Programmable implantable pump with accessory reservoirs and multiple independent lumen catheter

• US 20020156462A1
• Filed: 03/15/2002
• Published: 10/24/2002
• Est. Priority Date: 04/18/2001
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Advanced Bionics Corporation (Sonova Holding AG)
• Inventors: Stultz, Mark R.
• Granted Patent: US 7,083,593 B2
• Time in Patent Office: Days
• US Class Current: 604/891.1
• 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 2205/3523 using telemetric means
• CPC Class Codes: A61M 2209/045 for filling, e.g. for filling reservoirs
• CPC Class Codes: A61M 5/14276 specially adapted for implantation
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• 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 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00

Abstract

An implantable pump system includes: (1) an implantable pump having separate chambers or reservoirs, at least one of which is coupled to the pump so as to allow a programmable rate of delivery of the medication stored in the pump chamber or reservoir, the other chambers or reservoirs of which are at least capable of delivery of a bolus via a pressurized, and potentially independently programmable chamber or pumping mechanism; (2) a patient controller that enables the actuation of the pump so as to administer a bolus or programmed rate of the first, second, third, . . . or nth medication contained in the independent chambers or reservoirs coupled to the pump; and (3) a catheter having two or more reservoir-specific inlet ports directed into respective lumens of the catheter. In one embodiment, the distal tips of the respective lumens may be directed to different sites within the patient'"'"'s body, thereby allowing site specific and independent delivery of the medications stored in the respective pump chambers or reservoirs to be administered to different body sites at independently controlled times and rates. In another embodiment, the distal tips of the respective lumens are directed, more or less, to the same body site or tissue region, thereby providing for the independent delivery of multiple medications to the same regions at independently controlled times and rates.

Claims

1. An implantable pump system comprising:

an implantable pump having multiple separate chambers or reservoirs, each of which is filled with a prescribed medication, and each of which is coupled to respective pump means that allows a programmable rate of delivery of the medication stored in the respective chamber;

a patient controller that enables the actuation of the pump means so as to administer a bolus or programmed rate of the medication contained in the respective chamber or reservoir coupled to the pump means; and

a multi-lumen catheter having respective lumens, each lumen of which is directed into a respective chamber or reservoir, and wherein each lumen terminates at a distal tip through which medication contained within the respective chamber or reservoir may be dispensed under control of the pump means.

2. The pump system of claim 1 wherein the distal tips of the respective lumens are directed to different sites within a patient'"'"'s body, whereby site specific and independent delivery of the medications stored in the respective pump chambers or reservoirs are administered to different body sites at independently controlled times and rates.

3. The pump system of claim 1 wherein the distal tips of the respective lumens are directed to the same site within a patient'"'"'s body, whereby independent delivery of the medications stored in the respective pump chambers or reservoirs are administered to the same body site at independently controlled times and rates.

4. The pump system of claim 1 further including at least one physiological sensor coupled to the pump means, the at least one physiological sensor including means for sensing a physiological parameter of the patient, which physiological parameter is representative of a patient condition that may be treated through medication, and wherein the pump means includes means for responding to the sensed physiological parameter by automatically delivering a protocol of at least one medication through the multi-lumen catheter aimed at treating the sensed patient condition.

5. The pump system of claim 1 wherein the physiological parameter sensed by the at least one physiological sensor is selected from the group comprising:

muscle tone, heart rate, respiration rate, blood oxygen saturation, tissue impedance, physical activity, body position, body temperature, and glucose level.

6. The pump system of claim 1 wherein the number of multiple separate chambers or reservoirs within the implantable pump comprises three.

7. The pump system of claim 1 wherein the number of multiple separate chambers or reservoirs within the implantable pump comprises at least four.

8. The pump system of claim 1 wherein the prescribed medications stored in the separate chambers or reservoirs are selected from the group comprising drugs, biologics, proteins, and genetic materials.

9. The pump system of claim 1 wherein each lumen within the multi-lumen catheter has a diameter that is substantially equal to the diameter of the other lumens within the catheter.

10. The pump system of claim 1 wherein the multi-lumen catheter comprises a coaxial multi-lumen catheter.

11. An implantable pump system comprising:

(1) an implantable pump having a plurality of separate medication-storage chambers, at least one of which plurality of medication-storage chambers is coupled to a pump means that allows a programmable rate of delivery of medication stored in the corresponding medication-storage chamber, and wherein the other medication-storage chambers include means for delivery of a bolus via a pressurized, and independently programmable pumping mechanism;

(2) a patient controller that enables the actuation of the pump means and pumping mechanism so as to administer a bolus or programmed rate of medications contained in the medication-storage chambers;

(3) a catheter having a plurality of independent lumens, wherein each lumen is in fluid communication with a respective one of the plurality of separate medication-storage chambers, whereby, under control of the pump means and pumping mechanism, a medication stored in one of the plurality of separate medication-storage chambers may be controllably dispensed through at least one of the lumens of said catheter.

13. The implantable pump system of claim 12 further including patient controller means that may be placed in telecommunicative contact with the implantable control means for controlling the pump means to administer a bolus or programmed rate of medication.

14. The implantable pump system of claim 13 further including a plurality of implantable sensor means connected to the implantable control means for sensing physiological parameters.

15. The implantable pump system of claim 14 further including back telemetry means for telemetering data sensed by the implantable sensor means back to the patient controller means.

16. The implantable pump system of claim 15 wherein the implantable sensor means are further for sensing status data associated with the operation of the implantable pump system.

12. An implantable pump system comprising:

implantable pump means for dispensing medication;

a plurality of separate medication-storage chambers coupled to the pump means;

a catheter having a plurality of independent lumens, wherein each lumen is in fluid communication with a respective one of the plurality of separate medication-storage chambers; and

implantable control means coupled with the pump means for controlling the pump means so that a programmable rate of delivery of medication may be dispensed through each of the plurality of lumens within the catheter.