Integrated detector for detecting bubbles in fluid flow and occlusions in a tube
US8770010B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2010 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Dec 23, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/16863
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An integrated fluid sensor combining bubble and occlusion detection. A housing having a channel with three sides holds a tube containing a fluid flow. An ultrasonic transmitter and ultrasonic receiver retain the tube on two opposing sides. Placed between the two opposing sides is a third side containing a pressure sensor. The pressure sensor contacting the surface of the tube detects changes of pressure within the tube due to changes in fluid flow so as to detect occlusions. The restraining of the tube between the opposing ultrasonic transmitter and ultrasonic receiver confine the tube so that a resulting increase in pressure is detected by the pressure sensor. A reduction in the size of devices for detecting fluid flow or bubbles is made possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.