User interface and controls for a pump device

• US 8,764,408 B2
• Filed: 01/25/2013
• Issued: 07/01/2014
• Est. Priority Date: 03/17/2005
• Status: Active Grant

• Current Assignee: Smisson-Cartledge Biomedical LLC
• Original Assignee: Smisson-Cartledge Biomedical LLC
• Inventors: Smisson, Hugh F. III, Cartledge, Richard G., Field, David C., Lewis, Harvey A. Jr., York, Frederick J.
• Primary Examiner(s): FREAY, CHARLES GRANT
• Application Number:
  US13/750,254
• Publication Number:
  US 20130138041A1
• Time in Patent Office: 522 Days
• Field of Search: 417/63, 417/313, 604 65- 67, 604/890.1, 604/131
• US Class Current: 417/44.2
• CPC Class Codes: A61M 1/0281 Apparatus for treatment of blood or blood constituents prior to transfusion, e.g. washing, filtering or thawing
• CPC Class Codes: A61M 2205/127 with provisions for heating or cooling
• CPC Class Codes: A61M 2206/10 Flow characteristics
• CPC Class Codes: A61M 2206/14 Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: A61M 5/36 with means for eliminating or preventing injection or infusion of air into body dialysis systems, blood oxygenators A61M1/14; haemofiltration equipment A61M1/34; automatic tube cut-off A61M39/281
• CPC Class Codes: A61M 5/365 Air detectors A61M5/1684 takes precedence; in extracorporeal blood circuits A61M1/3626
• CPC Class Codes: A61M 5/44 having means for cooling or heating the devices or media

Abstract

A pump system selectably and dynamically controls the flow rate of a fluid being delivered to a patient'"'"'s body over a wide range of flow rates. The pump system includes an infusion tubing, a pumping mechanism, a motor drive assembly in mechanical communication with the pumping mechanism, a user input control, and an electronic controller in electrical communication with and at least partially controlling the motor drive assembly. The electronic controller include a digital signal processing controller in electrical communication with the motor drive assembly that is configured to receive a signal from the user input control and to cause power to be supplied to the motor drive assembly in response at least partially to the signal from the user input control. The pump system may selectably deliver fluid at rates from about 1 milliliter per hour to at least about 3000 milliliters per minute.

Claims

1. A pump system, comprising:

an infusion tubing for delivering a fluid;

a motor driven pump in mechanical communication with the infusion tubing and configured to pump the fluid through the infusion tubing;

a heat exchanger cartridge in fluid communication with the infusion tubing and removably coupled to at least one thermal element for heating or cooling the fluid;

a central controller in electrical communication with the motor driven pump and the at least one thermal element; and

a user interface in electrical communication with the central controller, the user interface comprising a prime input and a bolus input;

wherein the central controller is configured to prime the infusion tubing by causing the motor driven pump to deliver the fluid through the infusion tubing in response to selection of the prime input and then, after priming the infusion tubing, to automatically deliver the fluid through the infusion tubing at a previously selected flow rate; and

wherein the central controller is configured to deliver the fluid by causing the motor driven pump to deliver a predetermined bolus volume of the fluid through the infusion tubing at a predetermined default bolus flow rate, or a user-selected bolus flow rate, in response to selection of the bolus input and then, after delivering the predetermined bolus volume, to automatically return to delivering the fluid through the infusion tubing at a previously selected flow rate or stop delivery of the fluid, according to a state of the pump prior to selection of the bolus input.

2. The pump system of claim 1, wherein the central controller is configured to automatically prime the infusion tubing after depression and release of the prime input.

3. The pump system of claim 1, wherein the central controller is configured to manually prime the infusion tubing during continuous depression of the prime input.

4. The pump system of claim 1, wherein the user interface further comprises a first maximum pressure input for selecting a first maximum pressure of the fluid, and wherein the central controller is configured to automatically decrease a flow rate of the fluid upon detection of the first maximum pressure and then increase the flow rate of the fluid to a preselected flow rate unless the first maximum pressure is again detected.

5. The pump system of claim 4, wherein the user interface further comprises a second maximum pressure input for selecting a second maximum pressure of the fluid, wherein the second maximum pressure is greater than the first maximum pressure, and wherein the central controller is configured to automatically shut down the motor driven pump upon detection of the second maximum pressure.

6. The pump system of claim 1, wherein the user interface further comprises a pressure increase input, and wherein the central controller is configured to increase a pressure of the fluid by causing the flow rate of the fluid to increase in response to selection of the pressure increase input.

7. The pump system of claim 1, wherein the user interface further comprises a pressure decrease input, and wherein the central controller is configured to decrease a pressure of the fluid by causing the flow rate of the fluid to decrease in response to selection of the pressure decrease input.

8. The pump system of claim 1, wherein the user interface further comprises a standard infusion input, and wherein the central controller is configured to deliver the fluid by causing the motor driven pump to deliver the fluid through the infusion tubing at a predetermined standard flow rate in response to selection of the standard infusion input.

9. The pump system of claim 8, wherein the user interface further comprises a rapid infusion input, wherein the central controller is configured to deliver the fluid by causing the motor driven pump to deliver the fluid through the infusion tubing at a predetermined rapid flow rate in response to selection of the rapid infusion input, and wherein the predetermined rapid flow rate is greater than the predetermined standard flow rate.

10. The pump system of claim 1, wherein the user interface comprises one or more flow rate inputs, and wherein the central controller is configured to adjust the bolus flow rate of the fluid in response to selection of the flow rate input before or after selection of the bolus input.

11. The pump system of claim 1, wherein the user interface further comprises a flow rate increase input, and wherein the central controller is configured to increase the flow rate of the fluid by causing the motor driven pump to deliver the fluid through the infusion tubing at an increased rate in response to selection of the flow rate increase input.

12. The pump system of claim 1, wherein the user interface further comprises a flow rate decrease input, and wherein the central controller is configured to decrease the flow rate of the fluid by causing the motor driven pump to deliver the fluid through the infusion tubing at a decreased rate in response to selection of the flow rate decrease input.

13. The pump system of claim 1, wherein the central controller is configured to deliver the fluid without heating or cooling the fluid by causing the motor driven pump to deliver the fluid while the thermal element is off.

14. The pump system of claim 1, wherein the user interface further comprises a selected flow rate indicator and an actual flow rate indicator.

15. The pump system of claim 1, wherein the user interface further comprises an alert indicator, and wherein the central controller is configured to activate the alert indicator in response to the flow rate of the fluid being outside of a predetermined range.

16. The pump system of claim 1, wherein the user interface further comprises an alert indicator, and wherein the central controller is configured to activate the alert indicator in response to a pressure of the fluid being outside of a predetermined range.

17. The pump system of claim 1, wherein the user interface further comprises an alert indicator, and wherein the central controller is configured to activate the alert indicator in response to a temperature of the fluid being outside of a predetermined range.

18. A pump system, comprising:

an infusion tubing for delivering a fluid;

a motor driven pump in mechanical communication with the infusion tubing and configured to pump the fluid through the infusion tubing;

a heat exchanger cartridge in fluid communication with the infusion tubing and removably coupled to at least one thermal element for heating or cooling the fluid;

a central controller in electrical communication with the motor driven pump and the at least one thermal element; and

a user interface in electrical communication with the central controller, the user interface comprising a first maximum pressure input for selecting a first maximum pressure of the fluid;

wherein the central controller is configured to automatically decrease a flow rate of the fluid upon detection of the first maximum pressure and then increase the flow rate of the fluid to a preselected flow rate unless the first maximum pressure is again detected.

19. The pump system of claim 18, wherein the user interface further comprises a second maximum pressure input for selecting a second maximum pressure of the fluid, wherein the second maximum pressure is greater than the first maximum pressure, and wherein the central controller is configured to automatically shut down the motor driven pump upon detection of the second maximum pressure.