A surgical cassette for an ophthalmic surgical system includes an irrigation system and an aspiration system. The irrigation system is in fluid communication with a handpiece and carries fluid toward a surgical site. The aspiration system is in fluid communication with the handpiece and carries fluid away from the surgical site. The aspiration system includes an aspiration pump and tubing of an aspiration conduit. The aspiration pump generates a normal vacuum pressure within the aspiration conduit to carry fluid away from the surgical site during normal operation. The tubing has a larger cross-sectional area in response to normal vacuum pressure. The tubing collapses from the larger cross-sectional area to a smaller cross-sectional area in response to an occlusion; maintains the smaller cross-sectional area during a post-occlusion break surge to mitigate the post-occlusion break surge; and returns to the larger cross-sectional area after the post-occlusion break surge.

A surgical cassette for an ophthalmic surgical system comprises an irrigation system and an aspiration system. The irrigation system is in fluid communication with a handpiece and carries fluid toward a surgical site. The aspiration system is in fluid communication with the handpiece via an aspiration conduit, and carries fluid away from the surgical site. The aspiration system comprises a chamber that expands to store fluid, and collapses to move the fluid to meet a volume demand in the aspiration conduit to mitigate a post-occlusion break surge.

A medical apparatus includes an inflow tube having a first conduit having a first inner diameter. An outflow tube has a second conduit having a second inner diameter. An intermediate tube has a first end and a second end, the first end connected to the inflow tube and the second end connected to the outflow tube. The intermediate tube has a third inner diameter, the third inner diameter being larger than the first inner diameter and the second inner diameter. The intermediate tube defines a flow path. The flow path includes a first flow path configured to direct a liquid flowing along the flow path in a first direction, and a second flow path configured to direct the liquid flowing along the flow path in a second direction. The first direction is opposite to the second direction.

A detection cassette for detecting a sample is provided. The sample includes a first component and a second component. The detection cassette includes a sample injection hole, first and second separation tanks communicated with the sample injection hole, and first and second detection tanks communicated with the first and second separation tanks. A part of the sample enters the first separation tank from the sample injection hole and separated into the first component and the second component in the first separation tank. Another part of the sample enters the second separation tank from the sample injection hole and separated into the first component and the second component in the second separation tank. The first component separated in the first separation tank flows to the first detection tank and the second component separated in the second separation tank flows to the second detection tank for detections. A detection system is provided.

Methods of assembling a manifold for a medical waste collection system. A flapper valve unit is secured to a head of a cap. A filter element is positioned within a shell. Basket hands of the filter element are fitted between first pairs of ribs of the cap skirt. Fingers of the shell are fitted between second pairs of ribs of the cap skirt. The cap is secured to the shell to cover an open distal end of the shell. A drip stop is secured to the proximal end base of the shell to seat within the outlet opening. Ears may be fitted through holes defined by the flapper valve unit and cap holes defined by the cap so as to snap lock to the head of the cap. The hub of the flapper valve unit may be compressed with the ears snap locked to the head of the cap.

A method for improving a flow condition through a catheter inserting a distal end of a sheath within the vasculature of a subject, placing the aspiration catheter through the sheath and advancing the aspiration catheter such that an open distal end of the aspiration lumen is distal to a distal end of the sheath and is in proximity to a thrombus within a blood vessel of a subject, coupling an extension conduit in fluid communication with a lumen of the sheath to a second fluid source, and activating a pump such that pressurized fluid from the first fluid source is applied to the supply lumen of the aspiration catheter, wherein when an active flowing condition is not present, fluid from the second fluid source is caused to flow through the lumen of the sheath.

A fluid management system includes a control console and a cassette. The control console includes a housing, a cassette bay defined within the housing, and an actuation mechanism disposed within the housing and including a plurality of actuators. The cassette is insertable into the cassette bay of the control console and includes a chassis supporting a plurality of fluid flow paths through the cassette, and an outer housing defining at least one access opening providing access to the plurality of fluid flow paths. With the cassette positioned within the cassette bay, each actuator of the plurality of actuators is aligned with an access opening of the at least one access opening to enable each actuator, upon actuation thereof, to close a corresponding fluid flow path of the plurality of fluid flow paths.

An implantable drainage device is provided. The device is adapted to move body fluid from one part of the body of a patient to another part of the body.

Interventional catheter assemblies, operating systems and adaptive interface components allow operation of a variety of interventional catheter assemblies, including infusion catheters, aspiration catheters and interventional catheters that provide both infusion and aspiration, using a common control console housing infusion and aspiration systems. Adaptive tubing cassettes having a handle and one or more preformed tubing loops route aspiration and/or infusion tubing in a predetermined configuration to mate with aspiration and infusion systems on a control console.

According to certain embodiments, a surgical cassette for an ophthalmic surgical system comprises an irrigation conduit that is in fluid communication with a handpiece and carries fluid toward a surgical site. An aspiration conduit is in fluid communication with the handpiece and carries fluid away from the surgical site. An aspiration pump creates a vacuum pressure in the aspiration conduit to draw fluid through the aspiration conduit towards a drain reservoir. A reservoir couples with a pressure-vacuum source to manage the reservoir pressure. A valve is in fluid communication with the aspiration conduit and the reservoir, and provides one or more channels between the aspiration conduit and the reservoir. Each sensor detects a pressure associated with the surgical site. A computer controls the valve in response to the pressure detected by the one or more pressure sensors to mitigate a pressure or volume change.