CN104887357A - Artificial elbow joint - Google Patents
Artificial elbow joint Download PDFInfo
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- CN104887357A CN104887357A CN201510370212.3A CN201510370212A CN104887357A CN 104887357 A CN104887357 A CN 104887357A CN 201510370212 A CN201510370212 A CN 201510370212A CN 104887357 A CN104887357 A CN 104887357A
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- elbow joint
- ulna
- artificial elbow
- humeral component
- joint according
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Abstract
The invention provides an artificial elbow joint and belongs to the field of medical instruments for department of orthopedics. The artificial elbow joint comprises an ulna part used for being connected with an ulna and a humerus part used for being connected with a humerus, the ulna part and the humerus part are movably connected, a sliding part is connected between the ulna part and the humerus part, one end of the sliding part is movably connected on the ulna part while the other end of the same is slidably connected on the humerus part, a protecting sleeve is arranged at a connecting end of the ulna part and the humerus part, a damping groove is formed in the center of the protecting sleeve, and a damping pad is arranged in the damping groove. The artificial elbow joint is simple in structure, reasonable in design and convenient to mount, normal bending and extending movement of the elbow joint can be realized while stability of the same is guaranteed, and the artificial elbow joint is conducive to realizing elbow joint movement of a patient as soon as possible.
Description
Technical field
The present invention relates to orthopaedics medical instruments field, specifically a kind of artificial elbow joint.
Background technology
When because of rheumatism, osteoarthrisis deformans knee or wound equivalent damage elbow joint, make the afunction of elbow joint, feel fierce pain simultaneously.In this case, in order to recover the function of elbow joint, need the replacement operation carrying out artificial elbow joint.Artificial elbow joint to have in humerus amphi position portion fixing humeral component and ulna parts fixing in ulna peri position portion, the end coordinative role of these assemblies and form joint portion.Great majority are artificial elbow joints that humeral component and ulna parts are mechanically connected by linkage etc.But these artificial elbow joints do not arrange supporting mechanism and protection mechanism, along with the growth of service time, humeral component and ulna superstructure loosening or displacement, affect the normal exercising elbow joint of patient.
Summary of the invention
The problem to be solved in the present invention is: overcome the deficiencies in the prior art, and provide a kind of artificial elbow joint, structure is simple, reasonable in design, easy for installation, while the normal flexion-extension motion of elbow joint can be realized, its stability can be ensured again, contribute to the exercising elbow joint realizing patient early.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of artificial elbow joint, comprise one for connect ulna ulna parts with one for being connected the humeral component of humerus, described ulna parts are flexibly connected with humeral component, a slide unit is connected between described ulna parts and humeral component, one end of described slide unit is movably connected on ulna parts, the other end is slidably connected in humeral component, the link of described ulna parts and humeral component is provided with a protective sleeve, the center of described protective sleeve is provided with a damping trough, a cushion is provided with in described damping trough.
Further, described ulna parts are provided with a groove, and one end of described slide unit is articulated with in groove.
Further, described humeral component is provided with a chute, and the other end of described slide unit is provided with sliding axle, and described sliding axle slides in chute.
Further, the two ends of described sliding axle are equipped with a limited cap, and the material of described limited cap is high hinge ultra-high molecular weight polyethylene.
Further, the both sides of described chute are provided with limit channels, and the two ends of described sliding axle are positioned at limit channels.
Further, described limit channels has several spacing draw-in grooves, the gradient of the upper end of described spacing draw-in groove is greater than the gradient of lower end.
Further, described ulna parts and humeral component are equipped with lockhole, in described lockhole, have lock screw to pass.
Further, the material of described lock screw is Ti-6Al-4V.
Further, the material of described ulna parts is Ti-6Al-4V; The material of described humeral component is Ti-6Al-4V; The material of described cushion is high hinge ultra-high molecular weight polyethylene.
Further, the material of described sliding axle and slide unit is CoCrMo alloy.
The advantage that the present invention has and good effect are:
Structure of the present invention is simple, and reasonable in design, easy for installation, between ulna parts and humeral component, connect slide unit, the sliding axle of slide unit slides in chute, and the two ends of sliding axle are positioned at the spacing draw-in groove of limit channels, plays and supports and spacing effect; The link of ulna parts and humeral component is provided with protective sleeve; be provided with cushion in protective sleeve, protective sleeve and cushion play the effect of protection elbow joint, while can realizing elbow joint flexion-extension motion; its stability can be ensured again, contribute to the exercising elbow joint realizing patient early.
Accompanying drawing explanation
Fig. 1 is the structural representation of artificial elbow joint of the present invention.
Structural representation when Fig. 2 is the present invention's artificial elbow joint bending certain angle.
Fig. 3 is the structural representation of the protective sleeve of artificial elbow joint of the present invention.
Fig. 4 is the structural representation of the chute of artificial elbow joint of the present invention.
Fig. 5 is the structural representation of the sliding axle of artificial elbow joint of the present invention.
Fig. 6 is the structural representation of the lock screw of artificial elbow joint of the present invention.
In figure: 1, ulna parts; 2, humeral component; 3, slide unit; 4, groove; 5, chute; 6, sliding axle; 7, limit channels; 8, protective sleeve; 9, damping trough; 10, cushion; 11, spacing draw-in groove; 12, limited cap; 13, lockhole; 14, lock screw.
Detailed description of the invention
As Figure 1-5, a kind of artificial elbow joint, comprise one for connect ulna ulna parts 1 with one for being connected the humeral component 2 of humerus, the material of ulna parts 1 and humeral component 2 is Ti-6Al-4V, ulna parts 1 and humeral component 2 are articulated and connected, a slide unit 3 is connected between ulna parts 1 and humeral component 2, ulna parts 1 are provided with a groove 4, one end of slide unit 3 is articulated with in groove 4, humeral component 2 is provided with a chute 5, the other end of slide unit 3 is provided with sliding axle 6, the material of sliding axle 6 and slide unit 3 is CoCrMo alloy, the two ends of sliding axle 6 are equipped with a limited cap 12, the material of limited cap 12 is high hinge ultra-high molecular weight polyethylene, the both sides of chute 5 are provided with limit channels 7, limit channels 7 there are seven spacing draw-in grooves 11, the gradient of the upper end of spacing draw-in groove 11 is greater than the gradient of lower end, slide in the two ends of sliding axle 6 in chute 5, the two ends of sliding axle 6 are positioned at the spacing draw-in groove 11 of limit channels 7, and it is spacing by limited cap 12, prevent sliding axle 6 from rocking, unstable, the link of ulna parts 1 and humeral component 2 is provided with a protective sleeve 8, the center of protective sleeve 8 is provided with a damping trough 9, cushion 10 is positioned at damping trough 9, the material of cushion 10 is high hinge ultra-high molecular weight polyethylene, ulna parts 1 and humeral component 2 are equipped with lockhole 13, lock screw 14 is had to pass in lockhole 13, the material of lock screw 14 is Ti-6Al-4V.
The work process of this example: ulna parts 1 are connected proximal ulna, and fix by lock screw 14, humeral component 2 is connected distal humerus, and fix by lock screw 14, artificial elbow joint is when completing flexion and extension, the sliding axle 6 of slide unit 3 slides in chute 5, the two ends of sliding axle 6 are positioned at the spacing draw-in groove 11 of limit channels 7, play and support and spacing effect, the link of ulna parts 1 and humeral component 2 is provided with protective sleeve 8, cushion 10 is provided with in protective sleeve 8, protective sleeve 8 and cushion 10 play the effect of protection elbow joint, while elbow joint flexion-extension motion can be realized, its stability can be ensured again, contribute to the exercising elbow joint realizing patient early.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiments of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (10)
1. an artificial elbow joint; comprise one for connect ulna ulna parts with one for being connected the humeral component of humerus; described ulna parts are flexibly connected with humeral component; it is characterized in that: between described ulna parts and humeral component, connect a slide unit; one end of described slide unit is movably connected on ulna parts; the other end is slidably connected in humeral component; the link of described ulna parts and humeral component is provided with a protective sleeve; the center of described protective sleeve is provided with a damping trough, is provided with a cushion in described damping trough.
2. a kind of artificial elbow joint according to claim 1, is characterized in that: described ulna parts are provided with a groove, and one end of described slide unit is articulated with in groove.
3. a kind of artificial elbow joint according to claim 1, it is characterized in that: described humeral component is provided with a chute, the other end of described slide unit is provided with sliding axle, and described sliding axle slides in chute.
4. a kind of artificial elbow joint according to claim 3, is characterized in that: the two ends of described sliding axle are equipped with a limited cap, and the material of described limited cap is high hinge ultra-high molecular weight polyethylene.
5. a kind of artificial elbow joint according to claim 4, it is characterized in that: the both sides of described chute are provided with limit channels, the two ends of described sliding axle are positioned at limit channels.
6. a kind of artificial elbow joint according to claim 5, is characterized in that: described limit channels has several spacing draw-in grooves, and the gradient of the upper end of described spacing draw-in groove is greater than the gradient of lower end.
7. a kind of artificial elbow joint according to claim 6, is characterized in that: described ulna parts and humeral component are equipped with lockhole, have lock screw to pass in described lockhole.
8. a kind of artificial elbow joint according to claim 7, is characterized in that: the material of described lock screw is Ti-6Al-4V.
9. a kind of artificial elbow joint according to any one of claim 1-7, is characterized in that: the material of described ulna parts is Ti-6Al-4V; The material of described humeral component is Ti-6Al-4V; The material of described cushion is high hinge ultra-high molecular weight polyethylene.
10. a kind of artificial elbow joint according to claim 3, is characterized in that: the material of described sliding axle and slide unit is CoCrMo alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370212.3A CN104887357B (en) | 2015-06-29 | 2015-06-29 | Artificial elbow joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370212.3A CN104887357B (en) | 2015-06-29 | 2015-06-29 | Artificial elbow joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104887357A true CN104887357A (en) | 2015-09-09 |
| CN104887357B CN104887357B (en) | 2017-04-26 |
Family
ID=54020624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510370212.3A Active CN104887357B (en) | 2015-06-29 | 2015-06-29 | Artificial elbow joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104887357B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966031A (en) * | 2019-04-29 | 2019-07-05 | 中南大学湘雅医院 | an elbow joint |
| CN110393613A (en) * | 2019-08-14 | 2019-11-01 | 北京市春立正达医疗器械股份有限公司 | An elbow prosthesis |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5723015A (en) * | 1993-02-10 | 1998-03-03 | Risung; Finn | Elbow prosthesis |
| CN2659380Y (en) * | 2003-11-28 | 2004-12-01 | 曲彦隆 | Replacable prothesis of self-locking whole elbow joint |
| CN203280543U (en) * | 2013-04-26 | 2013-11-13 | 北京力达康科技有限公司 | Micro-hole tantalum coating assembly type rotary knee joint prosthesis |
| CN204766047U (en) * | 2015-06-29 | 2015-11-18 | 北京贝思达生物技术有限公司 | Artifical elbow joint |
-
2015
- 2015-06-29 CN CN201510370212.3A patent/CN104887357B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5723015A (en) * | 1993-02-10 | 1998-03-03 | Risung; Finn | Elbow prosthesis |
| CN2659380Y (en) * | 2003-11-28 | 2004-12-01 | 曲彦隆 | Replacable prothesis of self-locking whole elbow joint |
| CN203280543U (en) * | 2013-04-26 | 2013-11-13 | 北京力达康科技有限公司 | Micro-hole tantalum coating assembly type rotary knee joint prosthesis |
| CN204766047U (en) * | 2015-06-29 | 2015-11-18 | 北京贝思达生物技术有限公司 | Artifical elbow joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966031A (en) * | 2019-04-29 | 2019-07-05 | 中南大学湘雅医院 | an elbow joint |
| CN110393613A (en) * | 2019-08-14 | 2019-11-01 | 北京市春立正达医疗器械股份有限公司 | An elbow prosthesis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104887357B (en) | 2017-04-26 |
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