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2 211 008

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IPC

(21) (22)

Application

98117071/04, 1997-02-11

(24)

Start date

1997-02-11

(22)

Actual filing date

1997-02-11

(45)

Published

2003-08-27

(72)

Inventor

Merrill Ehdvard V.Kharris Uil'Jam Kh.Dzhasti MuraliMuratoglu OrkhunBrehgdon Charl'Z R.O'Konnor Dehniel O.Venugopalan Premnatkh

(73)

Holder

Massachusets Institut Of TeknolodzhiDze Dzheneral Khospital Korporejshn

PROSTHETIC DEVICES OUT OF POLYETHYLENE OF ULTRA-HIGH MOLECULAR WEIGHT TREATED WITH IRRADIATION AND FUSION Russian patent published in 2003 - IPC

Abstract RU 2211008 C2

FIELD: medicine, orthopedics. SUBSTANCE: the present innovation deals with manufacturing prostheses. Medicinal prosthesis is indicated to be applied as implant of hip and knee joints inside patient's body and is manufactured out of polyethylene of ultra-high molecular weight, which, in fact, has no detected free radicals. Polyethylene suggested is represented by irradiation-treated cross- sectionally sutured one at molecular weight being, at least, 500000, and about 2-3 peaks of fusion. Obtained prostheses demonstrate decreased formation of particles out of prosthesis during its usage, and, in fact, are resistant to oxidation. EFFECT: higher efficiency. 33 cl, 11 dwg, 21 tbl

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RU 2 211 008 C2

Authors

Merrill Ehdvard V.

Kharris Uil'Jam Kh.

Dzhasti Murali

Muratoglu Orkhun

Brehgdon Charl'Z R.

O'Konnor Dehniel O.

Venugopalan Premnatkh

Dates

2003-08-27—Published

1997-02-11—Filed