Abstract: The present invention relates to a device for measuring a physiological parameter of a human limb such as peripheral capillary oxygen saturation. The device comprises a hollow elastic sleeve of a predetermined shape comprising a cavity having a closed-loop cross-section for enclosing the limb; first and second arms, each comprising a hinge portion between a coupling portion and a handle portion, the coupling portion of the first and second arms being adapted to be coupled, respectively, to first and second diametrically-opposite longitudinal sections of the sleeve; and a physiological sensor for interacting with the limb enclosed in said cavity. The hollow elastic sleeve holds the first and the second arms and causes their hinge portions to mutually engage to form a hinge mechanism so that, by applying a compression force on the handle portions, the first and second arms rotate about the hinge mechanism expanding the cavity, allowing the limb to be received therein.

Abstract: The described embodiments relate to a sensor patch that can be temporarily removed and re-applied in the same location using a side element of the sensor patch. The side element can be folded onto the sensor patch when the sensor patch is adhered to an object such as an appendage of a person. The side element can be unfolded and adhered to the appendage in order to preserve the placement of the sensor patch on the appendage. In this way, maintenance such as cleaning can be performed on the area where the sensor patch is located without having to dispose of the sensor patch. Once maintenance is completed, the side element can be folded back onto a surface of the sensor patch until maintenance is to be performed again.