CN106377307A - Limited contact type skid-proof patella claw - Google Patents
Limited contact type skid-proof patella claw Download PDFInfo
- Publication number
- CN106377307A CN106377307A CN201610838292.5A CN201610838292A CN106377307A CN 106377307 A CN106377307 A CN 106377307A CN 201610838292 A CN201610838292 A CN 201610838292A CN 106377307 A CN106377307 A CN 106377307A
- Authority
- CN
- China
- Prior art keywords
- skidding
- buckle
- claw
- bending claws
- limited contact
- 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.)
- Pending
Links
- 210000000078 claw Anatomy 0.000 title claims abstract description 112
- 210000004417 patella Anatomy 0.000 title claims abstract description 45
- 238000005452 bending Methods 0.000 claims description 58
- 210000002435 tendon Anatomy 0.000 claims description 8
- 108010048734 sclerotin Proteins 0.000 abstract description 3
- 230000017531 blood circulation Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 208000006670 Multiple fractures Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect 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
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003205 muscle Anatomy 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/568—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor produced with shape and dimensions specific for an individual patient
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a limited contact type skid-proof patella claw. The limited contact type skid-proof patella claw comprises a first buckle plate and a second buckle plate, wherein the first buckle plate is located above the second buckle plate, a first arc-shaped bent claw assembly is arranged at one end of the first buckle plate, and a second arc-shaped bent claw assembly is arranged at the other end, opposite to the first arc-shaped bent claw assembly, of the second buckle plate; the first arc-shaped bent claw assembly comprises a first skid-proof bent claw and second skid-proof bent claws located on two sides of the first skid-proof bent claw, each second skid-proof bent claw comprises a plurality of third skid-proof bent claws, the first skid-proof bent claw, the second skid-proof bent claws and the third skid-proof bent claws are respectively of a triangular prism structure, and skid-proof sawteeth are respectively arranged on sharp concave sides. Through the mode, according to the limited contact type skid-proof patella claw, the skid-proof bent claws are in limited contact with patella sclerotin, so that the interference caused to the blood circulation of the patella is reduced; and the second skid-proof bent claws and the third skid-proof bent claws can swing and can be regulated by virtue of external splines.
Description
Technical field
The present invention relates to internal fixing device for patellar fracture field, more particularly to a kind of Limited contact anti-skidding kneecap
Pawl.
Background technology
Patella claw is fixing apparatus in a kind of row patellar fracture be applied to bone surgery.Common patella claw structure is
It is made up of nut, overcoat and single hook, adopts titanium alloy more, operation is simple.
Because the size of kneecap, profile have individual difference, the patella claw of same profile is difficult to good coupling,
And the radian of hook and kneecap outer surface radian not exclusively identical, and patella surface have the soft tissue such as synovial bursa and manadesma, all permissible
Cause single hook and kneecap sclerotin loose contact, so that frictional force between implant and kneecap is weakened, be easily shifted over, greatly reduce
Stability during use, thus cause solid failure.In addition, single hook is contacted with patella surface contacting for smooth face, remove
Outside the frictional force deficiency providing, it is also easy to repairing of press against soft tissue, the blood circulation of interference kneecap and impact patellar fracture
Multiple.
Content of the invention
The invention mainly solves the technical problem of providing a kind of Limited contact anti-skidding patella claw, changing face and contacting as point
Contact, matching between fixing device-kneecap for the lifting and fixing stability, reduce fixing failure problem.
For solving above-mentioned technical problem, one aspect of the present invention is：A kind of Limited contact anti-skidding is provided
Patella claw, including：First buckle and the second buckle, described first buckle is located at the top of the second buckle, described first buckle
One end be provided with the first curved bend claw assembly, other end setting contrary with the first curved bend claw assembly on described second buckle
There is the second curved bend claw assembly, described first curved bend claw assembly includes the first anti-skidding bending claws and is located at the first anti-skidding bending claws two
Second anti-skidding bending claws of side, described second curved bend claw assembly includes several 3rd anti-skidding bending claws, described first anti-skidding bending claws,
Two anti-skidding bending claws and the 3rd anti-skidding bending claws are respectively adopted prismatic structure, and concave side is sharp keen and is respectively arranged with anti-skidding sawtooth.
In a preferred embodiment of the present invention, it is anti-skidding convex that the bottom of described first buckle is disposed with several first
Muscle, the top of described second buckle is provided with and intersects the corresponding second anti-skidding convex tendon with the first anti-skidding convex tendon.
In a preferred embodiment of the present invention, described first anti-skidding bending claws, the second anti-skidding bending claws and the 3rd anti-skidding bending claws
Section be respectively triangle.
In a preferred embodiment of the present invention, the front end of described second anti-skidding bending claws and the 3rd anti-skidding bending claws is respectively provided with
There is external splines, described first buckle and the second buckle end are respectively arranged with internal spline corresponding with external splines.
In a preferred embodiment of the present invention, described external splines extends to inside from corresponding internal spline bottom.
In a preferred embodiment of the present invention, described first buckle is provided with a regulation waist hole along its length.
In a preferred embodiment of the present invention, described second buckle is provided with screwed hole corresponding with adjusting waist hole,
The bolt adjusting waist hole and being connected with screwed hole is provided through on described first buckle.
In a preferred embodiment of the present invention, described bolt is dormant bolt, and described first buckle is provided with a circle
It is located at the deep gouge adjusting waist hole edge, the head of described bolt embeds deep gouge.
In a preferred embodiment of the present invention, the bottom of described bolt is provided with downwardly directed centrum.
In a preferred embodiment of the present invention, the quantity of described 3rd anti-skidding bending claws is 1 ~ 5.
The invention has the beneficial effects as follows：A kind of Limited contact that the present invention points out anti-skidding patella claw, distinctive triangle
First anti-skidding bending claws of tee section, the second anti-skidding bending claws and the 3rd anti-skidding bending claws can be gone directly kneecap basic unit, it is to avoid patella surface
The impact of attachment, and increase adhesive force using anti-skidding sawtooth, while reducing contact area, it is to avoid loosening problem, 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 carry out waving tune using external splines
Section, to adapt to the kneecap of different profiles, length adjustment is convenient, increased matching between fixing device-kneecap.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained other according to these accompanying drawings
Accompanying drawing, wherein：
Fig. 1 is a kind of Limited contact of the present invention the structural representation of anti-skidding patella claw one preferred embodiment；
Fig. 2 is the A-A of Fig. 1 to sectional view;
Fig. 3 is the B-B direction sectional view of Fig. 2.
Specific embodiment
The enforcement it is clear that described will be clearly and completely described to the technical scheme in the embodiment of the present invention below
Example is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
All other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
Refer to Fig. 1 to Fig. 3, the embodiment of the present invention includes：
A kind of Limited contact anti-skidding patella claw, including：First buckle 1 and the second buckle 2, described first buckle 1 is located at the
The top of two buckles 2, the bottom of described first buckle 1 is disposed with the several first anti-skidding convex tendons 15, described second buckle 2
Top is provided with and intersects the corresponding second anti-skidding convex tendon 22 with the first anti-skidding convex tendon 15, strengthens the first buckle 1 and the second buckle 2
Spacing, conveniently carry out the regulation of length.
One end of described first buckle 1 is provided with the first curved bend claw assembly, with the first curved bend on described second buckle 2
The contrary other end of claw assembly is provided with the second curved bend claw assembly, and described first curved bend claw assembly includes the first anti-skidding bending claws
11 and the second anti-skidding bending claws 12 of being located at the first anti-skidding bending claws 11 both sides, described second curved bend claw assembly includes 2 the 3rd
Anti-skidding bending claws 21, the section of described first anti-skidding bending claws 11, the second anti-skidding bending claws 12 and the 3rd anti-skidding bending claws 21 is respectively triangle
Shape, as shown in figure 3, certain radian can be arranged at top, bottom tip be aligned kneecap is so that the first anti-skidding bending claws 11, second for triangle
The interior corners of anti-skidding bending claws 12 and the 3rd anti-skidding bending claws 21 can go directly kneecap basic unit, it is to avoid the shadow of patella surface attachment
Ring.
Described first anti-skidding bending claws 11, the second anti-skidding bending claws 12 and the 3rd anti-skidding bending claws 21 are respectively adopted prismatic structure,
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 the interior lateral edges of bending claws 11, the second anti-skidding bending claws 12 and the 3rd anti-skidding bending claws 21, strengthen the combination with kneecap, it is to avoid first prevents
Slip between sliding bending claws 11, the second anti-skidding bending claws 12 and the 3rd anti-skidding bending claws 21 and kneecap.
The front end of described second anti-skidding bending claws 12 and the 3rd anti-skidding bending claws 21 is respectively arranged with external splines 4, corresponding external splines 4
With the second anti-skidding bending claws 12 integral structure, the 3rd anti-skidding bending claws 21 adopt integral structure with corresponding external splines 4, and described
One buckle 1 and the second buckle 2 end are respectively arranged with internal spline 3 corresponding with external splines 4, are respectively adopted integral structure, surely
Qualitative good, produce facility, the cooperation of external splines 4 and internal spline 3, facilitate the angle of the second anti-skidding bending claws 12 and the 3rd anti-skidding bending claws 21
Degree is adjusted, and using kneecap of different shapes, using titanium alloy, tissue compatibility is good.
Described external splines 4 extends to inside from corresponding internal spline 3 bottom, and after installation, internal spline 3 is to external splines 4 bottom
The second anti-skidding bending claws 12 and the 3rd anti-skidding bending claws 21 end carry out compressing fix, lifting adjust install convenience, it is to avoid loosen
Problem.
Be provided with along its length on described first buckle 1 one regulation waist hole 13, described second buckle 2 is provided with
Adjust the corresponding screwed hole 23 of waist hole 13, described first buckle 1 is provided through regulation waist hole 13 and is connected with screwed hole 23
Bolt 5, described bolt 5 be dormant bolt, described first buckle 1 is provided with a circle be located at adjust waist hole 13 edge deep gouge
14, the head of described bolt 5 embeds deep gouge, it is to avoid project up.
The bottom of described bolt 5 is provided with downwardly directed centrum 51, and centrum 51 can extend in kneecap sclerotin, enters one
Step avoids loosening and sliding problem of bolt 5, lifts the stability of postoperative use.
In sum, a kind of present invention points out Limited contact anti-skidding patella claw, sound construction, length and angle are adjusted
The convenient problem being difficult to shift it is adaptable to the fixation of various patellar fractures, stability height, decreasing postoperative fixation failure of section.
The foregoing is only embodiments of the invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in the technology neck of other correlations
Domain, is included within the scope of the present invention.
Claims (10)
1. a kind of Limited contact anti-skidding patella claw, for the fixation of patellar fracture, including：First buckle and the second buckle,
Described first buckle is located at the top of the second buckle it is characterised in that one end of described first buckle is provided with the first curved bend
Claw assembly, on described second buckle, the other end contrary with the first curved bend claw assembly is provided with the second curved bend claw assembly, institute
State the second anti-skidding bending claws that the first curved bend claw assembly includes the first anti-skidding bending claws and is located at the first anti-skidding bending claws both sides, described
Second curved bend claw assembly includes several 3rd anti-skidding bending claws, and described first anti-skidding bending claws, the second anti-skidding bending claws and the 3rd are anti-skidding
Bending claws are respectively adopted prismatic structure, and concave side is sharp keen and is respectively arranged with anti-skidding sawtooth.
2. Limited contact according to claim 1 anti-skidding patella claw are it is characterised in that the bottom of described first buckle
It is disposed with the several first anti-skidding convex tendons, the top of described second buckle is provided with and intersects corresponding with the first anti-skidding convex tendon
Two anti-skidding convex tendons.
3. Limited contact according to claim 1 anti-skidding patella claw it is characterised in that described first anti-skidding bending claws,
The section of the second anti-skidding bending claws and the 3rd anti-skidding bending claws is respectively triangle.
4. Limited contact according to claim 1 anti-skidding patella claw it is characterised in that described second anti-skidding bending claws and
The front end of the 3rd anti-skidding bending claws is respectively arranged with external splines, and described 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 anti-skidding patella claw is it is characterised in that described external splines is from corresponding
Internal spline bottom extends to inside.
6. Limited contact according to claim 1 anti-skidding patella claw are it is characterised in that along long on described first buckle
Degree direction is provided with a regulation waist hole.
7. Limited contact according to claim 6 anti-skidding patella claw are it is characterised in that arrange on described second buckle
Have and adjust the corresponding screwed hole of waist hole, described first buckle is provided through the spiral shell adjusting waist hole and being connected with screwed hole
Bolt.
8. Limited contact according to claim 7 anti-skidding patella claw are it is characterised in that described bolt is countersunk head spiral shell
Bolt, described first buckle is provided with a circle and is located at the deep gouge adjusting waist hole edge, the head of described bolt embeds deep gouge.
9. Limited contact according to claim 1 anti-skidding patella claw are it is characterised in that the bottom setting of described bolt
There is downwardly directed centrum.
10. Limited contact according to claim 1 anti-skidding patella claw are it is characterised in that described 3rd anti-skidding bending claws
Quantity be 1 ~ 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838292.5A CN106377307A (en) | 2016-09-22 | 2016-09-22 | Limited contact type skid-proof patella claw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838292.5A CN106377307A (en) | 2016-09-22 | 2016-09-22 | Limited contact type skid-proof patella claw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106377307A true CN106377307A (en) | 2017-02-08 |
Family
ID=57936783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610838292.5A Pending CN106377307A (en) | 2016-09-22 | 2016-09-22 | Limited contact type skid-proof patella claw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106377307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309419A (en) * | 2018-02-05 | 2018-07-24 | 沈影超 | A kind of patella claw that bundling type is anti-skidding |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085656U (en) * | 1991-04-08 | 1991-10-02 | 杨安礼 | Adjustable restitution device for fracture of patella |
| CN2234253Y (en) * | 1995-10-06 | 1996-09-04 | 温巨平 | Universal adjustable grasper for patella fracture |
| US6471703B1 (en) * | 1999-04-21 | 2002-10-29 | Sdgi Holdings, Inc. | Variable angle connection assembly for a spinal implant system |
| CN202604981U (en) * | 2012-05-30 | 2012-12-19 | 上海市奉贤区中心医院 | Frame type external fixation device |
| CN202723961U (en) * | 2012-08-17 | 2013-02-13 | 李冀 | Lower patella polar aggregator |
| CN105188581A (en) * | 2013-03-08 | 2015-12-23 | 华沙整形外科股份有限公司 | Iliac connectors |
| CN206424135U (en) * | 2016-09-22 | 2017-08-22 | 沈影超 | A kind of Limited contact and anti-skidding patella claw |
-
2016
- 2016-09-22 CN CN201610838292.5A patent/CN106377307A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085656U (en) * | 1991-04-08 | 1991-10-02 | 杨安礼 | Adjustable restitution device for fracture of patella |
| CN2234253Y (en) * | 1995-10-06 | 1996-09-04 | 温巨平 | Universal adjustable grasper for patella fracture |
| US6471703B1 (en) * | 1999-04-21 | 2002-10-29 | Sdgi Holdings, Inc. | Variable angle connection assembly for a spinal implant system |
| CN202604981U (en) * | 2012-05-30 | 2012-12-19 | 上海市奉贤区中心医院 | Frame type external fixation device |
| CN202723961U (en) * | 2012-08-17 | 2013-02-13 | 李冀 | Lower patella polar aggregator |
| CN105188581A (en) * | 2013-03-08 | 2015-12-23 | 华沙整形外科股份有限公司 | Iliac connectors |
| CN206424135U (en) * | 2016-09-22 | 2017-08-22 | 沈影超 | A kind of Limited contact and anti-skidding patella claw |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309419A (en) * | 2018-02-05 | 2018-07-24 | 沈影超 | A kind of patella claw that bundling type is anti-skidding |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170208 |
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| RJ01 | Rejection of invention patent application after publication |