Patents by Inventor David B. Chang
David B. Chang 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: 11679272Abstract: A process for safely providing retinal phototherapy includes generating an interferometric signal or pattern by applying a near infrared light beam to a retinal pigment epithelium of a retina of an eye. A level or concentration of melanin within the retinal pigment epithelium of the retina is compared to a normal level or concentration using the detected interferometric signal or pattern. One or more treatment parameters of the retinal phototherapy is adjusted if the level or concentration of melanin in the retinal pigment epithelium of the eye exceeds the normal level or concentration by a predetermined amount.Type: GrantFiled: August 14, 2019Date of Patent: June 20, 2023Assignee: Ojai Retinal Technology, LLCInventors: David B. Chang, Jeffrey K. Luttrull
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Publication number: 20210346714Abstract: A process for heat treating biological tissue includes providing a plurality of energy emitters formed into an array. Treatment energy in the form of ultrasound energy is generated from the plurality of emitters and applied to target tissue. The treatment energy has energy and application parameters selected so as to raise the target tissue temperature sufficiently to create a therapeutic effect while maintaining an average temperature of the target tissue over several minutes at or below a predetermined temperature so as not to destroy or permanently damage the target tissue.Type: ApplicationFiled: June 14, 2021Publication date: November 11, 2021Applicant: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Publication number: 20210346713Abstract: A process for heat treating biological tissue includes providing a plurality of energy emitters formed into an array. Treatment energy in the form of light beams is generated from the plurality of emitters and applied to target tissue. The treatment energy has energy and application parameters selected so as to raise the target tissue temperature sufficiently to create a therapeutic effect while maintaining an average temperature of the target tissue over several minutes at or below a predetermined temperature so as not to destroy or permanently damage the target tissue.Type: ApplicationFiled: June 1, 2021Publication date: November 11, 2021Applicant: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Publication number: 20210346712Abstract: A process for heat treating biological tissue includes providing a plurality of energy emitters formed into an array. Treatment energy in the form of microwave energy is generated from the plurality of emitters and applied to target tissue. The treatment energy has energy and application parameters selected so as to raise the target tissue temperature sufficiently to create a therapeutic effect while maintaining an average temperature of the target tissue over several minutes at or below a predetermined temperature so as not to destroy or permanently damage the target tissue.Type: ApplicationFiled: June 1, 2021Publication date: November 11, 2021Applicant: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Patent number: 11077318Abstract: A process for heat treating biological tissue includes providing a plurality of energy emitters formed into an array. Treatment energy is generated from the plurality of emitters and applied to target tissue. The treatment energy has energy and application parameters selected so as to raise the target tissue temperature sufficiently to create a therapeutic effect while maintaining an average temperature of the target tissue over several minutes at or below a predetermined temperature so as not to destroy or permanently damage the target tissue.Type: GrantFiled: July 19, 2018Date of Patent: August 3, 2021Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Patent number: 11033749Abstract: A process for heat treating biological tissue includes repeatedly applying a pulsed energy to a target tissue over a period of time so as to controllably raise a temperature of the target tissue to create a therapeutic effect to the target tissue without destroying or permanently damaging the target tissue. After the first treatment is concluded the application of the pulsed energy to the target tissue is halted for an interval of time. Within a single treatment session a second treatment is performed on the target tissue after the interval of time by repeatedly reapplying the pulsed energy to the target tissue so as to controllably raise the temperature of the target tissue to therapeutically treat the target tissue without destroying or permanently damaging the target tissue.Type: GrantFiled: August 18, 2020Date of Patent: June 15, 2021Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Patent number: 10952899Abstract: A process for safely providing retinal phototherapy includes generating first and second light beams of a different wavelength. The first and second light beams are applied to a retinal pigment epithelium (RPE) and choroid of an eye. The amount of light reflected from the eye from the first light beam and the second light beam is measured, such as using a reflectometer. A level or concentration of the melanin within the eye is calculated using the measured amount of light reflected from the eye from the first and second light beams. When the content or density of melanin in the RPE exceeds a predetermined amount, one or more treatment parameters of the retinal phototherapy is adjusted.Type: GrantFiled: November 29, 2018Date of Patent: March 23, 2021Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang
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Patent number: 10953241Abstract: A process that provides protective therapy for biological tissues or fluids includes applying a pulsed energy source to a target tissue or a target fluid having a chronic progressive disease or a risk of having a chronic progressive disease to therapeutically or prophylactically treat the target tissue or target fluid. The pulsed energy source has energy parameters selected so as to raise the target tissue or bodily target fluid temperature up to a predetermined temperature for a short period of time to achieve a therapeutic or prophylactic effect, while the average temperature rise of the target tissue or target fluid over a longer period of time is maintained at or below a predetermined level so as not to permanently damage the target tissue or target fluid.Type: GrantFiled: May 1, 2017Date of Patent: March 23, 2021Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, Benjamin W. L. Margolis, David B. Chang
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Patent number: 10894169Abstract: A process that provides protective therapy for biological tissues or fluids includes applying a pulsed energy source to a target tissue or a target fluid having a chronic progressive disease or a risk of having a chronic progressive disease to therapeutically or prophylactically treat the target tissue or target fluid. A pulsed energy source having selected energy parameters may be applied to a brain of an individual who has Alzheimer's or other neurodegenerative disease or is at risk of developing such a neurodegenerative disease so as to prevent or treat the neurodegenerative disease.Type: GrantFiled: August 4, 2020Date of Patent: January 19, 2021Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang
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Patent number: 10874873Abstract: A process for heat treating biological tissue includes repeatedly applying a pulsed energy to a target tissue over a period of time so as to controllably raise a temperature of the target tissue to create a therapeutic effect to the target tissue without destroying or permanently damaging the target tissue. After the first treatment is concluded the application of the pulsed energy to the target tissue is halted for an interval of time. Within a single treatment session a second treatment is performed on the target tissue after the interval of time by repeatedly reapplying the pulsed energy to the target tissue so as to controllably raise the temperature of the target tissue to therapeutically treat the target tissue without destroying or permanently damaging the target tissue.Type: GrantFiled: March 12, 2018Date of Patent: December 29, 2020Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Publication number: 20200398072Abstract: A process for heat treating biological tissue includes repeatedly applying a pulsed energy to a target tissue over a period of time so as to controllably raise a temperature of the target tissue to create a therapeutic effect to the target tissue without destroying or permanently damaging the target tissue. After the first treatment is concluded the application of the pulsed energy to the target tissue is halted for an interval of time. Within a single treatment session a second treatment is performed on the target tissue after the interval of time by repeatedly reapplying the pulsed energy to the target tissue so as to controllably raise the temperature of the target tissue to therapeutically treat the target tissue without destroying or permanently damaging the target tissue.Type: ApplicationFiled: August 18, 2020Publication date: December 24, 2020Applicant: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Publication number: 20200360709Abstract: A process that provides protective therapy for biological tissues or fluids includes applying a pulsed energy source to a target tissue or a target fluid having a chronic progressive disease or a risk of having a chronic progressive disease to therapeutically or prophylactically treat the target tissue or target fluid. A pulsed energy source having selected energy parameters may be applied to a brain of an individual who has Alzheimer's or other neurodegenerative disease or is at risk of developing such a neurodegenerative disease so as to prevent or treat the neurodegenerative disease.Type: ApplicationFiled: August 4, 2020Publication date: November 19, 2020Applicant: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang
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Patent number: 10709607Abstract: A process for preventing or treating myopia includes applying a pulsed energy, such as a pulsed laser beam, to tissue of an eye having myopia or a risk of having myopia. The source of pulsed energy has energy parameters including wavelength or frequency, duty cycle and pulse train duration, which are selected so as to raise an eye tissue temperature up to eleven degrees Celsius to achieve therapeutic or prophylactic effect, such as stimulating heat shock protein activation in the eye tissue. The average temperature rise of the eye tissue over several minutes is maintained at or below a predetermined level so as not to permanently damage the eye tissue.Type: GrantFiled: May 21, 2019Date of Patent: July 14, 2020Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Patent number: 10709608Abstract: A process for preventing or treating myopia includes applying a pulsed energy, such as a pulsed light beam, to tissue of an eye having myopia or a risk of having myopia. The source of pulsed energy has energy parameters including wavelength or frequency, duty cycle and pulse train duration, which are selected so as to raise an eye tissue temperature to achieve therapeutic or prophylactic effect, such as stimulating heat shock protein activation in the eye tissue. The average temperature rise of the eye tissue over several minutes is maintained at or below a predetermined level so as not to permanently damage the eye tissue.Type: GrantFiled: June 13, 2019Date of Patent: July 14, 2020Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Patent number: 10596389Abstract: A process for heat treating biological tissue includes generating treatment radiation having a predetermined wavelength and average power. The treatment radiation is applied to biological tissue, such as retinal tissue, such that at least one treatment spot is formed on the biological tissue and the biological tissue is heat stimulated sufficiently to create a therapeutic effect without destroying the tissue.Type: GrantFiled: July 18, 2018Date of Patent: March 24, 2020Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Patent number: 10531908Abstract: A method for heat treating biological tissues includes providing a pulsed energy source having energy parameters selected so as to raise a target temperature to a level to achieve a therapeutic effect, while the average temperature rise of the tissue over a prolonged period of time is maintained at or below a predetermined level so as not to permanently damage the target tissue. Application of the pulsed energy source to the target tissue induces a heat shock response and stimulates heat shock protein activation in the target tissue so as to therapeutically treat the target tissue.Type: GrantFiled: July 20, 2016Date of Patent: January 14, 2020Assignee: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Publication number: 20190366121Abstract: A process for safely providing retinal phototherapy includes generating an interferometric signal or pattern by applying a near infrared light beam to a retinal pigment epithelium of a retina of an eye. A level or concentration of melanin within the retinal pigment epithelium of the retina is compared to a normal level or concentration using the detected interferometric signal or pattern. One or more treatment parameters of the retinal phototherapy is adjusted if the level or concentration of melanin in the retinal pigment epithelium of the eye exceeds the normal level or concentration by a predetermined amount.Type: ApplicationFiled: August 14, 2019Publication date: December 5, 2019Inventors: David B. Chang, Jeffrey K. Luttrull
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Publication number: 20190328577Abstract: A process for preventing or treating myopia includes applying a pulsed energy, such as a pulsed light beam, to tissue of an eye having myopia or a risk of having myopia. The source of pulsed energy has energy parameters including wavelength or frequency, duty cycle and pulse train duration, which are selected so as to raise an eye tissue temperature to achieve therapeutic or prophylactic effect, such as stimulating heat shock protein activation in the eye tissue. The average temperature rise of the eye tissue over several minutes is maintained at or below a predetermined level so as not to permanently damage the eye tissue.Type: ApplicationFiled: June 13, 2019Publication date: October 31, 2019Applicant: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis
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Patent number: 10434330Abstract: A process for safely providing retinal phototherapy includes generating an interferometric signal or pattern by applying a near infrared light beam to a retinal pigment epithelium of a retina of an eye. A level or concentration of melanin within the retinal pigment epithelium of the retina is compared to a normal level or concentration using the detected interferometric signal or pattern. One or more treatment parameters of the retinal phototherapy is adjusted if the level or concentration of melanin in the retinal pigment epithelium of the eye exceeds the normal level or concentration by a predetermined amount.Type: GrantFiled: January 7, 2019Date of Patent: October 8, 2019Assignee: Ojai Retinal Technology, LLCInventors: David B. Chang, Jeffrey K. Luttrull
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Publication number: 20190269552Abstract: A process for preventing or treating myopia includes applying a pulsed energy, such as a pulsed laser beam, to tissue of an eye having myopia or a risk of having myopia. The source of pulsed energy has energy parameters including wavelength or frequency, duty cycle and pulse train duration, which are selected so as to raise an eye tissue temperature up to eleven degrees Celsius to achieve therapeutic or prophylactic effect, such as stimulating heat shock protein activation in the eye tissue. The average temperature rise of the eye tissue over several minutes is maintained at or below a predetermined level so as not to permanently damage the eye tissue.Type: ApplicationFiled: May 21, 2019Publication date: September 5, 2019Applicant: Ojai Retinal Technology, LLCInventors: Jeffrey K. Luttrull, David B. Chang, Benjamin W. L. Margolis