Catheter for intravascular pressure measurement
US4936310A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1989 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Apr 20, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a catheter for intravascular pressure measurement. The catheter includes a leader (3) with a transducer (4). The leader is surrounded by an inner sheath (2) with a reduced partial section portion (6) and by an outer sheath (1) arranged around the inner sheath. An end closure (5) joins the outer and inner sheath to each other at the distal end of the catheter to form an outer cavity (9), intended to be pressurized by an outside pressure source, whereby the attenuated partial section sealingly surrounds the leader or transducer (4). Pressure calibration in situ is enabled with the aid of the inventive catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.