Catheter

Details Catheter Catheter

1976-11-18

1978-06-20

Truluck, Dalton L.

Surgery

Respiratory method or device

Ozone or ion generation

128348, A61M 2500

Patent

active

040955982

ABSTRACT:
A catheter assembly including a plastic tube having a cup-shaped bulb at one end and which is oval in cross section. The walls of the bulb are thicker than the remainder of the tube and a hub is molded about the bulb both interiorly and exteriorly thereof. The bulb is formed by placing the tube on a mandrel, which extends from a mandrel carrier, and thereafter placing the carrier on a base so that the upper end of the tube and mandrel extend through a slot and into a heating cavity defined by a housing. The upper end of the tube is subjected to radiant heat on opposite sides thereof to heat the circumference of the tube unevenly to form and define the cup-shaped bulb. The upper end of the tube is heated to a temperature close to its melting point.

REFERENCES:
patent: 3030953 (1962-04-01), Koehn
patent: 3469579 (1969-09-01), Hubert
patent: 3720210 (1973-03-01), Diettrich
patent: 3721231 (1973-03-01), Hubert
patent: 3943225 (1976-03-01), Koehn

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