WO2004103463B1 - Implantable medical device with a nonhermetic battery - Google Patents

Implantable medical device with a nonhermetic battery

Info

Publication number
WO2004103463B1
WO2004103463B1 PCT/US2004/014804 US2004014804W WO2004103463B1 WO 2004103463 B1 WO2004103463 B1 WO 2004103463B1 US 2004014804 W US2004014804 W US 2004014804W WO 2004103463 B1 WO2004103463 B1 WO 2004103463B1
Authority
WO
WIPO (PCT)
Prior art keywords
control module
implantable medical
components
battery
interconnect member
Prior art date
Application number
PCT/US2004/014804
Other languages
French (fr)
Other versions
WO2004103463A1 (en
Inventor
Erik R Scott
Carl D Wahlstrand
Robert M Skime
Craig L Schmidt
Original Assignee
Medtronic Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medtronic Inc filed Critical Medtronic Inc
Priority to EP04751949A priority Critical patent/EP1624923B1/en
Priority to AT04751949T priority patent/ATE482741T1/en
Priority to DE602004029351T priority patent/DE602004029351D1/en
Publication of WO2004103463A1 publication Critical patent/WO2004103463A1/en
Publication of WO2004103463B1 publication Critical patent/WO2004103463B1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/375—Constructional arrangements, e.g. casings
    • A61N1/37514—Brain implants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/378—Electrical supply

Abstract

An implantable medical device (IMD) including a nonhermetic battery is described. The IMD includes components and a power source module that includes the nonhermetic battery. The IMD also includes a barrier to substantially impede movement of substances from the nonhermetic battery to the components. The barrier may include a hermetic feedthrough, a gel, a polymer, or a solid electrolyte within the nonhermetic battery, and a seal member. The barrier may also be a material that encapsulates the nonhermetic battery and a getter within the IMD. In some embodiments, the IMD comprises a modular IMD including an interconnect member. In that case, the barrier may include a material that fills at least a portion of a void defined by the interconnect member. A length and a cross-sectional area of the interconnect member may also act as a barrier.

Claims

AMENDED CLAIMS [received by the International Bureau on 13 December 2004 (13.12.2004); original claims 1, 3, 16, 21 amended, remaining claims unchanged. (4 pages)]
CLAIMS:
1 _ An implantable medical evice comprising: components; a power source module thuit includes a hermetic power source module housing and a nonhermetic battery located wiihin the hermetic power source module housing; an electrical conductor tb;ιιt delivers power from the nonhermetic battery to the components; and a barrier between the components and the nonhermetic battery that substantially impedes movement of substances from the nonhermetic battery to the components.
2. The implantable medical device of claim 1 , wherein the barrier comprises a hermetic feedthrough and the electrical conductor extends through the feedthrough.
3. The implantable medical device of claim 2, wherein the hermetic feedthrough forms a part of the power source tnodule housing.
4. The implantable medical device of claim 2, further comprising a control module including a control module housing, wherein the components are located within the control module housing and the hermetic feedthrough forms a part of the control module housing.
5. The implantable medica] device of claim 1, wherein the barrier comprises a seal member.
AMENDED SHEET (ARTICLE 19) 32
6. The implantable medical d svice of claim 5. further comprising: a control module including a control module housing, wherein the components are located within the control module ihousing; and an interconnect member to couple the control module and the power source module- wherein the conductor extends through the interconnect member, wherein the seal member is positioned within the interconnect member one of where the interconnect member is coupled to the control Inodule and where the interconnect member is coupled to the power source module.
7. The implantable medical 4evice of claim 5, wherein the seal member comprises one of an o-ring. a gasket, or a rum e seal.
8. The implantable medical ievice of claim 1 , further comprising: a control module including a control module housing, wherein the components are located within the control mo ule housing; and an interconnect member to couple the control module and the power source module, wherein the intercoπnec member defines a void and the conductor extends through the interconnect me bei void, wherein the barrier comprises a material that fills at least a portion of the interconnect member void and is substantially impermeable by the substances from the nonhermeuV (battery.
9. The implantable medical device of claim 8, wherein the material comprises at least one of a polymer, a resin, a fill© or a finely divided filler.
10. The implantable medical device of claim 8 or 9, wherein the material substantially absorbs the substances from the tonhermetic battery.
11. The implantable medical device of any one of claims 8 to 10, wherein the interconnect member is crimped at a location where the material fills the interconnect member void to create a reduced ^cross-sectional area region.
AMENDED SHEET (ARTICLE 19) 33
12. The implantable medical cfevice of claim 1, wherein the barrier comprises a material that encapsulates at leasi la portion of the nonhermetic battery and is substantially impermeable by the substances frdi the nonhermetic battery.
13. The implantable medical <Jevice of claim 12, wherein the material comprises one of a polymer and a resin.
14. The implantable medical <jevice of c) aim 1 , wherein the barrier comprises a getter that one of substantially absorbs <|r reacts with the substances from the nonhermetic battery.
15. The implantable medical device of claim 14, wherein the getter comprises one of a water getter, a salt getter, a hydrofluoric acid getter, or an organic getter.
16. The implantable medical tflevice of claim 14 or IS, further comprising: a control module including a control module housing, wherein the components are located within the control module housing; and an interconnect member I4> couple the control module and the power source module, wherein the conductor atten s through the interconnect member, wherein the getter is located within at least one of the power source module housing, the interconnect member, or the control module housing.
17. The implantable medical device of claim 1 , wherein the barrier comprises one of a gel, a polymer, or a solid electro I ι te within the nonhermetic battery that substantially eliminates the movement of substances from the nonhennetic battery.
18. The implantable medical < levice of claim 1. further comprising: a control module including a control module housing, wherein the components are located within the control module housing; and an interconnect member 1 - > couple the control module and the power source module, wherein the conductor extends through the interconnect member, wherein the barrier comprises at least one of ;ι| length of the interconnect member that dissipates movement of substances from tbq nonhermetic battery to the components or a cross- sectional area of the interconnect member that substantially impedes movement of substances from the nonhermetic loattery to the components.
19. The implantable medical dlevice of claim 18, wherein the interconnect member is crimped to create a reduced-area region.
20. The implantable medical device of claim 1, wherein the components comprise control electronics.
21. A method of manufacturing an implantable medical device, the method comprising: forming a control module including components; forming a control module housing to house the components; forming a power source iiiiodule including a nonhermetic battery; forming a hermetic powiπr source module housing to house the nonhermetic battery; forming an interconnect i smber to couple the control module and the power source module, the interconnect iinember including an electrical conductor that extends through the interconnect memben to deliver power from the nonheiroetic battery to the components; and including a barrier bet een the components within the control module and the nonhermetic battery within the q.wer source module that substantially impedes movement of substances from the nonher ric battery to the components.
AMENDED SHEET (ARTICLE 19) 35
PCT/US2004/014804 2003-05-16 2004-05-12 Implantable medical device with a nonhermetic battery WO2004103463A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04751949A EP1624923B1 (en) 2003-05-16 2004-05-12 Implantable medical device with a nonhermetic battery
AT04751949T ATE482741T1 (en) 2003-05-16 2004-05-12 IMPLANTABLE MEDICAL DEVICE HAVING A NON-HERMETIC BATTERY
DE602004029351T DE602004029351D1 (en) 2003-05-16 2004-05-12 IMPLANTABLE MEDICAL DEVICE WITH A NON-HERMETIC BATTERY

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US47126203P 2003-05-16 2003-05-16
US60/471,262 2003-05-16
US10/835,233 US7263401B2 (en) 2003-05-16 2004-04-29 Implantable medical device with a nonhermetic battery
US10/835,233 2004-04-29

Publications (2)

Publication Number Publication Date
WO2004103463A1 WO2004103463A1 (en) 2004-12-02
WO2004103463B1 true WO2004103463B1 (en) 2005-04-07

Family

ID=33479280

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/014804 WO2004103463A1 (en) 2003-05-16 2004-05-12 Implantable medical device with a nonhermetic battery

Country Status (5)

Country Link
US (2) US7263401B2 (en)
EP (1) EP1624923B1 (en)
AT (1) ATE482741T1 (en)
DE (1) DE602004029351D1 (en)
WO (1) WO2004103463A1 (en)

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WO2004103463A1 (en) 2004-12-02
EP1624923A1 (en) 2006-02-15
US7263401B2 (en) 2007-08-28
ATE482741T1 (en) 2010-10-15
DE602004029351D1 (en) 2010-11-11
US20080021511A1 (en) 2008-01-24
US7881796B2 (en) 2011-02-01
US20050004618A1 (en) 2005-01-06

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