The present invention relates to surgical dissection tips comprising a substrate comprising beryllium copper and a ferromagnetic layer coating at least a portion of the substrate, and methods of making such surgical dissection tips.

Inducing hyperthermia in cancer cells. At least some of the example embodiments are methods including: charging a capacitor of a microchip device proximate to cells within the body, the charging by harvesting ambient energy by the microchip device; and when the energy on the capacitor reaches or exceeds a predetermined value inducing hyperthermia in the cells proximate to the microchip device using energy from the capacitor.

A device includes an electrically conductive or electrically semiconductive material and a biocompatible porous scaffold around the electrically conductive or electrically semiconductive material. The biocompatible porous scaffold includes a biocompatible polymer and pores configured to capture metastatic cells.

The present invention relates to surgical dissection tips comprising a substrate comprising beryllium copper and a ferromagnetic layer coating at least a portion of the substrate, and methods of making such surgical dissection tips.

A device for vaporizing a hole in tissue, including a vaporizing element, a heating element, configured to heat the vaporizing element, and a mechanism configured to advance the vaporizing element into a specific depth in the tissue and retract the vaporizing element from the tissue within a period of time long enough for the vaporizing element to vaporize the tissue and short enough to limit diffusion of heat beyond a predetermined collateral damage distance from the hole. Related apparatus and methods are also described.

A hemostatic sealer includes a handle having a switch to activate a source of thermal energy and a thermal assembly coupled to the handle. The thermal assembly includes an electrically resistive material disposed on an electrically insulative substrate. The resistive material is coupled to the switch to receive the source of thermal energy.

An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.

A hemostatic sealer includes a handle having a switch to activate a source of thermal energy and a thermal assembly coupled to the handle. The thermal assembly includes an electrically resistive material disposed on an electrically insulative substrate. The resistive material is coupled to the switch to receive the source of thermal energy.

A device includes an electrically conductive or electrically semiconductive material and a biocompatible porous scaffold around the electrically conductive or electrically semiconductive material. The biocompatible porous scaffold includes a biocompatible polymer and pores configured to capture metastatic cells.

A tumor ablation system includes a heating needle and a power supply device. The heating needle includes a rigid tubular shell. The heating needle further includes a heating element and a non-heating element; the heating element has at least one heating wire, a central cylindrical object and a distal part of the shell. The heating wire and the central cylindrical object are inside the shell. The heating wire is electrically coupled to the non-heating element, and coiled on the central cylindrical object. The distal part of the shell covers the coil formed by the heating wire on the central cylindrical object. When the heating wire is charged with electricity the heating wire generates thermal energy that is conducted to the distal part of the shell. The power supply device couples to the non-heating element, and provides electricity to the heating needle.