CN2122602U

CN2122602U - Palisade bone case

Info

Publication number: CN2122602U
Application number: CN 92215584
Authority: CN
Inventors: 沈杨
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-19
Filing date: 1992-05-19
Publication date: 1992-11-25

Abstract

The utility model relates to a palisade bone case, which is made of a net plate crimped by a plurality of longitudinal palisades and lateral palisades, wherein, the longitudinal palisades and the lateral palisades are blanked by a memory alloy with a certain thickness. The palisade bone case is annular or triangular. The utility model makes use of the characteristics that memory alloy can change shapes under different temperatures, so that both ends of the fracture section can be firmly fixed by the bone case. Compared with ordinary steel plates, screws, and marrow nails, the utility model has the advantages of convenient and safe fixation, less pain for patients, and fast fracture healing.

Description

Palisade bone case

This utility model relates to a kind of paliform synthetism cover that is used for fractures.

In the prior art, treatment of fractures is continued to use the fixture as knochenbruch such as steel plate screw or intramedullary pin always.The employing steel plate screw is fixed, and fracture site is to be subjected to eccentric force, easily produces either large or small knochenbruch gap, the fine motion that fracture end generation tension force and pressure are replaced is difficult to healing, the asynechia of bone, make steel plate bear whole stress, be prone to the atrophy and the fatigue of bone, cause fracturing once more.Adopt intramedullary pin, need making the cortical bone fluting away from fracture end, and fully filling of intramedullary pin, to adapt to medullary cavity, just can reach fixation, so big to tissue injurys such as perimyelis; The medullary cavity plucked makes intramedullary pin be difficult to intimate engagement; The anti-turning effort of intramedullary pin is poor, a little less than the shearing resistance, and the nonreactive centrifugation.More than two kinds of methods, after operation the plaster fixation time all longer, and could begin functional exercise after will waiting the basic healing of fracture, so convalescence is long.Some new fracture fixation methods had appearred in recent years, as pressed nail, and forked nail, Carnis Rapanae thomasianae shape bolt balls etc. are the improvement to out-of-date methods, but substantial breakthrough are not all arranged that essence does not overcome original shortcoming.

It is a kind of safe and convenient to use that the purpose of this utility model is to provide, and damages for a short time, the paliform synthetism cover that adhesion is big, healing stage is short.

In order to achieve the above object, this utility model adopts following technical proposals: this synthetism cover is a kind of paliform, the cohesion style synthetism cover of band memory character, and it has an opening part, two incision ends, several vertical grid, two end hurdles, several horizontal bars.It is characterized in that one smooth, certain thickness memorial alloy plate is arranged, stamping-out removes big portion plate, forms a web plate that is made of several vertical grid and several horizontal bars, bends into a synthetism cover of the garden ring-type or the isoceles triangle shape of opening from being parallel to vertical grid bearing volume then.Vertical grid are uniform and parallel to each other, and horizontal (end) hurdle is all perpendicular to vertical grid and uniform.

During use, elder generation exposes fracture site and resets, the paliform synthetism is mounted in 0 ℃～5 ℃ the frozen water, the synthetism cover opening that low temperature is formed marmem increases, when opening greater than the folding bone outer through the time, it is enclosed within on the fracture segment, apply in synthetism with 37 ℃～60 ℃ saline gauze then and put, synthetism cover promptly can return to original shape, and opening is received little, it just tightly obvolvent firmly roll over two end backbones of bony site.Because the equilibrium of synthetism cover is shunk, and does not have angular force, stressed evenly combination is close at folding bone place, easily restores to the original state, and healing stage obviously shortens.

Because the bone shaped of human body, thickness are all different, the data that can provide according to anatomy, design dissimilar, different sizes, the synthetism cover of different length is for needs.

This utility model compared with prior art, advantage is obvious.Owing to utilize the altitude temperature difference effect of memorial alloy, the contraction cohesive force is big; Synthetism cover volume is little; Remove punching from, twisted screw, formalities such as cortical bone incision, the formality time is short, and patient's misery is little, and is easy for installation, safety; Because folding bone place previous status again well, can implement functional exercise in advance after the place's formality of folding bone, patient's healing stage is short.

The drawing explanation of accompanying drawing:

Fig. 1～Fig. 4 is the cyclic four kinds of embodiment structural representations in this utility model garden.

Fig. 5～Fig. 7 is three kinds of embodiment structural representations of this utility model isoceles triangle shape.

A kind of garden of the present utility model ring-type embodiment is: referring to Fig. 1～Fig. 4, and the 1st, the opening part of synthetism cover, it is less than the diameter D of garden ring, and the size of D is 6～40mm.α is the big or small angle of opening, is 35 °～60 °.2 is two incision ends, and its head all becomes tip shape, is the surrounding tissue of being convenient to cut bone in order to use, reduces patient's misery.The 3rd, vertical grid have 3～4 according to size.4 is two end hurdles.The 5th, horizontal bar has 0～3 according to the length by the bone cover.The 6th, the longitudinal axis of synthetism cover.The length L of synthetism cover is 20～120mm, and its material thickness δ is 1～3mm.

Another kind of isoceles triangle shape embodiment of the present utility model is: referring to Fig. 5～Fig. 7, its top angle β is 30 °～70 °, and other sized datas and embodiment 1 are similar.

Claims

1, a kind of paliform shape memory cohesion style synthetism cover includes 1, two incision end 2 of an opening part, several 3, two end hurdles 4 of vertical grid, and several horizontal bars 5 is characterized in that vertical grid and end hurdle and horizontal bar form a whole; Uniform and 6, two the end hurdles of longitudinal axis that be parallel to synthetism cover of several vertical grid are in synthetism and overlap axial two ends; Several horizontal bars are uniform and parallel to each other with two end hurdles; Hold hurdle and horizontal bar all to become the garden ring-type or the isoceles triangle shape of opening, form the opening part 1 that synthetism is overlapped on longitudinal axis, two ends of opening part form two incisions and hold 2; The central authorities that its opening part 1 is in the base are overlapped in the synthetism of isoceles triangle shape.

2, synthetism cover according to claim 1, its feature are that also it is 6～40mm that its diameter D is overlapped in the cyclic synthetism in garden, and the big or small angle α of opening is 35 °～60 °; It is 30 °～70 ° that its drift angle angle β is overlapped in the synthetism of isoceles triangle shape; The length L of synthetism cover is 20～120mm; The vertical grid number of synthetism cover is 3～4; The horizontal bar number of synthetism cover is 0～3; The wall thickness of synthetism cover is δ 1～3mm.

3, synthetism cover according to claim 1, its feature also are the head of two incision ends 2, all become tip shape.