Laboratory automation system

Patent metadata

Field	Value
Publication number	US-11204361-B2
Application number	US-201815875215-A
Country	US
Kind code	B2
Filing date	Jan 19, 2018
Priority date	Feb 3, 2017
Publication date	Dec 21, 2021
Grant date	Dec 21, 2021

Abstract

A laboratory automation system for processing sample containers containing laboratory samples and/or for processing the samples is presented. The laboratory automation system comprises a digital camera configured to take an image of the sample container together with a calibration element. The image comprises image data related to the sample container and image data related to the calibration element. The laboratory automation system also comprises an image processing device configured to determine geometrical properties of the sample container depending on the image data related to the sample container and the image data related to the calibration element.

First claim

We claim:

1. A laboratory automation system for processing sample containers containing laboratory samples, the laboratory automation system comprising:
a sample container;
a calibration element, wherein the calibration element is attached to the sample container, wherein the sample container is closed by a cap and wherein the cap serves as the calibration element;
a digital camera configured to take an image of the sample container together with the calibration element, wherein the image comprises image data related to the sample container and image data related to the calibration element;
an image processing device configured to determine pixel data of the sample container and the calibration element from the image data received from the digital camera by pattern recognition, wherein the image processing device is configured to count the number of pixels along a coordinate for the sample container and for the cap and determine geometrical properties of the sample container in along the same coordinate based on a rule of three, using the counted pixels along the same coordinate and known geometric properties of the cap; and
a transport plane, a driver configured to move the sample container carriers on top of the transport plane, and a control device configured to control the movement of the sample container carriers on top of the transport plane by driving the driver such that the sample container carriers move along corresponding transport paths, wherein the driver is electro-magnetic actuators located below the transport plane and controllable by the control device, and the sample container carriers respectively comprise a magnetically active device for interaction with a magnetic field generated by the electro-magnetic actuators such that a magnetic drive force is applied to the sample container carriers.

2. The laboratory automation system according to claim 1 , wherein the digital camera is a digital color camera, wherein the calibration element has defined color properties, wherein the image processing device is configured to calibrate the digital color camera depending on the defined color properties of the calibration element.

3. The laboratory automation system according to claim 1 , further comprises,
a pipetting station, wherein the pipetting station is configured to operate in response to the determined geometrical properties of the sample container.

4. The laboratory automation system according to claim 1 , further comprises,
a plurality of laboratory stations configured to process the samples comprised in the sample containers.

Assignees

• Roche Diagnostics Operations Inc

Inventors

• Birrer Armin
• Drechsler Andreas
• Harbers Rik

Classifications

• G01N35/00732

  Identification of carriers, materials or components in automatic analysers · CPC title

• G06T7/0012

  Biomedical image inspection · CPC title

• G01N2035/0406

  Individual bottles or tubes · CPC title

• G01N2035/0493

  Locating samples; identifying different tube sizes · CPC title

• B65G54/02 Primary

  electrostatic, electric, or magnetic · CPC title