IP Library Granted Patent US 10,851,426
Granted Patent B2
US 10,851,426 · App. 16/706,254 · Granted Dec 1, 2020

System and method for isolating and analyzing cells

Inventors: Kalyan Handique (Ann Arbor, MI); Priyadarshini Gogoi (Ann Arbor, MI); Yi Zhou (Plymouth, MI); Saedeh Sepehri (Ypsilanti, MI); Christopher Siemer (Ypsilanti, MI)
Assignee: Bio-Rad Laboratories, Inc.
C12Q1/6886B01L3/502761C12Q1/6834C12Q1/6841G01N33/57415G01N33/57423B01L2200/0668B01L2200/16B01L2300/087B01L2300/0819B01L2300/0867B01L2400/0487B01L2400/086C12M23/12G01N2800/52
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Quick Facts
Patent No.
US 10,851,426
App. No.
16/706,254
Granted
Dec 1, 2020
Kind
B2
Abstract

A system and method for isolating cells, comprising: a substrate having a broad surface; an array comprising a set of wells defined at the broad surface of the substrate, each well including: a base surface, an open surface directly opposing the base surface, defined at the broad surface of the substrate, and configured to receive one of a single cell and a single cluster of cells from a direction perpendicular to the broad surface of the substrate, and a set of channels that fluidly couple each well to at least one adjacent well; wherein the set of wells includes an interior subset and an exterior subset fluidly coupled to and surrounding the interior subset by way of the set of channels; and a fluid delivery module surrounding the array and fluidly coupled to each well in the set of wells.

Claims (33)

1. A system for isolating and analyzing a population of target particles in single-particle format, the system comprising:

a substrate having a broad surface and an inlet;

a set of wells defined at the broad surface of the substrate and in fluid communication with the inlet, the set of wells arranged in a packed configuration,

wherein each well in the set of wells is configured to receive and retain a target particle of the population of target particles and comprises:

a base surface defined within the substrate, and

an open surface directly opposing the base surface, defined at the broad surface of the substrate, and sized to receive a single particle of the population of target particles from a direction perpendicular to the broad surface of the substrate,

wherein the open surface of each well has a characteristic diameter equal to that of the base surface, and

wherein the set of wells comprises an interior subset and an exterior subset surrounding the interior subset; and

a plate coupled to the substrate and defining a fluid reservoir between the plate and the set of wells of the substrate.

2. The system of claim 1 , wherein the set of wells comprises at least 250,000 individual wells.

3. The system of claim 1 , wherein each of the set of wells has a depth of at least 25 microns.

4. The system of claim 1 , wherein each of the set of wells comprises a first set of fluid channels configured for fluid exchange within the system.

5. The system of claim 4 , wherein the first set of fluid channels is positioned at the base region of each well of the set of wells.

6. The system of claim 4 , wherein the first set of fluid channels fluidly couple each well to at least one adjacent well in the set of wells.

7. The system of claim 4 , further comprising a fluid delivery module comprising a pump configured to deliver a process reagent into each of the set of wells, by way of the fluid reservoir and the first set of fluid channels.

8. The system of claim 7 , wherein the process reagent comprises a stain.

9. The system of claim 7 , wherein the process reagent comprises a reagent for an mRNA-targeted assay.

10. The system of claim 7 , wherein the process reagent comprises a reagent for a polymerase chain reaction (PCR) process.

11. The system of claim 1 , further comprising a fluid delivery module fluidly coupled to each well in the set of wells by a second set of channels, wherein each of the second set of channels comprises an identical length.

12. The system of claim 1 , wherein the substrate further comprises a perimeter channel fluidly coupled to each well of the exterior subset of the set of wells, the exterior subset of the set of wells positioned at an outermost edge of the array.

13. The system of claim 1 , further comprising a cell removal module comprising a pump and configured to remove a target particle of the population of target particles from the set of wells upon application of force by the pump.

14. A method for isolating and analyzing a population of target particles in single-particle format, the method comprising:

providing a device comprising:

a substrate having a broad surface, an inlet, and a set of wells defined at the broad surface of the substrate and in fluid communication with the inlet, the set of wells arranged in a packed configuration and comprising an interior subset and an exterior subset surrounding the interior subset, wherein each well in the set of wells is configured to receive and retain a target particle of the population of target particles and comprises:

a base surface defined within the substrate, and an open surface directly opposing the base surface, defined at the broad surface of the substrate, and sized to receive a single particle of the population of target particles from a direction perpendicular to the broad surface of the substrate, and

a plate coupled to the substrate and defining a fluid reservoir between the plate and the set of wells of the substrate;

receiving the population of target particles into the inlet of the substrate, thereby capturing and isolating the population of target particles in single-particle format within the set of wells;

receiving a process reagent into each of the set of wells, thereby providing diffusive delivery of the process reagent to each of the set of wells; and

delivering a target particle of the population of target particles into a cell removal module, upon application of a force to contents of a well of the set of wells.

15. The method of claim 14 , wherein each of the set of wells comprises a first set of fluid channels configured for fluid exchange within the system, the method further comprising diffusing the process reagent through each of the set of wells by way of the fluid reservoir and the first set of fluid channels.

16. The method of claim 14 , wherein receiving the process reagent comprises receiving a stain into the set of wells of the substrate.

17. The method of claim 14 , wherein receiving the process reagent comprises receiving a reagent configured for one of a PCR process and an mRNA-targeted assay.

18. The method of claim 14 , wherein the device further comprises a fluid delivery module fluidly coupled to each well in the set of wells by a second set of channels, wherein each of the second set of channels comprises an identical length.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2020
From: CELSEE, INC.
To: BIO-RAD LABORATORIES, INC.
Reel/Frame 054269/0742 →
CHANGE OF NAME Recorded Sep 24, 2020
From: CELSEE DIAGNOSTICS, INC.
To: CELSEE, INC.
Reel/Frame 053881/0555 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2019
From: HANDIQUE, KALYAN; GOGOI, PRIYADARSHINI; ZHOU, YI; SEPEHRI, SAEDEH; SIEMER, CHRISTOPHER
To: DENOVO SCIENCES, INC.
Reel/Frame 051206/0806 →
CHANGE OF NAME Recorded Dec 6, 2019
From: DENOVO SCIENCES, INC.
To: CELSEE DIAGNOSTICS, INC.
Reel/Frame 051219/0281 →
Continuity (4)
Continuation 15821329 · Nov 22, 2017
Continuation 14289155 · May 28, 2014
Provisional Application 61829537 · May 31, 2013
Related Publication 20200115764A1 · Apr 16, 2020