Abstract: Application systems, disposable interface assemblies and methods for cooling subcutaneous lipid-rich tissue. One embodiment of an application system includes a cooling unit, a cryoprotectant vessel, a contact member and an array of selectively addressable heating elements. The cryoprotectant vessel is configured to contain a fluidic cryoprotectant such that at least a portion of the cryoprotectant is cooled by the cooling unit to a desired base temperature. The contact member is attached to the cryoprotectant vessel and includes a backside in contact with the cryoprotectant and a front side opposite the backside. The contact member is configured to allow the cryoprotectant to flow from the backside to the front side. The array of selectively addressable heating elements is carried by the contact member.

Abstract: Application systems, disposable interface assemblies and methods for cooling subcutaneous lipid-rich tissue. One embodiment of an application system includes a cooling unit, a cryoprotectant vessel, a contact member and an array of selectively addressable heating elements. The cryoprotectant vessel is configured to contain a fluidic cryoprotectant such that at least a portion of the cryoprotectant is cooled by the cooling unit to a desired base temperature. The contact member is attached to the cryoprotectant vessel and includes a backside in contact with the cryoprotectant and a front side opposite the backside. The contact member is configured to allow the cryoprotectant to flow from the backside to the front side. The array of selectively addressable heating elements is carried by the contact member.

Abstract: Application systems, disposable interface assemblies and methods for cooling subcutaneous lipid-rich tissue. One embodiment of an application system includes a cooling unit, a cryoprotectant vessel, a contact member and an array of selectively addressable heating elements. The cryoprotectant vessel is configured to contain a fluidic cryoprotectant such that at least a portion of the cryoprotectant is cooled by the cooling unit to a desired base temperature. The contact member is attached to the cryoprotectant vessel and includes a backside in contact with the cryoprotectant and a front side opposite the backside. The contact member is configured to allow the cryoprotectant to flow from the backside to the front side. The array of selectively addressable heating elements is carried by the contact member.

Abstract: A composition or cryoprotectant for use with a system for improved cooling of subcutaneous lipid-rich tissue of a subject having skin is provided. The cryoprotectant is a non-freezing liquid, gel, or paste for allowing pre-cooling of a treatment device below about 0° C. while preventing the formation of ice thereon. The cryoprotectant may also prevent freezing of the treatment device to the skin and protect tissue of a subject from freezing damage due to, e.g., ice formation. The cryoprotectant can also include an authentication or anti-counterfeiting agent to authenticate an origin of the cryoprotectant, a lubricating agent to increase lubriciousness of the cryoprotectant, and a thixotropic or pseudoplastic agent in an amount effective substantially to render the gel dimensionally stable unless agitated.