IP Library › Granted Patent US 12,208,394
Granted Patent B2
US 12,208,394 · App. 17/233,712 · Granted Jan 28, 2025

Printed circuit board heater for an amplification module

Inventors: Boris Andreyev (Foster City, CA); Brian Ciopyk (Santa Clara, CA); Victor Briones (Gilroy, CA); Jonathan Hong (San Jose, CA); David Swenson (Santa Clara, CA); Gregory Loney (Los Altos, CA); Adam De La Zerda (Los Altos, CA); Steven Chu (Menlo Park, CA)
Assignee: Visby Medical, Inc.
B01L7/525C12Q1/686H05B1/025H05B3/26B01L2300/0816B01L2300/0883B01L2300/0887B01L2300/1805B01L2300/1827B01L2300/1883H05B2203/003H05B2203/021
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Quick Facts
Patent No.
US 12,208,394
App. No.
17/233,712
Granted
Jan 28, 2025
Kind
B2
Abstract

An apparatus includes a substrate, a first heating element, and a second heating element. The substrate includes a first portion, a second portion, and a third portion that is between the first portion and the second portion. The first portion is characterized by a first thermal conductivity, the second portion is characterized by a second thermal conductivity, and the third portion is characterized by a third thermal conductivity. The third thermal conductivity is less than the first thermal conductivity and the second thermal conductivity. The first heating element is coupled to the first portion of the substrate, and is configured to produce a first thermal output. The second heating element is coupled to the second portion of the substrate, and configured to produce a second thermal output. The second thermal output is different from the first thermal output.

Claims (48)

1. A method, comprising:

conveying a sample into a diagnostic device including an amplification module, the amplification module including a flow member and a heater assembly, the flow member defining a plurality of flow channels through which the sample can flow from an inlet opening to an outlet opening, the flow member defining a flow axis;

the heater assembly including a substrate, a first heating element, and a second heating element, the heater assembly coupled to the flow member such that the first heating element is between a first portion of the substrate and a first portion of the plurality of flow channels, and the second heating element is between a second portion of the substrate and a second portion of the plurality of flow channels, a third portion of the substrate separating the first portion of the substrate and the second portion of the substrate;

the substrate defining a first plurality of apertures that separate the third portion of the substrate from the first portion of the substrate and a second plurality of apertures that separate the second portion of the substrate from the third portion of the substrate;

the substrate including a first connection portion between a first aperture from the first plurality of apertures and an adjacent second aperture from the first plurality of apertures and a second connection portion between a first aperture from the second plurality of apertures and an adjacent second aperture from the second plurality of apertures, the first connection portion offset from the second connection portion along the flow axis; and

actuating the diagnostic device to:

supply a first current to the first heating element such that the first heating element maintains the first portion of the plurality of flow channels at a first temperature;

supply a second current to the second heating element such that the second heating element maintains the second portion of the plurality of flow channels at a second temperature, the second temperature different from the first temperature; and

produce a flow of the sample within the plurality of flow channels such that a temperature difference between a first flow channel from the plurality of flow channels and a second flow channel from the plurality of flow channels is minimized.

2. The method of claim 1 , wherein:

the first current is supplied to the first heating element at a first time; and

the second current is supplied to the second heating element at a second time, the second time after the first time.

3. The method of claim 1 , wherein:

the flow of the sample within the plurality of flow channels causes a volume of the sample to be cycled between the first temperature and the second temperature such that a nucleic acid within the volume of the sample is amplified.

4. The method of claim 3 , wherein the volume of the sample is at least 10 microliters.

5. The method of claim 3 , wherein:

the plurality of flow channels forms a serpentine flow path having at least 30 amplification channels, the flow member and the heater assembly coupled together such that the volume of the sample is cycled between the first temperature and the second temperature when the volume of the sample flows within each amplification channel of the serpentine flow path; and

the actuating the diagnostic device produces the flow of the sample within the serpentine flow path at a flow rate such that the volume of the sample is conveyed through the at least 30 amplification channels in 15 minutes or less, the volume of the sample being at least 10 microliters.

6. The method of claim 1 , wherein the third portion of the substrate defines an aperture.

7. A method, comprising:

conveying a sample into a diagnostic device, the diagnostic device including a flow member coupled to a first heater assembly and a second heater assembly and to a substrate, the flow member defining a flow path having a plurality of flow channels, the first heater assembly including a first heating element and a second heating element, the second heater assembly including a third heating element and a fourth heating element, the first heater assembly and the second heater assembly coupled to the substrate,

the substrate including a first plurality of apertures, a second plurality of apertures, a first connection portion between a first aperture from the first plurality of apertures and an adjacent second aperture from the first plurality of apertures and a second connection portion between a first aperture from the second plurality of apertures and an adjacent second aperture from the second plurality of apertures, the first connection portion offset from the second connection portion along a flow axis; and

actuating the diagnostic device to:

supply, at a first time, a first current to the first heating element and the third heating element such that the first heating element maintains at least a first portion of a first channel from the plurality of flow channels at a first temperature and the third heating element maintains at least a second portion of the first channel from the plurality of flow channels at a second temperature;

produce, at a second time, a flow of the sample within the flow path, the second time after the first time, the flow member coupled to the substrate such that a temperature difference between a first flow channel from the plurality of flow channels and a second flow channel from the plurality of flow channels is minimized; and

supply, at a third time, a second current to the second heating element and the fourth heating element such that the second heating element maintains at least a first portion of a second channel from the plurality of flow channels at the first temperature and the fourth heating element maintains at least a second portion of the second channel from the plurality of flow channels at the second temperature, the third time different from the first time.

8. The method of claim 7 , wherein the third time is after the second time.

9. The method of claim 7 , wherein the actuating further causes the diagnostic device to remove, at a fourth time, the first current from the first heating element and the third heating element, the fourth time occurring when the flow of the sample remains within the second channel.

10. A method, comprising:

conveying a sample into a diagnostic device, the diagnostic device including a substrate, a flow member coupled to a first heater assembly and a second heater assembly, the flow member defining a flow path having a plurality of flow channels, the first heater assembly including a first heating element, the second heater assembly including a second heating element and a third heating element, the first heater assembly coupled to the flow member such that the first heating element is aligned with a first portion of the flow path, the second heater assembly coupled to the flow member such that and the second heating element and the third heating element are each aligned with a second portion of the flow path, the substrate including a first plurality of apertures, a second plurality of apertures, a first connection portion between a first aperture from the first plurality of apertures and an adjacent second aperture from the first plurality of apertures, and a second connection portion between a first aperture from the second plurality of apertures and an adjacent second aperture from the second plurality of apertures, the first connection portion aligned with a first flow channel from the plurality of flow channels and the second connection portion aligned with a second flow channel from the plurality of flow channels, the first flow channel being different than the second flow channel; and

actuating the diagnostic device to:

supply a first current to the first heating element such that the first heating element maintains the first portion of the flow path at a first temperature;

produce a flow of the sample within the flow path;

supply a second current to the second heating element; and

supply a third current to the third heating element, the third current supplied independently from the second current, the second current and the third current supplied such that the second heating element and the third heating element collectively maintain the second portion of the flow path at a second temperature.

11. The method of claim 10 , wherein the flow member, the first heater assembly and the second heater assembly are collectively configured to amplify a nucleic acid within the sample when the sample flows through the flow path.

12. The method of claim 10 , wherein the flow member, the first heater assembly and the second heater assembly are collectively configured to amplify a nucleic acid within the sample via a thermal cycling amplification or an isothermal amplification.

13. The method of claim 10 , wherein:

the flow path is a serpentine flow path;

the flow member, the first heater assembly and the second heater assembly are collectively configured to thermally cycle the sample flowing through the serpentine flow path to amplify a nucleic acid within the sample;

the first heating element being aligned with at least a first portion of a first flow channel within the serpentine flow path;

the second heating element being aligned with at least a second portion of the first flow channel within the serpentine flow path; and

the third heating element being aligned with at least a last flow channel within the serpentine flow path.

14. The method of claim 10 , wherein:

the flow of the sample within the flow path causes a volume of the sample to be cycled between the first temperature and the second temperature such that a nucleic acid within the volume of the sample is amplified.

15. The method of claim 10 , wherein:

the flow path is a serpentine flow path having at least at least 30 amplification channels, the flow member, the first heater assembly, and the second heater assembly coupled together such that a volume of the sample is cycled between the first temperature and the second temperature when the volume of the sample flows within each amplification channel of the serpentine flow path.

16. The method of claim 15 , wherein the actuating the diagnostic device produces the flow of the sample within the serpentine flow path at a flow rate such that the volume of the sample is conveyed through the at least 30 amplification channels in 15 minutes or less, the volume of the sample being at least 10 microliters.

Assignments (4)
SECURITY INTEREST Recorded Mar 7, 2025
From: VISBY MEDICAL, INC.
To: ANKURA TRUST COMPANY, LLC
Reel/Frame 070442/0884 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2021
From: ANDREYEV, BORIS; CIOPYK, BRIAN; BRIONES, VICTOR; HONG, JONATHAN; SWENSON, DAVID; LONEY, GREGORY; DE LA ZERDA, ADAM
To: CLICK DIAGNOSTICS, INC.
Reel/Frame 055961/0244 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2021
From: CHU, STEVEN
To: CLICK DIAGNOSTICS, INC.
Reel/Frame 055961/0324 →
CHANGE OF NAME Recorded Apr 19, 2021
From: CLICK DIAGNOSTICS, INC.
To: VISBY MEDICAL, INC.
Reel/Frame 055967/0567 →
Continuity (3)
Division 15494145 · Apr 21, 2017
Provisional Application 62326289 · Apr 22, 2016
Related Publication 20210237090A1 · Aug 5, 2021
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