A pinch valve mechanism for use in a suction/irrigator device, wherein the device has a conduit for suction/irrigation. The pinch valve mechanism includes a first end having a first projection, a second end, operatively connected to the first end and a second projection. A spring means operatively connected to the second end, wherein the conduit is disposed between the first end and the second end such that the first projection and second projection are biased to pinch the conduit into a closed position. Compression of the spring means moves the first end away from the second end to move the conduit into an open position.

A tube clamp closes a flexible tube by applying a pinching force to walls of the flexible tube. The clamp includes a housing connected to a circular flange, the circular flange including a tubular wall surrounding a central bore and including at least one slot in the tubular wall sized to accept the flexible tube. A pinching element is positioned inside the central bore and is rotatable about a central axis of the circular flange. The pinching element includes a pinching projection that has a cross-sectional shape bound by a partial circle, and the partial circle has a radius substantially same as an inner radius of the tubular wall.

Aspects of the present disclosure include control systems of an electrosurgical system for managing the flow of fluid, such as saline, and rates of aspiration or suction, in response to various states of conditions at a surgical site. The control system(s) may monitor and adjust to impedance at the surgical site, temperature of the surgical tissue, and/or RF current of electrodes, and may account for certain undesirable conditions, such as the electrodes sticking. The control systems may include various automatic sensing scenarios, while also allowing for several manual conditions.

Fluid clamps are described herein. A fluid clamp includes a clamp body and a rotating body. The clamp body includes a first and second valve element. Each valve element includes a valve extension portion and a valve end portion extending from the valve extension portion. The first and second valve elements are disposed opposite to each other to allow a tubing to pass between the first and second valve elements. The rotating body is rotatably coupled to the clamp body. The rotation of the rotating body moves the valve end portion of at least one of the first and second valve elements to adjust a flow rate through the tubing.

A clamping device (2) for fixing a medical device (1) on a support (3) comprises a body (20) having a first jaw (200), an adjustment element (21) connected to a second jaw (210) and being adjustable with respect to the body (20) along a longitudinal axis (L) to establish a clamp connection with a support (3) in between the first jaw (200) and the second jaw (210), and a locking mechanism (22) for locking the adjustment element (21) with respect to the body (20) in a longitudinal position. Herein, the locking mechanism (22) comprises a coupling element (220) coupled to the adjustment element (21) and a locking element (224) coupled to the coupling element (220), wherein the adjustment element (21) is rotatable about the longitudinal axis (L) to thereby move the coupling element (220) and, by moving the coupling element (220), shift the locking element (224) with respect to the adjustment element (21) in order to engage the locking element (224) with the adjustment element (21) for locking the adjustment element (21) in its current longitudinal position or to disengage the locking element (224) from the adjustment element (21) in order to unlock the adjustment element (21) to allow a moving of the adjustment element (21) along the longitudinal axis (L).

An extension set may include a clamp, which may include a housing and an actuator. The actuator may be movable between a raised position and a depressed position with respect to the housing. The actuator may include a bump profile. The extension set may include an extension tube, which may be disposed within the housing. The extension tube may include a loop. In response to movement of the actuator between the raised position and the depressed position with respect to the housing, the bump profile may progressively clamp the extension tube along the loop. The loop may facilitate an increased fluid volume flowing distally towards a catheter in response to actuating the clamp.

Aspects of the present disclosure include control systems of an electrosurgical system for managing the flow of fluid, such as saline, and rates of aspiration or suction, in response to various states of conditions at a surgical site. The control system(s) may monitor and adjust to impedance at the surgical site, temperature of the surgical tissue, and/or RF current of electrodes, and may account for certain undesirable conditions, such as the electrodes sticking. The control systems may include various automatic sensing scenarios, while also allowing for several manual conditions.

Medical fluid tubing described herein is configured to be advantageously tolerant of kinking and/or crushing. That is, the tubing is configured such that even if the tubing is kinked or fully compressed at least some portion of the lumen defined by the tubing will remain open, and some fluid will continue to flow through the tubing. Such kink and compression tolerant medical tubing can be advantageously used in association with medical fluid pumping systems (e.g., peritoneal dialysis systems and the like). In some examples, the tubing described herein is used in conjunction with, or as a part of, a medical fluid cassette that interfaces with such medical fluid pumping systems.

A monitoring device provided for monitoring the delivery of fluids through a drip chamber. The device includes an electromagnetic radiation source and a radiation detector. A weight detector is positioned to determine the weight of a fluid reservoir over time, and the detector is positioned with respect to the drip chamber to detect drops falling through the drip chamber. A processor is coupled to the radiation detector and the weight detector to determine flow rate, and is further coupled to a flow restrictor to selectively increase or decrease flow based on the determined flow rate.

An extension set may include a clamp, which may include a housing and an actuator. The actuator may be movable between a raised position and a depressed position with respect to the housing. The actuator may include a bump profile. The extension set may include an extension tube, which may be disposed within the housing. The extension tube may include a loop. In response to movement of the actuator between the raised position and the depressed position with respect to the housing, the bump profile may progressively clamp the extension tube along the loop. The loop may facilitate an increased fluid volume flowing distally towards a catheter in response to actuating the clamp.