Communications system for an implantable device and a drug dispenser

• US 6,824,512 B2
• Filed: 04/17/2002
• Issued: 11/30/2004
• Est. Priority Date: 12/30/1999
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Warkentin, Dwight H., Ferek-Petric, Bozidar
• Primary Examiner(s): Hindenburg, Max F.
• Assistant Examiner(s): ASTORINO, MICHAEL C
• Application Number:
  US10/123,958
• Publication Number:
  US 20020111542A1
• Time in Patent Office: 958 Days
• Field of Search: 600/300-301, 600/508, 607/29-30, 607/59-60, 604/66, 604/65, 128/898, 128/903, 128/904, 128/905, 128/920-925, 340/573, 340/870, 340/309, 206/531, 206/533
• US Class Current: 600/300
• CPC Class Codes: A61N 1/37282 characterised by communication with experts in remote locations using a network
• CPC Class Codes: Y10S 128/903 Radio telemetry
• CPC Class Codes: Y10S 128/904 Telephone telemetry
• CPC Class Codes: Y10S 128/92 Computer assisted medical diagnostics

Abstract

A closed loop system for monitoring drug dose, intake and effectiveness includes a pill dispenser in data communications with at least one implantable medical device. The system is preferably implemented in a web-enabled environment in which a remote data center communicates with the implantable devices (IMDs) in a patient via a programmer or the pill dispenser. Th data center includes high speed computers and databases relating to patient history and device information. A physician or clinician may access the remote data center to review and monitor the IMDs remotely. More specifically, the IMDs are adapted to chronically monitor the pill dispenser to thereby log and document drug dose, patient compliance with prescriptive regimens and as well to monitor drug efficacy in the patient. The system further provides a dynamic drug management system, compatible with a web-enabled interactive data communication environment, that accurately monitors dose and specific drug effectiveness in a patient to enhance patient care.

Claims

1. A drug delivery and management system in chronic communication between a pill dispenser and at least one implanted medical device (IMD) comprising:

means for monitoring the number of pills in a pill dispenser;

means for indicating pill deposition from a container in said pill dispenser;

means for monitoring the deposition of the pills incorporated in an implanted medical device;

means for preprogramming a drug therapy regimen implemented in said implanted medical device; and

means for chronically monitoring and alerting a patient when said drug does not influence a trend curve.

2. The system of claim 1 wherein said means for monitoring the number of pills includes a microprocessor.

3. The system of claim 2 wherein said means for monitoring the number of pills further includes a telemetric antenna in communication with said microprocessor.

4. The system of claim 1 wherein said means for indicating pill deposition includes a piezoelectric film.

5. The system of claim 1 wherein one of a voltage signal and impedance change is used to monitor the number of pills in the pill dispenser.

6. A capacitor cell forming a pill dispenser having wireless communication between at least one implanted medical device and external devices, including a remote database center, the combination comprising:

the pill dispenser having a piezoelectric film;

means for sensing breakage of a container incorporated in said capacitor cell;

means for producing a signal when a pill is removed from the pill dispenser, said signal being different from ECG, EMG, EMR or other body-generated signal;

means for identifying the signal as an indication that a seal has been opened and that a pill has been ingested by a patient; and

means for chronically monitoring the pill dispenser in conjunction with the patient'"'"'s physiological data and reaction thereof.

7. The combination of claim 6 wherein said means for sensing breakage includes one of a voltage signal and impedance change to sense breakage of a container.

8. The combination of claim 6 wherein said means for producing a signal when a pill is removed from said container includes means for confirming breakage of a layer.

9. The combination of claim 7 wherein said means for sensing breakage includes means for transferring a signal to the at least one implanted medical device to trigger a timer to monitor pill ingestion by the patient.