CN201208317Y - Double acting head structure in artificial hip joint system - Google Patents
Double acting head structure in artificial hip joint system Download PDFInfo
- Publication number
- CN201208317Y CN201208317Y CN 200820033211 CN200820033211U CN201208317Y CN 201208317 Y CN201208317 Y CN 201208317Y CN 200820033211 CN200820033211 CN 200820033211 CN 200820033211 U CN200820033211 U CN 200820033211U CN 201208317 Y CN201208317 Y CN 201208317Y
- Authority
- CN
- China
- Prior art keywords
- outer cup
- straight section
- inner lining
- liner
- hip joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The utility model relates to the field of orthopedic medical instruments, in particular to a double-acting head structure in an artificial hip joint system, which comprises an outer cup and an inner lining mounted in the outer cup. The lower part of the inner wall of the outer cup is an upwards-folded outer cup tapered straight section, and the lower part of the inner lining is an inner lining tapered straight section in self-locking conjunction with the taper of the outer cup tapered straight section. An annular concavity and an annular convexity for realizing interlocking by embedding the annular concavity are respectively formed on the outer cup tapered straight section on the outer cup and the inner lining tapered straight section on the inner lining. The rotation between the inner lining and the outer cup is prevented by using the self-locking conjunction between the outer cup tapered straight section and the inner lining tapered straight section, and the firm locking between the inner lining and the outer cup is realized through the annular concavity and the annular convexity between the inner lining and the outer cup; through the combined action of the two structures, fine motion of the inner lining in the outer cup is effectively prevented, the service life of the double-acting head is effectively improved, and the treatment effect of artificial hip joint operations is guaranteed.
Description
Technical field
This utility model relates to the orthopedic medical device field, the double motion head structure in the particularly a kind of artificial hip joint system.
Background technology
Modern artificial hip joint technology is that a universally acknowledged artificial material uses the most successful surgical technic in human body.Diseases such as orthopaedics using artificial hip joint treatment hip joint damage at present,, femur head necrosis are very universal.Using artificial hip joint technology is that the multiple hip joint disease of treatment pathological changes in whole latter stage is the most general and effective method not only can be corrected deformity of hip joint, eliminate pain, recovery hip joint function, and improve greatly patient's quality of life.
The partial hip joint displacement is only replaced the femur side.For fracture of femoral neck disunion patient, particularly suitable.Partial hip joint has two kinds of forms again: monopolar type and bipolar system.Because the design concept of bipolar system half artificial hip joint is peculiar, on the evolution history of artificial hip joint, occupy an important position, its purpose is exactly the friction that reduces between script monopolar type femur bulb and acetabular bone, to prolong the service life of artificial hip joint.
The design of bipolar system femoral head is varied, and clinical have bipolar project organization unreasonable, causes failures such as dislocation of hip joint.
The utility model content
Unreasonable in order to overcome bipolar above-mentioned project organization, the defective that causes dislocation of hip joint, this utility model provides a kind of can prevent the liner interior fine motion of cup outside effectively, effectively raise the double motion head structure in the artificial hip joint system in life-span of double motion head, the technical scheme that this utility model adopted is: the double motion head structure in a kind of artificial hip joint system, comprise outer cup and the liner that is installed in the outer cup, the outer cup-and-cone degree straight section of bottom for upwards drawing in of outer cup inwall, the bottom of liner is a liner tapering straight section that cooperates with the self-locking of outer cup-and-cone degree straight section tapering.
Concrete, prevent that the structure that liner is deviate from the outer cup from being, ring-shaped depression is set respectively on outer cup-and-cone degree straight section on cup and the liner and the liner tapering straight section outside and realizes the annular protrusion that locks each other by embedding ring-shaped depression.
Can put into liner easily in order to make liner, in liner tapering straight section upper edge cannelure is set, in the bottom of liner tapering straight section notch is set, the notch of cannelure and liner bottom makes liner tapering straight section have elasticity, thereby make things convenient for the installation of bulb, also make things convenient for simultaneously liner to pack in the outer cup.
The beneficial effects of the utility model are: utilize the self-locking between outer cup-and-cone degree straight section and the liner tapering straight section to cooperate the rotation that prevents between liner and the outer cup, realize the firmly sealed of liner and outer cup by ring-shaped depression between liner and the outer cup and annular protrusion simultaneously, prevented the liner interior fine motion of cup outside effectively by these two structures, effectively raise the life-span of double motion head, guaranteed the curative effect of artificial hip joint operation.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is this utility model configuration state sketch map.
Cutaway view when Fig. 2 is this utility model user mode.
Fig. 3 is an outer cup structure sketch map of the present utility model.
Fig. 4 is an inner lining structure sketch map of the present utility model.
Among the figure: 1. outer cup, 11. outer cup-and-cone degree straight sections, 2. liner, 21. liner tapering straight sections, 3. ring-shaped depression, 4. annular protrusion, 5. cannelure, 6. notch.
The specific embodiment
As illustrated in fig. 1 and 2, the double motion head structure in a kind of artificial hip joint system comprises outer cup 1 and is installed in liner 2 in the outer cup 1.As shown in Figure 3, the outer cup-and-cone degree straight section 11 of bottom for upwards drawing in of outer cup 1 inwall has a ring-shaped depression 3 in the middle of the cup-and-cone degree straight section 11 outside.According to clinical instructions for use, outer cup 1 design has plurality of specifications.
Liner 2, according to clinical instructions for use, design has plurality of specifications.As shown in Figure 4, a liner tapering straight section 21 is arranged at liner 2 bottoms, and this liner tapering straight section 21 matches with outer cup-and-cone degree straight section 11 and realizes the tapering self-locking.One annular projection 4 is arranged in the middle of the liner tapering straight section 11, and this annular projection 4 is corresponding with the ring-shaped depression 3 on the outer cup 1, realizes liners 2 and the locking each other of outer cup 1 by embedding ring-shaped depression 3, prevents that liner 2 from deviating from outer glass 1.Can pack outer glass 1 easily in order to make liner 2, simultaneously also bulb can be installed easily, in liner tapering straight section 21 upper edges cannelure 5 is set, in the bottom of liner tapering straight section 21 notch 6 is set, the notch 6 of cannelure 5 and liner 2 bottoms makes liner tapering straight section 21 have elasticity.
The mutually outer cup-and-cone degree straight section 11 and the liner tapering straight section 12 that cooperate of self-locking, and ring-shaped depression 3 and annular protrusion 4 be key Design of the present utility model, and anti-revolve, prevents withdrawing from and anti-loosening structure common the composition.
Claims (3)
1, the double motion head structure in a kind of artificial hip joint system, comprise outer cup (1) and be installed in the interior liner (2) of outer cup (1), it is characterized in that: the outer cup-and-cone degree straight section (11) of bottom for upwards drawing in of described outer cup (1) inwall, the bottom of described liner (2) is a liner tapering straight section (21) that cooperates with outer cup-and-cone degree straight section (11) tapering self-locking.
2, the double motion head structure in the artificial hip joint according to claim 1 system is characterized in that: ring-shaped depression (3) is set and by embedding the annular protrusion (4) that ring-shaped depression (3) realization locks each other on outer cup-and-cone degree straight section (11) outside described on cup (1) and the liner (2) and the liner tapering straight section (21) respectively.
3, the double motion head structure in the artificial hip joint according to claim 1 system is characterized in that: in the upper edge of described liner tapering straight section (21) cannelure (5) is set, in the bottom of liner tapering straight section (21) notch (6) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820033211 CN201208317Y (en) | 2008-03-17 | 2008-03-17 | Double acting head structure in artificial hip joint system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820033211 CN201208317Y (en) | 2008-03-17 | 2008-03-17 | Double acting head structure in artificial hip joint system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201208317Y true CN201208317Y (en) | 2009-03-18 |
Family
ID=40479041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820033211 Expired - Fee Related CN201208317Y (en) | 2008-03-17 | 2008-03-17 | Double acting head structure in artificial hip joint system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201208317Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505306A (en) * | 2012-06-21 | 2014-01-15 | 德普伊新特斯产品有限责任公司 | Constrained mobile bearing hip assembly |
| CN105496537A (en) * | 2015-12-31 | 2016-04-20 | 林列 | Internal fixation steel plate for sternoclavicular joint |
| CN107261212A (en) * | 2017-02-28 | 2017-10-20 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN109481093A (en) * | 2018-12-17 | 2019-03-19 | 北京安颂科技有限公司 | Manual acetabulum prosthese and its installation method |
-
2008
- 2008-03-17 CN CN 200820033211 patent/CN201208317Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505306A (en) * | 2012-06-21 | 2014-01-15 | 德普伊新特斯产品有限责任公司 | Constrained mobile bearing hip assembly |
| CN103505306B (en) * | 2012-06-21 | 2016-12-28 | 德普伊新特斯产品有限责任公司 | Affined portable support hip assembly |
| US10314711B2 (en) | 2012-06-21 | 2019-06-11 | DePuy Synthes Products, Inc. | Constrained mobile bearing hip assembly and method |
| US11076960B2 (en) | 2012-06-21 | 2021-08-03 | DePuy Synthes Products, Inc. | Constrained mobile bearing hip assembly and method |
| CN105496537A (en) * | 2015-12-31 | 2016-04-20 | 林列 | Internal fixation steel plate for sternoclavicular joint |
| CN107261212A (en) * | 2017-02-28 | 2017-10-20 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN109481093A (en) * | 2018-12-17 | 2019-03-19 | 北京安颂科技有限公司 | Manual acetabulum prosthese and its installation method |
| CN109481093B (en) * | 2018-12-17 | 2024-04-19 | 北京安颂科技有限公司 | Artificial acetabulum prosthesis and method of installing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20160317 |