Patents by Inventor Gerry McCaffrey
Gerry McCaffrey 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: 11931560Abstract: The disclosure relates to devices and methods for the treatment of edema which devices use an intravascular edema pump with an anticoagulant. The invention provides devices and methods for treating edema that use an indwelling catheter to place an impeller in a blood vessel of a patient, near an outlet of a lymphatic duct. Operating the impeller creates a local depression in blood pressure, which promotes drainage of lymph from the lymphatic system. The catheter is also used to release an anticoagulant such as heparin to wash and lubricate the impeller. Specifically, the anticoagulant inhibits clotting, hemolysis, or thrombosis from occurring and interfering with smooth operation of the impeller.Type: GrantFiled: February 26, 2020Date of Patent: March 19, 2024Assignee: White Swell Medical LtdInventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Patent number: 11918466Abstract: A medical device delivery system can include a dilator including a tip having a taper in a distal direction, a coupler, and a flap that radially protrudes from the tip. The flap can be configured to bend against a body lumen to cover at least a portion of the delivery system when the dilator is tracked through the body lumen. A medical device delivery system can include a dilator including a tip having a lumen and a coupler having a lumen. The coupler can be configured to securely connect to the tip such that the lumen of the tip is aligned with the lumen of the coupler to allow a guide wire to pass therethrough. Methods for loading a medical device into a delivery catheter are also disclosed.Type: GrantFiled: February 17, 2021Date of Patent: March 5, 2024Assignee: Medtronic, Inc.Inventors: Niall Duffy, John Gallagher, Gerry McCaffrey, Noam Miller, Glenn Stante
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Publication number: 20240001105Abstract: The disclosure relates to devices and methods for the treatment of edema, which devices use a restrictor for flow compensation. Devices and methods of the invention further use a flow-restrictor in the circulatory system, upstream of an intravascular pump, to balance pressure changes induced by the pump and to compensate for downstream flow. The device may be provided as an indwelling, intravascular catheter with a mechanical pump such as an impeller and a selectively deployable restrictor such as an inflatable balloon. Congestive heart failure or edema is treated by \ operating the pump in an innominate vein and using the restrictor for flow compensation, to restrict the upstream flow and thus amplify or maintain pressure reduction at the lymphatic outlet.Type: ApplicationFiled: September 14, 2023Publication date: January 4, 2024Applicant: White Swell Medical LtdInventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Patent number: 11850030Abstract: Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is mounted with one end coupled to the distal end of the shaft while the other end of the sensor is not coupled to the catheter so that a portion of the sensor is spaced apart from the distal end of the shaft.Type: GrantFiled: December 27, 2018Date of Patent: December 26, 2023Assignee: Medtronic Vascular, Inc.Inventors: Gerry McCaffrey, Fiachra Sweeney, Christopher Murphy
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Publication number: 20230390062Abstract: Embodiments hereof relate to a delivery system for a transcatheter valve prosthesis, the delivery system having an integral centering mechanism to circumferentially center both the delivery system and the valve prosthesis within a vessel at the target implantation site. The centering mechanism may include expandable wings that may be selectively aligned with openings formed through a sidewall of an outer shaft of the delivery system, a coiled wing that may be selectively exposed through an opening formed through a sidewall of an outer shaft of the delivery system, a plurality of elongated filaments extending through a plurality of lumens of an outermost shaft of the delivery system that may be selectively deployed or expanded, an outer shaft that includes at least one pre-formed deflection segment formed thereon, a tool having a deployable lever arm, and/or a plurality of loops deployable via simultaneous longitudinal and rotational movement.Type: ApplicationFiled: August 18, 2023Publication date: December 7, 2023Inventors: Sarah AHLBERG, Marc ANDERSON, Donna BARRETT, Evelyn BIRMINGHAM, Constantin CIOBANU, Kieran CUNNINGHAM, Paul DEVEREUX, Niall DUFFY, John GALLAGHER, Patrick GRIFFIN, Frank HAREWOOD, Gerry MCCAFFREY, DEIRDRE MCGOWAN SMYTH, Bernard MULVIHILL, Herinaina Rabarimanantsoa JAMOUS, Joel RACCHINI, Jeffrey SANDSTROM, Frank WHITE
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Publication number: 20230364412Abstract: The disclosure relates to devices and methods for the treatment of edema using a purge-free system. The invention provides devices and methods useful for treating edema by means of an indwelling catheter that is placed in a blood vessel of a patient and used to pump blood to cause a decrease in pressure at an outlet of a lymphatic duct. The catheter pumps blood by means of an impeller but is purge-free in that the catheter does not include a system for purging or flushing catheter components with a purge fluid. The purge-free catheter avoids blood-related mechanical complications such as clotting or thrombosis by means of an impermeable sleeve or shroud that protects moving parts of the impeller drive system.Type: ApplicationFiled: June 23, 2023Publication date: November 16, 2023Inventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Publication number: 20230347115Abstract: The disclosure relates to devices and methods for the treatment of edema, which devices use a restrictor for flow compensation. Devices and methods of the invention further use a flow-restrictor in the circulatory system, upstream of an intravascular pump, to balance pressure changes induced by the pump and to compensate for downstream flow. The device may be provided as an indwelling, intravascular catheter with a mechanical pump such as an impeller and a selectively deployable restrictor such as an inflatable balloon. Congestive heart failure or edema is treated by\operating the pump in an innominate vein and using the restrictor for flow compensation, to restrict the upstream flow and thus amplify or maintain pressure reduction at the lymphatic outlet.Type: ApplicationFiled: June 23, 2023Publication date: November 2, 2023Inventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Publication number: 20230347113Abstract: The disclosure relates to devices and methods for the treatment of edema that uses an impeller with a balloon that may be mounted on the impeller housing. The invention provides devices and methods for treatment of edema that use an indwelling catheter with an impeller to lower pressure at an outlet of a lymphatic duct and a balloon on the impeller to guide and to restrict blood flow. The balloon restricts return flow from the jugular and guides that flow into the impeller cage. By funneling the flow into the impeller cage, a rate of flow down the vessel may be increased, resulting in a lateral pressure decrease effecting the lymphatic outlet. Because the lymphatic outlet is subject to a pressure decrease, fluids in the lymphatic system drain to the outlet and into the circulatory system.Type: ApplicationFiled: April 24, 2023Publication date: November 2, 2023Inventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Patent number: 11793996Abstract: The disclosure relates to devices and methods for the treatment of edema, which devices use a restrictor for flow compensation. Devices and methods of the invention further use a flow-restrictor in the circulatory system, upstream of an intravascular pump, to balance pressure changes induced by the pump and to compensate for downstream flow. The device may be provided as an indwelling, intravascular catheter with a mechanical pump such as an impeller and a selectively deployable restrictor such as an inflatable balloon. Congestive heart failure or edema is treated by\operating the pump in an innominate vein and using the restrictor for flow compensation, to restrict the upstream flow and thus amplify or maintain pressure reduction at the lymphatic outlet.Type: GrantFiled: February 26, 2020Date of Patent: October 24, 2023Assignee: White Swell Medical LtdInventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Patent number: 11724095Abstract: The disclosure relates to devices and methods for the treatment of edema using a purge-free system. The invention provides devices and methods useful for treating edema by means of an indwelling catheter that is placed in a blood vessel of a patient and used to pump blood to cause a decrease in pressure at an outlet of a lymphatic duct. The catheter pumps blood by means of an impeller but is purge-free in that the catheter does not include a system for purging or flushing catheter components with a purge fluid. The purge-free catheter avoids blood-related mechanical complications such as clotting or thrombosis by means of an impermeable sleeve or shroud that protects moving parts of the impeller drive system.Type: GrantFiled: February 26, 2020Date of Patent: August 15, 2023Assignee: White Swell Medical LtdInventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Patent number: 11717652Abstract: The disclosure relates to devices and methods for the treatment of edema, which devices use a restrictor for flow compensation. Devices and methods of the invention further use a flow-restrictor in the circulatory system, upstream of an intravascular pump, to balance pressure changes induced by the pump and to compensate for downstream flow. The device may be provided as an indwelling, intravascular catheter with a mechanical pump such as an impeller and a selectively deployable restrictor such as an inflatable balloon. Congestive heart failure or edema is treated by \ operating the pump in an innominate vein and using the restrictor for flow compensation, to restrict the upstream flow and thus amplify or maintain pressure reduction at the lymphatic outlet.Type: GrantFiled: February 26, 2020Date of Patent: August 8, 2023Assignee: White Swell Medical LtdInventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Patent number: 11701012Abstract: A catheter, such as a fractional flow reserve catheter, includes an elongate shaft having a pressure sensing wire extending to the distal portion of the elongate shaft. The wire has a pressure sensor mounted on the distal end for measuring a pressure of a fluid within lumen of vessel. The pressure sensor wire is disposed within a pocket formed adjacent to the pressure sensor thereby minimizing the profile of the catheter. Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is spaced apart from the pressure sensor wire to allow the pressure sensor and the pressure sensor wire to move independently from one another.Type: GrantFiled: February 16, 2021Date of Patent: July 18, 2023Assignee: MEDTRONIC VASCULAR, INC.Inventors: Gerry McCaffrey, Christopher Murphy, Sean Ward, Fiachra Sweeney
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Patent number: 11660426Abstract: The disclosure relates to devices and methods for the treatment of edema that uses an impeller with a balloon that may be mounted on the impeller housing. The invention provides devices and methods for treatment of edema that use an indwelling catheter with an impeller to lower pressure at an outlet of a lymphatic duct and a balloon on the impeller to guide and to restrict blood flow. The balloon restricts return flow from the jugular and guides that flow into the impeller cage. By funneling the flow into the impeller cage, a rate of flow down the vessel may be increased, resulting in a lateral pressure decrease effecting the lymphatic outlet. Because the lymphatic outlet is subject to a pressure decrease, fluids in the lymphatic system drain to the outlet and into the circulatory system.Type: GrantFiled: February 26, 2020Date of Patent: May 30, 2023Assignee: White Swell Medical LtdInventors: Yaacov Nitzan, Ronan Keating, Shahaf Marmur, Or Inbar, Eamon Brady, Gerry McCaffrey, Reed Williston, Sagi Raz
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Publication number: 20220265152Abstract: A catheter, such as a fractional flow reserve catheter, includes an elongate shaft having a proximal end optionally coupled to a handle or luer fitting and a distal end having a distal opening. A pressure sensing wire extends to the distal portion of the elongate shaft to be coupled to a pressure sensor mounted on the distal end for measuring a pressure of a fluid within lumen of vessel. The pressure sensor wire is disposed within a pocket formed adjacent to the pressure sensor thereby minimizing the profile of the catheter. Bending or flexing stress or strain experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending or flexing stress and strain, the sensor is mounted so that the sensor is spaced apart from the elongate shaft of the catheter.Type: ApplicationFiled: May 10, 2022Publication date: August 25, 2022Inventors: Gerry MCCAFFREY, Christopher MURPHY, Fiachra SWEENEY, John KELLY
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Publication number: 20220175528Abstract: Embodiments hereof relate to a delivery system for a transcatheter valve prosthesis, the delivery system having an integral centering mechanism to circumferentially center both the delivery system and the valve prosthesis within a vessel at the target implantation site. The centering mechanism may include expandable wings that may be selectively aligned with openings formed through a sidewall of an outer shaft of the delivery system, a coiled wing that may be selectively exposed through an opening formed through a sidewall of an outer shaft of the delivery system, a plurality of elongated filaments extending through a plurality of lumens of an outermost shaft of the delivery system that may be selectively deployed or expanded, an outer shaft that includes at least one pre-formed deflection segment formed thereon, a tool having a deployable lever arm, and/or a plurality of loops deployable via simultaneous longitudinal and rotational movement.Type: ApplicationFiled: February 18, 2022Publication date: June 9, 2022Inventors: Sarah AHLBERG, Marc ANDERSON, Donna BARRETT, Evelyn BIRMINGHAM, Constantin CIOBANU, Kieran CUNNINGHAM, Paul DEVEREUX, Niall DUFFY, John GALLAGHER, Patrick GRIFFIN, Frank HAREWOOD, Gerry MCCAFFREY, DEIRDRE MCGOWAN SMYTH, Bernard MULVIHILL, Herinaina Rabarimanantsoa JAMOUS, Joel RACCHINI, Jeffrey SANDSTROM, Frank WHITE
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Patent number: 11330989Abstract: A catheter, such as a fractional flow reserve catheter, includes an elongate shaft having a proximal end optionally coupled to a handle or luer fitting and a distal end having a distal opening. A pressure sensing wire extends to the distal portion of the elongate shaft to be coupled to a pressure sensor mounted on the distal end for measuring a pressure of a fluid within lumen of vessel. The pressure sensor wire is disposed within a pocket formed adjacent to the pressure sensor thereby minimizing the profile of the catheter. Bending or flexing stress or strain experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending or flexing stress and strain, the sensor is mounted so that the sensor is spaced apart from the elongate shaft of the catheter.Type: GrantFiled: March 23, 2016Date of Patent: May 17, 2022Assignee: MEDTRONIC VASCULAR, INC.Inventors: Gerry McCaffrey, Christopher Murphy, Fiachra Sweeney, John Kelly
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Publication number: 20220104828Abstract: This disclosure relates to a catheter with a fluid flow restrictor (e.g., a balloon) that includes a flow path. The catheter is useful for creating, and maintaining, an area of reduced pressure within a blood vessel for removing excess fluid from a patient's body. In particular, the catheter is dimensioned for insertion into a blood vessel and includes a fluid flow restrictor that, when deployed, partially occludes the blood vessel. Pressure is reduced within the blood vessel downstream of the occlusion. The flow path allows some blood to flow past the restrictor, which prevents the blood vessel from stretching due to excessive pressure buildup, thereby allowing the area of reduced pressure to be maintained for extended periods of time.Type: ApplicationFiled: October 1, 2021Publication date: April 7, 2022Inventors: Ronan Keating, Or Inbar, Ilan Grunberg, Sagi Raz, Gerry Mccaffrey, Eamon Brady
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Publication number: 20220104827Abstract: This disclosure relates to a catheter system that for precisely positioning fluid flow restrictors within a blood vessel. In particular, this disclosure provides a catheter system that includes a sheath with a first fluid flow restrictor mounted thereto, and a catheter that is slidably disposed within the sheath and has a second fluid flow restrictor mounted thereto. Inside a blood vessel, the sheath and the catheter are separately slidable, thereby allowing the first and second fluid flow restrictors to be positioned at precise locations within the blood vessel.Type: ApplicationFiled: October 1, 2021Publication date: April 7, 2022Inventors: Ronan Keating, Or Inbar, Ilan Grunberg, Sagi Raz, Gerry Mccaffrey, Eamon Brady
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Publication number: 20210379329Abstract: The invention provides intravascular devices for treating certain medical conditions such as edema without causing thrombosis. The intravascular devices of the disclosure include non-thrombogenic surfaces that improve blood compatibility by reducing device-related thrombus formation and inflammatory reactions. The non-thrombogenic surfaces may include surface topographies (e.g., surface roughness) and modified chemistries (e.g., coatings and/or treatments), which prevent thrombosis by reducing local shear forces and inhibiting adhesion of blood clotting factors.Type: ApplicationFiled: June 8, 2021Publication date: December 9, 2021Inventors: Ronan Keating, Eamon Brady, Gerry McCaffrey, Sagi Raz, Or Inbar
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Publication number: 20210378677Abstract: The invention provides intravascular devices for treating certain medical conditions such as edema without causing thrombosis. The intravascular devices of the disclosure include non-thrombogenic surfaces that improve blood compatibility by reducing device-related thrombus formation and inflammatory reactions. The non-thrombogenic surfaces may include surface topographies (e.g., surface roughness) and modified chemistries (e.g., coatings and/or treatments), which prevent thrombosis by reducing local shear forces and inhibiting adhesion of blood clotting factors.Type: ApplicationFiled: June 8, 2021Publication date: December 9, 2021Inventors: Ronan Keating, Eamon Brady, Gerry McCaffrey, Sagi Raz, Or Inbar, Ann Marie Cannon