CN202801867U - Combined artificial knee joint prosthesis - Google Patents
Combined artificial knee joint prosthesis Download PDFInfo
- Publication number
- CN202801867U CN202801867U CN 201220230317 CN201220230317U CN202801867U CN 202801867 U CN202801867 U CN 202801867U CN 201220230317 CN201220230317 CN 201220230317 CN 201220230317 U CN201220230317 U CN 201220230317U CN 202801867 U CN202801867 U CN 202801867U
- Authority
- CN
- China
- Prior art keywords
- personalized
- joint prosthesis
- artificial knee
- standard
- standard type
- 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 - Fee Related
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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
-
- 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
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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 utility model relates to a combined artificial knee joint prosthesis and belongs to the technical field of medical equipment. The combined artificial knee joint prosthesis comprises a standard shinbone support part, a standard shinbone platform part, a standard femoral condyle part and a personalized femoral stem component, wherein the personalized femoral stem component comprises a standard front end part and a personalized rear end part; and the standard front end part realizes fixed positioning by adopting a saddle-shaped structure and a convex structure arranged in the standard femoral condyle part. The combined artificial knee joint prosthesis simplifies the design process of a personalized artificial knee joint prosthesis so as to improve the manufacturing efficiency and reduce the production cost.
Description
Technical field
The utility model relates to a kind of device of technical field of medical instruments, specifically a kind of combined type artificial knee-joint prosthesis.
Background technology
Knee joint is an easily position of bone tumor, and about 1/3 bone tumor betides the knee joint zone, and is wherein in the majority to occur in distal femur.Knee joint distal femur tumor often adopts tumor to protect the limb operation to treat clinically, thoroughly keeps to greatest extent kneed physiological function in the operation when tumor resection.
Because each patient's skeleton development situation, anatomic form, disease are different with the tumor invading zone, general knee-joint prosthesis can't satisfy clinically patient's individuation demand.Before the operation, the doctor need to determine the excision extension of tissue according to medical image data and experience to participate in a contest, and determines the mounting means of shape, size and the prosthese of required prosthese according to excision extension.Customized artificial knee joint condyle of femur assembly in the market is the global design manufacturing, and comparatively complexity of formula artificial knee joint condyle of femur modular construction is made in this global design, and the Design and Machining cycle is longer, and cost is higher.
The utility model content
This utility model provides a kind of combined type artificial knee-joint prosthesis for the prior art above shortcomings, to simplify customized artificial knee joint prosthetic designs process, improves make efficiency, reduces production costs.
This utility model is achieved through the following technical solutions, and this utility model comprises: the standard type tibia support part, standard type tibial plateau part, standard type condyle of femur part and the personalized femoral stem assembly that connect successively, wherein:
Described standard type tibia support part, standard type tibial plateau part and standard type condyle of femur part are the standard components that has in the market the different size model.
Described personalized femoral stem assembly comprises: standard type fore-end and personalized rear end part, wherein: the end of standard type fore-end is provided with shape of a saddle structure and realizes stationary positioned with the bulge-structure that is arranged at standard type condyle of femur inside parts, and the appearance profile of this shape of a saddle structure and bulge-structure matches each other.
Personalized rear end part is pyramidal structure, and its shape is complementary to satisfy different patient's individual demands from actual osteotomy and femoral cavity structure.
Described stationary positioned refers to: fix with thread connection.
The structure that this utility model employing standard type knee-joint prosthesis and personalized type femoral bone end prosthesis are combined.This Combined type personalized artificial knee joint prosthesis comprises standard type lateral femoral condyle prosthesis, standard type tibia support prosthese, standard type tibia pad prosthese and personalized type femoral bone end prosthesis.
Condyle of femur assembly in the artificial knee joint prosthesis, tibia support assembly and tibial plateau assembly surface shape are comparatively complicated, and the Design and Machining cycle is longer, processing cost is higher, owing to adopt the standard type structure, need not customization processing, can be mass processing, can effectively reduce the prosthetic designs processing cost.And type femoral bone end prosthesis adopts personalized physical dimension, can satisfy different patients' individual demand.
It is convenient that this utility model combines standard type knee-joint prosthesis Design and Machining, lower and the customized artificial knee joint prosthese of cost can satisfy the advantage of patient's personal needs, the Design and Machining cycle is shorter, and the Design and Machining cost is lower, can satisfy again different patient's individual demands simultaneously.
Description of drawings
Fig. 1 is this utility model structural representation;
Wherein: (a) be this utility model front view; (b) be this utility model side view; (c) be personalized femoral stem assembly front view; (d) be personalized femoral stem components side view; 1 standard type tibia support part, 2 standard type tibial plateau parts, 3 standard type condyle of femur parts, 4 personalized femoral stem assemblies, 5 type femoral bone end prosthesis standard type fore-ends, the personalized rear end part of 6 type femoral bone end prosthesis.
The specific embodiment
The below elaborates to embodiment of the present utility model; present embodiment is implemented under take technical solutions of the utility model as prerequisite; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment
Present embodiment provides a kind of Combined type personalized artificial knee joint prosthesis structure, shown in Fig. 1 (a) and Fig. 1 (b), this borrowed structure comprises: standard type tibia support part 1, standard type tibial plateau part 2, standard type condyle of femur part 3 and personalized femoral stem assembly 4, wherein: standard type tibia support part 1, standard type tibial plateau part 2 and standard type condyle of femur part 3 still adopt at present common borrowed structure shape, can carry out mass production processing.Personalized femoral stem assembly 4 links with standard type condyle of femur part 3, carries out personalized design processing according to the osteotomy scheme of formulating before the operation and patient's femoral cavity planform size.
Personalized femoral stem assembly 4 in the present embodiment comprises: standard type fore-end 5 and personalized rear end part 6, such as Fig. 1 (c) with (d), wherein: the end of standard type fore-end 5 is provided with shape of a saddle structure 7 and realizes the thread connection stationary positioned with the bulge-structure 8 that is arranged at standard type condyle of femur part 3 inside, and this shape of a saddle structure 7 matches each other with the appearance profile of bulge-structure 8; Personalized rear end part 6 is pyramidal structure, and its shape is complementary to satisfy different patient's individual demands from actual osteotomy and femoral cavity structure.
Described femoral stem component standard type fore-end 5 adopts the normal structure size, mass production processing.Only the personalized rear end part 6 of femoral stem assembly carries out personalized design processing according to the osteotomy scheme of formulating before the operation and patient's femoral cavity planform size, to satisfy different patient's individual demands.
Claims (5)
1. a combined type artificial knee-joint prosthesis is characterized in that, comprising: the standard type tibia support part, standard type tibial plateau part, standard type condyle of femur part and the personalized femoral stem assembly that connect successively, wherein:
Described personalized femoral stem assembly comprises: standard type fore-end and personalized rear end part, wherein: the standard type fore-end adopts shape of a saddle structure and the bulge-structure that is arranged at standard type condyle of femur inside parts to realize stationary positioned.
2. combined type artificial knee-joint prosthesis according to claim 1 is characterized in that, described shape of a saddle structure and bulge-structure are complementary.
3. combined type artificial knee-joint prosthesis according to claim 1 is characterized in that, described personalized rear end part is pyramidal structure.
4. combined type artificial knee-joint prosthesis according to claim 3 is characterized in that, the shape of described pyramidal structure and actual osteotomy and femoral cavity structure are complementary.
5. combined type artificial knee-joint prosthesis according to claim 1 is characterized in that, described stationary positioned refers to: fix with thread connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230317 CN202801867U (en) | 2012-05-21 | 2012-05-21 | Combined artificial knee joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230317 CN202801867U (en) | 2012-05-21 | 2012-05-21 | Combined artificial knee joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202801867U true CN202801867U (en) | 2013-03-20 |
Family
ID=47860815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220230317 Expired - Fee Related CN202801867U (en) | 2012-05-21 | 2012-05-21 | Combined artificial knee joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202801867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603277A (en) * | 2020-05-28 | 2020-09-01 | 北京市春立正达医疗器械股份有限公司 | Humerus distal prosthesis |
-
2012
- 2012-05-21 CN CN 201220230317 patent/CN202801867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603277A (en) * | 2020-05-28 | 2020-09-01 | 北京市春立正达医疗器械股份有限公司 | Humerus distal prosthesis |
| CN111603277B (en) * | 2020-05-28 | 2024-05-17 | 北京市春立正达医疗器械股份有限公司 | Distal humerus prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20140521 |