CN109009395B

CN109009395B - Centrum centre gripping pincers

Info

Publication number: CN109009395B
Application number: CN201810973693.0A
Authority: CN
Inventors: 唐佩福; 季欣然; 王松; 张里程
Original assignee: Chinese PLA General Hospital
Current assignee: Chinese PLA General Hospital
Priority date: 2018-08-24
Filing date: 2018-08-24
Publication date: 2020-10-20
Anticipated expiration: 2038-08-24
Also published as: CN109009395A

Abstract

The invention discloses a pair of centrum clamping forceps, which comprises an upper forceps handle, a lower forceps handle and a connecting shaft, wherein the connecting shaft penetrates through mounting holes in the upper forceps handle and the lower forceps handle to hinge the upper forceps handle and the lower forceps handle; the upper and lower plier handles comprise plier handles and plier heads, the plier heads are arranged at one ends of the plier handles, one sides of the plier heads of the upper and lower plier handles are provided with a plurality of hook teeth, and the hook teeth are of pointed structures and are arranged on the side surfaces of the plier heads corresponding to the upper and lower plier handles in parallel; the occlusal surfaces of the upper forceps handle and the lower forceps handle corresponding to the forceps heads are provided with embedded holes which are uniformly distributed along the main body direction of the forceps heads. The vertebral body clamping forceps are used for transversely clamping vertebral plates, and are reasonable in structure and convenient and fast to operate, when in occlusion clamping, the transverse protrusions on the vertebral body are sleeved in the nesting holes of the forceps heads, and the hook teeth on the forceps heads are inserted into the vertebral body for occlusion, so that the reliability of clamping is effectively improved; the forceps handle and the forceps head are not on the same axis, so that the centrum can be controlled and clamped on one side, and smooth development of the centrum operation is facilitated.

Description

Centrum centre gripping pincers

Technical Field

The invention relates to the technical field of medical instruments, in particular to a vertebral body clamping forceps.

Background

With the rapid development of spinal surgery, the reliability of vertebral body clamping during the surgery is of great importance, and at present, a common vascular clamp is generally used for clamping and taking out a spine, and has the following defects: the opening of the clamp is small, and clamping is not firm. In some operations, a vertebral body needs to be transversely clamped, transverse bony bulges are arranged on the vertebral body, and under the condition, the clamping action cannot be finished by the common vascular forceps at all, so that the smooth development of the vertebral body operation is influenced.

Therefore, it is desirable to design a vertebral body clamping forceps to solve the problems in the prior art.

Disclosure of Invention

The invention aims to solve the technical problems, and provides the vertebral body clamping forceps which are used for transversely clamping the vertebral plate, have reasonable structure and convenient and fast operation, and when in occlusion clamping, the transverse process on the vertebral body is sleeved in the nesting hole of the forceps head, and a plurality of hook teeth on the forceps head are inserted into the vertebral body for occlusion, so that the reliability of clamping is effectively improved; the forceps handle and the forceps head are not on the same axis, so that the centrum can be controlled and clamped on one side, and smooth development of the centrum operation is facilitated.

In order to solve the technical problem, the invention provides a pair of centrum clamping forceps, which specifically comprises an upper forceps handle, a lower forceps handle and a connecting shaft, wherein the connecting shaft penetrates through mounting holes in the upper forceps handle and the lower forceps handle to hinge the upper forceps handle and the lower forceps handle; the upper and lower plier handles comprise plier handles and plier heads, the plier heads are arranged at one ends of the plier handles, one sides of the plier heads of the upper and lower plier handles are provided with a plurality of hook teeth, and the hook teeth are of pointed structures and are arranged on the side surfaces of the plier heads corresponding to the upper and lower plier handles in parallel; the occlusal surfaces of the upper forceps handle and the lower forceps handle corresponding to the forceps heads are provided with embedded holes which are uniformly distributed along the main body direction of the forceps heads.

In some embodiments, the teeth are flared in the direction of occlusion and have a ball at the end. The arrangement of the ball body can prevent the hook teeth from being inserted too deep into the vertebral body to influence the performance of the vertebral body.

In some embodiments, the meshing direction of the hook teeth is provided with a plurality of insections which are uniformly distributed in the meshing direction of the hook teeth.

In some embodiments, the insections on the hook teeth are arranged along the main body direction of the forceps head.

In some embodiments, the handle and the head are not on the same axis. Therefore, the operator can transversely clamp the vertebral body on one side, so that a wider space is provided for the operation, and the smooth development of the operation is promoted.

In some embodiments, the hook teeth on the head of the upper forceps handle and the hook teeth on the head of the lower forceps handle are arranged on the same side, so that the head of the upper forceps handle and the head of the lower forceps handle are engaged with each other, and the hook teeth are inserted into a vertebral body, so that the vertebral body can be clamped more reliably.

In some embodiments, the nested holes are disposed through the jaws with an inner diameter that matches the diameter of the transverse process on the vertebral body. Therefore, the transverse projection on the vertebral body is sleeved in the nesting hole, so that the vertebral body can be better clamped, and the clamping reliability is improved.

The invention has the beneficial effects that:

the vertebral body clamping forceps provided by the invention are reasonable in structure and convenient and fast to operate, and have the following technical effects:

(1) the transverse process on the cone body is sleeved in the nesting hole of the forceps head, and a plurality of hook teeth on the forceps head are inserted into the cone body to be occluded, so that the clamping reliability is effectively improved;

(2) the forceps handle and the forceps head are not on the same axis, so that the centrum can be controlled and clamped on one side, and smooth development of the centrum operation is facilitated.

Drawings

The above advantages of the present invention will become more apparent and more readily appreciated from the detailed description set forth below when taken in conjunction with the drawings, which are intended to be illustrative, not limiting, of the invention and in which:

FIG. 1 is a schematic structural view of a vertebral body clamping forceps according to the present invention;

FIG. 2 is a schematic structural view of the head of the upper jaw handle of the present invention;

fig. 3 is a schematic view of the structure of the hook tooth of the present invention.

In the figure:

1. an upper clamp handle; 2. a lower clamp handle; 3. a connecting shaft; 4. hooking teeth; 5. embedding a sleeve hole; 6. a sphere; 7. insection.

Detailed Description

Fig. 1 to 3 are related schematic views of a vertebral body clamping forceps according to the present invention, and the present application will be described in detail with reference to the following embodiments and the accompanying drawings.

The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. Note that, in order to clearly show the structures of the respective members of the embodiments of the present invention, the same reference numerals are used to denote the same parts.

The structure schematic diagram of the vertebral body clamping forceps is shown in fig. 1, and specifically comprises an upper forceps handle 1, a lower forceps handle 2 and a connecting shaft 3, wherein the connecting shaft 3 penetrates through mounting holes in the upper forceps handle 1 and the lower forceps handle 2 to hinge the upper forceps handle 1 and the lower forceps handle 2; the upper clamp handle 1 and the lower clamp handle 2 comprise clamp handles and clamp heads, the clamp heads are arranged at one ends of the clamp handles, a plurality of hook teeth 4 are arranged on one sides of the clamp heads of the upper clamp handle 1 and the lower clamp handle 2, the hook teeth 4 are of pointed structures and are arranged on the side surfaces of the clamp heads corresponding to the upper clamp handle 1 and the lower clamp handle 2 in parallel; the occlusal surfaces of the upper forceps handle 1 and the lower forceps handle 2 corresponding to the forceps heads are provided with embedding holes 5 which are uniformly distributed along the main body direction of the forceps heads.

In the present application, the teeth 4 are flared in the direction of occlusion and provided with a ball 6 at the end, as shown in fig. 2. The arrangement of the ball body can prevent the hook teeth from being inserted too deep into the vertebral body to influence the performance of the vertebral body;

in the embodiment shown in fig. 1, the hook teeth 4 on the binding clip of the upper clamp handle 1 and the hook teeth 4 on the binding clip of the lower clamp handle 2 are arranged on the same side; the embedding hole 5 penetrates through the forceps head, the inner diameter of the embedding hole is matched with the diameter of the transverse process on the vertebral body, and the inner diameter of the embedding hole 5 is slightly larger than the diameter of the transverse process on the vertebral body. Use this application during centrum centre gripping pincers centre gripping centrum, the transverse process on the centrum just in time overlaps and establishes in the inside of inlaying nested hole 5, and the tip that is located the hook 4 of binding clip lateral part inserts to the centrum to more firm centre gripping centrum.

In some embodiments, the teeth 4 are provided with a plurality of insections 7 in the engaging direction, which are uniformly distributed in the engaging direction of the teeth 4, as shown in fig. 3; the insections 7 on the hook teeth 4 are arranged along the main body direction of the forceps head. The binding clip of going up pincers handle 1 and the mutual interlock of binding clip of pincers handle 2 down, the gullet tooth 4 inserts in the centrum, and the setting of horizontal insection 7 can increase the frictional force between gullet tooth and the centrum, effectively prevents the landing of centre gripping in-process centrum, strengthens the reliability of centre gripping.

In the application, the forceps handle and the forceps head are not on the same axis, so that an operator can transversely clamp a vertebral body on one side, a wider space is provided for operation, and smooth development of the operation is promoted.

The utility model provides a centrum centre gripping pincers is used for transversely centre gripping vertebral plate, especially has the bony protrusion of transverse process on the centrum, need carefully separate muscle and the ligament tissue that adheres to on the transverse process before the use to with it to both sides, so that expose vertebral plate both sides transverse process, make things convenient for the clamping operation.

Compared with the prior art, the vertebral body clamping forceps provided by the invention are reasonable in structure and convenient to operate, when in occlusion clamping, the transverse process on the vertebral body is sleeved in the nesting hole of the forceps head, and the hook teeth on the forceps head are inserted into the vertebral body for occlusion, so that the clamping reliability is effectively improved; the forceps handle and the forceps head are not on the same axis, so that the centrum can be controlled and clamped on one side, and smooth development of the centrum operation is facilitated.

The present invention is not limited to the above embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which are the same as or similar to the technical solutions of the present invention, fall within the protection scope of the present invention.

Claims

1. A vertebral body clamping forceps comprises an upper forceps handle (1), a lower forceps handle (2) and a connecting shaft (3), wherein the connecting shaft (3) penetrates through mounting holes in the upper forceps handle (1) and the lower forceps handle (2) to hinge the upper forceps handle and the lower forceps handle; the novel multifunctional pliers are characterized in that the upper pliers handle (1) and the lower pliers handle (2) comprise pliers handles and pliers heads, the pliers heads are arranged at one ends of the pliers handles, a plurality of hook teeth (4) are arranged on one sides of the pliers heads of the upper pliers handle (1) and the lower pliers handle (2), the hook teeth (4) are of pointed structures and are arranged on the side faces of the pliers heads corresponding to the upper pliers handle (1) and the lower pliers handle (2) in parallel; go up and be provided with on the occlusal surface that pincers handle (1) and lower pincers handle (2) correspond the binding clip and inlay nested hole (5), its main part direction evenly distributed along the binding clip, gullet (4) open to the occlusal direction, and its tip is provided with a spheroid (6), inlay nested hole (5) and run through the setting on the binding clip, its internal diameter and the setting of transverse process diameter matching on the centrum, the quantity of inlaying nested hole (5) is 5.

2. Vertebral body clamping forceps according to claim 1, characterized in that the direction of occlusion of the hooking teeth (4) is provided with a number of insections (7) which are evenly distributed in the direction of occlusion of the hooking teeth (4).

3. Vertebral body clamping forceps according to claim 2, characterized in that the insections (7) of the hooking teeth (4) are arranged in the direction of the body of the forceps head.

4. The vertebral body clamping forceps of claim 1 wherein the handle and the head are not on the same axis.

5. The vertebral body clamping forceps according to the claim 1, characterized in that the hook teeth (4) on the forceps head of the upper forceps handle (1) and the hook teeth (4) on the forceps head of the lower forceps handle (2) are arranged on the same side.