CN2362458Y - Combined intervertebral confluence fixator - Google Patents
Combined intervertebral confluence fixator Download PDFInfo
- Publication number
- CN2362458Y CN2362458Y CN 98232069 CN98232069U CN2362458Y CN 2362458 Y CN2362458 Y CN 2362458Y CN 98232069 CN98232069 CN 98232069 CN 98232069 U CN98232069 U CN 98232069U CN 2362458 Y CN2362458 Y CN 2362458Y
- Authority
- CN
- China
- Prior art keywords
- bone
- parallel
- connecting plates
- compound
- pipes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a compound fixing device for fixing and filling the gap of a vertebral body in the vertebral column surgical operation and comprises two upper and lower parallel circular pipes with screw threads and two parallel connecting plates. The two parallel circular pipes and the two parallel connecting plates are mutually connected to form an opened hollow chamber, and at least the bottom end of one circular pipe is provided with a concave groove. Bone material is arranged in the opened hollow chamber. The compound fixing device with the novel structure can achieve the inter-vertebral fixing action in the short period and ensure the inter-vertebral biology fusion and effect in the long period.
Description
This utility model relates in a kind of spinal surgery the compound holder of fixing, filling interbody space.
Traditional spinal surgery, common with discectomy, or the pathological tissues in the vertebral body, in the intervertebral disc (as tumor, tuberculosis) removed, and keep or do not keep the vertebra accessories section, postoperative, the stable heavy damage of spinal column causes the postoperative spinal canal decompression to be finished and unstable spine, the trunk back pain.Also have intervertebral (body) operative defect place is implanted with bone, merge with new filling, but the common complication such as (the false knot that closes forms) the outstanding compressing of implantable bone spinal cord, nerve, blood vessel that do not merge.Nearest research also shows, simple bone grafting, and the sclerotin compression that easily causes being planted absorbs, and is unfavorable for creeping substitution and new bone formation.
The purpose of this utility model is to provide a kind of compound intervertebral fusion holder that had not only guaranteed (short-term) interior intervertebral fixation in the recent period but also guaranteed intervertebral at a specified future date fusion biology.
This utility model is to realize like this, it comprises upper and lower two parallel screwed pipes and two parallel connecting plates, the parallel connecting plate with two of two parallel pipes is interconnected to constitute an open cavity, and at least one pipe bottom is provided with a groove, the built-in bone material of open cavity.Two pipes and two connecting plates are made of metal or absorbable material, and metal is the metal material or the human body absorbable material of various human implantables.The bone material is from body bone, allograph bone, xenogenesis bone or artificial bone succedaneum.
This utility model novel structure both can reach intervertebral fixation in a short time, guaranteed that again intervertebral at a specified future date merges and effect biology.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the sectional structure sketch map of this utility model
Fig. 2 sees this utility model front view of connecting plate for the front.
Consult shown in Fig. 1,2, this utility model comprises upper and lower two parallel parallel connecting plates 2 with two of pipe 1 of 4 that are threaded, the parallel connecting plate 2 with two of two parallel pipes 1 is interconnected to constitute an open cavity 3, at least one pipe 1 bottom is provided with a groove 6, open cavity 3 built-in bone materials 5.Two pipes 1 and two connecting plates 2 are made of metal or absorbable material, and metal then is that the metal material or the described bone material 5 of human body absorbable material of various human implantables is from body bone, allograph bone, xenogenesis bone or artificial bone succedaneum.
The main undertaker of the recent intervertebral fixation of this utility model is the frame part that two pipes and two connecting plates are formed.Its week of two pipes 1 is along retreating (posterior approach installations) or advance (anterior approach installation) is provided with screw thread 4 for anti-, can prevent this fixedly fusion device advance or retreat, prevention of postoperative moves to oppress spinal cord or nerve.Pipe 1 possesses enough mechanical strength to be supported and goes up the impulsive force that the above body weight of vertebral body and low-keyed physical exertion are conducted, and guarantees the height of intervertebral space at no distant date, the spinal column and the space of recovering nerve root near guaranteeing.In addition, 1 week of pipe is darker along screw thread 4, can prevent effectively that the front and back of upper and lower vertebral body are to slippage.The bone material 5 of cavity 3 parts fully contacts with upper and lower vertebral body spongy bone, increases friction system to each other, further guarantees the early stage interpyramidal fixation of postoperative.The bone material of cavity part mostly is spongy bone; under an overfill protection of the part stress of pipe 1 (rather than all stress); easily by upper and lower vertebral body from body osseous tissue creeping substitution; merge more again and form from the body bone biology; reach late result as early as possible, avoided the recent and long term complication of present employed material or method.
Claims (3)
1. compound intervertebral fusion holder, it is characterized in that: it comprises upper and lower two parallel screwed pipes and two parallel connecting plates, the parallel connecting plate with two of two parallel pipes is interconnected to constitute an open cavity, at least one pipe bottom is provided with a groove, the built-in bone material of open cavity.
2. compound intervertebral fusion holder according to claim 1 is characterized in that: two pipes and two connecting plates are made of metal or absorbable material, and metal is the metal material or the human body absorbable material of various human implantables.
3. compound intervertebral fusion holder according to claim 1 is characterized in that: the bone material is from body bone, allograph bone, xenogenesis bone or artificial bone succedaneum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232069 CN2362458Y (en) | 1998-12-31 | 1998-12-31 | Combined intervertebral confluence fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232069 CN2362458Y (en) | 1998-12-31 | 1998-12-31 | Combined intervertebral confluence fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2362458Y true CN2362458Y (en) | 2000-02-09 |
Family
ID=33981180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98232069 Expired - Fee Related CN2362458Y (en) | 1998-12-31 | 1998-12-31 | Combined intervertebral confluence fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2362458Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108403266A (en) * | 2018-03-05 | 2018-08-17 | 白桦 | A kind of intervertebral confluence fixator |
-
1998
- 1998-12-31 CN CN 98232069 patent/CN2362458Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108403266A (en) * | 2018-03-05 | 2018-08-17 | 白桦 | A kind of intervertebral confluence fixator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |