Method and apparatus for a small power source for an implantable device

A battery comprising a stack of at least one substantially planar anode and at least one substantially planar cathode, wherein the stack defines a contoured exterior, and a battery housing enclosing the stack, the battery housing defining a battery housing exterior, wherein the contoured exterior of the stack is shaped to conform to a contoured interior of the battery housing that approximately conforms to the battery housing exterior, the battery produced by the process of:nmodeling, using endovascular fluid dynamics, an exterior of a biocompatible housing;shaping the battery housing to conform to at least some of the exterior of the biocompatible housing modeled using the endovascular fluid dynamics; andshaping the stack to conform to an interior of the battery housing.

A method for construction a biocompatible device, comprising:nshaping an exterior of a housing of the biocompatible device, including modeling the exterior to provide reduced hydrodynamic drag in conditions measured at an implant site;stacking at least one non-thin-film anode that is planar with at least one non-thin-film cathode that is planar into a stack; anddisposing the stack into a battery housing, the battery housing providing a form shaped to fit an interior of the housing of the biocompatible device.

An apparatus, comprising:na non-thin-film battery comprising a stack of at least one substantially planar anode and at least one substantially planar cathode, wherein the stack defines a contoured exterior; anda battery housing enclosing the stack, the battery housing defining a battery housing exterior, wherein the contoured exterior of the stack is shaped to conform to a contoured interior of the battery housing that approximately conforms to the battery housing exterior,wherein the battery housing is shaped to conform to at least some of an exterior of a biocompatible housing modeled using endovascular fluid dynamics,wherein the exterior of the biocompatible housing is modeled to reduce turbulance at an implant site, andwherein the exterior of the biocompatible housing is modeled to reduce stagnation at an implant site.

An apparatus, comprising:na non-thin film battery comprising a stack of at least one substantially planar anode and at least one substantially planar cathode, wherein the stack defines a contoured exterior; anda battery housing enclosing the stack, the battery housing defining a battery housing exterior, wherein the contoured exterior of the stack is shaped to conform to a contoured interior of the battery housing that approximately conforms to the battery housing exterior,wherein the battery housing is shaped to conform to at least some of an exterior of a biocompatible housing modeled using endovascular fluid dynamics, andwherein the battery housing has a volume of less than approximately 0.024 cubic centimeters.

An apparatus, comprising:na non-thin-film battery comprising a stack of at least one substantially planar anode and at least one substantially planar cathode, wherein the stack defines a contoured exterior; anda battery housing enclosing the stack, the battery housing defining a battery housing exterior, wherein the contoured exterior of the stack is shaped to conform to a contoured interior of the battery housing that approximately conforms to the battery housing exterior,wherein the battery housing is shaped to conform to at least some of an exterior of a biocompatible housing modeled using endovascular fluid dynamics, andwherein the exterior of the biocompatible housing is modeled to reduce fluid sheer stress at an implant site.