Patent ID: 11918327
Assignee: OMRON CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. A sphygmomanometer comprising:
a main body that is mounted with a pump and is configured to be disposed on a dorsal surface of a wrist as a measurement target site;
a belt that extends respectively from an ulnar side end portion and a radial side end portion of the main body and is configured to be attached around the wrist;
a cuff structure that has a band shape and a set length extending from a first end to a second end on a side opposite to the first end, the first end of the cuff structure being attached to the ulnar side end portion of the main body such that the cuff structure is configured to extend along a circumferential direction of the wrist from the ulnar side end portion of the main body to a palmar surface of the wrist, wherein
in a state that the sphygmomanometer has been assembled, the cuff structure is disposed facing an inner circumferential surface of the belt and is affixed only to the main body and only at the first end in a separable manner from the inner circumferential surface of the belt;
in a state that the sphygmomanometer has been assembled and before being attached to the wrist as the measurement target site, the cuff structure is entirely separated from and external to the inner circumferential surface of the belt and is movable independently relative to the belt; and
a programmed processor configured to:
perform control of supplying a fluid from the pump to the cuff structure to press the wrist, and
calculate a blood pressure based on a pressure of the fluid contained in the cuff structure, wherein:

in an attached state when the belt and the cuff structure together with the main body are configured to be attached to the wrist, the belt respectively extending from the ulnar side end portion and the radial side end portion of the main body is configured to surround and restrain, in the circumferential direction, an outer circumferential side of the cuff structure extending along the circumferential direction of the wrist collectively with the wrist, such that the cuff structure is configured to be pressed to the wrist, and
a length of the belt along the circumferential direction is configured to be set variably depending on wrists having different circumferential lengths from each other, such that, when the length of the belt varies, a range along the inner circumferential surface of the belt occupied by the cuff structure having the set length varies relative to the length of the belt.