Patents by Inventor Francesco Pompei

Francesco Pompei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6299347
    Abstract: A body temperature detector is particularly suited to axillary temperature measurements of adults. The radiation sensor views a target surface area of the body and electronics compute an internal temperature of the body as a function of ambient temperature and sensed surface temperature. The function includes a weighted difference of surface temperature and ambient temperature, the weighting being varied with target temperature to account for varying perfusion rate. Preferably, the coefficient varies from a normal of about 0.13 through a range to include 0.09. The ambient temperature used in the function is assumed at about 80° F. but modified with detector temperature weighted by 20%.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: October 9, 2001
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Publication number: 20010027274
    Abstract: Tympanic temperature measurements are obtained from the output of a radiation sensor mounted in an extension from a housing. The housing has a temperature display and supports electronics for responding to sensed radiation. The sensor is mounted in an improved extension which is shaped to fit into smaller ear canals, such as a child's ear canal or a swollen adult ear canal. Within the extension, the sensor is positioned in a highly conductive environment and receives radiation from an external target through a tube. Electronics determine the target temperature based on the sensor output signal and a temperature sensor signal.
    Type: Application
    Filed: March 14, 2001
    Publication date: October 4, 2001
    Applicant: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 6292685
    Abstract: Body temperature measurements are obtained by scanning a thermal radiation sensor across the side of the forehead over the temporal artery. A peak temperature measurement is processed to compute an internal temperature of the body as a function of ambient temperature and the sensed surface temperature. The function includes a weighted difference of surface temperature and ambient temperature, the weighting being varied with target temperature through a minimum in the range of 96° F. and 100° F. The radiation sensor views the target surface through an emissivity compensating cup which is spaced from the skin by a circular lip of low thermal conductivity.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: September 18, 2001
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Publication number: 20010019574
    Abstract: A radiation detector for axillary temperature measurement comprises a wand having an axially directed radiation sensor at one end and an offset handle at the opposite end. The radiation sensor is mounted within a heat sink and retained by an elastomer in compression. The radiation sensor views a target surface through an emissivity compensating cup and a plastic film. A variable reference is applied to a radiation sensor and amplifier circuit in order to maintain full analog-to-digital converter resolution over design ranges of target and sensor temperature with the sensor temperature either above or below target temperature.
    Type: Application
    Filed: March 23, 2001
    Publication date: September 6, 2001
    Applicant: Exergen Corp
    Inventors: Francesco Pompei, Janus Ternullo
  • Patent number: 6245094
    Abstract: A patient's body temperature is regulated by using an enclosure to enclose a portion of the patient's body in an isolated environment. In accordance with one embodiment, the patient's entire body below his head is enclosed. Once enclosed, the patient is surrounded by heated vapor that is injected into the enclosure. The heated vapor condenses on the patient's skin to warm the patient quickly, efficiently and safely. This embodiment is well suited for the treatment of hypothermia patients. In accordance with alternative embodiments, only a portion of the patient's head is enclosed. In these embodiments, an enclosure is placed on the patient's head, and heated vapor is fed into the enclosure. Excess air and vapor are preferably dissipated by vents in the cap, whereas excess condensate is preferably absorbed by an absorbent layer provided in the cap. These embodiments are well suited for regulating a patient's body temperature in a surgical setting.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: June 12, 2001
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 6241384
    Abstract: A radiation detector for axillary temperature measurement comprises a wand having an axially directed radiation sensor at one end and an offset handle at the opposite end. The radiation sensor is mounted within a heat sink and retained by an elastomer in compression. The radiation sensor views a target surface through an emissivity compensating cup and a plastic film. A variable reference is applied to a radiation sensor and amplifier circuit in order to maintain full analog-to-digital converter resolution over design ranges of target and sensor temperature with the sensor temperature either above or below target temperature.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: June 5, 2001
    Assignee: Exergen Corporation
    Inventors: Francesco Pompei, Janus Ternullo
  • Patent number: 6219573
    Abstract: Tympanic temperature measurements are obtained from the output of a radiation sensor mounted in an extension from a housing. The housing has a temperature display and supports electronics for responding to sensed radiation. The sensor is mounted in an improved extension which is shaped to fit into smaller ear canals, such as a child's ear canal or a swollen adult ear canal. Within the extension, the sensor is positioned in a highly conductive environment and receives radiation from an external target through a tube. Electronics determine the target temperature based on the sensor output signal and a temperature sensor signal.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: April 17, 2001
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 6100527
    Abstract: A thermally differentiable pattern such as hot melt adhesive is monitored in a production line system. An electrical output from a thermopile radiation sensor is applied to a detection circuit which processes the sensor electrical output to perform an inverse to the sensor transfer function and to perform a differentiation which provides a pulsed output at rising and falling edges of the sensor signal. Comparators provide respective output pulse signals representing the respective rising and falling edges. An adjustable amplifier in the circuit adjusts pulse threshold relative to sensed radiation.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: August 8, 2000
    Assignee: Exergen Corporation
    Inventors: Francesco Pompei, Janus Ternullo
  • Patent number: 6056435
    Abstract: A body temperature detector is particularly suited to axillary temperature measurements of adults. The radiation sensor views a target surface area of the body and electronics compute an internal temperature of the body as a function of ambient temperature and sensed surface temperature. The function includes a weighted difference of surface temperature and ambient temperature, the weighting being varied with target temperature to account for varying perfusion rate. Preferably, the coefficient varies from a normal of about 0.13 through a range to include 0.09. The ambient temperature used in the function is assumed at about 80.degree. F. but modified with detector temperature weighted by 20%.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: May 2, 2000
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 6048093
    Abstract: An infrared detector is positioned in a probe having leads which connect to a standard hand-held voltmeter. The detected voltage may indicate the difference between a target temperature surface and ambient temperature. For more accurate sensing of ambient temperature, a thermocouple may be connected in series with the thermopile with one junction at the thermopile cold junction temperature and another junction sensing ambient temperature. The ambient temperature may be that temperature surrounding the infrared detector or the temperature of the environment surrounding the meter. The infrared detector may be calibrated to provide a direct reading of temperature degrees by a factor of ten on the voltage scale of the meter. To that end, multiple thermocouples may be connected in series, each with a junction responding to ambient temperature and a junction responding to thermopile cold junction temperature.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: April 11, 2000
    Assignee: Exergren Corporation
    Inventor: Francesco Pompei
  • Patent number: 6045257
    Abstract: A radiation detector for axillary temperature measurement comprises a wand having an axially directed radiation sensor at one end and an offset handle at the opposite end. The radiation sensor is mounted within a heat sink and retained by an elastomer in compression. The radiation sensor views a target surface through an emissivity compensating cup and a plastic film. A variable reference is applied to a radiation sensor and amplifier circuit in order to maintain full analog-to-digital converter resolution over design ranges of target and sensor temperature with the sensor temperature either above or below target temperature.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: April 4, 2000
    Assignee: Exergen Corporation
    Inventors: Francesco Pompei, Janus Ternullo
  • Patent number: 6047205
    Abstract: Tympanic temperature measurements are obtained from the output of a radiation sensor mounted in an extension from a housing. The housing has a temperature display and supports electronics for responding to sensed radiation. The sensor is mounted in an improved extension which is shaped to fit into smaller ear canals, such as a child's ear canal or a swollen adult ear canal. Within the extension, the sensor is positioned in a highly conductive environment and receives radiation from an external target through a tube. Electronics determine the target temperature based on the sensor output signal and a temperature sensor signal.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: April 4, 2000
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 5894126
    Abstract: A thermally differentiable pattern such as hot melt adhesive is monitored in a production line system. An electrical output from a thermopile radiation sensor is applied to a detection circuit which processes the sensor electrical output to perform an inverse to the sensor transfer function and to perform a differentiation which provides a pulsed output at rising and falling edges of the sensor signal. Comparators provide respective output pulse signals representing the respective rising and falling edges. An adjustable amplifier in the circuit adjusts pulse threshold relative to sensed radiation.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: April 13, 1999
    Assignee: Exergen Corporation
    Inventors: Francesco Pompei, Janus Ternullo
  • Patent number: 5893833
    Abstract: An infrared detector has a probe having curved surfaces which slide readily into a neonate axilla. The probe is covered by a disposable cover, or a bag completely encloses the infrared detector. The bag has a pleated end surface, through which the detector views the skin, and a flap at a rear surface to close an opening which receives the detector.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 13, 1999
    Assignee: Exergen Corporation
    Inventors: Francesco Pompei, Marybeth A. Pompei
  • Patent number: 5873833
    Abstract: A radiation detector comprises an extension shaped to be comfortably positioned in an outer ear area for obtaining temperature indications without discomfort to the subject. The extension increases non-linearly in diameter along a portion of its distal end forming a rounded distal tip. The extension is positioned in an ear canal such that the rounded tip is disposed at the opening to the ear canal. An infrared radiation sensor is positioned in the detector for receiving radiation emitted from the ear canal. An electronics unit converts the received radiation to a temperature indication.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: February 23, 1999
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 5874736
    Abstract: A radiation detector for axillary temperature measurement comprises a wand having an axially directed radiation sensor at one end and an offset handle at the opposite end. The radiation sensor is mounted within a heat sink and retained by an elastomer in compression. The radiation sensor views a target surface through an emissivity compensating cup and a plastic film. A variable reference is applied to a radiation sensor and amplifier circuit in order to maintain full analog-to-digital converter resolution over design ranges of target and sensor temperature with the sensor temperature either above or below target temperature.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: February 23, 1999
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 5872362
    Abstract: A radiation detector employs a thermopile having a potentiometer for scaling the thermopile output to best suit a particular output meter and sensing application. The output of the thermopile is scaled to approximate the output of a thermocouple in contact with a target surface and is indicative of the temperature of the target. Two detectors may be connected differentially to provide a differential output indicative of the temperature difference between two targets. Additionally, a temperature dependent variable resistor may be coupled to the thermopile, providing a variable resistance that combines with the thermopile output response to produce a linearized thermopile output response. Then, the total output signal of the detector for a particular target temperature is independent of fluctuations in local temperature.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: February 16, 1999
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 5836692
    Abstract: An infrared detector is positioned in a probe having nonthermocouple leads which connect to socket connectors of a standard hand-held voltmeter. The voltmeter has a clip to retain the probe. The detected voltage may indicate the difference between a target temperature surface and ambient temperature. For more accurate sensing of ambient temperature, a thermocouple may be connected in series with the thermopile with one junction at the thermopile cold junction temperature and another junction sensing ambient temperature. The ambient temperature may be that temperature surrounding the infrared detector or the temperature of the environment surrounding the meter. The infrared detector is calibrated to provide a direct reading of temperature degrees by a factor of ten on the voltage scale of the meter. To that end, multiple thermocouples may be connected in series, each with a junction responding to ambient temperature and a junction responding to thermopile cold junction temperature.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: November 17, 1998
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 5803604
    Abstract: A loop transmitter is connected between a thermocouple and a loop detector circuit. The transmitter has a circuit mounted on an elongated circuit board within a cylindrical housing with thermocouple leads and output leads extending from opposite ends of the cylinder. The circuit is potted in high conductivity epoxy, with an adjustment screw left exposed. After amplifier offset adjustment, the housing is completely filled with a lower conductivity epoxy.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: September 8, 1998
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 5764684
    Abstract: The output stability of an infrared thermocouple is improved by filtering the radiation received by the infrared thermocouple to pass only short wavelengths. The stability is further increased by providing a second infrared thermocouple having its input filtered to pass long wavelengths. The two outputs are combined to obtain an output signal which is substantially independent of emissivity. The linear range of an infrared detector through which its output closely follows that of a linear thermocouple is increased by a calibration method in which an initial offset is provided to a readout device. Calibration of the infrared detector is completed using an adjustable potentiometer. By providing removable apertures, the temperature range through which an infrared thermocouple may be used is extended. Elongated targets are efficiently viewed by an infrared thermocouple having an elongated thermopile flake and an imaging lens.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: June 9, 1998
    Assignee: Exergen Corporation
    Inventor: Francesco Pompei