Patent application number | Description | Published |
20080319415 | Balloon Angioplasty Device with Distal Protection Capability - A balloon-angioplasty device for dilating a. region of a vessel of a patient which has been at least partially occluded by the presence of a stenotic lesion in the vessel is disclosed. The device comprises an elongate catheter shaft having an inflatable element located around the catheter shaft proximal to its distal end, the inflatable element comprising a dilatation balloon and a membrane which extends in a longitudinal direction around the dilatation balloon and has at least one flushing fluid opening located at or near its distal end. At least a portion of the flushing fluid that has entered the vessel through the or each flushing fluid opening (s) in the membrane is forced to flow in a retrograde direction between the treated stenotic lesion and the membrane. | 12-25-2008 |
20090018564 | Rotational Device with Eccentric Abrasive Element and Method of Use - A rotational device for removing an occlusion from inside a tubular structure, the device comprising a drive shaft ( | 01-15-2009 |
20090069829 | Rotational Atherectomy Device with Distal Protection Capability and Method of Use - A rotational device for removing a stenotic lesion from within a vessel of a patient is disclosed. The device comprises a flexible hollow drive shaft having a distal end insertable into the vessel and an abrasive element located on the drive shaft proximal to the distal end of the drive shaft to abrade a stenotic lesion when the drive shaft rotates. The hollow drive shaft defines a lumen for fluid supplied into the drive shaft to flow in an antegrade direction along the lumen and into the vessel from the drive shaft distal to the abrasive element so that the fluid entering the vessel flows in a retrograde direction over the abrasive element and die drive shaft to entrain debris abraded by the abrasive element for removal of said debris from the patient. | 03-12-2009 |
20090182359 | Rotational Atherectomy Device And Method Of Use - A rotational device for removing an occlusion from inside a tubular structure, the device comprising a flexible drive shaft for insertion into a tubular structure and an abrasive element on the drive shaft to abrade an occlusion when the drive shaft rotates. The device includes a solid support element on the drive shaft configured so that, when the device is being used to remove an occlusion from an inner surface of a curved section of the tubular structure, the abrasive element is biased toward the inner surface by the solid support element. | 07-16-2009 |
20090312777 | ATHERECTOMY DEVICE SUPPORTED BY FLUID BEARINGS - A rotational atherectomy device for removing a stenotic tissue ( | 12-17-2009 |
20090318942 | ROTATIONAL ATHERECTOMY DEVICE WITH FLUID INFLATABLE SUPPORT ELEMENTS AND TORQUE TRANSMITTING MEMBRANE - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having a fluid impermeable wall defining a lumen of the drive shaft and, an abrasive element mounted to a distal end portion of the drive shaft proximal to and spaced away from a distal support element formed at a distal end of the drive shaft. The distal support element is inflatable by pressurized fluid which flows in an antegrade direction through said lumen of the drive shaft and is least partially re-directed into the distal fluid inflatable support element. The distal fluid inflatable support element has an outer wall comprising an outflow opening located such that said outflow opening faces an inner surface of a treated vessel during rotation of the drive shaft so that a flow of fluid through said outflow opening forms a layer of fluid between the outer wall of the rotating fluid inflated distal support element and a wall of the treated vessel to form a fluid bearing between the outer wall of the rotating fluid inflated distal support element and the wall of the treated vessel. The fluid impermeable drive shaft comprises at least one torque transmitting coil and at least one fluid impermeable membrane which extends beyond a distal end of the torque transmitting coil and conveys torque to the abrasive element mounted to the drive shaft distal to and spaced away from the distal end of the torque transmitting coil. | 12-24-2009 |
20090326568 | ROTATIONAL ATHERECTOMY DEVICE WITH FLUID INFLATABLE SUPPORT ELEMENTS SUPPORTED BY FLUID BEARINGS - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having an open distal end. The drive shaft comprising a fluid impermeable wall, an abrasive element mounted to the drive shaft proximal to and spaced away from its distal end, the fluid impermeable wall being formed from a torque transmitting coil and at least one fluid impermeable membrane which define a lumen for the antegrade flow of pressurized fluid through the drive shaft and into a distal fluid inflatable support element to inflate said fluid inflatable support element. The distal fluid inflatable support element is located at the distal end of the drive shaft and has an outer wall comprising an outflow opening located such that said outflow opening faces an inner surface of a treated vessel during rotation of the drive shaft so that a flow of fluid out of said opening forms a layer of fluid between the outer wall of the fluid inflatable distal support element and a wall of the treated vessel. The layer of fluid forming a fluid bearing between the outer wall of the rotating fluid inflated distal support element and the wall of the treated vessel. | 12-31-2009 |
20100010522 | ROTATIONAL ATHERECTOMY DEVICE WITH FLUID INFLATABLE SUPPORT ELEMENTS AND TWO TORQUE TRANSMITTING COILS - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having a fluid impermeable wall defining a fluid impermeable lumen of the drive shaft and, an abrasive element mounted to a distal end portion of the drive shaft proximal to and spaced away from a distal support element formed at a distal end of the drive shaft, the distal support element being inflatable by pressurized fluid which flows in an antegrade direction through said lumen of the drive shaft and is at least partially re-directed into the distal fluid inflatable support element. The distal fluid inflatable support element has an outer wall comprising an outflow opening located such that said outflow opening faces an inner surface of a treated vessel during rotation of the drive shaft so that a flow of fluid through said outflow opening forms a layer of fluid between the outer wall of the rotating fluid inflated distal support element and a wall of the treated vessel to form a fluid bearing between the outer wall of the rotating fluid inflated distal support element and the wall of the treated vessel, the drive shaft being comprised of at least one fluid impermeable membrane and at least two torque transmitting coils, one of said coils extending distally beyond the distal end of the other coil and conveying torque to the abrasive element mounted to the drive shaft distal to and spaced away from a portion of the drive shaft formed from the fluid impermeable membrane and said torque transmitting coils. | 01-14-2010 |
20100049226 | Rotational Atherectomy Device With Fluid Inflatable Support Elements And Distal Protection Capability - A rotational atherectomy device for abrading a stenotic lesion from a vessel of a patient comprises a flexible drive shaft ( | 02-25-2010 |
20110009888 | ROTATIONAL ATHERECTOMY SYSTEM WITH ENHANCED DISTAL PROTECTION CAPABILITY AND METHOD OF USE - An atherectomy system for removing a stenotic lesion from within a vessel of a patient is disclosed. The system comprising an atherectomy device for reducing the lesion and a separate elongate drainage catheter for evacuating from the treated vessel embolic particles released into the vessel from the stenotic lesion during its reduction by the atherectomy device during an atherectomy procedure. The atherectomy device and the separate elongate drainage catheter are each configured for introduction into the patent's vasculature though separate openings in at least one peripheral artery of the patient. | 01-13-2011 |
20110054332 | Blood Pressure Measuring Cuff - An inflatable cuff comprising an ak inflatable bladder and a strap member which forms a sleeve configured to extend around an arm of a person is disclosed. The sleeve shaped strap member has a waist portion which carries the bladder and a pair of longitudinally extending edges. The longitudinally extending edges of the waist portion are attached to complimentary interlocking halves of a zip fastener to enable the longitudinally extending edges to be zipped together to reduce the circumference of the waist portion of the sleeve and secure the cuff in position around a person's arm whose blood pressure is to be measured. | 03-03-2011 |
20120035633 | ROTATIONAL ATHERECTOMY DEVICE WITH ECCENTRIC ABRASIVE ELEMENT AND METHOD OF USE - A rotational atherectomy device for removing a stenotic tissue from the iliac artery of a patient. The device comprises a flexible, rotatable drive shaft having an elongated proximal portion, an elongated distal portion. An abrasive element is mounted to the drive shaft between the elongated proximal and distal portions of the drive shaft and between and spaced away from a pair of counterweights which are mounted to said elongated portions of the drive shaft. The eccentric abrasive element and the counterweights are configured for rapid rotation together with the drive shaft, the drive shaft is configured to extend throughout an entire length of the iliac artery to be treated. One elongated portion of the drive shaft extends out of the patient through a first access opening located in a femoral artery which is ipsilateral to the treated artery. Another elongated portion of the drive shaft extending through a second access opening located in another peripheral artery of the patient. A method of treating an iliac artery of a patient using such a rotational atherectomy device. | 02-09-2012 |
20120109170 | ROTATIONAL ATHERECTOMY DEVICE WITH DISTAL EMBOLIC PROTECTION - A rotational atherectomy device for removing a stenotic tissue ( | 05-03-2012 |
20120116431 | Rotational Atherectomy Device with Distal Protection Capability and Method of Use - A rotational device for removing a stenotic lesion from within a vessel of a patient is disclosed. The device comprises a flexible hollow drive shaft having a distal end insertable into the vessel and an abrasive element located on the drive shaft proximal to the distal end of the drive shaft to abrade a stenotic lesion when the drive shaft rotates. The hollow drive shaft defines a lumen for fluid supplied into the drive shaft to flow in an antegrade direction along the lumen and into the vessel from the drive shaft distal to the abrasive element so that the fluid entering the vessel flows in a retrograde direction over the abrasive element and the drive shaft to entrain debris abraded by the abrasive element for removal of said debris from the patient. | 05-10-2012 |
20120150207 | ROTATIONAL DEVICE WITH ECCENTRIC ABRASIVE ELEMENT AND METHOD OF USE - A rotational device for removing an occlusion from inside a tubular structure, the device comprising a drive shaft for insertion over a guidewire into a tubular structure and an abrasive element on the drive shaft having its centre of mass offset from a longitudinal axis of the drive shaft. A solid counterweight is disposed on the drive shaft spaced from the abrasive element and having its centre of mass offset from the longitudinal axis of the drive shaft so that the abrasive element moves in an orbital path around said axis to abrade an occlusion from inside the tubular structure when the drive shaft rotates around the guidewire. | 06-14-2012 |
20120165846 | Rotational Device with Inflatable Support Elements and Torque Transmitting Membrane - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having a fluid impermeable wall defining a lumen of the drive shaft and, an abrasive element mounted to a distal end portion of the drive shaft proximal to and spaced away from a distal support element formed at a distal end of the drive shaft. The distal support element is inflatable by pressurized fluid which flows in an antegrade direction through said lumen of the drive shaft and is least partially re-directed into the distal fluid inflatable support element. The distal fluid inflatable support element has an outer wall comprising an outflow opening. | 06-28-2012 |
20120165847 | Rotational Atherectomy Device with Fluid Inflatable Support Elements Supported by Fluid Bearings - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having an open distal end. The drive shaft comprising a fluid impermeable wall, an abrasive element mounted to the drive shaft proximal to and spaced away from its distal end, the fluid impermeable wall being formed from a torque transmitting coil and at least one fluid impermeable membrane which define a lumen for the antegrade flow of pressurized fluid through the drive shaft and into a distal fluid inflatable support element to inflate said fluid inflatable support element. The distal fluid inflatable support element is located at the distal end of the drive shaft and has an outer wall comprising an outflow opening. | 06-28-2012 |
20120172903 | Rotational Atherectomy Device with Fluid Inflatable Support Elements and Two Torque Transmitting Coils - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having a fluid impermeable wall defining a fluid impermeable lumen of the drive shaft and, an abrasive element mounted to a distal end portion of the drive shaft proximal to and spaced away from a distal support element formed at a distal end of the drive shaft, the distal support element being inflatable by pressurized fluid which flows in an antegrade direction through said lumen of the drive shaft and is at least partially re-directed into the distal fluid inflatable support element. | 07-05-2012 |
20120179179 | Rotational Atherectomy Device with Fluid Inflatable Support Elements and Distal Protection Capability - A rotational atherectomy device for abrading a stenotic lesion from a vessel of a patient comprises a flexible drive shaft which extends towards a distal end of the device, a distal fluid inflatable support element located at a distal end of the drive shaft and an abrasive element mounted to the drive shaft proximal to and spaced away from the distal fluid inflatable support element. Both the abrasive element and the distal fluid inflatable support element are rotatable together with the drive shaft. | 07-12-2012 |
20120191113 | ATHERECTOMY DEVICE SUPPORTED BY FLUID BEARINGS - A rotational atherectomy device for removing a stenotic tissue ( | 07-26-2012 |
20130178881 | Rotational Atherectomy Device with Distal Protection Capability and Method of Use - A rotational device for removing a stenotic lesion from within a vessel of a patient is disclosed. The device comprises a flexible hollow drive shaft having a distal end insertable into the vessel and an abrasive element located on the drive shaft proximal to the distal end of the drive shaft to abrade a stenotic lesion when the drive shaft rotates. The hollow drive shaft defines a lumen for fluid supplied into the drive shaft to flow in an antegrade direction along the lumen and into the vessel from the drive shaft distal to the abrasive element so that the fluid entering the vessel flows in a retrograde direction over the abrasive element and the drive shaft to entrain debris abraded by the abrasive element for removal of said debris from the patient. | 07-11-2013 |
20130204280 | Rotational Atherectomy Device with Fluid Inflatable Support Elements and Distal Protection Capability - A rotational atherectomy device for abrading a stenotic lesion from a vessel of a patient comprises a flexible drive shaft which extends towards a distal end of the device, a distal fluid inflatable support element located at a distal end of the drive shaft and an abrasive element mounted to the drive shaft proximal to and spaced away from the distal fluid inflatable support element. Both the abrasive element and the distal fluid inflatable support element are rotatable together with the drive shaft. | 08-08-2013 |
20130245654 | ATHERECTOMY DEVICE SUPPORTED BY FLUID BEARINGS - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient comprises a flexible hollow drive shaft and an abrasive element mounted to the drive shaft proximal to and spaced from a solid support element mounted at the distal end of the drive shaft, the solid support element having a rounded outer surface and an outflow channel with an outflow opening in said rounded outer surface. The drive shaft comprises a torque transmitting coil and at least one fluid impermeable membrane forming a fluid impermeable lumen for the antegrade flow of fluid into the outflow channel such that, during rotation of the drive shaft, a flow of fluid out of said outflow opening forms a fluid bearing between the rotating solid support element and the wall of the treated vessel. | 09-19-2013 |
20130274773 | Rotational Atherectomy System With Enhanced Distal Protection Capability And Method Of Use - An atherectomy system for removing a stenotic lesion from within a vessel of a patient is disclosed. The system comprising an atherectomy device for reducing the lesion and a separate elongate drainage catheter for evacuating from the treated vessel embolic particles released into the vessel from the stenotic lesion during its reduction by the atherectomy device during an atherectomy procedure. The atherectomy device and the separate elongate drainage catheter are each configured for introduction into the patient's vasculature though separate openings in at least one peripheral artery of the patient. | 10-17-2013 |
20130296904 | ROTATIONAL ATHERECTOMY DEVICE WITH FLUID INFLATABLE SUPPORT ELEMENTS AND TWO TORQUE TRANSMITTING COILS - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having a fluid impermeable wall defining a fluid impermeable lumen of the drive shaft and, an abrasive element mounted to a distal end portion of the drive shaft proximal to and spaced away from a distal support element formed at a distal end of the drive shaft, the distal support element being inflatable by pressurized fluid which flows in an antegrade direction through said lumen of the drive shaft and is at least partially re-directed into the distal fluid inflatable support element. | 11-07-2013 |
20130296905 | ROTATIONAL ATHERECTOMY DEVICE WITH FLUID INFLATABLE SUPPORT ELEMENTS SUPPORTED BY FLUID BEARINGS - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having an open distal end. The drive shaft comprising a fluid impermeable wall, an abrasive element mounted to the drive shaft proximal to and spaced away from its distal end, the fluid impermeable wall being formed from a torque transmitting coil and at least one fluid impermeable membrane which define a lumen for the antegrade flow of pressurized fluid through the drive shaft and into a distal fluid inflatable support element to inflate said fluid inflatable support element. The distal fluid inflatable support element is located at the distal end of the drive shaft and has an outer wall comprising an outflow opening. | 11-07-2013 |
20130310859 | Rotational Device with Inflatable Support Elements and Torque Transmitting Membrane - A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having a fluid impermeable wall defining a lumen of the drive shaft and, an abrasive element mounted to a distal end portion of the drive shaft proximal to and spaced away from a distal support element formed at a distal end of the drive shaft. The distal support element is inflatable by pressurized fluid which flows in an antegrade direction through said lumen of the drive shaft and is least partially re-directed into the distal fluid inflatable support element. The distal fluid inflatable support element has an outer wall comprising an outflow opening. | 11-21-2013 |
20140180317 | ROTATIONAL ATHERECTOMY DEVICE WITH ECCENTRIC ABRASIVE ELEMENT AND METHOD OF USE - A rotational atherectomy device for removing a stenotic tissue from the iliac artery of a patient. The device comprises a flexible, rotatable drive shaft having an elongated proximal portion, an elongated distal portion. An abrasive element is mounted to the drive shaft between the elongated proximal and distal portions of the drive shad and between and spaced away from a pair of counterweights which are mounted to said elongated portions of the drive shaft. The eccentric abrasive element and the counterweights are configured for rapid rotation together with the drive shaft, the drive shaft is configured to extend throughout an entire length of the iliac artery to be treated. One elongated portion of the drive shaft extends out of the patient through a first access opening located in a femoral artery which is ipsilateral to the treated artery. Another elongated portion of the drive shaft extending through a second access opening located in another peripheral artery of the patient. A method of treating are iliac artery of a patient using such a rotational atherectomy device. | 06-26-2014 |
20140180318 | Rotational Atherectomy Device with Fluid Inflatable Support Elements and Distal Protection Capability - A rotational atherectomy device for abrading a stenotic lesion from a vessel of a patient comprises a flexible drive shaft ( | 06-26-2014 |
20140180319 | ROTATIONAL ATHERECTOMY DEVICE WITH DISTAL EMBOLIC PROTECTION - A rotational atherectomy device for removing a stenotic tissue ( | 06-26-2014 |