Drug pump systems and methods

• US 6,241,704 B1
• Filed: 06/02/1999
• Issued: 06/05/2001
• Est. Priority Date: 11/22/1901
• Status: Expired due to Fees

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Sims Deltec, Inc.
• Inventors: Blomquist, Michael L., Peterson, Thomas L.
• Primary Examiner(s): MENDEZ, MANUEL A
• Application Number:
  US09/324,305
• Time in Patent Office: 734 Days
• Field of Search: 604/30, 604/31, 604/65, 604/66, 604/67, 604/151-155, 604/131, 365/185.33, 128/DIG.12, 128/13
• US Class Current: 604/65
• CPC Class Codes: A61M 2005/1405 Patient controlled analgesia [PCA]
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/3553 remote, e.g. between patient's home and doctor's office
• CPC Class Codes: A61M 2205/3561 local, e.g. within room or hospital
• CPC Class Codes: A61M 2205/3576 with non implanted data transmission devices, e.g. using external transmitter or receiver
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/59 Aesthetic features, e.g. distraction means to prevent fears of child patients
• CPC Class Codes: A61M 2205/60 with identification means
• CPC Class Codes: A61M 2205/6018 providing set-up signals for the apparatus configuration
• CPC Class Codes: A61M 2205/70 with testing or calibration facilities
• CPC Class Codes: A61M 2205/702 automatically during use
• CPC Class Codes: A61M 2209/02 Equipment for testing the apparatus
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• 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: F04B 2203/0208 Power
• CPC Class Codes: F04B 2205/05 Pressure after the pump outlet
• CPC Class Codes: F04B 2205/09 : Flow through the pump
• CPC Class Codes: F04B 2205/10 : Inlet temperature
• CPC Class Codes: F04B 2205/503 : of gas in a liquid flow, e.g. gas bubbles
• CPC Class Codes: F04B 2207/041 : of flow
• CPC Class Codes: F04B 2207/042 : of pressure
• CPC Class Codes: F04B 2207/043 : of time
• CPC Class Codes: F04B 2207/70 : Warnings
• CPC Class Codes: F04B 2207/701 : Sound
• CPC Class Codes: F04B 43/082 : the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
• CPC Class Codes: F04B 49/065 : and making use of computers
• CPC Class Codes: F04B 51/00 : Testing machines, pumps, or pumping installations
• CPC Class Codes: F04D 15/0088 : Testing machines
• CPC Class Codes: G09B 19/003 : Repetitive work cycles; Sequence of movements
• CPC Class Codes: G09B 23/28 : for medicine
• CPC Class Codes: G09B 5/02 : with visual presentation of the material to be studied, e.g. using film strip
• CPC Class Codes: G16H 20/17 : delivered via infusion or injection
• CPC Class Codes: G16H 40/40 : for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades

Abstract

A menu driven reprogrammable drug pump is provided with a memory, such as flash memory, a display, a keyboard, and a communications port to allow a generic pump to be programmed with a desired pump application (therapy) program and patient specific settings. Programming and data transfer with another pump or a computer to and from the patient pump is by the communications port that allows local and/or remote communications with the pump. Flash memory stores the pump application program during use.

Claims

1. A drug pump for dispensing fluid to a patient, comprising:

a pump mechanism for pumping fluid;

a processor electrically connected to said pump mechanism for controlling the operation of said pump mechanism;

a memory electrically connected to said processor wherefrom said processor retrieves stored data to control and operate said pump mechanism, said memory further adapted to store patient specific settings;

a keyboard electrically connected to said processor for enabling input of at least the patient specific settings;

a display for displaying information relating to the operation of said pump; and

a port electrically connected to said processor and adapted to selectively mate with a cable for effecting communication between said pump and a device external of said pump, said port being further adapted to selectively mate with a remote patient dose cord to enable the patient to control the amount of fluid to be pumped by said pump or to mark an event for storage in said memory.

2. The drug pump of claim 1, wherein said device external to said pump comprises another drug pump having its own processor adapted to selectively mate with said port.

3. The drug pump of claim 1, wherein said device external to said pump comprises a computer for controlling the operation of said pump adapted to selectively mate with said port.

4. The drug pump of claim 1, further comprising:

communicative means for simultaneously enabling voice communication between the patient and a caregiver and data communication between said pump and said device external to said pump.

5. The drug pump of claim 1, wherein said device external to said pump comprises a modem.

6. A pump apparatus for pumping fluid to a patient, comprising:

a pump mechanism for pumping fluid;

a memory for storing operational data for said pump mechanism;

processor means electrically connected to said memory for retrieving said operational data to control the operation of said pump mechanism; and

at least one port means operable as either a communications port for effecting communication with a device external of said pump mechanism or as an input port for receiving input from the patient or a user for specifying the amount of fluid to be pumped by said pump mechanism.

7. The apparatus of claim 6, further comprising:

a digital simultaneous voice and data modem connected to said port means; and

a cable for connecting said modem to said port means for effecting communication with said external device.

8. The apparatus of claim 6, further comprising:

a remote dose cord to be mated to said communications port to enable the patient or the user to at least control the amount of fluid to be pumped by said pump mechanism.

9. The apparatus of claim 6, wherein said external device comprises another drug pump.

10. The apparatus of claim 6, wherein said external device comprises a computer.

11. A pump apparatus for pumping fluid to a patient, comprising:

a pump mechanism for pumping fluid;

a memory;

at least one operations program for controlling the operation of said pump mechanism and an access code program stored in said memory;

controller means utilizing said operations program for controlling the operation of said pump, said controller means having a locked state and an unlocked state, wherein, to prevent any tampering with the operation of said pump mechanism, an access code is required to place said controller means in the unlocked state from the locked state before the operations controlled by said operations program could be altered;

a keyboard, wherein said access code required for altering the operations of said operations program is entered via said keyboard, wherein said access code program places said controller means in the locked state after the operations controlled by said operations program has been altered.

12. A method of operating a pump for pumping fluid to a patient, said pump including a pump mechanism for pumping the fluid, processor means for controlling the operation of said pump mechanism, a communications port adaptable to effect communication with an external device or to receive an input signal from the patient, a memory electrically connected to said processor means for storing a boot program, at least one application program and a communications program, said boot program being configured to launch at least said one application program, said method comprising the steps of:

applying power to said processor means and said memory;

executing said boot program;

launching and executing said one application program to control the operation of said pump;

connecting a communications cable to said communications port;

launching and executing said communications program to enable said processor means to communicate with said external device via said communications cable;

disconnecting said communications cable from said communications port;

connecting another cable to said communications port, said another cable enabling the patient to input signals to said processor means to at least control the amount of fluid to be pumped by said pump.

13. The method of claim 12, further comprising the step of:

before disconnecting said communications cable, connecting said communications cable to communicative means for simultaneously enabling voice communication between the patient and a caregiver and data communication between said pump and said external device.

14. The method of claim 12, further comprising the steps of:

before disconnecting said communications cable, connecting said pump to a computer via said communications cable; and

controlling the operation of said pump through control signals sent from said computer.

15. A method of operating a drug pump comprising the steps of:

unlocking an access lock of a controller of the pump to allow an operations program stored in a memory of the pump to be altered, the access lock accessed through a code entered on a keyboard of the pump;

altering the operations program of the pump through the keyboard of the pump;

after the operations program is altered, starting the pump to pump fluid, wherein the access lock of the controller is automatically locked preventing the operations program from being altered until the access lock is reaccessed through the code entered on the keyboard.