Catheter assembly

Details Catheter assembly Catheter assembly

1988-03-03

1989-09-05

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604170, 128658, A61M 500

Patent

active

048634310

ABSTRACT:
The catheter assembly employs a catheter unit, a needle unit and a guide wire unit which has a guide wire located within the hollow needle of the needle unit in the retracted position of the needle unit. The guide wire is initially spaced about three to six millimeters from the distal end of the hollow needle and can be inserted into a vessel over a distance of about one-half inch. The needle unit has a flashback chamber which is sealed by the guide wire unit to prevent outflow of blood.

REFERENCES:
patent: 4193399 (1980-03-01), Robinson
patent: 4417886 (1983-11-01), Frankhouser et al.
patent: 4509945 (1985-04-01), Kramann et al.
patent: 4525157 (1985-06-01), Vaillancourt
patent: 4655750 (1987-04-01), Vaillancourt

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