Catheter with needle gasket

Details Catheter with needle gasket Catheter with needle gasket

1989-07-10

1992-03-03

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604168, A61M 5178

Patent

active

050928457

ABSTRACT:
A catheter assembly is provided with a needle guard that slides along the needle to shield the distal tip of the needle after the needle is withdrawn from a patient. The needle passes through an aperture at the distal end of the needle guard. To prevent the backflow of blood through the aperture and into the needle guard, a gasket is formed in the aperture about the needle. The gasket is formed with the needle in place by filling the aperture around the needle with adhesive. After the adhesive has substantially cured but before the adhesive has tightly bonded to the needle the needle guard is moved along the needle to prevent bonding of the adhesive to the needle. The needle guard will thereafter slide along the needle with the needle passing through the formed-in-place gasket.

REFERENCES:
patent: 3559645 (1971-02-01), Schaller
patent: 4044765 (1977-08-01), Kline
patent: 4248246 (1981-02-01), Ikeda
patent: 4581024 (1986-04-01), Swenson
patent: 4832696 (1989-05-01), Luther et al.
patent: 4834718 (1989-05-01), McDonald
patent: 4846809 (1989-07-01), Sims
patent: 4850374 (1989-07-01), Diaz-Ramos
patent: 4917679 (1990-04-01), Kronner

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