Medical device profile modeled using fluid dynamics

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.

1 - 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.