595 results about "Electronic thermometers" patented technology

An electronic clinical thermometer has a probe including a temperature sensor and a heat flux sensor which are controlled to make measurements at specified time intervals. The measured values are used in solving the equation of heat conduction to estimate the temperature of an internal body position. A heater may be included to preheat a body part in order to reduce the time required for measurement. The probe may use two temperature sensors to measure temperatures at two body surface positions through insulating members which are different in thermal conductivity.

An electronic thermometer that reduces patient exposure to all sources of cross-contamination, aids in infection control, and provides a clean, uncontaminated, readily accessible source of probe covers. A probe assembly for an electronic thermometer, which does not require expensive calibration procedures during manufacturing and allows the use of inexpensive thermisters. A memory component such as an EEPROM integrated circuit stores calibration information and identifying information in each particular probe assembly which improves performance and reduces manufacturing costs.

An electronic clinical thermometer has a probe including a variable-temperature heater and one or more temperature sensors and may also include a heat flux sensor. Physical variables such as temperature, time rate of change in temperature and/or heat flow rate are directly measured at positions on the surface of a patient while being heated by the heater through a thermally insulating member. Such measured values are used to solve a heat transfer equation rewritten as lower-order equations. Measurements may be controlled to be taken at a desired timing such as at specified intervals. The probe for contacting the patient's body may be planar or in an elongated bar-shape.

An electronic thermometer for measuring the temperature of a body, includes a probe having a heating element for preheating the probe to the approximate temperature of the body, and a temperature measuring element for measuring the precise temperature the body. The heating element is a relatively low-resistance thermistor having a positive temperature coefficient (PTC), and the temperature measuring element is a relatively high-resistance thermistor having a negative temperature coefficient (NTC).

An assembly method and structure of an electronic clinical thermometer is disclosed. The thermometer can be disassembled or assembled as required, wherein one of the detachable modules such as the measuring body has an incomplete electronic clinical thermometer circuit lacking at least two elements, and these electronic elements are mounted within the other module such as the measuring probe, so that the two modules when attached together form a complete clinical thermometer.

A system and method for preheating the thermometer probe of an electronic thermometer to a temperature closer to the temperature of the patient to be monitored. The system includes a thermometer probe that includes a heater, temperature sensor and proximity sensor, each coupled to a processor for controlling the operation of the electronic thermometer. The proximity sensor positioned within the thermometer probe generates a contact signal when the thermometer probe is positioned in close proximity to the patient. Upon receiving the contact signal, the processor disables the operation of the heater and begins the process of estimating the patient temperature. By utilizing a separate proximity sensor, the temperature of the probe tip can be elevated to the normal human body temperature, which allows the temperature estimation to be completed more rapidly and allows the thermometer to function at higher ambient temperature environments.

The invention provides a penetration coefficient determination apparatus for a permeable asphalt concrete track board test piece, and a test method thereof. The determination apparatus comprises a test device and a water supply device, and the test device comprises a workbench, an overflow water tank, an upper sleeve, a lower sleeve, two flanges, an electronic thermometer and a measuring cylinder; the outer sidewall of the upper sleeve is provided with water overflow ports connected with the inside of the upper sleeve, the two same flanges are provided with a ring of a slot, and the two flanges and the sleeve are cemented to form an integral body; the lower sleeve is connected through the overflow water tank, and the overflow water tank is provided with an overflow port and a water drainage port; the test piece is placed between the two flanges, a rubber sealing pad is arranged between each of the flanges and the test piece, the flanges are provided with screw holes, and the test piece is fixed through allowing long bolts to traverse through the screw holes and through using nuts; and the water supply device comprises a water storage barrel, a water pump and a power switch. The apparatus has the advantages of reasonable structure, simple operation, satisfactory solving of the seepage problem of the side wall, realization of flexible control of hydraulic gradient, and reasonable and reliable determination result.

An electronic thermometer has a probe that is used to receive heat from a subject such as a patient for measuring the temperature of the patient. The probe is particularly constructed for simplified, accurate and repeatable assembly of its various component parts.

The present invention provides an electronic body-temperature thermometer with high accuracy of temperature measurement in a short operating time. The electronic body-temperature thermometer uses a parameter of temperature rise status from measurement start until about 20 seconds in the initial stage to predict the equilibrium temperature. Such a parameter is used to calculate the time required from maximum of the gradient of temperature rise curve start to a certain constant value tau (e.g., 0.2), and to calculate the temperature gradient at a period between certain time and 5 seconds before using an equation of Delta5T(t)=T(t)-T(t-5), and then to calculate the predicted equilibrium temperature Tb(t) by using an equation of Tb(t)=AT(t)+BDelta5T(t)+Ctau+D .

The invention relates to a calibration method of an electronic thermometer and a device thereof. The calibration method comprises the following steps: a starting step; a clamping step for fixing and moving the electronic thermometer to be tested according to requirements; a temperature field monitoring step for monitoring whether temperature parameters of a standard calibration temperature field meet calibration requirements; an image acquisition step for acquiring display value image of the electronic thermometer to be tested by an image acquisition device; a value judgment step for processing images and identifying value according to value images, and judging errors of the value identification result and the standard value; an exception processing step for processing exceptions (for example, a mechanical device can not run) according to the requirement during the calibration process; and an ending step for ending calibration of a batch of the electronic thermometers. A calibration device of the electronic thermometer comprises at least one thermostatic calibration source, a controller module, a driver module, a mechanical execution device module, an image acquisition module and a calibration system software module.

Providing a probe for an electronic clinical thermometer, which can measure a surface temperature and a deep body temperature of a human body securely in short time, the probe includes a cylindrical housing, a bottomed metal pipe fitted into a top end of the cylindrical housing, and a substrate having two thin-film heat-sensitive elements arranged perpendicularly on an inner wall of the bottomed metal pipe so as to fix one side edge of the substrate tightly on the inner wall. By measuring heat flux between the two thin-film heat-sensitive elements, the surface and the deep body temperatures of the human body can be predicted by applying the measured values into a heat conduction equation without waiting the sensor to reach in heat balance.

The invention provides an electronic thermometer and a body temperature measurement method which can correctly measure core body temperature. An electronic thermometer (2) includes a first body surface temperature measurement portion (20A) and a second body surface temperature measurement portion (20B), a first reference temperature measurement portion (24A) and a second reference temperature measurement portion (24B), a third body surface temperature measurement portion (20C, 20D, 20E) to measure values at each position having a predetermined thermal resistance relative to a measurement a third temperature with a position different from the measurement positions of the first and second body surface values, a temperature correction portion (40) to correct a first body surface temperature, a first reference temperature, a second body surface temperature, and a second reference temperature by a third temperature; and a core body temperature calculation portion (42) to calculate a value of the object using the obtained corrected values of a first body surface temperature, a first reference temperature, a second body surface temperature, and a second reference temperature.

An integrated removable functional faceplate for a portable computer system. The removable functional faceplate employs specially located electrical contacts or pads that mate with similarly located electrical contacts mounted on the portable computer system, e.g., a personal digital assistant (PDA) or other electronic device. The electrical contacts of the functional faceplate carry signals that are responsive to the pressing of physical buttons which may be placed in any location on the functional faceplate. This allows individual faceplates to be developed that are specialized for a particular purpose, e.g., extended keyboards, adapted for gaming, adapted for music playing, etc. The functional faceplates may have specialized button types that are adapted for a particular use and are also located in custom positions that reflect the particular use employed. When the functional faceplate is removed from the portable computer system, it may have no buttons or it may provide a standard PDA button group. An identification circuit may be employed on the functional faceplate to indicate its button group and signaling characteristics. Alternatively, the functional faceplate may also include a data generation device, e.g., a global positioning system (GPS) or electronic thermometer, a music player, a smart card, etc. Alternatively, the functional faceplate may also include an auxiliary power supply.

The invention discloses an automatic verifying system of an electronic thermometer. Six thermostatic water tanks are embedded into a verifying platform in an annular equal distance way; a clamp frame, clamp frame stepping motors and cylinders are coaxially installed on the verifying platform in sequence; the cylinder is installed on a support platform; six disk-shaped clamps are annularly installed under the clamp frame in equal distance and can rotate around respective centers by the drive of the clamp stepping motors; all the stepping motors and the cylinders can be connected with a programmable logic controller and then connected with a superior computer; standard thermometers are arranged in all the thermostatic water tanks and sequentially connected with a measuring device and the superior computer; a CCD (Charge Coupled Device) camera and an illuminating light source are installed outside the upper part of the verifying platform, and the CCD camera is connected with the superior computer. The invention prevents frequent control temperature change, saves temperature control time, and integrally improves the verifying efficiency of the electronic thermometer by mounting an independent thermostatic field for each verifying temperature point of the electronic thermometer.

The invention discloses an automatic on-line verification system for electronic thermometers. Four thermostatic baths and two conveying belts are equidistantly disposed on six annular equipartition point centering on a control platform, an annular guide rail is mounted above the control platform, three load-bearing wheels are equidistantly mounted on three equipartition points on the outer side of the annular guide rail, support platforms, cylinders and the load-bearing wheels are coaxially mounted, a gear is mounted on the inner side of the annular guide rail and is coaxially mounted with a stepping motor, six mounting fixing parts are equidistantly arranged on the annular guide rail, a fixture frame is mounted on each fixing part, all motors and cylinders are connected with a PLC (programmable logic controller) and then connected with an upper computer, each thermostatic bath is internally provided with a standard thermometer which is sequentially connected with a secondary instrument and the upper computer, and a CCD (charge coupled device) camera connected with the upper computer and a light source are mounted on the outer side of each thermostatic bath. By the aid of design of the fixing parts and the fixture frames and arrangement of the conveying belts, verification efficiency of the thermometers is improved, and verification automation degree is also improved.

An electronic clinical thermometer has one of two temperature measuring devices each for measuring a live body temperature. A temperature estimating device estimates an equilibrium body temperature from a first data item related to change in temperature measured by the temperature measuring device during an initial period within a specified time such as about 20 seconds from the start of a measurement and a second data item related to change in temperature measured by the temperature measuring device after the initial period. If two temperature measuring devices are used, the first data item may related to the difference between temperatures measured by these two temperature measuring devices and the second data item may related to the time-rate of change in temperature measured by either of the two temperature measuring devices. The first data item may be a value obtained from the linear relationship between the temperature value measured by either of the two temperature measuring devices and the difference between them.