A tray and a manifold for collecting a tissue sample under influence of a vacuum. The manifold includes a sleeve, and the tray includes a sealing member configured to be removably positioned in sealing engagement with the opening. A basket defining a tissue collecting cavity, and a base portion includes at least one rib disposed within said tissue collecting cavity. The rib(s) define pockets arranged in series in the proximal-to-distal direction so as to provide low pressure regions when the tray is being removed from the sleeve. The rib(s) may be transverse to a longitudinal axis, and/or arcuate in a shape complimentary to the base portion. The base portion defines porous features that may be arranged in groupings A sealing edge in sealing engagement with an upper barrier of the sleeve may delay an onset of airflow entering the tissue collecting cavity.

Urinary catheter collection bags and methods for using the same are provided. The collection bags allow users to more easily, cleanly and comfortably open and empty the bags.

Dressing embodiments may include a first layer comprising a polymer film having a plurality of perforations, and a second layer comprising a manifold. In some embodiments, the second layer may have a length of at least 12 centimeters. In some embodiments, the second layer may have a thickness of between 7 millimeters and 10 millimeters. In some embodiments, the manifold may comprise a plurality of slits configured to provide conformability. The manifold may also be configured to maintain at least 80% of an applied negative pressure through the length.

A method for operating a breastpump unit for expression of human breastmilk and a breastpump unit. The breastpump unit having a pump assembly for generating vacuum pressure, a reservoir for receiving breastmilk, and a breast shield for sealing application to a breast to be pumped. The breast shield has a flexible inner chamber for receiving a nipple of the breast and a second chamber, in particular an outer chamber extending about the outside of the inner chamber and which at least partially surrounds a nipple that is inserted into the inner chamber. The method includes a cycle including evacuating the inner chamber and the reservoir by the pump assembly to a first vacuum pressure, connecting the second chamber to the pump assembly and to the reservoir 24 and evacuating the second chamber to a second vacuum pressure, in which the second vacuum pressure is higher or greater than the first vacuum pressure, and at least partly releasing the vacuum from the second chamber to a lower vacuum pressure, in particular lower than the first vacuum pressure.

In one embodiment, a fluid dynamics system includes a solenoid valve including a valve body, which includes a valve cavity having a direction of elongation, a first channel, and a second channel, a solenoid coil disposed in the valve body around the valve cavity, and a plunger comprising a magnetic element and configured to move back-and-forth along the direction of elongation between a first position and a second position in the valve cavity, selectively opening the first channel and closing the second channel when the plunger is in the first position, and closing the first channel and opening the second channel when the plunger is in the second position, and a controller configured to control the solenoid coil to selectively move the plunger between the first position and the second position, and to selectively maintain the plunger in the first position and the second position.

In one embodiment, an irrigated medical system includes a medical tool, an irrigation line configured to fluidically connect an irrigation reservoir storing irrigation fluid to the medical tool, and provide at least some of the irrigation fluid to the medical tool, a force sensor configured to be coupled with the irrigation reservoir, and provide a signal responsively to a force exerted by the irrigation reservoir on the force sensor over time as irrigation fluid in the irrigation reservoir is depleted, and a controller configured to find an irrigation rate of the irrigation fluid flowing in the irrigation line responsively to the signal.

A dressing includes a drape, a metal coating provided on a skin-facing surface of the drape, a pressure-sensitive adhesive provided on a lower surface of the metal coating, and a gasket having a frame shape. The drape is a thin film. The gasket includes an inner edge defining an opening and an outer edge offset inwardly from an outer periphery of the drape. The gasket is in contact with the metal coating and leaves a margin of pressure-sensitive adhesive around the gasket.

A biopsy device includes a cannula and a specimen collector. The cannula has a proximal end and a longitudinal axis. The specimen collector contains the proximal end of the cannula. The specimen collector has a removable sample receiving cartridge that is removable along the longitudinal axis of the cannula to expose the proximal end of the cannula.

An evacuation system and method for removing and/or treating gaseous and/or particulate byproducts of surgical procedures includes an end effector such as a side vent trocar, an operating room tower or the equivalent, a disposal vessel, a vacuum source and optionally a filter. The end effector may be coupled to the tower by a conduit, the tower may be coupled to the collection tank by a conduit, and the collection tank may be coupled to the vacuum source. Gaseous and/or particulate byproducts may flow from the surgical site through the trocar, conduits, tower tank and filter, and the flow may be regulated at least in part by the components of the system.

An apparatus and method use a catheter for specific and discriminate treatment of central nervous system disease. With the catheter, selective hypothermia to the brain and/or the spinal cord for injury protection can be achieved without the need for systemic cooling. The catheter is also capable of draining excess cerebrospinal fluid.