A surgical console has a receptacle for receiving a surgical fluidics cassette. The receptacle has a light source that transmits light to light pipes in the surgical fluidics cassette. The light pipes transmit light to a light transmissive optical interface surrounded by an opaque frame in the surgical fluidics cassette. The opaque frame is located at a fluid level detection system in the cassette. The system illuminates fluidic connectors on the surgical fluidics cassette without interfering with the fluid level detection system of a surgical console.

A peristaltic pump and an analyzer for testing a biological sample, wherein the pump includes a pump head that is constructed as a screwless assembly, wherein the pump includes a bayonet and/or a beam coupling, and/or wherein rollers of the pump are configured to be pivoted about corresponding pivot axes that intersect with the roller axes.

A hose pump rotor includes a main rotating shaft. The main rotating shaft includes a main shaft and a rotor base which are fixedly connected to each other, roller support arms are symmetrically arranged on the rotor base and outer ends thereof are connected to rollers, with axes of the rollers being parallel to an axis of the main shaft, the roller support arms and the rotor base form a radially-displaceable limiting fit, and the roller support arms and the rotor base form a locking fit. The rotor base includes a groove enclosed by a bottom plate and side plates disposed on opposite sides thereof, wherein the bottom plate is fixedly connected to the main shaft.

A push-pull micropump includes one or more pairs of channels configured to transfer one or more fluids, each channel pair having an aspiration channel and an injection channel; and an actuator configured to engage the one or more pairs of channels, wherein the actuator comprises a plurality of rolling members and a driving member configured such that when the driving member rotates, the plurality of rolling members rolls along the one or more pairs of channels to cause individually the one or more fluids to transfer through each channel pair simultaneously at different flowrates or the same flowrate, depending upon actuated lengths of the aspiration and injection channels of each channel pair, wherein an actuated length of a channel is defined by a length of the channel along which the plurality of rolling members rolls during a full rotation of the driving member.

Provided is a tube pump including: first and second roller units that rotate about the axis while being in contact with a tube; a drive shaft arranged on the axis and coupled to the first roller unit; a drive cylinder arranged on the axis and coupled to the second roller unit; a first drive unit configured to rotate the drive shaft in a predetermined direction about the axis and having a first drive shaft configured to rotate about the axis; and a second drive unit configured to rotate the drive cylinder in the predetermined direction about the axis and having a second drive cylinder configured to rotate about the axis, the drive shaft is arranged to penetrate through the second drive unit along the axis, and the drive cylinder is arranged on an outer circumference side of the drive shaft and rotatably about the axis independently of the drive shaft.

A flow channel suitable for use with a peristaltic pump comprises: an upper wall having a bowed upward shape; a lower wall having one of a bowed downward shape and a flat shape; and one or more spacers between the upper wall and the lower wall disposed between lateral edges of the upper and lower walls, each spacer having a height. The upper wall, lower wall, and the one or more spacers define a lumen. When the upper wall is compressed toward the lower wall by compressing members, the one or more spacers limit vertical movement of the compressing members such that the lumen is maintained in an under-occluded condition. In some cases, the bowing of one of the upper and lower walls has a recurved shape.

A tube retention device includes first and second wall surfaces having a first attachment point and a second attachment point, respectively. A first clamp component, having a first tube-engagement surface, is pivotably coupled to the first wall surface at the first attachment point, and configured to rotate about an axis at least approximately normal to the first wall surface. A second clamp component, having a second tube-engagement surface, is pivotably coupled to the second wall surface at the second attachment point, and configured to rotate about an axis at least approximately normal to the second wall surface. The clamp components may be configured to rotate, in opposite directions and in response to application of force by a tube piece upon the tube-engagement surfaces, from an open position to a closed position, where the tube piece is retained between the clamp components when the clamp components are in the closed position.

A peristaltic micropump include a plurality of channels, each channel being flexible, having a middle channel portion, and being operably in fluidic communications with a first port and a second port, and the middle channel portions of the plurality of channels being arranged in one or more concentric circles; and an actuator comprising a bearing assembly driven by a motor, the bearing assembly comprising a plurality of rolling members and a bearing accommodating member for accommodating the plurality of rolling members, the actuator being positioned in relation to the plurality of channels such that when the bearing accommodating member rotates, the plurality of rolling members rolls along the one or more concentric circles of the middle channel portions of the plurality of channels to cause individually fluids to transfer between the first port and the second port of each of the plurality of channels simultaneously at different flowrates.

In one aspect of the invention, the fluidic device includes a fluidic chip includes a body having a first surface and an opposite, second surface, one or more channels formed in the body in fluidic communications with input ports and output ports for transferring one or more fluids between the input ports and the output ports, and a fluidic chip registration means formed on the first surface for aligning the fluidic chip with a support structure; and an actuator configured to engage with the one or more channels at the second surface of the body for selectively and individually transferring the one or more fluids through the one or more channels from at least one of the input ports to at least one of the output ports at desired flowrates.

A fluidic device that can feed a fluid along a flow path without causing a leakage of gas is provided. The fluidic device includes: a first substrate and a second substrate which are bonded to each other at a bonding surface and at least one of which includes a flow path that is open on the bonding surface; and three or more valve portions that are disposed at a position facing the flow path and that are configured to adjust a flow of a fluid in the flow path by deformation. The first substrate includes a through-hole penetrating the first substrate at positions facing the valve portions. The valve portions are disposed on the same circumference centered on an axis extending in a normal direction of the bonding surface.