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ELECTRONIC BLOOD PRESSURE MEASUREMENT DEVICE CALCULATING BLOOD PRESSURE VALUE

  • US 20090312651A1
  • Filed: 11/22/2006
  • Published: 12/17/2009
  • Est. Priority Date: 12/20/2005
  • Status: Active Grant
First Claim
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1. An electronic blood pressure measurement device comprising:

  • a measurement bladder for pressing against a measurement site in a state having a predetermined amount of air sealed,a pressure detection portion detecting a pressure signal indicating an internal pressure in said measurement bladder,a pulse wave detection portion detecting a pulse wave amplitude included in said pressure signal detected by said pressure detection portion,a squeezing portion exerting an externally applied pressure to said measurement bladder to press said measurement site through said measurement bladder, anda blood pressure calculation portion,information of cuff compliance property obtained from a change of said internal pressure and volume of said measurement bladder having a predetermined amount of air sealed being stored in advance in a storage portion,said blood pressure calculation portion includinga pulse wave amplitude detection portion detecting said pulse wave amplitude through said pulse wave detection portion in a process of changing said internal pressure in said measurement bladder by changing said externally applied pressure to said measurement bladder through said squeezing portion, anda correction portion correcting said pulse wave amplitude detected by said pulse wave amplitude detection portion using said information of cuff compliance property read out from said storage portion,blood pressure being calculated based on said pulse wave amplitude corrected by said correction portion.

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