Invention Grant
- Patent Title: Photoelectric sphygmograph measurement device
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Application No.: US13169480Application Date: 2011-06-27
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Publication No.: US09782127B2Publication Date: 2017-10-10
- Inventor: Satoshi Sano , Takayuki Yamaji , Yasuhiko Nakano
- Applicant: Satoshi Sano , Takayuki Yamaji , Yasuhiko Nakano
- Applicant Address: JP Kawasaki
- Assignee: FUJITSU LIMITED
- Current Assignee: FUJITSU LIMITED
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Main IPC: A61B5/02
- IPC: A61B5/02 ; A61B5/00 ; A61B5/024

Abstract:
A photoelectric sphygmograph measurement device includes a light emitting part emitting light pulses, a light receiving part having a light receiving element that receives the light pulses and producing a corresponding output signal, and a control part driving the light emitting part to emit the light pulses and performing a pulse wave measurement by using the output signal. The control part drives the light emitting part so that a charge accumulated in the light emitting element converges on a predetermined amount in a case where the charge accumulated in the light receiving element decreases to the predetermined amount or less during a time when driving of the light emitting part is stopped and/or in a case where the light receiving element changes to a first state in which the light receiving element is capable of receiving the light pulses from a second state in which the light receiving element is not capable of receiving the light pulses.
Public/Granted literature
- US20110257534A1 PHOTOELECTRIC SPHYGMOGRAPH MEASUREMENT DEVICE Public/Granted day:2011-10-20
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