U.S. patent application 20200038600 (applicant Insuline Medical Ltd., Jerusalem, Israel):
"A drug delivery control apparatus (e.g. a treatment apparatus) may be configured to control an amount of drug contained in a drug depot delivered or otherwise perfused or diffused into the circulatory system of a patient comprising a cooling element configured for cooling a treatment area by removing heat from the treatment area. The cooling element may be arranged above or near the treatment area. A heat disposal assembly is in thermal communication with the cooling element and configured for directing the removed heat to a heat zone away from the treatment area. A power source, a controller and a housing may be configured to at least partially house at least the cooling element and the heat disposal assembly. ... the heat disposal assembly comprises a phase change material configured to absorb at least some heat from the treatment area."
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