System and method for electric pulse based activation of biological samples

Patent metadata

Field	Value
Publication number	US-10968423-B2
Application number	US-201815905463-A
Country	US
Kind code	B2
Filing date	Feb 26, 2018
Priority date	Feb 26, 2018
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

Disclosed herein are multi-cuvette cartridges, flow cells, and electrical pulse systems for treatment of large volumes of biological samples with pulsed electric fields. The multi-cuvette cartridges systems may include mechanical motors for automatic positioning and alignment between the cuvettes and the electrodes of the electrical pulse systems. The flow cell systems may include fluidic systems, such as pumps, nozzles and valves, which may operate in coordination with the electrical systems for efficient exposition of biological samples. Embodiments having flow cell systems that allow “on-demand” production of activated sample are also disclosed.

First claim

The invention claimed is:

1. An electric pulse generation system comprising:
a sample loader comprising a cartridge rail and a pair of sample loader electrodes adjacent to the cartridge rail, wherein the cartridge rail is configured to receive a cuvette cartridge that comprises a plurality of cuvettes, and wherein each cuvette of the cuvette cartridge comprises a respective pair of electrodes;
a motor configured to move the cuvette cartridge along the cartridge rail using a mechanical lever that contacts the cuvette cartridge;
a pulse generating circuitry configured to generate an electrical pulse between the pair of sample loader electrodes; and
a controller communicatively coupled to the motor and the pulse generating circuitry, and configured to:
cause the motor to move the cuvette cartridge to a first position, wherein, in the first position, a respective pair of electrodes of a first cuvette of the plurality of cuvettes is electrically coupled and physically coupled to the pair of sample loader electrodes;
cause the pulse generating circuitry to generate an electrical pulse between the pair of electrodes of the sample loader to cause a pulsed electric field in the first cuvette; and
cause the motor to move the cuvette cartridge from the first position to a second position, wherein, in the second position, a respective pair of electrodes of a second cuvette of the plurality of cuvettes is electrically coupled and physically coupled to the pair of electrodes of the sample loader.

2. The electric pulse generation system of claim 1 , wherein the mechanical lever comprises a screw lever.

3. The electric pulse generation system of claim 1 , wherein the cartridge rail comprises a plurality of mechanical stops, and wherein each mechanical stop is associated with a position of a plurality of positions.

4. The electric pulse generation system of claim 1 , wherein the cartridge rail comprises a linear cartridge rail.

5. The electric pulse generation system of claim 1 , wherein the cartridge rail comprises a circular cartridge rail.

6. The electric pulse generation system of claim 1 , wherein the controller comprises a memory that comprises a first protocol associated with an activation of platelet in a platelet rich plasma sample.

7. The electric pulse generation system of claim 6 , wherein the memory comprises a second protocol associated with an activation of platelet in a blood sample.

8. The electric pulse generation system of claim 1 , comprising the cuvette cartridge, wherein the cuvette cartridge comprises an insertable frame structure to receive the cuvettes.

9. The electric pulse generation system of claim 1 , comprising the cuvette cartridge, wherein the cuvette cartridge comprises a monolithic structure that includes the plurality of cuvettes.

Assignees

• Gen Electric

Inventors

• Caiafa Antonio
• Neculaes Vasile Bogdan

Classifications

• G01N33/49

  Blood {(chemical methods for determining blood cell populations G01N33/5094; chemical analysis of blood groups or blood types G01N33/80)} · CPC title

• G01N33/48707 Primary

  by electrical means (G01N33/49, G01N33/493 take precedence) · CPC title

• A61K35/00

  Medicinal preparations containing materials or reaction products thereof with undetermined constitution · CPC title

• G01N35/025

  having a carousel or turntable for reaction cells or cuvettes · CPC title

• A61B5/150755

  Blood sample preparation for further analysis, e.g. by separating blood components or by mixing · CPC title