CN203388964U - Human hip joint for bone replacement and implantation - Google Patents
Human hip joint for bone replacement and implantation Download PDFInfo
- Publication number
- CN203388964U CN203388964U CN201320337369.2U CN201320337369U CN203388964U CN 203388964 U CN203388964 U CN 203388964U CN 201320337369 U CN201320337369 U CN 201320337369U CN 203388964 U CN203388964 U CN 203388964U
- Authority
- CN
- China
- Prior art keywords
- joint
- hip
- hip joint
- mortar
- bulb
- 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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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
- A61F2/32—Joints for the hip
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (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 human hip joint for bone replacement and implantation. The human hip joint comprises a hip joint handle (1) and a bionic joint capsule (2), and is characterized in that a ball (4) is connected to the lower end of the hip joint handle (1) and is matched with an acetabulum (3) to form a joint friction pair; the bionic joint capsule (2) is a bowl-shaped capsule; a central hole is formed in the top of the bionic joint capsule (2); the periphery of a bowl opening is attached to and fixedly connected with the top surface of the acetabulum (3); the ball (4) penetrates through the central hole in the bionic joint capsule (2) and is sleeved and fixedly connected with the bionic joint capsule (2) so as to form a joint cavity (6) among the bionic joint capsule (2), the ball (4) and the acetabulum (3); the hip joint handle (1) is set as a porous tantalum product; the porosity of the porous tantalum product is 60 to 70 percent; a plurality of through holes (7) are additionally formed in a handle body along the horizontal and longitudinal directions of the handle body. The human hip joint can be used for effectively storing a synovial fluid and preventing abrasive particles from leakage, and is good in biocompatibility.
Description
Technical field
This utility model relates to the displacement of medical science bone to be transplanted, and relates in particular to the human hip that a kind of medical science bone displacement is implanted.
Background technology
Artificial hip joint is to consist of the first-class parts of femoral stem, acetabular cup and femur, wherein femoral stem is as the link that connects human femur under loading and human body far-end, by Artificial Intervention, play in vivo fixing and supporting role, to rebuild the anatomical structure of human hip, and realize alleviating pain, improve function and quality of life.But usually exist in existing design: lack the secretion having in human synovial and the joint capsule of storing synovial fluid; The foreign body reaction that the wear particle of artificial hip joint is on the increase and is caused, often causes loosening, the sinking of hip joint, and loses its motor function; Biocompatibility is poor, there will be repulsion and affects its service life with tissue.
Utility model content
The human hip that provides a kind of medical science bone displacement to implant is provided the purpose of this utility model, and this hip joint can effectively be possessed synovial fluid, prevents that abrasive dust granule from leaking outside, and has good biocompatibility concurrently.
The purpose of this utility model is achieved in that
The human hip that medical science bone displacement is implanted, it includes hip joint stalk and bionic joint capsule, it is characterized in that: the lower end of described hip joint stalk connects a bulb, and this bulb and the mortar formation joint-friction that matches is joined pair; Described bionic joint capsule is that centre bore is arranged at bowl shaped bag ，Qi top, and its rim of a bowl periphery posts and fixes and is connected with the end face of described mortar; Described bulb passes the centre bore on described bionic joint capsule, and is set with and is fixedly connected with described bionic joint capsule, thereby forms articular cavity between described bionic joint capsule and described bulb and described mortar; Described hip joint stalk is set to porous tantalum product, and its porosity is 60～70%, and along handle body horizontal and vertical, has additional a plurality of through holes on handle body, to be further beneficial to tissue, grows into, more solid and reliable, also can prevent rotation and sink.
Above-mentioned bulb is metal ball-head or ceramic bulb, and this bulb is realized being fixedly connected with of the two with the hip joint stalk of Corresponding matching by welding, and has prevented rotation.
Above-mentioned mortar is set to polyethylene mortar or ceramic mortar, and this mortar skin also mates and have a metal acetabular, and this metal acetabular is also set to porous tantalum product, and its porosity is 60～70%.This porous tantalum product, can adopt the preparations such as foam dipping method, die pressing.Through the discovery that studies for a long period of time: this artificial joint that adopts porous tantalum product, the structure of growing in making bone grow into form, organically combine as a whole with body bone tissue, when greatly having improved the biocompatibility of this artificial joint, also well met its mechanical property, greatly improved its service life and implanted comfort level, having increased stability and anti-verticity after prosthese is implanted.
Above-mentioned bionic joint capsule is viscoelasticity medical macromolecular materials products, can be specifically silica gel, polyvinyl alcohol, medical nylon, chitosan or other biological material, or by two kinds and two or more composites wherein.
In above-mentioned articular cavity, store synovial fluid.
The surface of above-mentioned hip joint stalk and above-mentioned metal acetabular is also all evenly coated with hydroxyapatite surface coating, so that it has the function of induction bone cell growth.
The utlity model has following beneficial effect:
Its bowl of type bionic joint capsule of hip joint in this utility model, avoided existing when reality is on active service and between mortar the possibility of contact friction, wearing and tearing, effectively possessed synovial fluid, prevented that abrasive dust granule from leaking outside, loosening, sinking and the lost-motion function of hip joint have been avoided, and hip joint stalk and metal acetabular by porous tantalum product can make bone grow into, and realized, organically combine as a whole with body bone tissue, reach real biological fixation, reduced with tissue and occurred the probability of repelling, increased its service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the human hip of the medical science bone displacement implantation in this utility model embodiment 1.
The specific embodiment
Be below this utility model preferred embodiment, and be not intended to limit protection domain of the present utility model.
Embodiment 1
As shown in Figure 1: the human hip that a kind of medical science bone displacement is implanted, it includes hip joint stalk 1 and bionic joint capsule 2; The lower end of its hip joint stalk 1 is connected with a titanium alloy bulb 4, and this titanium alloy bulb 4 and polyethylene mortar 3 match and form joint-friction and join pair; Its bionic joint capsule 2 is bowl shaped bag, adopts medical nylon products ，Qi top to have centre bore, and the end face of its rim of a bowl periphery and polyethylene mortar 3 is fitted and bond fixing; Titanium alloy bulb 4 is through the centre bore on bionic joint capsule 2, and be set with bionic joint capsule 2 and bond and fix, thereby forms articular cavity 6 between bionic joint capsule 2 and titanium alloy bulb 4 and polyethylene mortar 3, in this articular cavity 6, stores synovial fluid; Hip joint stalk 1 is set to porous tantalum product, and its porosity is 60～70%, and along handle body horizontal and vertical, has additional a plurality of through holes 7 on this hip joint stalk 1, and the surface uniform of the hip joint stalk 1 of this porous tantalum product is coated with hydroxyapatite surface coating; This hip joint stalk 1 is realized being fixedly connected with of the two with Corresponding matching titanium alloy bulb 4 by laser weld; The skin of its polyethylene mortar 3 also mates a metal acetabular 5, and this metal acetabular 5 is also set to porous tantalum product, and its porosity is 60～70%, and its surface is also evenly coated with hydroxyapatite surface coating.
In this example, adopt hip joint stalk and the metal acetabular of porous tantalum product, the structure of growing in making bone grow into form, organically combine as a whole with body bone tissue, when greatly having improved the biocompatibility of this artificial joint, also well met its mechanical property, greatly improved its service life and implanted comfort level, having increased stability and anti-verticity after prosthese is implanted.
Claims (7)
1. a medical science bone is replaced the human hip of implanting, it includes hip joint stalk (1) and bionic joint capsule (2), it is characterized in that: the lower end of described hip joint stalk (1) connects a bulb (4), this bulb (4) and a mortar (3) match and form joint-friction and join pair; Described bionic joint capsule (2) has centre bore for bowl shaped bag ，Qi top, and its rim of a bowl periphery posts and fixes and is connected with the end face of described mortar (3); Described bulb (4) passes the centre bore on described bionic joint capsule (2), and is set with and is fixedly connected with described bionic joint capsule (2), thereby forms articular cavity (6) between described bionic joint capsule (2) and described bulb (4) and described mortar (3); Described hip joint stalk (1) is set to porous tantalum product, and its porosity is 60～70%, and on handle body along the horizontal and vertical a plurality of through holes (7) that have additional of handle body.
2. the human hip that medical science bone displacement according to claim 1 is implanted, it is characterized in that: described bulb (4) is metal ball-head or ceramic bulb, and this bulb (4) is realized being fixedly connected with of the two with the hip joint stalk (1) of Corresponding matching by welding.
3. the human hip that medical science bone displacement according to claim 1 and 2 is implanted, it is characterized in that: described mortar (3) is set to polyethylene mortar or ceramic mortar, and this mortar (3) skin also mates a metal acetabular (5), this metal acetabular (5) is also set to porous tantalum product, and its porosity is 60～70%.
4. the human hip that medical science bone displacement according to claim 1 and 2 is implanted, is characterized in that: described bionic joint capsule (2) is viscoelasticity medical macromolecular materials product; Described articular cavity stores synovial fluid in (6).
5. the human hip that the medical science bone displacement of stating according to claim 3 is implanted, is characterized in that: described bionic joint capsule (2) is viscoelasticity medical macromolecular materials product; Described articular cavity stores synovial fluid in (6).
6. the human hip that the medical science bone displacement of stating according to claim 3 is implanted, is characterized in that: the surface of described hip joint stalk (1) and described metal acetabular (5) is also all evenly coated with hydroxyapatite surface coating.
7. the human hip that the medical science bone displacement of stating according to claim 5 is implanted, is characterized in that: the surface of described hip joint stalk (1) and described metal acetabular (5) is also all evenly coated with hydroxyapatite surface coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320337369.2U CN203388964U (en) | 2013-06-13 | 2013-06-13 | Human hip joint for bone replacement and implantation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320337369.2U CN203388964U (en) | 2013-06-13 | 2013-06-13 | Human hip joint for bone replacement and implantation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203388964U true CN203388964U (en) | 2014-01-15 |
Family
ID=49900528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320337369.2U Expired - Fee Related CN203388964U (en) | 2013-06-13 | 2013-06-13 | Human hip joint for bone replacement and implantation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203388964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104825253A (en) * | 2015-05-26 | 2015-08-12 | 北京爱康宜诚医疗器材股份有限公司 | Acetabulum prosthesis |
| CN110461276A (en) * | 2017-03-28 | 2019-11-15 | 陶瓷技术有限责任公司 | Ceramic slide bearing |
-
2013
- 2013-06-13 CN CN201320337369.2U patent/CN203388964U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104825253A (en) * | 2015-05-26 | 2015-08-12 | 北京爱康宜诚医疗器材股份有限公司 | Acetabulum prosthesis |
| CN110461276A (en) * | 2017-03-28 | 2019-11-15 | 陶瓷技术有限责任公司 | Ceramic slide bearing |
| CN110461276B (en) * | 2017-03-28 | 2022-07-29 | 陶瓷技术有限责任公司 | Ceramic sliding bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20190613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |