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2 202 992

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IPC

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Application

2000125947/14, 2000-10-12

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Start date

2000-10-12

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Actual filing date

2000-10-12

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Published

2003-04-27

(72)

Inventor

Vojtovich A.V.Pen'Kov V.L.Parfeev S.G.Parfeev D.G.Abolin A.B.Shubnjakov I.I.Goncharov M.Ju.Zuraev O.A.

(73)

Holder

Rossijskij Nauchno-Issledovatel'Skij Institut Travmatologii I Ortopedii Im. R.R. Vredena

COTYLOID PART OF BIPOLAR HIP JOINT ENDOPROSTHESIS WITH REINFORCED FRICTION PAIR Russian patent published in 2003 - IPC

Abstract RU 2202992 C2

FIELD: medical engineering. SUBSTANCE: device has external metal head, metal head piece of less diameter fixable directly on endoprosthesis leg. The metal head piece of less diameter is enclosed into two metal hemispheres to prevent it from falling-out and to enable its free rotation without beat. The hemispheres are fixed in the external metal head partially by means of common rod on hemispheres introduced into the external metal head and partially due to plastic deformation of the external metal head that envelops and tightens the hemispheres in the external metal head body. The metal head piece of less diameter is fixed on endoprosthesis leg via conic connection. Material like cobalt-chromium alloy is used as metal for producing metal head pieces of less diameter and hemispheres. EFFECT: high reliability and long service life of prosthesis. 1 dwg

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RU 2 202 992 C2

Authors

Vojtovich A.V.

Pen'Kov V.L.

Parfeev S.G.

Parfeev D.G.

Abolin A.B.

Shubnjakov I.I.

Goncharov M.Ju.

Zuraev O.A.

Dates

2003-04-27—Published

2000-10-12—Filed

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