Double wall catheter with internal printing and embedded marker

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

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12820714, A61M 2500

Patent

active

050450719

ABSTRACT:
A catheter and a method of making the same, which catheter has a means for interferring with an electromagnetic field to allow accurate detection of the catheter through tissue, the catheter comprising a first tube extruded over a continuous, solid core material having a diameter equivalent to the desired diameter of the inner passageway of the catheter, bands of metal fused to the first tube at various locations, and a second tube which is extruded over the first and the metal bands. The double-walled continuous tube is then cut into individual tubes and the core material is removed to form the catheter of this invention, which has a smooth outer surface and an embedded metal band.

REFERENCES:
patent: 2765792 (1956-10-01), Nichols
patent: 2786469 (1957-03-01), Cohen
patent: 3618613 (1971-11-01), Schulte
patent: 3847197 (1973-06-01), Caillouette et al.
patent: 3854229 (1974-12-01), Morgan
patent: 4063561 (1977-12-01), McKenna
patent: 4173228 (1979-11-01), Van Steenwyk et al.
patent: 4211741 (1980-07-01), Ostoich
patent: 4244362 (1981-01-01), Anderson
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patent: 4416286 (1983-11-01), Iinuma et al.
patent: 4431005 (1984-02-01), McCormick
patent: 4444186 (1984-04-01), Wolvek et al.
patent: 4445501 (1984-05-01), Bresler
patent: 4447239 (1984-05-01), Kruetten
patent: 4571240 (1986-02-01), Samson et al.
Surgitek.RTM. Advertisement from Medical Engineering Corp., Aug. 16, 1976.

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