Temperature sensing probe and disposable probe cover

Details Temperature sensing probe and disposable probe cover Temperature sensing probe and disposable probe cover

G - Physics

01

K

26/112, 73/123,

G01K 1/14 (2006.01) G01K 1/08 (2006.01)

Patent

CA 1150972

TEMPERATURE SENSING PROBE AND DISPOSABLE PROBE COVER ABSTRACT This invention relates generally to a tempera- ture sensing probe and disposable probe cover adapted for use with an electronic thermometer. A disposable cover for an electrical probe is known, wherein the cover includes a thermally insulating plastic body formed together with a heat conductive metal tip. However, forming the cover with a body and tip portion of dissimilar materials is costly and increases the expense of employing the device. Moreover, such ar- rangement generally has included an electrical probe having a spring biased probe shaft mounted for axial reciprocation, thereby adding further to the cost and complexity of the device. The present invention over- comes these deficiencies by providing an improved probe and cover arrangement. The temperature sensing probe includes a probe shaft rigidly mounted on a handle and having a temperature sensing tip at the distal end of the shaft. A disposable cover is provided in the form of a unitary elongated tube constructed of heat con- ductive material and having an open proximal end arranged to slide over the probe shaft and a closed distal end arranged to tightly engage the temperature sensing tip of the shaft in order to retain the cover on the shaft and provide a positive conduction of heat to the temperature sensing tip. For the purpose of selectively ejecting the cover after temperature measurement, the probe handle includes a movable ejec- tion button for manually driving the cover forwardly with sufficient force to disengage the cover from the tight engagement with the temperature sensing tip.

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