Patents by Inventor Tim A. Fischell
Tim A. Fischell 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: 20240225507Abstract: An intravascular catheter for nerve activity ablation and/or sensing includes one or more needles advanced through supported guide tubes (needle guiding elements) which expand to contact the interior surface of the wall of the renal artery or other vessel of a human body allowing the needles to be advanced though the vessel wall into the extra-luminal tissue including the media, adventitia and periadvential space. The catheter also includes structures which provide radial and lateral support to the guide tubes so that the guide tubes open uniformly and maintain their position against the interior surface of the vessel wall as the sharpened needles are advanced to penetrate into the vessel wall. Electrodes near the distal ends of the needles allow sensing of nerve activity before and after attempted renal denervation. In a combination embodiment ablative energy or fluid is delivered from the needles in or near the adventitia to ablate nerves outside of the media while sparing nerves within the media.Type: ApplicationFiled: February 8, 2024Publication date: July 11, 2024Inventors: David R. Fischell, Tim A. Fischell, Vartan Ghazarossian, Steven Almany, Michael Sasha John
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Publication number: 20240215946Abstract: An imaging catheter apparatus can include an elongate shaft assembly having a proximal shaft portion and a distal shaft portion. The shaft assembly can be configured to carry an imaging transducer such that the imaging transducer is locatable at or near a distal portion of the elongate shaft assembly. At least one coupler can be attached to the elongate shaft assembly. The at least one coupler configured to permit an end user to at least one of couple or attach at least one of a guidewire or an interventional medical device to the elongate shaft assembly via the at least one coupler. For example, the at least one coupler can include an elastic sleeve. The elastic sleeve can expand to accommodate passage of a guidewire or interventional medical device therethrough. Then, the elastic sleeve can relax or shrink to grip the interventional medical device, such as to secure or stabilize its position with respect to the imaging catheter, such as for performing a medical procedure.Type: ApplicationFiled: April 28, 2023Publication date: July 4, 2024Inventors: Arunpreet Kahlon, Tim A. Fischell
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Patent number: 11998236Abstract: Intravascular delivery system is designed for a safe and efficient access to secondary and tertiary vascular structures, such as the branches of the coronary sinus, to enhance the delivery and deployment of various catheters, such as, for example, pacemaker electrical leads. The over-the-wire system features a straight, or alternatively shaped, micro-catheter distal tip of an inner catheter that seamlessly cooperates with a peel-away reinforced outer catheter. The inner catheter and the peel-away reinforced outer catheter are advanced in their engaged mode of operation towards (or beyond) the target site. Subsequently, the inner and outer catheters are disengaged, and the inner catheter is removed from the outer catheter. A pacemaker lead may be advanced over the wire inside the outer catheter to the target site for deployment. Subsequently, the outer catheter is easily split and may be rapidly removed from the blood vessel.Type: GrantFiled: January 12, 2024Date of Patent: June 4, 2024Assignee: VANTIS VASCULAR, INC.Inventors: Tim A. Fischell, Frank S. Saltiel, Xiaoke Liu, Jeffrey D. Payne
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Patent number: 11980408Abstract: An intravascular catheter for peri-vascular and/or peri-urethral tissue ablation includes multiple needles advanced through supported guide tubes which expand with open ends around a central axis to engage the interior surface of the wall of the renal artery or other vessel of a human body allowing the injection an ablative fluid for ablating tissue, and/or nerve fibers in the outer layer or deep to the outer layer of the vessel, or in prostatic tissue. The system also includes means to limit and/or adjust the depth of penetration of the ablative fluid into and beyond the tissue of the vessel wall. The preferred embodiment of the catheter includes structures which provide radial and lateral support to the guide tubes so that the guide tubes open uniformly and maintain their position against the interior surface of the vessel wall as the sharpened injection needles are advanced to penetrate into the vessel wall.Type: GrantFiled: September 5, 2019Date of Patent: May 14, 2024Assignee: Ablative Solutions, Inc.Inventors: David R. Fischell, Tim A. Fischell, Robert Ryan Ragland, Darrin James Kent, Andy Edward Denison, Eric Thomas Johnson, Jeff Alan Burke, Christopher Scott Hayden
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Publication number: 20240138877Abstract: Intravascular delivery system is designed for a safe and efficient access to secondary and tertiary vascular structures, such as the branches of the coronary sinus, to enhance the delivery and deployment of various catheters, such as, for example, pacemaker electrical leads. The over-the-wire system features a straight, or alternatively shaped, micro-catheter distal tip of an inner catheter that seamlessly cooperates with a peel-away reinforced outer catheter. The inner catheter and the peel-away reinforced outer catheter are advanced in their engaged mode of operation towards (or beyond) the target site. Subsequently, the inner and outer catheters are disengaged, and the inner catheter is removed from the outer catheter. A pacemaker lead may be advanced over the wire inside the outer catheter to the target site for deployment. Subsequently, the outer catheter is easily split and may be rapidly removed from the blood vessel.Type: ApplicationFiled: January 12, 2024Publication date: May 2, 2024Inventors: Tim A. Fischell, Frank S. Saltiel, Xiaoke Liu, Jeffrey D. Payne
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Publication number: 20240138982Abstract: Methods, apparatuses, and systems for performing a valve replacement or repair. Apparatuses may include systems and may include an outer catheter, one or more interchangeable inner catheters, a guidewire and an expandable chordae tendinae deflector. Also described herein are rapid pacing sheaths that may be used with any of these apparatuses and methods.Type: ApplicationFiled: January 11, 2024Publication date: May 2, 2024Inventors: Tim A. FISCHELL, Frank SALTIEL
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Patent number: 11964113Abstract: At the present time, physicians often treat patients with atrial fibrillation (AF) using radiofrequency (RF) catheter systems to ablate conducting tissue in the wall of the Left Atrium of the heart around the ostium of the pulmonary veins. These systems are expensive and take time consuming to use. The present invention circular ablation system CAS includes a multiplicity of expandable needles that can be expanded around a central axis and positioned to inject a fluid like ethanol to ablate conductive tissue in a ring around the ostium of a pulmonary vein quickly and without the need for expensive capital equipment. The expansion of the needles is accomplished by self-expanding or balloon expandable structures. The invention includes centering means so that the needles will be situated in a pattern surrounding the outside of the ostium of a vein. Also included are members that limit the distance of penetration of the needles into the wall of the left atrium, or the aortic wall.Type: GrantFiled: April 16, 2021Date of Patent: April 23, 2024Assignee: Ablative Solutions, Inc.Inventors: David R. Fischell, Tim A. Fischell
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Patent number: 11964091Abstract: A method and system for performing transseptal extracorporeal membrane oxygenation is disclosed. The method may include puncturing a septum between the right atrium and the left atrium and advancing a catheter system through the puncture and into the aorta. A first portion of the catheter system can remove blood from the patient, in some examples near the inferior vena cava. A second portion can return oxygenated blood to the patient, through the transseptal puncture and into the aorta.Type: GrantFiled: October 10, 2023Date of Patent: April 23, 2024Assignee: Vantis Vascular, Inc.Inventors: Tim A. Fischell, Frank Saltiel, Jeffrey Payne
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Publication number: 20240123187Abstract: The subject guide catheter extension/pre-dilatation system includes an outer delivery sheath, an inner member extending within the sheath, and a mechanism for engagement/disengagement of the inner member to/from the sheath. The inner member is configured with a tapered distal tip having a delivery micro-catheter and a pre-dilatation balloon member attached to the tapered distal tip in proximity to the micro-catheter. The outer delivery sheath and the inner member are modified for different engagement/disengagement mechanisms operation. The outer delivery sheath comprises one or more holes configured to reduce or eliminate myocardial ischemia risk.Type: ApplicationFiled: October 14, 2022Publication date: April 18, 2024Inventors: PAUL TEIRSTEIN, TIM A. FISCHELL, FRANK S. SALTIEL
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Patent number: 11944373Abstract: An intravascular catheter for peri-vascular and/or peri-urethral tissue ablation includes multiple needles advanced through supported guide tubes which expand around a central axis to engage the interior surface of the wall of the renal artery or other vessel of a human body allowing the injection an ablative fluid for ablating tissue, and/or nerve fibers in the outer layer or deep to the outer layer of the vessel, or in prostatic tissue. The system may also include a means to limit and/or adjust the depth of penetration of the ablative fluid into and beyond the tissue of the vessel wall. The catheter may also include structures which provide radial and/or lateral support to the guide tubes so that the guide tubes expand uniformly and maintain their position against the interior surface of the vessel wall as the sharpened injection needles are advanced to penetrate into the vessel wall.Type: GrantFiled: February 11, 2021Date of Patent: April 2, 2024Assignee: Ablative Solutions, Inc.Inventors: David R. Fischell, Tim A. Fischell, Robert Ryan Ragland, Darrin James Kent, Andy Edward Denison, Eric Thomas Johnson, Jeff Alan Burke, Christopher Scott Hayden
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Patent number: 11937933Abstract: An intravascular catheter for nerve activity ablation and/or sensing includes one or more needles advanced through supported guide tubes (needle guiding elements) which expand to contact the interior surface of the wall of the renal artery or other vessel of a human body allowing the needles to be advanced though the vessel wall into the extra-luminal tissue including the media, adventitia and periadvential space. The catheter also includes structures which provide radial and lateral support to the guide tubes so that the guide tubes open uniformly and maintain their position against the interior surface of the vessel wall as the sharpened needles are advanced to penetrate into the vessel wall. Electrodes near the distal ends of the needles allow sensing of nerve activity before and after attempted renal denervation. In a combination embodiment ablative energy or fluid is delivered from the needles in or near the adventitia to ablate nerves outside of the media while sparing nerves within the media.Type: GrantFiled: December 18, 2020Date of Patent: March 26, 2024Assignee: Ablative Solutions, Inc.Inventors: David R. Fischell, Tim A. Fischell, Vartan Ghazarossian, Steven Almany, Michael Sasha John
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Patent number: 11925554Abstract: Methods, apparatuses, and systems for performing a valve replacement or repair. Apparatuses may include systems and may include an outer catheter, one or more interchangeable inner catheters, a guidewire and an expandable chordae tendinae deflector. Also described herein are rapid pacing sheaths that may be used with any of these apparatuses and methods.Type: GrantFiled: August 11, 2023Date of Patent: March 12, 2024Assignee: Vantis Vascular, Inc.Inventors: Tim A. Fischell, Frank Saltiel
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Patent number: 11903613Abstract: Intravascular delivery system is designed for a safe and efficient access to secondary and tertiary vascular structures, such as the branches of the coronary sinus, to enhance the delivery and deployment of various catheters, such as, for example, pacemaker electrical leads. The over-the-wire system features a straight, or alternatively shaped, micro-catheter distal tip of an inner catheter that seamlessly cooperates with a peel-away reinforced outer catheter. The inner catheter and the peel-away reinforced outer catheter are advanced in their engaged mode of operation towards (or beyond) the target site. Subsequently, the inner and outer catheters are disengaged, and the inner catheter is removed from the outer catheter. A pacemaker lead may be advanced over the wire inside the outer catheter to the target site for deployment. Subsequently, the outer catheter is easily split and may be rapidly removed from the blood vessel.Type: GrantFiled: June 12, 2023Date of Patent: February 20, 2024Assignee: VANTIS VASCULAR, INC.Inventors: Tim A. Fischell, Frank S. Saltiel, Xiaoke Liu, Jeffrey D. Payne
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Publication number: 20240033479Abstract: A catheter-based/intravascular ablation (denervation) system includes a multiplicity of needles which expand open around a central axis to engage the wall of a blood vessel, or the wall of the left atrium, allowing the injection of a cytotoxic or/or neurotoxic solution for ablating conducting tissue, or nerve fibers around the ostium of the pulmonary vein, or circumferentially in or just beyond the outer layer of the renal artery. The expandable needle delivery system is formed with self-expanding materials and include structures, near the end portion of the needles, or using separate guide tubes. The system also includes means to limit and/or adjust the depth of penetration of the ablative fluid into the tissue of the wall of the targeted blood vessel. The preferred embodiment of the catheter delivered through the vascular system of a patient includes a multiplicity of expandable guide tubes that engage the wall of a blood vessel.Type: ApplicationFiled: August 14, 2023Publication date: February 1, 2024Inventors: David R. Fischell, Tim A. Fischell
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Publication number: 20230404660Abstract: At the present time, physicians often treat patients with atrial fibrillation (AF) using radiofrequency (RF) catheter systems to ablate conducting tissue in the wall of the Left Atrium of the heart around the ostium of the pulmonary veins. These systems are expensive and take time consuming to use. The present invention circular ablation system CAS includes a multiplicity of expandable needles that can be expanded around a central axis and positioned to inject a fluid like ethanol to ablate conductive tissue in a ring around the ostium of a pulmonary vein quickly and without the need for expensive capital equipment. The expansion of the needles is accomplished by self-expanding or balloon expandable structures. The invention includes centering means so that the needles will be situated in a pattern surrounding the outside of the ostium of a vein. Also included are members that limit the distance of penetration of the needles into the wall of the left atrium.Type: ApplicationFiled: June 12, 2023Publication date: December 21, 2023Inventors: David R. Fischell, Tim A. Fischell
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Publication number: 20230404457Abstract: An intravascular catheter for peri-vascular nerve activity sensing or measurement includes multiple needles advanced through supported guide tubes (needle guiding elements) which expand with open ends around a central axis to contact the interior surface of the wall of the renal artery or other vessel of a human body allowing the needles to be advanced though the vessel wall into the perivascular space. The system also may include means to limit and/or adjust the depth of penetration of the needles. The catheter also includes structures which provide radial and lateral support to the guide tubes so that the guide tubes open uniformly and maintain their position against the interior surface of the vessel wall as the sharpened needles are advanced to penetrate into the vessel wall.Type: ApplicationFiled: July 25, 2023Publication date: December 21, 2023Inventors: David R. Fischell, Tim A. Fischell, Vartan Ghazarossian, Steven Almany
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Publication number: 20230404620Abstract: Intravascular delivery system is designed for a safe and efficient access to secondary and tertiary vascular structures, such as the branches of the coronary sinus, to enhance the delivery and deployment of various catheters, such as, for example, pacemaker electrical leads. The over-the-wire system features a straight, or alternatively shaped, micro-catheter distal tip of an inner catheter that seamlessly cooperates with a peel-away reinforced outer catheter. The inner catheter and the peel-away reinforced outer catheter are advanced in their engaged mode of operation towards (or beyond) the target site. Subsequently, the inner and outer catheters are disengaged, and the inner catheter is removed from the outer catheter. A pacemaker lead may be advanced over the wire inside the outer catheter to the target site for deployment. Subsequently, the outer catheter is easily split and may be rapidly removed from the blood vessel.Type: ApplicationFiled: June 12, 2023Publication date: December 21, 2023Inventors: Tim A. Fischell, Frank S. Saltiel, Xiaoke Liu, Jeffrey D. Payne
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Patent number: 11779362Abstract: A catheter for facilitating re-entry of a re-entry wire into a true lumen or into any desired region of a blood vessel may have an elongate shaft with a first lumen. A distal port and a first proximal port are fluidly coupled with the first lumen. A wire re-entry port is adjacent the distal end of the elongate shaft. The wire re-entry port has a re-entry axis. An ultrasound transducer on the catheter is configured to produce an image the blood vessel, and has a central axis that allows visualization of the re-entry wire as it exits the re-entry port and re-enters the true lumen. This allows the operator to ensure that the re-entry wire re-enters the true lumen in a desired location and does not damage the vessel.Type: GrantFiled: February 7, 2023Date of Patent: October 10, 2023Assignee: TruVue, Inc.Inventors: Khaldoon Alaswad, Tim A. Fischell
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Patent number: 11766328Abstract: Methods, apparatuses, and systems for performing a valve replacement or repair. Apparatuses may include systems and may include an outer catheter, one or more interchangeable inner catheters, a guidewire and an expandable chordae tendinae deflector. Also described herein are rapid pacing sheaths that may be used with any of these apparatuses and methods.Type: GrantFiled: January 6, 2023Date of Patent: September 26, 2023Assignee: Vantis Vascular, Inc.Inventors: Tim A. Fischell, Frank Saltiel
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Publication number: 20230293861Abstract: The subject guide catheter extension/pre-dilatation system includes an outer delivery sheath, an inner member extending within the sheath, and a mechanism for engagement/disengagement of the inner member to/from the sheath. The inner member is configured with a tapered distal tip having a delivery micro-catheter and a pre-dilatation balloon member attached to the tapered distal tip in proximity to the micro-catheter. The outer delivery sheath and the inner member are modified for different engagement/disengagement mechanisms operation. The delivery micro-catheter provides for an improved crossability for the balloon member to the treatment site in an atraumatic, expedited and convenient fashion. During the cardiac procedure, a guidewire and a guide catheter are advanced to the vicinity of the treatment site within a blood vessel.Type: ApplicationFiled: March 28, 2023Publication date: September 21, 2023Inventors: Tim A. Fischell, Frank S. Saltiel