility model;

[0029] Figure 8 for Figure 7 A partial enlarged view of

[0030] Figure 9 This is a front view of a first cutter for implementing the present utility model;

[0031] Figure 10 This is a front view of a second cutter implementing the present utility model;

[0032] Figure 11 This is a front view of a first clamper for implementing the present utility model;

[0033] Figure 12 This is a front view of a second clamper implementing the present utility model;

[0034] Figure 13 for Figure 12 A partial enlarged view of

[0035] Figure 14 This is a front view of a first separator for implementing the utility model;

[0036] Figure 15 This is a front view of another embodiment of the first separator of the present utility model;

[0037] Figure 16 This is a front view of a second separator implementing the present utility model;

[0038] Figure 17 A front view of another embodiment of the second separator of the present invention

[0039] Figure 18 This is a front view of a third separator for implementing the present utility model;

[0040] In the figure, 11, first gripping portion; 12, first extension portion; 13, first working structure; 14, second working structure; 15, first cutting structure; 21, second gripping portion; 22, second extension portion; 23, third working structure; 24, fourth working structure; 25, second cutting structure; 31, third gripping portion; 32, third extension portion; 33, fifth working structure; 41, first clamping arm; 42, second clamping arm; 43, first clamping end; 44 , second clamping end; 51, third clamping arm; 52, fourth clamping arm; 53, third clamping end; 54, fourth clamping end; 61, fourth holding portion; 62, fourth extension portion; 63, sixth working structure; 71, fifth holding portion; 72, seventh working structure; 73, third cutting structure; 81, sixth holding portion; 82, fifth extension portion; 83, eighth working structure; 91, seventh holding portion; 92, sixth extension portion; 93, ninth working structure. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The present invention can also be implemented or applied through different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "length", "up", "down", "front", "back", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0044] Example 1

[0045] like Figure 1-2 The stripper shown includes a first holding part 11, a first extension part 12 and a first working part; the first working part includes a first working structure 13 and a second working structure 14; one end of the first extension part 12 is connected to the first holding part 11, and the other end is connected to the first working structure 13; there is an angle greater than 90° between the first working structure 13 and the first extension part 12; the second working structure 14 is parallel to the first extension part 12; the second working structure 14 is arranged at the end of the first working structure 13 away from the first extension part 12; there is an angle greater than 90° between the first working structure 13 and the second working structure 14.

[0046] Specifically, the end of the second working structure 14 away from the first working structure 13 is a ball head.

[0047] During the process of separating important nerves and blood vessels, the side wall of the second working structure 14 of the dissector contacts the important nerves and blood vessels, increasing the contact area between the dissector and the important nerves and blood vessels, effectively preventing the dissector from damaging the important nerves and blood vessels, and improving the safety of the operation.

[0048] Furthermore, the cross-sectional area of ​​the first extension portion 12 is greater than the cross-sectional area of ​​the first working structure 13. The cross-sectional area of ​​the first working structure 13 is equal to the cross-sectional area of ​​the second working structure 14. The cross-sectional areas of the first working structure 13 and the second working structure 14 are relatively small, so that the first working structure 13 and the second working structure 14 can be inserted into the patient's tissue gap.

[0049] In some embodiments of the present application, Figure 3-4As shown, the cross-sectional area of ​​the first extension 12 is equal to the cross-sectional area of ​​the first working structure 13. The cross-sectional area of ​​the first working structure 13 is equal to the cross-sectional area of ​​the second working structure 14. Increasing the cross-sectional areas of the first and second working structures 13, 14 increases their strength, thereby preventing deformation of the first and second working structures 13, 14.

[0050] In the exemplary embodiment of the present application, anti-slip grooves are provided on the outer wall of the first gripping portion 11. The anti-slip grooves are used to prevent relative sliding between the first gripping portion 11 and the doctor's hand, which could cause the first working structure 13 and the second working structure 14 to squeeze the patient's important nerves or blood vessels, thereby causing unnecessary damage.

[0051] In some embodiments of the present application, Figure 5-8 As shown, a first cutting structure 15 is provided on the side of the second working structure 14 facing the first extension 12. The first cutting structure 15 is provided on the side of the second working structure 14 facing the first extension 12. When separating important nerves and blood vessels, the first cutting structure 15 can be quickly aligned with the tissue to be cut and cut. This changes the existing pull-type cutting method. After the cutting is completed, the dissector can be quickly reset, improving surgical efficiency and shortening surgical time.

[0052] Specifically, the axis of the first gripping portion 11 coincides with the axis of the first extension portion 12 , so that the doctor can control the movement trajectories of the first working structure 13 and the second working structure 14 in the patient's body.

[0053] Example 2

[0054] like Figure 1-18 A neurosurgery instrument kit is shown, comprising:

[0055] a stripper;

[0056] First cutter, such as Figure 9 As shown, it includes a second holding portion 21, a second extension portion 22, a third working structure 23 and a fourth working structure 24; one end of the second extension portion 22 is connected to the second holding portion 21, and the other end is connected to the third working structure 23; the fourth working structure 24 is arranged at an end of the third working structure 23 away from the second extension portion 22.

[0057] The second extension 22 and the third working structure 23 form an angle greater than 90°. A second cutting structure 25 is provided on the end of the fourth working structure 24 facing the second extension 22. During use, the third working structure 23 facing the second extension 22 and the fourth working structure 24 facing away from the second extension 22 contact and dissect important nerves and blood vessels, while the second cutting structure 25 performs the cutting.

[0058] In some examples of the present application, the axis of the second gripping portion 21 coincides with the axis of the second extension portion 22 , so that the doctor can control the movement trajectory of the third working structure 23 , the fourth working structure 24 and the second cutting structure 25 in the patient's body.

[0059] The second cutter, such as Figure 10 As shown, it includes a third holding portion 31, a third extension portion 32 and a fifth working structure 33; one end of the third extension portion 32 is connected to the third holding portion 31, and the other end is connected to the fifth working structure 33; the fifth working structure 33 gradually shrinks in the direction away from the third extension portion 32.

[0060] In the specific example of the present application, a cutting edge is provided on the side of the fifth working structure 33 away from the third extension portion 32. The axis of the third gripping portion 31 coincides with the axis of the third extension portion 32, so that the doctor can control the movement trajectory of the fifth working structure 33 in the patient's body.

[0061] The first gripper, such as Figure 11 As shown, it includes a first clamping arm 41 and a second clamping arm 42 symmetrically arranged; the first clamping arm 41 has a first clamping end 43 at one end away from the second clamping arm 42; the second clamping arm 42 has a second clamping end 44 at one end away from the first clamping arm 41.

[0062] The first clamping end 43 and the second clamping end 44 are both hollow semi-spherical structures. After pressing the first clamping arm 41 and the second clamping arm 42 to engage the first clamping end 43 and the second clamping end 44, the first clamping end 43 and the second clamping end 44 form a hollow sphere.

[0063] The second gripper, such as Figure 12-13 As shown, it includes a symmetrically arranged third clamping arm 51 and a fourth clamping arm 52; the third clamping arm 51 has a third clamping end 53 at one end away from the fourth clamping arm 52; the fourth clamping arm 52 has a fourth clamping end 54 at one end away from the third clamping arm 51.

[0064] The third clamping end 53 has a first toothed surface on the side facing the fourth clamping end 54. The fourth clamping end 54 has a second toothed surface on the side facing the third clamping end 53. When the third clamping arm 51 and the fourth clamping arm 52 are pressed together to engage the third clamping end 53 and the fourth clamping end 54, the first toothed surface meshes with the second toothed surface.

[0065] In some examples of the present application, a first separator is also included; Figure 14As shown, the first separator includes a fourth holding portion 61, a fourth extension portion 62 and a sixth working structure 63; one end of the fourth extension portion 62 is connected to the fourth holding portion 61, and the other end is connected to the sixth working structure 63; there is an angle greater than 90° between the fourth extension portion 62 and the sixth working structure 63.

[0066] Specifically, the sixth working structure 63 gradually expands toward the end away from the fourth extension portion 62 .

[0067] In other examples of this application, Figure 15 As shown, a fourth separator is also included; the fourth separator includes a seventh holding portion 91, a sixth extension portion 92 and a ninth working structure 93.

[0068] One end of the sixth extension 9 is fixedly connected to the seventh gripping portion 91, and the other end is fixedly connected to the ninth working structure 93. An angle greater than 90° is formed between the sixth extension 92 and the ninth working structure 93. The ninth working structure 93 gradually expands toward the end away from the sixth extension 92 until its width exceeds the diameter of the sixth extension 92.

[0069] The axis of the fourth gripping portion 61 coincides with the axis of the fourth extension portion 62 , so that the doctor can control the movement trajectory of the sixth working structure 63 in the patient's body.

[0070] In some examples of the present application, a second separator is also included; Figure 16 As shown, the second separator includes a fifth holding portion 71 and a seventh working structure 72 that are fixedly connected; there is an angle greater than 90° between the fifth holding portion 71 and the seventh working structure 72.

[0071] The fifth gripping portion 71 gradually contracts in a direction toward the seventh working structure 72 .

[0072] In other examples of this application, Figure 17 As shown, the end of the seventh working structure 72 away from the fifth holding portion 71 is the third cutting structure 73. When in use, the third cutting structure 73 is aligned with the tissue to be cut, and then the fifth holding portion 71 is pushed, and the third cutting structure 73 can be used to perform cutting.

[0073] In some examples of the present application, a third separator is also included; Figure 18 As shown, the third separator includes a sixth holding portion 81, a fifth extension portion 82 and an eighth working structure 83. One end of the fifth extension portion 82 is connected to the sixth holding portion 81, and the other end is connected to the eighth working structure 83; the eighth working structure 83 gradually shrinks in the direction away from the fifth extension portion 82.

[0074] The axis of the sixth gripping portion 81 coincides with the axis of the fifth extension portion 82 , so that the doctor can control the movement trajectory of the eighth working structure 83 in the patient's body.

[0075] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," and "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0076] The embodiments described in this application are only a portion of the embodiments of the present invention, not all of them. Those skilled in the art can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making any creative efforts are within the scope of protection of the present invention.

Claims

1. A stripper comprising a first gripping portion, a first extending portion, and a first working portion, characterized in that: The first working part includes a first working structure and a second working structure; one end of the first extension part is connected to the first holding part, and the other end is connected to the first working structure; there is an angle greater than 90° between the first working structure and the first extension part; the second working structure is parallel to the first extension part; the second working structure is arranged at an end of the first working structure away from the first extension part; there is an angle greater than 90° between the first working structure and the second working structure.

2. A stripper according to claim 1, characterized in that: The cross-sectional area of ​​the first extension portion is greater than the cross-sectional area of ​​the first working structure.

3. The stripper according to claim 1, characterized in that: The cross-sectional area of ​​the first extension portion is equal to the cross-sectional area of ​​the first working structure.

4. A stripper according to claim 2 or 3, characterized in that: Anti-slip grooves are provided on the outer wall of the first gripping portion.

5. A stripper according to claim 2 or 3, characterized in that: A first cutting structure is provided on a side of the second working structure facing the first extension portion.

6. A stripper according to claim 2 or 3, characterized in that: The axis of the first holding portion coincides with the axis of the first extension portion.

7. A neurosurgery instrument set, characterized in that: It includes: A stripper according to any one of claims 1 to 3; The first cutter includes a second gripping portion, a second extension portion, a third working structure, and a fourth working structure; one end of the second extension portion is connected to the second gripping portion, and the other end is connected to the third working structure; the fourth working structure is disposed at an end of the third working structure away from the second extension portion; The second cutter includes a third gripping portion, a third extension portion, and a fifth working structure; one end of the third extension portion is connected to the third gripping portion, and the other end is connected to the fifth working structure; the fifth working structure gradually contracts in a direction away from the third extension portion; The first clamper comprises a first clamping arm and a second clamping arm which are symmetrically arranged; the first clamping arm is provided with a first clamping end at one end away from the second clamping arm; the second clamping arm is provided with a second clamping end at one end away from the first clamping arm; The second clamper includes a third clamping arm and a fourth clamping arm which are symmetrically arranged; the third clamping arm is provided with a third clamping end at one end away from the fourth clamping arm; the fourth clamping arm is provided with a fourth clamping end at one end away from the third clamping arm.

8. The neurosurgery instrument kit according to claim 7, characterized in that: It also includes a first separator; the first separator includes a fourth holding portion, a fourth extension portion and a sixth working structure; one end of the fourth extension portion is connected to the fourth holding portion, and the other end is connected to the sixth working structure; there is an angle greater than 90° between the fourth extension portion and the sixth working structure.

9. The neurosurgery instrument kit according to claim 7, characterized in that: Also includes a second separator; the second separator includes a fifth holding portion and a seventh working structure that are fixedly connected; An included angle greater than 90° exists between the fifth gripping portion and the seventh working structure.

10. The neurosurgery instrument kit according to claim 7, characterized in that: It also includes a third separator; the third separator includes a sixth holding part, a fifth extension part and an eighth working structure; one end of the fifth extension part is connected to the sixth holding part, and the other end is connected to the eighth working structure; the eighth working structure gradually shrinks in the direction away from the fifth extension part.

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