An auxiliary power supply device in which an increase in the size of an entire system including both an auxiliary power supply circuit unit and a sub-power supply circuit unit is able to be curbed is provided. There is provided an auxiliary power supply device configured to be connected to a power supply device, the auxiliary power supply device including: an auxiliary power supply circuit unit configured to supply electric power to the power supply device in a case in which supply of electric power to the power supply device is shut off; and a sub-power supply circuit unit having an input side connected to the power supply device and an output side connected to a load and configured to supply an output voltage to other circuit units in accordance with electric power supplied from the power supply device.

A forceps includes a handle, a shaft having a proximal end coupled to the handle, and an end effector assembly coupled to a distal end of the shaft. The forceps includes a first jaw member and a second jaw member for grasping tissue therebetween. One or both of the first and second jaw members may include one or more needles extending therefrom. The one or more needles are in fluid communication with a fluid conduit extending along one or both of the first and second jaw members. The fluid conduit couples to a source of contrast agent to enable selective delivery of the contrast agent through the one or more needles.

A self-contained, battery powered transseptal crossing system is disclosed. An elongate, flexible electrically conductive needle body has a proximal end and a distal end. An insulation layer surrounds the sidewall and leaves exposed a distal electrode tip. A generator is configured to deliver RF energy to the electrode tip, and includes a processor configured to take impedance measurements at the tip to confirm contact with the intra atrial septum and/or confirm entry into the left atrium.

An electrosurgical ablation device provides pulse width modulated DC power to a heating segment in a catheter for use in providing treatment. In some embodiments the DC power to be modulated is sourced from an AC/DC power converter coupled to a source of AC power. In some embodiments the DC power to be modulated is sourced from a battery. In some embodiments the device switchably selects for modulation DC power sourced from either the AC/DC power converter or the battery, for example based on availability of power from the AC/DC power converter.

A method of operating a modular surgical system including a control module, a first surgical module, and a second surgical module is disclosed. The method includes detachably connecting the first surgical module to the control module by stacking the first surgical module with the control module in a stack configuration, detachably connecting the second surgical module to the first surgical module by stacking the second surgical module with the control module and the first surgical module in the stack configuration, powering up the modular surgical system, and monitoring distribution of power from a power supply of the control module to the first surgical module and the second surgical module.

A battery assembly includes a battery pack configured to supply energy to a load having a required energy, a housing enclosing the battery pack therein, a converter configured to convert an internal energy of the battery pack, and a controller configured to adjust a parameter of the converter based on information received from the load via a communication interface such that the converter converts the internal energy to the energy required by the load, wherein the converted internal energy is supplied to the load as the supplied energy.

A self-contained, battery powered transseptal crossing system is disclosed. An elongate, flexible electrically conductive needle body has a proximal end and a distal end. An insulation layer surrounds the sidewall and leaves exposed a distal electrode tip. A generator is configured to deliver RF energy to the electrode tip, and includes a processos configured to take impedance measurements at the tip to confirm contact with the intra atrial septum and / or confirm entry into the left atrium.

Disclosed is a surgical system for tissue treatment using therapeutic energy and stapling.

Tumor treating fields (TTFields) can be delivered by implanting a plurality of sets of implantable electrode elements within a person's body. Temperature sensors positioned to measure the temperature at the electrode elements are also implanted, along with a circuit that collects temperature measurements from the temperature sensors. In some embodiments, an AC voltage generator configured to apply an AC voltage across the plurality of sets of electrode elements is also implanted within the person's body.

A power supply unit for a direct-current galvanic electrolysis device has a housing configured to be held in a hand of a patient and having a conductive outer surface forming a first electrode that is adapted to make electrical contact with the hand of the patient while the housing is being held. In addition, the power supply unit has an electrical power source, an electrical connector supported for detachably coupling to a second electrode in the form of a needle handpiece, a regulating circuit coupled to the power source and having positive and negative output nodes. The regulating circuit positive output node is electrically coupled to the first electrode and the negative output node is electrically coupled to the connector and thereby, in use, to the second electrode of the needle handpiece.