In one or more embodiments, there is a dual syringe for the collection of fluid samples which enables taking two distinct samples, and a method of use thereof. Preferably the dual syringe is for single use. Generally, the dual syringe has three components: an outer barrel; an inner barrel that fits inside the outer barrel, locks to the outer barrel and has a rubber fitting on its tip so it can function as a plunger for the outer barrel; and a plunger for the inner barrel. There is a one-way valve in a nozzle opening or passage of the inner syringe enabling inward flow only. In a method of use, an initial portion of sample fluid, e.g., from a sampling port of a bioreactor vessel, is drawn into the inner barrel of the device by pulling on the plunger. The one-way valve prevents backflow of that initial portion of sample fluid thereby protecting the ideally aseptic chamber of the outer barrel. A subsequent sample can then be collected in the outer barrel without the two samples by overcoming or otherwise unlocking the inner barrel from the outer barrel, and pulling on the inner barrel. The sample in the outer barrel is distinct from the sample in the inner barrel. Each barrel can establish direct communication with the device tip, allowing the user to draw two distinct samples that do not interact with each other.

A cylinder tip mounting head includes: a shaft member; a first cylindrical rod having a cylindrical space, which is mounted to a lower end of the shaft member, which is configured to move in the up-down direction integrally with the shaft member; a stationary second cylindrical rod, which has a housing space for housing the first cylindrical rod so that the first cylindrical rod is movable in the up-down direction, the stationary second cylindrical rod including a syringe mounting portion; and a discharge rod housed in the cylindrical space in the first cylindrical rod, the discharge rod including a plunger mounting portion. The discharge rod is configured to coordinate with the movement of the shaft member in the up-down direction so that the plunger mounted to the discharge rod reciprocates in the tubular passage in the syringe to suck the object into the tubular passage and discharge the sucked object.

A head device for mounting a dispensing tip includes a piston member, a first shaft member to move the piston member in an up-down direction, a tubular rod including a tubular space having a cylinder space in which the piston member is housed to move in the up-down direction and including a tip mounting portion into which a base end portion of the dispensing tip is fitted, a first frame equipped with the first shaft member and the tubular rod, a second shaft member engaging with the first frame to move the first frame, a second frame equipped with the second shaft member and including a guide portion configured to guide movement of the tubular rod in the up-down direction in association with the movement of the first frame in the up-down direction, and a shaft controller configured to control operation of the first and second shaft members.

The present invention resides in a multichannel head of a pipetting device for aspirating and dispensing liquid via a plurality of pipetting tips. The multichannel head comprises a connector block (110) having an array of m*n connectors (120), whereby each connector comprises an internal passageway (125) that is fluidically connectable to a pipetting tip, and further includes a plunger block having a corresponding array of m*n channels. Each channel accommodates a plunger and has an opening that is fluidically connected to the internal passageway (125) of a corresponding connector. The multichannel head further comprises a sealing mat (150) arranged between the connector block (110) and the plunger block, wherein the sealing mat comprises a corresponding array of men annular sealing elements for providing an airtight seal of the fluidic connection between the internal passageway of each connector and each opening of the corresponding plunger channel. The annular sealing elements are interconnected by a lattice of linkages that extend in lateral direction and in longitudinal direction, such that a cut-out region is formed between two opposing lateral linkages and two opposing longitudinal linkages. The sealing mat (150) is arranged on a receiving surface (116), which is provided with protrusions (117) that are shaped to pass through the cut-out regions of the sealing mat.

The invention relates to a device (32) for the bottom part of a multichannel pipetting system, comprising two sampling-cone-holding end pieces (6) and also two aspiration chambers (36a, 36b) that engage respectively with the two end pieces, the two aspiration chambers (36a, 36b) being concentric.

A bodily-fluid transfer device includes a housing, a pre-sample reservoir, and an actuator. The housing defines an inner volume between a substantially open proximal end portion and a distal end portion that includes a port couplable to a lumen-defining device. The pre-sample reservoir is fluidically couplable to the port to receive a first volume of bodily fluid. The actuator is at least partially disposed in the inner volume and has a proximal end portion that includes an engagement portion and a distal end portion that includes a sealing member. The engagement portion is configured to allow a user to selectively move the actuator between a first configuration such that bodily fluid can flow from the port to the pre-sample reservoir, and a second configuration such that bodily fluid can flow from the port to a sample reservoir defined at least in part by the sealing member and the housing.

The invention relates to a pipetting device for receiving and dispensing fluid volumes. The pipetting device has a drive device with an electric motor and a gear device with a first output device. The gear device is driven by the electric motor by means of a rotary motion and is designed to transmit a rotary motion of the electric motor to the first output device. According to the invention, the gear device has a second output device and is designed to transmit a rotary motion of the electric motor to the second output device.

An automated pipetting system includes a pipettor. The pipettor includes a pipetting channel, a first plunger mechanism operable to change a pressure in the pipetting channel to aspirate or dispense a liquid, and a second plunger mechanism operable to change the pressure in the pipetting channel to aspirate or dispense the liquid.

A bodily-fluid transfer device includes a housing, a pre-sample reservoir, and an actuator. The housing defines an inner volume between a substantially open proximal end portion and a distal end portion that includes a port couplable to a lumen-defining device. The pre-sample reservoir is fluidically couplable to the port to receive a first volume of bodily fluid. The actuator is at least partially disposed in the inner volume and has a proximal end portion that includes an engagement portion and a distal end portion that includes a sealing member. The engagement portion is configured to allow a user to selectively move the actuator between a first configuration such that bodily fluid can flow from the port to the pre-sample reservoir, and a second configuration such that bodily fluid can flow from the port to a sample reservoir defined at least in part by the sealing member and the housing.

A multifunctional pipette set includes a pipette module, a heater module and a magnetic module. The pipette module includes one or more pipette heads. The heater module has a first joint part, and the heater module configured to removably connect to the pipette module by coupling the first joint part to at least one of the plurality of pipette heads. The magnetic module has a second joint part, and the magnetic module configured to removably connect to the pipette module by coupling the second joint part to at least one of the plurality of pipette heads. The multifunctional pipette set can be further applied in an automatic detection machine.