Eye mounted device for therapeutic agent release
US-12167978-B2 · Dec 17, 2024 · US
Neural stimulation for increased persistence
US9757563B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9757563-B2 |
| Application number | US-201514880830-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 12, 2015 |
| Priority date | Jan 26, 2005 |
| Publication date | Sep 12, 2017 |
| Grant date | Sep 12, 2017 |
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Abstract
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The present invention is a method of improving the persistence of electrical neural stimulation, and specifically a method of improving the persistence of an image supplied to a retina, or visual cortex, through a visual prosthesis. A continuously stimulated retina, or other neural tissue, will desensitize after a time period in the range of 20 to 150 seconds. However, an interruption of the stimulation on the order of a few milliseconds will restore the retinal sensitivity without the user perceiving the interruption, or with the user barely perceiving the interruption.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of neural stimulation comprising: stimulating neural tissue according to input stimuli by activating electrodes individually or in groups according to a predetermined pattern, wherein the pattern results in interrupting each electrode for a period shorter than the threshold of perception but of sufficient length of time to restore neural sensitivity, and not interrupting all electrodes simultaneously. 2. The method according to claim 1 , wherein said predetermined pattern is a pseudorandom pattern. 3. The method according to claim 1 , wherein the predetermined pattern is a raster pattern. 4. The method according to claim 1 , wherein the predetermined pattern jumps around to avoid sequentially activating geographically nearby electrodes. 5. The method according to claim 1 , wherein modifying stimulation on an electrode is reducing stimulation. 6. The method according to claim 1 , wherein modifying stimulation on an electrode is not stimulating on the electrode. 7. The method according to claim 1 , wherein modifying stimulation is for a period shorter than the threshold of perception. 8. The method according to claim 1 , wherein the duration of modifying is programmable.
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- A61N1/36046Primary
of the eye · CPC title
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Frequently asked questions
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- What does patent US9757563B2 cover?
- The present invention is a method of improving the persistence of electrical neural stimulation, and specifically a method of improving the persistence of an image supplied to a retina, or visual cortex, through a visual prosthesis. A continuously stimulated retina, or other neural tissue, will desensitize after a time period in the range of 20 to 150 seconds. However, an interruption of the st…
- Who is the assignee on this patent?
- Second Sight Medical Products Inc
- What technology area does this patent fall under?
- Primary CPC classification A61N1/36046. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Sep 12 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).