Tri-layer tubing

Details Tri-layer tubing Tri-layer tubing

1985-10-30

1986-12-09

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604280, 138137, 428 36, A61M 5325, A61M 25001

Patent

active

046278443

ABSTRACT:
A coextruded tri-layered medical-surgical tubing for the administration of common medicines such as insulin and nitroglycerin solutions is disclosed. Improved flexibility and uniformity and increased peel strength are obtained by interposing a layer of an ethylene-vinyl acetate copolymer between an outer layer of polyvinyl chloride and a core layer of low-density polyethylene. The composite tubing exhibits excellent fluid flow characteristics and is readily employed in the transportation of intravenous fluids and the like without absorbtion or contamination difficulties.

REFERENCES:
patent: 3561493 (1971-02-01), Maillard et al.
patent: 3618614 (1971-11-01), Flynn
patent: 4035534 (1977-07-01), Nyberg
patent: 4211741 (1980-07-01), Ostoich
patent: 4265276 (1981-05-01), Hatada et al.
patent: 4326532 (1982-04-01), Hammar
patent: 4378803 (1983-04-01), Takagi et al.

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