CN204814002U - Opening device - Google Patents
Opening device Download PDFInfo
- Publication number
- CN204814002U CN204814002U CN201520579797.5U CN201520579797U CN204814002U CN 204814002 U CN204814002 U CN 204814002U CN 201520579797 U CN201520579797 U CN 201520579797U CN 204814002 U CN204814002 U CN 204814002U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- rack
- tooth bar
- strut
- dilator
- 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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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model belongs to the technical field of medical instrument, specifically an opening device, include: rack and two covers establish on the rack, and can be on the rack sliding sleeve of horizontal slip, sliding sleeve one end is equipped with driven drive gear with rack toothing, be equipped with on the sliding sleeve with the rack on tooth complex stop mechanism, the sliding sleeve below is equipped with the supporting part of being convenient for strut the operation position. The utility model provides a pair of opening device, rack and two covers establish on the rack, and can be on the rack sliding sleeve of horizontal slip, can adjust convenient to use to one -sided supporting part according to actual conditions at the operation in -process to the distance that can strut is bigger, has brought huge advantage for the operation. The supporting part adopts three -section articulated form design, has guaranteed the supporting part and in the rack rotation relatively of actual operation process, can effectively avoid other apparatuses when the doctor operates, makes it have better performance.
Description
Technical field
This utility model belongs to technical field of medical instruments, specifically a kind of dilator.
Background technology
When doing spinal operation, need spinal vertebral to strut, visual area is exposed.Dilator comprises two support portions, one of them support portion is fixed on tooth bar, and another support portion is slidably arranged on tooth bar by sliding sleeve, only needs to be strutted by spinal vertebral by two support portions during operation, visual area is exposed, is regulated by the slip slided on tooth bar and strut distance.This dilator exist shortcoming be: need in operation process to strut distance adjust time, can only adjust two support portions, strutting distance can only adjust both sides simultaneously, and finds in actual operation process simultaneously, the stroke of this dilator is short, has certain limitation.
Utility model content
The technical problems to be solved in the utility model is: in order to solve existing dilator need in operation process to strut distance adjust time, can only adjust two support portions simultaneously, strut distance can only adjust both sides simultaneously, and find in actual operation process, the stroke of this dilator is short, there is certain circumscribed problem, this utility model provides a kind of dilator, tooth bar and two are set on tooth bar, and the sliding sleeve that can horizontally slip on tooth bar, can adjust one-sided support portion according to practical situation in operation process, easy to use, and the distance that can strut is larger, for operation brings huge cheap.
This utility model solves the technical scheme that its technical problem adopts: a kind of dilator, comprise: tooth bar and two to be set on tooth bar and the sliding sleeve that can horizontally slip on tooth bar, described sliding sleeve one end is provided with the travelling gear with tooth bar engaged transmission, described sliding sleeve is provided with the stop mechanism coordinated with teeth on tooth bar, is provided with the support portion being convenient to strut operative site below described sliding sleeve.
Particularly, described stop mechanism comprises the lock handle be hinged on sliding sleeve, is provided with the elastic connecting device being convenient to lock handle locking tooth bar between described sliding sleeve and lock handle.
As preferably, described elastic connecting device is torsion spring.
Concrete, described support portion comprises canned paragraph, linkage section, adapter sleeve and struts handle, and described canned paragraph one end is fixed on sliding sleeve bottom, and one end of the other end and linkage section is hinged, the other end of described linkage section and one end of adapter sleeve hinged, the described adapter sleeve other end with strut handle and be fixedly connected with.Ensure that support portion can racks turn relatively in actual operation process, can effectively avoid other apparatuses when doctor operates, make it have better serviceability.
The beneficial effects of the utility model are: a kind of dilator that this utility model provides, tooth bar and two to be set on tooth bar and the sliding sleeve that can horizontally slip on tooth bar, can adjust one-sided support portion according to practical situation in operation process, easy to use, and the distance that can strut is larger, for operation brings huge cheap.Support portion adopts three sections of hinged form designs, ensure that support portion can racks turn relatively in actual operation process, can effectively avoid other apparatuses, make it have better serviceability when doctor operates.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the structural representation of a kind of dilator of the present utility model;
Fig. 2 is the right view of Fig. 1.
In figure: 1. tooth bar, 2. sliding sleeve, 3. travelling gear, 4. stop mechanism, 5. support portion, 41. lock handle, 42. elastic connecting devices, 51. canned paragraphs, 52. linkage sections, 53. adapter sleeves, 54. strut handle.
Detailed description of the invention
By reference to the accompanying drawings this utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with this utility model.
A kind of dilator as shown in Figure 1 and Figure 2, comprise: tooth bar 1 and two to be set on tooth bar 1 and the sliding sleeve 2 that can horizontally slip on tooth bar 1, sliding sleeve 2 one end is provided with the travelling gear 3 with tooth bar 1 engaged transmission, sliding sleeve 2 is provided with the stop mechanism 4 coordinated with teeth on tooth bar 1, the support portion 5 being convenient to strut operative site is provided with below sliding sleeve 2, stop mechanism 4 comprises the lock handle 41 be hinged on sliding sleeve 2, is provided with and is convenient to the torsion spring 42 that lock handle 41 locks tooth bar 1 between sliding sleeve 2 and lock handle 41.
In a kind of detailed description of the invention, support portion 5 comprises canned paragraph 51, linkage section 52, adapter sleeve 53 and struts handle 54, canned paragraph 51 one end is fixed on sliding sleeve 2 bottom, one end of the other end and linkage section 52 is hinged, the other end of linkage section 52 and one end of adapter sleeve 53 hinged, adapter sleeve 53 other end with strut handle 54 and be fixedly connected with.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content in description, must determine its technical scope according to right.
Claims (4)
1. a dilator, it is characterized in that comprising: tooth bar (1) and two are set in the upper and sliding sleeve (2) that can horizontally slip on tooth bar (1) of tooth bar (1), described sliding sleeve (2) one end is provided with the travelling gear (3) with tooth bar (1) engaged transmission, described sliding sleeve (2) is provided with the stop mechanism (4) that teeth upper with tooth bar (1) coordinate, and described sliding sleeve (2) below is provided with the support portion (5) being convenient to strut operative site.
2. dilator as claimed in claim 1, it is characterized in that: described stop mechanism (4) comprises the lock handle (41) be hinged on sliding sleeve (2), between described sliding sleeve (2) and lock handle (41), be provided with the elastic connecting device (42) being convenient to lock handle (41) locking tooth bar (1).
3. dilator as claimed in claim 2, is characterized in that: described elastic connecting device (42) is torsion spring.
4. dilator as claimed in claim 1, it is characterized in that: described support portion (5) comprise canned paragraph (51), linkage section (52), adapter sleeve (53) and strut handle (54), described canned paragraph (51) one end is fixed on sliding sleeve (2) bottom, one end of the other end and linkage section (52) is hinged, the other end of described linkage section (52) and one end of adapter sleeve (53) hinged, described adapter sleeve (53) other end with strut handle (54) and be fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579797.5U CN204814002U (en) | 2015-08-04 | 2015-08-04 | Opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579797.5U CN204814002U (en) | 2015-08-04 | 2015-08-04 | Opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204814002U true CN204814002U (en) | 2015-12-02 |
Family
ID=54671652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520579797.5U Expired - Fee Related CN204814002U (en) | 2015-08-04 | 2015-08-04 | Opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204814002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107582112A (en) * | 2017-09-08 | 2018-01-16 | 山东威高骨科材料股份有限公司 | Device for spreading between a kind of centrum |
-
2015
- 2015-08-04 CN CN201520579797.5U patent/CN204814002U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107582112A (en) * | 2017-09-08 | 2018-01-16 | 山东威高骨科材料股份有限公司 | Device for spreading between a kind of centrum |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20200804 |