CN100420425C

CN100420425C - Vertebral column fixing reductor

Info

Publication number: CN100420425C
Application number: CNB021596395A
Authority: CN
Inventors: 叶中权
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-24
Filing date: 2002-12-24
Publication date: 2008-09-24
Anticipated expiration: 2022-12-24
Also published as: CN1509692A

Abstract

The present invention relates to a spine fixing hook and a spine fixing and restoring device. The spine fixing and restoring device comprises a fixing seat, one or a plurality of rod-shaped objects, one or a plurality of fixing hooks and one or a plurality of fixing mechanisms, wherein the fixing seat at least comprises two through holes; each fixing hook comprises a combining part and a hook part, and the combining part at least comprises a through hole. The spine fixing and restoring device is characterized in that the rod-shaped objects substantially and respectively penetrate through one through hole of the fixing seat and the through hole of the combining part of the fixing hook, and the fixing mechanisms are substantially used for fixing the rod-shaped objects which respectively penetrate through the through holes of the fixing seat and the through hole of the combining part of the fixing hook to the positions of the through holes.

Description

Vertebra fixing reductor

Technical field

The invention relates to a kind of vertebra with fixation hook and vertebra fixing reductor.

Background technology

The tradition vertebra is a hook portion with fixation hook itself, and there is integrated fixed mechanism its top, and for example the fixation hook of U.S. J.B.S company and Depuy company all contains a spiral shell fourth fixed mechanism above it; The fixation hook of U.S. AcroMed company, French Sofamor company, German PeterBrehm company, Italian G.Cremascoli company, European Biomet company, its top all contains a holder, makes itself and fixed bar be fixed into one by a screw again; And the fixation hook of U.S. Danek company then is to establish Modular holder or TSRH holder above it, is fixed on the purpose of fixed bar in order to realize it.When using these traditional vertebras to use fixation hook, to make fixed bar exceed the hook portion of fixation hook, and the fixation hook one upper fastening is higher than fixed bar, that is when utilizing these fixation hooks, will make this vertebra fixing reductor far above treating fixed vertebral segments (height of this vertebral segments is equal to the hook portion of fixation hook approximately) as the part unit of vertebra fixing reductor/assembly.This shortcoming is early denounced by medical profession, but suffers from without any solution.

So the inventor's TaiWan, China is checked and approved vertebra that novel patent stated for No. 165957 with fixation hook and vertebra fixing reductor, its fixation hook top does not contain fixed mechanism, therefore, by this vertebra with vertebra fixing reductor that fixation hook constituted, its fixed bar is equal to the height of fixation hook approximately, that is the height of whole vertebra fixing reductor, is equal to the fixation hook height approximately, that is be equal to the vertebral segments height approximately, can solve the shortcoming of traditional vertebra with fixation hook.In addition, when hooking same vertebral segments simultaneously by two fixation hooks, in traditional vertebra fixing reductor, will make structure rather complicated, and the height of whole vertebra fixing reductor is especially far above the hook portion of fixation hook, but when using fixation hook, promptly there is not above-mentioned shortcoming as the vertebra that uses this novel patent to be stated for No. 165957.

Vertebra of the present invention again is with fixation hook and vertebra fixing reductor, not only can effectively solve the puzzlement of known vertebra fixing reductor excessive height, and because of more will this former integrally formed vertebra fixation hook, be split up into a shaft and a fixation hook, so can cooperate fully under the situation of patients ' demand, have more economic scale when making production and use.

Summary of the invention

One of purpose of the present invention is to provide a kind of vertebra fixation hook.

Another object of the present invention is to provide a kind of vertebra fixing reductor.

Another purpose of the present invention is to provide a kind of vertebra fixing reductor with specific vertebra with fixation hook.

Vertebra fixation hook of the present invention, it contains a joint portion and a hook portion, and this hook portion is desired and the junction of other yuan/assembly has a joint portion, and it is characterized in that: this joint portion contains a through hole at least.

Above-mentioned hook portion, its shape can be the shape of any known orthopaedics with fixation hook, for example U-shaped hook (referring to Fig. 1) or S-hook (referring to Fig. 3).

Above-mentioned joint portion is to be integrally formed as preferable with this hook portion.Do not contain fixed mechanism on this joint portion, as fixed screw, only having one can pass the solid screw of spiral shell for a fixed screw, the mode of connection of itself and other yuan/assembly, example belongs to the combination of passive type, that is other yuan/assembly itself has and can link and the fixed mechanism of fixing shaft thing.

Vertebra fixing reductor of the present invention again, it comprises:

One holder, it contains two through holes at least;

One or a plurality of shaft;

One or the plurality of fixed hook, this fixation hook contains a joint portion and hook portion, and wherein this joint portion contains a through hole at least; And

One or plurality of fixed mechanism;

It is characterized in that: these shafts are the through holes that pass one of this holder through hole and this fixation hook joint portion in fact respectively, and these fixed mechanisms come down to usefulness so that pass the shaft of this holder through hole and fixation hook joint portion through hole respectively, are fixed on these through hole positions.

Above-mentioned holder, it is the cover tubular holder with a plurality of through holes, wherein the perforation direction of these a plurality of through holes, can be parallel to each other in fact, for example referring to Fig. 1 to Fig. 5, also can be and become a special case angle in fact, for example 90 ° of persons (referring to Fig. 6).

It can be fixed bar above-mentioned shaft, or the bar portion of any fixation kit or accessory part, for example fixed bar of vertebra fixing reductor of the present invention (referring to Fig. 1 to Fig. 6).

Above-mentioned fixation hook, described referring to the vertebra that preceding page or leaf is above-mentioned with fixation hook.

Above-mentioned fixed mechanism, it can be any known fixed mechanism, for example screws togather fixed mechanism, also can adopt other fixed mechanism certainly, routine TSRH fixed system.

For further specifying the present invention, cooperate graphic being described as follows with preferred embodiment now:

Description of drawings

Fig. 1 is a concrete example of vertebra fixing reductor of the present invention.

Fig. 2 is the enforcement figure of vertebra fixing reductor shown in Figure 1.

Fig. 3 is two vertebras are S shape with the hook portion of fixation hook a sketch map.

Fig. 4 is the shape sketch map of vertebra with fixation hook.

Fig. 5 is the shape sketch map of vertebra with fixation hook.

Fig. 6 is the shape sketch map of vertebra with fixation hook.

The specific embodiment

Fig. 1 is a concrete example of vertebra fixing reductor of the present invention, wherein 100,100 ' respectively is a vertebra fixation hook, 110,110 ' and 150,150 ' be respectively its hook portion and joint portion, 111,111 ', 112,112 ', 113,113 ' be respectively hook portion 110,110 ' hook end, bending section and link, 151,151 ' be joint portion 150,150 ' through hole, this vertebra is with fixation hook 100,100 ' be into U-shaped.

The shape of hook portion also can be class U-shaped (for example Fig. 4, Fig. 5, hook portion shown in Figure 6), or S shape (hook portion for example shown in Figure 3), or other known form.

Vertebra in addition of the present invention with fixation hook 100,100 ', cooperate the vertebra fixing reductor of holder 200, fixed mechanism and fixed bar 400,400 ' constituted; Wherein 110,110 ' be respectively the hook portion of two vertebras with fixation hook, 150 and 150 ' be respectively the joint portion of two vertebras with fixation hook, 400,400 ' be respectively the fixed bar of two shafts; 210 and 220 are the through hole on the holder 200,310 and 320 for constituting the fixed screw of a fixed mechanism part, with so that two shafts 400,400 ' be fixed on the holder, 330 and 340 is the fixed screw of another part of this fixed mechanism, with so that two vertebras be fixed on these shafts with fixation hook.

Fig. 2 is the enforcement figure of vertebra fixing reductor shown in Figure 1, wherein label 150,150 ', 200,310,320,330,340,400,400 ' define same Fig. 1; 510 and 520 is vertebral segments.Its fixed form, be the fixed bar 400,400 of adjusting earlier two shafts ', make its meet in fact vertebral segments 510,520 apart from length, and these fixed bars are fixed on the holder 200 with fixed screw 310,320, again with two vertebras with fixation hook 100,100 ', be set on these fixed bars, and adjust make it fixedly hook

vertebral segments

510 and 520 after, with fixed

screw

330 and 340 two vertebras are fixed on the fixed bar with fixation hook at last.

Fig. 3 is Fig. 1 roughly the same, and being two vertebras is S shape with the hook portion of fixation hook, wherein the same Fig. 1 of each label definition.

Fig. 4 is by the vertebra fixation hook among a fixed bar 400 ' replacement Fig. 1, and all the other are Fig. 1 roughly the same all.

Among Fig. 5, all same Fig. 1 of each label definition.By two fixation hooks, three fixed bars 400,400 ', 400 ", a holder and 310,315,320,330,340 formations of five fixed screws; among Fig. 5; respectively this fixed bar in fact all at grade, and these two fixation hooks are to hook same vertebral segments.

Fig. 6 is Fig. 5 roughly the same, the also same Fig. 5 of each label definition, but among Fig. 6, two vertebras are parallel to each other in fact with fixation hook, but the fixed bar of shaft then in fact not two vertebras with the plane that fixation hook constituted on, and parallel in fact with this plane, and this fixed bar constitutes projection on the plane at two vertebras with fixation hook, and orthogonal with this two vertebra in fact with fixation hook.

Claims

1. vertebra fixing reductor comprises:

One holder, it contains two through holes at least;

One or more shaft;

One or more fixation hook, this fixation hook contains a joint portion and hook portion, and wherein this joint portion contains a through hole at least; And

One or more fixed screw;

It is characterized in that: these shafts are to pass a through hole of this holder and the through hole of this fixation hook joint portion respectively, and these fixed screws are usefulness so that pass the shaft of this holder through hole and fixation hook joint portion through hole respectively, are fixed on these through hole positions.

2. vertebra fixing reductor as claimed in claim 1, wherein this shaft is with deciding bar.

3. vertebra fixing reductor as claimed in claim 1 or 2 is characterized in that: the hook portion of this fixation hook is U-shaped, S shape, class U-shaped or class S shape.