CN1306912C

CN1306912C - Intervertebral pulling off reset device

Info

Publication number: CN1306912C
Application number: CNB021223637A
Authority: CN
Inventors: 颜宗宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-17
Filing date: 2002-06-17
Publication date: 2007-03-28
Anticipated expiration: 2022-06-17
Also published as: CN1463680A

Abstract

The present invention relates to an intervertebral supporting resetting device. The present invention comprises a plurality of supporting seats, a plurality of supporting disks and a spiral combination mechanism, wherein each supporting disk is provided with two opposite side walls and a back wall which is connected with the side walls, and a transverse rod is connected with the apical margin of the side wall to which the back wall corresponds; each back wall is essentially penetrated with a combining groove and a clamping groove, and the supporting seats can be essentially movably sheathed in pairs so that the complete combining groove can be matched between each two back walls; each supporting disk is provided with a top surface and a bottom surface, and the bottom surface is provided with a clamping mechanism; in essence, the supporting disks are clamped on the transverse rods and in the clamping grooves of the supporting seats in pairs through the clamping mechanisms of the bottom surfaces so that the supporting disks are combined with the supporting seats; the spiral combination mechanism can be essentially spirally combined with the combining grooves after supporting seats match.

Description

Intervertebral pulling off reset device

Technical field

The invention relates to a kind of intervertebral pulling off reset device.

Background technology

Existing vertebra struts the rectification equipment, as (the Spinal of U.S. spinal correction equipment company; Orthopedic Devices, Inc.) spinal correction fixture, it is one to be used to adjust the device of intervertebral distance, props up protruding nail by plural number of its device upper and lower end, to wait to correct upper and lower two ends of fixed vertebral segments and strut certain distance, and make this vertebra obtain to support and reset; Or novel the 0 nine eight nine four No. eight " a kind of intervertebral fixation device " patent case of the TaiWan, China that another kind of the application's related invention people proposed etc., be and be applied to vertebra and rescue the device that support fixation resets.

But above-mentioned various vertebras strut fixating repositor, all there is not the surface of considering the vertebra vertebral body, be for having the surface of an arc radian, and in spinal treatment operation, as when taking out the vertebral segments of a pathological changes, preferably except that the intervertebral pulling device of packing into, also to be packed into the sclerotin implant, in order to the fusion and the recovery of this vertebral segments, but existing spendable vertebra pulling off reset device (replacement-device) all can't reach above-mentioned effect.

After so the application's related invention people formerly proposes novel the 0 nine eight nine four No. eight patent case of TaiWan, China " a kind of intervertebral fixation device ", again in this type of intervertebral pulling device (replacement-device), consider the radian on vertebral body surface and can fill sclerotin implant etc., improve out the present invention's " a kind of intervertebral pulling off reset device ".

Summary of the invention

One of purpose of the present invention is to provide a kind of intervertebral pulling off reset device.

Another object of the present invention is to provide a kind of intervertebral pulling off reset device that a plurality of supporting seats, a plurality of supporting disk and screw togather mechanism that has.

Another purpose of the present invention, be to provide a kind of cross bar and draw-in groove of these supporting seats, the joining that reaches an extension line of these supporting disk end faces and bottom surface is has an angle, make that supporting disk can be adjusted the intervertebral pulling off reset device of 0 degree to 10 degree angles about it after this intervertebral pulling off reset device installation.

A further object of the present invention is to provide a kind of these supporting disks and supporting seat to be equipped with one or a plurality of perforation, can make that these supporting seats are inside and outside to connect, and can be packed into this sclerotin implant, promotes vertebral segments to merge and restorative intervertebral pulling off reset device.

A kind of intervertebral pulling off reset device of the present invention, it comprises:

A plurality of supporting seats, it all has two relative sidewalls, an and rear wall that is connected with these sidewalls, and corresponding these sidewall apical margins of this rear wall then have a cross bar and are connected, this rear wall in fact all is equipped with an engagement groove and a draw-in groove, these supporting seats are can to close by two biphase movable sleeves in fact, make the complete engagement groove that can match out between this rear wall;

A plurality of supporting disks, have an end face and a bottom surface, this bottom surface has a snap fastener, and these supporting disks are in fact with the snap fastener of this bottom surface, be fastened on relatively in twos in the cross bar and draw-in groove of these supporting seats, make these supporting disks combine in fact with these supporting seats;

One screws togather mechanism, and it is that the engagement groove that can match with these supporting seats in fact after complete is screwed;

It is characterized in that: the cross bar of these supporting seats and draw-in groove, and the joining of an extension line of these supporting disk end faces and bottom surface, be to be in fact to have an angle, after making that these supporting disks and supporting seat fasten, an extension line joining of these intervertebral pulling off reset device two relative supporting disk end faces can be had the angle of 0 degree to 10 degree in fact.

Above-mentioned intervertebral pulling off reset device, wherein these supporting seats are to can be a upper support seat in fact to reach supporting seat, these upper and lower supporting seats come down to by its biphase symmetric sidewall, and the merging that is nested movably screws togather mechanism with this again makes it in conjunction with fixing.

Above-mentioned intervertebral pulling off reset device, wherein these supporting disks are to can be a upper support dish in fact to reach supporting disk, these upper and lower supporting disks come down to the combining mechanism by its bottom surface, combine relatively and with these supporting seats in twos.

Above-mentioned intervertebral pulling off reset device, wherein these upper and lower supporting disks are in fact more to be provided with one or a plurality of perforation, these perforation can make these supporting disks combine with supporting seat and connect.

Above-mentioned intervertebral pulling off reset device, the combining mechanism of these upper and lower supporting disk bottom surfaces wherein, be to be essentially one or a plurality of trip, these trips can be hooked between the sidewall of these upper and lower supporting seats in fact, make these supporting disks can combine fixing with supporting seat.

Above-mentioned intervertebral pulling off reset device, wherein this screws togather mechanism and can be a screw in fact, and the engagement groove that these supporting seats match after complete also has more a nut, and this screw and nut then can screw togather fixing in fact.

Above-mentioned intervertebral pulling off reset device, the end face of this upper and lower supporting disk wherein respectively has more one or a plurality of projection, and this vertebral segments surface can be inserted or be engaged in to these projectioies in fact.

Above-mentioned intervertebral pulling off reset device can be any material in fact, but can compatible material be preferable with the human body that meets the ASTM standard, as 316TL stainless steel alloy or Ti6Al4V titanium alloy etc.

So-called upper and lower among the present invention, top, the end etc., be meant between the intravital vertebral segments of this intervertebral pulling off reset device implant patient after, the direction of head was last or the top when patient stood, on the contrary its foot is then for down or the end; And so-called forward and backward, the place ahead, rear then are meant this intervertebral pulling off reset device when mounted, in the face of the direction of carrying out the doctor who performs the operation is preceding or the place ahead, otherwise then are back or rear.

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

Description of drawings

Fig. 1 a and Fig. 1 b are the three-dimensional forward sight and the schematic rear view of intervertebral pulling off reset device preferred embodiment of the present invention.

Fig. 2 a and Fig. 2 b are the decomposing schematic representation of this intervertebral pulling off reset device.

Fig. 3 is a plurality of supporting seat phase fit schematic perspective views of this intervertebral pulling off reset device.

After Fig. 4 a to Fig. 4 c was this intervertebral pulling off reset device installation, rectification that this supporting disk is adjustable became the sketch map of angle.

Reference numeral

100 intervertebral pulling off reset device, 110 upper support seats

120 lower support seats 130 screw togather mechanism

140 upper support dishes, 150 lower support dishes

111 sidewalls, 112 rear walls

113 cross bars, 114 engagement grooves

115 draw-in grooves, 121 sidewalls

122 rear walls, 123 cross bars

124 nuts, 125 projectioies

126 draw-in grooves, 131 screws

141 end faces, 142 bottom surfaces

144 perforation of 143 snap fasteners

151 end faces, 152 bottom surfaces

154 perforation of 153 snap fasteners

The specific embodiment

Fig. 1 a and Fig. 1 b are the forward sight and the rearview of a preferred embodiment of intervertebral pulling off reset device of the present invention, wherein 100 is an intervertebral pulling off reset device, 110 is a upper support seat of this resetting means 100,120 is the supporting seat of this resetting means 100,130 is that one of this resetting means 100 screws togather mechanism, 140 is a upper support dish of this resetting means 100,150 is the supporting disk of this resetting means 100, these upper support dishes 140, lower support dish 150 is first in fact and these upper support seats 110, after lower support seat 120 fastens, this upper support seat 110 again with these lower support seat 120 movable fits mutually, and biphase be adjusted to applicable position and distance after, screw togather with this that mechanism 130 screws togather at last and fixing.

Among Fig. 2 a and Fig. 2 b, respectively this component Name is all identical with Fig. 1 two figure with the definition of this assembly labelling respectively; Among these Fig. 2, upper support seat 110 all has one or two relative sidewall 111, these sidewalls 111 vertically are connected with a rear wall 112 again, and corresponding sidewall 111 tops of this rear wall 112 also have a cross bar 113 to be connected, make this upper support seat 110 form the structure of a shape, and be equipped with an engagement groove 114 and a draw-in groove 115 on this rear wall 112 again, and an extension line joining of this cross bar 113 (or rear wall apical margin) and this draw-in groove 115 then has an angle (about 2.5 degree are for preferable) (shown in Fig. 2 a, the 2b).

This lower support seat 120 also has one or two relative sidewall 121, and the rear wall 122 that vertically is connected with these sidewalls 121, sidewall 111 bottoms of these rear wall 122 opposite sides also have a cross bar 123 to be connected, this lower support seat 120 equally also forms the structure of a shape, and then be provided with a nut 124 on this rear wall 122, one or an a plurality of projection 125 and draw-in groove 126 (Fig. 1 b) that increases frictional force, 124 on this nut in fact just can match with engagement groove 114 positions of these upper support seat 110 rear walls 112 and screw togather, these projectioies 125 can increase this upper support seat 110 in fact, friction crystallized ability behind the lower support seat 120 biphase fits, and an extension line joining of this cross bar 123 (or rear wall root edge) and this draw-in groove 126, then have an angle (about 2.5 degree are for preferable).

Among these Fig. 2, then all having a screw 131 can be in fact with behind these upper support seats 110, the lower support seat 120 phase fit, pass the engagement groove 114 of these upper support seat 110 rear walls 112, and spiral shell is solid in the nut 124 of these lower support seat 120 rear walls 122, makes this upper support seat 110, lower support seat 120 combine fixing.

140 on this upper support dish has an end face 141 and a bottom surface 142 in fact, this end face 141 has a plurality of projectioies, 142 of this bottom surfaces are provided with a snap fastener 143,143 of this snap fasteners can be fastened in the cross bar 113 and draw-in groove 115 of this upper support seat 110, make this upper support dish 140 be fixed togather with this upper support seat 110, this upper support dish 140 is equipped with a perforation 144 again, and an extension line joining of these upper support dish 140 end faces 141 and bottom surface 142, for having an angle (about 2.5 degree are for preferable) (shown in Fig. 2 b).

150 on this lower support dish is identical with this upper support dish 140, but turn upside down, it also has an end face 151 and a bottom surface 152, this end face 151 has a plurality of projectioies, 152 of this bottom surfaces are provided with a snap fastener 153,153 of this snap fasteners can be fastened in the cross bar 123 and draw-in groove 126 of this lower support seat 120, make this lower support dish 150 be fixed togather with this lower support seat 120, this lower support dish 150 is equipped with a perforation 154 again, and an extension line joining of these lower support dish 150 end faces 151 and bottom surface 152, then for having an angle (about 2.5 degree are for preferable) (shown in Fig. 2 b).

Among Fig. 3, on this 110,120 of lower support seats can close by two biphase movable sleeves as shown in FIG. in fact.

Among Fig. 4 a to Fig. 4 c, 100 of this intervertebral pulling off reset device in fact can be by adjusting this upper support dish 140, lower support dish 150 and this upper support seat 110, the bonding position of lower support seat 120, and make the upper support dish 140 of this intervertebral pulling off reset device 100, lower support dish 150 presents 0 degree, different angles such as 5 degree or 10 degree, so that cooperate the radian of human vertebra joint natural torsion, and again because these supporting disks and supporting seat many places are perforation or open by design, so this intervertebral pulling off reset device can be filled between its supporting seat and be planted implant to the marrow, so that promote fusion and recovery (Fig. 1 a of vertebral segments, shown in the 1b).

Claims

1. intervertebral pulling off reset device, it comprises:

Two supporting seats, it all has two relative sidewalls, an and rear wall that is connected with these sidewalls, and corresponding these sidewall apical margins of this rear wall then have a cross bar and are connected, this rear wall all is equipped with an engagement groove and a draw-in groove, these supporting seats are to close by two biphase movable sleeves, make the complete engagement groove that can match out between this rear wall;

Two supporting disks have an end face and a bottom surface, and this bottom surface has a snap fastener, and these supporting disks are fastened in the cross bar and draw-in groove of these supporting seats in twos relatively with the snap fastener of this bottom surface, make these supporting disks combine with these supporting seats;

One screws togather mechanism, and it is that the engagement groove that can match with these supporting seats after complete is screwed;

It is characterized in that: the cross bar of these supporting seats and draw-in groove, and the joining of an extension line of these supporting disk end faces and bottom surface, be to be to have an angle, after making that these supporting disks and supporting seat fasten, one extension line joining of these intervertebral pulling off reset device two relative supporting disk end faces can be had the angle of 0 degree to 10 degree.

2. intervertebral pulling off reset device as claimed in claim 1, wherein these supporting seats are to can be a upper support seat to reach supporting seat, these upper and lower supporting seats are by its biphase symmetric sidewall, and the merging that is nested movably screws togather mechanism with this again makes it in conjunction with fixing.

3. intervertebral pulling off reset device as claimed in claim 1, wherein these supporting disks are to can be a upper support dish to reach supporting disk, these upper and lower supporting disks are the combining mechanisms by its bottom surface, combine relatively and with these supporting seats in twos.

4. intervertebral pulling off reset device as claimed in claim 3, wherein these upper and lower supporting disks are more to be provided with a perforation, this perforation can make these supporting disks combine with supporting seat and connect.

5. intervertebral pulling off reset device as claimed in claim 3, wherein the combining mechanism of these upper and lower supporting disk bottom surfaces is to be a trip, this trip can be hooked between the sidewall of these upper and lower supporting seats, makes these supporting disks can combine fixing with supporting seat.

6. intervertebral pulling off reset device as claimed in claim 1, wherein this screws togather mechanism and can be a screw, and the engagement groove that these supporting seats match after complete also has more a nut, and this screw and nut then can screw togather fixing.