CN203970619U

CN203970619U - Anatomical form titanium net for cervical vertebra bone grafting operation

Info

Publication number: CN203970619U
Application number: CN201420420674.2U
Authority: CN
Inventors: 张立岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-07-29
Filing date: 2014-07-29
Publication date: 2014-12-03
Anticipated expiration: 2024-07-29

Abstract

Anatomical form titanium net for a kind of cervical vertebra bone grafting operation, comprises tubular main body, and the upper surface of main body and lower surface are all downward-sloping from left to right, and the perisporium of main body is provided with multiple cinclides, and main body outer wall is provided with the easy trimming of dissection of many differing tilt angles.Convenient like this titanium net is cut into appropriate length, is suitable for the shape of terminal plate of vertebral body anatomical angulation.This structure longitudinally has the curvature that is suitable for cervical vertebra, is applicable to the physiology lordosis of cervical spine in normal; The 120 routine cervical vertebra statistical datas that undertaken by me, the end face of titanium net, easily cut trace and have 5 degree～15 degree to be suitable for the angle that terminal plate of vertebral body is dissected; There is hydroxyapatite coating layer titanium net metal surface, and the basic structure of hydroxyapatite and skeleton is similar, and osseous tissue this coating of can growing into, that is to say that titanium net can grow up to one with neck bone, avoids sedimentation and the displacement of titanium net.Can improve cervical operation curative effect, reduce the complication of cervical operation.

Description

Anatomical form titanium net for cervical vertebra bone grafting operation

Technical field

This utility model relates to medical equipment, relates in particular to a kind of cervical vertebra bone grafting operation anatomical form titanium net.

Background technology

Cervical spondylosis, fracture-dislocation of cervical spine are commonly encountered diseases, frequently-occurring disease, and severe patient needs operative treatment.When 2 sections cervical vertebras have disease surgery, need to be by most of cervical vertebral body central authorities excision, namely technical term said " Subtotal vertebrectomy for treatment ", to reach the thoroughly object of decompression of canalis spinalis.After excision, in order to rebuild the firm of cervical vertebra, need bone-graft fusion, conventional way was to cut autologous bone in the past, as ilium, fibula etc.The autologous bone cutting is implanted in the post-decompression groove of vertebral resection, and after the several months, institute's plant bone mass merges with upper and lower and periphery neck bone, recovers the stability of cervical vertebra.But cut autologous bone, many operative sites, have increased an otch, and may there be the untoward reaction such as pain, infection, function limitation in Gong Gu district.

At present, some medical apparatus and instruments producers both at home and abroad, have produced a kind of bone grafting titanium net, be to make tubular with titanium, perisporium is designed with multiple holes, so that osseous tissue is grown into, when use, the titanium net of clip appropriate length, the broken bone of vertebral body that decompression is taken off is inserted in the tubular space of titanium net, become a broken bone complex of cylindrical titanium net, replace autologous bone, implant in the rear neck bone groove of decompression, surrounding blood vessel is grown in broken bone gradually, broken bone merges with Peripheral Bone gradually, reaches the object that autologous bone merges.

Existing titanium net adds broken bone bone grafting existent defect: such as cervical vertebra has curvature, vertebral body top and bottom and longitudinal axis also have certain angle, can be now titanium net be on the market straight, just cylinder, the grid of titanium net is also flat, be difficult to cut cervical vertebra and dissect required inclined plane shape, titanium is online, lower surface is not suitable for upper and lower terminal plate of vertebral body, very little with cervical vertebra contact surface, or is point-like and contacts, there will be titanium net to be absorbed in vertebral bone, be sedimentation, also there will be the displacement of titanium net, do not merge, need to again perform the operation, increase a lot of miseries, also increase medicine spending to patient.Therefore the upper and lower side of titanium host body of the prior art is all provided with fixed cover or other and makes the gasket construction of its surfacing, as the patent No. a kind of titanium netty bone grafting fusion device that is 201120406488.X, in its structure, the online lower end of titanium is designed with gasket construction, increase and soleplate contact area like this, facilitate titanium net to shear, but increase a lot of costs, titanium net expensive because increasing part, cause patient to be difficult to accept, be difficult to universal use.

Utility model content

This utility model will solve the problem that above-mentioned prior art exists, and a kind of cervical vertebra bone grafting operation anatomical form titanium net is provided, simple in structure, better fixing with human vertebra.

This utility model solves the technical scheme that its technical problem adopts: anatomical form titanium net for this cervical vertebra bone grafting operation, comprise tubular main body, main body perisporium is provided with cinclides, the upper surface of main body and lower surface are all downward-sloping from left to right, and main body outer wall is provided with the easy trimming of dissection of differing tilt angles.The upper and lower end face that so just can cut out according to the easy trimming of dissection differing tilt angles, the end face surface after cutting is smooth.

For further perfect, cinclides is tilt distribution, dissects easy trimming through cinclides.Cinclides adopts flat shape, dissects easy trimming along cinclides, and when cutting, along cinclides, cutting is very easy to like this.

For further perfect, cinclides is longitudinally distribution side by side, is provided with the easy trimming of dissection of at least two differing tilt angles between upper and lower cinclides.This sound construction, the position of reasonable layout cinclides, and easy dissection trimming is distributed between upper and lower cinclides, be convenient to cutting.

Further perfect, to dissect easy trimming and be distributed on main body outer wall, described cinclides is distributed in dissects between easy trimming.The easy trimming of dissection in this structure distributes tightr, is convenient to control the cutting of titanium net length, and reaches Len req.

Dissect and on easy trimming, have cutting hole.When along the easy trimming cutting titanium net of dissection, shears head is first penetrated to cutting hole like this, be convenient to cutting titanium net.

The easy trimming of dissection angle of inclination on main body outer wall is 5-15 degree.The observation of the measurement of human cervical spine anatomical angulation and vertebra shape, the epimere cervical vertebra longitudinal axis and soleplate are 10 degree angles, degree～15, and the upper surface of titanium net will match with it; The hypomere cervical vertebra longitudinal axis and soleplate are 5 degree～10 degree, and the lower surface of titanium net will match with it.The angle of inclination of the upper surface of main body is 15 degree, and the angle of inclination of lower surface is 5 degree.Main body perisporium has many to dissect easy trimming, and the easy trimming of dissection of upper end is approximate parallel with upper surface, is 15 degree with the longitudinal axis, and the easy trimming of dissection of lower end is approximate parallel with lower surface, is 5 degree angles with the longitudinal axis.Can conveniently cut out like this anatomical form titanium net that is applicable to the required large low-angle of patient and length.

The spacing of dissecting easy trimming is 1～3mm.This can finely tune the length of titanium net during to the cutting of titanium net.

Better fixing in order to make between titanium net and vertebra, body surfaces scribbles hydroxyapatite layer.The basic structure of hydroxyapatite and skeleton is similar, and osseous tissue this coating of can growing into, that is to say that titanium net can grow up to one with neck bone, avoids sedimentation and the displacement of titanium net.

Because human vertebra is to be certain arc-shaped bend, therefore main body is convexly curved to the right.Titanium host body is placed in vertebra like this, has more perfectly and coordinates with vertebra.

The effect that this utility model is useful is: 1) have the curvature that is suitable for cervical vertebra, be applicable to all physiology lordosis of cervical vertebra normal person; 2) the 120 routine cervical vertebra statistical datas that undertaken by me, the intercepting face of titanium net and longitudinally between have and be suitable for the angle of dissecting; 3) titanium net perisporium has many and the easy trimming of the approximately parallel dissection in upper surface and lower surface.4) there is hydroxyapatite coating layer titanium net metal surface, and the basic structure of hydroxyapatite and skeleton is similar, and osseous tissue this coating of can growing into, that is to say that titanium net can grow up to one with neck bone, avoids sedimentation and the displacement of titanium net.Can improve cervical operation curative effect, reduce the complication of cervical operation.

Brief description of the drawings

Fig. 1 is the structural representation of this utility model first kind of way;

Fig. 2 is the structural representation of this utility model second way;

Fig. 3 is the structural representation of the third mode of this utility model;

Fig. 4 is the structural representation of this utility model upper surface.

Description of reference numerals: main body 1, upper surface 1-1, lower surface 1-2, cinclides 2, dissects easy trimming 3, cutting hole 3-1, hydroxyapatite layer 4.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Shown in accompanying drawing 1, in the present embodiment, anatomical form titanium net for cervical vertebra bone grafting operation, comprises tubular main body 1, and the perisporium of main body 1 is provided with cinclides 2, the upper surface 1-1 of main body 1 and lower surface 1-2 are all downward-sloping from left to right, and main body 1 outer wall is provided with the easy trimming 3 of dissection of differing tilt angles.Cinclides 2 is tilt distribution, dissects easy trimming 3 by 2 of cinclides.

As shown in Figure 2, cinclides 2 is longitudinally distribution side by side, is provided with the easy trimming 3 of dissection of at least two differing tilt angles between upper and lower cinclides 2.And have cutting hole 3-1 on the easy trimming 3 of dissection.As shown in Figure 3, dissect easy trimming 3 and be distributed on main body 1 outer wall, cinclides 2 is distributed in dissects between easy trimming 3.As shown in Figure 4, main body 1 surface scribbles hydroxyapatite layer 4.

The easy trimming of dissection 3 angles of inclination on main body 1 outer wall are 5～15 degree.The angle of inclination of the upper surface 1-1 of main body 1 is 15 degree, and the angle of inclination of lower surface 1-2 is 5 degree.Cinclides 2 spaced apart makes titanium host body 1 form network.Main body 1 is convexly curved to the right.

Normal cervical vertebra is convex bending forward, and body of cervical vertebra leading edge or trailing edge connect and show curve, and the vertebral body longitudinal axis (ordinate) is not vertical with vertebral body lower edge (horizontal line), generally have 5 degree～15 degree angles inclinations.After a vertebral body of cervical spondylosis excision, need to implant the cylinder that two ends tilt, namely side seems the cylinder of parallelogram, insert like this thing could with terminal plate of vertebral body close contact, to reach better fusion, implant can be autologous ilium, can be also that titanium net adds the broken bone of autologous decompression.

Although this utility model illustrates and describes by reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation in form and details.

Claims

1. an anatomical form titanium net for cervical vertebra bone grafting operation, comprise tubular main body (1), main body (1) perisporium is provided with cinclides (2), it is characterized in that: upper surface (1-1) and lower surface (1-2) of described main body (1) are all downward-sloping from left to right, and main body (1) outer wall is provided with the easy trimming of dissection (3) of differing tilt angles.

2. anatomical form titanium net for cervical vertebra bone grafting operation according to claim 1, is characterized in that: described cinclides (2) is tilt distribution, and the easy trimming of described dissection (3) is through cinclides (2).

3. anatomical form titanium net for cervical vertebra bone grafting operation according to claim 1, is characterized in that: described cinclides (2) is longitudinally distribution side by side, is provided with and dissects easy trimming (3) between cinclides (2).

4. anatomical form titanium net for cervical vertebra bone grafting operation according to claim 1, is characterized in that: the easy trimming of described dissection (3) is distributed on main body (1) outer wall, between described cinclides (2).

5. anatomical form titanium net for cervical vertebra bone grafting operation according to claim 1, is characterized in that: the easy trimming of dissection (3) angle of inclination on described main body (1) outer wall is 5～15 degree.

6. anatomical form titanium net for cervical vertebra bone grafting operation according to claim 1, is characterized in that: the angle of inclination of the upper surface (1-1) of described main body (1) is 15 degree, and the angle of inclination of lower surface (1-2) is 5 degree.

7. anatomical form titanium net for cervical vertebra bone grafting operation according to claim 1, is characterized in that: the spacing of the easy trimming of described dissection (3) is 1～3mm.

8. anatomical form titanium net for cervical vertebra bone grafting operation according to claim 1, is characterized in that: described main body (1) surfaces externally and internally scribbles hydroxyapatite layer (4).

9. anatomical form titanium net for cervical vertebra bone grafting operation according to claim 1, is characterized in that: described main body (1) is convexly curved to the right.