Remote sensing tonometric catheter apparatus and method
US6238339A · kind A · utility
21Cited by
23References
98Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1995 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | May 5, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1061
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved remote sensing tonometric catheter apparatus (20) and method for sampling of a fluid or gas property of interest in a hollow internal organ. The tonometric catheter (20) assists in early detection of the problems of stress ulceration and/or intestinal ischemia. The tonometric catheter (20) can be one or more sampling chambers (40) for introduction into an internal organ or area adjacent thereto. Preferably, the wall (36) of the sampling chamber (40) is freely permeable to the gas or fluid to be measured by the sensor (42), but is poorly permeable to other gases or fluids which may interfere with the sensor (42).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.