Patent ID: 7794405

Claim:
A cuff for a blood pressure monitor having a fluid bag inflated and deflated as a fluid comes in and out, wherein said fluid bag includes an inner wall portion located on an inner side in the state where the cuff for a blood pressure monitor is wound around a living body, an outer wall portion located on an outer side than said inner wall portion, a first side wall portion connecting a side end portion of said inner wall portion and a side end portion of said outer wall portion and folded inwards in a width direction of said fluid bag in a deflated state where said fluid bag is not pressurized to thereby form a gusset at a side end portion of said fluid bag, and a second side wall portion opposite the first side wall portion in the width direction of said fluid bag, and a joined portion for reducing expansion of the gusset formed by said first side wall portion is provided at a region of the side end portion of said fluid bag in its winding direction around the living body, wherein said joined portion does not join said first side wall portion to said second side wall portion.