Force-sensing catheter with bonded center strut
US9101734B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2008 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Feb 7, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/015
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A force-sensing catheter for diagnosing or treating the vessels found within a body or body space includes a center strut that is bonded, preferably thermally, along its longitudinal axis with the thermoplastic tubular member within which it is housed. The tubular member preferably has three layers: an inner layer, a braided layer and an outer layer. One or more semiconductor or metallic foil strain gages are affixed to the center strut in order to provide a measure of the bending and torsional forces on the distal tip of the catheter. Temperature compensation is achieved by having a temperature sensor near the strain gages and calibrating the catheter over a range of temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.