AC LOGIC POWERED STIMULATOR IC FOR NEURAL PROSTHESIS

• US 20110184497A1
• Filed: 07/14/2009
• Published: 07/28/2011
• Est. Priority Date: 07/14/2008
• Status: Abandoned Application

• Current Assignee: SNU R&DB Foundation (Seoul National University), M.I. Tech Co., Ltd. (Synergy Innovation Co., Ltd.)
• Original Assignee: Nuro Bio-System Corp., SNU R&DB Foundation (Seoul National University)
• Inventors: Heetderks, William J., Kim, Sung June, An, Soon Kwan, Jeon, Tae Ho, Lee, Choong Jae
• Application Number:
  US13/003,800
• Publication Number:
  US 20110184497A1
• Time in Patent Office: Days
• US Class Current: 607/72
• CPC Class Codes: A61F 2/0077 Special surfaces of prostheses, e.g. for improving ingrowth A61F2/30767 takes precedence
• CPC Class Codes: A61N 1/3605 Implantable neurostimulators for stimulating central or peripheral nerve system
• CPC Class Codes: A61N 1/375 Constructional arrangements, e.g. casings
• CPC Class Codes: A61N 1/3787 from an external energy source

Abstract

Disclosed is a neural stimulator for neural prosthesis: including a power receiver which receives power from outside and supplies the received power to a circuitry including an electrical signal generator; the electrical signal generator which generates a neural stimulating electrical signal; and a casing which protects the power receiver and the electrical signal generator from bodily fluid, wherein the power supplied by the power receiver to the circuitry including the electrical signal generator is AC logic power. In accordance with this disclosure, a neural stimulator with reduced production cost, simplified production process and reduced size, as compared with those of the related art, while being safe, may be provided.

Claims

1. A neural stimulator for neural prosthesis comprising:

a power receiver which receives power from outside and supplies the received power to a circuitry including an electrical signal generator;

the electrical signal generator which generates a neural stimulating electrical signal; and

a casing which protects the power receiver and the electrical signal generator from bodily fluid,

wherein the power supplied by the power receiver to the circuitry including the electrical signal generator is AC logic power.

2. The neural stimulator for neural prosthesis according to claim 1, wherein the casing is a hermetic packaging using titanium or ceramics.

3. The neural stimulator for neural prosthesis according to claim 1, wherein the casing coats with a circuitry protecting material the outside of the power receiver and the electrical signal generator.

4. The neural stimulator for neural prosthesis according to claim 1, wherein the power receiver receives power from outside via wireless communication or photoinduced energy transfer.

5. The neural stimulator for neural prosthesis according to claim 3, wherein the circuitry protecting material comprises an insulating material.

6. The neural stimulator for neural prosthesis according to claim 5, wherein the circuitry protecting material comprises silicone elastomer or polyurethane.

7. A neural stimulator for neural prosthesis comprising:

a power receiver which receives power from outside and supplies the received power to a circuitry including a power converter;

an electrical signal generator which generates a neural stimulating electrical signal;

a power converter which converts the power received from the power receiver into stable AC logic power and supplies it to the electrical signal generator; and

a casing which protects the power receiver, the electrical signal generator and the power converter from bodily fluid,

wherein the power supplied by the power converter to a circuitry including the electrical signal generator is AC logic power.

8. The neural stimulator for neural prosthesis according to claim 7, wherein the casing is a hermetic packaging using titanium or ceramics.

9. The neural stimulator for neural prosthesis according to claim 7, wherein the casing coats with a circuitry protecting material the outside of the power receiver, the electrical signal generator and the power converter.

10. The neural stimulator for neural prosthesis according to claim 7, wherein the AC logic power is any one of a sine wave, a pulse wave and a triangular wave.

11. The neural stimulator for neural prosthesis according to claim 7, wherein the power receiver receives power from outside via wireless communication or photoinduced energy transfer.

12. The neural stimulator for neural prosthesis according to claim 9, wherein the circuitry protecting material comprises an insulating material.

13. The neural stimulator for neural prosthesis according to claim 12, wherein the circuitry protecting material comprises silicone elastomer or polyurethane.

14. The neural stimulator for neural prosthesis according to claim 7, wherein the power receiver receives power from a battery which supplies DC power.