CN208435758U - For fixing the novel fixing device of anterior cervical vertebrae titanium net - Google Patents

Abstract

It is a kind of for fixing the novel fixing device of anterior cervical vertebrae titanium net, top mounting subassembly and lower fixation kit include annular body, it is fixed in annular body that there are three cushion blocks, first cushion block is placed in centrum front dead center position, second and third cushion block be placed on rear side of the first cushion block, the first cushion block is equipped with locking screw hole；Each cushion block two sides of the bottom of top mounting subassembly are fixed with clamp and form slot, two sides are fixed with clamp and form lower slot at the top of each cushion block of lower fixation kit, titanium net top is provided with upper groove corresponding with the cushion block of top mounting subassembly, titanium net bottom end is provided with lower groove corresponding with the cushion block of lower fixation kit, the top of titanium net wears the annular chamber of top mounting subassembly, each cushion block of top mounting subassembly is embedded in corresponding upper groove, titanium net is inserted into upper slot, titanium net bottom end wears the annular chamber of lower fixation kit, each cushion block with fixation kit at present is embedded in corresponding lower groove, titanium net is inserted into lower slot, two lock screw difference centrums and locking locking screw hole.

Description

For fixing the novel fixing device of anterior cervical vertebrae titanium net

Technical field

The utility model relates to the field of medical instrument technology, more particularly to a kind of for fixing the new of anterior cervical vertebrae titanium net Type fixes device.

Background technique

Anterior approach vertebra corpectomy art is to treat the common art formula of cervical spondylosis and Cervical Spinal Cord Injuries.Anterior approach centrum time is complete It cuts and usually requires self-iliac bone grafting or titanium net bone grafting in art art, promote intervertebral fusion.Since self-iliac bone grafting art usually goes out The area Xian Gonggu chronic ache is the complication such as belt pain, stair activity pain, infection, in some instances it may even be possible to occurs for the huge hemotoncus in bone area, Threat to life and some patientss are unsatisfied with to for bone area shape, influence to live.Anterior cervical vertebrae titanium net is cut in anterior cervical vertebrae centrum Remove, titanium net can reach stabilization at once in the operation of titanium net bone grafting vertebral body reconstruction, therefore with more next in vertebra corpectomy art It is more, received by numerous spinal surgeons, but this technology still has complicated by postoperative titanium net and loosens, slides or even fall off Etc. complication, anterior cervical titanium mesh bone grafting long-term postoperative often occur titanium net sinking, it is interior it is fixed loosen, or even generate neurosis again Shape leads to operative failure, and seriously affecting patients ' life quality serious person and injuring spinal cord causes to paralyse.

Although have at present the fixed device of 3D printing technique personalized designs band titanium net and various gaskets, 3D printing skill Art personalized designs somewhat expensive, can not popularization and application；With the fixed titanium net for preventing titanium net from loosening sinking of screw, there are before obstruction The defect of the fixation of road bone plate；Applying for various gaskets is unable to reach stable fixed function in clinical application, therefore, design one The postoperative fixation device for preventing titanium net at a specified future date and sinking of kind anterior cervical decompression, can significantly reduce such postoperative long term risk, have There are important Practical significance and social economic value.

Utility model content

The utility model is in view of the problems of the existing technology and insufficient, provides a kind of for fixing anterior cervical vertebrae titanium net Novel fixing device prevents titanium net from loosening, reduces the potential risk of operation.

The utility model is to solve above-mentioned technical problem by following technical proposals:

The utility model provide it is a kind of for fixing the novel fixing device of anterior cervical vertebrae titanium net, it is characterized in that, packet A top mounting subassembly, a titanium net, once fixation kit and two lock screws are included, the top mounting subassembly and the lower fixation kit are equal Including an annular body, the annular chamber that the inner ring and outer rings of the annular body are formed is hollow, in the annular body there are three fixations Cushion block, wherein the first cushion block is placed in centrum front dead center position, the second cushion block and third cushion block are placed on rear side of first cushion block, this Locking screw hole is offered on one cushion block；

The two sides of the bottom of each cushion block of the top mounting subassembly are respectively fixed with clamp to form upper slot, and this lower fixed group The top two sides of each cushion block of part are respectively fixed with clamp to form lower slot, and the top of the titanium net offers and fixation on this The one-to-one upper groove of the cushion block of component, the bottom end of the titanium net offer with the cushion block of the lower fixation kit it is one-to-one under Groove, the top of the titanium net wears the annular chamber of the top mounting subassembly, while each cushion block of the top mounting subassembly is embedded in and corresponds to Upper groove in, which is inserted on those in slot, and the bottom end of the titanium net wears the annular chamber of the lower fixation kit, simultaneously should Each cushion block of lower fixation kit is embedded in corresponding lower groove, which is inserted into those lower slots, two lock screws Locking screw hole, centrum and the first cushion block of the lower fixation kit of first cushion block of locking centrum and the top mounting subassembly respectively Lock screw hole.

Preferably, the plane line at the center of three cushion blocks forms equilateral triangle.

Preferably, the annular body is titanium matter ring.

Preferably, the clamp is titanium matter clamp.

Preferably, the ring diameter between the inner ring and outer rings of the annular body is 2mm, the height of the annular body is 3mm.

Preferably, the height of three cushion blocks is 3mm, the cross-sectional area of first cushion block is 2mm

The cross-sectional area of × 5mm, second cushion block and the third cushion block is 2mm × 3mm.

Preferably, the clamp with a thickness of 0.5mm, diameter of slot and the lower slot is 1mm on this.

Preferably, the diameter of the locking screw hole is 2mm.

On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get the utility model respectively compared with Good example.

The positive effect of the utility model is:

1, effective contact surface between titanium net and centrum is increased, the cushion block in annular body is in equilateral triangle, Stabilising surface is formed, it is more stable.

2, titanium net can be fixed with lock screw and neighbouring centrum, prevent titanium net or more, left and right and be moved forward and backward, reached To more stable state.

3, the bone grafting contact area with adjacent vertebral is not influenced, does not influence bone grafting blood supply.

4, the stabilization of titanium net does not influence the blood supply of bone grafting area and bone graft area, gives bone grafting fusion and provides more good ring Border.

5, the installation of preceding road bone plate is not interfered.

6, using simple, do not increase surgical procedure difficulty and extend operating time.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the novel fixing device of the utility model preferred embodiment.

Fig. 2 is the structural schematic diagram of the top mounting subassembly of the utility model preferred embodiment.

Fig. 3 is the structural schematic diagram of the lower fixation kit of the utility model preferred embodiment.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all belongs to In the range of the utility model protection.

As shown in Figure 1, the present embodiment provides a kind of for fixing the novel fixing device of anterior cervical vertebrae titanium net comprising one Top mounting subassembly 1, a titanium net 2, once fixation kit 3 and two lock screws 9.

The top mounting subassembly 1 is identical with lower 2 structure of fixation kit, sees Fig. 2 and 3, the top mounting subassembly 1 and the lower fixation Component 2 includes an annular body 4, which is titanium matter ring, and the ring diameter between the inner ring and outer rings of the annular body 4 is 2mm, the height of the annular body 4 are 3mm.

The annular chamber that the inner ring and outer rings of the annular body 4 are formed is hollow, is fixed in the annular body 4 there are three cushion block, Wherein the first cushion block 5 is placed in centrum front dead center position, and the second cushion block 6 and third cushion block 7 are placed in 5 rear side of the first cushion block, this three The plane line at the center of a cushion block forms equilateral triangle, and the height of three cushion blocks is 3mm, first cushion block it is transversal Area is 2mm × 5mm, and the cross-sectional area of second cushion block and the third cushion block is 2mm × 3mm, is offered on first cushion block 5 Screw hole 8 is locked, the diameter of the locking screw hole 8 is 2mm.

The two sides of the bottom of each cushion block of the top mounting subassembly 1 are respectively fixed with clamp to form upper slot, which is Titanium matter clamp, the top two sides of each cushion block of the lower fixation kit 3 are respectively fixed with clamp to form lower slot, the titanium net 2 Top offer and offer lower solid with this with the one-to-one upper groove of the cushion block of the top mounting subassembly 1, the bottom end of the titanium net 2 Determine the one-to-one lower groove of cushion block of component 3, the clamp with a thickness of 0.5mm, diameter of slot and the lower slot is equal on this For 1mm.

The top of the titanium net 2 wears the annular chamber of the top mounting subassembly 1, while each cushion block of the top mounting subassembly 1 is embedding Enter in corresponding upper groove, which is inserted on those in slot, and the bottom end of the titanium net 2 wears the annular of the lower fixation kit 3 Chamber, while each cushion block of the lower fixation kit 3 is embedded in corresponding lower groove, in those lower slots of the titanium net 2 insertion, this two A lock screw locks locking screw hole, centrum and lower fixation kit 3 of centrum and the first cushion block of the top mounting subassembly 1 respectively The first cushion block locking screw hole.

It by the titanium matter clamp on cushion block, is pressurizeed and is fixed with sharp mouth vice, realize that slot and 2 upper and lower side of titanium net are complete up and down U.S. secure bond, the design of the first cushion block have locking screw hole, titanium net can be locked on adjacent upper hypocentrum with two pieces of lock screws, Titanium net and upper hypocentrum are fixed, stable fixation is reached.

Before installation, only traditional titanium net both ends need to be trimmed respectively into three grooves, it just can be proper by the cushion block in annular body On, it is then with vice that the clamp on cushion block is stuck, titanium net fixed in this way can effectively prevent fixation kit up and down and titanium net it Between loosening, rotate and fall off, reach steady status.

For practical various different groups, cushion block may be designed to 1 degree, 2 degree, 3 degree of the gradient, for matching the anteflexion angle of cervical vertebra Degree, facilitates clinical application.

Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence Change, but these change and modification each fall within the protection scope of the utility model.

Claims (8)

1. a kind of for fixing the novel fixing device of anterior cervical vertebrae titanium net, which is characterized in that it includes a top mounting subassembly, one Titanium net, once fixation kit and two lock screws, the top mounting subassembly and the lower fixation kit include an annular body, should The annular chamber that the inner ring and outer rings of annular body are formed is hollow, and fixed in the annular body there are three cushion blocks, wherein the first cushion block It is placed in centrum front dead center position, the second cushion block and third cushion block are placed on rear side of first cushion block, offer lock on first cushion block Determine screw hole；

The two sides of the bottom of each cushion block of the top mounting subassembly are respectively fixed with clamp to form upper slot, the lower fixation kit The top two sides of each cushion block are respectively fixed with clamp to form lower slot, and the top of the titanium net offers and the top mounting subassembly The one-to-one upper groove of cushion block, the bottom end of the titanium net offers recessed correspondingly with the cushion block of the lower fixation kit Slot, the top of the titanium net wears the annular chamber of the top mounting subassembly, while each cushion block insertion of the top mounting subassembly is corresponding In upper groove, which is inserted on those in slot, and the bottom end of the titanium net wears the annular chamber of the lower fixation kit, while under this Each cushion block of fixation kit is embedded in corresponding lower groove, which is inserted into those lower slots, two lock screws point It Suo Jin not centrum and the locking screw hole of the first cushion block of the top mounting subassembly, the lock of centrum and the first cushion block of the lower fixation kit Determine screw hole.

2. novel fixing device as described in claim 1, which is characterized in that the plane line at the center of three cushion blocks is formed Equilateral triangle.

3. novel fixing device as described in claim 1, which is characterized in that the annular body is titanium matter ring.

4. novel fixing device as described in claim 1, which is characterized in that the clamp is titanium matter clamp.

5. novel fixing device as described in claim 1, which is characterized in that the ring diameter between the inner ring and outer rings of the annular body For 2mm, the height of the annular body is 3mm.

6. novel fixing device as claimed in claim 5, which is characterized in that the height of three cushion blocks is 3mm, this first The cross-sectional area of cushion block is 2mm × 5mm, and the cross-sectional area of second cushion block and the third cushion block is 2mm × 3mm.

7. novel fixing device as claimed in claim 5, which is characterized in that the clamp with a thickness of 0.5mm, on this slot and The diameter of the lower slot is 1mm.

8. novel fixing device as described in claim 1, which is characterized in that the diameter of the locking screw hole is 2mm.