CN206424135U - A kind of Limited contact and anti-skidding patella claw - Google Patents
A kind of Limited contact and anti-skidding patella claw Download PDFInfo
- Publication number
- CN206424135U CN206424135U CN201621069030.9U CN201621069030U CN206424135U CN 206424135 U CN206424135 U CN 206424135U CN 201621069030 U CN201621069030 U CN 201621069030U CN 206424135 U CN206424135 U CN 206424135U
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- China
- Prior art keywords
- skidding
- buckle
- bending claws
- claw
- limited contact
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- Expired - Fee Related
Links
- 210000000078 claw Anatomy 0.000 title claims abstract description 109
- 210000004417 patella Anatomy 0.000 title claims abstract description 44
- 238000005452 bending Methods 0.000 claims abstract description 66
- 210000002435 tendon Anatomy 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 108010048734 sclerotin Proteins 0.000 abstract description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001171 synovial bursa Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model discloses a kind of Limited contact and anti-skidding patella claw, including：First buckle and the second buckle, first buckle is located at the top of the second buckle, one end of first buckle is provided with the first curved bend claw assembly, the other end opposite with the first curved bend claw assembly is provided with the second curved bend claw assembly on second buckle, the first curved bend claw assembly includes the first anti-skidding bending claws and the second anti-skidding bending claws positioned at the first anti-skidding bending claws both sides, the second curved bend claw assembly includes several 3rd anti-skidding bending claws, the first anti-skidding bending claws, prismatic structure is respectively adopted in second anti-skidding bending claws and the 3rd anti-skidding bending claws, concave side is sharp keen and is respectively arranged with anti-skidding sawtooth.By the above-mentioned means, Limited contact described in the utility model and anti-skidding patella claw, anti-skidding bending claws Limited contact kneecap sclerotin is so as to reduce to the sanguimotor interference of kneecap, and the second anti-skidding bending claws and the 3rd anti-skidding bending claws can carry out waving regulation using external splines.
Description
Technical field
The utility model is related to internal fixing device for patellar fracture field, more particularly to a kind of Limited contact and anti-skidding kneecap
Bone pawl.
Background technology
Patella claw is a kind of apparatus fixed in row patellar fracture suitable for bone surgery.Common patella claw structure is
It is made up of nut, overcoat and single hook, uses titanium alloy more, operation is simple.
Because size, the profile of kneecap have individual difference, the patella claw of same profile is difficult to good matching,
And the radian and kneecap outer surface radian of hook not exclusively coincide, and patella surface is with the soft tissue such as synovial bursa and manadesma, can be with
Single hook and kneecap sclerotin loose contact are caused, weakens frictional force between implant and kneecap, is easily shifted over, greatly reduces
Stability during use, so as to cause solid failure.Contact, remove for smooth face in addition, single hook is contacted with patella surface
Outside the frictional force of offer is not enough, press against soft tissue is also easy to, disturb the blood circulation of kneecap and repairing for influence patellar fracture
It is multiple.
Utility model content
The utility model changes face contact mainly solving the technical problems that provide a kind of Limited contact and anti-skidding patella claw
Contact, lifted the matching fixing device-kneecap and fixed stability for, reduce fixed failure problem.
In order to solve the above technical problems, the technical scheme that the utility model is used is：There is provided a kind of Limited contact simultaneously
Anti-skidding patella claw, including：First buckle and the second buckle, first buckle are located at the top of the second buckle, described first
One end of buckle is provided with the other end opposite with the first curved bend claw assembly on the first curved bend claw assembly, second buckle
The second curved bend claw assembly is provided with, the first curved bend claw assembly includes the first anti-skidding bending claws and anti-skidding curved positioned at first
Second anti-skidding bending claws of pawl both sides, the second curved bend claw assembly includes several 3rd anti-skidding bending claws, and described first is anti-skidding curved
Prismatic structure is respectively adopted in pawl, the second anti-skidding bending claws and the 3rd anti-skidding bending claws, and concave side is sharp keen and is respectively arranged with anti-slide saw
Tooth.
In one preferred embodiment of the utility model, it is anti-skidding that the bottom of first buckle is disposed with several first
It is provided with the top of convex tendon, second buckle and intersects corresponding second anti-skidding convex tendon with the first anti-skidding convex tendon.
In one preferred embodiment of the utility model, the first anti-skidding bending claws, the second anti-skidding bending claws and the 3rd are anti-skidding
The section of bending claws is respectively triangle.
In one preferred embodiment of the utility model, the front end difference of the second anti-skidding bending claws and the 3rd anti-skidding bending claws
External splines is provided with, first buckle and the second buckle end are respectively arranged with internal spline corresponding with external splines.
In one preferred embodiment of the utility model, the external splines extends to inside from corresponding internal spline bottom.
In one preferred embodiment of the utility model, a regulation waist is provided with first buckle along its length
Hole.
In one preferred embodiment of the utility model, screw thread corresponding with regulation waist hole is provided with second buckle
The bolt that regulation waist hole is provided through on hole, first buckle and is connected with screwed hole.
In one preferred embodiment of the utility model, the bolt is to be provided with dormant bolt, first buckle
One circle is located at the deep gouge at regulation waist hole edge, the head insertion deep gouge of the bolt.
In one preferred embodiment of the utility model, the bottom of the bolt is provided with downwardly directed centrum.
In one preferred embodiment of the utility model, the quantity of the 3rd anti-skidding bending claws is 1 ~ 5.
The beneficial effects of the utility model are：A kind of Limited contact and anti-skidding patella claw, spy that the utility model is pointed out
The first anti-skidding bending claws, the second anti-skidding bending claws and the 3rd anti-skidding bending claws of some triangular-sections can go directly kneecap basic unit, it is to avoid
The influence of patella surface attachment, and increase adhesive force using anti-skidding sawtooth, while reducing contact area, it is to avoid loosening is asked
Topic, limited contact is conducive to the growth of kneecap, in addition, the second anti-skidding bending claws and the 3rd anti-skidding bending claws can be entered using external splines
Row waves regulation, to adapt to the kneecap of different profiles, and length adjustment is convenient, adds matching between fixing device-kneecap.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Other accompanying drawings are obtained, wherein：
Fig. 1 is a kind of Limited contact of the utility model and the structural representation of the anti-skidding preferred embodiment of patella claw one；
Fig. 2 is Fig. 1 A-A to sectional view;
Fig. 3 is Fig. 2 B-B direction sectional view.
Embodiment
The technical scheme in the utility model embodiment will be clearly and completely described below, it is clear that described
Embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Fig. 1 to Fig. 3 is referred to, the utility model embodiment includes：
A kind of Limited contact and anti-skidding patella claw, including：First buckle 1 and the second buckle 2, first buckle 1
In the top of the second buckle 2, the bottom of first buckle 1 is disposed with the several first anti-skidding convex tendons 15, second button
The top of plate 2 is provided with intersects corresponding second anti-skidding convex tendon 22 with the first anti-skidding convex tendon 15, strengthens the first buckle 1 and second
Spacing, the convenient regulation for carrying out length of buckle 2.
One end of first buckle 1 is provided with the first curved bend claw assembly, second buckle 2 and the first curved bend
The opposite other end of claw assembly is provided with the second curved bend claw assembly, and the first curved bend claw assembly includes the first anti-skidding bending claws
11 and the second anti-skidding bending claws 12 positioned at the first anti-skidding both sides of bending claws 11, the second curved bend claw assembly includes 2 the 3rd
Anti-skidding bending claws 21, the first anti-skidding bending claws 11, the section of the second anti-skidding bending claws 21 of anti-skidding bending claws 12 and the 3rd are respectively triangle
Shape, triangle are as shown in figure 3, certain radian, bottom tip alignment kneecap so that the first anti-skidding bending claws 11, second can be arranged at top
The interior corners of the anti-skidding bending claws 21 of anti-skidding bending claws 12 and the 3rd can go directly kneecap basic unit, it is to avoid the shadow of patella surface attachment
Ring.
Prismatic structure is respectively adopted in the first anti-skidding bending claws 11, the second anti-skidding bending claws 21 of anti-skidding bending claws 12 and the 3rd,
Concave side is a sharp keen arris, and concave side is respectively arranged with anti-skidding sawtooth 24, and it is anti-skidding that anti-skidding sawtooth 24 is located at first respectively
In bending claws 11, the interior lateral edges of the second anti-skidding bending claws 21 of anti-skidding bending claws 12 and the 3rd, reinforcement and the combination of kneecap, it is to avoid first prevents
Slip between sliding bending claws 11, the second anti-skidding bending claws 21 of anti-skidding bending claws 12 and the 3rd and kneecap.
The front end of the anti-skidding bending claws 21 of the second anti-skidding bending claws 12 and the 3rd is respectively arranged with external splines 4, correspondence external splines 4
With the second anti-skidding integral structure of bending claws 12, the 3rd anti-skidding bending claws 21 use integral structure, described with corresponding external splines 4
One buckle 1 and the end of the second buckle 2 are respectively arranged with internal spline 3 corresponding with external splines 4, integral structure are respectively adopted, surely
Qualitative good, production facility, the cooperation of external splines 4 and internal spline 3 facilitates the angle of the second anti-skidding bending claws 21 of anti-skidding bending claws 12 and the 3rd
Degree regulation, using kneecap of different shapes, using titanium alloy, tissue compatibility is good.
The external splines 4 extends to inside from the corresponding bottom of internal spline 3, after installation, and internal spline 3 is to the bottom of external splines 4
The second anti-skidding end of bending claws 21 of anti-skidding bending claws 12 and the 3rd carry out compressing fixation, lifting regulation install convenience, it is to avoid loosen
Problem.
A regulation waist hole 13 is provided with first buckle 1 along its length, be provided with second buckle 2 with
Adjust and be provided through regulation waist hole 13 on the corresponding screwed hole 23 of waist hole 13, first buckle 1 and be connected with screwed hole 23
Bolt 5, the bolt 5 is dormant bolt, and the deep gouge that a circle is located at regulation waist hole 13 edge is provided with first buckle 1
14, the head insertion deep gouge of the bolt 5, it is to avoid protrude up.
The bottom of the bolt 5 is provided with downwardly directed centrum 51, and centrum 51 can be extended in kneecap sclerotin, enter one
Step avoids loosening and the sliding problem of bolt 5, lifts the postoperative stability used.
In summary, a kind of the utility model is pointed out Limited contact and anti-skidding patella claw, sound construction, length and angle
Degree regulation facility, it is adaptable to which the fixation of various patellar fractures, stability is high, is difficult displacement, reduces asking for postoperative fixed failure
Topic.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases
The technical field of pass, is similarly included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of Limited contact and anti-skidding patella claw, for the fixation of patellar fracture, including：First buckle and the second buckle,
First buckle is located at the top of the second buckle, it is characterised in that one end of first buckle is provided with the first curved bend
The other end opposite with the first curved bend claw assembly is provided with the second curved bend claw assembly, institute on claw assembly, second buckle
Stating the first curved bend claw assembly includes the first anti-skidding bending claws and the second anti-skidding bending claws positioned at the first anti-skidding bending claws both sides, described
Second curved bend claw assembly includes several 3rd anti-skidding bending claws, and the first anti-skidding bending claws, the second anti-skidding bending claws and the 3rd are anti-skidding
Prismatic structure is respectively adopted in bending claws, and concave side is sharp keen and is respectively arranged with anti-skidding sawtooth.
2. Limited contact according to claim 1 and anti-skidding patella claw, it is characterised in that the bottom of first buckle
It is disposed with the top of the several first anti-skidding convex tendons, second buckle to be provided with and intersects corresponding with the first anti-skidding convex tendon
Two anti-skidding convex tendons.
3. Limited contact according to claim 1 and anti-skidding patella claw, it is characterised in that the first anti-skidding bending claws,
The section of second anti-skidding bending claws and the 3rd anti-skidding bending claws is respectively triangle.
4. Limited contact according to claim 1 and anti-skidding patella claw, it is characterised in that the second anti-skidding bending claws and
The front end of 3rd anti-skidding bending claws is respectively arranged with external splines, and first buckle and the second buckle end are respectively arranged with and outer flower
The corresponding internal spline of key.
5. Limited contact according to claim 4 and anti-skidding patella claw, it is characterised in that the external splines is from corresponding
Internal spline bottom extends to inside.
6. Limited contact according to claim 1 and anti-skidding patella claw, it is characterised in that along length on first buckle
Degree direction is provided with a regulation waist hole.
7. Limited contact according to claim 6 and anti-skidding patella claw, it is characterised in that set on second buckle
There is the spiral shell for being provided through regulation waist hole on screwed hole corresponding with regulation waist hole, first buckle and being connected with screwed hole
Bolt.
8. Limited contact according to claim 7 and anti-skidding patella claw, it is characterised in that the bolt is countersunk head spiral shell
The deep gouge that a circle is located at regulation waist hole edge, the head insertion deep gouge of the bolt are provided with bolt, first buckle.
9. Limited contact according to claim 7 and anti-skidding patella claw, it is characterised in that the bottom of the bolt is set
There is downwardly directed centrum.
10. Limited contact according to claim 1 and anti-skidding patella claw, it is characterised in that the 3rd anti-skidding bending claws
Quantity be 1 ~ 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621069030.9U CN206424135U (en) | 2016-09-22 | 2016-09-22 | A kind of Limited contact and anti-skidding patella claw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621069030.9U CN206424135U (en) | 2016-09-22 | 2016-09-22 | A kind of Limited contact and anti-skidding patella claw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206424135U true CN206424135U (en) | 2017-08-22 |
Family
ID=59588242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621069030.9U Expired - Fee Related CN206424135U (en) | 2016-09-22 | 2016-09-22 | A kind of Limited contact and anti-skidding patella claw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206424135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377307A (en) * | 2016-09-22 | 2017-02-08 | 沈影超 | Limited contact type skid-proof patella claw |
-
2016
- 2016-09-22 CN CN201621069030.9U patent/CN206424135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377307A (en) * | 2016-09-22 | 2017-02-08 | 沈影超 | Limited contact type skid-proof patella claw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 |