CN202982313U - Knee-joint prosthesis - Google Patents

Knee-joint prosthesis Download PDF

Info

Publication number
CN202982313U
CN202982313U CN 201220605900 CN201220605900U CN202982313U CN 202982313 U CN202982313 U CN 202982313U CN 201220605900 CN201220605900 CN 201220605900 CN 201220605900 U CN201220605900 U CN 201220605900U CN 202982313 U CN202982313 U CN 202982313U
Authority
CN
China
Prior art keywords
prosthesis
knee
tibial plateau
plunger
joint
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
Application number
CN 201220605900
Other languages
Chinese (zh)
Inventor
徐�明
于秀淳
许宋锋
Original Assignee
徐�明
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 徐�明 filed Critical 徐�明
Priority to CN 201220605900 priority Critical patent/CN202982313U/en
Application granted granted Critical
Publication of CN202982313U publication Critical patent/CN202982313U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

Abstract

The utility model relates to a knee-joint prosthesis which comprises a thighbone prosthesis and a tibial plateau prosthesis. The lower end of the thighbone prosthesis is of a tacklestructure. A rotating hinge plunger is arranged in the middle of the tackle structure. The rotating hinge plunger is connected with the tackle structure through a transverse rotating shaft. A pad is embedded in the upper end of the tibial plateau prosthesis. An opening matched with the rotating hinge plunger is formed in the rear end of the pad. A rotating hinge column is arranged in the middle of the upper end of the tibial plateau prosthesis. The tibial plateau prosthesis is sleeved with the rotating hinge plunger arranged at the lower end of the thighbone prosthesis through the rotating hinge column. The knee-joint prosthesis is simple in structure, capable of enhancing stability of a joint, suitable for normal physiological rotating motion of a knee joint of a human body and capable of avoiding abrasion caused by direct collision of a metal prosthesis and conducting buffering on local stress, convenience is brought for a patient, and thus the knee-joint prosthesis can be widely popularized and applied.

Description

A kind of knee-joint prosthesis
Technical field
This utility model relates to a kind of knee-joint prosthesis.
Background technology
In recent years, protect the main clinical treatment mode that the limb treatment has become aggressive or malignant bone tumor.The adjacent knee joint bone tumor of distal femur and proximal tibia accounts for very at high proportion, can use tumorous type rotary gemel knee prosthesis replacement.But knee-joint prosthesis stability of joint commonly used is poor at present, and directly contact between metal prostheses, and the time has been grown and easily caused gouging abrasion.
Summary of the invention
For above problem, the utility model proposes a kind of knee-joint prosthesis, adopt this utility model can effectively strengthen the stability in joint, prevent that the metal prostheses direct collision from causing wearing and tearing.
This utility model is mainly by the following technical solutions: a kind of knee-joint prosthesis, comprise femoral prosthesis and tibial plateau prosthese, the femoral prosthesis lower end is pulley structure, is provided with the rotary gemel plunger in the middle of pulley structure, is connected by horizontal rotating shaft between rotary gemel plunger and pulley structure; Tibial plateau prosthese upper end is embedded with liner, and the liner rear end is provided with the opening that matches with the rotary gemel plunger; Tibial plateau prosthese upper center is provided with the rotary gemel post; The tibial plateau prosthese is socketed by the rotary gemel plunger of rotary gemel post with the femoral prosthesis lower end.
Described liner is polyethylene liner.
Adopt said structure, during use, by the rotary gemel plunger socket of rotary gemel post with the femoral prosthesis lower end, so can not move by occurred level, can only do flexion and extension due to the tibial plateau prosthese between the two, strengthened the stability in joint; In addition, rotary gemel plunger socket hinge pillar between the two can be counterrotating, thereby make the rotation that can realize between femoral prosthesis and tibial plateau prosthese to a certain degree, more meets the human body knee joint normal physiological and rotatablely move.
Tibial plateau prosthese upper end is embedded with liner, is equivalent to the effect of meniscus and articular cartilage, can prevent that between metal prostheses, direct collision causes wearing and tearing, cushions local stress.The liner rear end is provided with the opening that matches with the rotary gemel plunger, can guarantee that the patient fully carries out the leg curvature motion.
In sum, this utility model is simple in structure, can effectively strengthen the stability in joint, more meeting the human body knee joint normal physiological rotatablely moves, and avoided the metal prostheses direct collision to cause wearing and tearing, local stress is cushioned, use to bring convenience extensively promotion and application to the patient.
Description of drawings
Fig. 1 is this utility model user mode structural representation;
Fig. 2 is this utility model femoral prosthesis master diagram;
Fig. 3 is this utility model tibial plateau prosthese master diagram;
Fig. 4 is this utility model femoral prosthesis left view;
Fig. 5 is diagram after this utility model tibial plateau prosthese;
Fig. 6 is diagram after this utility model femoral prosthesis.
In figure: 1, femoral prosthesis, 2, the tibial plateau prosthese, 3, the rotary gemel plunger, 4, horizontal rotating shaft, 5, liner, 6, opening, 7, the rotary gemel post.
The specific embodiment
A kind of knee-joint prosthesis comprises femoral prosthesis 1 and tibial plateau prosthese 2, and femoral prosthesis 1 lower end is pulley structure, is provided with rotary gemel plunger 3 in the middle of pulley structure, is connected by horizontal rotating shaft 4 between rotary gemel plunger 5 and pulley structure; Tibial plateau prosthese 2 upper ends are embedded with liner 5, and liner 5 rear ends are provided with the opening 6 that matches with rotary gemel plunger 3; Tibial plateau prosthese upper center is provided with rotary gemel post 7; Tibial plateau prosthese 2 is by rotary gemel plunger 3 sockets of rotary gemel post 7 with femoral prosthesis 1 lower end.
Described liner 5 is polyethylene liner.
Adopt said structure, during use, by rotary gemel plunger 5 sockets of rotary gemel post 7 with femoral prosthesis 1 lower end, so can not move by occurred level, can only do flexion and extension due to tibial plateau prosthese 2 between the two, strengthened the stability in joint; In addition, rotary gemel plunger 3 socket rotary gemel posts 7 between the two can be counterrotating, thereby make the rotation that can realize between femoral prosthesis 1 and tibial plateau prosthese 2 to a certain degree, more meets the human body knee joint normal physiological and rotatablely move.
Tibial plateau prosthese 2 upper ends are embedded with liner 5, are equivalent to the effect of meniscus and articular cartilage, can prevent that between metal prostheses, direct collision causes wearing and tearing, cushions local stress.Liner 5 rear ends are provided with the opening 6 that matches with rotary gemel plunger 3, can guarantee that the patient fully carries out the leg curvature motion.

Claims (2)

1. knee-joint prosthesis, comprise femoral prosthesis (1) and tibial plateau prosthese (2), it is characterized in that: femoral prosthesis (1) lower end is pulley structure, be provided with rotary gemel plunger (3) in the middle of pulley structure, be connected by horizontal rotating shaft (4) between rotary gemel plunger (3) and pulley structure; Tibial plateau prosthese (2) upper end is embedded with liner (5), and liner (5) rear end is provided with the opening (6) that matches with rotary gemel plunger (3); Tibial plateau prosthese (2) upper center is provided with rotary gemel post (7); Tibial plateau prosthese (2) is by rotary gemel plunger (3) socket of rotary gemel post (7) with femoral prosthesis (1) lower end.
2. knee-joint prosthesis according to claim 1 is characterized in that: described liner (5) is polyethylene liner.
CN 201220605900 2012-11-15 2012-11-15 Knee-joint prosthesis Expired - Fee Related CN202982313U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220605900 CN202982313U (en) 2012-11-15 2012-11-15 Knee-joint prosthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220605900 CN202982313U (en) 2012-11-15 2012-11-15 Knee-joint prosthesis

Publications (1)

Publication Number Publication Date
CN202982313U true CN202982313U (en) 2013-06-12

Family

ID=48553547

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220605900 Expired - Fee Related CN202982313U (en) 2012-11-15 2012-11-15 Knee-joint prosthesis

Country Status (1)

Country Link
CN (1) CN202982313U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105105887A (en) * 2015-08-11 2015-12-02 嘉思特华剑医疗器材(天津)有限公司 Forming system for tibial prosthesis adapting to tibial abnormality and defect of different types

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105105887A (en) * 2015-08-11 2015-12-02 嘉思特华剑医疗器材(天津)有限公司 Forming system for tibial prosthesis adapting to tibial abnormality and defect of different types
CN105105887B (en) * 2015-08-11 2019-02-12 嘉思特华剑医疗器材(天津)有限公司 A kind of tibial prosthesis establishment system adapting to different type shin bone deformity and defect

Similar Documents

Publication Publication Date Title
US20090036992A1 (en) Total Knee Arthroplasty Endoprothesis with Third Condyle and Rotating Polyethylene Insert
CN102793594B (en) A kind of artificial knee joint
CN203001180U (en) Rotating hinged artificial knee joint tibial spacer
CN104546387A (en) Bionic energy-storing walking aiding external skeleton
CN202982313U (en) Knee-joint prosthesis
CN202724044U (en) Knee prosthesis
CN203852452U (en) Stable pad type arthroplasty knee joint
CN204951240U (en) Artificial knee joint
CN205885583U (en) Artifical full knee joint prosthesis
CN204971716U (en) Artifical ankle joint
CN102614036B (en) Knee joint prosthesis pad, shinbone base element and knee joint prosthesis
CN103070739A (en) Artificial knee-joint thighbone
CN109620480A (en) Single condyle femoral prosthesis and shin bone liner
CN206822753U (en) A kind of personalized off-loading formula orthopaedic knee brace
CN206473432U (en) A kind of new femoral hip stem prosthesis
CN205849594U (en) High matching degree bion knee-joint prosthesis
CN105012052B (en) Artificial knee joint
CN201168074Y (en) Customized artificial semi-knee joint
CN201350104Y (en) Improved locking plate for patella
CN211863039U (en) Novel knee joint thighbone condyle prosthesis
CN208435862U (en) A kind of bionical acetabular cup prosthesis
CN203447389U (en) Knee joint tibia support of asymmetric structure
CN203059979U (en) Artificial knee joint femur
CN209059589U (en) A kind of kneecap shaping fixture
CN212592575U (en) Artificial knee joint for distal femur of children

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20131115

C17 Cessation of patent right