JPH0215118U - - Google Patents
Info
- Publication number
- JPH0215118U JPH0215118U JP9319588U JP9319588U JPH0215118U JP H0215118 U JPH0215118 U JP H0215118U JP 9319588 U JP9319588 U JP 9319588U JP 9319588 U JP9319588 U JP 9319588U JP H0215118 U JPH0215118 U JP H0215118U
- Authority
- JP
- Japan
- Prior art keywords
- femoral head
- relief groove
- utility
- model registration
- artificial femoral
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Prostheses (AREA)
Description
第１図は本案人工骨頭の縦断面図、第２図は仝
じくステムを挿着した縦断面図、第３図は底部が
平面の従来の骨頭の縦断面図、第４図は有底孔が
円錐形の従来例の断面図である。
１……人口骨頭、２……球面の一部をなす底部
、３……半円弧形逃げ溝、４……截頭円錐面、５
……卵形空間、６……接点、７……金属製ステム
、８……平面状底部、９……直角逃げ溝、１０…
…円錐状底部。
Figure 1 is a vertical cross-sectional view of the proposed artificial femoral head, Figure 2 is a vertical cross-sectional view with the stem inserted, Figure 3 is a vertical cross-sectional view of a conventional femoral head with a flat bottom, and Figure 4 is a vertical cross-sectional view of the conventional femoral head with a flat bottom. FIG. 2 is a cross-sectional view of a conventional example in which the hole is conical. 1...Artificial femoral head, 2...Bottom forming part of a spherical surface, 3...Semi-circular relief groove, 4...Truncated conical surface, 5
...Egg shaped space, 6... Contact, 7... Metal stem, 8... Planar bottom, 9... Right angle relief groove, 10...
...conical bottom.
Claims (1)
分割式人工骨頭において、該有底孔は開口部から
底部に向つて漸次径小となる截頭円錐面を具え、
球面の一部として形成された前記底部周縁に半円
弧型の曲面をリング状に接続して断面卵形空間に
よる加工用逃げ溝を形成するとともに前記逃げ溝
の下端縁を前記截頭円錐面頂部に接続した人工骨
頭。 (2) 骨頭はセラミツクから成る実用新案登録請
求の範囲第１項記載の人工骨頭。[Claims for Utility Model Registration] (1) In a split type artificial femoral head in which a stem is fitted into a bottomed hole on the lower side of the femoral head, the bottomed hole has a diameter that gradually decreases from the opening toward the bottom. Equipped with a conical head surface,
A semi-circular curved surface is connected in a ring shape to the periphery of the bottom formed as a part of the spherical surface to form a machining relief groove with an oval cross-sectional space, and the lower edge of the relief groove is connected to the top of the truncated conical surface. artificial femoral head connected to. (2) The artificial femoral head according to claim 1 of the utility model registration, wherein the femoral head is made of ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988093195U JPH065779Y2 (en) | 1988-07-14 | 1988-07-14 | Artificial head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988093195U JPH065779Y2 (en) | 1988-07-14 | 1988-07-14 | Artificial head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0215118U true JPH0215118U (en) | 1990-01-30 |
| JPH065779Y2 JPH065779Y2 (en) | 1994-02-16 |
Family
ID=31317643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988093195U Expired - Lifetime JPH065779Y2 (en) | 1988-07-14 | 1988-07-14 | Artificial head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065779Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349891A (en) * | 1976-10-14 | 1978-05-06 | Rosenthal Technik Ag | Joint and body internal artificial limb |
-
1988
- 1988-07-14 JP JP1988093195U patent/JPH065779Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349891A (en) * | 1976-10-14 | 1978-05-06 | Rosenthal Technik Ag | Joint and body internal artificial limb |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH065779Y2 (en) | 1994-02-16 |