PROBLEM TO BE SOLVED: To obtain a signal similar to pure pulse wave by removing motion noise components including the body motion influence applied to the subcutaneous tissue in measuring pulse wave.SOLUTION: The pulse wave measuring apparatus includes a pseudo lymph vessel in which a pseudo lymph fluid simulating the subcutaneous tissue is enclosed on the outer side of a pseudo blood vessel for measuring body motion components of blood. A light emitting element and a light receiving element are attached to hold the pseudo lymph vessel between the elements. The light emitted from the light emitting element and passing through the pseudo lymph vessel and pseudo blood vessel is received by the light receiving element. A signal thus receiving the light is included in a pulse wave measuring signal, and has a high interrelation with a motion component representing the body motion influence applied to the blood vessel and the subcutaneous tissue. By removing the motion component represented by the signal, the motion components including the body motion influence applied to the subcutaneous tissue are removed from the pulse wave measuring signal, so that a pure pulse wave component is obtained.COPYRIGHT: (C)2012,JPO&INPIT【課題】脈波測定における、皮下組織が受けた体動影響を含めた動きノイズ成分を除去し、純粋な脈波に近い信号を得ること。【解決手段】脈波計測装置において、血液の体動成分を計測するための擬似血管の外側に、皮下組織を模擬する擬似リンパ液を封入された擬似リンパ管を設け、この擬似リンパ管を挟むように発光素子と受光素子を取り付ける。発光素子から照射され、擬似リンパ管及び擬似血管を透過した光を受光素子が受光する。このように受光した信号は、脈波測定信号に含まれ、血管及び皮下組織が受けた体動影響を示す動き成分と高い相関関係にある。この信号が示す動き成分を脈波測定信号から除去することにより、皮下組織が受けた体動影響を含めた動き成分を脈波測定信号から除去し、純粋な脈波成分を得る。【選択図】図3
