Dual-diameter multifunction catheter
US5108369A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Mar 15, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S439/909
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.