US Patent 11832967 Wearable physiological signal detecting device

A wearable physiological signal detecting device includes a device main body and a telescopic structure. The device main body has a strap which surrounds to form a wearable space. The telescopic structure is disposed in the strap and has first surfaces and second surfaces. Each of the first surfaces faces the corresponding second surface. Each of the first surfaces and the corresponding second surface continuously move close and contact each other to assume a first state. The strap can be forced so that each of the first surfaces and the corresponding second surface move away from each other and have an angle to assume a second state. The size of the wearable space when the first surface and the corresponding second surface assume the second state is greater than the size of the wearable space when the first surface and the corresponding second surface assume the first state.