Process for sealing catheter tip to insertion needle

Details Process for sealing catheter tip to insertion needle Process for sealing catheter tip to insertion needle

1993-09-10

1995-03-14

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

21912164, 21912169, 264161, 264248, B29C 6516

Patent

active

053975120

ABSTRACT:
A process is provided wherein a laser is used to shape and/or trim a polymer tubular catheter material while in situ on a metal insertion needle or cannula. The laser process seals the interface between the polymer catheter material and the metal cannula to prevent the flow of blood between the tubular catheter and the introducing cannula during insertion into a patient. The interface is of sufficient strength to resist such blood flow, but still sufficiently weak to prevent the removal of the cannula needle after insertion into a patient.

REFERENCES:
patent: 3943225 (1976-03-01), Koehn
patent: 4100393 (1978-07-01), Luther
patent: 4155966 (1979-05-01), Tschanz et al.
patent: 4414166 (1983-11-01), Charlson et al.
patent: 4576671 (1986-03-01), Shimanaka
patent: 4578061 (1986-03-01), Lemelson
patent: 4785868 (1988-11-01), Koenig, Jr.

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