Optical device for non-invasive measurement of blood related signals utilizing a finger holder
US6213952A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Sep 28, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6838
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A finger holder for attaching to the patient's finger and an optical measurement device utilizing the finger holder for performing non-invasive measurements of blood-related signals are presented. The finger holder comprises a measuring unit located at a first location of the finger and a pressurizing assembly capable of applying desired over-systolic pressure to a second location on the patient's finger upstream of the first location with respect to a normal blood flow direction. The measuring unit is supported on a clip member that secures the fingertip between the clip's legs. A substantially rigid connector connects the clip member and the pressurizing assembly, wherein the connector engages the finger along its middle phalanx and proximal intephalangeal joint, thereby preventing it from folding during the measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.