Intravascular catheter

Details Intravascular catheter Intravascular catheter

1979-12-17

1981-11-10

Pellegrino, Stephen C.

Surgery

Respiratory method or device

Ozone or ion generation

128240, 128DIG16, A61M 500, A61M 2500

Patent

active

042992176

ABSTRACT:
An intravascular catheter, comprising a hub having at least one branched tube mounted thereto apart from each other in the axial direction of the hub, a flexible double-walled tube having an inwardly tapered tip portion and consisting of an inner tube and an outer tube coaxial with the inner tube, providing an annular passageway between the outer wall of the inner tube and the inner wall of the outer tube and a needle removably inserted into the inner tube of the double walled tube. Further, the inner passageway has an opening at the tapered tip of the double-walled tube and the forward end of the annular passageway communicates with a bore or bores provided at the forward end portion of the outer tube excluding an upper portion thereof as defined by 20 in FIG. 6.

REFERENCES:
patent: 390177 (1888-09-01), Lee
patent: 3180562 (1965-04-01), Wittes et al.
patent: 3295632 (1965-07-01), Plowiecki
patent: 3399674 (1968-09-01), Pannier et al.
patent: 3699961 (1972-10-01), Szpur
patent: 3833003 (1974-09-01), Taricco
patent: 3851646 (1974-12-01), Sarns
patent: 4016879 (1977-04-01), Mellor
patent: 4073297 (1978-02-01), Kopp
patent: 4096860 (1978-06-01), McLaughlin
patent: 4099528 (1978-07-01), Sorenson et al.

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