Disposable single-use external dosimeters for detecting radiation in fluoroscopy and other medical procedures/therapies
First Claim
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1. A method for monitoring radiation exposure for a patient undergoing a medical procedure, comprising:
- releasably securing at least one single-use dosimeter sensor patch onto the skin of the patient, wherein the patch is self-contained;
exposing the patient to radiation in a medical procedure, wherein the at least one patch comprises a radiation sensor circuit having a MOSFET that is unpowered during radiation exposure;
transmitting data from the sensor patch to a dose-reader device after the exposing step to obtain data associated with a change in an operational parameter of the MOSFET in the dosimeter sensor patch; and
determining radiation received by the patient during the exposing step based on the change in the MOSFET operational parameter.
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Abstract
Methods, systems, devices, and computer program products include positioning single-use radiation sensor patches that have adhesive onto the skin of a patient to evaluate the radiation dose delivered during a medical procedure or treatment session. The sensor patches are configured to be relatively unobtrusive and operate during radiation without the use of externally extending power cords or lead wires.
187 Citations
53 Claims
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1. A method for monitoring radiation exposure for a patient undergoing a medical procedure, comprising:
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releasably securing at least one single-use dosimeter sensor patch onto the skin of the patient, wherein the patch is self-contained; exposing the patient to radiation in a medical procedure, wherein the at least one patch comprises a radiation sensor circuit having a MOSFET that is unpowered during radiation exposure; transmitting data from the sensor patch to a dose-reader device after the exposing step to obtain data associated with a change in an operational parameter of the MOSFET in the dosimeter sensor patch; and determining radiation received by the patient during the exposing step based on the change in the MOSFET operational parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for monitoring radiation administered to a patient during a diagnostic and/or therapeutic treatment, the system comprises:
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at least one single-use dosimeter patch, the patch comprising a substantially conformable body holding at least one radiation sensor circuit comprising a MOSFET having an associated threshold voltage that changes when exposed to radiation, and electronic memory having calibration data for determining radiation dose; and a portable dose-reader configured to obtain voltage threshold data from the at least one patch corresponding to a dose amount of radiation exposure received during irradiation exposure, wherein, during irradiation, the at least one patch has a perimeter that is devoid of outwardly extending lead wires and the MOSFET is unpowered. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method for monitoring radiation exposure of a patient, comprising:
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releasably securing at least one external surface mountable dosimeter to the patient, wherein the dosimeter is self-contained, and wherein the at least one dosimeter comprises at least one radiation sensor circuit having a MOSFET that has a voltage threshold value that changes in a predictable manner when unpowered in response to radiation exposure; exposing the patient to radiation associated with a medical procedure; electronically transmitting data from the dosimeter to a dose-reader device after the exposing step, the data associated with a change in the voltage threshold value of the MOSFET in the at least one dosimeter sensor circuit; and electronically determining radiation received by the patient during the exposing step based on the transmitted data. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46)
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47. A system for monitoring radiation administered to a patient, comprising:
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at least one surface mountable external dosimeter, the dosimeter comprising a generally circular body holding (a) at least one radiation sensor circuit comprising a MOSFET having an associated threshold voltage that changes when exposed to radiation and (b) electronic memory having calibration data for determining radiation dose, wherein, during exposure to radiation, the at least one dosimeter is self contained and has a perimeter that is devoid of outwardly extending lead wires; and a portable dose-reader configured to releasably engage a respective dosimeter after radiation exposure to obtain the calibration data and voltage threshold data from the at least one dosimeter. - View Dependent Claims (48, 49, 50, 51, 52, 53)
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Specification