Tissue perfusion sensor and placement device

A sensor system for measuring partial pressure of carbon dioxide is provided. The sensor system includes a physiological sensor and a sensor placement device. The sensor comprises: a sensor cover having a substantially C-shaped cross section, said sensor cover defining an opening on its underside; a film body received within the opening, the film comprising an amorphous fluoroplastic, the film comprising a first end and a second end and defining a chamber therein; a sensor body for coupling the membrane to the sensor cover; two or more electrodes located within the membrane chamber; and a substantially electrolyte-free liquid contained within the chamber of the membrane and in contact with the two or more electrodes. The sensor placement device is configured to position the membrane body against buccal tissue of a subject such that at least 40% to 50% of the membrane body contacts the buccal tissue. 提供了一种用于测量二氧化碳分压的传感器系统。该传感器系统包括生理传感器和传感器放置装置。该传感器包括：横截面为大致C形的传感器盖，所述传感器盖在其下侧限定有开口；容纳在所述开口内的膜主体，所述膜包括无定形氟塑料，所述膜包括