CN113288528B

CN113288528B - Bone grafting compaction forceps of lumbar fusion cage

Info

Publication number: CN113288528B
Application number: CN202110558530.8A
Authority: CN
Inventors: 田康勇; 王利君; 邬春晖; 陆吉昌
Original assignee: Shandong Weigao Orthopedic Materials Co Ltd
Current assignee: Shandong Weigao Orthopedic Materials Co Ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-11-22
Anticipated expiration: 2041-05-21
Also published as: CN113288528A

Abstract

The invention relates to the technical field of orthopedic medical instruments, in particular to a lumbar fusion device bone grafting compaction clamp. This lumbar vertebrae fuses ware bone grafting compaction pincers includes first pincers handle, the second pincers handle, fuse ware installation piece, guide rail and pushing down mechanism, first pincers handle and second pincers handle all include binding clip and handle, binding clip and the handle link of first pincers handle intersect and articulate with the binding clip and the handle link of second pincers handle, the binding clip top of first pincers handle is provided with fuses ware installation piece, fuse the ware storage tank has been seted up on the terminal surface of the binding clip of ware installation piece towards the second pincers handle, one side of fusing the ware storage tank is provided with the guide rail that just extends to the binding clip of second pincers handle perpendicular with fusing ware installation piece, the guide rail symmetry is provided with two, slide between the guide rail and be provided with pushing down mechanism, pushing down mechanism contacts with the binding clip of second pincers handle and drives along the guide rail removal through the binding clip of second pincers handle. The invention can carry out high-efficiency autologous broken bone and slag compaction on the lumbar fusion cage with different bone grafting cavity sizes.

Description

Bone grafting compaction forceps of lumbar fusion cage

Technical Field

The invention relates to the technical field of orthopedic medical instruments, in particular to a lumbar vertebra fusion cage bone grafting compaction forceps.

Background

Prolapse of the intervertebral disc is a common surgical condition of the spine. The symptoms of the intervertebral disc mainly include compression of pathological intervertebral discs on spinal cords or nerves, pain or numbness of lower limbs and even paralysis, and decompression and fusion of vertebral bodies are one of the main methods of the intervertebral operation at present. The aim of the vertebral body decompression fusion is to restore the intervertebral height, strengthen the supporting function of the front column of the vertebral column and increase the stability of the segment, and generally adopts a fusion cage to assist the vertebral body bone grafting fusion.

The lumbar vertebra fusion cage comprises a through hole, the through hole is a bone grafting cavity, autologous bone fragments are filled in the bone grafting cavity, and bone grafting fusion can be effectively improved. After that intussuseption autogenous bone disintegrating slag in bone grafting air is planted to the integration ware, need with the disintegrating slag compaction, current compaction tool adopts the manual compaction many times of cylindric instrument more, and not only compaction is inefficient, and the compaction effect is poor moreover.

Disclosure of Invention

The invention aims to provide a lumbar vertebra fusion device bone grafting compaction clamp, which overcomes the defects of the prior art, can compact self-body broken bone residues of lumbar vertebra fusion devices with different bone grafting cavity sizes, and has high compaction efficiency and good compaction effect.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a lumbar vertebra fusion device bone grafting compaction clamp comprises a first clamp handle, a second clamp handle, a fusion device installation block, a guide rail and a pressing mechanism, wherein the first clamp handle and the second clamp handle respectively comprise a clamp head and a handle, the clamp head and the handle connecting end of the first clamp handle are crossed and hinged with the clamp head and the handle connecting end of the second clamp handle, the fusion device installation block is arranged at the top of the clamp head of the first clamp handle, a fusion device accommodating groove is formed in the end face, facing the clamp head of the second clamp handle, of the fusion device installation block, one side of the fusion device accommodating groove is provided with the guide rail which is perpendicular to the fusion device installation block and extends towards the clamp head of the second clamp handle, two guide rails are symmetrically arranged, the pressing mechanism is arranged between the guide rails in a sliding mode, is in contact with the clamp head of the second clamp handle and is driven by the clamp head of the second clamp handle to move along the guide rail; during the use, place the lumbar vertebrae fusion cage in the fusion cage storage tank, pack autologous bone disintegrating slag in the bone grafting cavity of lumbar vertebrae fusion cage before placing or after placing, then merge the handle of first pincers handle and second pincers handle, the binding clip area of second pincers handle is pushed down the mechanism and is moved down this moment, pushes down the mechanism and compacts the disintegrating slag in the bone grafting cavity, and the compaction is efficient, and the compaction is effectual, can take off the lumbar vertebrae fusion cage after first pincers handle and the expansion of second pincers handle.

Furthermore, the pressing mechanism comprises a connecting block and a pressing block connected with the connecting block, the connecting block is slidably mounted between the two symmetrical guide rails, one end of the connecting block, facing the binding clip of the second clamp handle, is provided with a clamp head movable hole, and the binding clip of the second clamp handle extends into the clamp head movable hole and can move up and down and back and forth in the clamp head movable hole; the pressure head of briquetting and the bone grafting cavity position that fuses the ware of lumbar vertebrae in fusing the ware storage tank are corresponding, owing to at the in-process that first pincers handle and second pincers handle merged, the arc removal is done to the second binding clip, consequently the binding clip movable hole set up will leave sufficient front and back activity space for the binding clip of second pincers handle, the binding clip of second pincers handle pushes down and contradicts at the lower terminal surface in binding clip movable hole, it steadily moves down along the guide rail to drive the whole mechanism that pushes down for the briquetting is impressed in the bone grafting cavity of lumbar vertebrae fusion ware.

Further, connecting block and briquetting are pegged graft, have seted up the briquetting jack on the connecting block, and the briquetting is fixed through the fastener including grafting end and pressure head end after inserting the briquetting jack, and this kind of design has the briquetting of being convenient for to change for the briquetting cooperatees with the bone grafting cavity shape that needs the compacted lumbar vertebrae to fuse the ware all the time.

Further, the briquetting end includes along a plurality of pressure heads that grafting end outer wall interval set up, and every pressure head all cooperatees with the bone grafting cavity of the lumbar vertebrae fusion cage of a model, through the grafting section of rotatory briquetting for suitable pressure head is towards the bone grafting cavity of lumbar vertebrae fusion cage.

Furthermore, the top of the forceps head of the second forceps handle is flat.

Furthermore, the hinged end of first pincers handle and second pincers handle is provided with the torsional spring, and the articulated shaft of first pincers handle and second pincers handle is established to torsional spring body cover outside, and a card foot and the first pincers handle of torsional spring are connected, and another card foot is connected with the second pincers handle, and first pincers handle and second pincers handle keep "X" type state of opening automatically under the effect of torsional spring when not needing the compaction action to do benefit to and fill garrulous bone sediment and the suitable pressure head of adjustment in the bone grafting cavity of thinking lumbar vertebrae fusion cage.

The invention has the beneficial effects that: compared with the prior art, the lumbar fusion cage bone grafting compaction forceps have the following advantages: (1) The lumbar vertebra fusion cage is placed in the fusion cage accommodating groove, autologous bone broken slag is filled in a bone grafting cavity of the lumbar vertebra fusion cage before or after the lumbar vertebra fusion cage is placed, then handles of the first forceps handle and the second forceps handle are combined, the forceps head pressing mechanism of the second forceps handle moves downwards at the moment, the pressing mechanism presses the broken bone slag in the bone grafting cavity, the pressing efficiency is high, the pressing effect is good, and the lumbar vertebra fusion cage can be taken down after the first forceps handle and the second forceps handle are unfolded; (2) By rotating the insertion section of the pressing block, the proper pressing head faces the bone grafting cavity of the lumbar fusion cage, so that the best compaction effect is ensured; (3) When the compaction action is not needed, the first forceps handle and the second forceps handle automatically keep an X-shaped opening state under the action of the torsion spring, so that the bone grafting cavity of the lumbar vertebra fusion cage can be filled with broken bone residues and a pressure head suitable for adjustment.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is another perspective view of the overall structure of the present invention;

FIG. 3 is a schematic view of an explosive structure of a pressing mechanism according to the present invention;

wherein, 1 first pincers handle, 2 second pincers handles, 3 fuse ware installation piece, 4 guide rails, 5 fuse ware storage tanks, 6 lumbar vertebrae fuse ware, 7 connecting blocks, 8 briquetting, 9 binding clip activity holes, 10 grafting ends, 11 head ends, 12 fasteners.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the embodiment shown in fig. 1-3, a lumbar vertebra fusion device bone grafting compacting forceps comprises a first forceps handle 1, a second forceps handle 2, a fusion device mounting block 3, a guide rail 4 and a pressing mechanism, wherein the first forceps handle 1 and the second forceps handle 2 both comprise a forceps head and a handle, a connecting end of the forceps head and the handle of the first forceps handle 1 is crossed with and hinged to a connecting end of the forceps head and the handle of the second forceps handle 2, the fusion device mounting block 3 is arranged at the top of the forceps head of the first forceps handle 1, a fusion device accommodating groove 5 is formed in the end surface of the fusion device mounting block 3 facing the forceps head of the second forceps handle 2, one side of the fusion device accommodating groove 5 is provided with the guide rail 4 which is perpendicular to the fusion device mounting block 3 and extends towards the forceps head of the second forceps handle 2, two guide rails 4 are symmetrically arranged, the pressing mechanism is arranged between the guide rails 4 in a sliding manner, and is in contact with the forceps head of the second forceps handle 2 and is driven by the forceps head of the second handle 2 to move along the guide rail 4; during the use, in placing fuse ware storage tank 5 with lumbar vertebrae fuse ware 6, pack autologous bone disintegrating slag in the bone grafting cavity of lumbar vertebrae fuse ware 6 before placing or after placing, then merge the handle of first pincers handle 1 and second pincers handle 2, the binding clip lower pressing mechanism of second pincers handle 2 moves down this moment, the disintegrating slag compaction in the bone grafting cavity of lower pressing mechanism, the compaction is efficient, the compaction is effectual, can take off lumbar vertebrae fuse ware 6 after first pincers handle 1 and second pincers handle 2 expand.

In the embodiment, the pressing mechanism comprises a connecting block 7 and a pressing block 8 connected with the connecting block 7, the connecting block 7 is slidably mounted between the two symmetrical guide rails 4, one end of the connecting block 7, facing the binding clip of the second clamp handle 2, is provided with a clamp head movable hole 9, and the binding clip of the second clamp handle 2 extends into the clamp head movable hole 9 and can move up and down and back and forth in the clamp head movable hole 9; the pressure head of briquetting 8 is corresponding with the bone grafting cavity position that fuses 6 of lumbar vertebrae in fusing the ware storage tank 5, owing to at the in-process that first pincers handle 1 and second pincers handle 2 merge, the arc removes is done to the second binding clip, therefore the binding clip that sets up of binding clip movable hole 9 will leave sufficient front and back activity space for the binding clip of second pincers handle 2, the binding clip of second pincers handle 2 pushes down and conflicts at the lower terminal surface in binding clip movable hole 9, it steadily moves down along guide rail 4 to drive down the mechanism wholly, make briquetting 8 impress in the bone grafting cavity of lumbar vertebrae fusion ware 6.

In this embodiment, connecting block 7 and briquetting 8 are pegged graft, have seted up 8 jacks of briquetting on the connecting block 7, and briquetting 8 is fixed through fastener 12 after inserting 8 jacks of briquetting including grafting end 10 and head end 11, grafting end 10 for this kind of design has the briquetting 8 of being convenient for to be changed for briquetting 8 matches with the bone grafting cavity shape that needs compacted lumbar vertebrae to fuse ware 6 all the time.

In this embodiment, 8 ends of briquetting include along a plurality of pressure heads that 10 outer walls intervals of grafting end set up, and every pressure head all cooperatees with the bone grafting cavity of the lumbar vertebrae fusion cage 6 of a model, through the grafting section of rotatory briquetting 8 for suitable pressure head is towards the bone grafting cavity of lumbar vertebrae fusion cage 6.

In this embodiment, the top of the head of the second handle 2 is flat.

In this embodiment, the hinged end of first pincers handle 1 and second pincers handle 2 is provided with the torsional spring, and the articulated shaft of first pincers handle 1 and second pincers handle 2 is established to the torsional spring body cover outside, and a card foot and first pincers handle 1 of torsional spring are connected, and another card foot is connected with second pincers handle 2, and first pincers handle 1 and second pincers handle 2 keep "X" type state of opening automatically under the effect of torsional spring when not needing the compaction action to do benefit to and fill the garrulous bone sediment and the pressure head that the adjustment is suitable in the bone grafting cavity of thinking lumbar vertebrae fusion cage 6.

The working principle is as follows: when the lumbar vertebra fusion device bone grafting compaction forceps are used, a lumbar vertebra fusion device 6 is placed in a fusion device accommodating groove 5, an insertion section of a pressing block 8 is rotated, so that an appropriate pressing head faces a bone grafting cavity of the lumbar vertebra fusion device 6, the best compaction effect is ensured, autologous bone fragments are filled in the bone grafting cavity of the lumbar vertebra fusion device 6 before or after placement, then handles of a first forceps handle 1 and a second forceps handle 2 are combined, a forceps head lower pressing mechanism of the second forceps handle 2 moves downwards at the moment, the bone fragments in the bone grafting cavity are compacted by the lower pressing mechanism, the lumbar vertebra fusion device 6 is high in compaction efficiency and good in compaction effect, and the first forceps handle 1 and the second forceps handle 2 can be taken down after being unfolded; through the grafting section of rotatory briquetting 8 for the pressure head that suits is towards the bone grafting cavity of lumbar vertebrae fusion cage 6, ensures the compaction effect best.

The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a lumbar vertebrae fuses ware bone grafting compaction pincers which characterized in that: the fusion device comprises a first clamp handle, a second clamp handle, a fusion device mounting block, guide rails and a pressing mechanism, wherein the first clamp handle and the second clamp handle respectively comprise a clamp head and a handle, the clamp head and the handle connecting end of the first clamp handle are crossed and hinged with the clamp head and the handle connecting end of the second clamp handle, the fusion device mounting block is arranged at the top of the clamp head of the first clamp handle, a fusion device accommodating groove is formed in the end face, facing the clamp head of the second clamp handle, of the fusion device mounting block, the guide rails which are perpendicular to the fusion device mounting block and extend towards the clamp head of the second clamp handle are arranged on one side of the fusion device accommodating groove, the two guide rails are symmetrically arranged, the pressing mechanism is arranged between the guide rails in a sliding manner, is in contact with the clamp head of the second clamp handle and is driven by the clamp head of the second clamp handle to move along the guide rails; the pressing mechanism comprises a connecting block and a pressing block connected with the connecting block, the connecting block is slidably mounted between the two symmetrical guide rails, one end of the connecting block, facing the binding clip of the second clamp handle, is provided with a clamp head movable hole, and the binding clip of the second clamp handle extends into the clamp head movable hole and can move up and down and back and forth in the clamp head movable hole; the pressure head of the pressing block corresponds to the bone grafting cavity of the lumbar fusion cage in the fusion cage accommodating groove.

2. The lumbar fusion device bone grafting compaction forceps of claim 1, characterized in that: connecting block and briquetting are pegged graft, have seted up the briquetting jack on the connecting block, and the briquetting is held and the pressure head end including pegging graft, and it is fixed through the fastener after inserting the briquetting jack to peg graft the end.

3. The lumbar fusion device bone grafting compaction forceps of claim 2, characterized in that: the pressure head end includes along a plurality of pressure heads that peg graft end outer wall interval set up, and every pressure head all cooperatees with the bone grafting cavity of the lumbar vertebrae fusion cage of a model.

4. The lumbar fusion device bone grafting compaction forceps of claim 1, characterized in that: the top of the clamp head of the second clamp handle is flat.

5. The lumbar fusion device bone grafting compaction forceps of claim 1, characterized in that: the hinged end of first pincers handle and second pincers handle is provided with the torsional spring, and the articulated shaft of first pincers handle and second pincers handle is established to torsional spring body cover outside, and a calliper of torsional spring is connected with first pincers handle, and another calliper is connected with second pincers handle.