Patents by Inventor Niall F. Duffy

Niall F. Duffy 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).

  • Publication number: 20240131305
    Abstract: An introducer includes an introducer hub and a vasodilating drug-delivery introducer sheath coupled to the hub and extending distally therefrom. The introducer sheath may include a primary lumen and infusion lumens for delivering a therapeutic agent such as a vasodilator through ports in the introducer sheath or may include an outer porous layer for the therapeutic agent to be delivered to the vessel, or may include at least one drug-coated outer layer for the therapeutic agent to be released from the drug-coated outer layer.
    Type: Application
    Filed: October 13, 2023
    Publication date: April 25, 2024
    Inventor: Niall F. Duffy
  • Publication number: 20240081992
    Abstract: A delivery system for prosthetic medical devices. The delivery system may include a delivery system configured to be driven between a containment configuration and a deployment configuration. The delivery system may be configured to cause relative motion between a delivery capsule and a prosthetic device within the delivery capsule. The delivery system may include a first fluid pathway and a second fluid pathway and may be configured to switch between the first fluid pathway and the second fluid pathway as the delivery system transitions toward a deployment configuration. The delivery system may include a recapture circuit configured to enable the delivery system to recapture a prosthetic device using the delivery capsule.
    Type: Application
    Filed: November 17, 2023
    Publication date: March 14, 2024
    Inventor: Niall F. Duffy
  • Patent number: 11833046
    Abstract: A delivery system for prosthetic medical devices. The delivery system may include a delivery system configured to be driven between a containment configuration and a deployment configuration. The delivery system may be configured to cause relative motion between a delivery capsule and a prosthetic device within the delivery capsule. The delivery system may include a first fluid pathway and a second fluid pathway and may be configured to switch between the first fluid pathway and the second fluid pathway as the delivery system transitions toward a deployment configuration. The delivery system may include a recapture circuit configured to enable the delivery system to recapture a prosthetic device using the delivery capsule.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: December 5, 2023
    Assignee: Medtronic Vascular, Inc.
    Inventor: Niall F. Duffy
  • Publication number: 20230346578
    Abstract: The present disclosure relates to delivery devices for transcatheter stented prosthesis loading, delivery and implantation. The delivery devices provide a loaded delivery state in which the stented prosthesis is loaded and compressed over the delivery device. The compression of the stented prosthesis can be adjusted with one or more elongate tension members, which extend around the stented prosthesis and proximately to an actuation and release assembly that can be provided as part of a handle assembly. The delivery device can be manipulated to adjust tension in the tension members to permit the stented prosthesis to compress, self-expand, and ultimately release from the shaft assembly. In some embodiments, the tension in one or more tension members is adjusted with one or more actuation and release assemblies.
    Type: Application
    Filed: July 12, 2023
    Publication date: November 2, 2023
    Inventors: Michael A. Gloss, Patrick Griffin, Jeffrey D. Sandstrom, David James O'Toole, Rishi Manda, Niall F. Duffy
  • Publication number: 20230277199
    Abstract: In some examples, a medical system includes a catheter having a proximal end and a distal end, a suction source configured to apply a suction force to the catheter to aspirate a material proximate the distal end of the catheter and from within vasculature of the patient, and a fluid controller configured to control an introduction of a fluid into the catheter between the proximal and distal ends to reduce an amount of blood aspirated from a blood vessel of the vasculature of the patient through the catheter.
    Type: Application
    Filed: January 30, 2023
    Publication date: September 7, 2023
    Inventor: Niall F. Duffy
  • Publication number: 20230190314
    Abstract: An example aspiration system includes an inner member configured to be received within an aspiration catheter lumen and disrupt a thrombus positioned within vasculature of a patient. The inner member includes a distal member at a distal portion of an elongated support member, where the distal member is configured to fit within the aspiration catheter lumen. The distal member defines a larger cross-sectional dimension than the elongated support member, the cross-section being taken in a direction orthogonal to a longitudinal axis of the support member, and is configured to be deployed distally outward from a distal opening of the aspiration catheter lumen to contact and disrupt a thrombus to facilitate the efficiency of a medical aspiration procedure. The distal member may include one or more tapered portions and a surface disruption configured to aid with the thrombus disruption.
    Type: Application
    Filed: December 15, 2022
    Publication date: June 22, 2023
    Inventors: Wanda F. Dent, Anthony J. O'Connor, Katherine L. Stevenson, Niall F. Duffy, Edward C. Stankard, Graham Robert Cole, Dion Gallagher
  • Publication number: 20230157762
    Abstract: Disclosed herein are techniques for implementing an intelligent assistance (“IA”) or extended intelligence (“EI”) ecosystem for soft tissue luminal applications. In various embodiments, a computing system analyzes first layer input data (indicating movement, position, and/or relative distance for a person(s) and object(s) in a room) and second layer input data. The second layer input data includes sensor and/or imaging data of a patient. Based on the analysis, the computing system generates one or more recommendations for guiding a medical professional in navigating a surgical device(s) with respect to one or more soft tissue luminal portions of the patient. The recommendation(s) include at least one mapped guide toward, in, and/or around the one or more soft tissue luminal portions. The mapped guide can include data corresponding to at least three dimensions, e.g., a 3D image/video. The computing system can present the recommendation(s) as image-based output, using a user experience device.
    Type: Application
    Filed: September 29, 2022
    Publication date: May 25, 2023
    Inventors: Peter N. Braido, Randal C. Schulhauser, Niall F. Duffy, Julie A. Benton, Zhongping Yang, Richard J. O'Brien, Walton W. Baxter, Roy A. Wilsker, Tal Davidson, William C. Harding, Max L. Balter, Joseph D. Brannan, Mark L. Stiger, Keith D. Perkins
  • Publication number: 20230110858
    Abstract: In some examples, a medical system includes an aspiration catheter defining a catheter lumen; and an inner member configured to be received in the catheter lumen and extend distally outward from a distal opening of the catheter, wherein the inner member comprises an elongated support structure configured to move axially within the catheter lumen; and a rigid member at a distal portion of the elongated support structure, wherein a proximal-facing surface of the rigid member defines one or more openings configured to deliver a fluid into vasculature of the patient to dilute or displace a volume of blood aspirated from of vasculature through the catheter lumen.
    Type: Application
    Filed: August 29, 2022
    Publication date: April 13, 2023
    Inventor: Niall F. Duffy
  • Publication number: 20230018787
    Abstract: A fluid diversion device configured in accordance with embodiments of the present technology can include, for example, a housing including channels configured to receive respective tubes, and a bore that extends laterally across the plurality of channels. The device can include an occlusion member disposed in the bore, where rotation of the occlusion member selectively occludes either a first subset of tubes or a second subset of tubes. The device can include an actuator that enables rotation of the occlusion member to a first position and a second position such that the first subset of tubes and the second subset of tubes are alternatively occluded in the first position or the second position for fluid communication in different directions relative to chambers of a delivery device operable to deploy and recapture the medical device.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 19, 2023
    Inventors: Niall F. Duffy, Gavin Kenny, Maurice Donoghue
  • Patent number: 11452599
    Abstract: A fluid diversion device configured in accordance with embodiments of the present technology can include, for example, a housing including channels configured to receive respective tubes, and a bore that extends laterally across the plurality of channels. The device can include an occlusion member disposed in the bore, where rotation of the occlusion member selectively occludes either a first subset of tubes or a second subset of tubes. The device can include an actuator that enables rotation of the occlusion member to a first position and a second position such that the first subset of tubes and the second subset of tubes are alternatively occluded in the first position or the second position for fluid communication in different directions relative to chambers of a delivery device operable to deploy and recapture the medical device.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: September 27, 2022
    Assignee: Twelve, Inc.
    Inventors: Niall F. Duffy, Gavin Kenny, Maurice Donoghue
  • Publication number: 20220061987
    Abstract: A delivery system for prosthetic medical devices. The delivery system may include a delivery system configured to be driven between a containment configuration and a deployment configuration. The delivery system may be configured to cause relative motion between a delivery capsule and a prosthetic device within the delivery capsule. The delivery system may include a first fluid pathway and a second fluid pathway and may be configured to switch between the first fluid pathway and the second fluid pathway as the delivery system transitions toward a deployment configuration. The delivery system may include a recapture circuit configured to enable the delivery system to recapture a prosthetic device using the delivery capsule.
    Type: Application
    Filed: August 2, 2021
    Publication date: March 3, 2022
    Inventor: Niall F. Duffy
  • Publication number: 20210290265
    Abstract: In some examples, a medical device includes a substrate defining a central port configured to provide surgical access to a surgical site opposite the substrate during a surgical procedure; and a plurality of reinforcement features disposed around the central port, wherein each reinforcement feature of the plurality of reinforcement features is configured to receive a suture, and wherein the plurality of reinforcement features are positioned to cause the substrate to tighten around the central port in response to tension being applied to ends of at least one suture connecting two or more reinforcement features.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 23, 2021
    Inventors: Niall F. Duffy, Yves Bayon
  • Publication number: 20200345489
    Abstract: A fluid diversion device configured in accordance with embodiments of the present technology can include, for example, a housing including channels configured to receive respective tubes, and a bore that extends laterally across the plurality of channels. The device can include an occlusion member disposed in the bore, where rotation of the occlusion member selectively occludes either a first subset of tubes or a second subset of tubes. The device can include an actuator that enables rotation of the occlusion member to a first position and a second position such that the first subset of tubes and the second subset of tubes are alternatively occluded in the first position or the second position for fluid communication in different directions relative to chambers of a delivery device operable to deploy and recapture the medical device.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Inventors: Niall F. Duffy, Gavin Kenny, Maurice Donoghue
  • Patent number: 8372055
    Abstract: A medical device including, e.g., an implantable medical lead or drug pump catheter, a guide member, or a sheath is delivered to a target location within a patient via a catheter capable of subselecting vessels or other cavities, passages, or the like within the patient's body. The catheter employs an inflatable member that, when actuated, acts to deflect a medical device to direct the device into a vessel or other cavity, passage, or the like branching off of, e.g., a vessel in which the catheter is arranged. In some examples, the inflatable member acts to deflect the delivery catheter, which in turn necessarily deflects the implantable medical device arranged therein. In other examples, the inflatable member acts to deflect the medical device to turn the device into a vessel or other cavity, passage, or the like branching off of the vessel in which the catheter is arranged.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: February 12, 2013
    Assignee: Medtronic, Inc.
    Inventors: Ronan M. Thornton, David T. Johnson, Niall F. Duffy
  • Publication number: 20110106099
    Abstract: The disclosure pertains to a lead extraction device which utilizes a chamfered coring tip to separate an implanted object, such as a pacemaker lead, from fibrous tissue and thereby permit the implanted object to be extracted from a body. The lead extraction device features an elongate body having a lead gripping mechanism. The gripping mechanism grips a lead to prevent kinking or simultaneous rotation of the lead with the lead extraction device that may cause tissue damage. The inner lumen of lead extraction device is preferably dimensioned so that a lead will fit within. The lead extraction device is thereby tracked over the lead. The chamfered coring tip on the distal end of the lead separates the lead from fibrous tissue. Through the disclosed lead extraction devices of the present disclosure, the lead may be separated along its length, as well as separated at its distal end from fibrous tissue, thereby permitting the lead to be readily extracted from the body.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 5, 2011
    Applicant: Medtronic, Inc.
    Inventors: Niall F. Duffy, James S. Smedley
  • Publication number: 20110098561
    Abstract: A medical device including, e.g., an implantable medical lead or drug pump catheter, a guide member, or a sheath is delivered to a target location within a patient via a catheter capable of subselecting vessels or other cavities, passages, or the like within the patient's body. The catheter employs an inflatable member that, when actuated, acts to deflect a medical device to direct the device into a vessel or other cavity, passage, or the like branching off of, e.g., a vessel in which the catheter is arranged. In some examples, the inflatable member acts to deflect the delivery catheter, which in turn necessarily deflects the implantable medical device arranged therein. In other examples, the inflatable member acts to deflect the medical device to turn the device into a vessel or other cavity, passage, or the like branching off of the vessel in which the catheter is arranged.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 28, 2011
    Applicant: Medtronic, Inc.
    Inventors: Ronan M. Thornton, David T. Johnson, Niall F. Duffy
  • Patent number: 6050973
    Abstract: An apparatus for limiting the pressure of inflation fluid injected into one or more balloon of a catheter device comprising a reservoir chamber having an inlet port coupled in fluid communication with an inflation/deflation device and a plurality of outlet ports coupled in fluid communication with a plurality of cylindrical housings. Each cylindrical housing includes a pressure chamber and a valve chamber. The valve chamber receives a piston moveable between a fully open position and a closed position and spring biased toward the fully open position. Each housing includes an outlet port coupled in fluid communication with a separate balloon of a catheter device. Each piston includes an internal flow path which enables the flow of pressurized inflation fluid from the reservoir chamber to the balloon catheter when the pressure of the inflation fluid within the balloon is below the desired cut-off pressure.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: April 18, 2000
    Assignee: AVE Connaught
    Inventor: Niall F. Duffy