Catheter introducer with enhanced needle gripping

Details Catheter introducer with enhanced needle gripping Catheter introducer with enhanced needle gripping

1993-03-17

1994-04-19

Weiss, John G.

Surgery

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

Treating material introduced into or removed from body...

604165, 604171, A61M 500

Patent

active

053041445

ABSTRACT:
A catheter introducer set is disclosed. The device comprises a cannula for insertion into a blood vessel, a tube in fluid communication with the cannula and a needle for assisting in the introduction of the cannula into the vessel. Between the cannula and the tube is an intermediate member which allows the needle to be gripped so that it can be inserted into the blood vessel. The intermediate member preferably has a pair of wings to facilitate the gripping of the needle. The needle has an opening or openings in it to allow a user to observe blood flashback during insertion of the needle into the blood vessel. The intermediate member is made of polyurethane and is provided with a groove to facilitate the gripping of the needle. The wings have ramps on them to facilitate the gripping of the needle. Ribs are also provided between the ramp and the intermediate member to facilitate gripping. The wings describe an angle of less than 180 degrees.

REFERENCES:
patent: 4177809 (1979-12-01), Moorehead
patent: 4362156 (1982-12-01), Feller, Jr. et al.
patent: 4834708 (1989-05-01), Pillari
patent: 4941881 (1990-07-01), Masters et al.
patent: 4969876 (1990-11-01), Patterson
patent: 5061250 (1991-10-01), Shields
patent: 5108376 (1992-04-01), Bonaldo
patent: 5147319 (1992-09-01), Ishikawa et al.
patent: 5149328 (1992-09-01), Zaha
patent: 5163913 (1992-11-01), Rantanen-Lee et al.

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