Dual-diameter multifunction catheter

Details Dual-diameter multifunction catheter Dual-diameter multifunction catheter

1992-02-18

1994-02-15

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604104, 604280, 606192, 606194, A61M 2900

Patent

active

052862593

ABSTRACT:
A catheter (10) is disclosed having a stepped coaxial construction formed by and internal tube (12) and an external tube (14). The internal tube includes a distal pressure lumen (26), a balloon inflation lumen (28), and a sensor lumen (30). The external tube includes the first proximal pressure lumen (48), second proximal pressure lumen (50), injection lumen (52), and transducer lead lumen (54). A cylindrical transducer (16), sensor (18), and balloon (42) are supported on the internal and external tubes, which allow the transducer to be coaxially mounted thereon. The catheter has a high lumen count, large lumen cross-sectional area, is easy to construct and use, and allows cardiac output to be measured continuously without sacrificing other currently available catheter functions.

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patent: 4721115 (1988-01-01), Owens
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patent: 4954129 (1990-09-01), Giuliani et al.
patent: 5010886 (1991-04-01), Passafaro et al.
patent: 5108369 (1992-04-01), Ganguly et al.

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