Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1989-03-23
1990-09-25
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604280, A61M 2500
Patent
active
049590570
ABSTRACT:
Catheter comprising a catheter shank 2 and a lateral opening 9 spaced from the front open end 4 thereof in which spaced from the lateral opening 9 a conical sealing ring 7 with rearwardly increasing diameter is disposed on the outer wall of the catheter shank 2.
REFERENCES:
patent: 3788328 (1974-01-01), Alley et al.
patent: 4392855 (1983-07-01), Oreopoulos et al.
Fresenius AG
Pellegrino Stephen C.
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