Combined methods for treating a patient using time-varying magnetic field are described. The treatment methods combine various approaches for aesthetic treatment. The methods are focused on enhancing a visual appearance of the patient.

A device for exchanging heat with a subject having skin is provided. The device includes a heat exchanging member having a heat transfer surface configured to form a heat conducting interface with the subject's skin. The device further includes a substantially flexible sensing device disposed in the interface between the heat exchanging member and the subject's skin. The sensing device is configured to measure a parameter of the interface without substantially impeding heat transfer between the heat exchanging member and the subject's skin.

A cryoprotectant for use with a treatment device for improved removal of heat from subcutaneous lipid-rich cells of a subject having skin is provided. The cryoprotectant is a non-freezing liquid, gel, or paste for allowing pre-cooling of the treatment device below 0 C. while preventing the formation of ice thereon. The cryoprotectant may also prevent freezing of the treatment device to the skin or ice from forming from moisture seeping out from the skin. The cryoprotectant may further be hygroscopic, thermally conductive, and biocompatible.

An apparatus for cooling tissue or a fluid for an elongate medical device comprising an elongate shaft extending along a longitudinal axis and comprising a shaft proximal end and a shaft distal end; a support structure located at the shaft distal end, where the support structure is expandable from a contracted state to an expanded state, and a plurality of thermoelectric elements, wherein the thermoelectric elements are located on the support structure. A medical device comprising a first catheter end shape, a second catheter end shape located distally with respect to the first catheter end shape, a support structure that extends between the first and the second catheter end shape, and a plurality of thermoelectric elements. A system for cooling a tissue or a fluid for an elongate medical device, comprising a plurality of thermoelectric elements, a thermocouple, an electronic control unit (ECU).

An example temperature-controlled system is described herein. The system can be used for delivering a thermoresponsive polymer to a treatment site, for example, during an RF ablation procedure. The system can include a syringe capable of maintaining the thermoresponsive polymer liquid at a temperature below its liquid-solid phase transition temperature.

A fluid cooling system for cooling a microwave antenna includes an energy source configured to supply microwave energy to a microwave antenna for ablating tissue, a fluid source, a centrifugal pump, and a cooling member coupled to the centrifugal pump and configured to contact the tube to cool fluid flowing through the tube.

Combined methods for treating a patient using time-varying magnetic field are described. The treatment methods combine various approaches for aesthetic treatment. The methods are focused on enhancing a visual appearance of the patient.

This specification describes a tissue ablation apparatus comprising a catheter configured to enter an internal region of a subject's body, and a cooling device configured to cool internal tissue to a desired temperature of between 15 degrees C. and +15 degrees C.

The present invention relates generally to surgical lasers and more specifically to a laser beam control and delivery system that accurately and efficiently directs a laser beam into an optical fiber. The laser beam control and delivery system also provides additional functions, including a connection for a fiber tip temperature control system and a tissue temperature sensing system. The present invention also relates to a surgical laser system that has a high efficiency thermoelectric cooling system.

A fluid cooling system for cooling a microwave antenna includes an energy source configured to supply microwave energy to a microwave antenna for ablating tissue, a fluid source, a centrifugal pump, and a cooling member coupled to the centrifugal pump and configured to contact the tube to cool fluid flowing through the tube.