IP Library › Granted Patent US 12692470
Granted Patent B2
US 12692470 · App. 18/028,217 · Granted Jul 28, 2026

Method and device for automatic cell centrifugal cleaning and medium replacement

Inventors: Xiaoliang Guo (Shenzhen, CN); Jialin Yao (Shenzhen, CN); Yuanfang Shang (Shenzhen, CN)
Assignee: SHENZHEN CELLBRI BIO-INNOVATION TECHNOLOGY CO., LTD.
C12M47/04B04B13/00C12M41/44C12M41/48
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Quick Facts
Patent No.
US 12692470
App. No.
18/028,217
Granted
Jul 28, 2026
Kind
B2
Abstract

A method for automatic cell centrifugal cleaning and medium replacement includes: obtaining a cell volume and a critical value of a centrifugal device after centrifugal stabilization of the centrifugal device; and performing, according to a magnitude relationship between the cell volume and the critical value of the centrifugal device, a velocity reduction process on a centrifugal chamber by combining the cell volume and the centrifugal chamber information. The extracted volume is changed by velocity-reduced rotation, and the rotation at a reduced velocity is adjusted according to the magnitude relationship between the cell volume and the critical value of the centrifugal device. The optimal cleaning and medium replacement effect on cells of different volumes can be realized. A high capture rate and a high medium replacement rate are obtained and maximized from different volumes of cell samples in the fixed parameters of the centrifugal chamber.

Claims (34)

1 . A method for automatic cell centrifugal cleaning and medium replacement, comprising:

obtaining a cell volume and a critical value of a centrifugal device after centrifugal stabilization of the centrifugal device; and

performing, according to a magnitude relationship between the cell volume and the critical value of the centrifugal device, a velocity reduction process on a centrifugal chamber by combining the cell volume and centrifugal chamber information;

wherein the centrifugal chamber information comprises chamber length information, chamber height information, and chamber radius information, wherein

the chamber length information is a distance from an outer wall of the centrifugal chamber to an outlet position of the centrifugal device;

the chamber height information is a height of the centrifugal chamber; and

the chamber radius information is a radius of the centrifugal chamber.

2 . The method according to claim 1 , wherein the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is less than the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the cell volume, the chamber length information, and the chamber radius information, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

3 . The method according to claim 1 , wherein the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is equal to the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the chamber length information and the chamber radius information, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

4 . The method according to claim 1 , wherein the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is larger than the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the cell volume, the chamber length information, the chamber radius information, and the height of the centrifugal chamber, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

5 . An electronic device, comprising a memory, a processor, and a computer program, wherein the computer program is stored on the memory and configured to run on the processor, wherein when the computer program is executed by the processor, steps of the method according to claim 1 are implemented.

6 . The electronic device according to claim 5 , wherein in the method, the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is less than the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the cell volume, the chamber length information, and the chamber radius information, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

7 . The electronic device according to claim 5 , wherein in the method, the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is equal to the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the chamber length information and the chamber radius information, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

8 . The electronic device according to claim 5 , wherein in the method, the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is larger than the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the cell volume, the chamber length information, the chamber radius information, and the height of the centrifugal chamber, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

9 . A non-transient computer-readable storage medium, storing a computer program, wherein when the computer program is executed by a processor, steps of the method according to claim 1 are implemented.

10 . The non-transient computer-readable storage medium according to claim 9 , wherein in the method, the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is less than the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the cell volume, the chamber length information, and the chamber radius information, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

11 . The non-transient computer-readable storage medium according to claim 9 , wherein in the method, the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is equal to the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the chamber length information and the chamber radius information, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

12 . The non-transient computer-readable storage medium according to claim 9 , wherein in the method, the step of performing, according to the magnitude relationship between the cell volume and the critical value of the centrifugal device, the velocity reduction process on the centrifugal chamber by combining the cell volume and the centrifugal chamber information comprises:

when the cell volume is larger than the critical value of the centrifugal device, calculating a rotation velocity for a velocity reduction of the centrifugal chamber according to the cell volume, the chamber length information, the chamber radius information, and the height of the centrifugal chamber, and performing the velocity reduction process on the centrifugal chamber according to the rotation velocity for the velocity reduction of the centrifugal chamber.

13 . A device for automatic cell centrifugal cleaning and medium replacement, comprising:

an acquisition module configured to obtain a cell volume and a critical value of a centrifugal device after centrifugal stabilization of the centrifugal device; and

a velocity reduction and medium replacement module configured to perform, according to a magnitude relationship between the cell volume and the critical value of the centrifugal device, a velocity reduction process on a centrifugal chamber by combining the cell volume and centrifugal chamber information;

wherein the centrifugal chamber information comprises chamber length information, chamber height information, and chamber radius information, wherein

the chamber length information is a distance from an outer wall of the centrifugal chamber to an outlet position of the centrifugal device;

the chamber height information is a height of the centrifugal chamber; and

the chamber radius information is a radius of the centrifugal chamber.