CN106308980A - Locking mechanism for tibial plateau - Google Patents
Locking mechanism for tibial plateau Download PDFInfo
- Publication number
- CN106308980A CN106308980A CN201610678143.7A CN201610678143A CN106308980A CN 106308980 A CN106308980 A CN 106308980A CN 201610678143 A CN201610678143 A CN 201610678143A CN 106308980 A CN106308980 A CN 106308980A
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- China
- Prior art keywords
- buckle
- locking mechanism
- tibia
- bayonet
- convex
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides a locking mechanism for a tibial plateau, and relates to the field of an artificial joint. The locking mechanism comprises a tibia carrier supporting seat and a tibia gasket and further comprises a buckle structure; a positioning bulge is formed on the tibia carrier supporting seat; a positioning groove coincided with the positioning bulge is formed on the tibia gasket; the buckle structure comprises a bayonet arranged on the tibia carrier supporting seat and a buckle arranged on the tibia gasket; when the positioning bulge is matched with the positioning groove, the buckle is matched with the bayonet. Compared with the prior art, according to the locking mechanism for the tibial plateau, the positioning bulge is matched with the positioning groove and meanwhile, the buckle and the bayonet are used for carrying out triple locking, so that the tibia carrier supporting seat and the tibia gasket are enabled to be locked without generating displacement and meanwhile, processing difficulty is reduced and manufacturing cost is reduced.
Description
Technical field
The present invention relates to artificial joint field, a kind of locking mechanism for tibial plateau.
Background technology
TKA is a kind of prosthetic replacement's surgical operation, refers to that excising body cannot repair voluntarily
Multiple articular surface, substitutes the joint damaged, orthotic limbs muscle power line, eliminates the gonalgia, maintain joint with artificial joint component
Stability, recovers a kind of Therapeutic Method of knee joint function.
Fixed platform knee joint is made up of 2 parts in tibial side: one is tibia support, and two is tibial insert, tibia support with
Tibial plateau has a locking mechanism.Current locking mechanism is usually: make a circle in platform week projection, central fluting；At tibia
On pad, a circle projection of correspondence is had to clamp in groove.Mainly having the disadvantage that of this locking mechanism: 1, be squeezing into tibia
The when of pad, relatively difficult；2, tibial insert is relatively big, because surrounding has circle becket and a pad with the contact surface of tibia support
Being contact, after beginning to use after human body is implanted in joint, tibial insert and tibia support can produce fine motion, especially in inside/outside side
This direction, polyethylene pad and metal tibial torr can produce shock, and the biggest contact area can produce abrasive dust (mainly
Polyethylene chip)；3, difficulty of processing strengthens, and owing to the material of tibia support is typically vitallium, in one plane processes
Go out an annular structure and need more process time and the abrasion to cutter, so can increase cost；Meanwhile, tibia support
Surface is typically height polishing, and the structure of this plane and surrounding annular can increase the difficulty of polishing, increases cost.
Summary of the invention
For the problems referred to above, the invention provides a kind of locking mechanism for tibial plateau, it is ensured that tibia support supports seat
Locking with tibial insert, do not produce displacement, difficulty of processing reduces simultaneously, and manufacturing cost reduces.
The technical solution used in the present invention is:
A kind of locking mechanism for tibial plateau, supports seat and tibial insert including tibia support, and it also includes buckle structure, shin
Bone torr supports seat and is provided with positioning convex, and tibial insert is provided with the detent matched with positioning convex, buckle structure bag
Include and be arranged on the buckle that tibia support supports seat upper latch notch and is arranged on tibial insert, coordinate with detent at positioning convex
Time, buckle and bayonet fittings.
Preferably, positioning convex is T-shaped, and positioning convex includes lateral projection and longitudinally convex, and lateral projection is with the most convex
Rising vertical, lateral projection connects as one with longitudinally convex.
Preferably, detent is the T-shaped matched with positioning convex, and detent includes that transverse concave groove is with the most recessed
Groove, transverse concave groove is vertical with longitudinal fluting, and transverse concave groove is connected with longitudinal fluting.
Preferably, bayonet socket includes first bayonet socket and two the second bayonet sockets, and tibia support supports seat and is additionally provided with a location
Stake, guide pile is vertical with longitudinally convex, and the first bayonet socket is arranged on guide pile, and two the second bayonet sockets are separately positioned on and are in longitudinal direction
On the same sidewall of the lateral projection of protruding both sides.
Preferably, buckle includes first buckle and two the second buckles, and tibial insert is additionally provided with one and location
The fixed groove that stake coordinates, the first buckle is arranged in the groove bottom of fixed groove, and two the second buckles are separately positioned on and are in
On the same sidewall of the transverse concave groove of longitudinal fluting both sides, the first buckle and the first bayonet fittings, the second buckle and the second bayonet socket
Coordinate.
Compared with prior art, the beneficial effects of the present invention is: the present invention provides a kind of locking for tibial plateau
Mechanism, uses positioning convex to coordinate with detent, carries out triple locking with buckle and bayonet socket simultaneously, it is ensured that tibia support supports seat
Locking with tibial insert, do not produce displacement, difficulty of processing reduces simultaneously, and manufacturing cost reduces.
Accompanying drawing explanation
The axonometric chart of a kind of locking mechanism for tibial plateau that Fig. 1 provides for the present invention；
A kind of schematic diagram of tibia support support seat in the locking mechanism of tibial plateau that Fig. 2 provides for the present invention；
A kind of another schematic diagram of tibia support support seat in the locking mechanism of tibial plateau that Fig. 3 provides for the present invention；
A kind of schematic diagram of tibial insert in the locking mechanism of tibial plateau that Fig. 4 provides for the present invention；
A kind of another schematic diagram of tibial insert in the locking mechanism of tibial plateau that Fig. 5 provides for the present invention.
Detailed description of the invention
The preferred implementation provided the present invention with reference to the accompanying drawings illustrates.
Fig. 1 to Fig. 5, for the preferred implementation of a kind of locking mechanism for tibial plateau that the present invention provides.This use
Locking mechanism in tibial plateau includes that tibia support supports seat 10, tibial insert 20 and buckle structure 30, and tibia support supports seat 10
Being provided with positioning convex 11, tibial insert 20 is provided with the detent 21 matched with positioning convex 11, and buckle structure 30 wraps
Include and be arranged on the buckle 32 that tibia support supports seat 10 upper latch notch 31 and is arranged on tibial insert 20, in positioning convex 11 and location
When groove 21 coordinates, buckle 32 coordinates with bayonet socket 31, tibia support so supports seat 10 and locks with tibial insert 20, and tibia support props up
Do not produce displacement between support seat 10 and tibial insert 20, thus without producing abrasive dust, human body is produced impact.
As shown in Figures 2 and 3, tibia support supports the one side of seat 10 and arranges positioning convex 11, and another side arranges tibia
Torr.Positioning convex 11 is T-shaped, and positioning convex 11 includes lateral projection 111 and longitudinally convex 112, and lateral projection 111 is with the most convex
Rising 112 vertical, lateral projection 111 connects as one with longitudinally convex 112, and tibia support is supported the one of seat 10 by longitudinally convex 112
Side is divided into two the first symmetrical plane domains, and such difficulty of processing reduces, and tool wear reduces, and reduces manufacturing cost.
Bayonet socket 31 includes first bayonet socket 311 and two the second bayonet sockets 312, and tibia support support seat 10 is additionally provided with one to be determined
Position stake 12, guide pile 12 is 112 vertical with longitudinally convex, and the first bayonet socket 311 is arranged on guide pile 12, two the second bayonet sockets 312
It is separately positioned on the same sidewall of the lateral projection 111 being in longitudinally convex 112 both sides.
As a kind of preferred implementation, lateral projection 111 is arranged along a side of tibia pallet support seat 10, location
Another relative side that stake 12 supports seat 10 along tibia support is arranged, and the area of the first plane domain increases, it is simple to processing.
As shown in Figure 4 and Figure 5, detent 21 is the T-shaped matched with positioning convex 11, and detent 21 includes laterally
Groove 211 and longitudinal fluting 212, transverse concave groove 211 is vertical with longitudinal fluting 212, transverse concave groove 211 and longitudinal fluting 212 phase
Connection, when detent 21 coordinates with positioning convex 11, lateral projection 111 is in transverse concave groove 211, and longitudinally convex 112
Being in longitudinal fluting 212, the side of tibial insert is divided into two the second symmetrical plane domains by longitudinal fluting 212, this
Sample difficulty of processing reduces, and tool wear reduces, and reduces manufacturing cost.
Buckle 32 includes first buckle 321 and two the second buckles 322, tibial insert 20 is additionally provided with one with fixed
The fixed groove 22 that position stake 12 coordinates, the first buckle 321 is arranged in the groove bottom of fixed groove 22, two the second buckles 322
It is separately positioned on the same sidewall of the transverse concave groove 211 being in longitudinal fluting 212 both sides, the first buckle 321 and the first bayonet socket
311 coordinate, and the second buckle 322 coordinates with the second bayonet socket 312, so use the mode of buckle and the triple locking of bayonet fittings, will
Tibia support supports seat 10 and locks with tibial insert 20, prevents tibia support from supporting seat 10 and produces mobile with tibial insert 20.
As a kind of preferred implementation, transverse concave groove 211 is arranged along a side of tibial insert 20, fixed groove 22
Another relative side along tibial insert 20 is arranged, and the area of the second plane domain increases, it is simple to processing.
In sum, technical scheme sufficiently effective can realize foregoing invention purpose, and the knot of the present invention
Structure and principle of work and power are the most sufficiently verified, can reach intended effect and purpose, without departing substantially from this
On the premise of the principle of invention and essence, inventive embodiment can be made various changes or modifications.Therefore, the present invention includes
All be previously mentioned in patent claim in the range of all replacement contents, any made in scope of the present invention patent
Equivalence change, all belong to this case application the scope of the claims within.
Claims (5)
1., for a locking mechanism for tibial plateau, support seat and tibial insert including tibia support, it is characterised in that also include
Buckle structure, tibia support supports seat and is provided with positioning convex, and tibial insert is provided with the detent matched with positioning convex,
Buckle structure includes that being arranged on tibia support supports seat upper latch notch and the buckle being arranged on tibial insert, in positioning convex and location
During groove fit, buckle and bayonet fittings.
Locking mechanism for tibial plateau the most according to claim 1, it is characterised in that: positioning convex is T-shaped, location
Projection includes lateral projection and longitudinally convex, and lateral projection is vertical with longitudinally convex, and lateral projection is connected as one with longitudinally convex
Body.
Locking mechanism for tibial plateau the most according to claim 2, it is characterised in that: detent is and convex
Acting the T-shaped matched, detent includes transverse concave groove and longitudinal fluting, and transverse concave groove is vertical with longitudinal fluting, transverse concave groove
It is connected with longitudinal fluting.
Locking mechanism for tibial plateau the most according to claim 3, it is characterised in that: bayonet socket includes one first card
Mouth and two the second bayonet sockets, tibia support supports seat and is additionally provided with a guide pile, and guide pile is vertical with longitudinally convex, and the first bayonet socket sets
Putting on guide pile, two the second bayonet sockets are separately positioned on the same sidewall of the lateral projection being in longitudinally convex both sides.
Locking mechanism for tibial plateau the most according to claim 4, it is characterised in that: buckle includes one first card
Button and two the second buckles, tibial insert is additionally provided with a fixed groove coordinated with guide pile, and the first buckle is arranged on solid
Determining in the groove bottom of groove, two the second buckles are separately positioned on the same sidewall of the transverse concave groove being in longitudinal fluting both sides
On, the first buckle and the first bayonet fittings, the second buckle and the second bayonet fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678143.7A CN106308980A (en) | 2016-08-17 | 2016-08-17 | Locking mechanism for tibial plateau |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678143.7A CN106308980A (en) | 2016-08-17 | 2016-08-17 | Locking mechanism for tibial plateau |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106308980A true CN106308980A (en) | 2017-01-11 |
Family
ID=57740634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610678143.7A Pending CN106308980A (en) | 2016-08-17 | 2016-08-17 | Locking mechanism for tibial plateau |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106308980A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4950298A (en) * | 1988-04-08 | 1990-08-21 | Gustilo Ramon B | Modular knee joint prosthesis |
| US6126692A (en) * | 1998-06-25 | 2000-10-03 | New York Society For The Relief Of The Ruptured And Crippled Maintaining The Hospital For Special Surgery | Retaining mechanism for a modular tibial component of a knee prosthesis |
| US6379388B1 (en) * | 1999-12-08 | 2002-04-30 | Ortho Development Corporation | Tibial prosthesis locking system and method of repairing knee joint |
| US20020161448A1 (en) * | 2000-07-20 | 2002-10-31 | Hayes, Jr. Daniel E. E. | Bimetal tibial component construct for knee joint prosthesis |
| US20070203582A1 (en) * | 2006-02-28 | 2007-08-30 | Howmedica Osteonics Corp. | Modular tibial implant |
| CN101401750A (en) * | 2007-09-25 | 2009-04-08 | 德普伊产品公司 | Fixed-bearing knee prosthesis |
| CN102058448A (en) * | 2009-11-17 | 2011-05-18 | 德普伊产品公司 | Fixed-bearing knee prosthesis having interchangeable components |
| CN103118634A (en) * | 2010-07-24 | 2013-05-22 | 捷迈有限公司 | Tibial prosthesis |
| CN206183438U (en) * | 2016-08-17 | 2017-05-24 | 优适医疗科技（苏州）有限公司 | A locking mechanical system for tibial plateau |
-
2016
- 2016-08-17 CN CN201610678143.7A patent/CN106308980A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4950298A (en) * | 1988-04-08 | 1990-08-21 | Gustilo Ramon B | Modular knee joint prosthesis |
| US6126692A (en) * | 1998-06-25 | 2000-10-03 | New York Society For The Relief Of The Ruptured And Crippled Maintaining The Hospital For Special Surgery | Retaining mechanism for a modular tibial component of a knee prosthesis |
| US6379388B1 (en) * | 1999-12-08 | 2002-04-30 | Ortho Development Corporation | Tibial prosthesis locking system and method of repairing knee joint |
| US20020161448A1 (en) * | 2000-07-20 | 2002-10-31 | Hayes, Jr. Daniel E. E. | Bimetal tibial component construct for knee joint prosthesis |
| US20070203582A1 (en) * | 2006-02-28 | 2007-08-30 | Howmedica Osteonics Corp. | Modular tibial implant |
| CN101401750A (en) * | 2007-09-25 | 2009-04-08 | 德普伊产品公司 | Fixed-bearing knee prosthesis |
| CN102058448A (en) * | 2009-11-17 | 2011-05-18 | 德普伊产品公司 | Fixed-bearing knee prosthesis having interchangeable components |
| CN103118634A (en) * | 2010-07-24 | 2013-05-22 | 捷迈有限公司 | Tibial prosthesis |
| CN206183438U (en) * | 2016-08-17 | 2017-05-24 | 优适医疗科技（苏州）有限公司 | A locking mechanical system for tibial plateau |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |