Dual-diameter multifunction catheter

Details Dual-diameter multifunction catheter Dual-diameter multifunction catheter

1990-03-15

1992-04-28

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

606194, 606192, 604280, 604102, A61M 2900

Patent

active

051083698

ABSTRACT:
A catheter (10) is disclosed having a stepped coaxial construction formed by an 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.

REFERENCES:
patent: 3995623 (1976-12-01), Blake et al.
patent: 4327720 (1982-05-01), Bronson et al.
patent: 4329993 (1982-05-01), Lieber et al.
patent: 4563181 (1986-01-01), Wijayarathna et al.
patent: 4581017 (1986-04-01), Sahota
patent: 4637389 (1987-01-01), Heyden
patent: 4721115 (1988-01-01), Owens
patent: 4795439 (1989-01-01), Guest
patent: 4802490 (1989-02-01), Johnston
patent: 4878898 (1989-11-01), Griffin et al.
patent: 4883459 (1989-11-01), Caldron
patent: 4950257 (1990-08-01), Hibbs et al.
patent: 5010886 (1991-04-01), Passafaro et al.

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