公开(公告)号：US20220415545A1

公开(公告)日：2022-12-29

申请号：US17848545

申请日：2022-06-24

Applicant: Greatbatch Ltd.

Inventor： Brian P. Hohl ,  Dallas J. Rensel ,  Jonathan Calamel ,  Christine A. Frysz

IPC: H01B17/30 ,  H01B19/00 ,  H01B17/58 ,  G06F30/10 ,  B28B1/00 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y40/20 ,  C04B35/626 ,  C04B35/64

Abstract: A ceramic subassembly manufactured by a 3D-printing process is described. The ceramic subassembly comprises a ceramic substrate having a sidewall extending to spaced apart first and second end surfaces. At least one via extends through the substrate from the ceramic substrate first end surface to the ceramic substrate second end surface. In cross-section, the via has a square-shape with rounded corners.

公开(公告)号：US11351387B2

公开(公告)日：2022-06-07

申请号：US16578476

申请日：2019-09-23

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Thomas Marzano ,  Keith W. Seitz ,  Christine A. Frysz ,  Dallas J. Rensel ,  Brian P. Hohl

IPC: A61N1/37 ,  A61N1/375 ,  A61N1/05 ,  B23K35/30 ,  A61N1/08 ,  H01R43/00 ,  H01G4/35 ,  C22C29/12 ,  H01G4/12 ,  H01G2/10 ,  H01G4/005 ,  H02G3/22 ,  H01G4/30 ,  C04B37/02 ,  C04B35/645 ,  B32B18/00 ,  H01G4/40 ,  A61N1/372 ,  B22F7/04 ,  B22F3/04 ,  B22F3/02 ,  B22F3/15 ,  C04B35/00 ,  C22C1/04

Abstract: A method for manufacturing a singulated feedthrough insulator for a hermetic seal of an active implantable medical device (AIMD) is described. The method begins with forming a green-state ceramic bar with a via hole filled with a conductive paste. The green-state ceramic bar is dried to convert the paste to an electrically conductive material filling via hole and then subjected to a pressing step. Following pressing, a green-state insulator is singulated from the green-state ceramic bar. The singulated green-state insulator in next sintered to form an insulator that is sized and shaped for hermetically sealing to close a ferrule opening. The thusly produced feedthrough is suitable installation in an opening in the housing of an active implantable medical device.

公开(公告)号：US11114714B2

公开(公告)日：2021-09-07

申请号：US16431025

申请日：2019-06-04

Applicant: Greatbatch Ltd.

Inventor： Robert S. Rubino ,  Keith W. Seitz ,  Brian P. Hohl

IPC: H01M50/116 ,  H01M4/525 ,  H01M50/10

Abstract: A miniature electrochemical cell having a volume of less than 0.5 cc includes a casing having a header assembly comprising a ceramic plate formed by co-firing a metallic-containing paste in first and second via holes extending through a green-state ceramic. The ceramic plate is joined to a metal ring by a gold-braze to form the header assembly that is secured to an open-ended metal container by a weld to provide the casing. The fill material resulting from sintering the metallic-containing paste provides a first conductive pathway to the anode current collector contacting an anode active material and a second conductive pathway to a cathode current collector contacting a cathode active material. A solid electrolyte activates the anode and cathode while also serving as a separator. Outer surfaces of the first and second conductive pathways are configured for electrical connection to a load.

公开(公告)号：US10957884B1

公开(公告)日：2021-03-23

申请号：US16240850

申请日：2019-01-07

Applicant: Greatbatch Ltd.

Inventor： David Dianetti ,  Gary Freitag ,  Robert S. Rubino ,  Keith W. Seitz ,  Ho-Chul Yun ,  Todd C. Sutay ,  Brian P. Hohl ,  David Wutz

IPC: H01M2/02 ,  H01M2/08 ,  H01M2/30

Abstract: A miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The casing enclosure consists of a lower plate supporting a cylindrically-shaped can having an open upper end closed with a cover. The can is selectively coated with a dielectric material to provide electrical isolation of the to-be-housed active materials from the can sidewall. A glass-to-metal seal electrically isolates the lower plate from the can. An electrode assembly comprising a sandwich of cathode active material/separator/anode active material is housed in the casing. That way, the lower plate contacting the cathode active material is the positive terminal and the closing cover connected to the can and contacted to the anode active material serves as the negative cell terminal. An electrolyte filled into the casing activates the electrode assembly and the fill opening is sealed with a plug. The cell can be of either a primary or a secondary chemistry.

公开(公告)号：US10905888B2

公开(公告)日：2021-02-02

申请号：US16362043

申请日：2019-03-22

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Christine A. Frysz ,  Keith W. Seitz ,  Brian P. Hohl ,  Marc Gregory Martino

IPC: A61N1/375 ,  H01G4/35 ,  H01G4/236 ,  H01G4/008 ,  H01G4/12

Abstract: A filter feedthrough for an AIMD includes ferrule with an insulator hermetically sealing a ferrule opening, both cooperatively separating a body fluid side from a device side. A first conductive pathway is hermetically sealed to and disposed through the insulator. A feedthrough capacitor is disposed on the device side and includes at least one active electrode plate disposed parallel and spaced from at least one ground electrode plate within a capacitor dielectric. A capacitor active metallization is electrically connected to the active electrode plate and is in non-electrically conductive relation with the ground electrode plate. A capacitor ground metallization is electrically connected to the ground electrode plate and is in non-electrically conductive relation with the active electrode plate. An anisotropic conductive layer is disposed on the device side. The anisotropic conductive layer electrically connects the capacitor active metallization to the first conductive pathway.

公开(公告)号：US20200303763A1

公开(公告)日：2020-09-24

申请号：US16812492

申请日：2020-03-09

Applicant: Greatbatch Ltd.

Inventor： Keith W. Seitz ,  Xiaohong Tang ,  Brian P. Hohl ,  Biswa P. Das ,  Holly Noelle Moschiano

IPC: H01M10/052 ,  H01M10/0562 ,  H01M2/02 ,  H01M2/06 ,  H01M4/66 ,  H01M4/131

Abstract: A miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The cell casing is formed by joining two ceramic casing halves together. One or both casing halves are machined from ceramic to provide a recess that is sized and shaped to contain the electrode assembly. The opposite polarity terminals are electrically conductive feedthroughs or pathways, such as of gold, and are formed by brazing gold into tapered via holes machined into one or both ceramic casing halves. The two ceramic casing halves are separated from each other by a metal interlayer, such as of gold, bonded to a thin film metallization layer, such as of titanium, that contacts an edge periphery of each ceramic casing half. A solid electrolyte of LiPON (LixPOyNz) is used to activate the electrode assembly.

公开(公告)号：US20190290921A1

公开(公告)日：2019-09-26

申请号：US16362043

申请日：2019-03-22

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Christine A. Frysz ,  Keith W. Seitz ,  Brian P. Hohl ,  Marc Gregory Martino

IPC: A61N1/375 ,  H01G4/35 ,  H01G4/12 ,  H01G4/008 ,  H01G4/236

Abstract: A filter feedthrough for an AIMD includes ferrule with an insulator hermetically sealing a ferrule opening, both cooperatively separating a body fluid side from a device side. A first conductive pathway is hermetically sealed to and disposed through the insulator. A feedthrough capacitor is disposed on the device side and includes at least one active electrode plate disposed parallel and spaced from at least one ground electrode plate within a capacitor dielectric. A capacitor active metallization is electrically connected to the active electrode plate and is in non-electrically conductive relation with the ground electrode plate. A capacitor ground metallization is electrically connected to the ground electrode plate and is in non-electrically conductive relation with the active electrode plate. An anisotropic conductive layer is disposed on the device side. The anisotropic conductive layer electrically connects the capacitor active metallization to the first conductive pathway.

公开(公告)号：US20180361164A1

公开(公告)日：2018-12-20

申请号：US16101639

申请日：2018-08-13

Applicant: Greatbatch Ltd.

Inventor： Robert A. Stevenson ,  Thomas Marzano ,  Keith W. Seitz ,  Christine A. Frysz ,  Dallas J. Rensel ,  Brian P. Hohl

IPC: A61N1/375 ,  H02G3/22 ,  H01R43/00 ,  A61N1/05 ,  A61N1/08 ,  H01G4/40 ,  H01G4/35 ,  H01G4/30 ,  H01G4/12 ,  H01G4/005 ,  H01G2/10 ,  C22C29/12 ,  B23K35/30 ,  A61N1/372

CPC classification number: A61N1/3754 ,  A61N1/05 ,  A61N1/08 ,  A61N1/372 ,  A61N1/375 ,  B22F3/02 ,  B22F3/04 ,  B22F3/15 ,  B22F2007/042 ,  B22F2999/00 ,  B23K35/3013 ,  B32B18/00 ,  C04B35/00 ,  C04B35/645 ,  C04B37/026 ,  C04B2237/122 ,  C04B2237/125 ,  C04B2237/343 ,  C04B2237/403 ,  C04B2237/72 ,  C22C1/0466 ,  C22C29/12 ,  H01G2/103 ,  H01G4/005 ,  H01G4/12 ,  H01G4/30 ,  H01G4/35 ,  H01G4/40 ,  H01R43/00 ,  H02G3/22 ,  Y10T156/1052

Abstract: A method of manufacturing a feedthrough dielectric body for an active implantable medical device includes the steps of forming a ceramic body in a green state, or, stacking discrete layers of ceramic in a green state upon one another and laminating together. The ceramic body has a first side opposite a second side. At least one via hole is formed straight through the ceramic body extending between the first and second sides. At least one via hole is filled with a conductive paste. The ceramic body and the conductive paste are then dried. The ceramic body and the conductive paste are isostatically pressed at above 1000 psi to remove voids and to form a closer interface for sintering. The ceramic body and the conductive paste are sintered together to form the feedthrough dielectric body. The feedthrough dielectric body is hermetically sealed to a ferrule.