Method and device for in vivo diagnosis detecting IR emission by body organ
First Claim
1. A method for in vivo monitoring of the condition of an internal body organ of a patient, comprising:
- detecting photons of electromagnetic radiation caused by the characteristic emission of free radicals from an organ of the patient; and
comparing the rate of said photon detection, signifying the rate of free radical emission, with the expected rate of free radical emission from a healthy organ.
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Accused Products
Abstract
A sensitive photon detector can be used for external detection in vivo of emission from a body organ, for instance of singlet oxygen emission in the near infrared at 1280 nm, for various purposes such as control of oxygenation of a patient. At such a wavelength bone and overlying tissue are sufficiently transparent to allow detection exteriorly of the body. Stray light and thermal emissions at this wavelength in a lit room are sufficiently low, or can otherwise be controlled, to allow detection of this singlet radiation by for instance a cooled Ge detector, to determine a rate of detected photons. Detection of this radiation can be taken for instance as indicating damage in process from over-oxygenation of a patient, allowing preventing and remedial measures to be taken in oxygen treatment. If a wavelength of interest is absorbed by overlying body tissues, insertion of an optical fiber leading to a detector, or of a detector itself, into the patient'"'"'s body via a cavity of the body or otherwise can be employed for getting sufficiently close to the organ of interest.
73 Citations
19 Claims
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1. A method for in vivo monitoring of the condition of an internal body organ of a patient, comprising:
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detecting photons of electromagnetic radiation caused by the characteristic emission of free radicals from an organ of the patient; and comparing the rate of said photon detection, signifying the rate of free radical emission, with the expected rate of free radical emission from a healthy organ. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for diagnosing or monitoring a diseased state in a patient which manifests itself in a manner which includes the characteristic emission of free radicals within an internal body organ of the patient, comprising:
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detecting photons of electromagnetic radiation caused by the characteristic emission of free radicals from an organ of the patient; and comparing the rate of said photon detection, signifying the rate of free radical emission, with the expected rate of free radical emission from a healthy organ. - View Dependent Claims (12, 13, 14, 15)
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16. A method for monitoring and controlling the administration of oxygen therapy to an oxygen deprived patient, comprising:
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detecting photons of electromagnetic radiation caused by the characteristic emission of singlet oxygen from an organ of the patient; and if an abnormal rate of photon detection occurs, signifying an abnormal rate of singlet oxygen emission, controlling the administration of oxygen therapy such that the singlet oxygen emissions return to normal. - View Dependent Claims (17, 18, 19)
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Specification