Catheter with trans-luminal gas pathway

Details Catheter with trans-luminal gas pathway Catheter with trans-luminal gas pathway

1980-06-18

1982-05-11

Kamm, William E.

Surgery

Truss

Pad

128642, 128786, A61M 2500

Patent

active

043288065

ABSTRACT:
A catheter having at least two separate lumens, one for conveying liquids to and from a port spaced substantially from the distal end of the catheter and the other for enclosing an electrical conductor which extends to a point distal to the port. The two lumens are separated by a longitudinal septum and combine to perform a third function--that of containing a gas required in connection with the operation of a pressure responsive element adjacent the catheter's distal end. The septum is provided with an aperture through which the gas chamber or pathway switches from one lumen to the other. A sealant plug located in the lumen for liquid flow prevents contact between such liquid and both the electrical conductor and the gas within the pathway. Methods for forming such a catheter are also disclosed.

REFERENCES:
patent: 2052422 (1936-08-01), Rottsieper
patent: 3448739 (1969-06-01), Stark et al.
patent: 3955623 (1976-12-01), Blake et al.
patent: 4147169 (1979-04-01), Taylor
patent: 4216349 (1980-08-01), Wium
patent: 4222384 (1980-09-01), Birtwell

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