CN202458784U

CN202458784U - Intraosseous support frame

Info

Publication number: CN202458784U
Application number: CN2012200046891U
Authority: CN
Inventors: 余红
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-09
Filing date: 2012-01-09
Publication date: 2012-10-03
Anticipated expiration: 2022-01-09

Abstract

The utility model discloses an intraosseous support frame which comprises a conical head 1, an outer support frame 2, an inner support frame 3, an air bag 4, an elastic wire grid 5, spring leaves 6, triangular support frames 7 and an elastic pull net 8, and is characterized in that the outer support frame 2 formed by the elastic wire grid 5 is bullet-shaped, wherein the conical head 1 is arranged at the front end of the outer support frame 2 and the inner support frame 3 is arranged in the outer support frame 2; the inner support frame 3 formed by the spring leaves 6, the triangular support frames 7 and the elastic pull net 8 is bullet-shaped and interlined with the air bag 4; and the air bag 4 is a bullet-shaped rubber product. Compared with the prior art, the intraosseous support frame has the characteristics that blood supply to bones is beneficially improved, the absorption of necrotic bones and the formation of new bones are promoted, the bones are repaired, the curative effect is enhanced, the force bearing functions of the bones are improved, the structure is simple, the operation is facilitated, and the like.

Description

The bone inner support frame

One, technical field:

This utility model relates to the inner support frame that head necrosis is treated a kind of bone of usefulness.

Two, background technology:

The most effective way of treatment head necrosis is exactly the prosthetic replacement at present.But because life-span of artificial joint falls short of and postoperative can produce some complication, for young patient, especially the patient below 40 years old and being not suitable in addition, has the patient of other complication also to be restricted to some.According to China's national situation, patient is still waiting to improve to the acceptance level of this operation.

The method that is used to keep the treatment head necrosis of bone at present can be divided into four types: 1, medulla decompression; 2, the implantation of free bone, band base of a fruit bone and blood vessel; 3, various sections bones; 4, the intervention of Chinese medicine.These methods all are in order to improve the blood fortune of bone, to promote the absorption of necrotic bone and the generation of new bone, making the bone reparation.The basic pathology process of head necrosis is that the generation of new bone and the absorption of sequestrum exist simultaneously, and the outgrowth while of osteoblast when osteonecrosis is repaired, osteoclast activity also increases, and causes bone absorption.The area of new bone mechanical property of permineralization and plasticity is not lower; Between necrotic bone and the bone of living because the different stress concentration that produce of elastic modelling quantity.

Prove that after deliberation downright bad bone sequestrum descends 59%, intensity decreases 41% with the elastic modelling quantity of bone intersection osseous tissue than normal bone of living.Body biomechanics proves, when human locomotion, two peak values appear in the joint reaction force of bone, and wherein largest peaks reaches seven times of human body body weight.The powerful joint retroaction and the decline of bone mechanical property have caused bone to subside, and cause the marrow destruction of joint, finally cause deformity.Preventing that subsiding of bone from should be the center of treatment head necrosis, also is the difficult point of this disease treatment.Above Therapeutic Method is to quicken the pathological process of head necrosis, promotes the reparation of bone, can not improve capital mechanical property, perhaps can make the mechanical properties decrease of bone.If do not have good non-heavy burden protection, just do not have due therapeutic effect.

Three, summary of the invention:

The purpose of this utility model provides a kind of mechanical property of improving bone, to obtain the treatment head necrosis bone inner support frame of better curative effect is arranged.

The purpose of this utility model realizes like this: the bone inner support frame by conical head (1), support arm (2), inner support (3), air bag (4), elastic yarn graticule mesh (5), spring leaf (6), A-frame (7) and elasticity draw in the net (8) form; It is characterized in that described support arm (2) is made up of elastic yarn graticule mesh (5); Be bullet shaped; Its front end is conical head (1), is provided with inner support (3) in it; Described inner support (3) by spring leaf (6), A-frame (7) and elasticity draw in the net (8) constitute, be bullet shaped, liner air bag (4); Described air bag (4) is a rubber, is bullet shaped.

Described elastic yarn graticule mesh (5) is made up of memorial alloy, is compact compression shape under the normal condition, and the expansion back is separately outer, is latticed.

Described elasticity draw in the net (8) constitute by memorial alloy, be compact compression shape under the normal condition, the expansion back is separately outer, in the shape of a spiral shape; Be interval with A-frame (7) on it, scalable; Described A-frame (7) is provided with circular-arc spring leaf (6).

This utility model has following conspicuous advantage compared with prior art:

1, helps improving the blood fortune of bone, promote the absorption of necrotic bone and the generation of new bone, make the bone reparation;

2, therapeutic effect is improved, improve the load function of bone;

3, simple in structure, easy to operate.

Four, description of drawings:

Fig. 1 is the structural representation of this utility model bone inner support frame;

Fig. 2 is the contraction structure sketch map of this utility model inner support.

Wherein: 1, conical head 2, support arm 3, inner support 4, air bag

5, elastic yarn graticule mesh 6, spring leaf 7, A-frame 8, elasticity are drawn in the net

Five, the specific embodiment:

An optimum implementation of this utility model is: being the bone inner support frame like Fig. 1, this utility model shown in Figure 2 is drawn in the net 8 to form by conical head 1, support arm 2, inner support 3, air bag 4, elastic yarn graticule mesh 5, spring leaf 6, A-frame 7 and elasticity; It is characterized in that described support arm 2 is made up of elastic yarn graticule mesh 5; Be bullet shaped; Its front end is a conical head 1, is provided with inner support 3 in it; Described inner support 3 is drawn in the net 8 to constitute by spring leaf 6, A-frame 7 and elasticity, is bullet shaped, liner air bag 4; Described air bag 4 is a rubber, is bullet shaped.

Described elastic yarn graticule mesh 5 is made up of memorial alloy, is compact compression shape under the normal condition, and the expansion back is separately outer, is latticed.

Described elasticity draws in the net 8 to be made up of memorial alloy, is compact compression shape under the normal condition, and the expansion back is separately outer, in the shape of a spiral shape; Be interval with A-frame 7 on it, scalable; Described A-frame 7 is provided with circular-arc spring leaf 6.

Concrete operations are following:

1) percutaneous takes out a bone core to the necrotic area of bone with trepan from the bone outside with assistive device, is similar to core decompression;

2) use the sharp spoon of special long handle then, the further sharp sequestrum that removes;

3) length of measurement bone, the length of the corresponding bone inner support frame of intercepting had both guaranteed the secure support effect, did not expose outside the bone again;

4) at this moment the support arm 2 of bone inner support frame and the cavity of inner support 3 are implanted into the normal bone tissues of taking out in the bone core, screw in the bone property tunnel with the conical head 1 of special handle, and then all stretch into the bone inner support frame the bone inner support frame;

5) open air valve, give air bag 4 inflations, this moment inner support 3 elasticity draw in the net 8 receive external force air bag 4 chap, after the expansion in the shape of a spiral shape separate outward, the A-frame on it 7 is stretched out; Circular-arc spring leaf 6 on the A-frame 7 also opens outer top simultaneously;

6) after the elastic yarn graticule mesh 5 of support arm 2 receives the tension force of the circular-arc spring leaf 6 of external force, be latticed after the expansion and outer separately fix on the inner cavity surface of bone, normal bone tissues just is attached on the structure of grid or spiral and grows simultaneously;

7) because elasticity draws in the net 8 to be made up of memorial alloy with elastic yarn graticule mesh 5, can be built in after the typing in the inner chamber of bone, under the influence that does not have external force, can not shrink;

8) give air bag 4 venting at last, the air bag 4 after flat is taken out in inner support 3, promptly accomplish.

Claims

The bone inner support frame by conical head (1), support arm (2), inner support (3), air bag (4), elastic yarn graticule mesh (5), spring leaf (6), A-frame (7) and elasticity draw in the net (8) form; It is characterized in that described support arm (2) is made up of elastic yarn graticule mesh (5); Be bullet shaped; Its front end is conical head (1), is provided with inner support (3) in it; Described inner support (3) by spring leaf (6), A-frame (7) and elasticity draw in the net (8) constitute, be bullet shaped, liner air bag (4); Described air bag (4) is a rubber, is bullet shaped.
2. bone inner support frame according to claim 1 is characterized in that described elastic yarn graticule mesh (5) is made up of memorial alloy, is compact compression shape under the normal condition, and the expansion back is separately outer, is latticed.
3. bone inner support frame according to claim 1, it is characterized in that described elasticity draw in the net (8) constitute by memorial alloy, be compact compression shape under the normal condition, the expansion back is separately outer, in the shape of a spiral shape; Be interval with A-frame (7) on it, scalable; Described A-frame (7) is provided with circular-arc spring leaf (6).