CN204971537U

CN204971537U - Vertebral plate shaping tacking system

Info

Publication number: CN204971537U
Application number: CN201520715225.5U
Authority: CN
Inventors: 申才良; 黄锡艺; 王雅玲; 李洪艳; 缪国帅
Original assignee: Beijing Fule Science & Technology Development Co Ltd
Current assignee: Beijing Fule Science & Technology Development Co Ltd
Priority date: 2015-09-16
Filing date: 2015-09-16
Publication date: 2016-01-20
Anticipated expiration: 2025-09-16

Abstract

The utility model relates to a vertebral plate shaping tacking system belongs to the medical instrument field, is applicable to among the bone surgery. This vertebral plate shaping tacking system includes vertebral plate shaping fixed plate (1), locking screw (2) and screw (3), vertebral plate shaping fixed plate (1) is including an upper fixed plate (4), locking hole (5), pontic (6), bottom plate (7), first sphere hole (8), second sphere hole (9), supporting legs (10) and layer board (11), first sphere hole (8), second sphere hole (9) and the locking same axle center in hole (5), in the time of on the vertebral plate is fixed in the operation, two screws and one locking screw (2) constitute triangle -shaped stable structure, guarantee vertebral plate shaping tacking system surgery effect.

Description

Laminoplasty pegboard systems

Technical field

This utility model relates to Laminoplasty pegboard systems, belongs to medical instruments field, is applicable in bone surgery.

Background technology

The patients with clinical manifestations of stenosis is with cervicodynia, numb limbs and tense tendons is unable, trunk tightly restraints sense, stepping on the typical cervical spondylotic myelopathy symptoms such as Cotton Gossypii sample sensation with lower limb is main, part merges nerve root or vertebral artery cervical spondylosis symptom, posterior cervical open-door laminoplasty Plastic operation is the effective canalis spinalis Posterior decompression of one for the treatment of stenosis, but traditional laminoplasty often exist spinal canal decompression insufficient and after opening the door appearance the complication such as to close the door again, the late result of impact operation, many patients have done improvement on this basis in recent years, Laminoplasty pegboard systems is adopted to fix, achieve good curative effect.

Protovertebra sheet metal forming pegboard systems, fixes two pieces of screws in vertebral plate side, because vertebral plate sclerotin is close to cortical bone, quality is comparatively hard, and the first hole can operate before enabling, because vertebral plate does not cut off easy operation; But when brill the second hole, now spinal canal decompression, vertebral plate only has the collateral support of interlinkage, easily causes the vertebral plate fracture of interlinkage side, lose supporting role during boring.

For solving interlinkage side vertebral plate fracture (causing during vertebral plate punching), so improve the screw fixation method of vertebral plate side, because Interal fixation vertebral plate side after opening the door does not contact spinal dura mater, change the two pieces of screws originally fixing vertebral plate side into single piece of locking nail, and by the enlarged diameter of nail, such clinical manipulation is convenient and simple.

Summary of the invention

For prior art Problems existing, this utility model provides a kind of low incisura Laminoplasty pegboard systems.

To achieve these goals, this utility model provides Laminoplasty pegboard systems, Laminoplasty pegboard systems, comprise Laminoplasty fixing head, lock screw and screw, described Laminoplasty fixing head comprises upper mounted plate, lock hole, pontic, bottom plate, sphere hole, feet and supporting plate, fixed plate there is lock hole, described pontic left end connects upper mounted plate right-hand member, bottom plate left end is connected with pontic right-hand member, bottom plate has two sphere holes, described lock screw head has the first cross recess, there is screw thread head outside, rivet nut afterbody is vertebra shape, rivet nut position screw thread extends to the tip of rivet nut afterbody, there is the second cross recess at position, described screw top, it is sphere outside ailhead.

Accompanying drawing explanation

Fig. 1 is structure chart of the present utility model.

Fig. 2 is the front view of this utility model Laminoplasty fixing head.

Fig. 3 is the top view of this utility model Laminoplasty fixing head.

Fig. 4 is this utility model lock screw front view.

Fig. 5 is this utility model screw front view.

In figure

1 Laminoplasty fixing head; 2 lock screw; 3 screws; 4 upper mounted plates; 5 lock holes; 6 pontics; 7 bottom plates; 8 first sphere holes; 9 second sphere holes; 10 feets; 11 supporting plates; 12 first cross recesses; 13 second cross recesses.

Detailed description of the invention

For making the purpose of this utility model, technical scheme clearly, below in conjunction with accompanying drawing, this utility model is described in further detail.

Shown in Fig. 5, this utility model provides Laminoplasty pegboard systems, described Laminoplasty pegboard systems comprises Laminoplasty fixing head 1, lock screw 2 and screw 3, described Laminoplasty fixing head 1 comprises upper mounted plate 4, lock hole 5, pontic 6, bottom plate 7, first sphere hole 8, second sphere hole 9, feet 10 and supporting plate 11, fixed plate 4 there is lock hole 5, the tapered structure of lock hole 5 cutting plane, be convenient to implant lock screw 2, upper mounted plate 4 outer ledge is the circular arc concentric with lock hole 5, described pontic 6 left end is connected with upper mounted plate 4 right-hand member, bottom plate 7 left end is connected with pontic right-hand member, bottom plate 7 has the first sphere hole 8 and the second sphere hole 9, bottom plate 7 outer ledge be respectively with the first sphere hole 8 and the concentric circular arc of the second sphere hole 9, described lock screw 2 head has the first cross recess 12, and there is screw thread head outside, and rivet nut afterbody is vertebra shape, and rivet nut position screw thread extends to the tip of rivet nut afterbody, and there is the second cross recess 13 at position, described screw top, is sphere outside ailhead.

Described first sphere hole 8, second sphere hole 9 and lock hole 5 concentric, when operation is fixed on vertebral plate, two screws and a lock screw 2 form triangle rock-steady structure, ensure Laminoplasty pegboard systems surgical effect.

Described pontic 6 becomes 30 ° to 55 ° angles with upper mounted plate 4 length direction, and bottom plate 7 becomes 30 ° to 55 ° angles with bottom plate 7 length direction.

Described pontic 6 and bottom plate 7 junction, extend feet 10 in downward direction along pontic 6, feet 10 right side is vertical with bottom plate 7 length direction.

Described supporting plate 11 upper end is attached thereto at pontic 6 upper end 1/4th place, becomes 60 ° to 85 ° angles with pontic 6 length direction, and supporting plate 11 self becomes wide-angle V-arrangement.

The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should protect within protection domain of the present utility model.

Claims

1. Laminoplasty pegboard systems, it is characterized in that, comprise Laminoplasty fixing head (1), lock screw (2) and screw (3), described Laminoplasty fixing head (1) comprises upper mounted plate (4), lock hole (5), pontic (6), bottom plate (7), first sphere hole (8), second sphere hole (9), feet (10) and supporting plate (11), fixed plate (4) there is lock hole (5), the tapered structure of lock hole (5) cutting plane, be convenient to implant lock screw (2), upper mounted plate (4) outer ledge is the circular arc concentric with lock hole (5), described pontic (6) left end is connected with upper mounted plate (4) right-hand member, bottom plate (7) left end is connected with pontic right-hand member, bottom plate (7) has the first sphere hole (8) and the second sphere hole (9), bottom plate (7) outer ledge be respectively with the first sphere hole (8) and the concentric circular arc of the second sphere hole (9), described lock screw (2) head has the first cross recess (12), there is screw thread head outside, and rivet nut afterbody is vertebra shape, and rivet nut position screw thread extends to the tip of rivet nut afterbody, there is the second cross recess (13) at position, described screw top, is sphere outside ailhead.

2. Laminoplasty pegboard systems according to claim 1, it is characterized in that: described first sphere hole 8, second sphere hole 9 and lock hole 5 concentric, when operation is fixed on vertebral plate, two screws and a lock screw 2 form triangle rock-steady structure, ensure Laminoplasty pegboard systems surgical effect.

3. Laminoplasty pegboard systems according to claim 1, is characterized in that: described pontic 6 becomes 30 ° to 55 ° angles with upper mounted plate 4 length direction, and bottom plate 7 becomes 30 ° to 55 ° angles with bottom plate 7 length direction.

4. Laminoplasty pegboard systems according to claim 1, is characterized in that: described pontic 6 and bottom plate 7 junction, extend feet 10 in downward direction along pontic 6, feet 10 right side is vertical with bottom plate 7 length direction.

5. Laminoplasty pegboard systems according to claim 1, is characterized in that: described supporting plate 11 upper end is attached thereto at pontic 6 upper end 1/4th place, becomes 60 ° to 85 ° angles with pontic 6 length direction, and supporting plate 11 self becomes wide-angle V-arrangement.