CN104887353A - Femoral head prosthesis - Google Patents
Femoral head prosthesis Download PDFInfo
- Publication number
- CN104887353A CN104887353A CN201510364220.7A CN201510364220A CN104887353A CN 104887353 A CN104887353 A CN 104887353A CN 201510364220 A CN201510364220 A CN 201510364220A CN 104887353 A CN104887353 A CN 104887353A
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- China
- Prior art keywords
- femoral head
- prosthesis
- head prosthesis
- femoral
- bone
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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
- A61F2/36—Femoral heads ; Femoral endoprostheses
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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 discloses a femoral head prosthesis. The femoral head prosthesis is implanted and fixed on the femoral head in the body of a patient; a plurality of lugs (2) are arranged on the side surface of the femoral head prosthesis (1); the lugs (2) can be inserted into the femoral head to fix the femoral head prosthesis (1); bone trabeculas (4) are arranged on the two sides of the lugs (2) and in contact with the femoral head; the surfaces of the bone trabeculas are rough surfaces so that the femoral head prosthesis can be fixed in the femoral head. The femoral head prosthesis is used for overcoming the current situation that the whole hip joint needs to be replaced for the existing femoral head necrosis and no femoral stem and whole acetabulum are needed; for the femoral head necrosis due to pathological changes, the necrotic femoral head part is just cut off and replaced, and the good femoral head is retained; as a result, the problem of stability at later stage of a young patient due to large bone cut-off amount; the femoral head prosthesis is wider in application range for patients; the prosthesis can be implanted more conveniently, the wound area is small, and a good bone ingrowth property is achieved; besides, the curative effect at later stage is more remarkable.
Description
Technical field
The present invention relates to a kind of femoral head prosthesis, particularly relate to a kind of femoral head prosthesis for femoral head necrosis surgery.
Background technology
Femoral head prosthesis is used to the surgical implant replacing human hip partial femoral head.At present, existing femoral head prosthesis need combinationally use with femoral stem, full acetabular bone, performs the operation for hip joint half hip replacement.
Above-mentioned hip joint, though alternative femoral hip prosthesis head part, has progressive, but finds also there is some shortcomings in its structure when reality uses, and cause this femoral head prosthesis to have limitation, its shortcoming comprises:
1) use of patient covers a people group of mean people, existing hip prosthesis is single formula structure, tandem product, its femoral head shape ratio is fixing, cannot regulate, but in fact the femoral head of patient has multifarious feature, therefore hip prosthesis can only meet an a kind of patient of femoral head form, and its scope of application will be subject to significant limitation.
2) wound area is large, and existing femoral head replacement needs to install femoral stem, femoral head and full acetabular bone, and corresponding osteotomy increases, and destroys existing good osseous tissue;
3) need to install fixing accurately according to the femoral head of personal settings, need identical osteotomy site during installation, otherwise there will be excessive wear and wear particle, most of femur head necrosis is subsided case, personalized femoral head cannot be used.
Summary of the invention
The object of the present invention is to provide a kind of fixation, replace the femoral head prosthesis of necrotic femoral head.
For achieving the above object, the concrete technical scheme of a kind of femoral head prosthesis of the present invention is:
A kind of femoral head prosthesis, implant and be fixed on the femoral head in patient, the side of femoral head prosthesis is provided with multiple projection, and projection can be inserted on femoral head with resected femur head prosthesis; Protruding both sides are provided with bone trabecula, and bone trabecula contacts with femoral head, and bone trabecular surface is matsurface, is fixed in femoral head to make femoral head prosthesis.
Further, the outer surface of femoral head prosthesis is even surface, with anti-wear generation granule.
Further, the protruding both sides on femoral head prosthesis are provided with fixing hole, and fixing hole is the through hole on bone trabecula, and femoral head prosthesis can be fixed on femoral head through fixing hole by fixture.
Further, fixture can be screw, and femoral head prosthesis is fixed on femoral head through fixing hole by screw.
Further, protruding cylindrical, multiple projecting parallel is arranged on femoral head prosthesis.
Further, adjacent two protruding length are not identical.
The advantage of a kind of femoral head prosthesis of the present invention is:
1) femoral head prosthesis has good wearability and biocompatibility;
2) fixed by Embedded agnail and screw, there is good stability;
3) surface forms burnishing surface by polishing, reduces the generation of abrasion and wear particle;
4) joint contact face is trabecular bone structure, adds roughness, is convenient to osteogenesis;
5) X-ray by sufferer carries out customized according to necrotic femoral head to the shape of femoral head prosthesis, makes the femoral head prosthesis highly meeting sufferer;
6) overcome the present situation that existing femur head necrosis needs to replace a set of hip joint, do not need femoral stem and full acetabular bone;
7) femoral head generation pathological changes is downright bad, only need by the partial femoral head of necrosis excision displacement, retain good femoral head, solve young patient because of osteotomy amount large, the problem of stability at later stage, wider to the scope of application of patient, Using prosthesis is convenient, wound area is little, and have good Bone Ingrowth, Late curative effect is more remarkable.
Accompanying drawing explanation
Fig. 1 is the structural representation of femoral head prosthesis of the present invention;
Fig. 2 is the left view of femoral head prosthesis in Fig. 1.
Detailed description of the invention
In order to better understand object of the present invention, structure and function, below in conjunction with accompanying drawing, further detailed description is done to a kind of femoral head prosthesis of the present invention.
As depicted in figs. 1 and 2, it shows for a kind of femoral head prosthesis of the present invention, for replacing the femoral head that pathological changes necrosis occurs, implant and be fixed on the good femoral head in patient, one side of femoral head prosthesis 1 is provided with multiple protruding 2, and protruding 2 can insert on femoral head with resected femur head prosthesis 1; The outer surface of femoral head prosthesis 1 becomes even surface 3 by polishing, in case friction and wear causes producing granule; The both sides of protruding 2 are provided with bone trabecula, and bone trabecula contacts with femoral head, bone trabecular rough surface, adds the roughness of femoral head prosthesis 1, is conducive to femoral head prosthesis and grows in femoral head.
Further, projection 2 both sides on femoral head prosthesis 1 are provided with fixing hole 5, and fixing hole 5 is the through hole on bone trabecula, and femoral head prosthesis 1 can be fixed on femoral head through fixing hole 5 by fixture, to be inserted in femoral head by stable for projection, there is good stability.Wherein, fixture can be screw, and femoral head prosthesis is fixed in femoral head through fixing hole by screw.
Further, protruding 2 cylindrical, multiple protruding 2 are arranged in parallelly arranged on femoral head prosthesis 1.In addition, the length of two adjacent projections 2 is not identical.
Further, the shape of femoral head prosthesis 1 can customize according to the X-ray situation of sufferer, make the femoral head prosthesis meeting sufferer necrotic femoral head shape before surgery, by necrotic femoral head excision in femoral head, be left the good femoral head of pathological changes necrosis, then femoral head prosthesis is fit in good femoral head.
Femoral head prosthesis of the present invention, femoral head prosthesis has good wearability and biocompatibility; Fixed by Embedded agnail and screw, there is good stability; Surface forms burnishing surface by polishing, reduces the generation of abrasion and wear particle; Joint contact face is trabecular bone structure, adds roughness, is convenient to osteogenesis; X-ray by sufferer carries out customized according to necrotic femoral head to the shape of femoral head prosthesis, makes the femoral head prosthesis highly meeting sufferer; Overcome the present situation that existing femur head necrosis needs to replace a set of hip joint, do not need femoral stem and full acetabular bone; Femoral head generation pathological changes is downright bad, only need by the partial femoral head of necrosis excision displacement, retain good femoral head, solve young patient because of osteotomy amount large, the problem of stability at later stage, wider to the scope of application of patient, Using prosthesis is convenient, wound area is little, and have good Bone Ingrowth, Late curative effect is more remarkable.
Further describe invention has been by specific embodiment above; but it should be understood that; here concrete description; should not be construed as the restriction to the spirit and scope of the invention; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the present invention protects after reading this specification.
Claims (6)
1. a femoral head prosthesis, implant and be fixed on the femoral head in patient, it is characterized in that, the side of femoral head prosthesis (1) is provided with multiple projection (2), and protruding (2) can insert on femoral head with resected femur head prosthesis (1); Protruding (2) both sides are provided with bone trabecula (4), and bone trabecula (4) contacts with femoral head, and bone trabecular surface is matsurface, is fixed in femoral head to make femoral head prosthesis.
2. femoral head prosthesis according to claim 1, is characterized in that, the outer surface of femoral head prosthesis (1) is even surface (3), with anti-wear generation granule.
3. femoral head prosthesis according to claim 1, it is characterized in that, projection (2) both sides on femoral head prosthesis (1) are provided with fixing hole (5), fixing hole (5) is the through hole on bone trabecula (4), and fixture can pass fixing hole (5) and is fixed on femoral head by femoral head prosthesis (1).
4. femoral head prosthesis according to claim 3, is characterized in that, fixture can be screw, and femoral head prosthesis (1) is fixed on femoral head through fixing hole (5) by screw.
5. femoral head prosthesis according to claim 1, is characterized in that, protruding (2) are cylindrical, and multiple projection (2) is arranged in parallel to be arranged on femoral head prosthesis (1).
6. femoral head prosthesis according to claim 1, is characterized in that, the length of two adjacent projections (2) is not identical.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510364220.7A CN104887353A (en) | 2015-06-26 | 2015-06-26 | Femoral head prosthesis |
| CN201510582443.0A CN105078619A (en) | 2015-06-26 | 2015-09-14 | Femoral prosthesis and using method |
| CN201510661290.9A CN105125325A (en) | 2015-06-26 | 2015-10-14 | Manufacturing method for customizing femoral head necrosis repair module by applying three-dimensional printing technology |
| PCT/CN2016/082209 WO2016206500A1 (en) | 2015-06-26 | 2016-05-16 | 3d printed custom module capable of treating osteonecrosis of hip and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510364220.7A CN104887353A (en) | 2015-06-26 | 2015-06-26 | Femoral head prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104887353A true CN104887353A (en) | 2015-09-09 |
Family
ID=54020620
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510364220.7A Pending CN104887353A (en) | 2015-06-26 | 2015-06-26 | Femoral head prosthesis |
| CN201510582443.0A Pending CN105078619A (en) | 2015-06-26 | 2015-09-14 | Femoral prosthesis and using method |
| CN201510661290.9A Pending CN105125325A (en) | 2015-06-26 | 2015-10-14 | Manufacturing method for customizing femoral head necrosis repair module by applying three-dimensional printing technology |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510582443.0A Pending CN105078619A (en) | 2015-06-26 | 2015-09-14 | Femoral prosthesis and using method |
| CN201510661290.9A Pending CN105125325A (en) | 2015-06-26 | 2015-10-14 | Manufacturing method for customizing femoral head necrosis repair module by applying three-dimensional printing technology |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN104887353A (en) |
| WO (1) | WO2016206500A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016206500A1 (en) * | 2015-06-26 | 2016-12-29 | 北京市春立正达医疗机械股份有限公司 | 3d printed custom module capable of treating osteonecrosis of hip and manufacturing method thereof |
| CN110680562A (en) * | 2019-10-25 | 2020-01-14 | 上海交通大学医学院附属第九人民医院 | Bone defect repair support, construction method, preparation method, computer-readable storage medium and equipment |
| CN116602797A (en) * | 2023-07-21 | 2023-08-18 | 上海大博医疗科技有限公司 | Conical self-locking partial femoral head replacement device capable of customizing reserved femoral head in personalized manner |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280816B (en) * | 2016-03-31 | 2020-10-13 | 重庆润泽医药有限公司 | Patellar implant |
| CN106827500A (en) * | 2017-01-19 | 2017-06-13 | 西安交通大学 | A kind of skull bone substitute multiple degrees of freedom 3D printing method |
| CN109106481B (en) * | 2018-09-18 | 2021-04-30 | 北京爱康宜诚医疗器材有限公司 | Method and device for determining acetabular bone defect degree |
| CN111166532B (en) * | 2019-12-30 | 2022-03-01 | 武汉联影智融医疗科技有限公司 | Artificial joint and preparation method thereof |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4608055A (en) * | 1984-01-12 | 1986-08-26 | Mayo Foundation | Femoral component for hip prosthesis |
| EP0932379A4 (en) * | 1996-08-21 | 2006-06-21 | Ind Res Ltd | A joint replacement prosthesis |
| US20020072805A1 (en) * | 1996-08-21 | 2002-06-13 | Sullivan John Martin Patrick | Joint replacement prosthesis |
| US7857859B2 (en) * | 2007-06-13 | 2010-12-28 | Zimmer, Gmbh | Femur component for a hip joint prosthesis |
| CN101342100B (en) * | 2008-08-25 | 2010-10-13 | 中国人民解放军第二○八医院 | Inner support false body of femoral head |
| RU2014101264A (en) * | 2011-07-20 | 2015-08-27 | Смит Энд Нефью, Инк. | SYSTEMS AND METHODS OF OPTIMIZATION OF IMPLANT SELECTION ACCORDING TO ANATOMIC CHARACTERISTICS |
| EP2789308B1 (en) * | 2013-04-12 | 2018-01-31 | CADFEM GmbH | Computer-implemented technique for generating a data set that geometrically defines a bone cut configuration |
| CN103598935A (en) * | 2013-11-08 | 2014-02-26 | 深圳先进技术研究院 | Patella prosthesis structure |
| CN203749648U (en) * | 2014-03-20 | 2014-08-06 | 郭万首 | Prosthesis for partial femoral head replacement |
| CN103919631B (en) * | 2014-04-28 | 2016-01-20 | 四川大学 | A kind of preparation method of jaw defect individualized therapy body |
| CN104462636B (en) * | 2014-09-30 | 2017-06-23 | 西安科技大学 | The modeling method of the necrotic femoral head repairing model based on umbrella supporter for femur head |
| CN104473705A (en) * | 2014-12-03 | 2015-04-01 | 卢清君 | Head maxillofacial bone implant and method for quickly molding same |
| CN104523354B (en) * | 2015-01-27 | 2017-04-12 | 北京市春立正达医疗器械股份有限公司 | Method for manufacturing orthopedic implant based on 3D printing technology |
| CN104887353A (en) * | 2015-06-26 | 2015-09-09 | 北京市春立正达医疗器械股份有限公司 | Femoral head prosthesis |
-
2015
- 2015-06-26 CN CN201510364220.7A patent/CN104887353A/en active Pending
- 2015-09-14 CN CN201510582443.0A patent/CN105078619A/en active Pending
- 2015-10-14 CN CN201510661290.9A patent/CN105125325A/en active Pending
-
2016
- 2016-05-16 WO PCT/CN2016/082209 patent/WO2016206500A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016206500A1 (en) * | 2015-06-26 | 2016-12-29 | 北京市春立正达医疗机械股份有限公司 | 3d printed custom module capable of treating osteonecrosis of hip and manufacturing method thereof |
| CN110680562A (en) * | 2019-10-25 | 2020-01-14 | 上海交通大学医学院附属第九人民医院 | Bone defect repair support, construction method, preparation method, computer-readable storage medium and equipment |
| CN110680562B (en) * | 2019-10-25 | 2023-12-15 | 上海交通大学医学院附属第九人民医院 | Bone defect repair stent, construction method, preparation method, computer readable storage medium and equipment |
| CN116602797A (en) * | 2023-07-21 | 2023-08-18 | 上海大博医疗科技有限公司 | Conical self-locking partial femoral head replacement device capable of customizing reserved femoral head in personalized manner |
| CN116602797B (en) * | 2023-07-21 | 2023-11-14 | 上海大博医疗科技有限公司 | Conical self-locking partial femoral head replacement device capable of customizing reserved femoral head in personalized manner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016206500A1 (en) | 2016-12-29 |
| CN105125325A (en) | 2015-12-09 |
| CN105078619A (en) | 2015-11-25 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150909 |