Catheter contact force sensor
US11872026B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2020 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Dec 5, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0059
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spring assembly usable with an intravascular catheter can include a tubular body, two mounting surfaces, and a compressible framework. The tubular body extends along a longitudinal axis and is sized to traverse vasculature. Each mounting surface can be configured to engage a substantially planar electrical circuit and is positioned in the tubular body each in a respective plane perpendicular to the longitudinal axis. The mounting surfaces face toward each other in opposite directions. The compressible framework extends between the first and second mounting surfaces. The spring assembly can further include a pair of electrical circuits mounted to the pair mounting surfaces. Each electrical circuit can include an inductive coil such that the pair of electrical circuits is a distance transducer. A change in distance between the pair of electrical circuits can be detected when the compressible framework is compressed and/or bent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.