Preserving localization information from modeling to assembling

1. A method of manufacturing a hearing device wherein a three-dimensional model of an application area for the device at an individual is made and the three dimensional model is further treated by modelling, and then a shell of the hearing device is produced departing from the three dimensional model and at least one unit is assembled to the shell, the method comprising the steps of:

treating the three dimensional model includes providing a three-dimensional orientation system to the three dimensional model for local orientation relative to said three-dimensional orientation system;

said modelling includes adding a model of a unit and/or removing and/or adding a part from or to said model, and preserving information indicative for location of said unit and/or removing and/or adding a part relative to said three-dimensional orientation system;

said producing of said shell includes assigning a marking to said shell identifying said three-dimensional orientation system;

said assembling includes controlling local arrangement of said unit and/or removing and/or adding a part from or to said shell, based on said orientation system as identified at said shell and said information preserved.

2. The method of claim 1 wherein said three-dimensional model of said application area is made by in-situ scanning said application area.

3. The method of claim 1 wherein said three-dimensional model of said application area is made by taking a mold of said application area and scanning said mold.

4. The method of claim 1 , wherein said three-dimensional model is digitally treated by said modelling.

5. The method of claim 1 , wherein said assigning a marking comprises producing the marking at said shell.

6. The method of claim 5 , wherein said marking includes at least one of embossments and of projections at a surface of said shell.

7. The method of claim 3 , applying said three-dimensional orientation system comprising linking the marking to said mold.

8. The system of claim 7 , comprising linking said marking to said mold during taking said mold.

9. The method of claim 2 , applying said three-dimensional orientation system comprising linking the marking to said scan.

10. The method of one of claims 7 to 9 , thereby selecting said marking to identify a horizontal line of sight direction of said individual.

11. The method of claim 1 , applying said three-dimensional orientation system comprising linking a positioning structure for said unit to said model and/or linking a contour to said model.

12. The method of claim 1 , applying said three-dimensional orientation system comprising applying guiding members to said model, for guiding assembling of a unit to said shell.

13. The method of claim 12 , wherein said unit is a faceplate.

14. The method of claim 13 , wherein said guiding members are removable guiding pins projecting from the outer surface of said shell.

15. The method of claim 1 , wherein said hearing device is one of a completely-in-the-canal hearing device, an in-the-ear hearing device, an outside-the-ear hearing device.

16. The method of claim 15 , wherein said hearing device is a hearing aid device.

17. A method of manufacturing a hearing device with a shell and with a unit therein, an output signal of the unit in operation being dependent from spatial position and/or orientation thereof, the method comprising the steps of:

applying the unit in-situ adjacent an application area for the hearing device;

operating the unit and monitoring the output signal of said unit;

varying position and/or orientation of the unit to optimize the output signal as monitored;

holding an optimum position of the unit as found;

generating a model of the application area for the device at said individual and with said unit in optimum position, and

manufacturing the hearing device in dependency of said model as generated.