Method of varying the flow rate of fluid from a medical pump and hybrid sensor system performing the same
US8857269B2 · kind B2 · utility
50Cited by
58References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 2, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Nov 26, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/502
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method of varying the flow rate of fluid from a medical pump through tubing includes determining an inner diameter of the tubing and fluid flow velocity of fluid in the tubing with a controller based on acoustic signals received by a capacitive micromachined ultrasonic transducer sensor system and then determining and adjusting a fluid flow rate of fluid in the tubing with the controller. In addition, the same sensor system also detects air bubbles in the fluid in the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.