A method is described of operating a pipetting system (10) that has a worktable (12), at least one manipulator arm (18), and first and second Z-rods (20,20) arranged on the at least one manipulator arm (18). The method involves receiving by the second Z-rod (20) a tool (24) via an adapter attached to the second Z-rod (20), wherein the tool (24) has a central axis and a working area, the working area being defined by a circle which center is located on the central axis of the tool (24) and which radius being a distance between the central axis and a largest extension of an outline of the tool (24) in a projection.

Devices and methods for determining whether a contact of a liquid dispenser with a liquid based on sound and/or for determining a liquid volume in the liquid dispenser are provided. According to an embodiment, the liquid dispenser includes a sound generator and an acoustic sensor, and at least one of the sound generator or the acoustic sensor is disposed within the dispense chamber portion. According to an embodiment, the liquid dispenser includes a sound generator and an acoustic sensor, and further includes one or more side conduits, where at least one of the sound generator or the acoustic sensor is disposed within a cavity of a respective one of the one or more side conduits, wherein the cavity and a connector of each of the one or more side conduits are free from resonance within a frequency range of the sound sensed by the acoustic sensor.

A nucleic acid extraction system, comprising: a nucleic acid extraction plate, and a pipetting device and positive pressure device that are arranged side by side, the pipetting device comprising: an infusion device, an infusion device mounting frame, an infusion device driving unit, and a plurality of infusion units, each of the infusion units comprising: a reagent supply device and a reagent flow controller; the positive pressure device comprises: a plug, an air pipe, a positive pressure provider and a positive pressure driving device. The nucleic acid extraction system is highly efficiency and low-cost when extracting nucleic acid.

The dispensing unit includes a disc, a cartridge, and a dispensing holder. The disc has a disc shape and includes a track region provided with recesses and projections alternately arranged in a radial direction. The cartridge includes a penetration hole, and a well is formed by the penetration hole and the track region in a state in which the cartridge is attached to the disc. The dispensing holder includes a holding part to be inserted into the penetration hole, and a guide hole penetrating the holding part. The guide hole has a truncated cone shape in which a first opening diameter on the holding part side is smaller than a second opening diameter on a side opposite to the holding part, and a center line of the guide hole is located on a line passing through the center of the disc and the center of the well.

The purpose of the present invention is to provide a detection method which can safely recover a remaining sample from a detection device without causing a biological disaster. In order to achieve at least one of these goals, this detection method involves: a sample collection step for collecting a sample from the sample holding well, and transferring the same to a detection chip; a detection step for detecting the detected substance captured in the detection chip by means of a detection unit; and, after the sample collection step, a remaining sample recovery step for collecting the sample remaining in the sample holding well and transferring this to a sample recovery well. At that time, after the remaining sample recovery step, the surface area of the opening in the sample recovery well is smaller than the surface area of the opening in the sample holding well.

The present disclosure is directed to methods and devices for reducing or otherwise mitigating accumulated reagent material and/or fluids within a dispense nozzle of a dispenser.

The present disclosure is directed to methods and devices for reducing or otherwise mitigating accumulated reagent material and/or fluids within a dispense nozzle of a dispenser.

The purpose of the present invention is to provide a detection method which can safely recover a remaining sample from a detection device without causing a biological disaster. In order to achieve at least one of these goals, this detection method involves: a sample collection step for collecting a sample from the sample holding well, and transferring the same to a detection chip; a detection step for detecting the detected substance captured in the detection chip by means of a detection unit; and, after the sample collection step, a remaining sample recovery step for collecting the sample remaining in the sample holding well and transferring this to a sample recovery well. At that time, after the remaining sample recovery step, the surface area of the opening in the sample recovery well is smaller than the surface area of the opening in the sample holding well.

An automatic analyzer provided with a probe provided with an opening end for discharging a dispensing liquid, a pump connected to a side opposite to the opening end of the probe, and a dispensing mechanism provided with a drive control unit which controls drive of the pump, in which the drive control unit controls the drive of the pump to realize a discharging speed at which a droplet of the dispensing liquid is formed at the opening end of the probe at an initial stage of discharge drive and a discharging speed at which a liquid column of the dispensing liquid is formed at the opening end of the probe at a later stage of the discharge drive at the time of the discharge drive of the pump to discharge a predetermined amount of dispensing liquid into a dispensing container from the opening end of the probe.

A method for controlling an anti droplet system of a laboratory system or device comprising at least one air displacement pipettor with a pressure sensor and a control unit for controlling operation of the pipettor, the method comprising the following steps controlling the pipettor to be moved such that the pipettor tip is immerged in a fluid to be aspirated, aspirate a predetermined volume of fluid, move the pipettor such that the pipettor tip is emerged from the fluid, continuously monitoring the pressure above the fluid column in the pipettor tip and generating pressure curve over time, and determining if a pressure increase above the fluid column has been detected.