An instrument access device (500) comprises a distal O-ring (11) for insertion into a wound interior, a proximal member for location externally of a wound opening and a sleeve (12) extending in two layers between the distal O-ring (11) and the proximal member. The proximal member comprises an inner proximal ring member (25) and an outer proximal ring member (24) between which the sleeve (12) is led. A seal housing (300) is mounted to the inner proximal ring member (25). A gelatinous elastomeric seal (302) with a pinhole opening (303) therethrough is received in the housing (300). An instrument may be extended through the seal (302) to access the wound interior through the retracted wound opening in a sealed manner.

A manifold assembly for a surgical gas delivery system is disclosed, which includes a manifold body having an inlet port for receiving insufflation gas from a gas source by way of a high pressure regulator, a first outlet port for delivering insufflation gas to a first access port and a second outlet port for delivering insufflation gas to a second access port, a first outlet line valve operatively associated with the first outlet port, wherein the first outlet line valve includes a first electro-mechanical valve actuator for dynamically controlling the flow of insufflation gas to the first access port, and a second outlet line valve operatively associated with the second outlet port, wherein the second outlet line valve includes a second electro-mechanical valve actuator for dynamically controlling the flow of insufflation gas to the second access port.

This disclosure includes wound dressings and systems for effluent management of topical wound therapy and related methods. Some devices, which are configured to dilute therapeutic gas effluent flowing from a dressing, comprise a therapeutic gas source configured to provide therapeutic gas to the dressing; a container comprising a sidewall that defines a chamber configured to receive therapeutic gas effluent from the dressing; a negative pressure source configured to be coupled to the container such that the negative pressure source can be activated to draw fluid from the dressing through the chamber of the container; and a diluent gas source configured to deliver a diluent gas to dilute therapeutic gas effluent before the therapeutic gas effluent enters the negative pressure source.

An external ear canal pressure regulation device including a fluid flow generator and an earpiece having a first axial earpiece conduit fluidicly coupled to the fluid flow generator, whereby the earpiece has a compliant earpiece external surface configured to sealably engage an external ear canal as a barrier between an external ear canal pressure and an ambient pressure.

A bone preparation system kit includes a hand piece, tubing coupled to an input of the hand piece, and a nozzle with a nozzle tip coupled to an output port of the hand piece. The hand piece includes an internal passageway extending there through from the inlet port to the outlet port for forming a flow path and further includes a valve stem supported therein for movement across the internal passageway for opening and closing the internal passageway wherein flow along the flow path is blocked by the valve stem. The hand piece also includes a trigger configured to move the valve stem to thereby control the flow of fluid through the hand piece. The hand piece, nozzle, and tubing are sterilized and enclosed in a package, such as plastic or metal foil package, including a plastic or metal foil pouch, which is configured to maintain the sterilization of said bone preparation system.

A vessel harvesting apparatus for removing a blood vessel from a patient includes collection and conditioning (i.e., treatment) of expelled insufflation gas prior to releasing the gas into the air of the operating room. An endoscopic instrument has a distal end with a vessel harvesting tip and has a proximal end with a handle. An insufflation channel is configured to convey an insufflation gas subcutaneously into a dissected space within the patient. A removal channel is configured to evacuate fluidic contents from the dissected space, wherein the fluidic contents include insufflation gas and biological impurities. A processor/separator is coupled to the removal channel to process the fluidic contents to retain at least some of the biological impurities and to exhaust the insufflation gas.

Systems and methods for reducing insufflation loss due to gas leakage during a laparoscopic surgical procedure are provided. The surgical procedure includes the use of a surgical instrument having an end effector and a trocar through which the surgical instrument is inserted for access to the abdominal cavity of a patient receiving laparoscopic surgery. The trocar includes a lip, a lip seal disposed within the lip, and a cannula located beneath the lip. The systems and methods reduce or prevent a loss of insufflation when using conventional systems and methods to insert the surgical instrument through a conventional trocar.

A surgical obturator comprising an elongate shaft extending along an axis between a proximal end and a distal end includes a bladeless tip disposed at the distal end of the shaft. The tip has a blunt point and a pair of shorter side surfaces separated by a relatively longer pair of opposing surfaces to form in radial cross-section a geometric shape that has a longer length and relatively narrower width. The side surfaces and opposing surfaces terminate in end surfaces located proximally from the blunt point. The end surfaces extend radially outwardly from opposite locations of the outer surface. A conical surface facilitates initial insertion of the obturator and the geometric shape facilitates separation of consecutive layers of muscle tissue having fibers oriented in different directions and provides proper alignment of the tip between the layers of muscle.

Systems for insufflation and recirculation of insufflation fluid in a surgical procedure include a control unit having a fluid pump, a supply conduit, a return fluid conduit and a pressure-controlled valve. The pressure-controlled valve is in fluid communication with an insufflation gas supply, the supply conduit and the return conduit and is adapted and configured to respond to pressure control signals to adjust position and thereby system flow parameters, to reduce entrainment of air from the surrounding environment, and to increase the concentration of insufflation gas in an operative space, and/or to reduce an overpressure condition in the operative space.

A valve component (1) of the invention comprises a main valve (2) which is located on a centre line and at least one auxiliary valve (3) which is located radially outwardly of the main valve (2). The main valve may be used for sealing engagement with a cannula. In some cases the cannula may be used for introduction of a number of robotically controlled surgical instruments generally, including a camera. The auxiliary valves (3) may be utilised to introduce another instrument through the valve component. The valve component is mounted in a manner which ensures that the valve component (1) is rotatable about a centre line through the axis of the valve component (1). This ensures that the valve component (1) can be rotated relative to a cannula inserted through the main valve (2) and consequently that the auxiliary valves (3) are rotatable relative to the cannula allowing the auxiliary valves (3) to be positioned to facilitate optimum access and manipulation for an auxiliary instrument(s) inserted through the auxiliary valve(s) (2).