CN205494088U - Artifical ring pivot joint - Google Patents
Artifical ring pivot joint Download PDFInfo
- Publication number
- CN205494088U CN205494088U CN201620102306.2U CN201620102306U CN205494088U CN 205494088 U CN205494088 U CN 205494088U CN 201620102306 U CN201620102306 U CN 201620102306U CN 205494088 U CN205494088 U CN 205494088U
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- Prior art keywords
- pivot joint
- stator
- rotor
- rivet nut
- artificial
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Abstract
The utility model discloses an artifical ring pivot joint, it includes the staple body, adversion kinetoplast, outer rotor and stationary blade, the upper portion rigid coupling of adversion kinetoplast and the staple body, the stationary blade has two and connects flanks, and the stationary blade is through two positions of connecting between the flanks and outer rotor rigid couplings, the adversion kinetoplast forms the normal running fit structure with outer rotor. To encircling the patient who damages in the pivot joint, can implant this artifical ring pivot joint when performing the operation, in soon the vertebra of first cervical vertebra is followed closely by the staple body, to fix two connection flanks of stationary blade with the both sides of anterior tubercle respectively, the normal running fit structure between adversion kinetoplast and the outer rotor can realize the rotation between the human head and the truck position.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of artificial pivot joint.
Background technology
Pivot joint is in upper cervical spine position, plays support and the rotary action of human body head, for cervical vertebra
Sustaining damage or for the patient of pathological changes, need to carry out operation and carry out correcting, repairing, its operation risk is relatively big,
Costly.
For the patient that part is serious, after operative correction or reparation, may just still be unable to reach
Normal physiological status, will also result in long-term misery for patients.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of artificial pivot joint,
In the case of patient's function cannot be recovered, this artificial pivot joint can be used, it is achieved patients head is normal
Rotate, reduce the misery of patient.
Its technical scheme is as follows.
Artificial pivot joint, including fixing rivet nut, interior rotor, outer rotor and stator, interior rotor
Affixed with the top of fixing rivet nut, stator has two and connects flank, and stator connects flank by two
Between position affixed with outer rotor；Interior rotor forms, with outer rotor, the structure that is rotatably assorted.
Technical scheme further to this utility model illustrates below.
The outer surface of described interior rotor is class dome shape, and the inwall of described outer rotor is also class dome shape,
Both mutually form the structure that is rotatably assorted.
The outer end connecting flank of described stator is relative to the downward deviation in the middle part of stator.
Described stator connect flank outer end relative to the middle part downward bias knuckle degree of stator be 1 degree extremely
30 degree.
The outer end of two connection flanks of described stator is provided with fixing hole, and the distance between two fixing holes is
15mm to 30mm.
Also including cushion cap, cushion cap is affixed with described fixing rivet nut, and cushion cap is just being positioned at described rotor
Lower section, the upper surface of cushion cap is upper loading end.
Described cushion cap is land, and for perforation in the middle part of it, described fixing rivet nut passes this perforation.
The lower surface of described interior rotor is lower loading end, and on this, loading end, lower loading end are plane, on
Loading end contacts cooperation with lower loading end.
The upper end of described fixing rivet nut is vertical section, and its lower end forward side bends and forms bending section.
Described bending section is 1 degree to 30 degree relative to the angle of described vertical section.
For the patient that pivot joint damages, this artificial pivot joint can be implanted when operation, will
Fixing rivet nut hammers in the vertebra of first cervical vertebra, by the two of stator connect flanks respectively with anterior tubercle
Both sides are fixed, and the structure that is rotatably assorted between interior rotor and outer rotor can realize human body head and trunk
Rotation between position.
Accompanying drawing explanation
Fig. 1 is the front view of artificial pivot joint described in this utility model embodiment；
Fig. 2 is the side view of artificial pivot joint described in this utility model embodiment；
Description of reference numerals:
10, interior rotor, 20, outer rotor, 30, fixing rivet nut, 31, vertical section, 32, bending section,
40, stator, 41, connect flank, 42, fixing hole, 50, cushion cap, 51, perforation.
Detailed description of the invention
Below embodiment of the present utility model is described in detail.
As shown in Figure 1 and Figure 2, artificial pivot joint, including fixing rivet nut 30, interior rotor 10, turn outward
Kinetoplast 20 and stator 40, interior rotor 10 is affixed with the top of fixing rivet nut 30, and stator 40 has
Two connect flank 41, and stator 40 is by two positions connected between flank 41 and outer rotor 20
Affixed；Interior rotor 10 forms, with outer rotor 20, the structure that is rotatably assorted.
For the patient that pivot joint damages, this artificial pivot joint can be implanted when operation, will
Fixing rivet nut 30 hammers in the vertebra of first cervical vertebra, by two connection flanks 41 of stator 40 respectively
Fixing with the both sides of anterior tubercle, the structure that is rotatably assorted between interior rotor 10 and outer rotor 20 can be real
Existing rotation between human body head and metastomium.
Wherein, the outer surface of described interior rotor 10 is class dome shape, and the inwall of described outer rotor 20 is also
For class dome shape, both mutually form the structure that is rotatably assorted.
The outer end connecting flank 41 of described stator 40 is relative to the middle part of stator 40 downward deviation (its
Deviation angle is 1 degree to 30 degree), after two connect the downward deviation of flank 41, two can be made to connect side
The wing 41 is fixing with the both sides of anterior tubercle easily to be connected, and also reduces interference；Two companies of described stator 40
The outer end connecing flank 41 is provided with fixing hole 42, and the distance between two fixing holes 42 is 15mm to 30mm.
Also including cushion cap 50, cushion cap 50 is affixed with described fixing rivet nut 30, and cushion cap 50 is positioned at described
The underface of interior rotor 10, the upper surface of cushion cap 50 is upper loading end；Described cushion cap 50 is land,
For perforation 51 in the middle part of it, described fixing rivet nut 30 is through this perforation 51；The following table of described interior rotor 10
Face is lower loading end, and on this, loading end, lower loading end are plane, and upper loading end contacts with lower loading end joins
Close.The section of cushion cap 50 forms taper type, and owing to needing to bear the weight of whole head herein, setting is held
After platform 50, the stress at this can be alleviated and concentrate, improve the service life of this artificial pivot joint.
The upper end of described fixing rivet nut 30 is vertical section 31, and its lower end forward side bends and forms bending section 32,
Described bending section 32 is 1 degree to 30 degree relative to the angle of described vertical section 31.Fix the upper of rivet nut 30
End is vertical shape, rotor 10 and the installation of cushion cap 50 in can facilitating, the lower end of fixing rivet nut 30
Forward side bend, when this fixing rivet nut 30 hammers into atlas, can avoid this fixing rivet nut 30 for
Nerve and the damage (nerve and blood vessel herein are the most crucial) of blood vessel, and can ensure that bending section 32 is suitable
The bone trend atlas hammers into, fixing more reliable.
These are only specific embodiment of the utility model, do not limit protection domain of the present utility model with this；
Any replacement made on the basis of not violating this utility model design and improvement, all belong to of the present utility model
Protection domain.
Claims (10)
1. artificial pivot joint, it is characterised in that include fixing rivet nut, interior rotor, outer rotor and consolidate
Stator, interior rotor is affixed with the top of fixing rivet nut, and stator has two and connects flank, and stator leads to
Cross two positions connected between flank affixed with outer rotor；Interior rotor and outer rotor form rotation and join
Close structure.
2. the most artificial pivot joint, it is characterised in that the outer surface of described interior rotor
For class dome shape, the inwall of described outer rotor is also class dome shape, and both mutually form the structure that is rotatably assorted.
3. the most artificial pivot joint, it is characterised in that the connection flank of described stator
Outer end relative to the downward deviation in the middle part of stator.
4. the most artificial pivot joint, it is characterised in that the connection flank of described stator
Outer end be 1 degree to 30 degree relative to the middle part downward bias knuckle degree of stator.
5. artificial pivot joint as according to any one of Claims 1-4, it is characterised in that described fixing
The outer end of two connection flanks of sheet is provided with fixing hole, and the distance between two fixing holes is 15mm to 30mm.
6. artificial pivot joint as according to any one of Claims 1-4, it is characterised in that also include
Cushion cap, cushion cap is affixed with described fixing rivet nut, and cushion cap is positioned at the underface of described rotor, cushion cap
Upper surface is upper loading end.
7. the most artificial pivot joint, it is characterised in that described cushion cap is land, wherein
Portion is perforation, and described fixing rivet nut passes this perforation.
8. the most artificial pivot joint, it is characterised in that the lower surface of described interior rotor
For lower loading end, on this, loading end, lower loading end are plane, and upper loading end contacts cooperation with lower loading end.
9. artificial pivot joint as according to any one of Claims 1-4, it is characterised in that described fixing
The upper end of rivet nut is vertical section, and its lower end forward side bends and forms bending section.
10. the most artificial pivot joint, it is characterised in that described bending section is relative to institute
The angle stating vertical section is 1 degree to 30 degree.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015208371476 | 2015-10-26 | ||
| CN201520837147 | 2015-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205494088U true CN205494088U (en) | 2016-08-24 |
Family
ID=56724811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620102306.2U Active CN205494088U (en) | 2015-10-26 | 2016-02-01 | Artifical ring pivot joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205494088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596123A (en) * | 2015-10-26 | 2016-05-25 | 郑明辉 | Artificial atlantoaxial joint |
-
2016
- 2016-02-01 CN CN201620102306.2U patent/CN205494088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596123A (en) * | 2015-10-26 | 2016-05-25 | 郑明辉 | Artificial atlantoaxial joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 511300 316, building D, chuangyue incubator, No. 10, Financial Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong Patentee after: Zheng Minghui Address before: 510665 room 904, No. 66, Tangde East 2nd Street, Tianhe District, Guangzhou, Guangdong Patentee before: Zheng Minghui |
|
| CP02 | Change in the address of a patent holder |