Implantable medical devices (IMD) configured for implantation within a recess formed in a cranium of a patient, as well as associated methods, are described. In some embodiments, the IMD includes a top external surface and another adjacent external surface, e.g., a side surface, which are oriented w
Implantable medical devices (IMD) configured for implantation within a recess formed in a cranium of a patient, as well as associated methods, are described. In some embodiments, the IMD includes a top external surface and another adjacent external surface, e.g., a side surface, which are oriented with respect to each other to define an acute angle. A connection module for an electrical lead or catheter may be included on the top external surface. Embodiments of the invention may facilitate implantation of an IMD within a recess formed in the cranium of a patient at a location remote to an incision made in the scalp of the patient.
대표청구항▼
1. An assembly of an implantable medical device configured for implantation within a recess formed in a cranium of the patient, the assembly comprising: a top external surface located distally relative to a brain of the patient when the assembly is implanted within the recess;a side external surface
1. An assembly of an implantable medical device configured for implantation within a recess formed in a cranium of the patient, the assembly comprising: a top external surface located distally relative to a brain of the patient when the assembly is implanted within the recess;a side external surface adjacent to the top external surface and located proximate to the brain relative to the top external surface when the assembly is implanted within the recess,wherein the side external surface is configured to be adjacent to the cranium of the patient within the recess and not contact an external surface of the cranium, when the assembly is implanted within the recess,wherein the side external surface and the top external surface are oriented to define an acute angle at a corner of the assembly between the top external surface and the side external surface;a bottom external surface that is adjacent to the side external surface and non-adjacent to the top external surface, wherein the side external surface and the bottom external surface are oriented to define an obtuse angle;a housing that forms a substantially sealed enclosure;circuitry within the substantially sealed enclosure, wherein the circuity is configured to at least one of control delivery of therapy to or monitor a patient via a lead;a feedthrough extending through the housing and configured to electrically connect to the lead outside of the housing; anda flexible tape interconnect within the housing and connected to the feedthrough, the flexible tape interconnect configured to electrically connect the circuitry within the housing to the lead via the feedthrough. 2. The assembly of claim 1, wherein the housing includes at least part of the top external surface. 3. The assembly of claim 1, further comprising the lead, wherein the lead is electrically connected to the circuitry within the housing via the feedthrough. 4. The assembly of claim 1, further comprising a member that at least partially encapsulates the housing, wherein the member comprises at least part of at least one of the top external surface and the side external surface. 5. The assembly of claim 1, further comprising: a processor within the substantially sealed enclosure that controls the circuitry to deliver therapy to the patient. 6. The assembly of claim 1, further comprising a processor configured to at least one of control delivery of therapy to or monitor a patient via the lead. 7. The assembly of claim 1 further comprising a lead connection module located on the top external surface, the lead connection module configured to receive the lead. 8. The assembly of claim 7, wherein the lead connection module receives the lead in a direction that is substantially parallel to the top external surface. 9. The assembly of claim 1, wherein the corner of the assembly between the top external surface and the side external surface is adjacent the recess formed in the cranium of the patient when the assembly is implanted within the recess. 10. The assembly of claim 1, wherein the side external surface converges with the top external surface to define an edge,wherein the edge substantially circumscribes the top external surface. 11. The assembly of claim 10, wherein the bottom external surface converges with the side external surface to define a second edge that substantially circumscribes the bottom external surface. 12. The assembly of claim 1, wherein the acute angle is less than approximately 65 degrees. 13. The assembly of claim 1, wherein the side external surface substantially defines a frustum of a cone. 14. The assembly of claim 1, wherein a profile of a cross-section of the assembly that bisects both the top external surface and the bottom external surface and intersects the side external surface defines a convex polygon. 15. An implantable medical device configured for implantation within a recess formed in a cranium of a patient, the implantable medical device comprising: a housing that forms a substantially sealed enclosure, the housing including a top external surface, wherein the top external surface is located distally relative to a brain of the patient when the implantable medical device is implanted within the recess;a lead connection module located on the top external surface, the lead connection module configured to receive at least one lead;circuitry within the substantially sealed enclosure, wherein the circuitry is configured to at least one of deliver stimulation to or monitor electrical activity within the patient via the lead;a feedthrough extending through the housing and configured to electrically connect to the at least one lead outside of the housing; anda flexible tape interconnect within the housing and connected to the feedthrough, the flexible tape interconnect configured to connect the circuitry within the housing to the at least one lead via the feedthrough. 16. The implantable medical device of 15, wherein the connection module is configured to receive the lead in a direction that is substantially parallel to the top external surface. 17. The implantable medical device of claim 15, wherein the housing includes a second external surface located adjacent to the top external surface and proximate to the cranium of the patent relative to the top external surface when the implantable medical device is implanted within the patient, andwherein the second external surface and the top external surface are oriented to define an acute angle. 18. The implantable medical device of claim 15, wherein the connection module is electrically connected to the circuitry within the housing via the flexible tape interconnect and the feedthroughs. 19. The implantable medical device of claim 15, further comprising: a side external surface adjacent to the top external surface and located proximate to the brain relative to the top external surface when the implantable medical device is implanted within the recess,wherein the side external surface is configured to be adjacent to the cranium of the patient within the recess and not contact an external surface of the cranium, when the implantable medical device is implanted within the recess,wherein the side external surface and the top external surface are oriented to define an acute angle at a corner of the implantable medical device between the top external surface and the side external surface; anda bottom external surface that is adjacent to the side external surface and non-adjacent to the top external surface, wherein the side external surface and the bottom external surface are oriented to define an obtuse angle.
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