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Niall Duffy
Niall Duffy, Co. Galway IE
| Patent application number | Description | Published |
|---|---|---|
| 20110071616 | Stent Including a Toggle Lock Strut - A tubular stent includes cylindrical rings disposed adjacent to each other and coupled to each other by a plurality of longitudinal segments. Each cylindrical ring includes circumferentially oriented toggle lock struts. The toggle lock struts include a first arm and a second arm coupled together at an elbow. When the stent is in a compressed configuration for delivery, the toggle lock struts are bent at the elbow such that the first arm is disposed at an angle of less than 180 degrees relative to the second arm. Upon radial expansion of the stent, the toggle lock struts are unbent to a straight configuration and permitted to relax slightly beyond the straight configuration to a locked configuration such that the angle between the first arm and the second arm changes from less than 180 degrees to more than 180 degrees. | 03-24-2011 |
| 20110264208 | Prosthetic Heart Valve Devices and Methods of Valve Repair - A mechanism for adjusting the chordae connecting the leaflets of a mitral valve to the papillary muscles in order to restore normal functioning of the mitral valve. The devices or mechanisms can correct problems associated with both prolapsed leaflets and restricted leaflets to allow the leaflets to properly coapt, thereby preventing or minimizing regurgitation. In accordance with the invention, the mechanisms or devices used for adjusting the chordae can be delivered and implanted in a minimally invasive and/or percutaneous manner, such as via transapical methods, transfermoral methods, or trans-septal methods. | 10-27-2011 |
Niall Duffy, Tuam IE
| Patent application number | Description | Published |
|---|---|---|
| 20080215018 | Method and Apparatus for Treating Stenoses at Bifurcated Regions - A bifurcated catheter includes a first catheter branch having a first distal portion and a second catheter branch having a second distal portion. The first and second distal portions are linked together for delivery to the bifurcated region. Upon delivery to the bifurcated region, the first and second distal portions are released from each other such that the first and second catheter branches may be tracked into first and second vessel branches, respectively. The first and second distal portions can be linked together by an appendage disposed on the first distal portion that is sized and shaped such that the appendage fits snugly within a distal opening of the second distal portion, a cup disposed on the first distal portion that is sized and shaped to snugly receive the second distal portion, moving pocket disposed on the first distal portion and slidable relative to the first distal portion that is sized and shaped to snugly receive the second distal portion, or a sheath coupled to the first distal portion and wrapped around the second distal portion. | 09-04-2008 |
| 20090264771 | Ultrasonic Based Characterization of Plaque in Chronic Total Occlusions - A probe for detecting at least one property of a chronic total occlusion in a lumen. The probe includes an elongated member having a distal end configured to be inserted into the lumen, and an ultrasound transducer mounted at the distal end of the elongated member. The ultrasound transducer is configured to emit an ultrasonic signal and to receive a reflected signal from the chronic total occlusion. The probe also includes a processor configured to receive the reflected signal from the ultrasound transducer and convert the reflected signal to at least one property of the chronic total occlusion. | 10-22-2009 |
| 20100010393 | Treatment of Occlusions by External High Intensity Focused Ultrasound - An apparatus for treating an occlusion in a vessel inside of a patient. The apparatus includes an external high intensity focused ultrasound transducer configured to be positioned outside of the vessel and to emit ultrasonic waves of energy to the occlusion and to detect ultrasonic waves of energy, an internal ultrasound transducer configured to be positioned inside of the vessel at a position adjacent to or inside the occlusion and to emit ultrasonic waves of energy for detection by the external high intensity focused ultrasound transducer, and a controller configured to control the ultrasonic waves of energy emitted by the external high intensity focused ultrasound transducer based on an electrocardiogram of the patient. | 01-14-2010 |
| 20100030154 | MEDICAL INSTRUMENT INSERTER - A catheter system for positioning an instrument within a body that includes a hub defining a lumen therethrough for passage of the instrument toward the body. The catheter system also includes an elongate tubular member defining a lumen therethrough. The lumen of the elongate tubular member is in communication with the lumen of the hub for further passage of the instrument toward the body. The system also includes a slitter member that is coupled to the hub. The slitter member is disposed to slit the elongate tubular member as the elongate tubular member moves relative to the hub. | 02-04-2010 |
| 20100030161 | INTEGRATED SLITTER FOR MEDICAL INSTRUMENT INSERTER - A catheter system for positioning of an instrument within a body. The catheter system includes a hub defining a lumen therethrough for passage of the instrument and an elongate tubular member defining a lumen therethrough. The lumen of the tubular member is in communication with the lumen of the hub. The system also includes a slitter member that is coupled to the hub. The slitter member is disposed to slit the tubular member. The slitter further includes a moveable member that is moveably coupled to the hub and that is coupled to the tubular member, the moveable member is operable to advance the elongate tubular member toward the slitter member as the moveable member is moved relative to the hub. The slitter member thereby slits the elongate tubular member. | 02-04-2010 |
| 20100130852 | NAVIGATION ENABLED LEAD DELIVERY CATHETER - A catheter system for positioning of a medical instrument that includes a first elongate member having a first lumen. The catheter system also includes a second elongate member that includes a second lumen that receives the medical instrument. The second elongate member is coupled directly to the first elongate member, and the second elongate member is operable to be at least partially segmented generally along a second longitudinal axis thereof to allow movement of the medical instrument outside the second lumen. The second elongate member is selectively collapsible and expandable to change a size of the second lumen. | 05-27-2010 |
| 20100185083 | NAVIGATION ENABLED LEAD DELIVERY CATHETER - A catheter system for positioning of a medical instrument includes a first elongate member having a first lumen. The system also includes a second elongate member that includes a second lumen that receives the medical instrument. The second elongate member is coupled directly to the first elongate member, and the second elongate member is cuttable to allow removal of the medical instrument from the second lumen. The second elongate member is also selectively collapsible and expandable to change a size of the second lumen. Furthermore, the system includes a navigation tool operable for allowing detection of a location of the catheter system. The navigation tool is received in the first lumen, and the second elongate member is cuttable without cutting the first elongate member and the navigation tool. | 07-22-2010 |
Niall Duffy, Galway IE
| Patent application number | Description | Published |
|---|---|---|
| 20100094397 | Method of Implanting a Transmyocardial Stent - According to an aspect of the invention there is provided a method and apparatus for delivering a medical stent to a treatment site for forming a conduit between a blood vessel and a heart chamber. The apparatus comprises a hollow cylindrical body having a proximal end and a distal end, the stent being positioned within the body; and an actuator for expelling the stent from the body to form the conduit. | 04-15-2010 |
Niall Duffy, Ballybrit IE
| Patent application number | Description | Published |
|---|---|---|
| 20090132019 | Bifurcate Stent Delivery Catheter - A bifurcate stent delivery catheter is disclosed that includes a proximal shaft and two distal shaft branches having a bifurcated stent mounted thereon, wherein one or more conventional balloon catheters may be advanced within lumens of the bifurcate catheter to deploy the bifurcated stent. Since no balloons are mounted on the bifurcate catheter, the clinician may use any combination of balloon sizes for deploying various portions of the bifurcated stent and thus custom-select appropriate balloon sizes to best treat the bifurcation. Once a conventional balloon catheter is positioned within a distal shaft branch of the bifurcate stent delivery catheter, each of the distal shaft branches of the bifurcate catheter are constructed to split or otherwise expand in a controlled manner upon expansion of the balloon catheter in order to allow the bifurcated stent to be expanded or deployed. | 05-21-2009 |
| 20090270714 | Device to Treat Chronic Total Occlusions Using Energy Imparted By External Imaging - A visualization and treatment system for treating a chronic total occlusion. The system includes an elongated member configured to be tracked to the chronic total occlusion. The elongated member has a transducer located at a distal end of the elongated member. The transducer is constructed and arranged to convert a first form of energy into a second form of energy to treat the chronic total occlusion. The system also includes an external imaging system constructed and arranged to create an image of the chronic total occlusion and to provide the first form of energy to the transducer. | 10-29-2009 |
| 20090299171 | Intraluminal Access and Imaging Device - An intraluminal access and imaging device is configured to image a path of a vessel that includes a chronic total occlusion. The device includes an elongated member having a distal end and a proximal end. The distal end is configured to pass through an inner layer of the vessel so that the elongated member may track subintimally along a side of the chronic total occlusion. The elongated member includes a radiopaque material configured to be highly visible under fluoroscopy. | 12-03-2009 |
Niall Duffy, Ballygluinin IE
| Patent application number | Description | Published |
|---|---|---|
| 20110202128 | Distal Tip Assembly for a Heart Valve Delivery Catheter - A catheter assembly according to the present invention includes a handle assembly, an introducer sheath, and a distal tip assembly. The distal tip assembly can include first and second retaining sleeves and a slotted tip with a non-traumatic tip guard positioned at the proximal end of the slotted tip. The handle assembly can include a fixed main handle and two or more rotating handles that allow a user to control the distal tip assembly of the catheter. Each control knob on the handle assembly controls a portion of the components on the distal tip of the catheter by allowing for precise manipulation of various delivery shafts. Each delivery shaft extends from the handle assembly to respective positions towards the distal end of the catheter. | 08-18-2011 |
| 20110208296 | Catheter Assembly with Valve Crimping Accessories - Catheter assemblies including a handle assembly located on the proximal end of the catheter assembly and a distal tip assembly located on the distal end of the catheter assembly. A crimping funnel is slidably positioned along the catheter. The crimping funnel includes a distal end having a first diameter and a proximal end having a second diameter smaller than the first diameter. An axial split is formed in the proximal end. A first collar is provided encompassing a portion of the proximal end. The first collar is configured to hold the axial split in the proximal end together when the first collar is at a first axial location along the proximal end, and to allow the axial split in the proximal end to open when the first collar is at a second axial location along the proximal end, such that the crimping funnel can be removed from the catheter assembly. Various methods of retaining a prosthetic valve on the catheter assembly during the crimping process are described. | 08-25-2011 |
Niall Duffy, Brooklodge IE
| Patent application number | Description | Published |
|---|---|---|
| 20120035717 | Catheter Assembly with Valve Crimping Accessories - Valve delivery catheter assemblies including components that limit trauma to the expanded prosthetic valve and body channels as the distal tip of the catheter is withdrawn through the expanded valve and thereafter from the body. In one embodiment, a catheter assembly according to the present invention includes a handle assembly, an introducer sheath, and a distal tip assembly. The handle assembly can include a fixed main handle and two or more rotating handles that allow a user to control the distal tip assembly of the catheter. A valve retaining mechanism can be included to assist in retaining the prosthetic valve prior to deployment. Each control knob on the handle assembly controls a portion of the components on the distal tip of the catheter by allowing for precise manipulation of various delivery shafts. Each delivery shaft extends from the handle assembly to respective positions towards the distal end of the catheter. | 02-09-2012 |