CN2936181Y - Hinge barb type intervertebral fusion device capable of opening regution - Google Patents
Hinge barb type intervertebral fusion device capable of opening regution Download PDFInfo
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- CN2936181Y CN2936181Y CN 200520047455 CN200520047455U CN2936181Y CN 2936181 Y CN2936181 Y CN 2936181Y CN 200520047455 CN200520047455 CN 200520047455 CN 200520047455 U CN200520047455 U CN 200520047455U CN 2936181 Y CN2936181 Y CN 2936181Y
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- agnail
- hinge
- fusion device
- formula
- struts
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Abstract
The utility model relates to an unfolded hinge agnail intervertebral Depuy Acromed and characterizes in hinge agnail intervertebral Depuy Acromed and unfolded bolt composition. The hinge agnail intervertebral Depuy Acromed is closed, articulated and continuous jointed with the front open.Both sides or one side has agnail. In the middle of the Depuy Acromed is a detect area for transplant graft. The sides of the center cut of the front of the Depuy Acromedis is the entrance for the tapering or trapezoid boltor holder with fenestrate. The utility model is of proper design and easy to operate and enhances the depth of the pricking into the intervertebral though the tapering bolts. The utility model has a perfect stability and braking effect and can immediately revert the former height and physiological curve degree of the intervertebral to guarantee the healing effect and the intervetrtebral Depuy Acromed will not roll out forward or backward. The utility model can be used widely in spine surgery clinical medical cases including the cervical vertebra, the thoracic vertebra and lumbar.
Description
Technical field
This utility model relates to medical instruments field, is a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting.
Technical background
Along with average life span prolongation, traffic accident and motional injury increase, thus spinal column degenerated and traumatic case cumulative year after year, wherein needing operator, have more than the hundreds of thousands of them every year approximately.
Spinal operation is of a great variety, comprises decompression, the fixation that resets and orthopedic procedure etc., but every example operation postoperative all needs with the fusion of operation vertebra joint, with the effect that obtains to stablize.Fusion in the past is based on from the body bone grafting, and not only the time long (about 3～June of bone time of fusion), getting bone because of need from its elsewhere of patient body increases patient suffering and complication.For this reason, there are various inner fixers to come out in recent years; In many inner fixers, Invasive lumbar fusion device has the advantage of its uniqueness, because of it places between two vertebras, not only contact surface is big, easily bone fusion, and can recover immediately vertebra joint highly and tension force, therefore society is then moved towards in postoperative patient's next day activity of can getting up 2～3 weeks.But presently used Invasive lumbar fusion device stability is relatively poor, easily outwards skids off or inwardly slips into and various complication occur, even cause paralysis, so that have to perform the operation once more.
Summary of the invention
This utility model provides a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting.It is when implanting intervertebral space, because its unique hinge agnail formula design, fusion device can be fixed in steadily between the vertebra joint, screw in cone screw again, fusion device is being strutted simultaneously, the agnail on its surface gos deep into vertebra joint sclerotin more, has not only strengthened the stability of fusion device and the braking effect that vertebra is saved, and the height and the physiology curvature of efficient recovery vertebra joint can be arranged.
This utility model is by hinge agnail formula fusion device 1 and strut screw 2 two parts and constitute.One end (rear) of hinge agnail formula fusion device 1 is closed form and connects, and normally hinge type or the connection of integrated continuously, an other end (the place ahead) are and fit tightly two pages up and down; Its bilateral or single side surface have agnail 11; Hinge agnail formula fusion device 1 central authorities are for for the defective region 12 of placing plant bone mass, and hinge agnail formula fusion device 1 is a pair of screw hole 2 that struts that struts screw 2 inlets corresponding to the both sides of an other end (the place ahead) Central Line of closing end, its simultaneously dual-purpose for holding the hole.
Description of drawings
Fig. 1 is the hinge agnail formula vertebra joint fusion device sketch map in this utility model;
Fig. 2 is for strutting the sketch map of screw in this utility model;
Fig. 3 can strut the hinge agnail formula vertebra joint fusion device assembled state figure of adjusting for this utility model;
Fig. 4 can strut the hinge agnail formula vertebra joint fusion device user mode sketch map of adjusting for this utility model.
Wherein, the taper of Fig. 2-1 arachnoid struts screw; The taper of Fig. 2-2 scalariform struts screw; Fig. 3 injects hinge agnail formula vertebra joint fusion device 1 preceding assembled state figure for taper struts screw 2; Fig. 4 struts after screw 2 screws in hinge-type agnail fusion devices 1 for taper, and last lower jaw is strutted, struts the user mode sketch map of screw 2 when locked.
Symbol description:
1 hinge agnail formula vertebra joint fusion device, 11 thorns, 111 agnails backward, 112 agnails forward, 12 oval bone graft area, 13 strut screw locking screw, and 14 strut screw hole; 2 strut screw.
The specific embodiment:
Following embodiment further specifies the present invention, is limited to content of the present utility model but can not limit.This utility model can strut adjusting and hinge agnail formula Invasive lumbar fusion device sees also accompanying drawing 1～4.It is saved fusion device 1 and strutted screw 2 by hinge agnail formula vertebra forms.
Shown hinge agnail formula vertebra joint fusion device 1 is deltiod, and transverse diameter is greater than anteroposterior diameter 1mm.Overlook (top sight), it has an oval defective region 12 in fusion device central authorities, accounts for the hinge gross area 30～50%, recommends 40%, is used to place plant bone mass.Respectively there are two row's agnails, 11 structures the side, and agnail length is 0.5～1.5mm; Front end agnail (accounting for 2/3) direction forward, direction is backward for far-end agnail (accounting for 1/3).Face the hinge opening, respectively have in hinge agnail formula vertebra joint fusion device 1 central both sides one with lock decide that device struts screw locking screw 13 strut screw hole 14, for strutting the usefulness that screw 2 screws in and struts, described to strut screw locking screw 13 be oval eccentric shape; Strutting screw hole also can be used as and holds hole 14 (accompanying drawing 1).Strutting screw 2 can be that the arachnoid taper struts screw or head is the trapezoidal screw (accompanying drawing 2) that struts, and its length is less than the anteroposterior diameter 2～3mm of hinge agnail formula vertebra joint fusion device 1; Diameter 1.5～6mm, the place ahead is thick, and the rear is thin.Make hinge agnail formula vertebra joint fusion device 1 the place ahead strut 1～4mm (accompanying drawing 4) gradually by strutting screw 2 screw-in fusion device deeps.
This hinge agnail formula vertebra joint fusion device 1 be 4～8mm highly, be respectively 4,6, three kinds of specifications of 8mm, its single page can be 2～mm, promptly is respectively 2,3 or 4mm.The width of hinge agnail formula vertebra joint fusion device 1 is 11～13mm, can be respectively 11,12,13mm; Length is 10～12, can be respectively 10,11,12mm; Etc. plurality of specifications.Its four jiaos is circular or middle fillet; Hinge agnail formula vertebra joint fusion device 1 opening, one end (the place ahead) both sides have band to strut screw locking screw 13 and strut screw hole 14, opening part diameter 2～3mm.Strut screw 2 and be cone screw or the trapezoidal screw of head, length is 8～10mm, as be respectively 8,9, three kinds of specifications of 10mm, its diameter is that preceding thick back is thin, point diameter is 3～6mm, as be respectively 3,4,5, four kinds of specifications of 6mm; The rear end diameter is 1.5mm.In naturalness, hinge agnail formula vertebra joint fusion device 1 is closed form; During use, earlier hinge agnail formula vertebra joint fusion device 1 is inserted in the target vertebra part, will strut screw 2 again and insert to strut in the screw hole 14 and and screw in, make hinge agnail formula vertebra joint fusion device 1 forward end opening increase 1～4mm to the deep.So can make the agnail 11 of fusion device upper and lower surface thrust vertebra joint surface of bone deep and play braking and strut effect; And recover vertebra immediately and save original height and physiology curvature.
The hinge agnail formula vertebra joint fusion device that this utility model can strut adjusting is applied to cervical operation, also can be used for thoracic vertebra and lumbar vertebra after amplifying in proportion.
The hinge agnail formula vertebra that this utility model can strut adjusting saves fusion device in use, earlier to the target vertebra part decompression, the utility model of corresponding specification can be strutted the hinge agnail formula vertebra joint fusion device 1 embedding target vertebra part of adjusting afterwards under softened state; Hinge agnail formula vertebra joint fusion device 1 leading edge is parallel with vertebra joint leading edge, or lower slightly 1～2mm.Afterwards supporting strutting screwed in to the deep after screw 2 inserts screws, can strut 1～4mm after reaching desired depth and obtaining desired effects, screw locking device, make to strut screw 2 and can not skid off (accompanying drawing 3).Require the hinge agnail formula vertebra joint fusion device that can strut adjusting of implantations stable, invariant position, undirected preceding or slide backward.
The hinge agnail formula Invasive lumbar fusion device of the strutted adjusting that this utility model provides, not only reasonable in design, easy to use, and increase the degree of depth that the surperficial agnail 11 of the hinge agnail formula Invasive lumbar fusion device that can strut adjusting thrusts the vertebra joint by strutting screw 2, and stability and braking effect are good, and recover vertebra immediately and save original height and physiology curvature, thereby, more can not slip into backward guaranteeing that curative effect simultaneously, also makes the hinge agnail formula Invasive lumbar fusion device that can strut adjusting can not skid off forward.
The hinge agnail formula Invasive lumbar fusion device that struts adjusting of the present utility model can be widely used in the spinal surgery clinical case, comprises cervical vertebra, thoracic vertebra and lumbar vertebra.
Claims (8)
1, a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting is characterized in that by hinge agnail formula fusion device (1) and struts screw (2) forming; Described hinge-type fusion device (1) rear is the hinge type of closed form or integrated connection continuously, and the place ahead is opened wide; Its bilateral or single side surface have agnail (11); Fusion device central authorities have one for the defective region (12) of placing plant bone mass, and the both sides of Central Line, fusion device the place ahead are taper or trapezoidal screw inlet or hold hole (14), should a pair of screw hole (14) that struts be arranged in the both sides of the other end Central Line of closing end; The described anteroposterior diameter 2～3mm that struts screw (2) length less than hinge agnail formula Invasive lumbar fusion device (1), point diameter 3～6mm, the rear end diameter is 1.5mm.
2, a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting as claimed in claim 1 is characterized in that the defective region (12) of described hinge agnail formula fusion device (1) accounts for 30～50% of the hinge gross area.
3, a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting as claimed in claim 1 is characterized in that described hinge agnail formula Invasive lumbar fusion device (1) is deltiod.
4, a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting as claimed in claim 1 is characterized in that respectively there are two row's agnails (12) on defective region (12) side of described hinge agnail formula Invasive lumbar fusion device (1), and agnail length is 0.5～1.5mm; Front end accounts for 2/3 agnail direction forward, and far-end accounts for 1/3 agnail direction backward.
5, a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting as claimed in claim 1, the monolayer height that it is characterized in that described hinge agnail formula Invasive lumbar fusion device (1) is 2～4mm, and total height is 4～8mm, and its width is 11～13mm; Length is 10～12mm.
6, a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting as claimed in claim 1, four jiaos that it is characterized in that described hinge agnail formula Invasive lumbar fusion device (1) for circular.
7, a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting as claimed in claim 1 is characterized in that described screw hole (14) the opening part diameter 2～3mm that struts.
8, a kind of hinge agnail formula Invasive lumbar fusion device that struts adjusting as claimed in claim 1 is characterized in that described to strut screw (2) length be 8～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047455 CN2936181Y (en) | 2005-12-13 | 2005-12-13 | Hinge barb type intervertebral fusion device capable of opening regution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047455 CN2936181Y (en) | 2005-12-13 | 2005-12-13 | Hinge barb type intervertebral fusion device capable of opening regution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2936181Y true CN2936181Y (en) | 2007-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047455 Expired - Fee Related CN2936181Y (en) | 2005-12-13 | 2005-12-13 | Hinge barb type intervertebral fusion device capable of opening regution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2936181Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104323873A (en) * | 2014-11-18 | 2015-02-04 | 孙钢 | Minimally invasive adjustable interbody fusion cage for spondylolysis |
-
2005
- 2005-12-13 CN CN 200520047455 patent/CN2936181Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104323873A (en) * | 2014-11-18 | 2015-02-04 | 孙钢 | Minimally invasive adjustable interbody fusion cage for spondylolysis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20100113 |