Digital watch/infrared plethysmograph having a removable pulse sensor unit for use with a finger cuff extension
AssigneeHughes Aircraft Company
InventorRudolf F. Zurcher
Life of this patent
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Abstract
A digital watch having a face mounted detachable pulse sensor unit coupled to infrared plethysmograph electronics within the watch. The pulse sensor unit is detachable from a receptacle on the watch face and mountable into a receptacle at a first end of a remote pulse sensing cable. The second end of the cable is connected into the watch receptacle for conveying the pulse sensing information to the infrared electronics. A cuff holds the pulse sensor unit in place against the wearer's finger for sampling his heartbeat. The wearer may thus monitor his pulse rate while both hands are free.
Claims17
An infrared plethysmograph having a remote pulse sensing feature, comprising:
- pulse sensing electronics having a digital display and a receptacle for alternatively receiving either a pulse sensor unit or a remote sensing cable;
- a pulse sensor unit detachably mountable to said receptacle;
- a remote pulse sensing cable having a connector at a first end for mounting onto said receptacle, said cable having a receptacle at the second end for receiving said pulse sensing unit;
- and
- a cuff attached to said second end for securing said pulse sensing unit to a skin surface for sensing a pulse.
Dependencies are inferred from the claim text.