CN214966314U

CN214966314U - Neurovascular cutting forceps

Info

Publication number: CN214966314U
Application number: CN202120724091.9U
Authority: CN
Inventors: 李翔
Original assignee: Nanjing First Hospital
Current assignee: Nanjing First Hospital
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-03
Anticipated expiration: 2031-04-09

Abstract

The utility model belongs to the field of medical equipment, a neurovascular cutting pincers is related to, include: the cutting pliers comprise a cutting pliers fixing part, a cutting pliers moving part, a movable holding part, a second gear part and a spring part, wherein the top of the cutting pliers fixing part is a first shell and a second shell which are communicated with each other; the second gear part and the movable holding part are arranged on the cutting clamp fixing part main body through a first fixing column and a second fixing column respectively; one end of the cutting clamp moving part is a straight gear part, the other end of the cutting clamp moving part is a moving rod which is connected into a whole, and second cutting clamps are arranged above the end parts of the moving rod. The neurovascular cutting forceps can fix nerves and blood vessels and then cut off the nerves and the blood vessels completely, and is more favorable for operation on occasions with deeper operation positions and smaller operation space.

Description

Neurovascular cutting forceps

Technical Field

The utility model belongs to the field of medical equipment, especially, relate to a neurovascular cutting pincers.

Background

Nerve displacement and vascular anastomosis are common procedures in clinical neurosurgery and hand surgery. The nerve and blood vessel need to be cut and anastomosed in the operation, the surgical instrument commonly used for cutting at present is a common tissue scissors, but because the surface of the nerve and blood vessel is smooth, when the nerve and blood vessel are cut off by the common scissors, the nerve or blood vessel can not be completely cut off at one time because the scissors opening slides, the nerve or blood vessel needs to be repeatedly cut off, the needed nerve and blood vessel are often inaccurate in length and uneven in cut end, and the anastomosis effect is seriously influenced. In addition, the neurovascular anastomosis operation generally has a small operation space, so that the common tissue scissors are difficult to completely extend into an operation area for operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a neurovascular cutting pincers, include: the cutting pliers comprise a cutting pliers fixing part, a cutting pliers moving part, a movable holding part, a second gear part and a spring part, wherein the top of the cutting pliers fixing part is a first shell and a second shell which are communicated with each other; a first fixing column and a second fixing column are arranged on the cutting clamp fixing part main body; the second gear part and the movable holding part are arranged on the cutting clamp fixing part main body through a first fixing column and a second fixing column respectively; one end of the movable part of the cutting clamp is a straight gear part, the other end of the movable part of the cutting clamp is a moving rod which is integrally connected, and a second cutting clamp is arranged above the end part of the moving rod; one end of the spring part is connected with a first spring seat on the fixed holding part, and the other end of the spring seat is connected with a second spring seat on the movable holding part.

According to the exemplary embodiment of the present invention, set up first cutting tool on the first cutting pliers, first cutting tool is the arc line type.

According to the utility model discloses an exemplary embodiment, set up the second cutting tool on the second cutting pincers, the second cutting tool is the arc line type, and first cutting tool and second cutting tool set up relatively.

According to an exemplary embodiment of the present invention, the first gear part and the second gear part of the movable grip part are matched.

According to an exemplary embodiment of the invention, the second gear part matches with a spur gear part of the movable part of the cutting jaw.

According to the exemplary embodiment of the present invention, a moving guide assembling groove is provided on the second housing.

According to the utility model discloses an exemplary embodiment, set up the moving guide who matches with moving guide assembly groove on the cutting pincers movable part, the interval sets up the heavy groove that subtracts who link up on the moving guide of carriage release lever.

Compared with the prior art, the utility model discloses a neurovascular cutting pincers, through comprehensive structural design, can fix nerve and blood vessel then complete cutting is cut off again, is favorable to operating the occasion that the position is darker, operating space is less simultaneously more operating.

Drawings

Fig. 1 is a schematic structural view of a neurovascular cutting forceps according to the present invention;

FIG. 2 is a partial cross-sectional view of a neurovascular cutting forceps according to the present invention;

FIG. 3 is a schematic structural view of a movable portion of a cutting pliers according to the present invention;

fig. 4 is a partial enlarged view of the neurovascular cutting forceps according to the present invention.

In the figure, A-cutting pliers fixing part, A1-first housing, A2-second housing, A3-first cutting pliers, A4-fixed holding part, A5-first fixed column, A6-second fixed column, A7-first spring seat, B-cutting pliers moving part, B1-moving rod, B2-second cutting pliers, B3-straight gear part, C-movable holding part, C1-first gear part, C2-second spring seat, D-second gear part, E-spring part, A21-moving guide rail assembling groove, B11-moving guide rail, B12-weight reducing groove, B21-second cutting knife and A31-first cutting knife.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a neurovascular cutting forceps comprises: a cutting nipper fixing part A, a cutting nipper moving part B, a movable holding part C, a second gear part D and a spring part E.

Specifically, the top of the cutting jaw fixing part a is a first shell a1 and a second shell a2 which are communicated with each other, one shell face of the first shell a1 extends into a cutting jaw fixing part body and a fixing grip a4 integrally connected with the cutting jaw fixing part body, and a first cutting jaw A3 is arranged above the end of the second shell a 2; the cutting clamp fixing part main body is provided with a first fixing column A5 and a second fixing column A6; the second gear part D and the movable holding part C are arranged on the cutting clamp fixing part main body through a first fixing column A5 and a second fixing column A6 respectively; one end of the cutting clamp moving part B is a straight gear part B3, the other end is a moving rod B1 which is integrally connected, and a second cutting clamp B2 is arranged above the end part of the moving rod B1; one end of the spring part E is connected with a first spring seat A7 on the fixed holding part A4, and the other end of the spring seat E is connected with a second spring seat C2 on the movable holding part C.

As shown in fig. 4, the first cutting jaw A3 is provided with a first cutting tool a31, the first cutting tool a31 is in an arc shape.

As shown in fig. 3, the second cutting jaw B2 is provided with a second cutting knife B21, and the second cutting knife B21 is in an arc shape. The first cutter a31 and the second cutter B21 are disposed opposite to each other.

As shown in fig. 1, the first gear part C1 of the movable grip part C matches with the second gear part D.

The second gear portion D matches with the spur gear portion B3 of the cutting jaw movable portion B.

As shown in fig. 2, 3 and 4, the second housing a2 is provided with a moving rail fitting groove a 21.

The cutting nipper moving part B is provided with a moving guide rail B11 matched with the moving guide rail assembling groove A21, and a moving guide rail B11 of a moving rod B1 is provided with a through lightening groove B12 at intervals.

As shown in fig. 1, when the neurovascular cutting forceps according to the present invention works, under the action of the spring portion E, there is a certain distance between the movable grip portion C and the fixed grip portion a4, and at this time, there is a certain gap between the second cutting forceps B2 of the movable cutting forceps B and the first cutting forceps A3 of the fixed cutting forceps a; when cutting, the movable holding part C and the fixed holding part A4 are held, the movable holding part C is held and pressed down according to the size of the cut nerve and blood vessel, the movable holding part C drives the second gear part D to rotate through the rotation of the first gear part C1, the second gear part D rotates to drive the straight gear part B3 to move backwards, so that the cutting clamp movable part B moves towards the cutting clamp fixed part A, and the first cutting tool A31 on the first cutting clamp A3 and the second cutting tool B21 on the second cutting clamp B2 cut the target object; after the cutting is finished, the movable holding part C is released, under the action of the spring part E, the second gear part D is driven to rotate by the rotation of the first gear part C1, the second gear part D rotates to drive the straight gear part B3 to move forwards, and therefore the movable cutting nipper part B moves away from the fixed cutting nipper part A.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A neurovascular cutting forceps, comprising: the cutting pliers comprise a cutting pliers fixing part (A), a cutting pliers moving part (B), a movable holding part (C), a second gear part (D) and a spring part (E), wherein the top of the cutting pliers fixing part (A) is a first shell (A1) and a second shell (A2) which are communicated with each other, one shell surface of the first shell (A1) extends to form a cutting pliers fixing part main body and a fixed holding part (A4) which is integrally connected with the cutting pliers fixing part main body, and a first cutting pliers (A3) is arranged above the end part of the second shell (A2); the cutting clamp fixing part main body is provided with a first fixing column (A5) and a second fixing column (A6); the second gear part (D) and the movable holding part (C) are respectively arranged on the cutting nipper fixing part main body through a first fixing column (A5) and a second fixing column (A6); one end of the cutting clamp movable part (B) is a straight gear part (B3), the other end is a moving rod (B1) which is integrally connected, and a second cutting clamp (B2) is arranged above the end part of the moving rod (B1); one end of the spring part (E) is connected with a first spring seat (A7) on the fixed holding part (A4), and the other end of the spring seat (E) is connected with a second spring seat (C2) on the movable holding part (C).

2. The neurovascular cutting forceps according to claim 1, wherein the first cutting forceps (A3) is provided with a first cutting knife (a31), and the first cutting knife (a31) is arc-shaped.

3. The neurovascular cutting forceps according to claim 2, wherein the second cutting forceps (B2) is provided with a second cutting blade (B21), the second cutting blade (B21) is arc-shaped, and the first cutting blade (a31) and the second cutting blade (B21) are oppositely arranged.

4. The neurovascular cutting forceps according to claim 1, wherein the first gear part (C1) and the second gear part (D) at the distal end of the movable grip part (C) are geared with each other.

5. The neurovascular cutting forceps according to claim 1, wherein the second gear part (D) and the spur gear part (B3) of the cutting forceps movable part (B) are geared with each other.

6. The neurovascular cutting forceps according to claim 1, wherein a moving guide fitting groove (a21) is provided on the second housing (a 2).

7. The neurovascular cutting forceps according to claim 6, wherein the movable part (B) of the forceps is provided with a moving guide (B11) matched with the moving guide assembling groove (A21), and the moving guide (B11) is provided with a through lightening groove (B12) at intervals.