# US 2019/0376883 A1 · Automatic analysis device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0376883 A1 - Document ID: US20190376883A1 - Status: Published application - Kind: A1 - Application number: 16/480,337 - Filed: 2018-01-18 - Published: 2019-12-12 - Earliest claimed: 2017-02-07 - Assignees: Hitachi High-Technologies Corporation - Applicants: Hitachi High-Technologies Corporation - Inventors: Koki YOKOYAMA; Nobuyuki ISOSHIMA; Takenori OKUSA; Shigeyuki SASAKI; Michiharu WATANABE - Web page: https://patentgrep.com/patent/US20190376883A1 ## CPC - G01N 1/44: Sample treatment involving radiation, e.g. heat - G01N 35/025: {having a carousel or turntable for reaction cells or cuvettes} - B01L 7/00: Heating or cooling apparatus (autoclaves B01J3/04); Heat insulating devices - B01L 7/52: {with provision for submitting samples to a predetermined sequence of different temperatures, e.g. for treating nucleic acid samples} - B01L 9/06: Test-tube stands; Test-tube holders - B01L 2300/0645: Electrodes - B01L 2300/08: Geometry, shape and general structure - B01L 2300/1805: Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks - B01L 2300/1827: using resistive heater - B01L 2300/1883: using thermal insulation - G01N 35/02: using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations {(G01N35/0098 and G01N35/0099 take precedence)} - G01N 2035/00356: {Holding samples at elevated temperature (incubation)} - G01N 2035/00376: {Conductive heating, e.g. heated plates} - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - B01L: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE ## Abstract Temperature uniformity of a reaction liquid in a plurality of reaction containers of an automatic analysis device is maintained by a heat block. A strip-shaped heater heats the heat block, and is wound and attached on an outer circumference of the heat block so that both end regions of the strip-shaped heater are adjacent to each other. The strip-shaped heater includes a heat generating resistor that is heated by applying an electric current, an insulating film sandwiching the heat generating resistor, and first and second electrical feed lines that are attached to both end portions of the heat generating resistor and supply power to the heat generating resistor. The width of the heat generating resistor in both end regions of the strip-shaped heater is formed to be narrower than the width of the heat generating resistor in the other region thereof. ## Claims ### Claim 1 An automatic analysis device, comprising: a heat block which includes a plurality of positions on which reaction containers in which reaction liquid mixing a reagent and a sample is injected are mounted; and a strip-shaped heater which heats the heat block, wherein the strip-shaped heater is wound and attached on an outer circumference of the heat block so that both end regions of the strip-shaped heater are adjacent to each other, wherein the strip-shaped heater includes a heat generating resistor which generates heat by applying an electric current, an insulating film which electrically insulates with respect to an outside portion by disposing to sandwich the heat generating resistor, and a first and a second electricity feeding lines which are attached to both end portions of the heat generating resistor and supply power to the heat generating resistor, and wherein the width of the heat generating resistor in both end regions of the strip-shaped heater is formed to be narrower than the width of the heat generating resistor in the other region thereof. ### Claim 2 An automatic analysis device, comprising: a heat block which includes a plurality of positions on which reaction containers in which reaction liquid mixing a reagent and a sample is injected are mounted; and a strip-shaped heater which heats the heat block, wherein the strip-shaped heater is wound and attached on an outer circumference of the heat block so that both end regions of the strip-shaped heater are adjacent to each other, wherein the strip-shaped heater includes a heat generating resistor which generates heat by applying an electric current, an insulating film which electrically insulates with respect to an outside portion by disposing to sandwich the heat generating resistor, and a first and a second electricity feeding lines which are attached to both end portions of the heat generating resistor and supply power to the heat generating resistor, wherein both end regions of the strip-shaped heater are disposed side by side in a direction perpendicular to the longitudinal direction of the strip-shaped heater, wherein the heat generating resistor has a uniform cross-sectional area width perpendicular to an electric current applying direction through which the first electricity feeding line and the second electricity feeding line are passed, and wherein a junction portion to which the first electricity feeding line is joined and a junction portion to which the second electricity feeding line is joined are positioned on both end portion sides of the heat generating resistor other than a position aligned in a direction perpendicular to the longitudinal direction of the strip-shaped heater. ### Claim 3 (depends on 1) The automatic analysis device according to claim 1, wherein the heat generating resistor is disposed so that both end regions of the strip-shaped heater face each other with a predetermined interval being sandwiched therebetween by both ends in the longitudinal direction of the strip-shaped heater being folded. ### Claim 4 (depends on 1, 2) The automatic analysis device according to claim 1 or 2, wherein the first electricity feeding line and the second electricity feeding line are attached to extend in directions opposite to each other. ### Claim 5 (depends on 1, 2) The automatic analysis device according to claim 1 or 2, wherein holes are provided in both end portion regions of the heat generating resistor. ### Claim 6 (depends on 1) The automatic analysis device according to claim 1, wherein both end regions of the strip-shaped heater are disposed side by side in a direction perpendicular to the longitudinal direction of the strip-shaped heater.