Title: Surgical dressings

Abstract: A polyurethane foam article, preferably a surgical dressing, at least one surface of which is rendered lyophilic by applying pressure and heat to said surface.

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Inventors: Lock, Peter Maurice (Gillingham, EN)

Application Number: 295236
Filing Date: 1972-10-05
Publication_date: 1976-08-17
Assignee: Ionics Lyo Products Company (Watertown, MA)
Primary Class(es): 602/46 264/54, 264/321, 264/DIG14, 428/314.2, 428/316.6, 521/51, 521/174, 521/905, 521/918
Other Classes:
US Patent Ref:

3012283	Dec, 1961	Foster	264/321.
3325338	Jun, 1967	Geen	264/321.
3328505	Jun, 1967	Spencer	264/321.
3370117	Feb, 1968	Blue	264/321.
3378432	Apr, 1968	Spencer	264/321.
3386877	Jun, 1968	Skochdopole	264/321.
3443007	May, 1969	Hardy	264/321.
3506600	Apr, 1970	Zocco	260/2.
3650993	Mar, 1972	Zocco	260/2.
3658972	Apr, 1972	Ready	260/2.
3763301	Oct, 1973	Civardi	264/321.
3816233	Jun, 1974	Powers	161/159.

Other Refs: 1,065,9941,253,845

Apr, 1967	UK.
Nov, 1971	UK.

Primary Examiner: Ivy, C. Warren
Assistant Examiner:
Attorney: Saliba; Norman E.