An arthroscopic inflow and outflow sheath providing an improved inflow and outflow system reducing the diameter of a continuous flow system while providing fluid management during arthroscopy. The improved arthroscopic inflow and outflow sheath comprises an elongated atraumatic sheath having an inner surface, outer surface, proximal end, and distal end. The atraumatic sheath further comprises plurality of pleated ribs, tubes, or v-shaped ribs extending from the inner surface of the sheath and designed to contact an outer surface of the arthroscope thereby creating outer lumens facilitating the inflow and outflow of fluid to a surgical site.

The wound dressing apparatus facilitates administration of combined negative pressure and positive pressure treatment at a wound site. The wound dressing apparatus includes a wound dome having a substantially hollow dome interior, a manifold that is in fluid communication with the dome interior, a first passage adapted to connect to a negative pressure source to the dome interior, and a second passage adapted to connect to a positive pressure source to the manifold.

A conveying device for body fluid includes a catheter tube having a distal end to be inserted into the body and a proximal end. In order to provide a conveying device which can no longer become clogged with coagulating substances, a hollow body which is arranged in a longitudinally moveable and/or rotatable manner in the catheter tube, extends from the distal end at least up to the proximal end, and forms a transport channel over its length extending in the extension direction of the catheter tube.

An ultrasonic cutting tool is designed for use in an ultrasonic instrument. The tool is a blade having a flat section manufactured from at least a first blade layer and second blade layer. The first and second blade layer each being a flat metal plate arranged in parallel to one another and bonded to one another.

Fluidic devices, methods, and systems are disclosed. One system may comprises a sheath, a delivery module, and a removal module. The sheath includes a working lumen, a delivery lumen, and a removal lumen. The delivery module is configured to move a fluid from a fluid reservoir and into a body cavity through the delivery lumen. The removal module is configured to move the fluid and a particulate contained therein out of the body cavity through the removal lumen, through a filtration device that removes the particulate, and back into the fluid reservoir. One method comprises placing a distal end of sheath into a body cavity, energizing the working lumen to generate a particulate in the cavity, moving the fluid into the cavity to engage the particulate, and moving the fluid and the contaminant from the body cavity, through a filter for removing the contaminant, and back into the fluid source.

New and useful systems, apparatuses, and methods for providing negative-pressure therapy with instillation of topical treatment solutions are described. An apparatus may comprise an exudate container, a solution source, and a pneumatically-actuated instillation regulator. The instillation regulator may be coupled to the exudate container and to the solution source, and negative pressure from a negative-pressure source can actuate the instillation regulator. In some embodiments, a negative-pressure source may be configured for a negative-pressure interval and a venting interval, and the instillation regulator can be configured to draw instillation solution from the solution source during a negative-pressure interval and to instill the solution to a dressing during a venting interval.

A device, method, and system are provided for treating pleural effusion by administration of a chemical agent through a pleural catheter to achieve pleurodesis. A first embodiment includes a dual barreled syringe to deliver the sclerosing agent; one barrel includes a sclerosing agent, and the other barrel includes a flushing fluid. A kit of the invention comprises a plurality of syringe devices each preloaded with a sclerosing agent matched with a presumptive diagnosis regarding the etiology of the pleural effusion to be treated. A device of the invention includes a handheld, disposable, electronic delivery device with preloaded chambers holding selected medicaments and flushing fluid. Automatic delivery of medicaments is achieved in which a microcontroller of the device controls evacuation of the selected chambers by one or more actuators that communicate with the chambers.

A wound therapy system includes a negative pressure circuit, a pump, a pressure sensor, and a controller. The negative pressure circuit applies negative pressure to a wound. The pump is fluidly coupled to the negative pressure circuit and produces a negative pressure at the wound or within the negative pressure circuit. The pressure sensor measures the negative pressure within the negative pressure circuit or the wound. The controller performs a testing procedure including a first drawdown period, a leak rate determination period, a vent period, and a second drawdown period. The controller is configured to receive one or more pressure measurements of the pressure sensor over the leak rate determination period to determine a leak rate parameter, monitor an amount of elapsed time over the second drawdown period to determine a drawdown parameter, and estimate a volume of the wound based on the leak rate parameter and the drawdown parameter.

Fluidic devices, methods, and systems are disclosed. One system may comprises a sheath, a delivery module, and a removal module. The sheath includes a working lumen, a delivery lumen, and a removal lumen. The delivery module is configured to move a fluid from a fluid reservoir and into a body cavity through the delivery lumen. The removal module is configured to move the fluid and a particulate contained therein out of the body cavity through the removal lumen, through a filtration device that removes the particulate, and back into the fluid reservoir. One method comprises placing a distal end of sheath into a body cavity, energizing the working lumen to generate a particulate in the cavity, moving the fluid into the cavity to engage the particulate, and moving the fluid and the contaminant from the body cavity, through a filter for removing the contaminant, and back into the fluid source.

A body cavity irrigation and drainage system including a catheter apparatus that has a proximal end, a distal end, a longitudinal axis, a first flow channel extending from the proximal end to the distal end, and a second flow channel extending from the proximal end to the distal end and being fluidly isolated from the first flow channel. The catheter apparatus may alterable between: (1) a first state in which the first and second flow channels are linear and parallel to the longitudinal axis along an entire length of the first and second flow channels; and (2) a second state in which a distal portion of the first flow channel curls away from the longitudinal axis in a first direction and a distal portion of the second flow channel curls away from the longitudinal axis in a second direction that is different from the first direction.