METHOD AND APPARATUS FOR A SMALL POWER SOURCE FOR AN IMPLANTABLE DEVICE

• US 20070179532A1
• Filed: 12/15/2006
• Published: 08/02/2007
• Est. Priority Date: 12/15/2005
• Status: Active Grant

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Root, Michael, Maile, Keith, Youker, Nick
• Granted Patent: US 7,860,564 B2
• Time in Patent Office: Days
• US Class Current: 607/2
• CPC Class Codes: A61B 2562/0217 Electrolyte containing
• CPC Class Codes: A61B 5/02 Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
• CPC Class Codes: A61N 1/3752 Details of casing-lead connections
• CPC Class Codes: A61N 1/378 Electrical supply
• CPC Class Codes: A61N 1/3787 from an external energy source
• CPC Class Codes: H01M 10/0422 Cells or battery with cylindrical casing
• CPC Class Codes: H01M 10/0436 Small-sized flat cells or batteries for portable equipment
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 6/08 with cup-shaped electrodes
• CPC Class Codes: H05K 13/00 Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/49108 Electric battery cell making
• CPC Class Codes: Y10T 29/4911 including sealing

Abstract

One embodiment of the present subject matter includes an apparatus including a non-thin-film battery, the apparatus including a cylindrical implantable housing, electronics disposed in the implantable housing, and a battery disposed in the implantable housing, the battery comprising: a stack including at least one substantially planar anode having a thickness greater than 1 micrometer and at least one substantially planar cathode having a thickness greater than 1 micrometer, a housing enclosing the stack of substantially planar anodes and cathodes, and terminals interconnecting the battery and the electronics, wherein the battery has a volume of less than 0.024 cubic centimeters. The present subject matter includes an implantable medical device having a bobbin battery.

Claims

1. An apparatus including a non-thin-film battery, comprising:

an implantable housing;

electronics disposed in the implantable housing; and

a battery disposed in the implantable housing, the battery comprising;

a stack including at least one substantially planar anode having a thickness greater than 1 micrometer and at least one substantially planar cathode having a thickness greater than 1 micrometer;

a battery housing enclosing the stack of substantially planar anodes and cathodes and displacing less than approximately 0.024 cubic centimeters; and

terminals interconnecting the battery and the electronics.

2. The apparatus of claim 1, wherein the implantable housing has a cylindrical cross section, and the battery and electronics are disposed along the axis of the cylinder.

3. The apparatus of claim 1, wherein the electronics include neurostimulation electronics.

4. The apparatus of claim 1, wherein the battery is a primary battery.

5. The apparatus of claim 1, wherein the battery is adapted to provide approximately 33 milliamp-hours per month.

6. The apparatus of claim 1, wherein the at least one substantially planar cathode includes compressed powder.

7. The apparatus of claim 1, wherein the battery is a first battery, and further comprising a second battery connected in series with the battery.

8. The apparatus of claim 1, wherein the battery is a first battery, and further comprising a second battery connected in parallel with the battery.

9. The apparatus of claim 1, wherein the electronics include a sensor.

10. The apparatus of claim 9, wherein the sensor includes a pressure sensor.

11. The apparatus of claim 9, wherein the electronics includes sensor circuitry and stimulation circuitry.

12. The apparatus of claim 1, wherein an outer surface of the housing is coated with a biocompatible coating.

13. The apparatus of claim 12, wherein the biocompatible coating includes a drug eluting coating.

14. A method for construction an implantable device, comprising:

shaping an exterior of a housing of the implantable device, including modeling the exterior to provide reduced hydrodynamic drag in conditions measured at the implant site;

stacking at least one non-thin-film anode with at least one non-thin-film cathode into a stack; and

disposing the stack into a battery housing having a volume of less than approximately 0.024 cubic centimeters, the battery housing providing a form shaped to fit the interior of the housing of the implantable device.

15. The method of claim 14, further comprising hermetically sealing the battery housing and electronics into the housing of the implantable device.

16. The method of claim 14, further comprising modeling the exterior of the housing of the implantable device to reduce turbulence.

17. The method of claim 14, further comprising modeling the exterior of the housing of the implantable device to reduce stagnation.

18. The method of claim 14, further comprising modeling the exterior of the housing of the implantable device to reduce fluid sheer stress.

19. An apparatus, comprising:

an implantable device housing;

electronics disposed in the implantable device housing;

a battery disposed in the implantable device housing, the battery comprising;

a battery housing;

an anode connected to a first terminal; and

a cathode connected to a second terminal,

wherein the anode and the cathode are arranged in a bobbin configuration.

20. The apparatus of claim 19, wherein the anode and the cathode are annular and concentric.

21. The apparatus of claim 19, wherein the electronics include neurostimulation electronics.

22. The apparatus of claim 19, wherein the electronics include a wireless transmitter.

23. The apparatus of claim 19, wherein the cathode includes a pellet of cathode, and the anode is a pellet of anode.

24. The apparatus of claim 23, wherein the battery includes a single anode electrode connected to a terminal.