# US 11,896,830 B2 · Sealed package and method of forming same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,830 B2 - Document ID: US11896830B2 - Status: Granted - Kind: B2 - Application number: 17/164,998 - Filed: 2021-02-02 - Published: 2021-05-27 - Granted: 2024-02-13 - Earliest claimed: 2018-06-28 - Assignees: Medtronic, Inc. - Applicants: Medtronic, Inc. - Inventors: Andrew J. Thom; Rajesh V. Iyer; Gordon O. Munns; Christian S. Nielsen; Andrew J. Ries - Web page: https://patentgrep.com/patent/US11896830B2 ## CPC - A61N 1/37223: {Circuits for electromagnetic coupling} - A61N 1/375: Constructional arrangements, e.g. casings - A61N 1/37518: {Anchoring of the implants, e.g. fixation} - A61N 1/3754: {Feedthroughs} - A61N 1/3758: {Packaging of the components within the casing} - A61N 1/3787: {from an external energy source} - A61N 1/3968: {Constructional arrangements, e.g. casings (A61N1/375 takes precedence)} - H02J 7/42: with electronic devices having internal batteries, e.g. mobile phones - H02J 50/10: using inductive coupling - H04B 5/24: Inductive coupling - H04B 5/79: for data transfer in combination with power transfer - A61N 1/37229: {Shape or location of the implanted or external antenna} - H02J 50/005: {Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices} - H02J 2105/46: Medical devices, medical implants or life supporting devices - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H04B: TRANSMISSION ## Abstract Various embodiments of a hermetically-sealed package and a method of forming such package are disclosed. The package includes a housing that extends along a housing axis between a first end and a second end, where the housing includes first and second opaque portions and a transparent portion disposed between the first and second opaque portions. The first opaque portion is hermetically sealed to a first end of the transparent portion and the second opaque portion is hermetically sealed to a second end of the transparent portion. At least one of the first and second opaque portions is hermetically sealed to the transparent portion by a weld ring. The package further includes a power source disposed within the housing, and an inductive coil disposed at least partially within the transparent portion of the housing and electrically connected to the power source. ## Claims ### Claim 1 A hermetically-sealed package comprising a housing that extends along a housing axis between a first end and a second end, wherein the housing comprises first and second opaque portions and a transparent portion disposed between the first and second opaque portions, wherein the first opaque portion is hermetically sealed to a first end of the transparent portion and the second opaque portion is hermetically sealed to a second end of the transparent portion, wherein at least one of the first and second opaque portions is hermetically sealed to the transparent portion by a weld ring. ### Claim 2 (depends on 1) The package of claim 1, wherein the first opaque portion is hermetically sealed to the first end of the transparent portion by the weld ring and the second opaque portion is hermetically sealed to the second end of the transparent portion by a second weld ring. ### Claim 3 (depends on 2) The package of claim 2, wherein at least one of the weld ring or the second weld ring is diffusion bonded to the transparent portion of the housing. ### Claim 4 (depends on 3) The package of claim 3, wherein at least one of the weld ring or the second weld ring is laser diffusion bonded to the transparent portion of the housing. ### Claim 5 (depends on 2) The package of claim 2, wherein at least one of the weld ring or the second weld ring is compression bonded to the transparent portion of the housing. ### Claim 6 (depends on 1) The package of claim 1, wherein the transparent portion of the housing is substantially transmissive to electromagnetic radiation having a frequency in a range of 10 kHz to 20 MHz. ### Claim 7 (depends on 1) The package of claim 1, further comprising an inductive coil disposed at least partially within the transparent portion of the housing. ### Claim 8 (depends on 1) The package of claim 1, wherein the first opaque portion of the housing comprises an external contact adapted to provide an electrical signal to tissue of a patient. ### Claim 9 (depends on 1) The package of claim 1, further comprising an external contact hermetically sealed to the second opaque portion of the housing. ### Claim 10 (depends on 1) The package of claim 1, wherein the housing comprises an elliptical cross-section in a plane orthogonal to the housing axis. ### Claim 11 (depends on 1) The package of claim 1, further comprising a tine connected to the first opaque portion of the housing adjacent to the first end of the housing. ### Claim 12 (depends on 1) The package of claim 1, wherein the transparent portion of the housing comprises a ceramic material. ### Claim 13 (depends on 1) The package of claim 1, wherein at least one of the first and second opaque portions of the housing comprises a ceramic material. ### Claim 14 A housing assembly, comprising: a housing comprising an outer surface and an inner surface and extending along a housing axis between a first end and a second end; and a weld ring compression bonded to the outer surface of the housing at the first end and a second weld ring compression bonded to the outer surface of the housing at the second end, wherein the weld ring and the second weld ring are hermetically-sealed to the outer surface of the housing. ### Claim 15 (depends on 14) The assembly of claim 14, further comprising a diffusion layer disposed between the weld ring and the outer surface of the housing that is formed when the weld ring is compression bonded to the outer surface of the housing. ### Claim 16 (depends on 14) The assembly of claim 14, wherein the housing comprises a ceramic material. ### Claim 17 (depends on 14) The assembly of claim 14, wherein at least a portion of the housing is substantially transmissive to electromagnetic radiation having a frequency in a range of 10 kHz to 20 MHz. ### Claim 18 (depends on 14) The assembly of claim 14, wherein the housing further comprises a flange disposed adjacent to the first end of the housing, wherein the weld ring is disposed over the flange. ### Claim 19 (depends on 18) The assembly of claim 18, wherein the flange comprises a tapered portion, wherein the weld ring comprises a flange that comprises a tapered portion, wherein the tapered portion of the flange of the housing is adapted to receive the tapered portion of the flange of the weld ring. ### Claim 20 (depends on 18) The assembly of claim 18, wherein the housing further comprises a second flange disposed adjacent to the second end of the housing, wherein the second weld ring is disposed over the second flange.