Infusion needle

Details Infusion needle Infusion needle

1993-04-05

1994-10-18

Weiss, John G.

Surgery

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

Treating material introduced into or removed from body...

604165, 604264, A61M 5178

Patent

active

053563891

ABSTRACT:
An infusion needle, more particularly for general infusion therapy, having a needle body (1) having a metal cannula (2) and a cylindrical receiving opening (3) connected thereto, the best possible adaptation to movements by the patient is achieved, without having to abandon the secure retention of the infusion needle at the place of application, by the features that the metal cannula (2) takes the form of an inner aspiration needle which is enclosed by a somewhat shorter closely adjoining plastics cannula (4) which terminates conically and is connected to the receiving opening (3), the needle body (1) being constructed bent in the transitional zone between the receiving opening (3) and the plastics cannula (4), and the metal cannula (2) being constructed to be drawn out of the enclosing plastics cannula (4 ) and the needle body (1 ).

REFERENCES:
patent: 2008340 (1935-07-01), Salvati et al.
patent: 2402306 (1946-06-01), Turkel
patent: 3900026 (1975-08-01), Wagner
patent: 4292970 (1981-10-01), Hession
patent: 4392853 (1983-07-01), Muto
patent: 4518383 (1985-05-01), Evans
patent: 4690675 (1987-09-01), Katz
patent: 4846805 (1989-07-01), Sitar
patent: 5163913 (1992-11-01), Rantanen-Lee et al.

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