摘要:
A mono-stable self-aligning template for installing brackets and treatments around an opening has a first plate having a top surface, a bottom surface, a front edge, a rear edge and a pair of opposing side edges. A plurality of openings is formed through the top surface of the first plate. The plurality of openings is arranged in at least a first array on a first side area on the top surface of the first plate. A mono-stable self-alignment device is coupled to the first plate. The mono-stable self-alignment device is perpendicular to the first plate.
摘要:
Circuitry for use in a hand-held electronic probe for passing high frequency current through malignant eye tissue of livestock or other tissue such as warts includes a thermistor in a probe tip that contacts the tissue, producing a voltage that controls a voltage controlled oscillator which drives an audio transducer. If, during treatment, the probe tip is held against the malignant tissue with sufficient force, the pitch of a sound emitted by the audio transducer steadily increases, indicating to the user that proper pressure is being maintained to ensure heating of the tissue to the desired treatment temperature. The circuitry then causes the transducer to emit periodic beeping signals which the user can count to ensure that the tissue is maintained in a desired elevated temperature range for a desired amount of time. Circuitry responsive to the temperature sensor varies the duty cycle of the high frequency current applied to the tissue to maintain the elevated temeperature thereof within a predetermined range. Initially, the high frequency current is applied at a substantially reduced duty cycle to prevent excessive temperature lag between the tissue and the probe tip to prevent initial temperature overshoot of the tissue before the thermistor and circuitry can respond to reduce the duty cycle.
摘要:
Circuitry for use in a hand-held electronic probe for passing high frequency current through malignant eye tissue of livestock or other tissue such as warts includes a thermistor in a probe tip that contacts the tissue, producing a voltage that controls a voltage controlled oscillator which drives an audio transducer. If, during treatment, the probe tip is held against the malignant tissue with sufficient force, the pitch of a sound emitted by the audio transducer steadily increases, indicating to the user that proper pressure is being maintained to ensure heating of the tissue to the desired treatment temperature. The cicuitry then causes the transducer to emit periodic beeping signals which the user can count to ensure that the tissue is maintained in a desired elevated temperature range for a desired amount of time. Circuitry responsive to the temperature sensor varies the duty cycle of the high frequency current applied to the tissue to maintain the elevated temperature thereof within a predetermined range. Initially, the high frequency current is applied at a substantially reduced duty cycle to prevent excessive temperature lag between the tissue and the probe tip to prevent initial temperature overshoot of the tissue before the thermistor and circuitry can respond to reduce the duty cycle.
摘要:
An electronic system for selectively measuring predetermined athletic parameters, such as reaction time and impact energy, and for displaying the results of the measurements is disclosed. The system includes transducer apparatus for sensing a participant's athletic reaction or motion, a selectively actuable timing circuitry responsive to initiation for providing after a pseudo-random delay a start signal to which the participant is to respond, and logic circuitry responsive to the transducer output. The timing circuit utilizes information provided by the logic circuitry and provides outputs indicative of predetermined parameters of the participant's motion or reaction time. The disclosed system further includes display apparatus responsive to the timing circuit outputs for displaying indicia of the measured parameters.
摘要:
Systems and methods are disclosed to control the temperature of an RF hyperthermia system with minimum overshoot and to improve safety by, among other things, detecting a defective temperature sensor. Temperature overshoot may be minimized by compensating for the short-term temperature difference between the area being treated and the applicator delivering the RF energy. The RF energy may heat the tissue and then the tissue may transfer heat to the applicator sensor. The system may also adapt to various applicator sizes and shapes by modifying control loop coefficients based on initial probe response.