CN2694917Y - Improved structure of fixator for orthopedics department - Google Patents

Abstract

The utility model relates to an improved structure of fixator for orthopedics department. The fixator is composed of a connecting piece, a locked firmware and an implantation component, the connecting piece is equipped with a conjugate foramen, the upper and the lower part of the conjugate foramen are respectively equipped with an upper and a lower contact holding flute. More than that one end of the implantation component is equipped with a locking screw rod, the other end which is far from the locking screw rod is equipped with an implantation screw rod, and the locking screw rod can be locked with a locked firmware with contact holding banquette in the upper contact holding flute of the conjugate foramen after it penetrates into the conjugate foramen, while the contact holding banquette of the locked firmware is equipped with a plurality of cut slot, when the locked firmware is locked with the locking screw rod in the upper contact holding flute, the contact holding banquette is contacted and held by the upper contact holding flute, and then be compressed towards the central position and firmly clamps at the outer edge of the locking screw rod.

Description

Structure improved orthopaedics holder

Technical field

This utility model relates to a kind of structure improved orthopaedics holder, especially refer to that locking part is provided with profile groove in supporting protuberance, when the turn locking part is locked in locking screw, even locking part support protuberance be held in connector on support in the groove, and then just support protuberance and compress, and firmly be held on locking screw table edge towards the center.

Background technology

Vertebra is the important support framework of human body, the seat of human body, crouch, lie, stand, bend, posture such as crouching, all be by vertebra control, therefore, vertebra must remain on optimum state, can make physical activity freely; And the vertebra of human body is made up of several vertebraes, and between adjacent vertebrae, then has intervertebral disc, because of wearing out along with human body, even the intervertebral disc between the adjacent ridge vertebra is slowly degenerated, and then the intervertebral disc that causes adjacent vertebrae can be narrow gradually, atrophy or distortion, cause vertebrae can be urged to nerve; Or, all cause the injured of vertebrae or damage easily because of unexpected injury, activity fault etc.; When vertebrae is injured, be nerve or muscle, the muscle arteries and veins etc. around intervertebral disc atrophy, distortion and then the compressing of avoiding vertebrae, then injured vertebrae must be supported by the intervertebral disc place, intervertebral disc is resetted in the normal position, make unlikely atrophy of vertebrae or distortion; At present, be to utilize the vertebra inner fixer to be fixedly arranged on the intervertebral disc of vertebrae, and connected the location, thereby make vertebrae be subjected to suitable support and reset, and injured vertebrae promptly is supported for the therapeutic modality that resets and adopted of the intervertebral disc of vertebrae.

And it is existing about the vertebra inner fixer, announce seven No. four " novel rear vertebra inner fixer " novel patent cases of the Seventh Five-Year Plan on May Day as TW, announce in the patent gazette on January 11st, 2003, application case number the 90208804, please consult shown in Figure 11,12 simultaneously, be the three-dimensional exploded view of existing vertebra inner fixing device, the side cutaway view of link component, it includes:

Several implant elements A, this implant element A is a cylinder, the one end has the implantation screw thread A1 of a suitable length, the external lock screw thread A2 that has a suitable length with respect to the other end of implanting screw thread A1, have a bulge loop A3 between two screw threads, this bulge loop A3 is a spheroform surface A4 in the side of external lock screw thread A2;

Several link components B, this link component B is a microscler plate, it has two planes that are parallel to each other, this two planar end has first a through hole B1 perpendicular to this in-plane, be socketed in the external lock screw thread A2 of above-mentioned implant element A, this first through hole B1 is positioned at planar two ora terminalis and has the recessed edge B2 of a sphere ring-type respectively, have one with respect to the other end of the first through hole B1 and be parallel to the above-mentioned planar second through hole B3, have one corresponding to the wherein plane of this second through hole B3 position and protrude the position, this protrusion position has one and is through to the fixing threaded hole B4 of this second through hole B3 by the surface;

One prismatic member spare C is arranged in the second through hole B3 of link component B;

Several fixed screws D is disposed at the fixing threaded hole B4 of link component B;

Several pads meet element E, be disposed at link component B top, its center has a suitably big or small through hole E1, is socketed on the external lock screw thread A2 of implant element A, end face in link component B is a spheroform surface E2, is a winding plane E3 with respect to the other end of spheroform surface E2;

Several outer locking element F, this outer locking element F is a cylinder, and its center has a screw F1, is screwed together in the external lock screw thread A2 of implant element A, and an end that meets element E in pad is a winding plane F2.

Aforementioned existing vertebra inner fixer still has many disappearances in use, for example:

1, this implant element A penetrates the first through hole B1 of link component B by external lock screw rod A2, and in be inserted on the external lock screw rod A2 pad meet element E after again beyond locking element F interlocking on external lock screw rod A2, right this pad meets element E and can not be held on external lock screw rod A2 outer rim, can't hold external lock screw rod A2, can not make external lock screw rod A2 reach the location, and external lock screw rod A2 is easy to generate rock, loosening phenomenon.

2, this pad connects element E ring body spherical in shape, is rotated in the recessed edge B2 of sphere ring-type of link component B by the spheroform surface E2 of its outer rim and moves, and does not have a stabilization function, can't make external lock screw rod A2 reach the location.

Above-mentioned existing vertebra inner fixer has many disappearances on structural design, and produces trouble and inconvenience when using, and is and is engaged in the very crux that this journey dealer desires most ardently improvement.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art and defective, and a kind of structure improved orthopaedics holder is provided, make it possess interlocking firm, be difficult for rocking and advantage such as off normal.

Main purpose of the present utility model, the protuberance that supports that is the locking part of holder is provided with several profile grooves, and when locking part on connector on support the groove internal lock when being connected to the locking screw of implantation piece, the protuberance that supports of this locking part is promptly supported supporting of groove, pushes and firmly be held on locking screw table edge towards the center.

Secondary objective of the present utility model is that the protuberance that supports of locking part is provided with several profile grooves, supports the elastic force that protuberance has strain and make.

A purpose more of the present utility model is that several profile grooves on the protuberance of supporting of locking part, this profile groove can be cross shape and cut open and establish, or is the M shape shape and cuts open and establish.

For reaching above-mentioned purpose, this utility model provides a kind of structure improved orthopaedics holder, include connector, locking part and implantation piece are formed, this connector is provided with the conjugate foramen that runs through, and above conjugate foramen, be provided with and support groove, and an end of this implantation piece is provided with the implantation screw rod, the other end then is provided with locking screw, and locking screw can pass the conjugate foramen of connector, and can supply interlocking one tool support the locking part of protuberance, and locking part support protuberance be contained in conjugate foramen on support in the groove, wherein: this locking part is provided with several profile grooves in supporting protuberance, and the locking part interlocking is when locking screw, the supporting protuberance and can be supported supporting of groove of locking part, and towards the center extruding and firmly be held on locking screw table edge.

Description of drawings

Fig. 1 is a stereo appearance figure of the present utility model;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is the sealed preceding top plan view of locking part of the present utility model;

Fig. 4 is the top plan view of locking part of the present utility model after sealed;

Fig. 5 is the sealed preceding side cutaway view of locking part of the present utility model;

Fig. 6 is the side cutaway view of locking part of the present utility model after sealed;

Fig. 7 is the stereo appearance figure of this utility model preferred embodiment;

Fig. 8 is the three-dimensional exploded view of this utility model preferred embodiment;

Fig. 9 is the side view of this utility model preferred embodiment;

Figure 10 is the three-dimensional exploded view of another embodiment of the present utility model;

Figure 11 is the three-dimensional exploded view of existing vertebra inner fixing device;

Figure 12 is the user mode figure of existing vertebra inner fixing device.

Symbol description among the figure

1 holder

2 connectors

21 sides, 24 conjugate foramens

Support groove on 211 through holes 241

22 end faces support groove 242 times

221 inner bolt holes, 25 convergence holes

23 positioning screws 26 are transferred and are moved the hole

3 implantation pieces

31 locking screws 32 are implanted screw rod

311 spherical surface body

4 locking parts

41 support protuberance 411 profile grooves

5 connecting rods

6 skeletons

The A implant element

A1 implants screw thread A3 bulge loop

A2 external lock screw thread A4 spheroform surface

The B link component

The B1 first through hole B3 second through hole

The recessed edge B4 of B2 sphere ring-type fixing threaded hole

C uiform section rod member

The D fixed screw

The E pad connects element

E1 through hole E3 winding plane

The E2 spheroform surface

The outer locking element of F

F1 screw F2 winding plane

The specific embodiment

For reaching above-mentioned purpose and structure, technological means that this utility model adopted and effect thereof now illustrate in detail that with regard to preferred embodiment of the present utility model its structure is as follows with function, in conjunction with the accompanying drawings in order to understanding fully.

See also shown in Fig. 1,2, be stereo appearance figure of the present utility model, three-dimensional exploded view, find out that by knowing among the figure holder 1 of the present utility model mainly is made up of connector 2, positioning screw 23, implantation piece 3 and locking part 4, wherein:

The side 21 of this connector 2 is provided with the through hole 211 that laterally runs through, on the vertical end face 22 of through hole 211, then run through and be provided with inner bolt hole 221, and inner bolt hole 221 is for locking for positioning screw 23, and be provided with vertically to the conjugate foramen 24 that connects in the other end of through hole 211, support groove 241, lower end on the upper end of this conjugate foramen 24 forms and then form down and support groove 242.

This implantation piece 3 is arranged in the conjugate foramen 24 of connector 2, and the one end is provided with locking screw 31, and the other end has then extended implants screw rod 32, and between locking screw 31 and implantation screw rod 32, is provided with spherical surface body 311.

This locking part 4 is locked on the locking screw 31 of implantation piece 3, and locking part 4 is provided with in a side and supports protuberance 41, and it can be the cone curved surface, also can be spherical cambered surface.And be provided with several profile grooves 411 in supporting protuberance 41, support the elastic force that protuberance 41 has strain and make.

By above-mentioned member in group during structure, locking screw 31 with implantation piece 3 tops penetrates in the conjugate foramen 24 of connector 2 one sides earlier, and spherical surface body 311 embedding the following of conjugate foramen 24 of locking screw 31 bottoms are supported in the groove 242, so that this implantation piece 3 can be adjusted deviation angle, and locking screw 31 is locked by locking part 4 after passing conjugate foramen 24, and make locking part 4 lock conjugate foramen 24 on support in the groove 241, promptly group constitutes holder 1.

And the through hole 211 of aforesaid holder 1 by connector 2 is arranged in (shown in Fig. 7,8) on the connecting rod 5, and locks on the connecting rod 5 that presses on behind the inner bolt hole 221 in the through hole 211 with positioning screw 23, thereby holder 1 is positioned on the connecting rod 5.

See also Fig. 3 again, 4,5, shown in 6, be the sealed preceding top plan view of locking part of the present utility model, top plan view after locking part is sealed, side cutaway view before locking part is sealed, side cutaway view after locking part is sealed, learn by knowing among the figure, when locking part 4 supports groove 241 internal locks when connecing the locking screw 31 of implantation piece 3 on connector 2, the protuberance 41 that supports of its locking part 4 is promptly supported supporting of groove 241, make to support protuberance 41 generation compressions and form elasticity and push towards the center, and can firmly be held on locking screw 31 table edge simultaneously, and then make locking screw 31, thereby make implantation piece 3 have the effect that the location is firm and be difficult for rocking by locking part 4 clampings location.

See also Fig. 5, shown in 6, be the sealed preceding side cutaway view of locking part of the present utility model, side cutaway view after locking part is sealed, wherein, utilize the implantation screw rod 32 of implantation piece 3 to lock in the skeleton 6, and pass the conjugate foramen 24 of connector 2 with the locking screw 31 of implantation piece 3, lock on the locking screw 31 with locking part 4 again, and the protuberance 41 that supports of locking part 4 supports on conjugate foramen 24 and is subjected to concave arc in the groove 241 and supports, support that protuberance 41 produces the elastic compression distortion and push and make towards the center, and firmly be held on the locking screw 31, make locking screw 31 be held the location by locking part 4, so that implantation piece 3 is firmly combined with connector 2, and skeleton 6 is done stable support.

See also again shown in Fig. 7,8,9, be the stereo appearance figure of this utility model preferred embodiment, the three-dimensional exploded view of preferred embodiment, the side view of preferred embodiment, this holder 1 is locked in the skeleton 6 with the implantation screw rod 32 of implantation piece 3, and holder 1 also is arranged on the connecting rod 5 with connector 2, and can do suitable spacing adjustment on connecting rod 5, thereby making holder 1 be positioned to use on the connecting rod 5 supports skeleton 6 in position; The locking screw 31 of the implantation piece 3 of this holder 1 is for locking parts 4 lockings, and by locking part 4 support protuberance 41 towards the center extruding and be held in locking screw 31, reach the function that 3 lockings are difficult for rocking to implantation piece.

See also shown in Figure 10, three-dimensional exploded view for the another embodiment of this utility model, these connector 2 one ends are provided with convergence hole 25 and the other end and are provided with to transfer and move hole 26, this accent moves hole 26, and to be elongate slots poroid, and this convergence hole 25, accent moves hole 26 and can pass for the locking screw 31 of implantation piece 3 respectively, and be arranged in and transfer the implantation piece 3 that moves 26 places, hole, can move in accent and do radial adjustment in the hole 26, displacement, thereby make 3 adjustment of doing suitable distance of two implantation pieces that wear in convergence hole 25 and the displacement aperture 26, again with locking part 4 interlockings on locking screw 31, move 26 places, hole and make implantation piece 3 be individually fixed in convergence hole 25 with accent.

And after the locking screw rod 31 and penetrate convergence hole 25 of this implantation piece 3, and with locking part 4 interlockings on locking screw 31, promptly in locking part 4 in locking screw on 31 during turn locking and drive locking screw 31 and move toward rising, and the protuberance 41 that supports on the locking part 4 produces inwardly contraction because of having several profile grooves 411, and be held in locking screw 31 table edge, thereby make locking screw 31 be subjected to holding unlikely rocking to support protuberance 41 bottoms.

Above-mentioned detailed description is at preferred embodiment explanation of the present utility model; only; this embodiment is not in order to limit to protection domain of the present utility model; such as other does not break away from equalization that technical spirit that this utility model discloses finished down and changes and modify change; all should be contained in the scope of claims that this utility model contains; and locking part one side of the present utility model is provided with and supports protuberance; and be provided with several profile grooves in supporting protuberance; and locking part is when being locked on locking screw; it supports protuberance and is subjected to supporting supporting of groove; and also firmly be held on the locking screw towards the center extruding; the effect that reaches locking screw and be difficult for rocking, and have the effect of fastening implantation piece.

In sum, the structure improved orthopaedics of this utility model when using, can reach its effect and purpose, so this utility model really is the innovation and creation of a practicality excellence with holder really.

Claims (11)

1. structure improved orthopaedics holder, including connector, locking part and implantation piece forms, this connector is provided with the conjugate foramen that runs through, and be provided with above conjugate foramen and support groove, and an end of this implantation piece is provided with the implantation screw rod, the other end then is provided with locking screw, and locking screw can pass the conjugate foramen of connector, and can support the locking part of protuberance for interlocking one tool, and locking part support protuberance be contained in conjugate foramen on support in the groove, it is characterized in that:

This locking part is provided with several profile grooves in supporting protuberance, and the locking part interlocking is when locking screw, the supporting protuberance and can be supported supporting of groove of locking part, and towards the center extruding and firmly be held on locking screw table edge.

2. structure improved according to claim 1 orthopaedics holder, wherein, the connector of this holder is provided with through hole in the side, and then is provided with inner bolt hole in end face.

3. as structure improved orthopaedics holder as described in the claim 2, wherein, the inner bolt hole on this connector can be locked for positioning screw, and positioning screw is locked in the through hole.

4. as structure improved orthopaedics holder as described in the claim 2, wherein, this holder can be arranged on the connecting rod by the lateral through hole of connector.

5. as structure improved orthopaedics holder as described in the claim 4, wherein, this connecting rod can be equipped with holder in two ends respectively, and this two holder can be adjusted suitable spacing on connecting rod.

6. structure improved according to claim 1 orthopaedics holder, wherein, the connector of this holder is provided with down in the below of conjugate foramen and supports groove.

7. structure improved according to claim 1 orthopaedics holder, wherein, the protuberance that supports of this locking part can be the cone curved surface.

8. structure improved according to claim 1 orthopaedics holder, wherein, the protuberance that supports of this locking part can be spherical cambered surface.

9. structure improved according to claim 1 orthopaedics holder wherein, is provided with spherical surface body in implanting between screw rod and the locking screw on this implantation piece.

10. structure improved according to claim 1 orthopaedics holder, wherein, this connector one end is provided with convergence hole and the other end and then is provided with to transfer and moves the hole.

11. as structure improved orthopaedics holder as described in the claim 10, wherein, the accent on this connector moves the hole, and to can be elongate slots poroid, moves in accent for the locking screw of locking part and do radial displacement in the hole.

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