Cryoprobe for magnetic resonance imaging

CRYOPROBE FOR MAGNETIC RESONANCE IMAGING A cryoprobe is disclosed comprising a probe shaft made of a low magnetic susceptibility material and an electrical resistance heater comprising counter-wound helical coils located within the probe shaft. The counter-wound helical coils are formed by a single...

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Bibliographic Details
Main Authors TRUMER, Dror, RAMADHYANI, Satish, CHERNIHOVSKY, Oleg, ZACHMAN, Andrew Kevin, KOLLMANN, Daniel
Format Patent
LanguageEnglish
Published 09.12.2021
Subjects
BASIC ELECTRIC ELEMENTS
DIAGNOSIS
ELECTRICITY
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
INDUCTANCES
MAGNETS
MEDICAL OR VETERINARY SCIENCE
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SURGERY
TRANSFORMERS
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Summary:CRYOPROBE FOR MAGNETIC RESONANCE IMAGING A cryoprobe is disclosed comprising a probe shaft made of a low magnetic susceptibility material and an electrical resistance heater comprising counter-wound helical coils located within the probe shaft. The counter-wound helical coils are formed by a single wire counter-wound to form a first set of coils wound in a direction counter to a second set of coils, such that when current is supplied to the electrical resistance heater, a first magnetic field generated by the first set of coils is opposite to a second magnetic field generated by the second set of coils. The electrical resistance heater can heat, thaw, and/ or cauterize tissue. The electrical resistance heater can be made of a low magnetic susceptibility material so as to resistively heat tissue concurrently during magnetic resonance imaging (MRI). A method of electrically heating a tissue in conjunction with MRI, and a method of imaging a cryoprobe using MRI is also disclosed.
Bibliography:Application Number: AU20210266350