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Implanted Piezo Generator

IP.com Disclosure Number: IPCOM000235863D
Publication Date: 2014-Mar-27
Document File: 3 page(s) / 183K

Publishing Venue

The IP.com Prior Art Database

Abstract

A system is needed that provides energy and sound transmission through the skin to an implant to eliminate the need for an implanted battery. A piezo generator is a known technology; however, no technologies address implanted generators.

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Title 

Implanted Piezo Generator

Abstract

Disclosed is a design for an implanted piezo generator that provides energy and sound transmission through the skin to an implant.  This eliminates the need for an implanted battery.

Problem Addressed 

A system is needed that provides energy and sound transmission through the skin to an implant to eliminate the need for an implanted battery.

A piezo generator is a known technology; however, no technologies address implanted generators.

Novelty Statement

The novel contribution is a design for an implanted piezo generator.  This approach facilitates the transcutaneous transfer of energy using magnetic mechanical coupling between an external vibrator and internal piezo energy harvester.  This is a power transfer only; the approach does not refer to any data.  The design effectively transmits energy and sound to an implanted unit.

Description (Components, Process)

An external magnet is connected to a vibrating unit.  When the magnet vibrates, the magnetic force passes through the skin.  That force affects a magnet or a magnetic material, which is connected to a piezo generator.  The generator then generates a current/voltage to an actuator.

Figure 1: Implantable Piezo Generator with an implanted actuator

1

Magnet connected to a vibrator unit

2

Magnet or magnetic material connected to a piezo generator

3

Piezo generator (or an electromagnetic generator)

4

Cord from piezo generator to printed circuit board (PCB)

5

PCB with components

6

Cord from PCB to actuator

7

Actuator/transducer

Components 2, 3, 4, 5, and 6 are implanted under the skin. The actuator/transducer (7) is implanted and placed on, in, or near the cochlea. Component 1 is a magnet placed outside the skin and is connected to a vibrator (not shown). When the magnet (1) moves, due to the vibrator, the magnetic force causes component 2 to vibrate in the same frequency. When (2) moves, the Piezo generator (3) generates a current /voltage to the Printed Circuit Board (PCB) (5) through the cord (4). The PCB (5) processes the current/voltage to match the actuato...