Catheter for monitoring pressure
US11672457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2019 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Mar 29, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1068
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter insertable into a patient for monitoring pressure having an expandable outer balloon. An expandable inner balloon is positioned within the lumen of the catheter and has having a second outer wall and forms a gas chamber to monitor pressure within the patient. In response to pressure exerted on the outer wall of the outer balloon, fluid within the outer balloon enters an opening in the wall of the catheter lumen to exert a pressure on the outer wall of the expanded inner balloon to deform the inner balloon and compress the gas within the inner balloon. A pressure sensor communicates with the gas containing chamber for measuring pressure based on compression of gas caused by deformation of the expanded inner balloon resulting from deformation of the expanded outer balloon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.