CN204655014U - A kind of cervical vertebra retractor - Google Patents
A kind of cervical vertebra retractor Download PDFInfo
- Publication number
- CN204655014U CN204655014U CN201520291911.4U CN201520291911U CN204655014U CN 204655014 U CN204655014 U CN 204655014U CN 201520291911 U CN201520291911 U CN 201520291911U CN 204655014 U CN204655014 U CN 204655014U
- Authority
- CN
- China
- Prior art keywords
- tooth bar
- worm
- worm gear
- sliding sleeve
- cervical vertebra
- 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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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
This utility model relates to a kind of cervical vertebra retractor, comprise tooth bar, be arranged on the fixing spike of described tooth bar head, be set in the sliding sleeve on described tooth bar, the movable supporting feet be connected with described sliding sleeve, be arranged on the governor motion on described sliding sleeve, described movable supporting feet and fixing spike are equipped with screw mounting hole, described governor motion comprises adjustment seat, described adjustment seat is provided with and regulates chamber, described adjustment intracavity is provided with the adjusting gear engaged with described tooth bar, described adjusting gear is connected with coaxial worm gear, described worm gear and the worm engaging being arranged on described adjustment intracavity, described worm screw is connected with control handle, described worm axis and described worm gear axes normal.This utility model is by being arranged to worm gear structure by governor motion, and it has auto-lock function, easy and simple to handle, and only need singlehanded adjustment, structure is simple, effectively prevents misoperation; Described worm axis and described worm gear axes normal, avoid control handle and tissue to interfere.
Description
Technical field
This utility model relates to orthopedic medical device, particularly a kind of cervical vertebra retractor.
Background technology
Retractor for centrum of cervical vertebra is a kind of apparatus conventional in operation, when Orthopedic correction is performed the operation, retracts cervical vertebral body and uses.Current existing retractor for centrum of cervical vertebra, comprise lock tooth bar, the bottom of cylindrical fixing feet is fixedly linked with lock tooth bar, lock tooth bar is provided with and locks tooth bar and to slide the lock toothholder be connected, the bottom of cylindrical mobile foot is fixedly linked with lock toothholder, lock toothholder is provided with for controlling the button latch of locking toothholder and locking tooth bar relative position relation, lock toothholder position should be regulated button latch is regulated again when operating, complex operation, is easy to misoperation, and cylindrical fixing feet head corner angle easy damaged tissue.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of cervical vertebra retractor.
This utility model solves the technical scheme that its technical problem adopts: described a kind of cervical vertebra retractor, comprise tooth bar, be arranged on the fixing spike of described tooth bar head, be set in the sliding sleeve on described tooth bar, the movable supporting feet be connected with described sliding sleeve, be arranged on the governor motion on described sliding sleeve, described movable supporting feet and fixing spike are equipped with screw mounting hole, described governor motion comprises adjustment seat, described adjustment seat is provided with and regulates chamber, described adjustment intracavity is provided with the adjusting gear engaged with described tooth bar, described adjusting gear is connected with coaxial worm gear, described worm gear and the worm engaging being arranged on described adjustment intracavity, described worm screw is connected with control handle, described worm axis and described worm gear axes normal.
By governor motion is arranged to worm gear structure in above-mentioned design, it has auto-lock function, easy and simple to handle, and only need singlehanded adjustment, structure is simple, effectively prevents misoperation; Described worm axis and described worm gear axes normal, avoid control handle and tissue to interfere.
As the further improvement of the design, described control handle is butterfly sheet metal, the smooth of the edge, is convenient to regulate.
As the further improvement of the design, described movable supporting feet and rigid staybolt foot portion are provided with arc angling.Described arc angling avoids tissue of damaging.
As the further improvement of the design, described tooth bar is helical teeth and is stepped tooth, adjacent flank of tooth angle 40 °, and regulate steadily, the tooth bar intensity large life-span is long, prevents movable supporting feet from loosening.
The beneficial effects of the utility model are: this utility model is by being arranged to worm gear structure by governor motion, and it has auto-lock function, easy and simple to handle, and only need singlehanded adjustment, structure is simple, effectively prevents misoperation; Described worm axis and described worm gear axes normal, avoid control handle and tissue to interfere.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is Facad structure schematic diagram of the present utility model;
Fig. 2 is side structure schematic diagram of the present utility model.
1. fixing spike, 2. movable supporting feet, 3. sliding sleeve, 4. tooth bar, 5. control handle, 6. worm gear, 7. adjusting gears, 8. regulate chamber, 9. screw mounting hole, 10. arc angling, 11. adjustment seats, 12. worm screws in the drawings.
Detailed description of the invention
This utility model is described in detail, illustrative examples wherein and illustrate and be only used for explaining this utility model below in conjunction with accompanying drawing and specific embodiment, but not as to restriction of the present utility model.
Embodiment: described a kind of cervical vertebra retractor, comprise tooth bar 4, be arranged on the fixing spike 1 of described tooth bar 4 head, be set in the sliding sleeve 3 on described tooth bar 4, the movable supporting feet 2 be connected with described sliding sleeve 3, be arranged on the governor motion on described sliding sleeve 3, described movable supporting feet 2 and fixing spike 1 are equipped with screw mounting hole 9, described governor motion comprises adjustment seat 11, described adjustment seat 11 is provided with and regulates chamber 8, the adjusting gear 7 engaged with described tooth bar 4 is provided with in described adjustment chamber 8, described adjusting gear 7 is connected with coaxial worm gear 6, described worm gear 6 engages with the worm screw 12 be arranged in described adjustment chamber 8, described worm screw 12 is connected with control handle 5, described worm screw 12 axis and described worm gear 6 axes normal.
By governor motion being arranged to worm gear 6 worm screw 12 structure in above-mentioned design, it has auto-lock function, easy and simple to handle, and only need singlehanded adjustment, structure is simple, effectively prevents misoperation; Described worm screw 12 axis and described worm gear 6 axes normal, avoid control handle 5 and tissue to interfere.
As the further improvement of the design, described control handle 5 is butterfly sheet metal, the smooth of the edge, is convenient to regulate.
As the further improvement of the design, described movable supporting feet 2 and fixing spike 1 end are provided with arc angling 10.Described arc angling 10 avoids tissue of damaging.
As the further improvement of the design, described tooth bar 4 is helical teeth and is stepped tooth, adjacent flank of tooth angle 40 °, and regulate steadily, the tooth bar semi-finals degree large life-span is long, prevents movable supporting feet 2 from loosening.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize this utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. a cervical vertebra retractor, comprise tooth bar, be arranged on the fixing spike of described tooth bar head, be set in the sliding sleeve on described tooth bar, the movable supporting feet be connected with described sliding sleeve, be arranged on the governor motion on described sliding sleeve, described movable supporting feet and fixing spike are equipped with screw mounting hole, it is characterized in that, described governor motion comprises adjustment seat, described adjustment seat is provided with and regulates chamber, described adjustment intracavity is provided with the adjusting gear engaged with described tooth bar, described adjusting gear is connected with coaxial worm gear, described worm gear and the worm engaging being arranged on described adjustment intracavity, described worm screw is connected with control handle, described worm axis and described worm gear axes normal.
2. a kind of cervical vertebra retractor according to claim 1, is characterized in that, described control handle is butterfly sheet metal.
3. a kind of cervical vertebra retractor according to claim 1, is characterized in that, described movable supporting feet and rigid staybolt foot portion are provided with arc angling.
4. a kind of cervical vertebra retractor according to claim 1, is characterized in that, described tooth bar is helical teeth and is stepped tooth, adjacent flank of tooth angle 40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291911.4U CN204655014U (en) | 2015-05-08 | 2015-05-08 | A kind of cervical vertebra retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291911.4U CN204655014U (en) | 2015-05-08 | 2015-05-08 | A kind of cervical vertebra retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204655014U true CN204655014U (en) | 2015-09-23 |
Family
ID=54125461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520291911.4U Expired - Fee Related CN204655014U (en) | 2015-05-08 | 2015-05-08 | A kind of cervical vertebra retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204655014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725665A (en) * | 2017-02-27 | 2017-05-31 | 钱继波 | A kind of thorax cavity retractor |
| CN108175459A (en) * | 2018-01-26 | 2018-06-19 | 梁经明 | A kind of general surgery muscle pull device |
-
2015
- 2015-05-08 CN CN201520291911.4U patent/CN204655014U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725665A (en) * | 2017-02-27 | 2017-05-31 | 钱继波 | A kind of thorax cavity retractor |
| CN108175459A (en) * | 2018-01-26 | 2018-06-19 | 梁经明 | A kind of general surgery muscle pull device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20170508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |