A cryoablation temperature control method, system and computer-readable storage medium. The method is used to control a temperature of the interior of a cryoablation balloon and includes: generating, based on an acquired real-time temperature value and a preset target temperature value of the interior of the balloon and/or a real-time gas flow rate value and a target gas flow rate value of a gas recovery passage in a gas outlet channel for the balloon, a first target liquid inlet pressure control signal for controlling a liquid supply flow rate of a high-pressure proportional valve in a liquid supply channel for the balloon; generating, based on an acquired real-time gas pressure value on, and a preset target gas pressure value for, a gas outlet side of the balloon, a first target gas outlet pressure control signal for controlling a gas outlet flow rate of a low-pressure proportional valve in the gas outlet channel for the balloon and for coordinating with the first target liquid inlet pressure control signal to perform control so that a pressure in the interior of the balloon is within a predefined safe pressure threshold value range and the temperature of the interior of the balloon is brought to and/or maintained at the target temperature value. This application allows accurate temperature control within a wide range and a short procedure time.

Embodiments of present disclosure relates to method and device for controlled emission of radiation. Device comprises probe unit, sensor unit and switch unit. Probe unit is configured to emit radiation on surface of object. Probe unit is supported, via an elastic, to supporting structure of device. Sensor unit is placed at predefined distance from probe unit, along supporting structure, to establish contact with surface. Sensor unit comprises flexible material, mounted to supporting structure, with cavity and first force sensing unit placed in cavity of flexible material. First force sensing unit is configured to detect first force transferred from surface sensor unit. Switch unit is configured to control emission of radiation on surface, based on first force detected by first force sensing unit, upon contact of sensor unit with surface and identification of probe unit to be one of in contact with surface or at minimal distance from surface.

A surgical stapling system including a shaft assembly transmits actuation motions from an actuator and an end effector compresses and staples tissue. The end effector comprises an elongated channel; an anvil having a staple forming surface is moveable relative to the elongated channel between an open position and a closed position; and a staple cartridge removably positioned within the elongated channel. The staple cartridge comprises a body having a tissue contacting surface in a confronting relationship with the staple forming surface; a plurality of staple drivers within the cartridge body each supporting a staple; and a tissue thickness compensator positionable between the anvil and the cartridge, the tissue thickness compensator is captured by the staples and assumes different compressed heights within the different staples. The tissue compensator comprises first conductive elements. The system determines properties of tissue compressed between the anvil and the cartridge.

The invention is a system for monitoring and controlling tissue ablation. The system includes a controller configured to selectively control energy emission from an electrode array of an ablation device based on ablation feedback received during an ablation procedure with the ablation device. The controller is configured to receive feedback data from one or more sensors during the ablation procedure, the feedback data comprising one or more measurements associated with at least one of operation of the electrode array of the ablation device and tissue adjacent to the electrode array. The controller is further configured to generate an ablation pattern for controlling energy emission from the electrode array of the ablation device in response to the received feedback data.

A system for the recovery of expanded refrigerant from a cryotreatment system for storage and disposal may generally include first fluid flow path having a first compressor and a fluid recovery reservoir, and a closed-loop second fluid flow path having a thermal exchange device that is in thermal communication with the fluid recovery reservoir, a second compressor, and a condenser. The first fluid flow path may include a primary refrigerant from a cryotreatment system and the closed-loop second fluid flow path may contain a secondary refrigerant for cooling the primary refrigerant within the fluid recovery reservoir. The refrigerant recovery conduit may be in fluid communication with both the cryotreatment system and a medical facility scavenging system. The refrigerant recovery conduit and the cryotreatment system may be located within the same cryotreatment console.

An end effector assembly adapted to couple to an electrosurgical instrument, the end effector assembly including a pair of opposing jaw members pivotably attached about a pivot member and moveable from a first spaced position to a second grasping position. Each jaw member includes a jaw housing and a seal plate formed on an inner surface of the jaw member including at least two seal plate segments extending along a substantial portion of the length of the jaw members. An insulating member is positioned between adjacent seal plate segments and configured to provide electrical isolation between adjacent seal plate segments. Each sealing plate segment is adapted to selectively connect to an electrosurgical energy source and form part of an electrosurgical energy delivery circuit.

A medical device including an evaluation unit and an electrode line. The electrode line includes at least one temperature sensor. The temperature sensor delivers a temperature signal to the evaluation unit. The evaluation unit evaluates periodic fluctuations of a signal level of the temperature signal and generates an evaluation output signal qualifying constant wall touching of the electrode line according to whether periodic fluctuations of a signal level of the temperature signal lie below or above a predetermined limit value.

A method of improving efficiency of an electrosurgical generator is presented, the method including controlling an output of an electrosurgical generator by converting a direct current (DC) to an alternating current (AC) using an inverter, and sensing a current and a voltage at an output of the inverter. The method further includes the steps of determining a power level based on the sensed voltage and the sensed current, determining an efficiency of the electrosurgical generator, and inserting a predetermined integer number of off cycles when the efficiency of the electrosurgical generator reaches a threshold power efficiency.

An electrosurgical device is disclosed. The electrosurgical device includes a handle, a shaft extending distally from the handle, and an end effector coupled to a distal end of the shaft. The end effector comprises a first electrode and a second electrode. The second electrode includes a first position and a second position. The second electrode is configured to move from the first position to the second position when a force is applied to the end effector by a tissue section. The first electrode and the second electrode define a treatment area when the second electrode is in the second position.

Apparatus, systems, and methods for achieving thermally-induced renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver a thermal element to a renal artery via an intravascular path. Thermally-induced renal neuromodulation may be achieved via direct and/or via indirect application of thermal energy to heat or cool neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.