Arterial blood flow simulator
US6400973B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Dec 29, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0233
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An artificial blood flow simulator to be used to test or calibrate a pulse oximeter has a body which is at least partially transparent to red and infrared light waves. Within the body is a light valve which is responsive to an electronic signal for varying the amount of light passing through the body. Connected to the light valve is a signal generator for generating a pulsating electronic signal which corresponds to a given blood flow. The device has the permeability of a human appendage between pulses of blood in the arterial system when the signal generator is generating an electronic pulse and has the permeability of an appendage having arterial blood flowing therethrough when the signal generator is not generating an electronic pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.