CN105213013B - Multi-shaft locking bone plate - Google Patents
Multi-shaft locking bone plate Download PDFInfo
- Publication number
- CN105213013B CN105213013B CN201510644424.6A CN201510644424A CN105213013B CN 105213013 B CN105213013 B CN 105213013B CN 201510644424 A CN201510644424 A CN 201510644424A CN 105213013 B CN105213013 B CN 105213013B
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- CN
- China
- Prior art keywords
- bone plate
- tooth
- shape
- lock hole
- shaft locking
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
Abstract
The present invention relates to medical instruments fields, and in particular to a kind of multi-shaft locking bone plate, including plate body, plate body are equipped with lock hole, and the inner wall of lock hole is equipped at least two column teeth.Multi-shaft locking bone plate of the invention, in the case where guaranteeing bonding strength, doctor can select proper angle to lock fracture portions according to patients with fractures's situation, greatly improve the working efficiency of doctor.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of multi-shaft locking bone plate.
Background technique
Micro wound coaptation plate osteopathy is a kind of modern Fracture internal fixaiion technology, it uses closed fracture resetting technique, is used in combination
Plate fixation without pressurization maintains fracture reduction, so that surgical exposure and soft tissue extent of exfoliation have reached minimum, subtracts
Lack the blood supply destruction to tissues such as skin, periosteum, sclerites, can be improved union rate, and reduces such as infection or bone
Roll over the incidence of the complication such as disunion.Lock hole and screw on existing bone plate are cooperated by way of screw thread, are made
Used time screw slightly skew is not just able to cooperate with lock hole, and degree easy to use is poor.
Summary of the invention
The object of the present invention is to provide a kind of multi-shaft locking bones plate, and in the case where guaranteeing bonding strength, doctor can be with
Proper angle is selected to lock fracture portions according to patients with fractures's situation.
To achieve the above object, the technical scheme adopted by the invention is that：Including plate body, plate body is equipped with lock hole, lock
The inner wall for determining hole is equipped at least two column teeth.
Preferably, the lock hole is in a circular table shape.
Preferably, each column tooth is arranged along the extending direction sequence of the center line of lock hole.
Preferably, be staggered non-cross overlapping between every two column tooth.
Preferably, the shape of the tooth is the rectangular pyramid or truncated rectangular pyramids that bottom surface is curved surface diamond shape, and the rectangular pyramid or four
Four sides of terrace with edge are identical.
Preferably, the shape of the tooth is the triangular pyramid or triangular platform that bottom surface is curved surface triangle, and the triangular pyramid or
Triangular platform is split to form for curved surface diamond shape, the identical rectangular pyramid in four sides or truncated rectangular pyramids along its plane of symmetry by bottom surface.
Preferably, the angle that the angle a that the cross section in hole is divided equally can be locked on the bottom surface of the tooth is 6-18 °.
Preferably, the angle that the angle a that the cross section in hole is divided equally can be locked on the bottom surface of the tooth is 10-14 °.
Preferably, it is in symmetrical structure that the inner wall of the lock hole, which is equipped with four column, six column or the six above even column teeth of column, tooth,
Structure is identical between two often opposite column teeth.
Preferably, plate body includes integrally formed bone plate one and bone plate two, the bone plate one and synthetism
The shape that plate is two is adapted with skeleton shape.
After adopting the above technical scheme, the present invention has the positive effect that：
(1) lock hole on multi-shaft locking bone plate of the invention is not spirally connected by screw thread instead of with screw, is being locked
The inner wall in hole is equipped with even column tooth, and the shape of tooth is in rectangular pyramid or truncated rectangular pyramids or triangular pyramid or triangular platform, the screw thread on screw
It is staggeredly locked with tooth, even if can also be assembled well with lock hole in the case where screw skew, in actual use,
Doctor can select proper angle to lock fracture portions according to patients with fractures's situation, greatly improve the working efficiency of doctor；
(2) angle that the angle a that the cross section in hole is divided equally can be locked on the bottom surface of tooth is 6-18 °, this angle design is being protected
In the case where demonstrate,proving screw and lock hole cooperation, reduces the resistance of screw receiving, reached in use using the smallest power
Lock-screw purpose；
(3) lock hole in the present invention is in a circular table shape, and with gradually screwing for screw, the diameter of lock hole is gradually reduced,
It is more convenient for the cooperation of screw and lock hole, further help has been screwed to inclined screw.
Detailed description of the invention
Fig. 1 is the perspective view of multi-shaft locking bone plate of the invention；
Fig. 2 be in embodiment 1 one in multi-shaft locking bone plate at lock hole perspective view；
Fig. 3 is the cross-sectional view of the lock hole of Fig. 2；
Fig. 4 be in embodiment 2 one in multi-shaft locking bone plate at lock hole perspective view；
Fig. 5 is the top view of the lock hole of Fig. 4.
Wherein：1, plate body, 11, bone plate one, 12, bone plate two, 2, lock hole, 3, tooth.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in Figure 1-3, being multi-shaft locking bone plate of the invention, including plate body 1, this plate body 1 includes integrally formed
Bone plate one 11 and bone plate two 12, bone plate one 11 and bone plate two 12 shapes with skeleton shape phase
It adapts to.
It is equipped at least one lock hole 2 on bone plate one 11 and bone plate two 12, lock hole 2 is in a circular table shape.It is more
In use, the big one side in the cross section of screw from lock hole 2 screws in axis locking bone fracture plate, and the cross section of lock hole 2 is small
Compared to cross section it is big while closer to human body.The inner wall of lock hole 2 is equipped at least two column teeth 3, and each column tooth 3 is along lock
The extending direction sequence for determining the center line in hole 2 arranges, and be staggered non-cross overlapping between adjacent two column tooth 3, is convenient for screw
On screw thread and tooth 3 staggeredly lock.Tooth 3 is in symmetrical structure, and structure is identical between two often opposite column teeth 3.
The shape of tooth 3 is tetrapyamid shape, is also possible to quadrangular frustum pyramid shaped, and the bottom surface of the rectangular pyramid or truncated rectangular pyramids is curved surface water chestnut
Shape, four sides are identical, and the inner wall of bottom surface fitting lock hole 2, can be locked what the cross section in hole 2 was divided equally on the bottom surface of tooth 3
The degree of angle a is 6-18 °, it is preferred that the angle of a is 10-14 °.Such shape of tooth 3 designs, and is guaranteeing screw and lock hole 2
In the case where cooperation, reduces the resistance of screw receiving, achieve the purpose that lock-screw using the smallest power in use.
The one side of plate body 1 being bonded with human body is equipped with arc groove, makes between multi-shaft locking bone plate and skeleton not
The complete note of meeting is attached, promotes blood circulation, and restores fracture site faster.
In the present embodiment, the inner wall of lock hole 2 is equipped with four column teeth 3, and tooth 3 is in symmetrical structure, the knot of two opposite column teeth 3
Structure is identical.It is appreciated that the columns of tooth 3 can also be two column, six column or the six above even columns of column, it can reach identical with four column
Use purpose.
Embodiment 2
As illustrated in figures 4-5, in the present embodiment, the difference from embodiment 1 is that, the shape of tooth 3 is different.The shape of tooth 3
It is the triangular pyramid or triangular platform of curved surface triangle for bottom surface, and the bottom surface is bonded the inner wall of lock hole 2, the triangular pyramid or three
Terrace with edge is split to form for curved surface diamond shape, the identical rectangular pyramid in four sides or truncated rectangular pyramids along its plane of symmetry by bottom surface, two trigones
Cone or triangular platform can be spliced into rectangular pyramid or truncated rectangular pyramids in embodiment 1.
Multi-shaft locking bone plate of the invention when in use, plate body 1 is bonded at human fracture, screw is respectively from different positions
The lock hole 2 for setting place screws in, and in screwing operations, is not required to the angle of adjusting screw, also can guarantee the perfection of screw Yu lock hole 2
Cooperation alleviates the use burden of doctor.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
It is corresponding to change and deformation, and all these change and deformation all should belong to the present invention claims protection scope it
It is interior.
Claims (5)
1. a kind of multi-shaft locking bone plate, it is characterised in that：Including plate body（1）, plate body（1）It is equipped with lock hole（2）, lock hole
（2）Inner wall be equipped with the four above even column teeth of column（3）, each column tooth（3）Along lock hole（2）Center line extending direction sequence arrange
Column, multiple row tooth（3）In symmetrical structure, two often opposite column teeth（3）Between structure it is identical, adjacent two column tooth（3）Between staggered row
Arrange non-cross overlapping, tooth（3）Shape be rectangular pyramid or truncated rectangular pyramids that bottom surface is curved surface diamond shape, and the rectangular pyramid or tetragonous
Four sides of platform are identical or tooth（3）Shape be triangular pyramid or triangular platform that bottom surface is curved surface triangle, and the triangular pyramid
Or it is that curved surface diamond shape, the identical rectangular pyramid in four sides or truncated rectangular pyramids are split to form along its plane of symmetry that triangular platform, which is bottom surface,.
2. multi-shaft locking bone plate according to claim 1, it is characterised in that：Lock hole（2）It is in a circular table shape.
3. multi-shaft locking bone plate according to claim 1, it is characterised in that：Tooth（3）Bottom surface on can be locked hole（2）
The angle of angle a divided equally of cross section be 6-18 °.
4. multi-shaft locking bone plate according to claim 3, it is characterised in that：Tooth（3）Bottom surface on can be locked hole（2）
The angle of angle a divided equally of cross section be 10-14 °.
5. multi-shaft locking bone plate according to claim 1, it is characterised in that：Plate body（1）Including integrally formed synthetism
Plate one（11）With bone plate two（12）, bone plate one（11）With bone plate two（12）Shape with skeleton shape
Shape is adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510644424.6A CN105213013B (en) | 2015-09-08 | 2015-10-08 | Multi-shaft locking bone plate |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510566393 | 2015-09-08 | ||
| CN2015105663937 | 2015-09-08 | ||
| CN201510644424.6A CN105213013B (en) | 2015-09-08 | 2015-10-08 | Multi-shaft locking bone plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105213013A CN105213013A (en) | 2016-01-06 |
| CN105213013B true CN105213013B (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510644424.6A Active CN105213013B (en) | 2015-09-08 | 2015-10-08 | Multi-shaft locking bone plate |
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| Country | Link |
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| CN (1) | CN105213013B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997222A (en) * | 2016-06-29 | 2016-10-12 | 江苏艾迪尔医疗科技股份有限公司 | Femoral proximal joint external universal locking plate |
| CN105963008A (en) * | 2016-06-29 | 2016-09-28 | 江苏艾迪尔医疗科技股份有限公司 | Universal locking plate for proximal femur front side |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8870931B2 (en) * | 2007-03-21 | 2014-10-28 | The University Of North Carolina At Chapel Hill | Anti-unscrewing and multi-angular fastening apparatuses and methods for surgical bone screw/plate systems |
| EP2248479B1 (en) * | 2009-05-06 | 2012-09-19 | Greatbatch Ltd. | Bone plate assembly |
| US9265542B2 (en) * | 2012-06-27 | 2016-02-23 | DePuy Synthes Products, Inc. | Variable angle bone fixation device |
| US9433454B2 (en) * | 2013-03-14 | 2016-09-06 | Amei Technologies, Inc. | Variable angle screws, plates and systems |
| CN204092147U (en) * | 2014-09-10 | 2015-01-14 | 中国人民解放军第二军医大学 | A kind of patella fixture |
| CN205126389U (en) * | 2015-09-08 | 2016-04-06 | 创生医疗器械（中国）有限公司 | Multiaxis locking bone plate |
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2015
- 2015-10-08 CN CN201510644424.6A patent/CN105213013B/en active Active
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| Publication number | Publication date |
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| CN105213013A (en) | 2016-01-06 |
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