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1. 发明专利

AT279233T 未知
公开(公告)号：AT279233T
公开(公告)日：2004-10-15
申请号：AT01946513
申请日：2001-06-19
申请人： MEDTRONIC INC
发明人： RORVICK ANTHONY W , BREYEN MARK D , PIGNATO PAUL A , MILTICH THOMAS P
IPC分类号： A61N1/05 , A61N1/375 , A61N1/39 , A61N1/40 , H01G9/00 , A61N1/372
摘要： Flat electrolytic capacitors and methods of making and using same in implantable medical devices (IMDs) are disclosed, the capacitors having a plurality of capacitor layers of an electrode stack formed of tailored numbers of anode and cathode layers to fill the available stack height space in the capacitor case. The capacitor is formed with a capacitor or electrode stack assembly having a stack assembly thickness or height HN that is tailored to fit a case wall height Hcw of the capacitor case with minimal wasted space and allowance for any stack height tolerance to. The electrode stack assembly comprises a plurality of N stacked capacitor layers each having a specified capacitor layer thickness or height. At least N1 capacitor layers have a first capacitor layer thickness T1 and N2 capacitor layers have a second capacitor layer thickness T2 where N=(N1+N2), and HN=N1*T1+T1*N2. The N capacitor layers are preferably formed of a cathode layer, and anode sub-assembly and at least one separator layer comprising one or more separator sheet on either side of the cathode layer and the anode-layer sub-assembly. The anode sub-assemblies of the N1 capacitor layers comprising x anode layers each having anode layer thickness tx stacked together, each anode layer having an anode layer thickness Tx. The anode sub-assemblies of the N2 capacitor layers comprising y anode layers each having anode layer thickness ty stacked together, each anode layer having an anode layer thickness Ty.

2. 发明专利

CA2413329A1 IMPLANTABLE MEDICAL DEVICE HAVING FLAT ELECTROLYTIC CAPACITOR WITH MINIATURIZED EPOXY CONNECTOR DROPLET 未知
公开(公告)号：CA2413329A1
公开(公告)日：2002-01-10
申请号：CA2413329
申请日：2001-06-21
申请人： MEDTRONIC INC
发明人： MILTICH THOMAS P , BREYEN MARK D , BOMSTAD TIMOTHY T , CLARKE MICHAEL E , NIELSEN CHRISTIAN S , RORVICK ANTHONY W
IPC分类号： A61N1/375 , A61N1/378 , A61N1/39 , A61N1/40 , G06F19/00 , H01G2/10 , H01G2/20 , H01G4/228 , H01G9/00 , H01G9/008 , H01G9/048 , H01G9/06 , H01G9/08 , H01G9/10
摘要： Implantable medical devices (IMDs) and their various components, including flat electrolytic capacitors for same, and methods of making and using same, particularly a simplified, miniature capacitor connector block and wiring harness utilizing an epoxy droplet and method of making same are disclosed. An electrode stack assembly and electrolyte are located within the interior cas e chamber of a hermetically sealed capacitor case. The electrode stack compris es a plurality of capacitor layers stacked in registration upon one another, ea ch capacitor layer comprising a cathode layer having a cathode tab, an anode su b- assembly comprising at least one anode layer having an anode tab, and a separator layer located between adjacent anode and cathode layers, whereby a ll adjacent cathode layers and anode layers of the stack are electrically insulated from one another by a separator layer. Anode terminal means extend through the capacitor case side wall for electrically connecting a plurality of the anode tabs to one another and providing an anode connection terminal at the exterior of the case. Cathode terminal means extend through or to an encapsulation area of the capacitor case side wall for electrically connecti ng a plurality of the cathode tabs to one another and providing a cathode connection terminal at the exterior of the case. A connector assembly is electrically attached to the anode connection terminal for making electrical connection with the anode tabs and to the cathode connection terminal for making electrical connection with the cathode tabs. A connector block is formed of an epoxy droplet adhered to the encapsulation area of the capacito r side wall surrounding and encapsulating the anode and cathode connection terminals and the electrical connections with the connector assembly. The connector block is formed on an encapsulation area of the case side wall of epoxy that is cured for a period of time under elevatedtemperature condition s while rotating the capacitor assembly.

4. 发明专利

DE60318482D1 未知
公开(公告)号：DE60318482D1
公开(公告)日：2008-02-14
申请号：DE60318482
申请日：2003-11-21
申请人： MEDTRONIC INC
发明人： HOSSICK-SCHOTT JOACHIM , NORTON JOHN D , RORVICK ANTHONY W , MAY STEVE J
IPC分类号： H01G9/04 , A61N1/39 , H01B13/00 , H01G9/042 , H01G9/048 , H01G9/052 , H01G9/06 , H01G9/08
摘要： The present invention generally relates to improved capacitors; in particular, the present invention provides advanced valve metal (AVM) anodes and methods for fabricating AVM anodes having complex surface and interior features for use in high energy density capacitors. Such anodes find use in high voltage capacitors incorporated into implantable medical devices (IMDs), among other uses. The AVM anodes may be pressed into virtually any arbitrary shape and may have a gradually changing (or substantially constant) density profile throughout the AVM anode. Such AVM anodes may also be perforated or shaped to receive one or more cathode members. The AVM anodes enhance packaging efficiency for compact high energy density capacitors.

5. 发明专利

CA2412860A1 IMPLANTABLE MEDICAL DEVICE HAVING FLAT ELECTROLYTIC CAPACITOR WITH DIFFERING SIZED ANODE AND CATHODE LAYERS 未知
公开(公告)号：CA2412860A1
公开(公告)日：2002-01-10
申请号：CA2412860
申请日：2001-06-27
申请人： MEDTRONIC INC
发明人： RORVICK ANTHONY W , PIGNATO PAUL A , JACOBS ANDREW M , BREYEN MARK D
IPC分类号： A61N1/39 , A61N1/375 , A61N1/372 , H01G9/00
摘要： Flat electrolytic capacitors, particularly, for use in implantable medical devices (IMDs), and the methods of fabrication of same are disclosed. The capacitors are formed with an electrode stack assembly comprising a pluralit y of stacked capacitor layers each comprising an anode sub-assembly of at leas t one anode layer, a cathode layer and separator layers wherein the anode and cathode layers have differing dimensions that avoid electrical short circuit s between peripheral edges of adjacent anode and cathode layers but maximize anode electrode surface area. The electrolytic capacitor is formed of a capacitor case defining an interior case chamber and case chamber periphery, an electrode stack assembly of a plurality of stacked capacitor layers havin g anode and cathode tabs disposed in the interior case chamber, an electrical connector assembly for providing electrical connection with the anode and cathode tabs through the case, a cover, and electrolyte filling the remainin g space within the interior case chamber. The plurality of capacitor layers an d further separator layers are stacked into the electrode stack assembly and disposed within the interior case chamber such that the adjacent anode and cathode layers are electrically isolated form one another. The anode layer peripheral edges of the anode sub-assemblies of the stacked capacitor layers extend closer to the case side wall than the cathode peripheral edges of the cathode layers of the stack of capacitor layers throughout a major portion o f the case chamber periphery. The separator layer peripheral edges extend to t he case periphery and space the anode layer peripheral edges therefrom. Any burrs, debris or distortions along or of any of the anode layer peripheral edges causing the anode layer edges to effectively extend in the electrode stack height direction causes the anode layer peripheral edges having such tendency to contact an adjacent anode layer. In this way, anode layer surfac e area is maximized, and short circuiting of the anode layers with the cathode layers is avoided. A case liner can also be disposed around the electrode stack assembly periphery.

6. 发明专利

DE19832969A1 Battery for implantable medical devices e.g. heart defibrillators 未知
公开(公告)号：DE19832969A1
公开(公告)日：1999-02-04
申请号：DE19832969
申请日：1998-07-22
申请人： MEDTRONIC INC
发明人： HAAS DAVID P , HOWARD WILLIAM G , CRESPI ANN M , RORVICK ANTHONY W , ROCKOW STEVEN , RIES ANDREW J
IPC分类号： A61N1/378 , A61N1/39 , H01M2/02 , H01M2/04 , H01M2/10 , H01M6/10 , H01M6/16 , H01M10/04 , H01M10/05 , A61N1/34
摘要： The implantable defibrillator has a housing with one or more curved edges, a capacitor and a battery, where the latter comprises an electrode components (30), electrolyte, housing (50) and hermetically sealing outer battery housing (20), which encloses the other battery components. The housing includes a cover a bottom and at least one curved side.

7. 发明专利

CA2499842A1 APPARATUS AND METHOD FOR OPTIMIZING CAPACITOR CHARGE IN A MEDICAL DEVICE 未知
公开(公告)号：CA2499842A1
公开(公告)日：2004-04-15
申请号：CA2499842
申请日：2003-09-26
申请人： MEDTRONIC INC
发明人： NORTON JOHN D , RORVICK ANTHONY W
IPC分类号： A61N1/39 , A61N1/00 , A61N1/36 , A61N1/365
摘要： A medical device for electrical termination of an arrhythmic condition of a patient's heart in embodiments of the invention may include one or more of t he following features: (a) at least one battery; (b) means for detection of an arrhythmic condition of a patient's heart; (c) at least one high voltage capacitor; (d) converter means for providing charging current from said battery to said capacitor; (e) means for maintenance of a charge on said capacitor between arrhythmia therapies; (f) controller means responsive to detection of an arrhythmic condition of said patient's heart and for providi ng a discharge control signal; and (g) discharge circuit means for delivering voltage stored on said capacitor to said patient's heart in response to said discharge control signal.

8. 发明专利

CA2412851A1 IMPLANTABLE MEDICAL DEVICE HAVING FLAT ELECTROLYTIC CAPACITOR WITH TAILORED ANODE LAYERS 未知
公开(公告)号：CA2412851A1
公开(公告)日：2002-01-10
申请号：CA2412851
申请日：2001-06-19
申请人： MEDTRONIC INC
发明人： MILTICH THOMAS P , PIGNATO PAUL A , BREYEN MARK D , RORVICK ANTHONY W
IPC分类号： A61N1/05 , A61N1/375 , A61N1/39 , A61N1/40 , H01G9/00 , A61N1/372
摘要： Flat electrolytic capacitors and method of making and using same in implantable medical devices (IMDs) are disclosed, the capacitors having a plurality of capacitor layers of an electrode stack formed of tailored numbe rs of anode and cathode layers to fill the available stack height space in the capacitor case. The capacitor is formed with a capacitor or electrode stack assembly having a stack assembly thickness or height HN that is tailored to fit a case wall height HCW of the capacitor case with minimal wasted space a nd allowance for any stack height tolerance to. The electrode stack assembly comprises a plurality of N stacked capacitor layers each having a specified capacitor layer thickness or height. At least N1 capacitor layers have a fir st capacitor layer thickness T1 and N2 capacitor layers have a second capacitor layer thickness T2 where N = (N1 + N2), and HN = N1*T1+T1*N2. The N capacito r layers are preferably formed of a cathode layer, and anode sub-assembly and at least one separator layer comprising one or more separator sheet on either side of the cathode layer and the anode-layer sub-assembly. The anode sub- assembly of the N1 capacitor layers comprising x anode layers each having anode layer thickness tx stacked together, each anode layer having an anode layer thickness Tx.The anode sub-assemblies of the N2 capacitor layers comprising y anode layers each ahving anode layer thickness ty stacked together, each anode layer having an anode layer thickness Ty.

9. 发明专利

DE60318482T2 未知
公开(公告)号：DE60318482T2
公开(公告)日：2009-01-02
申请号：DE60318482
申请日：2003-11-21
申请人： MEDTRONIC INC
发明人： HOSSICK-SCHOTT JOACHIM , NORTON JOHN D , RORVICK ANTHONY W , MAY STEVE J
IPC分类号： H01G9/04 , A61N1/39 , H01B13/00 , H01G9/042 , H01G9/048 , H01G9/052 , H01G9/06 , H01G9/08
摘要： The present invention generally relates to improved capacitors; in particular, the present invention provides advanced valve metal (AVM) anodes and methods for fabricating AVM anodes having complex surface and interior features for use in high energy density capacitors. Such anodes find use in high voltage capacitors incorporated into implantable medical devices (IMDs), among other uses. The AVM anodes may be pressed into virtually any arbitrary shape and may have a gradually changing (or substantially constant) density profile throughout the AVM anode. Such AVM anodes may also be perforated or shaped to receive one or more cathode members. The AVM anodes enhance packaging efficiency for compact high energy density capacitors.

10. 发明专利

ES2231515T3 DISPOSITIVO MEDICO IMPLANTE CON CONDENSADOR ELECTROLITICO CON CAPAS DE ANODO EMPAREJADAS. 未知
公开(公告)号：ES2231515T3
公开(公告)日：2005-05-16
申请号：ES01946513
申请日：2001-06-19
申请人： MEDTRONIC INC
发明人： RORVICK ANTHONY W , BREYEN MARK D , PIGNATO PAUL A , MILTICH THOMAS P
IPC分类号： A61N1/05 , A61N1/375 , A61N1/39 , A61N1/40 , H01G9/00 , A61N1/372
摘要： Un condensador electrolítico incluyendo: una caja de condensador sellada que define una cámara interior de caja, teniendo la caja una base que tiene un borde periférico de base, una pared lateral de caja que se extiende entre el borde periférico de base a un borde de abertura de pared lateral que define un borde de abertura de caja; una cubierta adaptada para sellarse contra el borde de abertura de la caja para encerrar una cámara interior de caja, por lo que la cámara interior de caja tiene una periferia de cámara de caja definida por dicha pared lateral de caja y una altura de cámara de caja Hcw; y un conjunto de pila de electrodos situado dentro de la cámara interior de caja incluyendo una pluralidad de N capas de condensador apiladas en correspondencia una sobre otra y entre la base de caja y la cubierta mediante una altura de pila HN seleccionada de manera que sea igual o inferior a la altura de cámara de caja Hcw con una tolerancia predeterminada, donde cada una de las N1 capas de condensador de las N capas de condensador tiene un primer grosor de capa de condensador TCL1 y cada una de las N2 capas de condensador de las N capas de condensador tiene un segundo grosor de capa de condensador TCL2, por lo que la altura de pila HN depende

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