Apparatus for forming a catheter

Details Apparatus for forming a catheter Apparatus for forming a catheter

1978-01-25

1979-10-23

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Rod or tubular preform

425445, 425393, B29C 1700

Patent

active

041719433

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: 3034172 (1962-05-01), Sander et al.
patent: 3857666 (1974-12-01), Barnett
patent: 3932094 (1976-01-01), Korff et al.
patent: 3964847 (1976-06-01), Redmer et al.

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