Pressure measuring catheter having reduced error from bending stresses
US10201284B2 · kind B2 · utility
2Cited by
174References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2015 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | May 15, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0247
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is mounted with one end coupled to the distal end of the shaft while the other end of the sensor is not coupled to the catheter so that a portion of the sensor is spaced apart from the distal end of the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.