CN204655013U - A kind of mastoid retractor - Google Patents
A kind of mastoid retractor Download PDFInfo
- Publication number
- CN204655013U CN204655013U CN201520291865.8U CN201520291865U CN204655013U CN 204655013 U CN204655013 U CN 204655013U CN 201520291865 U CN201520291865 U CN 201520291865U CN 204655013 U CN204655013 U CN 204655013U
- Authority
- CN
- China
- Prior art keywords
- clamp handle
- bar
- lock tooth
- head
- regulating block
- 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
This utility model relates to a kind of mastoid retractor, comprises left clamp handle, right clamp handle, a left side struts bar, the right side struts bar, left clamp handle and right clamp handle hinged, left clamp handle is provided with lock tooth bar, and right clamp handle is provided with lock tooth plate; A left side struts the afterbody of bar and left clamp handle is rotatedly connected, and the right side struts the afterbody of bar and right clamp handle is rotatedly connected, and the head strutting bar on a left side is set up in parallel left stay, and the head strutting bar on the right side arranges the right stay interlaced with left stay; A left side struts bar afterbody and the right side and struts bar afterbody and be equipped with adjusting gear, and left clamp handle and right clamp handle head are equipped with regulating block, and regulating block is provided with regulating tooth towards adjusting gear side, and regulating block and left clamp handle and right clamp handle head are connected with regulating spring.This utility model is by strutting bar and the right bar that struts is set to rotating movable part and is convenient to regulate the angle be applicable to when performing the operation by a left side, adjusting gear and regulating block strut bar and the right side to a left side to strut lever lock dead, prevents malfunction and structure is simple; Lock tooth plate is arranged in right clamp handle, convenient operation.
Description
Technical field
This utility model relates to orthopedic medical device field, particularly a kind of mastoid retractor.
Background technology
In orthopedic medical device industry, the most common and the most useful orthopaedics instrument when mastoid retractor is operation, the joint part of mastoid retractor is then one of position of the most crux of bone surgery.Mastoid retractor introduced in the market is all a kind of shape, and the joint part of head can not bend, and causing has angle to be that in body, operation can not deeply be entered at some.And easily failure is locked in operation process.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of mastoid retractor.
This utility model solves the technical scheme that its technical problem adopts: a kind of mastoid retractor, comprise the clamp handle assembly that is made up of left clamp handle and right clamp handle and by a left side strut bar with right strut that bar forms strut bar assembly, described left clamp handle and right clamp handle hinged, left clamp handle is provided with lock tooth bar, right clamp handle is provided with the lock tooth plate matched with described lock tooth bar; A described left side struts the afterbody of bar and left clamp handle is rotatedly connected, and the right side struts the afterbody of bar and right clamp handle is rotatedly connected, and the head strutting bar on a left side is set up in parallel left stay, and the head strutting bar on the right side arranges the right stay interlaced with left stay; A described left side struts bar afterbody and the described right side and struts bar afterbody and be equipped with adjusting gear, described left clamp handle and right clamp handle head are equipped with regulating block, described regulating block is provided with regulating tooth towards adjusting gear side, described regulating block and described left clamp handle and right clamp handle head are connected with regulating spring, described regulating spring to regulating block elastic force towards adjusting gear, namely described regulating block and adjusting gear press together and prevent adjusting gear from rotating by described regulating spring.
By a left side being strutted bar and the right bar that struts is set to rotating movable part and is convenient to regulate the angle be applicable to when performing the operation in above-mentioned design, described adjusting gear and regulating block strut bar and the right side to a left side to strut lever lock dead, prevent malfunction and structure is simple; Described lock tooth plate is arranged in right clamp handle, convenient operation.
As the further improvement of the design, described left clamp handle and right clamp handle head are equipped with U-type groove, and described adjusting gear is arranged in U-type groove, described adjusting gear and described U-type groove side hinged, described regulating spring is arranged at the bottom of U-type groove, and described regulating block is arranged in U-type groove.Described U-type groove leads to regulating block and can strut the stronger support force of bar raising for the left bar that strut with right, prevents rocking in operation process.
As the further improvement of the design, described regulating block both sides are provided with claw, and described catch jacket is located at described left clamp handle and right clamp handle head.Described claw to described regulating block carry out guiding prevent regulating block partially song prevent regulating spring from ejecting simultaneously.
As the further improvement of the design, described lock tooth plate head and described right clamp handle hinged, described lock tooth plate afterbody is provided with spanner, described lock tooth plate and described lock tooth bar are provided with the lock tooth body cooperatively interacted, described lock tooth body is helical teeth, described lock tooth body two lateral tooth flank angle is 51 °, and the crown spacing of adjacent two lock tooth bodies is 1.78mm, and the crown line of described lock tooth body is cambered surface and radius is 26mm.To locking the left clamp handle of control convenient operation of tooth body angle and size and right clamp handle action, and improve the service life of lock tooth body, stability locked by raising lock tooth plate and described lock tooth bar.
As the further improvement of the design, spring leaf is provided with inside described right clamp handle, described lock tooth plate head is provided with prismatic face, fit in described spring leaf and side, described prismatic face, the corner angle movement locus in described prismatic face is outside spring leaf, namely, when described lock tooth plate rotates, described corner angle extrude described spring leaf.Described prismatic face and spring leaf prevent lock tooth plate from threading off with lock tooth bar, and self structure is simply convenient to cleaning.
The beneficial effects of the utility model are: this utility model is by strutting bar and the right bar that struts is set to rotating movable part and is convenient to regulate the angle be applicable to when performing the operation by a left side, described adjusting gear and regulating block strut bar and the right side to a left side to strut lever lock dead, prevent malfunction and structure is simple; Described lock tooth plate is arranged in right clamp handle, convenient operation.
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 schematic view of the present utility model.
Fig. 3 is that a left side of the present utility model struts bar and left clamp handle connecting portion schematic diagram.
1. right sides strut bar in the drawings, 2.U type groove, 3. regulating spring, 4. right clamp handle, 5. lock tooth bar, 6. lock tooth plate, 7. corner angle, 8. spring leaf, 9. spanner, 10. adjusting gear, 11. left clamp handles, 12. left sides strut bar, 13. claws, 14. left stays, 15. right stays, 16. regulating blocks, 17. regulating teeth, 18. lock tooth bodies, 19. prismatic faces.
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: a kind of mastoid retractor, comprise the clamp handle assembly that is made up of left clamp handle 11 and right clamp handle 4 and by a left side strut bar 12 with right strut that bar 1 forms strut bar assembly, described left clamp handle 11 is hinged with right clamp handle 4, left clamp handle 11 is provided with lock tooth bar 5, right clamp handle 4 is provided with the lock tooth plate 6 matched with described lock tooth bar 5; A described left side struts the afterbody of bar 12 and left clamp handle 11 is rotatedly connected, and the right side struts the afterbody of bar 1 and right clamp handle 4 is rotatedly connected, and the head strutting bar 12 on a left side is set up in parallel left stay 14, and the head strutting bar 1 on the right side arranges the right stay 15 interlaced with left stay 14; A described left side struts bar 12 afterbody and the described right side and struts bar 1 afterbody and be equipped with regulating tooth 17 and take turns 10, described left clamp handle 11 is equipped with regulating block 16 with right clamp handle 4 head, described regulating block 16 is taken turns 10 sides towards regulating tooth 17 and is provided with regulating tooth 17, described regulating block 16 is connected with regulating spring 3 with described left clamp handle 11 with right clamp handle 4 head, described regulating spring 3 pairs of regulating block 16 elastic force take turns 10 towards regulating tooth 17, namely described regulating block 16 and regulating tooth 17 are taken turns 10 and are pressed together and prevent regulating tooth 17 from taking turns 10 rotations by described regulating spring 3.
By a left side being strutted bar 12 and the right bar 1 that struts is set to rotating movable part and is convenient to regulate the angle be applicable to when performing the operation in above-mentioned design, described regulating tooth 17 take turns 10 and regulating block 16 bar 12 and the right side are strutted to a left side to strut bar 1 locked, prevent malfunction and structure is simple; Described lock tooth plate 6 is arranged in right clamp handle 4, convenient operation.
As the further improvement of the design, described left clamp handle 11 is equipped with U-type groove 2 with right clamp handle 4 head, described regulating tooth 17 is taken turns 10 and is arranged in U-type groove 2, described regulating tooth 17 take turns 10 with described U-type groove 2 side hinged, described regulating spring 3 is arranged on U-type groove 2 end, and described regulating block 16 is arranged in U-type groove 2.Described U-type groove 2 pairs of regulating blocks 16 lead and can strut bar 12 for left and rightly strut bar 1 and improve stronger support force, prevent rocking in operation process.
As the further improvement of the design, described regulating block 16 both sides are provided with claw 13, and described claw 13 is set in described left clamp handle 11 and right clamp handle 4 head.Described claw 13 to described regulating block 16 carry out guiding prevent regulating block 16 partially song prevent regulating spring 3 from ejecting simultaneously.
As the further improvement of the design, described lock tooth plate 6 head and described right clamp handle 4 hinged, described lock tooth plate 6 afterbody is provided with spanner 9, described lock tooth plate 6 is provided with described lock tooth bar 5 the lock tooth body 18 cooperatively interacted, described lock tooth body 18 is helical teeth, described lock tooth body 18 liang of lateral tooth flank angles are 51 °, and the crown spacing of adjacent two lock tooth bodies 18 is 1.78mm, and the crown line of described lock tooth body 18 is cambered surface and radius is 26mm.To the left clamp handle of control convenient operation 11 and the action of right clamp handle 4 of locking tooth body 18 angle and size, and improve the service life of lock tooth body 18, raising is locked tooth plate 6 and is locked stability with described lock tooth bar 5.
As the further improvement of the design, spring leaf 8 is provided with inside described right clamp handle 4, described lock tooth plate 6 head is provided with prismatic face 19, described spring leaf 8 is fitted with side, described prismatic face 19, corner angle 7 movement locus in described prismatic face 19 is outside spring leaf 8, namely, when described lock tooth plate 6 rotates, described corner angle 7 extrude described spring leaf 8.Described prismatic face 19 and spring leaf 8 prevent lock tooth plate 6 from threading off with lock tooth bar 5, and self structure is simply convenient to cleaning.
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 (5)
1. a mastoid retractor, comprise the clamp handle assembly that is made up of left clamp handle and right clamp handle and by a left side strut bar with right strut that bar forms strut bar assembly, described left clamp handle and right clamp handle hinged, left clamp handle is provided with lock tooth bar, right clamp handle is provided with the lock tooth plate matched with described lock tooth bar; A described left side struts the afterbody of bar and left clamp handle is rotatedly connected, and the right side struts the afterbody of bar and right clamp handle is rotatedly connected, and the head strutting bar on a left side is set up in parallel left stay, and the head strutting bar on the right side arranges the right stay interlaced with left stay; It is characterized in that, a described left side struts bar afterbody and the described right side and struts bar afterbody and be equipped with adjusting gear, described left clamp handle and right clamp handle head are equipped with regulating block, described regulating block is provided with regulating tooth towards adjusting gear side, described regulating block and described left clamp handle and right clamp handle head are connected with regulating spring, described regulating spring to regulating block elastic force towards adjusting gear, namely described regulating block and adjusting gear press together and prevent adjusting gear from rotating by described regulating spring.
2. a kind of mastoid retractor according to claim 1, it is characterized in that, described left clamp handle and right clamp handle head are equipped with U-type groove, described adjusting gear is arranged in U-type groove, described adjusting gear and described U-type groove side hinged, described regulating spring is arranged at the bottom of U-type groove, and described regulating block is arranged in U-type groove.
3. a kind of mastoid retractor according to claim 1, is characterized in that, described regulating block both sides are provided with claw, and described catch jacket is located at described left clamp handle and right clamp handle head.
4. a kind of mastoid retractor according to claim 1, it is characterized in that, described lock tooth plate head and described right clamp handle hinged, described lock tooth plate afterbody is provided with spanner, described lock tooth plate and described lock tooth bar are provided with the lock tooth body cooperatively interacted, and described lock tooth body is helical teeth, and described lock tooth body two lateral tooth flank angle is 51 °, the crown spacing of adjacent two lock tooth bodies is 1.78mm, and the crown line of described lock tooth body is cambered surface and radius is 26mm.
5. a kind of mastoid retractor according to claim 1, it is characterized in that, spring leaf is provided with inside described right clamp handle, described lock tooth plate head is provided with prismatic face, fit in described spring leaf and side, described prismatic face, the corner angle movement locus in described prismatic face is outside spring leaf, and when namely described lock tooth plate rotates, described corner angle extrude described spring leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291865.8U CN204655013U (en) | 2015-05-08 | 2015-05-08 | A kind of mastoid retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291865.8U CN204655013U (en) | 2015-05-08 | 2015-05-08 | A kind of mastoid retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204655013U true CN204655013U (en) | 2015-09-23 |
Family
ID=54125460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520291865.8U Expired - Fee Related CN204655013U (en) | 2015-05-08 | 2015-05-08 | A kind of mastoid retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204655013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106491214A (en) * | 2016-12-15 | 2017-03-15 | 吉林大学 | A kind of medical mastoid process dilator of adjustable type |
-
2015
- 2015-05-08 CN CN201520291865.8U patent/CN204655013U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106491214A (en) * | 2016-12-15 | 2017-03-15 | 吉林大学 | A kind of medical mastoid process dilator of adjustable type |
| CN106491214B (en) * | 2016-12-15 | 2023-08-01 | 吉林大学 | Adjustable medical mastoid expander |
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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 |