Patents by Inventor Mark Humayan
Mark Humayan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9993367Abstract: The invention is a retinal implant device to stimulate a retina of an eye thereby producing a specific effect in the eye, such as a vision or drug treatment of a chronic condition. The retinal device is made of a retinal implant that is positioned subretinally and that contains a multitude of stimulation sites that are in contact with the retina. A connection carries a stimulating electrical signal or a drug. The connection passes transretinally through the retina and into a vitreous cavity of the eye, thereby minimizing damage to a nutrient-rich choroid. A lead is attached to a source of drugs or electrical energy, which is located outside the eye. The lead passes through a sclera at a point near a front of the eye to avoid damage to the retina.Type: GrantFiled: July 31, 2006Date of Patent: June 12, 2018Assignee: Second Sight Medical Products, Inc.Inventors: Robert Greenberg, Mark Humayan
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Patent number: 9757563Abstract: 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.Type: GrantFiled: October 12, 2015Date of Patent: September 12, 2017Assignee: Second Sight Medical Products, Inc.Inventors: Arup Roy, Robert Greenberg, Mark Humayan, Kelly McClure
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Patent number: 9254385Abstract: The present invention is an improved method of stimulating visual neurons to create artificial vision. It has been found that varying current of visual stimulation can create varying percept brightness, varying percept size, and varying percept shape. By determining the attributes of predetermined current levels, and using those attributes to program a video processor, more accurate video preproduction can be obtained. The present invention also includes an electrode array having alternating large and small electrodes in rows at a 45 degree angle to horizontal in the visual field.Type: GrantFiled: May 14, 2009Date of Patent: February 9, 2016Assignee: Second Sight Medical Products, Inc.Inventors: Robert Greenberg, Mark Humayan, Devyani Nanduri, Matthew McMahon, James Weiland
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Publication number: 20160030745Abstract: 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.Type: ApplicationFiled: October 12, 2015Publication date: February 4, 2016Inventors: Arup Roy, Robert Greenberg, Mark Humayan, Kelly McClure
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Patent number: 9089690Abstract: The present invention is an implantable electrode array having electrodes with variable pitch and variable size. Electrode arrays of the prior art provide electrodes with a common spacing and size. However, this is not how the human body is arranged. As an example, the retina has closely spaced retinal receptors near the fovea. Those receptors are spaced farther apart, farther away from the fovea. Further, the amount of electrical current required to stimulate the perception of light increases with distance from the fovea. Hence, larger electrodes are required to transfer the necessary current farther away from the fovea.Type: GrantFiled: July 11, 2006Date of Patent: July 28, 2015Assignee: Second Sight Medical Products, Inc.Inventors: Robert Greenberg, Richard Williamson, Mark Humayan
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Patent number: 8538540Abstract: A retinal prosthesis with an inductive coil mounted to the side of the eye by using a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: GrantFiled: September 7, 2011Date of Patent: September 17, 2013Assignee: Second Sight Medical Products, Inc.Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Publication number: 20110319964Abstract: The invention is a retinal prosthesis with an inductive coil mounted to the side of the eye by means of a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: ApplicationFiled: September 7, 2011Publication date: December 29, 2011Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Patent number: 8036751Abstract: The invention is a retinal prosthesis with an inductive coil mounted to the side of the eye by means of a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: GrantFiled: August 2, 2006Date of Patent: October 11, 2011Assignee: Second Sight Medical Producers, Inc.Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Patent number: 7908010Abstract: The invention is a retinal prosthesis with an inductive coil mounted to the side of the eye by means of a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: GrantFiled: October 16, 2007Date of Patent: March 15, 2011Assignee: Second Sight Medical Products, Inc.Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Patent number: 7904164Abstract: The invention is a retinal prosthesis with an inductive coil mounted to the side of the eye by means of a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: GrantFiled: October 23, 2007Date of Patent: March 8, 2011Assignee: Second Sight Medical Products, Inc.Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Publication number: 20090326623Abstract: The present invention is an implantable electrode array having electrodes with variable pitch and variable size. Electrode arrays of the prior art provide electrodes with a common spacing and size. However, this is not how the human body is arranged. As an example, the retina has closely spaced retinal receptors near the fovea. Those receptors are spaced farther apart, farther away from the fovea. Further, the amount of electrical current required to stimulate the perception of light increases with distance from the fovea. Hence, larger electrodes are required to transfer the necessary current farther away from the fovea.Type: ApplicationFiled: July 11, 2006Publication date: December 31, 2009Inventors: Robert Greenberg, Richard Williamson, Mark Humayan
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Patent number: 7483750Abstract: A retinal implant device to stimulate a retina of an eye thereby producing a specific effect in an eye, such as vision or drug treatment of a chronic condition is described. The retinal device is made of a retinal implant that is positioned subretinally and that contains a multitude of stimulation sites that are in contact with the retina. A connection carries the stimulating electrical signal or drug. The connection passes transretinally through the retina and into the vitreous cavity of the eye, thereby minimizing damage to the nutrient-rich choroid. The lead is attached to a source of drugs or electrical energy, which is located outside the eye. The lead passes through the sclera at a point near the front of the eye to avoid damage to the retina.Type: GrantFiled: March 21, 2003Date of Patent: January 27, 2009Assignee: Second Sight Medical Products, Inc.Inventors: Robert Greenberg, Mark Humayan
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Publication number: 20080039936Abstract: The invention is a retinal prosthesis with an inductive coil mounted to the side of the eye by means of a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: ApplicationFiled: October 16, 2007Publication date: February 14, 2008Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Publication number: 20080039938Abstract: The invention is a retinal prosthesis with an inductive coil mounted to the side of the eye by means of a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: ApplicationFiled: October 23, 2007Publication date: February 14, 2008Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Patent number: 7149586Abstract: The present invention is an implantable electrode array having electrodes with variable pitch and variable size. Electrode arrays of the prior art provide electrodes with a common spacing and size. However, this is not how the human body is arranged. As an example, the retina has closely spaced retinal receptors near the fovea. Those receptors are spaced farther apart, farther away from the fovea. Further, the amount of electrical current required to stimulate the perception of light increases with distance from the fovea. Hence, larger electrodes are required to transfer the necessary current farther away from the fovea.Type: GrantFiled: March 28, 2002Date of Patent: December 12, 2006Assignee: Second Sight Medical Products, Inc.Inventors: Robert Greenberg, Richard Williamson, Mark Humayan
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Publication number: 20060271189Abstract: The invention is a retinal prosthesis with an inductive coil mounted to the side of the eye by means of a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: ApplicationFiled: August 2, 2006Publication date: November 30, 2006Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Publication number: 20060270968Abstract: The invention is a retinal implant device to stimulate a retina of an eye thereby producing a specific effect in an eye, such as vision or drug treatment of a chronic condition. The retinal device is made of a retinal implant that is positioned subretinally and that contains a multitude of stimulation sites that are in contact with the retina. A connection carries the stimulating electrical signal or drug. The connection passes transretinally through the retina and into the vitreous cavity of the eye, thereby minimizing damage to the nutrient-rich choroid. The lead is attached to a source of drugs or electrical energy, which is located outside the eye. The lead passes through the sclera at a point near the front of the eye to avoid damage to the retina.Type: ApplicationFiled: July 31, 2006Publication date: November 30, 2006Inventors: Robert Greenberg, Mark Humayan
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Publication number: 20060167528Abstract: 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.Type: ApplicationFiled: January 26, 2005Publication date: July 27, 2006Inventors: Arup Roy, Robert Greenberg, Mark Humayan
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Publication number: 20050222624Abstract: The invention is a retinal prosthesis with an inductive coil mounted to the side of the eye by means of a strap around the eye. This allows for close coupling to an external coil and movement of the entire implanted portion with movement of the eye ball.Type: ApplicationFiled: April 6, 2004Publication date: October 6, 2005Inventors: Robert Greenberg, Mark Humayan, James Little, Kevin Wilkin, Da-Yu Chang, Rajat Agrawal
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Publication number: 20040186533Abstract: The invention is a retinal implant device to stimulate a retina of an eye thereby producing a specific effect in an eye, such as vision or drug treatment of a chronic condition. The retinal device is made of a retinal implant that is positioned subretinally and that contains a multitude of stimulation sites that are in contact with the retina. A connection carries the stimulating electrical signal or drug. The connection passes transretinally through the retina and into the vitreous cavity of the eye, thereby minimizing damage to the nutrient-rich choroid. The lead is attached to a source of drugs or electrical energy, which is located outside the eye. The lead passes through the sclera at a point near the front of the eye to avoid damage to the retina.Type: ApplicationFiled: March 21, 2003Publication date: September 23, 2004Inventors: Robert Greenberg, Mark Humayan