CN103169549A - Artificial hip joint cuplike cotyle - Google Patents

Artificial hip joint cuplike cotyle Download PDF

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Publication number
CN103169549A
CN103169549A CN201310057757XA CN201310057757A CN103169549A CN 103169549 A CN103169549 A CN 103169549A CN 201310057757X A CN201310057757X A CN 201310057757XA CN 201310057757 A CN201310057757 A CN 201310057757A CN 103169549 A CN103169549 A CN 103169549A
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China
Prior art keywords
hip joint
artificial hip
joint cup
micron
endosphere
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Pending
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CN201310057757XA
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Chinese (zh)
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华子恺
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Priority to CN201310057757XA priority Critical patent/CN103169549A/en
Publication of CN103169549A publication Critical patent/CN103169549A/en
Pending legal-status Critical Current

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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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • 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)
  • 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)
  • Materials For Medical Uses (AREA)

Abstract

The invention discloses an artificial hip joint cuplike cotyle which is at least made up of biological ceramics or vitallium alloy biological materials. The artificial hip joint cuplike cotyle is characterized in that microtexture array surfaces are formed on the area which can be abraded easily at the friction surface of an inner ball of the artificial hip joint cuplike cotyle, namely, a microtexture array is distributed on the edge area of the surface of the inner ball of the artificial hip joint cuplike cotyle and a microtexture array is distributed on the central area of the bottom of the surface of the inner ball of the artificial hip joint cuplike cotyle, so that a series of miniature storage container group structures for synovial fluid or interstitial fluid can be formed. The artificial hip joint cuplike cotyle has good lubrication performance and is capable of reducing the friction effect between a contact interface of the artificial hip joint cuplike cotyle and a contact interface of an artificial thighbone ball and reducing the occurrences of frictions, abrasions and vibrations.

Description

Artificial hip joint cup mortar
Technical field
The present invention relates to a kind of human synovial substitute, a kind of wear-resisting durable artificial hip joint member particularly belongs to the Orthopeadic Surgery implant product line of medical domain.
Background technology
Along with the impact on human synovial of the old and feeble and various joint diseases of human body or wound, caused joint motions secondary local or all damage, cause sufferer handicapped, even function of joint complete failure.For this problem, mainly substitute damaged human body natural joint by prosthetic joint implants, the clinical artificial joint replacement that is called in modern medicine.Displacement by artificial joint not only can alleviate and eliminate patient's pain, and can also rebuild joint motions, helps sufferer to recover the normal activity ability, improves its quality of life.
Hip joint is the important joint of human body, and its motion amplitude is large, carrying is stressed greatly, frequency of utilization is high.Its pathological changes rate of clinical discovery, wear rate are high, therefore also corresponding higher for the displacement demand of artificial hip joint.Present stage, the subject matter of artificial hip joint is the fretting wear that produces between artificial hip joint cup mortar and artificial femur bulb.
Artificial hip joint cup mortar is the important composition parts in artificial hip joint, and its Main Function forms the motion loading end for substituting the human hip mortar with the artificial hip joint ball, and final and joint handle composition artificial hip joint.At present, artificial hip joint cup mortar type is more, can be divided into plastics, metal, ceramic three major types by material, and cup mortar inner surface is shiny surface.In actual applications, the fretting wear of artificial hip joint cup mortar directly has influence on the clinical performance of artificial hip joint, and for example the wearing and tearing of plastic cup mortar can cause the generation of periarticular bone dissolution phenomena, causes joint mobilization; There is cytotoxicity in the abrasive particle of metal cup mortar; The fretting wear meeting of ceramic cup mortar produces ear-piercing abnormal sound.In addition, due to the particularity of implants, after in a single day displacement of artificial hip joint, just be embedded in body, can only overhaul by second operation for the fretting wear problem of cup mortar, brought very big inconvenience with painful to patient, further increased financial burden simultaneously.
Summary of the invention
In order to solve the prior art problem, the object of the invention is to overcome the deficiency that prior art exists, a kind of artificial hip joint cup mortar is provided, has good greasy property, can reduce the rubbing action between artificial hip joint cup mortar and artificial femur ball contact interface, reduce the generation of friction, wearing and tearing and vibration.
Create purpose for reaching foregoing invention, design of the present invention is:
Make little texture array on artificial hip joint cup mortar inner surface, such texture can provide lubricating fluid to artificial hip joint cup mortar with the interface that the artificial femur ball contacts as the miniature memory container of joint fluid or tissue fluid, prevents the generation of dry friction.In addition, in the situation that in, quick gait, increase the probability of happening of elastohydrodynamic lubrication between cup mortar and femoral ball.In the present invention, surperficial little texture type artificial hip joint cup mortar can improve artificial hip joint surface of friction pair contact stress state, improve surperficial wettability, reduce glass mortar and the artificial femur ball is joined stress concentration phenomenon between pair, reduces three-body-abrasion, reduced the generation by vibration that friction causes.
According to the foregoing invention design, the present invention adopts following technical proposals:
A kind of artificial hip joint cup mortar, at least made by bioceramic or vitallium biomaterial, it is characterized in that: the zone easy to wear at the endosphere friction surface of artificial hip joint cup mortar forms little texture array surface, little texture array that namely distributes respectively in the endosphere marginal surface of artificial hip joint cup mortar zone and endosphere surface bottom centre zone, a series of miniature memory container clusters that form joint fluid or tissue fluid are constructed.
Above-mentioned little texture array is that circular miniature pit rearranges by a series of openings, and miniature pit is cylindrical pit or spherical pit.
As the preferred technical scheme of the present invention, at little texture array of the endosphere marginal surface area distribution of artificial hip joint cup mortar, circumferentially distributing along the endosphere marginal surface forms annular anti-friction wear-resistant band.
As the further preferred technical scheme of the present invention, little texture array in the endosphere of artificial hip joint cup mortar surface bottom centre area distribution, take the inner surface bottom centre of artificial hip joint cup mortar as the center of circle, along artificial hip joint cup mortar inner surface bottom diffusion profile formation circular array, and consist of circular anti-friction wear-resistant band.
Distance is 1 * 10 micron～1 * 10 between the unit texture of above-mentioned little texture array of the endosphere marginal surface zone of artificial hip joint cup mortar and endosphere surface bottom centre area distribution 3Between micron, the radius of the miniature pit of single little texture and hole are deeply 1 * 10 micron～1 * 10 3Between micron.
The present invention has following apparent outstanding substantive distinguishing features and remarkable advantage compared with prior art:
1. than Traditional Man articulation coxa cup mortar, the artificial articulation coxa cup mortar of the present invention can improve the subregional stress concentration phenomenon of glass mortar surface element, and reduces this regions wear rate;
2. the artificial articulation coxa cup mortar of the present invention has higher surface wettability, is conducive to the generation of elastohydrodynamic lubrication state, reduces direct contact of glass mortar and femur bulb friction pair;
3. the artificial articulation coxa cup mortar of the present invention can reduce the vibration that produces because of friction between glass mortar and femur bulb and the generation of abnormal sound phenomenon;
4. the artificial articulation coxa cup mortar of the present invention can reduce the abrasive particle diffusion that the artificial hip joint friction pair produces, and reduces the generation of bone dissolution phenomena.
Description of drawings
Fig. 1 is the population structure schematic diagram of the embodiment of the present invention one artificial hip joint cup mortar.
Fig. 2 is little texture array structure schematic diagram in the endosphere marginal surface zone of the embodiment of the present invention one artificial hip joint cup mortar.
Fig. 3 is little texture array structure schematic diagram in the surperficial bottom centre of the endosphere zone of the embodiment of the present invention one artificial hip joint cup mortar.
Fig. 4 is the miniature pit shape schematic diagram of the little texture in the single artificial hip joint cup of the embodiment of the present invention one mortar surface.
Fig. 5 is the miniature pit shape schematic diagram of the little texture in the single artificial hip joint cup of the embodiment of the present invention two mortar surface.
The specific embodiment
Details are as follows for the preferred embodiments of the present invention:
Embodiment one:
Referring to Fig. 1～4, in the present embodiment, a kind of artificial hip joint cup mortar, at least made by bioceramic or vitallium biomaterial, zone easy to wear at the endosphere friction surface of artificial hip joint cup mortar 1 forms little texture array surface, little texture array that namely distributes respectively in the endosphere marginal surface of artificial hip joint cup mortar 1 zone 2 and endosphere surface bottom centre zone 3 forms a series of miniature memory container clusters structures of joint fluid or tissue fluid.In the present embodiment, the slippery inner surface artificial hip joint cup mortar that the present invention is just traditional is improved to little texture surface, and the full contact interface that becomes artificial hip joint cup mortar 1 and artificial femur ball is the Limited contact interface, improves subregion contact surface stress distribution.The a series of miniature memory containers of this little texture are stored joint fluid and tissue fluid whereby, increase the oil film thickness of contact friction, improve artificial hip joint cup mortar surface wettability, help the protein film layer to generate.This little texture mainly is present in glass mortar endosphere marginal surface zone 2 and the surperficial bottom centre of endosphere zone 3, cause the generation of dry friction when preventing the artificial femur ball with cup mortar peripheral collision, and can collect wear particle, reduce abrasive particle to the diffusibility of artificial hip joint stem with the femoral cavity interface, the generation of reduction bone dissolution phenomena.Can improve the subregional stress concentration phenomenon of glass mortar surface element after the present embodiment artificial hip joint cup mortar implant into body; Reduce between glass mortar and femur bulb because of friction and the vibration that produces and the generation of abnormal sound thereupon; Reduce the abrasive particle diffusion that the artificial hip joint friction pair produces, the service life of improving artificial hip joint.
In the present embodiment, referring to Fig. 2～4, little texture array is that circular miniature pit 4 rearranges by a series of openings, and miniature pit 4 is cylindrical pit.Miniature pit 4 can adopt the forming methods such as laser fast shaping, physical chemistry surface etch technique, makes surperficial little texture type artificial hip joint cup mortar convenient, efficient, is easy to realize the industrialization manufacturing.
In the present embodiment, referring to Fig. 1, the 2 little texture arrays that distribute in the endosphere marginal surface of artificial hip joint cup mortar 1 zone, circumferentially distributing along the endosphere marginal surface forms annular anti-friction wear-resistant band, significantly strengthens the rotation lubricant effect of joint pair.
In the present embodiment, referring to Fig. 3, the little texture array that distributes in the surperficial bottom centre of the endosphere of artificial hip joint cup mortar 1 zone 3, take the inner surface bottom centre of artificial hip joint cup mortar 1 as the center of circle, along artificial hip joint cup mortar 1 inner surface bottom diffusion profile formation circular array, and consist of circular anti-friction wear-resistant band, significantly strengthen the friction, lubrication effect in the main power transmission zone of joint pair.
Between the unit texture of the little texture array that distributes in the endosphere marginal surface of artificial hip joint cup mortar 1 zone 2 and endosphere surface bottom centre zone 3 in the present embodiment,, distance is 1 * 10 micron～1 * 10 3Between micron, the radius of the miniature pit 4 of single little texture and hole are deeply 1 * 10 micron～1 * 10 3Between micron.
Embodiment two:
The present embodiment and embodiment one are basic identical, and special feature is:
In the present embodiment, referring to Fig. 5, forming little texture array micro pit 4 is spherical pit, is easy to make, and also can adopt the forming methods such as laser fast shaping, physical chemistry surface etch technique, makes surperficial little texture type.
The above is illustrated the embodiment of the present invention by reference to the accompanying drawings; but the invention is not restricted to above-described embodiment; can also make multiple variation according to the purpose of innovation and creation of the present invention; all according to technical solution of the present invention spirit and principle under make change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence; as long as goal of the invention according to the invention, only otherwise deviate from know-why and the inventive concept of the artificial articulation coxa cup mortar of the present invention, all belong to protection scope of the present invention.

Claims (7)

1. artificial hip joint cup mortar, at least made by bioceramic or vitallium biomaterial, it is characterized in that: the zone easy to wear at the endosphere friction surface of artificial hip joint cup mortar (1) forms little texture array surface, little texture array that namely distributes respectively in the endosphere marginal surface of artificial hip joint cup mortar (1) zone (2) and endosphere bottom centre zone, surface (3), a series of miniature memory container clusters that form joint fluid or tissue fluid are constructed.
2.2. artificial hip joint cup mortar according to claim 1 is characterized in that: described little texture array is that circular miniature pit (4) rearranges by a series of openings, and described miniature pit (4) is cylindrical pit or spherical pit.
3. artificial hip joint cup mortar according to claim 1 and 2, it is characterized in that: the little texture array that distributes in the described endosphere marginal surface zone (2) of artificial hip joint cup mortar (1), circumferentially distributing along the endosphere marginal surface forms annular anti-friction wear-resistant band.
4. artificial hip joint cup mortar according to claim 3, it is characterized in that: the little texture array that distributes in the described endosphere bottom centre zone, surface (3) of artificial hip joint cup mortar (1), take the inner surface bottom centre of artificial hip joint cup mortar (1) as the center of circle, along artificial hip joint cup mortar (1) inner surface bottom diffusion profile formation circular array, and consist of circular anti-friction wear-resistant band.
5. artificial hip joint cup mortar according to claim 2 is characterized in that: between the unit texture of the little texture array that distributes in described endosphere marginal surface zone (2) and the described endosphere bottom centre zone, surface (3) of artificial hip joint cup mortar (1) apart from 1 * 10 micron～1 * 10 3Between micron, the radius of the miniature pit (4) of single little texture and hole are deeply 1 * 10 micron～1 * 10 3Between micron.
6. artificial hip joint cup mortar according to claim 3 is characterized in that: between the unit texture of the little texture array that distributes in described endosphere marginal surface zone (2) and the described endosphere bottom centre zone, surface (3) of artificial hip joint cup mortar (1) apart from 1 * 10 micron～1 * 10 3Between micron, the radius of the miniature pit (4) of single little texture and hole are deeply 1 * 10 micron～1 * 10 3Between micron.
7. artificial hip joint cup mortar according to claim 4 is characterized in that: between the unit texture of the little texture array that distributes in described endosphere marginal surface zone (2) and the described endosphere bottom centre zone, surface (3) of artificial hip joint cup mortar (1) apart from 1 * 10 micron～1 * 10 3Between micron, the radius of the miniature pit (4) of single little texture and hole are deeply 1 * 10 micron～1 * 10 3Between micron.
CN201310057757XA 2013-02-25 2013-02-25 Artificial hip joint cuplike cotyle Pending CN103169549A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104352291A (en) * 2014-11-05 2015-02-18 上海大学 Surface micro-texture artificial knee joint meniscus
CN104758982A (en) * 2015-04-10 2015-07-08 中国人民解放军第二军医大学 Individual beta-Ti-15Mo alloy-Co-28Cr-6Mo alloy-Al2O3 ceramic acetabulum artificial bone scaffold
CN106137312A (en) * 2016-06-22 2016-11-23 天津理工大学 Antifriction cooling drill bit with micro-texture and preparation method thereof
CN108836576A (en) * 2018-07-18 2018-11-20 北京爱康宜诚医疗器材有限公司 replacement prosthesis
CN108904104A (en) * 2018-07-17 2018-11-30 河南医工智能科技有限公司 It is a kind of based on 3D printing personalization acetabular bone and bone inner support prosthese and the surgical guide being used cooperatively with supporting prostheses and preparation method
CN108969152A (en) * 2018-09-06 2018-12-11 北京安颂科技有限公司 A kind of acetabular component and artificial hip joint

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1527498A (en) * 1974-11-29 1978-10-04 Gaia M Hip joint prosthesis
US4840631A (en) * 1984-08-28 1989-06-20 Robert Mathys Co. Artificial hip joint socket with hydraulic head support
US20030114935A1 (en) * 2001-12-19 2003-06-19 Chan Frank W. Prosthetic joints having reduced area bearing surfaces and application thereof to a range of sizes of prosthetic joints
US20070270975A1 (en) * 2006-05-12 2007-11-22 Finsbury (Development) Limited Prosthesis
DE102007031672A1 (en) * 2006-08-04 2008-02-21 Ceramtec Ag Innovative Ceramic Engineering Ball head with flats to prevent dry running of an artificial hip joint

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1527498A (en) * 1974-11-29 1978-10-04 Gaia M Hip joint prosthesis
US4840631A (en) * 1984-08-28 1989-06-20 Robert Mathys Co. Artificial hip joint socket with hydraulic head support
US20030114935A1 (en) * 2001-12-19 2003-06-19 Chan Frank W. Prosthetic joints having reduced area bearing surfaces and application thereof to a range of sizes of prosthetic joints
US20070270975A1 (en) * 2006-05-12 2007-11-22 Finsbury (Development) Limited Prosthesis
DE102007031672A1 (en) * 2006-08-04 2008-02-21 Ceramtec Ag Innovative Ceramic Engineering Ball head with flats to prevent dry running of an artificial hip joint

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104352291A (en) * 2014-11-05 2015-02-18 上海大学 Surface micro-texture artificial knee joint meniscus
CN104758982A (en) * 2015-04-10 2015-07-08 中国人民解放军第二军医大学 Individual beta-Ti-15Mo alloy-Co-28Cr-6Mo alloy-Al2O3 ceramic acetabulum artificial bone scaffold
CN106137312A (en) * 2016-06-22 2016-11-23 天津理工大学 Antifriction cooling drill bit with micro-texture and preparation method thereof
CN108904104A (en) * 2018-07-17 2018-11-30 河南医工智能科技有限公司 It is a kind of based on 3D printing personalization acetabular bone and bone inner support prosthese and the surgical guide being used cooperatively with supporting prostheses and preparation method
CN108836576A (en) * 2018-07-18 2018-11-20 北京爱康宜诚医疗器材有限公司 replacement prosthesis
CN108969152A (en) * 2018-09-06 2018-12-11 北京安颂科技有限公司 A kind of acetabular component and artificial hip joint

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Application publication date: 20130626