CN201668540U - Biological fixed double-equator anti-dislocation acetabulum prosthesis - Google Patents
Biological fixed double-equator anti-dislocation acetabulum prosthesis Download PDFInfo
- Publication number
- CN201668540U CN201668540U CN 201020163021 CN201020163021U CN201668540U CN 201668540 U CN201668540 U CN 201668540U CN 201020163021 CN201020163021 CN 201020163021 CN 201020163021 U CN201020163021 U CN 201020163021U CN 201668540 U CN201668540 U CN 201668540U
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- China
- Prior art keywords
- acetabular
- acetabular cup
- cup
- acetabulum
- spherical surface
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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
- A61F2/34—Acetabular cups
-
- 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)
Abstract
The utility model belongs to the medical instrument technique field, relates to a biological fixed double-equator anti-dislocation acetabulum prosthesis for replacing the hip joint. The acetabulum prosthesis is composed of a acetabular cup and a inner lining of the acetabulum, wherein the sphere center of the internal spherical surface of the acetabulum inner lining is arranged at 1-4mm away from the sphere center of the external spherical surface of the acetabular cup in the direction to the pole of the external spherical surface of the acetabular cup, the maximum diameter of the internal surface does not coincide with that of the external spherical surface, the internal spherical surface of the acetabulum inner lining and the external spherical surface of the acetabular cup form double equators, the anti-dislocation angle between the equatorial plane of the external spherical surface of the acetabular cup at the side of the acetabulum prosthesis opening and the equatorial plane of the internal spherical surface of the acetabulum inner lining is equal to or more than 10 degree; the other side of the acetabulum prosthesis opening of the acetabulum inner lining is cut a bevel, and has smooth transition with the acetabulum prosthesis opening, and the external surface of the acetabular cup to the acetabulum prosthesis opening has crest. The acetabulum prosthesis has a double equator structure, a plurality of crests are arranged on the external surface of the acetabular cup, which strengthens the installing stability of th eacetabulum prosthesis.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of biological fixation type anti-dislocation in two equator acetabular component that is used for hip replacement.
Background technology
The acetabular component of present clinical use is divided into two classes according to fixed form, and a class is to fix by bone cement and bone, is called bone cement fixed pattern prosthese; Another kind of is directly to contact with bone to fix, and is also referred to as biological fixation type prosthese.At present, the acetabular component that uses in clinical practice all has an anti-inclined-plane of dislocating.The Internal Spherical Surface of acetabular bone and the centre of sphere of spherical outside surface overlap.Internal Spherical Surface is being done the major diameter place to mortar mouth straight-line extension, and to play the effect of anti-dislocation, the angle of anti-dislocation is 10 °, and anti-dislocation mortar equals radius to the encirclement of bulb.For biological fixation type acetabular component, generally form by metal acetabular cup+plastics acetabular bone liner.Fit system between the two comprises taper fit, snap ring cooperation or groove fit etc.The thing fixed pattern acetabular component of this kind structure, inconvenient operation, interaction have relatively high expectations or acetabular bone in be lined with the possibility that rotates, operation technique, postoperative use have been caused certain risk, very easily cause the late period of mortar cup loosening, dislocate, after the dislocation of mortar cup, its upper limb protuberance is beyond osseous tissue, hinder the sticking nature of soft tissue and osseous tissue, form " dead space ", hematocele causes post-operative complication such as infection easily.
Summary of the invention
The purpose of this utility model is to propose a kind of biological fixation type anti-dislocation in two equator acetabular component easy and simple to handle, that interaction is good.Technical solution of the present utility model is, acetabular component is made up of acetabular cup and acetabular bone liner, adopt taper fit between acetabular cup and the acetabular bone liner, the tapering angle is 5～15 °, height of conical surface 5～15mm, at the close 1～10mm place, mortar oral area position of the male cone (strobilus masculinus) of acetabular bone liner, the high flange of design 0.5～1.5mm is with the dark groove of inner conical surface design 0.5～1.5mm of acetabular cup; The centre of sphere of the Internal Spherical Surface of acetabular bone liner is arranged on the centre of sphere of spherical outside surface of acetabular cup to limit direction displacement 1～4mm place of the spherical outside surface of acetabular cup, the maximum gauge of Internal Spherical Surface does not overlap with the maximum gauge of spherical outside surface, the Internal Spherical Surface of acetabular bone liner and the spherical outside surface of acetabular cup form " two equator ", the Internal Spherical Surface of acetabular bone liner is extended naturally, anticreep parallactic angle 〉=10 that the equatoriat plane of the equatoriat plane of the spherical outside surface of the acetabular cup of a side of acetabular component mouth and the Internal Spherical Surface of acetabular bone liner forms °; It is 90 °～120 ° that the opposite side of the acetabular component mouth of acetabular bone liner cuts out span, and the angle of inclination is 5 °～20 ° inclined-plane, and with acetabular component mouth rounding off; The outer surface of acetabular cup is provided with the spinous process that exceeds spherical outside surface 0.1～1mm apart from acetabular component mouth 2～15mm place; The end face of acetabular cup is provided with the stria with acetabular bone liner mated position labelling, opens screw hole on the acetabular cup.
On the end face of the acetabular component mouth of acetabular bone liner diameter 2mm is arranged, the hole of dark 2～5mm.
Advantage that the utlity model has and beneficial effect, this utility model adopts the structure in two equator, to the encirclement size of bulb greater than its radius, the surface of the two rotation that matches is strengthened, in the part of easily dislocating still is that sphere cooperates, therefore angle [alpha] 〉=10 of anti-dislocation ° can play preventing that bulb from deviating from the effect of acetabular bone better.The acetabular cup outer surface of this utility model acetabular component has also designed several spinous process, be installed to the acetabular bone position after, form barb, be stuck in the osseous tissue, prevent that acetabular cup from deviating from from osseous tissue, strengthened the installation stability of acetabular component.Simultaneously, designed several screw holes on the acetabular cup of this utility model acetabular component, can match respective screws and fix strengthening.In the close mortar oral area position of the male cone (strobilus masculinus) of acetabular bone liner, this utility model has designed the flange with the groove fit of the inner conical surface of acetabular cup, make the fastening locking in acetabular cup of acetabular bone liner, be difficult for deviating from, and prevent that the acetabular bone liner from rotating in acetabular cup, influence normal activity point of view of femoral stem and scope, finally influence the performance of hip prosthesis function.Hole on this utility model acetabular component mortar mouth end face is used for the clinical operation process and matches with operating theater instruments is installed, and controlling acetabular bone, and is installed to human body acetabular bone position.The spherical outside surface diameter of the acetabular component that this utility model relates to can design according to patient's build is different, and the Internal Spherical Surface diameter can be according to the diameter design of bulb with matching.
Description of drawings
Fig. 1 is the longitudinal section of metal cup of the present utility model;
Fig. 2 is the bottom view of metal cup;
Fig. 3 is the longitudinal section of liner of the present utility model;
Fig. 4 is the bottom view of liner;
Fig. 5 is the axonometric chart after metal cup of the present utility model and the liner assembling;
Fig. 6 is the bottom view after metal cup and the liner assembling;
Fig. 7 is this utility model user mode sketch map.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is elaborated.Acetabular component is made up of acetabular cup 1 and acetabular bone liner 2, adopt taper fit between acetabular cup 1 and the acetabular bone liner 2, the tapering angle beta is 5～15 °, height of conical surface 5～15mm, at the close 1～10mm place, mortar oral area position of the male cone (strobilus masculinus) of acetabular bone liner 2, the high flange 6 of design 0.5～1.5mm is with the dark groove 7 of inner conical surface design 0.5～1.5mm of acetabular cup 1; The centre of sphere 4 of the Internal Spherical Surface of acetabular bone liner 2 is arranged on the centre of sphere 3 of spherical outside surface of acetabular cup 1 to limit 5 direction displacements 1～4mm place of the spherical outside surface of acetabular cup 1, the maximum gauge of Internal Spherical Surface does not overlap with the maximum gauge of spherical outside surface, the spherical outside surface of the Internal Spherical Surface of acetabular bone liner 2 and acetabular cup 1 forms " two equator ", the Internal Spherical Surface of acetabular bone liner 2 is extended naturally, the anticreep parallactic angle α that the equatoriat plane of the equatoriat plane of the spherical outside surface of the acetabular cup 1 of a side of acetabular component mouth and the Internal Spherical Surface of acetabular bone liner 2 forms 〉=10 °; It is 90 °～120 ° that the opposite side of the acetabular component mouth of acetabular bone liner 2 cuts out span γ, and angle of inclination δ is 5 °～20 ° inclined-plane, and with acetabular component mouth rounding off; The outer surface of acetabular cup 1 is provided with the spinous process 8 that exceeds spherical outside surface 0.1～1mm apart from acetabular component mouth 2～15mm place; The end face of acetabular cup 1 is provided with the stria 10 with acetabular bone liner 2 mated position labellings 11, opens screw hole 9 on the acetabular cup 1.On the end face of the acetabular component mouth of acetabular bone liner 2 diameter 2mm is arranged, the hole 12 of dark 2～5mm.
The Internal Spherical Surface centre of sphere 4 of acetabular bone liner 2 does not overlap with the centre of sphere 3 of acetabular cup 1 spherical outside surface to limit 5 skews, and Internal Spherical Surface forms " the two equator " that does not overlap with the maximum gauge of spherical outside surface.Internal Spherical Surface is extended naturally, and greater than its radius, surface of the two rotation that matches is strengthened to the encirclement size of bulb, in easy dislocation part still for sphere cooperates, angle [alpha] 〉=10 of anti-dislocation °, so can play better and prevent that bulb from deviating from the effect of acetabular bone.Cut out simultaneously span γ at the mortar mouth place of acetabular bone liner 2 and be 90 °～120 °, angle of inclination δ is 5 °～20 ° inclined-plane, and with mortar mouth rounding off.After femoral stem is installed bulb and acetabular component is cooperated,, can increase the range of activity of femoral stem, referring to Fig. 7 by bulb forwarding to when guaranteeing anti-dislocation effect in acetabular component.
In order to improve the bond strength between acetabular component and the bone, following processing can be done in the metal acetabular cup surface of this utility model acetabular component: 1) metal acetabular cup outer surface is done roughening and handled, to increase the area that contacts with bone, osteocyte can be in the rough surface growth of creeping, thus increase and bone between bond strength; 2) utilize sintering process, form cobalt alloy spherical powder (granule) porous surface on cobalt alloy acetabular cup surface, or on the titanium alloy acetabular cup surface pure titanium of formation or titanium alloy spherical powder (granule) or fiber multihole surface, the aperture of this porous surface is more than 30 microns, and hole is a three-dimensional UNICOM hole, allow osseous tissue in hole, to grow, thereby form sealedly, can increase substantially bond strength with osseous tissue; 3) at pure titanium of acetabular cup surface spraying or titanium alloy powder, this technology has also formed porous surface, increases bond strength by the bonded area that strengthens with osseous tissue; 4) prepare hydroxyapatite coating layer at the acetabular cup outer surface, utilize the biological activity of hydroxyapatite coating layer, inducting osseous tissue forms chemical bonding in superficial growth and with coating in early days in postoperative, thereby improves bond strength; 5) at cobalt alloy or titanium alloy porous surface refabrication hydroxyapatite coating layer, utilize the effect of two kinds of surface layers simultaneously, promote that the early growth of osteocyte and formation are sealed, further improve bond strength.
Except porous and coating structure by outer surface improve the bond strength, acetabular cup 1 outer surface of this utility model acetabular component has also designed several spinous process 8, after being installed to the acetabular bone position, form barb, be stuck in the osseous tissue, preventing that acetabular cup from deviating from from osseous tissue, also is to strengthen one of its measure that stability is installed.Simultaneously, designed several screw holes 9 on the acetabular cup 1 of this utility model acetabular component, can match respective screws and fix strengthening.
Adopted taper fit between acetabular cup 1 and the acetabular bone liner 2, the tapering angle beta is 5～15 °, height of conical surface 5～15mm.Simultaneously, at the close 1～10mm place, mortar oral area position of the male cone (strobilus masculinus) of acetabular bone liner 2, the high flange 6 of design 0.5～1.5mm, with the dark groove 7 of inner conical surface design 0.5～1.5mm of acetabular cup 1, flange is stuck in the groove after cooperation.Conical surface compression fit and flange-rabbeted lock tight fit, make acetabular bone liner 2 fastening locking in acetabular cup 1, be difficult for deviating from, and prevent that acetabular bone liner 2 from rotating in acetabular cup 1, influence normal activity point of view of femoral stem and scope, finally influence the performance of hip prosthesis function.
It is 2mm that the aperture is arranged on the mortar mouth of the acetabular bone liner 2 of this utility model acetabular component, and the degree of depth is the hole 12 of 2～5mm, is used for the clinical operation process and matches with operating theater instruments is installed, and controlling acetabular bone, and is installed to human body acetabular bone position.
During installation, stria labelling 10 is arranged on the acetabular cup 1, making progress laterally of acetabular bone that this labelling corresponds to also has corresponding labelling 11 on the acetabular bone liner 2 simultaneously, helps operative doctor to judge and assembly, smoothly acetabular component is mounted to the acetabular bone position.
Claims (2)
1. the dislocation acetabular component is prevented in the two equator of biological fixation type, it is characterized in that, acetabular component is made up of acetabular cup (1) and acetabular bone liner (2), adopt taper fit between acetabular cup (1) and the acetabular bone liner (2), tapering angle (β) is 5～15 °, and height of conical surface 5～15mm is at the close 1～10mm place, mortar oral area position of the male cone (strobilus masculinus) of acetabular bone liner (2), the high flange (6) of design 0.5～1.5mm is with the dark groove (7) of inner conical surface design 0.5～1.5mm of acetabular cup (1); The centre of sphere (4) of the Internal Spherical Surface of acetabular bone liner (2) is arranged on the centre of sphere (3) of spherical outside surface of acetabular cup (1) to limit (5) direction displacement 1～4mm place of the spherical outside surface of acetabular cup (1), the maximum gauge of Internal Spherical Surface does not overlap with the maximum gauge of spherical outside surface, the spherical outside surface of the Internal Spherical Surface of acetabular bone liner (2) and acetabular cup (1) forms " two equator ", the Internal Spherical Surface of acetabular bone liner (2) is extended naturally, the anticreep parallactic angle (α) 〉=10 that the equatoriat plane of the equatoriat plane of the spherical outside surface of the acetabular cup (1) of a side of acetabular component mouth and the Internal Spherical Surface of acetabular bone liner (2) forms °; It is 90 °～120 ° that the opposite side of the acetabular component mouth of acetabular bone liner (2) cuts out span (γ), and angle of inclination (δ) is 5 °～20 ° inclined-plane, and with acetabular component mouth rounding off; The outer surface of acetabular cup (1) is provided with the spinous process (8) that exceeds spherical outside surface 0.1～1mm apart from acetabular component mouth 2～15mm place; The end face of acetabular cup (1) is provided with the stria (10) with acetabular bone liner (2) mated position labelling (11), opens screw hole (9) on the acetabular cup (1).
2. the biological fixation type according to claim 1 anti-dislocation in two equator acetabular component is characterized in that on the end face of the acetabular component mouth of acetabular bone liner (2) diameter 2mm being arranged, the hole of dark 2～5mm (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020163021 CN201668540U (en) | 2010-04-20 | 2010-04-20 | Biological fixed double-equator anti-dislocation acetabulum prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020163021 CN201668540U (en) | 2010-04-20 | 2010-04-20 | Biological fixed double-equator anti-dislocation acetabulum prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201668540U true CN201668540U (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020163021 Expired - Lifetime CN201668540U (en) | 2010-04-20 | 2010-04-20 | Biological fixed double-equator anti-dislocation acetabulum prosthesis |
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| CN (1) | CN201668540U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137467A (en) * | 2016-08-17 | 2016-11-23 | 优适医疗科技（苏州）有限公司 | A kind of acetabular cup for artificial hip joint |
| CN106137468A (en) * | 2016-07-28 | 2016-11-23 | 北京力达康科技有限公司 | A kind of biological fixation type acetabular component of angle adjustable |
| CN107638232A (en) * | 2016-07-22 | 2018-01-30 | 高宗炎 | Acetabular component |
| CN107736955A (en) * | 2017-11-16 | 2018-02-27 | 天津正天医疗器械有限公司 | Bone grafting merges steady type artificial hip joint acetabular cup |
| CN107809983A (en) * | 2015-06-30 | 2018-03-16 | 乔希控股股份公司 | Implant and the method for coating implants main body |
| CN108836577A (en) * | 2018-07-24 | 2018-11-20 | 北京安颂科技有限公司 | Acetabular component and artificial hip joint |
| CN109464225A (en) * | 2017-09-08 | 2019-03-15 | 苏州玄陶商务咨询有限公司 | A kind of silicon nitride ceramics artificial hip joint |
| CN110833471A (en) * | 2019-11-26 | 2020-02-25 | 北京安颂科技有限公司 | Acetabulum prosthesis and artificial hip joint prosthesis |
| CN112998912A (en) * | 2021-03-12 | 2021-06-22 | 浙江大学医学院附属第一医院 | 3D printing acetabular cup prosthesis for artificial hip joint replacement surgery |
-
2010
- 2010-04-20 CN CN 201020163021 patent/CN201668540U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809983A (en) * | 2015-06-30 | 2018-03-16 | 乔希控股股份公司 | Implant and the method for coating implants main body |
| CN107638232A (en) * | 2016-07-22 | 2018-01-30 | 高宗炎 | Acetabular component |
| CN106137468A (en) * | 2016-07-28 | 2016-11-23 | 北京力达康科技有限公司 | A kind of biological fixation type acetabular component of angle adjustable |
| CN106137467A (en) * | 2016-08-17 | 2016-11-23 | 优适医疗科技（苏州）有限公司 | A kind of acetabular cup for artificial hip joint |
| CN109464225A (en) * | 2017-09-08 | 2019-03-15 | 苏州玄陶商务咨询有限公司 | A kind of silicon nitride ceramics artificial hip joint |
| CN107736955A (en) * | 2017-11-16 | 2018-02-27 | 天津正天医疗器械有限公司 | Bone grafting merges steady type artificial hip joint acetabular cup |
| CN108836577A (en) * | 2018-07-24 | 2018-11-20 | 北京安颂科技有限公司 | Acetabular component and artificial hip joint |
| CN108836577B (en) * | 2018-07-24 | 2024-01-09 | 北京安颂科技有限公司 | Acetabular prosthesis and artificial hip joint |
| CN110833471A (en) * | 2019-11-26 | 2020-02-25 | 北京安颂科技有限公司 | Acetabulum prosthesis and artificial hip joint prosthesis |
| CN112998912A (en) * | 2021-03-12 | 2021-06-22 | 浙江大学医学院附属第一医院 | 3D printing acetabular cup prosthesis for artificial hip joint replacement surgery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING YOUCAI JINGHANG BIOLOGICAL TECHNOLOGY CO., Free format text: FORMER OWNER: BEIJING BAIMU AERONAUTIC MATERIAL HIGH-TECHNOLOGY CO., LTD. Effective date: 20150114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100095 HAIDIAN, BEIJING TO: 100000 HAIDIAN, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150114 Address after: 100000 Beijing city Haidian District Yongxiang Road No. 5 Building 1 layer 203, 204 room 2 Patentee after: BEIJING JINGHANG BIOTECH CO., LTD. Address before: 100095 box 63, box 81, Beijing Patentee before: Beijing Baimu Aeronautic Material High-Technology Co., Ltd. Effective date of registration: 20150114 Address after: 100000 Beijing city Haidian District Yongxiang Road No. 5 Building 1 layer 203, 204 room 2 Patentee after: BEIJING JINGHANG BIOTECH CO., LTD. Address before: 100095 box 63, box 81, Beijing Patentee before: Beijing Baimu Aeronautic Material High-Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |
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| CX01 | Expiry of patent term |