CN1032115C - Length and anteverted angle-adjustable upper segment prosthesis of femur - Google Patents
Length and anteverted angle-adjustable upper segment prosthesis of femur Download PDFInfo
- Publication number
- CN1032115C CN1032115C CN 92103171 CN92103171A CN1032115C CN 1032115 C CN1032115 C CN 1032115C CN 92103171 CN92103171 CN 92103171 CN 92103171 A CN92103171 A CN 92103171A CN 1032115 C CN1032115 C CN 1032115C
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- CN
- China
- Prior art keywords
- length
- femur
- cylinder
- present
- ellipse
- 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
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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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- 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 present invention relates to a femur upper segment prosthesis which belongs to a surgical implantation artificial prosthesis. The present invention is composed of a head neck part 1, an adjusting part 2, a length adjusting device 3 and a femur handle 4. The present invention is characterized in that the head neck part 1 and the adjusting part 2 are engaged by concave-convex surface teeth, the head neck part 1 and the adjusting part 2 are the connection of the tight match of a cylindrical cavity and a cylindrical body, and the adjusting part 2, the length adjusting device 3, and the femur handle 4 are the connection of the tight match of an elliptic cylindrical cavity and an elliptic cylindrical body. The present invention has the advantages of adjustable front rake and length, and high stability, and is the ideal femur upper segment prosthesis at present.
Description
The invention belongs to surgery and plant the artificial prosthese of people.
Need manually plant the pathological changes of femur upper segment when changing at present, generally be divided into femoral head and plant to change to plant and change with femur upper segment.Capital planting changed the existing history for many years of operation, and material and technology are all ripe, and unique problem that retains is the grasp to top rake, and the method that addresses this problem at present has two kinds; One is to use the femoral head prosthesis of not being with top rake, revolve before slight during operation, but this method is difficult for grasping; Two be to use the band top rake femoral head prosthesis, about can not exchange, must be noted that axial angle during operation.What the planting of femur upper segment prosthese changed employing is the fixed prosthese of length, and the alternative length of the length of required amputation in most cases and prosthese is inconsistent, can't be according to the length of concrete pathological changes decision institute amputation bone section.
The femur upper segment prosthese is planted when changing operation, top rake is difficult to grasp exactly (artificial thigh bone plant change art also have this problem) and can not determines that amputation bone segment length is two in esse problems with diseased region, top rake is too small, internal rotation of hip joint, " the interior Eight characters " gait appears, otherwise, external rotation of the hip joint, " the outer Eight characters " gait occurs, and be prone to hip dislocation.These two kinds of results all can influence surgical effect.
The purpose of this invention is to provide a kind of length and anteverted angle-adjustable upper segment prosthesis of femur, it can be determined top rake exactly and can determine the osteotomy position according to the operative treatment needs.
The present invention is by incidence, adjusting portion, and length adjustment device and femoral stem are formed, and on the medial surface of incidence outer lower end projection the concave surface tooth is arranged, and there is a cylinder chamber at the middle part; The outside, upper end of adjusting portion has half garden convex surface tooth, middle part that one cylinder that protrudes is arranged, and an ellipse garden cylinder chamber is arranged at the bottom; One ellipse Cylinder is arranged at femoral stem top, and the bottom is the prismatic cylinder; Recessed tooth on the incidence is meshed with the double wedge on the adjusting portion, and cylinder chamber connects with the cylinder close-fitting; Ellipse garden cylinder chamber between adjusting portion, length adjustment device, femoral stem connects with ellipse Cylinder close-fitting.
Below in conjunction with accompanying drawing the present invention is described in detail:
Fig. 1 is a structure chart of the present invention;
Fig. 2 is the structure chart of incidence;
Fig. 3 is the structure chart of adjusting portion;
Fig. 4 is the structure chart of femoral stem;
Fig. 5 is the structure chart of length adjustment device.
1 is incidence among Fig. 1; 2 is adjusting portion: 3 are length adjustment device; 4 is femoral stem.
5 is the garden cylinder chamber among Fig. 2; 6 is that A is to the concave surface tooth.
7 is Cylinder among Fig. 3; 8 is ellipse garden cylinder chamber; 9 is that A is to the convex surface tooth.
10 is ellipse Cylinder among Fig. 4; 11 is tri-prismoid.
12 is ellipse Cylinder among Fig. 5; 13 is ellipse garden cylinder chamber.
If will be with the required angle of incidence 1 rotation the time, earlier incidence 1 be extracted part vertically during operation, make that A A in concave surface tooth 6 and Fig. 2 removes engagement to convex surface tooth 9 among Fig. 1, pivot to required proper angle, resetting then makes its two teeth engages fixed.
Adjusting portion 2 of the present invention is to adopt ellipse garden cylinder chamber to connect with ellipse Cylinder close-fitting with cooperating of length adjustment device 3 and femoral stem 4, and this connection is than the connection good stability of general Cylinder and garden cylinder chamber.
Fig. 5 of the present invention is a length adjustment device, as the pathological changes proximal femur length of required amputation more in short-term, length adjustment device can be removed, and femoral stem is connected with the adjusting portion close-fitting, be the short status of this prosthese this moment, from short status during to long the adjusting, its method is: add the ellipse Cylinder of friction tight with it different length when regulating among a small circle in the cylinder chamber of the ellipse garden of adjusting portion, and then connect with shank; When regulating, add the length adjustment device (general gets final product) of different length size on a large scale, among the present invention all ellipse garden cylinder chamber and ellipse Cylinder all mutually close-fitting connect.
The structure that close-fitting connects between incidence and adjusting portion among the present invention can be applicable in the common artificial thigh bone, its method is for to be processed into incidence and shank two parts with common artificial thigh bone, have just like preceding described concave surface tooth in the outside of incidence, one convex surface tooth is arranged in the outside of shank, regulative mode is described identical with the front, and characteristics are faying face and incidence axis out of plumb of incidence and shank.
The present invention has top rake and adjustable length, and good stability is comparatively ideal at present femur upper segment prosthese.
Claims (1)
1, a kind of length and anteverted angle-adjustable upper segment prosthesis of femur, by incidence (1), adjusting portion (2), length adjustment device (3) and femoral stem (4) are formed, it is characterized in that incidence (1) outer lower end protrudes on the medial surface at position the concave surface tooth is arranged, and the middle part there is a cylinder chamber; The outside, upper end of adjusting portion (2) has semicircle convex surface tooth, middle part that one cylinder that protrudes is arranged; Its two tooth is engageable, and cylinder chamber connects with the cylinder close-fitting; One ellipse garden cylinder chamber is arranged at the bottom of adjusting portion (2), and an ellipse Cylinder is arranged at length adjustment device (3) top, and an ellipse garden cylinder chamber is arranged at the bottom, and an ellipse Cylinder is arranged at femoral stem (4) top, and close-fitting connects between ellipse garden cylinder chamber and ellipse Cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103171 CN1032115C (en) | 1992-04-24 | 1992-04-24 | Length and anteverted angle-adjustable upper segment prosthesis of femur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103171 CN1032115C (en) | 1992-04-24 | 1992-04-24 | Length and anteverted angle-adjustable upper segment prosthesis of femur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1077877A CN1077877A (en) | 1993-11-03 |
| CN1032115C true CN1032115C (en) | 1996-06-26 |
Family
ID=4940054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92103171 Expired - Fee Related CN1032115C (en) | 1992-04-24 | 1992-04-24 | Length and anteverted angle-adjustable upper segment prosthesis of femur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032115C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112021025423A2 (en) | 2019-07-03 | 2022-02-01 | Si Group Inc | Alkylphenol copolymer, paraffin inhibitor and asphaltene dispersant compositions, methods for modifying a petroleum source, for forming a monomer and for forming the alkylphenol copolymer, and, petroleum composition |
| CN110680566A (en) * | 2019-10-31 | 2020-01-14 | 北京爱康宜诚医疗器材有限公司 | Bone filling prosthesis |
| CN110840628A (en) * | 2019-12-02 | 2020-02-28 | 北京爱康宜诚医疗器材有限公司 | Hip joint prosthesis |
| CN111358598B (en) * | 2020-03-25 | 2023-06-23 | 北京市春立正达医疗器械股份有限公司 | Assembled personalized radius prosthesis |
-
1992
- 1992-04-24 CN CN 92103171 patent/CN1032115C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1077877A (en) | 1993-11-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RA01 | Restoration of patent right |
Former decision: deemed to have been withdrawn |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |