Combined catheter and needle

Details Combined catheter and needle Combined catheter and needle

1989-10-02

1991-02-19

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604164, 604198, 604110, 604263, A61M 532

Patent

active

049940422

ABSTRACT:
A combined needle and catheter assembly comprising a body in which is provided a plunger having the needle at one end with the catheter enclosing said needle with the tip exposed. A pusher is provided to move the plunger to the proximate end of the body to expose the needle with catheter and to lock the plunger in place against a spring which biases the plunger toward the distal position in the body. After use of the needle with the catheter moved into place, a release is employed to permit the plunger with needle to be driven back into the body, permitting the catheter to be separated from the body and ready for use.

REFERENCES:
patent: 3094122 (1963-06-01), Gauthier et al.
patent: 3884230 (1975-05-01), Wulff
patent: 4311137 (1982-01-01), Gerard
patent: 4389210 (1983-06-01), Genese
patent: 4496348 (1985-01-01), Genese et al.
patent: 4565545 (1986-01-01), Suzuki
patent: 4588398 (1986-05-01), Daugherty et al.
patent: 4627841 (1986-12-01), Dorr
patent: 4629450 (1986-12-01), Suzuki et al.
patent: 4664654 (1987-05-01), Strauss
patent: 4728322 (1988-03-01), Walker et al.
patent: 4850561 (1989-07-01), Wanderer et al.

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