Sensor for intra-corporeal medical device and a method of manufacture
US6221023A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1996 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Dec 2, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sensor mounted on the distal end of an intra-corporeal catheter detects pressure applied thereto. The sensor includes a chip that is deformable in accordance with pressure applied thereto, strain gauges mounted on the chip, a sensing plate, a projection, a cap and a tube. A cover covers the chip, the sensing plate, the projection and the cap and gives a smooth tapered shape to the catheter's distal end. The projection and the cap transmit pressure applied to the catheter's distal end to the sensing plate and tilt the sensing plate in accordance with the pressure. The strain gauges issue detection signals according to the degree and the direction of the tilting. The pressure applied to the catheter's distal end is detected based on the issued signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.