Implantable medical device with circular feedthrough area

1 . An implantable medical device comprising:

a sealed flat housing enclosing an electronic circuitry and comprising a central hole;

a recess area formed on a side surface of the housing, wherein the recess area comprises a recess surface;

a plurality of feedthrough areas formed into the recess surface, wherein each feedthrough area of the plurality of feedthrough areas comprises a non-conductive component forming a substantially circular shape, and the recess surface separates each feedthrough area of the plurality of feedthrough areas from one another, and the plurality of feedthrough areas at least partially surrounds the central hole;

a plurality of feedthrough conductors cumulated on each feedthrough area of the plurality of feedthrough areas, each feedthrough conductor of the plurality of feedthrough conductors comprising a proximal end part connected to the electronic circuitry and a distal end part extending from said feedthrough area, and the plurality of feedthrough conductors circumferentially surround a center of a corresponding non-conductive component of its feedthrough area; and

a plurality of wires connected to the plurality of feedthrough conductors, wherein each wire of the plurality of wires extends over the recess surface.

2 . The implantable medical device according to claim 1 , wherein the plurality of feedthrough conductors comprises seven feedthrough conductors for each feedthrough area.

3 . The implantable medical device according to claim 1 , wherein the non-conductive component of each feedthrough area of the plurality of feedthrough areas has a plurality of feedthrough holes, wherein the plurality of feedthrough conductors at least partially extends through said plurality of feedthrough holes.

4 . The implantable medical device according to claim 1 , wherein each non-conductive component comprises a surface area of less than 20 mm 2 .

5 . The implantable medical device according to claim 1 , wherein each non-conductive component comprises an electrically insulating material.

6 . The implantable medical device according to claim 1 , wherein the plurality of feedthrough conductors comprises at least two, in particular three, feedthrough areas.

7 . The implantable medical device according to claim 1 , wherein a total surface area of the non-conductive components of the plurality of feedthrough areas is less than 40 mm 2 .

8 . The implantable medical device according to claim 1 , wherein each feedthrough area of the plurality of feedthrough areas further comprises a feedthrough ring surrounding the non-conductive component and connecting the non-conductive component with the housing of the implantable medical device, and the recess surface separates each feedthrough ring from one another.

9 . The implantable medical device according to claim 8 , wherein the non-conductive component and the feedthrough ring are hermetically sealed therebetween.

10 . The implantable medical device according to claim 8 , further comprising a plurality of connectors configured to provide connections between the plurality of feedthrough conductors and the plurality of wires, wherein each connector of the plurality of connectors comprises a first end section adapted to be connected with a feedthrough conductor of the plurality of feedthrough conductors and a second end section adapted to be connected with a wire of the plurality of wires.

11 . The implantable medical device according to claim 1 , further comprising a tubing that houses the plurality of wires connected to said plurality of feedthrough conductors and that is arranged on the housing.

12 . The implantable medical device according to claim 1 , further comprising a wire guide arranged on said side surface in which a plurality of guide grooves for guiding the wires are formed.

13 . An implantable medical device comprising:

a housing enclosing an electronic circuitry and comprising a central hole;

a recess area formed into the housing and comprising a recess surface;

a plurality of non-conductive components formed into the recess surface, wherein each non-conductive component of the plurality of non-conductive components forms a substantially circular shape, and the recess surface separates each non-conductive component of the plurality of non-conductive components from one another, and the plurality of non-conductive components surrounds a portion of the central hole;

a plurality of feedthrough conductors, wherein each feedthrough conductor of the plurality of feedthrough conductors comprises a proximal end part connected to the electronic circuitry and a distal end part extending out of one of the plurality of non-conductive components, and the plurality of feedthrough conductors are arranged at the plurality of non-conductive components such that, at each non-conductive component of the plurality of non-conductive components, feedthrough conductors circumferentially surround a center of the non-conductive component;

a plurality of wires coupled to the plurality of feedthrough conductors, wherein each wire of the plurality of wires extends over the recess surface; and

a plurality of connectors configured to provide connections between the plurality of feedthrough conductors and the plurality of wires, wherein each connector of the plurality of connectors comprises a first end section adapted to be connected with a feedthrough conductor and a second end section adapted to be connected with a wire, and each connector of the plurality of connectors extends over one of the plurality of non-conductive components.

14 . The implantable medical device according to claim 13 , wherein the plurality of non-conductive components circumferentially surround the portion of the central hole.

15 . The implantable medical device according to claim 13 , comprising a wire guide disposed on the recess surface and having a plurality of guide grooves, wherein each wire of the plurality of wires extends through one of the plurality of guide grooves to extend over the recess surface.

16 . The implantable medical device according to claim 15 , wherein the wire guide has a height such that an upper surface of the wire guide is substantially flush with the housing.

17 . The implantable medical device according to claim 15 , comprising tubing at least partially surrounding the wire guide, wherein the plurality of guide grooves guides the plurality of wires over the recess surface to the tubing.

18 . The implantable medical device according to claim 13 , wherein the plurality of non-conductive components comprises three non-conductive components.

19 . The implantable medical device according to claim 13 , comprising a plurality of feedthrough rings, wherein each feedthrough ring of the plurality of feedthrough rings surrounds a non-conductive component of the plurality of non-conductive components and connects the non-conductive component to the housing, and each connector of the plurality of connectors extends over a feedthrough ring of the plurality of feedthrough rings.

20 . The implantable medical device according to claim 13 , wherein, at each non-conductive component of the plurality of non-conductive components, a single row of feedthrough conductors circumferentially surrounds the center of the non-conductive component.