CN2860376Y - Internal fixator for single side entrance of cervical vertebrae plate - Google Patents
Internal fixator for single side entrance of cervical vertebrae plate Download PDFInfo
- Publication number
- CN2860376Y CN2860376Y CN 200520048124 CN200520048124U CN2860376Y CN 2860376 Y CN2860376 Y CN 2860376Y CN 200520048124 CN200520048124 CN 200520048124 CN 200520048124 U CN200520048124 U CN 200520048124U CN 2860376 Y CN2860376 Y CN 2860376Y
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- CN
- China
- Prior art keywords
- fixture
- fixator
- left end
- door
- utility
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7071—Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model relates to the field of medical device technology. The invention is an interior cervical fixator of unilateral cervical open-door, consisting of a fixator and a bolt. The utility model is characterized in that the middle part 3 of the fixator is arc-shape with strip-shape round holes 2 on its top section; the left and right ends of the fixator bend to or near level, the top section of the left end of fixator with two round holes 6 and of the right end with two round holes 1, the left end of the middle part 3 with an extension part 5 extending outward; the space between the extension part 5 and the left end of the fixator makes a duck-mouthed slot 4. The utility model has a novel, simple structure comparing with the current technology. The interior cervical fixator fixes the rear structure of the vertebra to the required position to keep good effect of reducing the pressure after the operation of unilateral cervical open-door. The duck-mouthed slot fixes the opening side vertebra in the slot. .The fixator makes a high success rate of the operation and reduces the relapse rate of vertebra pipe narrowness so that the patients can recover earlier. The utility model is worthwhile to promote its application.
Description
[technical field]
This utility model relates to technical field of medical instruments, is the one-sided internal fixation spare that opens the door of a kind of cervical vertebra vertebral plate.
[background technology]
The narrow patient of cervical spondylosis and cervical spinal canal need go the operation of opening the door of cervical vertebra vertebral plate bilateral.This operation is in decompression and enlarge the volumetrical stability that has prevented the odd-shaped generation of cervical vertebra recurvation simultaneously, kept spinal column of cervical spinal canal.The method of using is vertebral plate, spinous process to be sewn to close on muscle and the articular process at present, but because sutured is insecure, structure comes back to preoperative position behind the normal generation vertebra, form spinal canal stenosis once more, and cause operative failure, thereby bring misery to patient, even can add heavy patient's the state of an illness.
[summary of the invention]
The purpose of this utility model is exactly will solve above-mentioned deficiency and provide a kind of cervical vertebra vertebral plate the one-sided internal fixation spare that opens the door, make the one-sided operation of opening the door of cervical vertebra vertebral plate after, structure is fixed on needed position behind the vertebra, keeps good effect of easing stress.
For achieving the above object, the utility model proposes the one-sided internal fixation spare that opens the door of a kind of cervical vertebra vertebral plate, form by fixture, screw, the middle part 3 that it is characterized in that fixture is circular arc, have bar shaped circular hole 2 on its upper surface, the left and right end of fixture bends to level or near horizontal level, the upper surface of fixture left end has two circular holes 6, the upper surface of fixture right-hand member has two circular holes 1, the left end at the middle part 3 of fixture is provided with an outward extending extension 5, and the space between extension 5 and the fixture left end portion constitutes " duckbilled " shape draw-in groove 4; Fixture and screw employing rustless steel or pure titanium or titanium alloy or absorbable biological material are made; Described circular hole internal diameter is less than the major diameter of thread of screw; Be provided with one " V " shape projection 7 between two circular holes of fixture left end lower surface.
Screw of the present utility model is fixed on the cervical lateral mass of the side of opening the door by the end of circular hole 1 with fixture, two circular holes 6 of screw by the fixture other end are fixed in the other end of fixture on the cervical vertebra vertebral plate of the side of opening the door, the fixture left end is provided with one " duckbilled " shape draw-in groove, the vertebral plate of the side of opening the door can be fixed in the draw-in groove.Screw aperture on the fixture can only screw in or screw out when screw passes screw like this, and can not advance and retreat automatically, to reach the locking purpose less than the major diameter of thread of screw.
This utility model is compared with prior art, and novel structure, simple after the one-sided operation of opening the door of cervical vertebra vertebral plate, is fixed on needed position with structure behind the vertebra, keeps good effect of easing stress.To the open the door vertebral plate of side of " duckbill " draw-in groove is fixed in the draw-in groove, and the success rate of operation height reduces the relapse rate of spinal canal stenosis, and patient more can early recovery, is worthy of popularization.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the upward view of Fig. 1.
Fig. 4 is user mode figure of the present utility model.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4,1 is circular hole, and 2 are the bar shaped circular hole, and 3 is the middle part, and 4 is draw-in groove, and 5 is the extension, and 6 is circular hole, and 7 is " V " shape projection, and 8 is lateral mass, and 9 is screw, and 10 is fixture, and 11 is vertebral plate.
[specific embodiment]
Referring to Fig. 1, Fig. 2, this utility model adopts Mould Machining to make molding, the middle part 3 of fixture is a circular arc, have bar shaped circular hole 2 on the fixture upper surface, a fixture left side, right end portion bends to level or near horizontal level, upper surface at the fixture left end has a left side, right two circular holes 6, be provided with one " V " shape projection 7 between two circular holes of its left end lower surface, before the upper surface of fixture right-hand member has, latter two circular hole 1, the left end at the middle part 3 of fixture is provided with an outward extending extension 5, and the space between extension 5 and the fixture left end portion forms " duckbilled " shape draw-in groove 4; This technology concerning those skilled in the art still more clearly.
Claims (4)
1. one-sided internal fixation spare that opens the door of cervical vertebra vertebral plate, form by fixture, screw, the middle part (3) that it is characterized in that fixture is circular arc, have bar shaped circular hole (2) on its upper surface, the left and right end of fixture bends to level or near horizontal level, the upper surface of fixture left end has two circular holes (6), the upper surface of fixture right-hand member has two circular holes (1), the left end at the middle part of fixture (3) is provided with an outward extending extension (5), and the space between extension (5) and the fixture left end portion constitutes " duckbilled " shape draw-in groove (4).
2. the one-sided internal fixation spare that opens the door of cervical vertebra vertebral plate according to claim 1 is characterized in that fixture and screw adopt rustless steel or pure titanium or titanium alloy or absorbable biological material to make.
3. the one-sided internal fixation spare that opens the door of cervical vertebra vertebral plate according to claim 1 is characterized in that the major diameter of thread of described circular hole internal diameter less than screw.
4. the one-sided internal fixation spare that opens the door of cervical vertebra vertebral plate according to claim 1 is characterized in that being provided with one " V " shape projection (7) between two circular holes of fixture left end lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520048124 CN2860376Y (en) | 2005-12-29 | 2005-12-29 | Internal fixator for single side entrance of cervical vertebrae plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520048124 CN2860376Y (en) | 2005-12-29 | 2005-12-29 | Internal fixator for single side entrance of cervical vertebrae plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2860376Y true CN2860376Y (en) | 2007-01-24 |
Family
ID=37658004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520048124 Expired - Fee Related CN2860376Y (en) | 2005-12-29 | 2005-12-29 | Internal fixator for single side entrance of cervical vertebrae plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2860376Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551868A (en) * | 2012-01-10 | 2012-07-11 | 刘观燚 | Posterior cervical spine single open door side block spinous process steel plate |
| CN104771218A (en) * | 2014-01-13 | 2015-07-15 | 四川国纳科技有限公司 | Cervical posterior approach Y-shaped plate and manufacturing method thereof |
| CN105266877A (en) * | 2015-11-26 | 2016-01-27 | 广州聚生生物科技有限公司 | Spinal column vertebral plate open-door fixing system |
| CN106037919A (en) * | 2016-05-16 | 2016-10-26 | 广州聚生生物科技有限公司 | Spine vertebral plate bridging system |
-
2005
- 2005-12-29 CN CN 200520048124 patent/CN2860376Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551868A (en) * | 2012-01-10 | 2012-07-11 | 刘观燚 | Posterior cervical spine single open door side block spinous process steel plate |
| CN104771218A (en) * | 2014-01-13 | 2015-07-15 | 四川国纳科技有限公司 | Cervical posterior approach Y-shaped plate and manufacturing method thereof |
| CN104771218B (en) * | 2014-01-13 | 2017-07-07 | 四川国纳科技有限公司 | Posterior cervical Y templates and preparation method thereof |
| CN105266877A (en) * | 2015-11-26 | 2016-01-27 | 广州聚生生物科技有限公司 | Spinal column vertebral plate open-door fixing system |
| CN106037919A (en) * | 2016-05-16 | 2016-10-26 | 广州聚生生物科技有限公司 | Spine vertebral plate bridging system |
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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 |