CN203609547U - Anti-dislocation rotary type knee joint prosthesis - Google Patents
Anti-dislocation rotary type knee joint prosthesis Download PDFInfo
- Publication number
- CN203609547U CN203609547U CN201320853702.5U CN201320853702U CN203609547U CN 203609547 U CN203609547 U CN 203609547U CN 201320853702 U CN201320853702 U CN 201320853702U CN 203609547 U CN203609547 U CN 203609547U
- Authority
- CN
- China
- Prior art keywords
- tibia
- condyle
- femur
- prosthesis
- axis hole
- 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.)
- Expired - Lifetime
Links
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 12
- 210000002303 tibia Anatomy 0.000 claims abstract description 35
- 210000000689 upper leg Anatomy 0.000 claims abstract description 35
- 230000003139 buffering effect Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The utility model provides an anti-dislocation rotary type knee joint prosthesis. The prosthesis comprises a femoral prosthesis, a femoral tibia connecting shaft and a tibia prosthesis; the femur prosthesis comprises a marrow needle on the top and a femoral condyle at the bottom; a shaft hole transversely extending is arranged in the bottom of the femoral condyle; a shaft sleeve is arranged in the shaft hole; a transverse shaft hole matching the shaft hole of the femoral condyle is arranged in the upper end of the femoral tibia connecting shaft, and is in rotary connection with the shaft hole of the femoral condyle via a transverse connecting shaft; the tibia prosthesis comprises a tibia platform on the top and a tibia marrow needle at the bottom; an arc-shaped recess is arranged on the top of the tibia platform; a bottom arc-shaped projection matching the arc-shaped recess is arranged at the bottom of the femoral condyle; a buffering pad layer is arranged between the tibia platform and the femoral condyle; a longitudinal shaft hole is arranged in the upper face of the tibia platform; a lining is arranged in the longitudinal shaft hole; and the femoral tibia connecting shaft passes through, is integrated into the lining, is inserted in the longitudinal shaft hole in the upper face of the tibia platform and then is pressed on a flange skirt edge of the lining via the pad layer between the tibia platform and the femoral condyle.
Description
Technical field
This utility model relates to the permanent surgical implant in medical instruments field, refers to that especially one has anticreep position rotary knee-joint prosthesis.
Background technology
In the time that treatment knee tumor or other pathological changes need to be by excision lesions positions, adopt the alternative guarantor's limb Therapeutic Method of articular prosthesis more, and be widely used clinically the knee-joint prosthesis with spinfunction.This class prosthese of at present domestic production is because of without anticreep bit architecture, once occurs prothesis dislocation in clinical, and some external imported product, although there is anticreep bit function, complicated structure, effect is not very good yet.For this reason, this patent adopts the design of disconnecting preventing bit architecture, and clinical manipulation is simple and convenient, and anti-dislocation effect is safe and reliable.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of anticreep position rotary knee-joint prosthesis that can prevent dislocation and can improve fixed effect, for the reconstruction after knee tumor or the excision of other pathological changes.
For solving the problems of the technologies described above, embodiment of the present utility model provides one to have anticreep position rotary knee-joint prosthesis, comprises femoral prosthesis, strand tibia connecting axle and tibial prosthesis; Wherein said femoral prosthesis comprises the broach at top and the condyle of femur of bottom, and the bottom of described condyle of femur is provided with the axis hole of horizontal expansion, is provided with axle sleeve in axis hole; Described strand of tibia connecting axle is provided with the horizontal axis hole suitable with the axis hole of described condyle of femur, between the axis hole of described condyle of femur and the horizontal axis hole of strand tibia connecting axle, is rotationally connected by lateral shaft; Described tibial prosthesis comprises the tibial plateau at top and the tibia broach of bottom; Described tibial plateau top is provided with arc-shaped recess, and described condyle of femur bottom is provided with the bottom arc-shaped protrusions suitable with described arc-shaped recess, is provided with the bed course of buffering between described tibial plateau and condyle of femur; On the upper surface of described tibial plateau, have longitudinal axis hole, in described longitudinal axis hole, be provided with the lining of longitudinal in-line opening, described thigh tibia connecting axle bottom forms after an entirety through described lining and with lining, insert in the axis hole of tibial plateau upper surface, and be pressed in by the bed course between described tibial plateau and condyle of femur on the flange shirt rim of lining.
Wherein, broach one end of described femoral prosthesis is provided with tapered flange, and the top of described condyle of femur is provided with the taper recessed edge suitable with described tapered flange so that described femoral prosthesis is connected by tapering with described condyle of femur.
Wherein, described bed course and tibial plateau have formed an entirety by screw lock after interfixing by T-shaped slot and T-shaped projection.
The beneficial effect of technique scheme of the present utility model is as follows:
Of the present utility model strand of tibia connecting axle inserts in tibial plateau axis hole through the lining on tibial plateau, load onto plastic layer and adopt screw lock, thereby make to form between strand tibia connecting axle and tibial prosthesis one can anti-dislocation entirety, then adopt lateral shaft to connect femoral prosthesis, make to form between femoral prosthesis and tibial prosthesis rotating connection, can guarantee like this reliability connecting, also can avoid the dislocation in motor process.The assembly type that simultaneously interfixes to reach safe, stable by tapered flange and the suitable recessed edge of taper between the broach of femoral prosthesis and the broach of condyle of femur and tibial prosthesis and tibial plateau is connected.
Accompanying drawing explanation
Fig. 1 is that the master with anticreep position rotary knee-joint prosthesis of this utility model embodiment looks sectional structure schematic diagram;
Fig. 2 is the side-looking sectional structure schematic diagram of Fig. 1.
Drawing reference numeral is described as follows:
1, broach;
2, tapered flange;
3, condyle of femur;
4, bed course;
5, tibial plateau;
7, tibia broach;
8, lateral shaft;
9, pinning;
10, strand tibia connecting axle;
11, screw;
12, lining.
The specific embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiment of the present utility model provides one to have anticreep position rotary knee-joint prosthesis, and its structure as shown in Figure 1 and Figure 2, comprises femoral prosthesis, strand tibia connecting axle and tibial prosthesis; Wherein said femoral prosthesis comprises the broach 1 at top and the condyle of femur 3 of bottom, the bottom of described condyle of femur 3 is provided with the axis hole of horizontal expansion, in axis hole, be provided with axle sleeve, described strand of tibia connecting axle 10 is provided with the horizontal axis hole suitable with described condyle of femur 3 lining endoporus, and realized and being rotationally connected by lateral shaft 8; Described tibial prosthesis comprises the tibial plateau 5 at top and the tibia broach 7 of bottom; Described tibial plateau 5 tops are provided with arc-shaped recess, and the bottom of described condyle of femur 3 is provided with the bottom arc-shaped protrusions suitable with described arc-shaped recess, are provided with the bed course 4 of buffering between described tibial plateau 5 and condyle of femur 3; On the upper surface of described tibial plateau 5, have longitudinal axis hole, longitudinally in axis hole, be provided with the lining 12 of longitudinal yi word pattern opening, described thigh tibia connecting axle 10 bottoms form an entirety through the Kong Bingyu lining 12 of lining 12, then insert in the lump in longitudinal axis hole of tibial plateau 5 upper surfaces, finally be pressed on the flange shirt rim of lining 12 by the bed course 4 between described tibial plateau 5 and condyle of femur 3, thereby make femoral prosthesis and tibial prosthesis reach the firm connection of anti-dislocation; The broach surface of described femoral prosthesis parts, the tibial plateau of tibial prosthesis parts bottom and tibia broach surface are provided with micropore tantalum coating.
As shown in Figure 1 and Figure 2, broach 1 one end of described femoral prosthesis parts is provided with tapered flange 2, is fixed on the top of described condyle of femur 3 by taper fit; The top of described condyle of femur 3 be provided with the taper recessed edge suitable with described tapered flange 2 reaching safety, stable assembly type is connected.As shown in Figure 2, described lateral shaft 8 is fixed on described strand of tibia connecting axle 10 by pinning 9.
As shown in Figure 2, on the upper surface of described tibial plateau 5, have axis hole, in axis hole, be provided with lining 12, and described lining 12 is provided with flange shirt rim, and with longitudinal axis hole of yi word pattern opening; Described thigh tibia connecting axle 10 bottoms are passed in the hole of lining 12 and form an entirety with lining 12, then insert in the lump in the axis hole of tibial plateau 5 upper surfaces, be finally pressed on the flange shirt rim of lining 12 by the bed course 4 between described tibial plateau 5 and condyle of femur 3; Described bed course 4 and tibial plateau 5 adopt screw 11 to lock after interfixing by T-shaped slot and T-shaped projection, have formed an entirety in structure, thereby have effectively prevented the dislocation of femoral prosthesis and tibial prosthesis.
Of the present utility model strand of tibia connecting axle inserts in tibial plateau axis hole through the lining on tibial plateau, load onto plastic layer and adopt screw lock, thereby make to form between strand tibia connecting axle and tibial prosthesis one can anti-dislocation entirety, then adopt lateral shaft to connect femoral prosthesis, make to form between femoral prosthesis and tibial prosthesis rotating connection, can guarantee like this reliability connecting, also can avoid the dislocation in motor process.The assembly type that simultaneously interfixes to reach safe, stable by tapered flange and the suitable recessed edge of taper between the broach of femoral prosthesis and the broach of condyle of femur and tibial prosthesis and tibial plateau is connected.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. there is an anticreep position rotary knee-joint prosthesis, it is characterized in that, comprise femoral prosthesis, strand tibia connecting axle and tibial prosthesis; Wherein said femoral prosthesis comprises the broach at top and the condyle of femur of bottom, and the bottom of described condyle of femur is provided with the axis hole of horizontal expansion, is provided with axle sleeve in axis hole; Described strand of tibia connecting axle is provided with the horizontal axis hole suitable with the axis hole of described condyle of femur, between the axis hole of described condyle of femur and the horizontal axis hole of strand tibia connecting axle, is rotationally connected by lateral shaft; Described tibial prosthesis comprises the tibial plateau at top and the tibia broach of bottom; Described tibial plateau top is provided with arc-shaped recess, and described condyle of femur bottom is provided with the bottom arc-shaped protrusions suitable with described arc-shaped recess, is provided with the bed course of buffering between described tibial plateau and condyle of femur; On the upper surface of described tibial plateau, have longitudinal axis hole, in described longitudinal axis hole, be provided with the lining of longitudinal in-line opening, described thigh tibia connecting axle bottom forms after an entirety through described lining and with lining, insert in longitudinal axis hole of tibial plateau upper surface, and be pressed in by the bed course between described tibial plateau and condyle of femur on the flange shirt rim of lining.
2. according to claim 1 have an anticreep position rotary knee-joint prosthesis, it is characterized in that, broach one end of described femoral prosthesis is provided with tapered flange, and the top of described condyle of femur is provided with the taper recessed edge suitable with described tapered flange so that described femoral prosthesis is connected by tapering with described condyle of femur.
3. according to claim 1 have an anticreep position rotary knee-joint prosthesis, it is characterized in that, described bed course and tibial plateau have formed an entirety by screw lock after interfixing by T-shaped slot and T-shaped projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853702.5U CN203609547U (en) | 2013-12-23 | 2013-12-23 | Anti-dislocation rotary type knee joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853702.5U CN203609547U (en) | 2013-12-23 | 2013-12-23 | Anti-dislocation rotary type knee joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203609547U true CN203609547U (en) | 2014-05-28 |
Family
ID=50762235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320853702.5U Expired - Lifetime CN203609547U (en) | 2013-12-23 | 2013-12-23 | Anti-dislocation rotary type knee joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203609547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518965A (en) * | 2016-11-30 | 2017-12-29 | 嘉思特华剑医疗器材(天津)有限公司 | Radially constrain rotatable platform articular surface knee-joint prosthesis |
| CN109276354A (en) * | 2017-07-20 | 2019-01-29 | 嘉思特华剑医疗器材(天津)有限公司 | Rotatable shaft is to restricted type hinge knee components |
-
2013
- 2013-12-23 CN CN201320853702.5U patent/CN203609547U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518965A (en) * | 2016-11-30 | 2017-12-29 | 嘉思特华剑医疗器材(天津)有限公司 | Radially constrain rotatable platform articular surface knee-joint prosthesis |
| CN109276354A (en) * | 2017-07-20 | 2019-01-29 | 嘉思特华剑医疗器材(天津)有限公司 | Rotatable shaft is to restricted type hinge knee components |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204428143U (en) | Hollow shape osteotomy plate | |
| CN104287873B (en) | Knee shim system with adjustable barrier | |
| WO2010138854A3 (en) | Methods and apparatus for performing knee arthroplasty | |
| CN204814288U (en) | Full knee joint replacement false body | |
| CN103598936B (en) | A kind of combination type tumorous type ankle prosthesis | |
| CN203609547U (en) | Anti-dislocation rotary type knee joint prosthesis | |
| CN206167121U (en) | Customization broach with bone trabecula porous structure | |
| CN209751299U (en) | Bionic tumor type knee joint prosthesis | |
| CN103070739B (en) | Artificial knee-joint thighbone | |
| CN204636620U (en) | Tibial plateau assembly | |
| CN204521058U (en) | Type femoral bone end prosthesis | |
| CN203576699U (en) | Patella prosthesis structure | |
| CN203315135U (en) | Adjustable rotation-resistant shoes | |
| CN205849594U (en) | High matching degree bion knee-joint prosthesis | |
| CN207012227U (en) | A kind of near-end to match with marrow cavity of femur form fixes intramedullary nail | |
| CN205988319U (en) | Outside plate after distal tibial | |
| CN105213071A (en) | A kind of bone conservative knee-joint prosthesis | |
| CN202821718U (en) | Group matching femoral stem | |
| CN202942257U (en) | Rotating platform knee-joint prosthesis with reset function | |
| CN208770072U (en) | A kind of artificial prosthesis of the adjustable overlapping connection structure in long bone backbone portion | |
| CN203059979U (en) | Artificial knee joint femur | |
| CN202982313U (en) | Knee-joint prosthesis | |
| CN105943202B (en) | The prosthesis assembly of drug release treatment joint postoperative infection | |
| CN203447389U (en) | Knee joint tibia support of asymmetric structure | |
| CN204766046U (en) | Bone cement mould hip joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
|
| CX01 | Expiry of patent term |