Patents by Inventor Luke Tsai
Luke Tsai 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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Publication number: 20240032997Abstract: Devices, systems, and methods of the present disclosure can overcome physical constraints associated with catheter introduction to facilitate the use of a catheter with a large distal portion as part of a medical procedure benefitting from such a large distal portion, such as, for example, cardiac ablation. More specifically, devices, systems, and methods of the present disclosure can compress an expandable tip of a catheter from an expanded state to a compressed state along a tapered surface of an insertion sleeve for advancement of the expandable tip into vasculature of a patient. The tapered surface of the insertion sleeve can, for example, apply compressive forces at an angle against the advancing expandable tip. As compared to other approaches to the application of compressive force to an expandable tip, compressing the expandable tip using an angled force can reduce the likelihood of unintended deformation of the expandable tip.Type: ApplicationFiled: September 28, 2023Publication date: February 1, 2024Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai, Ian Matthew Collier
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Patent number: 11793567Abstract: Devices, systems, and methods of the present disclosure can overcome physical constraints associated with catheter introduction to facilitate the use of a catheter with a large distal portion as part of a medical procedure benefitting from such a large distal portion, such as, for example, cardiac ablation. More specifically, devices, systems, and methods of the present disclosure can compress an expandable tip of a catheter from an expanded state to a compressed state along a tapered surface of an insertion sleeve for advancement of the expandable tip into vasculature of a patient. The tapered surface of the insertion sleeve can, for example, apply compressive forces at an angle against the advancing expandable tip. As compared to other approaches to the application of compressive force to an expandable tip, compressing the expandable tip using an angled force can reduce the likelihood of unintended deformation of the expandable tip.Type: GrantFiled: September 2, 2022Date of Patent: October 24, 2023Assignee: AFFERA, INC.Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai, Ian Matthew Collier
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Patent number: 11759255Abstract: Ablation systems and methods of the present disclosure control lesion depth and width such that, for example, wide and shallow lesions can be formed in target tissue in an anatomic structure of a patient during a medical procedure. Such wide and shallow lesions can be useful for treating, for example, thin tissue such as atrial tissue in atria of the heart of the patient.Type: GrantFiled: February 5, 2021Date of Patent: September 19, 2023Assignee: Affera, Inc.Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Publication number: 20230128702Abstract: Devices, systems, and methods of the present disclosure can overcome physical constraints associated with catheter introduction to facilitate the use of a catheter with a large distal portion as part of a medical procedure benefitting from such a large distal portion, such as, for example, cardiac ablation. More specifically, devices, systems, and methods of the present disclosure can compress an expandable tip of a catheter from an expanded state to a compressed state along a tapered surface of an insertion sleeve for advancement of the expandable tip into vasculature of a patient. The tapered surface of the insertion sleeve can, for example, apply compressive forces at an angle against the advancing expandable tip. As compared to other approaches to the application of compressive force to an expandable tip, compressing the expandable tip using an angled force can reduce the likelihood of unintended deformation of the expandable tip.Type: ApplicationFiled: September 2, 2022Publication date: April 27, 2023Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai, Ian Matthew Collier
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Patent number: 11471216Abstract: Devices, systems, and methods of the present disclosure can overcome physical constraints associated with catheter introduction to facilitate the use of a catheter with a large distal portion as part of a medical procedure benefiting from such a large distal portion, such as, for example, cardiac ablation. More specifically, devices, systems, and methods of the present disclosure can compress an expandable tip of a catheter from an expanded state to a compressed state along a tapered surface of an insertion sleeve for advancement of the expandable tip into vasculature of a patient. The tapered surface of the insertion sleeve can, for example, apply compressive forces at an angle against the advancing expandable tip. As compared to other approaches to the application of compressive force to an expandable tip, compressing the expandable tip using an angled force can reduce the likelihood of unintended deformation of the expandable tip.Type: GrantFiled: May 2, 2017Date of Patent: October 18, 2022Assignee: Affera, Inc.Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai, Ian Matthew Collier
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Publication number: 20220022957Abstract: Ablation systems and methods of the present disclosure control lesion depth and width such that, for example, wide and shallow lesions can be formed in target tissue in an anatomic structure of a patient during a medical procedure. Such wide and shallow lesions can be useful for treating, for example, thin tissue such as atrial tissue in atria of the heart of the patient.Type: ApplicationFiled: October 6, 2021Publication date: January 27, 2022Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Publication number: 20210169569Abstract: Ablation systems and methods of the present disclosure control lesion depth and width such that, for example, wide and shallow lesions can be formed in target tissue in an anatomic structure of a patient during a medical procedure. Such wide and shallow lesions can be useful for treating, for example, thin tissue such as atrial tissue in atria of the heart of the patient.Type: ApplicationFiled: February 5, 2021Publication date: June 10, 2021Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Patent number: 10939956Abstract: Ablation systems and methods of the present disclosure are directed toward delivering pulsed radiofrequency (RF) energy to target tissue. The pulsations of the RF energy, combined with cooling at a surface of the target tissue, can advantageously promote local heat transfer in the target tissue to form lesions having dimensions larger than those that can be safely formed in tissue using non-pulsed RF energy under similar conditions.Type: GrantFiled: May 2, 2017Date of Patent: March 9, 2021Assignee: Affera, Inc.Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Patent number: 10932850Abstract: Ablation systems and methods of the present disclosure control lesion depth and width such that, for example, wide and shallow lesions can be formed in target tissue in an anatomic structure of a patient during a medical procedure. Such wide and shallow lesions can be useful for treating, for example, thin tissue such as atrial tissue in atria of the heart of the patient.Type: GrantFiled: May 2, 2017Date of Patent: March 2, 2021Assignee: Affera, Inc.Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Patent number: 10869719Abstract: Ablation systems and methods of the present disclosure are directed toward delivering pulsed radiofrequency (RF) energy to target tissue. The pulsations of the RF energy, combined with cooling at a surface of the target tissue, can advantageously promote local heat transfer in the target tissue to form lesions having dimensions larger than those that can be safely formed in tissue using non-pulsed RF energy under similar conditions.Type: GrantFiled: May 2, 2017Date of Patent: December 22, 2020Assignee: Affera, Inc.Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Patent number: 10507057Abstract: Ablation systems of the present disclosure facilitate the safe formation of wide and deep lesions. For example, ablation systems of the present disclosure can allow for the flow of irrigation fluid and blood through an expandable ablation electrode, resulting in efficient and effective cooling of the ablation electrode as the ablation electrode delivers energy at a treatment site of the patient. Additionally, or alternatively, ablation systems of the present disclosure can include a deformable ablation electrode and a plurality of sensors that, in cooperation, sense the deformation of the ablation electrode, to provide a robust indication of the extent and direction of contact between the ablation electrode and tissue at a treatment site.Type: GrantFiled: May 2, 2017Date of Patent: December 17, 2019Assignee: Affera, Inc.Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Publication number: 20170312024Abstract: Ablation systems and methods of the present disclosure control lesion depth and width such that, for example, wide and shallow lesions can be formed in target tissue in an anatomic structure of a patient during a medical procedure. Such wide and shallow lesions can be useful for treating, for example, thin tissue such as atrial tissue in atria of the heart of the patient.Type: ApplicationFiled: May 2, 2017Publication date: November 2, 2017Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Publication number: 20170312007Abstract: Ablation systems and methods of the present disclosure are directed toward delivering pulsed radiofrequency (RF) energy to target tissue. The pulsations of the RF energy, combined with cooling at a surface of the target tissue, can advantageously promote local heat transfer in the target tissue to form lesions having dimensions larger than those that can be safely formed in tissue using non-pulsed RF energy under similar conditions.Type: ApplicationFiled: May 2, 2017Publication date: November 2, 2017Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Publication number: 20170312028Abstract: Ablation systems of the present disclosure facilitate the safe formation of wide and deep lesions. For example, ablation systems of the present disclosure can allow for the flow of irrigation fluid and blood through an expandable ablation electrode, resulting in efficient and effective cooling of the ablation electrode as the ablation electrode delivers energy at a treatment site of the patient. Additionally, or alternatively, ablation systems of the present disclosure can include a deformable ablation electrode and a plurality of sensors that, in cooperation, sense the deformation of the ablation electrode, to provide a robust indication of the extent and direction of contact between the ablation electrode and tissue at a treatment site.Type: ApplicationFiled: May 2, 2017Publication date: November 2, 2017Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Publication number: 20170312020Abstract: Devices, systems, and methods of the present disclosure can overcome physical constraints associated with catheter introduction to facilitate the use of a catheter with a large distal portion as part of a medical procedure benefiting from such a large distal portion, such as, for example, cardiac ablation. More specifically, devices, systems, and methods of the present disclosure can compress an expandable tip of a catheter from an expanded state to a compressed state along a tapered surface of an insertion sleeve for advancement of the expandable tip into vasculature of a patient. The tapered surface of the insertion sleeve can, for example, apply compressive forces at an angle against the advancing expandable tip. As compared to other approaches to the application of compressive force to an expandable tip, compressing the expandable tip using an angled force can reduce the likelihood of unintended deformation of the expandable tip.Type: ApplicationFiled: May 2, 2017Publication date: November 2, 2017Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai, Ian Matthew Collier
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Publication number: 20170312025Abstract: Ablation systems and methods of the present disclosure are directed toward delivering pulsed radiofrequency (RF) energy to target tissue. The pulsations of the RF energy, combined with cooling at a surface of the target tissue, can advantageously promote local heat transfer in the target tissue to form lesions having dimensions larger than those that can be safely formed in tissue using non-pulsed RF energy under similar conditions.Type: ApplicationFiled: May 2, 2017Publication date: November 2, 2017Inventors: Doron Harlev, Andrew Miles Wallace, Luke Tsai
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Publication number: 20070121412Abstract: An address decoder. The address decoder includes a plurality of decoder circuits. Each decoder circuit includes a first stage including a first logic circuit having n?1 inputs, the n?1 inputs being a subset of n inputs conveyed to each decoder circuit. Each decoder circuit further includes a second stage having a second and third logic circuits. Both the second and third logic circuits receive an output provided by the first logic circuit. The second logic circuit also receives the other one of the n bits, while the third logic circuit receives its complement. The second and third logic circuits provide second and third outputs, respectively. The address decoder is configured to assert one of a plurality of address selection outputs by asserting one of the second or third outputs of one of the decoder circuits, while de-asserting both the second or third outputs of the other decoder circuits.Type: ApplicationFiled: November 28, 2005Publication date: May 31, 2007Inventor: Luke Tsai