| US 7,361,148 B2 | ||
| Cuff volumetric pulse wave obtaining apparatus, cuff volumetric pulse wave analyzing apparatus, pressure pulse wave obtaining apparatus, and pressure pulse wave analyzing apparatus | ||
| Kiyoyuki Narimatsu, Komaki (Japan) | ||
| Assigned to Colin Medical Techology Corporation, Aichi-Ken (Japan) | ||
| Filed on Jan. 14, 2004, as Appl. No. 10/756,408. | ||
| Claims priority of application No. 2003-016797 (JP), filed on Jan. 24, 2003. | ||
| Prior Publication US 2004/0158162 A1, Aug. 12, 2004 | ||
| Int. Cl. A61B 5/02 (2006.01) | ||
| U.S. Cl. 600—494 [600/490; 600/493] | 16 Claims |
| 1. An apparatus for obtaining a cuff volumetric pulse wave, comprising:
a cuff adapted to be worn on a limb of a living subject so that a pressure pulsation is produced in the cuff;
a pressure sensor which is connected to the cuff, and which detects, as an actual cuff volumetric pulse wave, a pressure oscillation
transmitted thereto from the cuff;
an inverse transfer function memory which stores an inverse transfer function corresponding to a transfer function between
pressure pulsation as input and pressure oscillation as output; and
a cuff volumetric pulse wave determining means for determining a no-delay cuff volumetric pulse wave having substantially
no delay of transmission based on the actual cuff volumetric pulse wave detected by the pressure sensor and the inverse transfer
function stored by the inverse transfer function memory.
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