IP Library › Granted Patent US 12,310,921
Granted Patent B2
US 12,310,921 · App. 18/424,080 · Granted May 27, 2025

Fluid transfer devices and methods of use

Inventor: Matthias Janssen (Meinerzhagen, DE)
Assignee: ICU Medical, Inc.
A61J1/2003A61J2200/74
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Quick Facts
Patent No.
US 12,310,921
App. No.
18/424,080
Filed
Jan 26, 2024
Granted
May 27, 2025
Kind
B2
Art Unit
3753
USPC
141/83
Abstract

Systems and methods for the transfer of medical fluid are provided. A medical fluid transfer system may comprise a pump configured to transfer fluid through a tube assembly having a first connector configured to couple to a source container and a second connector configured to couple to a target container. The medical fluid transfer system may also comprise a destination sensor configured to output information about the target container. The medical fluid transfer system may further comprise a control system configured to operate the pump based on an operational setting associated with fluid volume; receive measurement data representing a measurement of the target container by the destination sensor, and adjust the operational setting based on an observed volume of fluid transferred to the target container.

Claims (40)

1. A medical fluid transfer system comprising:

a pump configured to transfer fluid through a tube assembly having a first connector configured to couple to a source container and a second connector configured to couple to individual target containers;

a destination sensor; and

a control system configured to:

receive an instruction to perform a batch transfer operation comprising transfer of a desired volume of a medical fluid to each of a plurality of target containers;

operate the pump based on the instruction and an operational setting associated with fluid volume to perform a first segment of the batch transfer operation, wherein the first segment comprises transfer of fluid from the source container to a first target container;

delay a second segment of the batch transfer operation for a time interval after completion of the first segment, wherein a second target container is coupled to the second connector during the time interval;

after the time interval, automatically operate the pump based on the instruction and the operational setting to perform the second segment of the batch transfer operation, wherein the second segment comprises transfer of fluid from the source container to the second target container;

receive measurement data representing a measurement of the second target container by the destination sensor;

determine a difference between a transferred volume of the medical fluid and the desired volume of the medical fluid based at least partly on the measurement data and a fluid property of the medical fluid;

adjust the operational setting based on the difference; and

operate the pump to continue the batch transfer operation based on the operational setting that has been adjusted.

2. The medical fluid transfer system of claim 1 , further comprising the tube assembly.

3. The medical fluid transfer system of claim 1 , wherein the destination sensor comprises a weight sensor, and wherein the measurement data represents a weight of the second target container after operation of the pump.

4. The medical fluid transfer system of claim 1 , wherein the control system comprises a user interface, and wherein the measurement data is received by the control system via the user interface.

5. The medical fluid transfer system of claim 1 , wherein the control system comprises a first communication interface, wherein the destination sensor comprises a second communication interface, wherein the destination sensor transmits the measurement data via the second communication interface, and wherein the measurement data is received by the control system via the first communication interface.

6. The medical fluid transfer system of claim 1 , wherein the fluid property comprises a specific gravity of the medical fluid, and wherein the control system is further configured to determine the transferred volume of medical fluid based on the specific gravity and a weight of the second target container represented by the measurement data.

7. The medical fluid transfer system of claim 1 , wherein the control system is further configured to determine an adjustment to the operational setting based on a magnitude of the difference.

8. The medical fluid transfer system of claim 1 , wherein the pump is a peristaltic pump comprising a rotor with one or more lobes.

9. The medical fluid transfer system of claim 8 , wherein the operational setting indicates a quantity of rotations that the rotor is to be rotated for transfer of one or more volumetric units of the medical fluid.

10. The medical fluid transfer system of claim 8 , further comprising a housing, wherein the housing is configured to support the peristaltic pump in a position in which a plane of rotation of the rotor is substantially orthogonal to a direction of gravity during operation of the peristaltic pump.

11. The medical fluid transfer system of claim 8 , wherein the peristaltic pump is configured to operation at a plurality of speed settings.

12. The medical fluid transfer system of claim 1 , wherein the control system is further configured to determine that the medical fluid has been transferred to a threshold quantity of target containers during the batch transfer operation, wherein the measurement data is received in response to the control system determining that the medical fluid has been transferred to the threshold quantity of target containers.

13. A method for calibrating a medical fluid transfer system, the method comprising:

under control of a control system of the medical fluid transfer system, the control system comprising one or more computer processors configured to execute specific instructions:

receiving an instruction to perform a batch transfer operation comprising transfer of a desired volume of a medical fluid to each of a plurality of target containers;

operating a pump based on the instruction and an operational setting associated with fluid volume;

receiving measurement data representing a measurement of a target container of the plurality of target containers by a destination sensor;

determining a difference between a transferred volume of the medical fluid and the desired volume of the medical fluid based at least partly on the measurement data and a fluid property of the medical fluid; and

receiving an instruction to perform a batch transfer operation comprising transfer of a desired volume of a medical fluid to each of a plurality of target containers;

operating the pump based on the instruction and an operational setting associated with fluid volume to perform a first segment of the batch transfer operation, wherein the first segment comprises transfer of fluid from the source container to a first target container;

delaying a second segment of the batch transfer operation for a time interval after completion of the first segment, wherein a second target container is coupled to the second connector during the time interval;

after the time interval, automatically operating the pump based on the instruction and the operational setting to perform the second segment of the batch transfer operation, wherein the second segment comprises transfer of fluid from the source container to the second target container;

receiving measurement data representing a measurement of the second target container by a destination sensor;

adjusting the operational setting based on the difference.

14. The method of claim 13 , further comprising operating the pump to continue the batch transfer operation using the operational setting that has been adjusted.

15. The method of claim 13 , further comprising determining the transferred volume of the medical fluid based on the fluid property and the measurement data, wherein the fluid property comprises a specific gravity of the medical fluid, and wherein the measurement data represents a weight of the second target container.

16. The method of claim 13 , further comprising determining an adjustment to the operational setting based on a magnitude of the difference.

17. The method of claim 13 , further comprising loading the operational setting from a data store, wherein the operational setting indicates a quantity of rotations that a rotor of the pump is to be rotated for transfer of one or more volumetric units of the medical fluid.

18. The method of claim 13 , further comprising determining that the medical fluid has been transferred to a threshold quantity of target containers during the batch transfer operation, wherein the measurement data is received in response to the control system determining that the medical fluid has been transferred to the threshold quantity of target containers.

Assignments (1)
SECURITY INTEREST Recorded Oct 31, 2025
From: ICU MEDICAL, INC.; EXCELSIOR MEDICAL CORPORATION; TANGENT MEDICAL TECHNOLOGIES, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 073428/0588 →
Continuity (4)
Continuation 17648657 · Jan 21, 2022
Continuation PCTUS2021041891 · Jul 15, 2021
Provisional Application 63054568 · Jul 21, 2020
Related Publication 20240325246A1 · Oct 3, 2024
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