Importance

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Abstract

In a magnetic particle heating method for occlusion of the Fallopian tubes, biocompatible magnetic particles are delivered transcervically to the entrance of the Fallopian tube. Placement of the particles (e.g., magnetic nanoparticles) in the Fallopian tube is confirmed, and a coil is positioned about or proximate the patient's abdomen. Alternating current is applied to the coil to couple magnetic energy into the nanoparticles, heating the nanoparticles and causing thermal injury to the Fallopian tube. Temperature within the Fallopian tube may be monitored during heating, to prevent overheating, or alternating current may be applied for a predetermined treatment time, with or without temperature monitoring. Each Fallopian tube may be treated with nanoparticles and the two tubes heated simultaneously, or the tubes may be sequentially treated and heated. Treatment may be visualized via in-office hysteroscope, fluoroscopy or ultrasound. Thermal injury to the Fallopian tube mucosa occludes the tube and completes sterilization.

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First Claim