Medical tool having lubricious surface in a wetted state and met

Details Medical tool having lubricious surface in a wetted state and met Medical tool having lubricious surface in a wetted state and met

1994-02-07

1995-08-15

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

424425, A61M 532

Patent

active

054414881

ABSTRACT:
This invention provides a medical tool the surface of which is enabled to acquire lasting lubricity (low friction) by assuming a state wetted with bodily fluid or aqueous solution. This surface is formed without requiring the coating work to be repeated. The medical tool is produced by coating a water-swellable polymer having in the molecular unit thereof a reactive functional group capable of being reacted with a proton-donating group, on the surface of a matric material possessing the proton-donating group, and also by coating a water-swellable polymer having in the molecular unit thereof a reactive group capable of being reacted with an acid anhydride group on the surface of a matric material possessing the acid anhydride group.

REFERENCES:
patent: 4100309 (1978-07-01), Micklus et al.
patent: 4666437 (1987-05-01), Lambert
patent: 5091205 (1992-02-01), Fan
patent: 5160790 (1992-11-01), Elton
patent: 5266359 (1993-11-01), Spielvogel

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