Extracorporeal emboli detector
US7628756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2006 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Jul 20, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/4209
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An emboli detector device receives a blood flow in a perfusion circuit. The connector-like device has a rigid plastic smooth body hermetically sealed from the blood. There is a calculated thin, but rigid window formed as part of the flow-through tubing wall to allow ultrasonic waves to interrogate the flowing blood. A dampening material is included in the ultrasound path to adjust the acoustic levels to an applicable range to monitor emboli. The device incorporates a mechanism to securely hold the transducer during operation and a sensing system for automatically informing a control system of which one of several standard perfusion circuit tubing diameters is being used. The ultrasound echoes detected by the transducer are provided to a controller which detects the emboli and provides a detection signal to warn the surgeon or other operating room personnel of the embolic event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.