Patent EP0128036A1 successfully refreshed from Google Patents.
EP0128036A1
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Femoral hip prosthesis
Assignee: Howmedica Osteonics Corp
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Filing: 1984-06-04
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Granted: —
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Expires: 2004-06-04
Abstract
Abstract A femoral hip prosthesis (10) comprises a stem component (12) generally divided into a proximal portion (22) and a substantially longer distal portion (26). The stem (12) has a slight posterior bow (28) along its length. The proximal portion (22) includes a slight twist of from about 5 to 15°, the twist extending in a direction from the anteriorto the posterior face of the stem (12) through the medial face thereof. The characteristics of the stem (12) provide a glove fit when inserted into a prepared intramedullary canal (18) in the femur (20).
Inventors
- 👤 Robert Vincent Kenna
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 14:01
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/36; A61F2/3662; A61F2/367; A61F2/30767; A61F2002/30001; A61F2002/30316; A61F2002/30317; A61F2002/30322; A61F2002/30769; A61F2002/3678; A61F2002/3698; A61F2250/00; A61F2250/0014; A61F2250/0026; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; A61F2310/00029
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
82 words
A femoral hip prosthesis (10) comprising a stem component (12) with an anterior face, a posterior face, a lateral face and a medial face and generally divided into a proximal portion (22) and a substantially longer distal portion (26), the stem (12) having a slight posterior bow (28) along its length and a twist of from about 5 to 15° in the proximal portion (22), the twist extending in a direction from the anterior to the posterior face through the medial face.
Claim 2
Dependent Claim
82 words
A femoral hip prosthesis (10) comprising a stem component (12) with an anterior face, a posterior face, a lateral face and a medial face and generally divided into a proximal portion (22) and a substantially longer distal portion (26), the stem (12) having a slight posterior bow (28) along its length and a twist of from about 5 to 15° in the proximal portion (22), the twist extending in a direction from the anterior to the posterior face through the medial face.
Claim 3
Dependent Claim
37 words
A femoral hip prosthesis (10) as in claim 1 -wherein the length of the distal portion (26) is from about 2 to 3 times the length of the proximal portion (22) as measured along the medial face.
Claim 4
Dependent Claim
25 words
A femoral hip prosthesis (10) as in claim 1 wherein the twist generally commences at the boundary of the distal (26) and proximal (22) portions.
Claim 5
Dependent Claim
22 words
A femoral hip prosthesis (10) as in claim 3 wherein the twist extends throughout the proximal portion (22) and is about 9°.
Claim 6
Dependent Claim
23 words
A femoral hip prosthesis (10) as in claim 1 wherein the exterior surface of the proximal portion (22) includes a porous coating (40).
Claim 7
Dependent Claim
42 words
A femoral hip prosthesis (10) as in claim 1 wherein the proximal portion (22) is generally equally divided into a proximal segment (32), a central segment (34) and a distal segment (36) with a lateral flare (38) on the distal segment (36).
Claim 8
Dependent Claim
39 words
A femoral hip prosthesis (10) as in claim 6 including a neck (14) extending from the proximal segment (32), the neck (14) having an axis at an angle of about 45° to the general orientation of the stem (12).
Claim 9
Dependent Claim
24 words
A femoral hip prosthesis (10) as in claim 7 wherein the neck (14) is anteverted at an angle of from about 5 to 15°.
Claim 10
Dependent Claim
18 words
A femoral hip prosthesis (10) as in claim 8 including a capitulum (16) secured to the neck (14).
Claim 11
Dependent Claim
24 words
A femoral hip prosthesis (10) as in claim 9 wherein the capitulum (16) and the neck (14) are secured together by a Morse fit.
References Cited (Backward Citations)
FR1046516A
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