CN105030379A - Combined type artificial hip joint handle - Google Patents
Combined type artificial hip joint handle Download PDFInfo
- Publication number
- CN105030379A CN105030379A CN201510319375.9A CN201510319375A CN105030379A CN 105030379 A CN105030379 A CN 105030379A CN 201510319375 A CN201510319375 A CN 201510319375A CN 105030379 A CN105030379 A CN 105030379A
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- CN
- China
- Prior art keywords
- hip joint
- artificial hip
- handle
- described part
- metal
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Classifications
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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
- A61F2/32—Joints for the hip
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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)
Abstract
The invention relates to a combined type artificial hip joint handle which comprises a hollow cone-shaped body and a handle body, wherein the hollow cone-shaped body is used for being fixed to the upper end of a thighbone cavity, and comprises a first part positioned on the outer surface and a second part on the inner surface, wherein the first part sleeves the second part, the second part sleeves the handle body, and is made of a biocompatible high polymer material, the handle body is used for being fixed to the joint bulb and the distal femur, and is made of a biocompatible metal material, the hollow cone-shaped body and the handle part are independent from each other. With the adoption of the structure, the contact among metal is avoided, the stress and stress concentration of the contact face are reduced, and the gaps among the contact faces are reduced or eliminated. With the adoption of an interface composed of the high polymer material and the metal material, the electrochemical reaction easily generated to a metal-metal interface under the condition that liquid exists is avoided, and thus the possibility of metal corrosion and wear is reduced.
Description
Technical field
The present invention relates to a kind of medical rehabilitation instrument, more specifically, relate to a kind of Combined artificial hip joint handle.
Background technology
Replacement of Hip Joint is one of significant medical invention having obtained extensive clinical practice since the sixties in 20th century.The design of modern artificial hip joint contains two large divisions, and Part I is be fixed on the acetabular cup of pelvis acetabular fossa and be arranged on the friction lining of acetabular cup inside, and Part II is be fixed on the joint handle of femur inner chamber and be arranged on the friction bulb of joint handle upper end.Because skeleton anatomical structure comes in every shape, doctor wishes to adjust in operation relative position between acetabular cup and joint handle to reach optimum stability and the mobility of joint entirety, and the invention of Combined type joint handle becomes solution (SpitzerAI.TheS-ROMcementlessfemoralstem:historyandlitera turereview.Orthopedics.2005Sep the most frequently used in decades recently; 28 (9Suppl): s1117-24).
Modern modular joint handle takes the following two kinds to design substantially: first, the Combined type joint handle that can regulate in art is combined into for the hollow vertebral body of fixing with femoral cavity upper end and the handle for fixing with femur bulb and distal femur, molectron is formed by metal material, particularly titanium alloy, the representational product of most is S-ROM (the SpitzerAI.TheS-ROMcementlessfemoralstem:historyandlitera turereview.Orthopedics.2005Sep of Johson & Johnson; 28 (9Suppl): s1117-24); Second, overall structures for fixing handle parts with femoral cavity upper end and far-end, there is the rectangular hollow vertebral body of a hollow vertebral body or band circular arc the upper end of this structure, being used for fixing that this hollow body and an external shape match is combined with the vertebral body of support joint bulb, and two parts are formed by metal material.The particularly combination of titanium alloy or titanium alloy and CoCrMo alloy, representative product has the RejuvenantModular (MeftahM of Stryker (Shi Saike) company, HaleemAM, BurnMB, SmithKM, IncavoSJ.Earlycorrosion-relatedfailureoftherejuvenatemod ulartotalhipreplacement.JBoneJointSurgAm.2014Mar19; 96 (6): 481-7.doi:10.2106/JBJS.M.00979) and the Profemur (TheodorouEG1 of WrigntMedical, ProvatidisCG, BabisGC, GeorgiouCS, MegasPD.Largediameterfemoralheadsimposesignificantaltera tionsonthestrainsdevelopedonfemoralcomponentandbone:afin iteelementanalysisOpenOrthopJ.2011; 5:229-38.doi:10.2174/1874325001105010229.Epub2011Jul19.) Combined type joint handle.Be wherein that the design application clinically of representative designs much larger than the second with S-ROM, it is main because larger stress is born than the former in the vertebral body joint portion of the latter's two parts, more easily cause the fine motion of contact interface, thus produce joint portion corrosion of metal and wearing and tearing (MehranN, NorthT, Laker.Failureofamodularhipimplantatthestem-sleeveinterfa ce.Orthopedics.2013Jul; 36 (7): e978-81.doi:10.3928/01477447-20130624-33).Excessive metal ion and granule cause untoward reaction to human body, finally cause knuckle failure and need to carry out revision procedure (WalshCP, HubbardJC, NesslerJP, MarkelDC.RevisionofRecalledModularNeckRejuvenateandABGFe moralImplants.JArthroplasty.2015May; 30 (5): 822-6.doi:10.1016/j.arth.2014.12.002.Epub2014Dec5).But, be that the design of representative exists same corrosion and wear problem in combined interface with S-ROM, just severity is lower than other combination types design (SpitzerAI.TheS-ROMcementlessfemoralstem:historyandlitera turereview.Orthopedics.2005Sep; 28 (9Suppl): s1117-24).
Therefore, a kind of new Combined artificial hip joint handle that the advantage of adjustable position in conventional ASSEMBLE joint handle art can be kept to overcome again metal interface corrosion and wearing and tearing shortcoming is provided to be expect.
Summary of the invention
For the technical problem of above-mentioned solution, the object of this invention is to provide a kind of Combined artificial hip joint handle.
In order to realize foregoing invention, the present invention adopts following technical scheme:
A kind of Combined artificial hip joint handle, comprises hollow vertebral body and handle body, and wherein said hollow vertebral body is used for fixing with femoral cavity upper end, and described hollow vertebral body comprises the Part I being positioned at its outer surface and the Part II being positioned at its inner surface; Described Part I is sleeved on described Part II; Described Part II is sleeved on described handle body, and described Part II is made up of the macromolecular material of biocompatibility; Described handle body is used for fixing with joint ball head and distal femur, and described handle body is made up of biocompatibility metal material; Described hollow vertebral body and described handle body separate.
Further, described Part I is made up of the macromolecular material of biocompatibility metal material or biocompatibility.
Further, the outer surface of described Part I is loose structure or is shaggy non-porous structure, or the outer surface spraying of described Part I promotes the coating of osteogenesis.
Further, the hole ratio of described loose structure is not less than 10%; The roughness of described shaggy non-porous structure is not less than 0.1 μm (Ra); Described coating is hydroxyapatite.
Further, described Part I and Part II are combined closely into a single integrated structure.
Further, described Part I is by machining molding or by metal 3D printing shaping; Described Part II is by the integrated injection molding that combines with described Part I or spray to the molding of Part I inner surface by macromolecular material.
Further, described Part I and Part II separate, form assembly type structure.
Further, described Part I is by machining molding or by metal 3D printing shaping; Described Part II is by machining or injection mo(u)lding.
Further, it is characterized in that, described biocompatibility metal material comprise titanium, titanium alloy, CoCrMo alloy, rustless steel, tantalum, tantalum alloy, zirconium-niobium alloy, Magnesium and magnesium alloys one or more.
Further, the macromolecular material of described biocompatibility comprise polyether-ether-ketone, ultra-high molecular weight polyethylene, politef or derivant corresponding separately or composite one or more.
Owing to adopting above technical scheme, beneficial effect of the present invention is:
1) inner surface of Combined artificial hip joint handle hollow core vertebral body provided by the invention is macromolecular material, the outer surface of handle body is metal material, its combination interface avoids the contact of metal to metal, when joint carries, macromolecular material can produce distortion thus the stress of attenuating contact surface and stress are concentrated and lowers or eliminate the space of contact surface.
2) the hollow vertebral body in structure of the present invention is combined the probability reducing fine motion more closely between handle body.
3) interface that the macromolecular material in structure of the present invention and metal material form reduces the electrochemical reaction that metal to metal interface very easily produces under liquid exists situation, thus reduces the probability of metal erosion and wearing and tearing.
Accompanying drawing explanation
Fig. 1 is the structural representation of Combined artificial hip joint handle provided by the invention;
Fig. 2 is the structural representation of the hollow vertebral body of integrative-structure in structure of the present invention;
Fig. 3 a is the structural representation of the Part I of the hollow vertebral body of assembly type structure in structure of the present invention;
Fig. 3 b is the structural representation of the Part II of the hollow vertebral body of assembly type structure in structure of the present invention.
Description of reference numerals
1 hollow vertebral body, 2 handle bodies, 3 Part I, 4 Part II.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of Combined artificial hip joint handle provided by the invention, comprise hollow vertebral body 1 and handle body 2, its hollow core vertebral body 1 is for fixing with femoral cavity upper end, and hollow vertebral body 1 comprises the Part I 3 being positioned at its outer surface and the Part II 4 being positioned at its inner surface; Part I 3 is sleeved on Part II 4, and Part I 3 is made up of the metal material of biocompatibility or the macromolecular material of biocompatibility, plays the fixation with femur inner chamber; Part II 4 is sleeved on handle body 2, and Part II 4 is made up of the macromolecular material of biocompatibility, plays the fixation with handle body 2; One end of handle body 2 is used for being connected with joint ball head, the other end and distal femur are fixed, and handle body 2 is made up of biocompatibility metal material; Hollow vertebral body 1 and handle body 2 separate.
In technique scheme, the outer surface of Part I 3 is the loose structure that hole ratio is not less than 10%, or the outer surface of Part I 3 is the non-porous structure that rough surface is not less than 0.1 μm (Ra), or the outer surface spraying of Part I 3 promotes the coating of Bone Ingrowth, such as, hydroxyapatite etc.
In technique scheme, biocompatibility metal material comprise titanium, titanium alloy, CoCrMo alloy, rustless steel, tantalum, tantalum alloy, zirconium-niobium alloy, Magnesium and magnesium alloys one or more.
In technique scheme, biocompatible polymer material comprise polyether-ether-ketone, ultra-high molecular weight polyethylene, politef or derivant corresponding separately or composite one or more, the wherein derivant of biocompatible polymer material preferred, polyethers ether ketone or polyether-ether-ketone or composite.
As shown in Figure 2, the structure of a kind of hollow vertebral body 1 provided by the invention, Part I 3 and Part II 4 are combined closely into a single integrated structure.
In technique scheme, Part I 3 can pass through machining, such as, forge, cast, the molding such as machined, also can pass through metal 3D printing shaping; Part II 4 by the integrated injection molding combined with Part I 3, also can spray to the molding of Part I 3 inner surface by macromolecular material.
As best shown in figures 3 a and 3b, the structure of the hollow vertebral body 1 of another kind provided by the invention, Part I 3 and Part II 4 separate, form assembly type structure.As shown in Figure 3 a, the Part I 3 of hollow vertebral body 1 provided by the invention.As shown in Figure 3 b, the Part II 4 of hollow vertebral body 1 provided by the invention.
In technique scheme, Part I 3 can pass through machining, such as, forge, cast, the molding such as machined, also can pass through metal 3D printing shaping; Part II 4 by machining, also can pass through injection mo(u)lding.
Referring again to Fig. 3 a and 3b, Part I 3 and the Part II 4 of hollow vertebral body 1 provided by the invention can be assembled in process of production, also can be installed by doctor in operation process.
Hollow vertebral body 1 in Combined artificial hip joint handle provided by the invention is realized by doctor with the combination of handle body 2 in operation process.Because the inner surface (or being called Part II 4) of hollow vertebral body 1 is biocompatible polymer material, the outer surface of handle body is metal material, so, both combination interfaces avoid the contact of metal to metal, when joint carries, biocompatible polymer material can produce distortion thus the stress of attenuating contact surface and stress are concentrated and lowers or eliminate the space of contact surface.
In addition, the hollow vertebral body 1 in Combined artificial hip joint handle provided by the invention is combined the probability reducing fine motion more closely between handle body 2.
In addition, the interface that the macromolecular material in structure of the present invention and metal material form reduces the electrochemical reaction that metal to metal interface very easily produces under liquid exists situation, thus reduces the probability of metal erosion and wearing and tearing.
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention; If do not depart from the spirit and scope of the present invention, the present invention is modified or equivalent to replace, in the middle of the protection domain that all should be encompassed in the claims in the present invention.
Claims (10)
1. a Combined artificial hip joint handle, is characterized in that, comprises hollow vertebral body and handle body, and wherein said hollow vertebral body is used for fixing with femoral cavity upper end, and described hollow vertebral body comprises the Part I being positioned at its outer surface and the Part II being positioned at its inner surface; Described Part I is sleeved on described Part II; Described Part II is sleeved on described handle body, and described Part II is made up of the macromolecular material of biocompatibility; Described handle body is used for fixing with joint ball head and distal femur, and described handle body is made up of biocompatibility metal material; Described hollow vertebral body and described handle body separate.
2. Combined artificial hip joint handle according to claim 1, is characterized in that, described Part I is made up of the macromolecular material of biocompatibility metal material or biocompatibility.
3. Combined artificial hip joint handle according to claim 2, is characterized in that, the outer surface of described Part I is loose structure or is shaggy non-porous structure, or the outer surface spraying of described Part I promotes the coating of osteogenesis.
4. Combined artificial hip joint handle according to claim 3, is characterized in that, the hole ratio of described loose structure is not less than 10%; The roughness of described shaggy non-porous structure is not less than 0.1 μm (Ra); Described coating is hydroxyapatite.
5., according to described Combined artificial hip joint handle arbitrary in claim 1-4, it is characterized in that, described Part I and Part II are combined closely into a single integrated structure.
6. Combined artificial hip joint handle according to claim 5, is characterized in that, described Part I is by machining molding or by metal 3D printing shaping; Described Part II is by the integrated injection molding that combines with described Part I or spray to the molding of Part I inner surface by macromolecular material.
7., according to described Combined artificial hip joint handle arbitrary in claim 1-4, it is characterized in that, described Part I and Part II separate, form assembly type structure.
8. Combined artificial hip joint handle according to claim 7, is characterized in that, described Part I is by machining molding or by metal 3D printing shaping; Described Part II is by machining or injection mo(u)lding.
9. Combined artificial hip joint handle according to claim 1 and 2, it is characterized in that, described biocompatibility metal material comprise titanium, titanium alloy, CoCrMo alloy, rustless steel, tantalum, tantalum alloy, zirconium-niobium alloy, Magnesium and magnesium alloys one or more.
10. Combined artificial hip joint handle according to claim 1 and 2, it is characterized in that, the macromolecular material of described biocompatibility comprise polyether-ether-ketone, ultra-high molecular weight polyethylene, politef or derivant corresponding separately or composite one or more.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319375.9A CN105030379A (en) | 2015-06-11 | 2015-06-11 | Combined type artificial hip joint handle |
| PCT/CN2015/000725 WO2016197281A1 (en) | 2015-06-11 | 2015-10-28 | Integrated artificial hip joint stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319375.9A CN105030379A (en) | 2015-06-11 | 2015-06-11 | Combined type artificial hip joint handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105030379A true CN105030379A (en) | 2015-11-11 |
Family
ID=54437760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510319375.9A Pending CN105030379A (en) | 2015-06-11 | 2015-06-11 | Combined type artificial hip joint handle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105030379A (en) |
| WO (1) | WO2016197281A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106983583A (en) * | 2017-04-27 | 2017-07-28 | 北京爱康宜诚医疗器材有限公司 | Bone prosthesis |
| CN107137786A (en) * | 2016-03-25 | 2017-09-08 | 文阳洋 | A kind of preparation method of reduction of the fracture internal fixation material and internal fixation nail |
| CN107224616A (en) * | 2016-03-25 | 2017-10-03 | 文阳洋 | A kind of joint prosthesis preparation method |
| CN107224611A (en) * | 2016-03-25 | 2017-10-03 | 文阳洋 | A kind of composite joint handle and preparation method thereof |
| CN107224615A (en) * | 2016-03-25 | 2017-10-03 | 文阳洋 | A kind of artificial bionic bone and its synthetic method |
| CN109789023A (en) * | 2016-07-29 | 2019-05-21 | 阿斯卡拉波股份有限公司 | Implantation material and joint implant |
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| CN103622765A (en) * | 2013-11-08 | 2014-03-12 | 深圳先进技术研究院 | Artificial hip joint structure |
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| US7892290B2 (en) * | 2004-05-28 | 2011-02-22 | Smith & Nephew, Inc. | Fluted sleeve hip prosthesis for modular stem |
| GB0702864D0 (en) * | 2007-02-14 | 2007-03-28 | Benoist Girard Sas | Prosthetic implant for use without bone cement |
| CN101336847B (en) * | 2008-08-26 | 2010-06-23 | 北京天新福医疗器材有限公司 | Metal hip joint combined handle |
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2015
- 2015-06-11 CN CN201510319375.9A patent/CN105030379A/en active Pending
- 2015-10-28 WO PCT/CN2015/000725 patent/WO2016197281A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20010016780A1 (en) * | 2000-02-16 | 2001-08-23 | Yoon Yong San | Metal jacket for a cementless artificial joint stem and artificial joint having the jacket |
| US20120221116A1 (en) * | 2005-02-22 | 2012-08-30 | Zimmer, Inc. | Hip stem prosthesis |
| US20110166668A1 (en) * | 2006-03-20 | 2011-07-07 | Zimmer, Inc. | Prosthetic hip implants |
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| CN201624813U (en) * | 2010-03-12 | 2010-11-10 | 北京爱康宜诚医疗器材有限公司 | Proximal-fusion filling sheath assembled femoral shaft |
| CN104042361A (en) * | 2013-03-14 | 2014-09-17 | 德普伊新特斯产品有限责任公司 | Femoral Component For An Implantable Hip Prosthesis |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107137786A (en) * | 2016-03-25 | 2017-09-08 | 文阳洋 | A kind of preparation method of reduction of the fracture internal fixation material and internal fixation nail |
| CN107224616A (en) * | 2016-03-25 | 2017-10-03 | 文阳洋 | A kind of joint prosthesis preparation method |
| CN107224611A (en) * | 2016-03-25 | 2017-10-03 | 文阳洋 | A kind of composite joint handle and preparation method thereof |
| CN107224615A (en) * | 2016-03-25 | 2017-10-03 | 文阳洋 | A kind of artificial bionic bone and its synthetic method |
| CN109789023A (en) * | 2016-07-29 | 2019-05-21 | 阿斯卡拉波股份有限公司 | Implantation material and joint implant |
| US11304810B2 (en) | 2016-07-29 | 2022-04-19 | Aesculap AQ | Implant and joint implant |
| CN106983583A (en) * | 2017-04-27 | 2017-07-28 | 北京爱康宜诚医疗器材有限公司 | Bone prosthesis |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016197281A1 (en) | 2016-12-15 |
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