Medical thermometer
AssigneeMicrolife Intellectual Property GmbH
InventorYung Ku Lee
Life of this patent
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Abstract
A medical thermometer for measuring the temperature of a patient comprises a metal tip (2) with an outer contact surface (3) for contacting the tissue of a patient. A temperature sensor (4) mounted within the metal tip (2) is used to produce a signal which represents the temperature of the metal tip (2). The temperature is displayed on a display (5). The metal tip surrounds a substantially hollow cavity (8) and is of a length (L) which is at least three times, preferably five times larger than the diameter of the metal tip (2). The metal tip (2) is free from additional heating means.
Claims10
A medical thermometer for measuring the temperature of a patient comprising
- a metal tip having an outer contact surface adapted to be brought into contact with a patient's tissue, and
- a temperature sensor, mounted within the metal tip, able and adapted to generate a signal representing the temperature of the metal tip
- wherein the metal tip surrounds a substantially hollow cavity being filled with air or with a gas and/or a material having a thermal capacity comparable to or less than the thermal capacity of air,
- wherein the metal tip comprises a substantially tubular section and a closed end
- wherein the temperature sensor is arranged within the closed end,
- wherein the ratio of the length of the contact surface to the diameter of the metal tip is of at least three, preferably of at least five,
- and wherein the thermometer is free from additional heating means for eliminating the heat flow from the temperature sensor to the remaining probe body.
Dependencies are inferred from the claim text.