A pressure regulation system for discharging a liquid having a predetermined liquid pressure from a liquid opening, including an elastic bag having a liquid phase and a gas phase, where the liquid opening in an operational position of the elastic bag is formed in the lower area of the elastic bag, at least two push elements, at least one drive unit and a control unit. The elastic bag has a gas opening, which extends into the gas phase. The pressure regulation system has a ventilation unit, which is connected to the control unit for communication and which connects to the gas opening of the elastic bag. The ventilation unit regulates the liquid pressure of the liquid discharged through the liquid opening by means of a gas supply into the elastic bag and/or a gas discharge from the elastic bag.

A pump with a controller for adjusting head pressure using a pressure boost is provided. The pressure boost may be dynamically adjusted during a surgical procedure based on the device being used and inflow and/or outflow settings.

The invention is directed to an ophthalmosurgical system which includes a console for accommodating an irrigation fluid vessel containing irrigation fluid and a cassette, insertable into the console, for directing the irrigation fluid to a surgical instrument for an eye to be treated. An irrigation fluid flow path leads from the irrigation fluid vessel to the cassette and to the surgical instrument. A first fluid pump includes a first pump chamber having a first volume and a first drive chamber separated therefrom by a first elastic partition and having a second volume. A second fluid pump is arranged in parallel to the first fluid pump and includes a second pump chamber having a third volume and a second drive chamber separated therefrom by a second elastic partition and having a fourth volume. The first volume or the third volume has a magnitude within the range from 1 to 25 cm.sup.3.

Disclosed is a system for providing artificial saliva. The system can include the mouthpiece, a portable supply unit, and a stationary supply unit. The portable supply unit can be adapted to be carried by a user. The portable supply unit can include a first fluid system, a first interface module, and a first control module. The first fluid system can be adapted to fluidly couple to the mouthpiece.

Aspects of the present disclosure are presented for a single surgical instrument configured for performing sealing procedures on tissues using electrosurgical or ultrasonic energy, irrigating tissue at the sealing site, and evacuating material from the sealing site. An end effector of the surgical instrument may include multiple members arranged in various configurations to collectively perform the aforementioned functions. The evacuation and irrigation elements may comprise one or more fluid paths configured to remove material from or deliver fluid to a surgical field. The instrument may include electrical and mechanical aspects that may be used to control the evacuation and irrigation functions. In this way, a user may use a single surgical instrument to perform these tasks during a tissue sealing procedure.

Ophthalmic surgical devices, systems, and methods for regulating aspiration from a patient's eye are provided. A vacuum pump in fluid communication with an aspiration line provides fluid aspiration from a vitreous chamber of the eye through the aspiration line. A sensor disposed adjacent to or inside the eye determines sensor data relating to an intraocular pressure (IOP). The controller receives the sensor data and regulates the aspiration in response to changes in the TOP, such as by controlling the vacuum pump. The controller may determine whether a fluid infusion to the vitreous chamber through an infusion line is below a maximum infusion level, regulate the infusion in response to the TOP being below a threshold value and the infusion being below the maximum infusion level, and regulate the aspiration in response to the TOP being below the threshold value and the infusion being at or above the maximum infusion level.

An anal irrigation kit provides an improved approach for emptying a bowel by instilling irrigation liquid and stimulating the rectal wall simultaneously. The anal irrigation kit includes an irrigation liquid reservoir, a hand pump, and a soft flow manifold, which can be folded for insertion into a rectum.

An irrigation system for providing a continuous and controlled flow of a fluid, wherein said irrigation system may include a reservoir system comprising a plurality of containers of fluid that are disposed in a predetermined radial configuration; said reservoir system has a main longitudinal axis; and a fluid transfer system in fluid connection with said reservoir system, said fluid transfer system comprising at least one fluid transfer head, adapted to transfer fluid from one of said plurality of containers to an external tubing system; wherein each of said fluid transfer heads has a mechanism adapted to radially move each of said fluid transfer heads around the main longitudinal axis and reach a position below each of the plurality of containers.

Ablation systems and methods of the present disclosure include a catheter including one or more image sensors. The one or more image sensors can facilitate, for example, positioning an ablation electrode at a treatment site of an anatomic structure and, additionally or alternatively, can facilitate controlling delivery of therapeutic energy to a treatment site of an anatomic structure.

A catheter with an electrode assembly has a functional electrode located at a first position on the electrode assembly and a shunting electrode located proximal to the first position. Irrigation fluid carried by the catheter may be electrically coupled with a patient's blood through the shunting electrode. The shunting electrode may be used to reduce noise in an electrocardiogram signal that results from the pump used to supply the irrigation fluid.