MEDICAL DEVICE PROFILE MODELED USING FLUID DYNAMICS

• US 20110134593A1
• Filed: 02/17/2011
• Published: 06/09/2011
• Est. Priority Date: 12/15/2005
• Status: Abandoned Application

• Current Assignee: Benjamin R. Fruland, Keith R Maile, Michael J. Root, Nick A. Youker, Robert S. Harguth
• Original Assignee: Benjamin R. Fruland, Keith R Maile, Michael J. Root, Nick A. Youker, Robert S. Harguth
• Inventors: Harguth, Robert S., Youker, Nick A., Maile, Keith R., Root, Michael J., Fruland, Benjamin R.
• Application Number:
  US13/029,852
• Publication Number:
  US 20110134593A1
• Time in Patent Office: Days
• US Class Current: 361/679.01
• CPC Class Codes: A61N 1/37205 Microstimulators, e.g. implantable through a cannula
• CPC Class Codes: A61N 1/37211 Means for communicating with stimulators
• CPC Class Codes: A61N 1/375 Constructional arrangements, e.g. casings
• CPC Class Codes: A61N 1/37512 Pacemakers
• CPC Class Codes: A61N 1/37516 Intravascular implants
• CPC Class Codes: A61N 1/3756 Casings with electrodes thereon, e.g. leadless stimulators
• CPC Class Codes: Y10T 29/49 Method of mechanical manufacture
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

The present subject matter, in an example, includes an apparatus for positioning in an implant site. In the example, the apparatus includes a hermetically sealed shell having an exterior shaped as a function of hydrodynamic drag at the implant site.

Claims

1-20. -20. (canceled)

21. A method for constructing a device for implantation at an implant site, the method comprising:

modeling a hermetically sealed shell exterior to provide reduced hydrodynamic drag at the implant site; and

shaping a hermetically sealed shell including the hermetically sealed shell exterior.

22. The method of claim 21, comprising modeling the exterior to provide reduced turbulence in conditions measured at the implant site.

23. The method of claim 22, comprising modeling the exterior to provide reduced fluid sheer stress in conditions measured at the implant site.

24. The method of claim 23, comprising modeling the exterior to provide reduced stagnation in conditions measured at the implant site.

25. The method of claim 21, comprising modeling the exterior to provide reduced fluid sheer stress in conditions measured at the implant site.

26. The method of claim 21, comprising modeling the exterior to provide reduced stagnation in conditions measured at the implant site.

27. The method of claim 21, comprising disposing a transducer in the hermetically sealed shell.

28. The method of claim 27, comprising disposing a wireless transmitter in the hermetically sealed shell.

29. The method of claim 27, comprising sensing pressure with the transducer.

30. The method of claim 21, comprising disposing a power source in the hermetically sealed shell.

31. The method of claim 30, comprising stacking into a stack a plurality of substantially planar battery electrode layers in a power source housing of the power source such that a profile of the stack substantially conforms to an interior surface of the hermetically sealed shell.

32. The method of claim 31, wherein the power source is a battery.

33. The method of claim 32, wherein the battery is a primary battery.

34. An apparatus, comprising:

means for housing electronics in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site;

electronics disposed in the means for housing electronics in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site;

means for housing a power source in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site, the means for housing a power source in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site being hermetically sealed to the means for housing electronics in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site with a first seal, with the electronics disposed outside the means for housing a power source in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site; and

a power source disposed in the means for housing a power source in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site, the power source being sealed in the means for housing a power source in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site,

wherein an exterior of the apparatus includes an exterior of the means for housing electronics in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site and an exterior of the means for housing a power source in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site.

35. The apparatus of claim 34, wherein the means for housing a power source define an implantable power source shell exterior and an implantable power source shell interior that approximately conforms to the power source shell exterior.

36. The apparatus of claim 35, wherein the power source defines a contoured power source exterior that approximately conforms to the implantable power source shell interior.

37. The apparatus of claim 34, wherein the power source is a capacitor.

38. The apparatus of claim 34, wherein the electronics include a pressure transducer.

39. The apparatus of claim 34, wherein the power source includes a battery.

40. The apparatus of claim 34, wherein the apparatus defines a passage extending through the apparatus.

41. The apparatus of claim 40, wherein the passage extends through the means for housing electronics in a housing that resists fluid flow at a selected hydrodynamic drag modeled at an implant site.