Patent ID: 7250030

Claim:
A cuff for a blood pressure monitor having a fluid bag increasing in size in a thickness direction when inflated and decreasing in size in said thickness direction when deflated, wherein said fluid bag includes a first bag member located on an outer side in said thickness direction in a state where the cuff for a blood pressure monitor is fitted on a living body and having a first inflated/deflated space therein, and a second bag member located on an inner side in said thickness direction in the state where the cuff for a blood pressure monitor is fitted on a living body and having a second inflated/deflated space therein, said second bag member is formed by joining a rim of a single-layer sheet-shaped member to an inner surface of said first bag member, the single-layer sheet-shaped member being narrower in width than said first bag member, said second inflated/deflated space is defined by said living body side surface of said first bag member and a main surface of said single-layer sheet-shaped member facing said living body side surface, and said first bag member has ends that delimit a width of said first inflated/deflated space and is joined to said single-layer sheet-shaped member at positions more inward than the ends that delimit the width of said first inflated/deflated space.