The invention relates to a method for detecting a particle in a container filled with liquid, the method having the following steps: dispensing a liquid sample into the container, scanning a partial volume area of the container in order to detect a particle located in the liquid sample, characterized in that an upper limit and a lower limit of the partial volume area is determined in a calibration operation upstream of the dispensing process.

The present invention provides an automatic chemical analysis apparatus and an electrical impedance spectrometry device which make it possible to detect the state of a stirring mechanism prior to performing a stirring operation. The automatic chemical analysis apparatus dispenses a reagent and a sample to be analyzed into a reactor vessel 107, and performs stirring by applying sonic waves to the reactor vessel 107. The automatic chemical analysis apparatus comprises: a piezoelectric element 201 that generates sonic waves; a plurality of split electrodes 211 that are provided to the surface of the piezoelectric element 201; a power amplifier 203 that causes the piezoelectric element 201 to generate sonic waves by applying a voltage to each of the split electrodes 211; and a host computer and impedance measuring circuit that measure the electrical impedance spectrum of each split electrode 211 by applying a voltage to each of the split electrodes 211.

An operator can perform exchange work of a reagent container without including a mechanism for reagent exchange and interrupting an analysis operation.

An automatic analyzer includes: an analysis unit including a plurality of operation units for performing analysis of a specimen; and a control unit for controlling the analysis unit. The control unit allows the analysis unit to set to at least (a) an analysis operation mode in which a first and a second operation unit are operated for the analysis of the specimen, (b) a partial operation mode in which only the first operation unit is continuously operated after the analysis of the specimen is completed in the analysis operation mode, and (c) a reagent exchange mode in which consumables containing a reagent are exchangeable in the analysis unit. The control unit allows the analysis unit to shift from the partial operation mode to the reagent exchange mode.

Devices and methods for the deposition of reagents onto cells or tissue samples are disclosed. Also disclosed are reagent compositions suitable for dispensing via a droplet-on-demand system.

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.

A point-of-care testing (POCT) fully-automatic chemiluminescence device based on a multi-channel parallel pretreatment technology includes a support. The support is provided thereon with a reaction chamber assembly, which reciprocates linearly relative to the support. A multi-channel parallel pretreatment assembly and a photomultiplier tube (PMT) assembly are arranged on the support and are located above the reaction chamber assembly. The multi-channel parallel pretreatment assembly is configured to transfer, clean, and separate reagents in reagent strips in the reaction chamber assembly. The PMT assembly is configured to detect a luminescence value of the cleaned and separated reagents. The device does not have a liquid passage, resulting in low maintenance costs and high reliability. This realizes automatic sample addition, supports whole blood testing, and avoids carry-over. The device solves the problems in the traditional POCT chemiluminescence device of manual sample addition, cumbersome steps, and human errors which are easily made.

A point-of-care testing (POCT) fully-automatic chemiluminescence device based on a multi-channel parallel pretreatment technology includes a support. The support is provided thereon with a reaction chamber assembly, which reciprocates linearly relative to the support. A multi-channel parallel pretreatment assembly and a photomultiplier tube (PMT) assembly are arranged on the support and are located above the reaction chamber assembly. The multi-channel parallel pretreatment assembly is configured to transfer, clean, and separate reagents in reagent strips in the reaction chamber assembly. The PMT assembly is configured to detect a luminescence value of the cleaned and separated reagents. The device does not have a liquid passage, resulting in low maintenance costs and high reliability. This realizes automatic sample addition, supports whole blood testing, and avoids carry-over. The device solves the problems in the traditional POCT chemiluminescence device of manual sample addition, cumbersome steps, and human errors which are easily made.

Disclosed is a container transfer method for transferring a container from a container holder capable of holding a plurality of containers, by using a holding section capable of performing an opening/closing operation, vertical movement, and horizontal movement. The method includes: moving the holding section downward to a position lower than a head portion of the container, at a position where the container is not held in a plan view; horizontally moving the holding section in an opened state, toward a target container on the container holder; after the horizontal movement of the holding section to the target container, closing the holding section with respect to the target container; and moving upward the holding section in a closed state.

A system for loading pipette tips. A system for accommodating pipette tips is provided, comprising a tray having openings for accommodating pipette tips in a plate, wherein the openings have at their upper end a surrounding contour which has curved surface area corresponding to a section of a spherical washer, and pipette tips having at their upper end an offset forming a contact surface for the surrounding contour of the tray's opening, wherein the shape of the contact surface corresponds to the section of a spherical washer so that the centers of both spheres of surrounding contour and contact surface are congruent