# US 10,311,257 B2 · Laboratory instrument > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,311,257 B2 - Document ID: US10311257B2 - Status: Granted - Kind: B2 - Application number: 15/536,056 - Filed: 2015-12-16 - Published: 2017-12-28 - Granted: 2019-06-04 - Earliest claimed: 2014-12-17 - Assignees: Hans Heidolph GmbH - Applicants: Hans Heidolph GmbH - Inventors: Sergiy Rubinshteyn - Web page: https://patentgrep.com/patent/US10311257B2 ## CPC - G06K 7/087: {flux-sensitive, e.g. magnetic, detectors (G06K7/10336 takes precedence)} - F04B 43/0081: {systems, control, safety measures} - F04B 43/12: having peristaltic action - G06K 19/06196: {Constructional details} - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) ## Abstract The invention relates to a laboratory device, in particular to a peristaltic pump, having an accessory part, in particular a pump head, that is removably arranged at the laboratory device; and having an apparatus for an automatic recognition of the accessory part from a plurality of accessory parts, in particular mutually different pump heads, removably arrangeable at the laboratory device, wherein the recognition apparatus has a coding at the accessory side and a detection unit for detecting the coding at the laboratory device side. ## Claims ### Claim 1 A peristaltic pump, the peristaltic pump comprising: an accessory part that is removably arranged at the laboratory device; and an apparatus for an automatic recognition of the accessory part from a plurality of accessory parts, with the plurality of accessory parts being able to be removably arranged at the laboratory device, wherein the recognition apparatus has a coding at the accessory and a detection unit for detecting the coding at the laboratory device, wherein the coding comprises states of a plurality of magnets, the states comprising one of five possible states. ### Claim 2 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein the accessory part is a pump head. ### Claim 3 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein the plurality of accessory parts are mutually different pump heads. ### Claim 4 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein the recognition apparatus is a recognition apparatus that works contactlessly. ### Claim 5 (depends on 4) The peristaltic pump having the accessory part in accordance with claim 4, wherein the recognition apparatus is based on a magnetic coding. ### Claim 6 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein the coding comprises at least one magnet; and wherein the detection unit comprises at least one magnetic field sensor. ### Claim 7 (depends on 6) The peristaltic pump having the accessory part in accordance with claim 6, wherein the at least one magnetic field sensor is associated with the respective at least one magnet. ### Claim 8 (depends on 6) The peristaltic pump having the accessory part in accordance with claim 6, wherein the at least one magnet is a permanent magnet. ### Claim 9 (depends on 8) The peristaltic pump having the accessory part in accordance with claim 8, wherein the coding comprises a state of the permanent magnet that relates to the position and/or orientation of the permanent magnet. ### Claim 10 (depends on 9) The peristaltic pump having the accessory part in accordance with claim 9, wherein the position of the permanent magnet comprises at least a first spacing or a second spacing from the laboratory device. ### Claim 11 (depends on 9) The peristaltic pump having the accessory part in accordance with claim 9, wherein the permanent magnet is oriented such that the north pole or the south pole of the permanent magnet faces the laboratory device. ### Claim 12 (depends on 6) The peristaltic pump having the accessory part in accordance with claim 6, wherein the at least one magnetic field sensor is a Hall sensor. ### Claim 13 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein the plurality of magnets are spaced apart from one another. ### Claim 14 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein the detection unit comprises a corresponding number of a plurality of magnetic field sensors associated with respective magnet from the plurality of magnets. ### Claim 15 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein the five possible states are selected from the group of members consisting of: a lack of the magnet; a positioning of the magnet at a first spacing from the laboratory device, with the north pole of the magnet facing the laboratory device; a positioning of the magnet at a first spacing from the laboratory device, with the south pole of the magnet facing the laboratory device; a positioning of the magnet at a second spacing from the laboratory device, with the north pole of the magnet facing the laboratory device; and a positioning of the magnet at a second spacing from the laboratory device, with the south pole of the magnet facing the laboratory device. ### Claim 16 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein at least one magnet is positioned at a first spacing from the laboratory device and at least one magnet is positioned at a second spacing from the laboratory device. ### Claim 17 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein the recognition apparatus comprises an evaluation unit associated with a respective magnetic field sensor, the evaluation unit being configured to evaluate an output signal of the magnetic field sensor corresponding to a strength of a magnetic field of a respective magnet. ### Claim 18 (depends on 1) The peristaltic pump having the accessory part in accordance with claim 1, wherein at least one of a housing of the accessory part and a housing of the laboratory device comprises, at least in an effective region of a magnet, a material that at least substantially does not influence the strength of the magnetic field. ### Claim 19 (depends on 18) The peristaltic pump having the accessory part in accordance with claim 18, wherein the material that at least substantially does not influence the strength of the magnetic field is selected from the group of members consisting of a non-metallic material, a non-magnetic material, a non-ferromagnetic material and combinations of the foregoing.