Probe cover having a blackbody
View Patent ↗A probe cover having a portion that operates as a blackbody. The blackbody is a combination of a stretchable film and a metal. The blackbody rapidly heats to equilibrium with the body tissue. An infrared thermometer using the probe cover may view the blackbody to acquire the temperature of the body tissue temperature being measured.
1. A probe cover for an infrared electronic thermometer comprising a generally tubular body having an open end and a closed end, the body being sized and shaped to receive a probe shaft of the infrared electronic thermometer into the body through the open end, the body including a blackbody portion at said closed end of the body, the blackbody portion being formed of a material that rapidly equilibrates to a temperature corresponding to the temperature of an object for viewing by a sensor of the electronic thermometer to measure the temperature of the object, the sensor is located within the probe shaft behind the blackbody, and wherein the probe cover further comprises a stretchable film when applied over the probe shaft, the probe cover engages and is stretched over the probe shaft closely conforming the blackbody portion of the film to the shape of the probe shaft for providing improved conductive heat transfer from a measurement site through the blackbody portion of the film for viewing by the sensor; wherein the material of the blackbody portion is different than the material of the remainder of the tubular body; and further wherein the blackbody portion material comprises a metal.
2. A probe cover as set forth in claim 1 further comprising a film member wherein the blackbody portion is defined by metal deposited on the film.
3. A probe cover as set forth in claim 1 wherein the blackbody portion is located in a central region of the film member.