Dual-diameter multifunction catheter
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United States of America Patent
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-
Feb 15, 1994
Issued Date -
N/A
app pub date -
Feb 18, 1992
filing date -
Mar 15, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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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Family
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