Method and sensor for detecting catheter obstruction
US9974932B2 · kind B2 · utility
1Cited by
10References
14Claims
0Family size
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Key dates
| Filing date | Aug 10, 2015 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Dec 29, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0538
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A self-monitoring catheter system may detect an obstruction during use of a catheter. The system may include a catheter with an interior lumen that has one or more ports into the lumen; a first and a second electrode; and an impedance measurement instrument that measures changes in the impedance between the first and the second electrodes after the first electrode is exposed to fluid within the catheter lumen, thereby signaling an obstruction during use of the catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.