Fluid replacement device

• US 10,045,734 B2
• Filed: 01/14/2010
• Issued: 08/14/2018
• Est. Priority Date: 01/28/2009
• Status: Active Grant

• Current Assignee: Reprieve Cardiovascular, Inc. (Reprieve Cardiovascular LLC)
• Original Assignee: PLC Medical Systems, Inc. (Viveve Medical, Inc.)
• Inventors: Da Silva, J. Ricardo, Gronek, Wieslaw, Halpert, Andrew V., Rudko, Robert I., Tauscher, Mark
• Primary Examiner(s): Bosworth, Kami A
• Application Number:
  US12/657,144
• Publication Number:
  US 20100274217A1
• Time in Patent Office: 3,134 Days
• Field of Search: 604 29- 31, 604 65- 67, 604503, 6048901
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: A61B 5/20 for measuring urological functions restricted to the evaluation of the urinary system A61B5/4375 takes precedence
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61M 2202/0496 Urine
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/60 for the operation of medical equipment or devices
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

A console includes a weighing subsystem responsive to a first fluid source and a urine collection chamber. A pump infuses fluid from the first fluid source into a patient. A processing subsystem is responsive to the weighing subsystem. Based on the weight of the first fluid source and of the urine collection chamber, urine output and amount of fluid infused into the patient from the first fluid source are determined. A user can set a desired fluid balance and the amount of at least one additional fluid delivered. An actual fluid balance is calculated based on the determined urine output, the determined amount of fluid infused from the first fluid source, and the set amount of the additional fluid delivered. The pump is controlled based on actual fluid balance and set desired fluid balance so actual fluid balance becomes the same or approximately the same as the desired fluid balance.

Claims

1. A device for hydrating a patient, the device comprising:

a console including;

a weighing subsystem responsive to a first fluid source and responsive to a urine collection chamber,

a single pump associated with the console wherein the single pump is configured to pump fluid from the first fluid source directly into the patient to hydrate the patient, and

a processing subsystem responsive to the weighing subsystem and configured to determine an amount of fluid infused into the patient from the first fluid source and to determine the patient'"'"'s urine output, based on weight of the urine collection chamber and weight of the first fluid source, the processing subsystem further configured to control the pump to adjust operation of the pump based on the patient'"'"'s urine output and the amount of fluid infused into the patient from the first fluid source; and

a user interface in the console including;

means for setting a desired fluid balance for the patient, and

means for manually setting an amount of at least one additional fluid delivered to the patient;

the processing subsystem being responsive to the set desired fluid balance and the set amount of said at least one additional fluid delivered to the patient;

the processing subsystem further configured to;

calculate an actual fluid balance of the patient based on the determined urine output, the determined amount of fluid infused into the patient from the first fluid source, and the set amount of said at least one additional fluid delivered to the patient, and

further control said pump based on the actual fluid balance and the set desired fluid balance to pump fluid from the first fluid source until the actual fluid balance becomes the same as or approximately the same as the set desired fluid balance.

2. The device of claim 1 in which the user interface includes a display and the processing subsystem is configured to display the actual fluid balance, the set desired fluid balance, the determined urine output, the determined amount of fluid infused into the patient from the first fluid source, and the set amount of the at least one additional fluid delivered to the patient.

3. The device of claim 1 in which the processing subsystem is further configured to detect when the determined urine output is less than said set desired fluid balance and is configured, in response, to control the pump to infuse a minimum preset amount of fluid from the first fluid source.

4. The device of claim 1 in which the processing subsystem is further configured to detect when the determined urine output is greater than a total of the determined amount of fluid infused into the patient from the first fluid source and the set amount of the at least one additional fluid delivered to the patient and, in response, to control the pump to infuse fluid from the first fluid source until the actual fluid balance equals or approximates the set desired fluid balance.

5. The device of claim 1 further including means for setting an amount of at least one additional fluid expelled by the patient.

6. The device of claim 5 in which the processing subsystem is responsive to the set amount of the at least one additional fluid expelled by the patient and configured to calculate an actual fluid balance based on the determined urine output, the determined amount of fluid infused into the patient from the first fluid source, the set amount of said at least one additional fluid delivered to the patient, and the set amount of the at least one additional fluid expelled by the patient.

7. The device of claim 1 further including means for setting a bolus amount of fluid to be injected into the patient from the first fluid source.

8. The device of claim 7 in which the processing subsystem is further configured to be responsive to the set bolus amount and to control the pump until the actual fluid balance is the same as or approximately the same as the set bolus amount.

9. The device of claim 1 in which the console is an integrated console for coupling to a moveable pole.

10. A device for hydrating a patient, the device comprising:

a console including;

a weighing subsystem responsive to a first fluid source and responsive to a urine collection chamber,

a pump associated with the console and configured to only pump fluid from the first fluid source into the patient to hydrate the patient, and

a processing subsystem responsive to the weighing subsystem and configured to determine an amount of fluid infused into the patient from the first fluid source and to determine the patient'"'"'s urine output, based on weight of the urine collection chamber and weight of the first fluid source, the processing subsystem further configured to control the pump to adjust operation of the pump based on the patient'"'"'s urine output and the amount of fluid infused into the patient from the first fluid source; and

a user interface in the console including;

means for setting a desired fluid balance for the patient, and

means for manually setting an amount of at least one additional fluid delivered to the patient from a separate source;

the processing subsystem being responsive to the set desired fluid balance and the set amount of said at least one additional fluid delivered to the patient, the processing subsystem also configured to;

calculate an actual fluid balance of the patient based on the determined urine output, the determined amount of fluid infused into the patient from the first fluid source, and the set amount of said at least one additional fluid delivered to the patient, and

further control said pump based on the actual fluid balance and the set desired fluid balance to pump fluid from the first fluid source until the actual fluid balance becomes the same as or approximately the same as the set desired fluid balance.