Patent application number | Description | Published |
20080223367 | Method and apparatus for treating airway obstruction - Methods and Devices for treating airway openings and breathing disorders including obstructive sleep apnea are disclosed. Structures and methods disclosed herein maintain and preserve airway openings against posterior collapse of the tongue. | 09-18-2008 |
20090112250 | Vascular Embolization With An Expansible Implant - A vascular implant formed of a compressible foam material has a compressed configuration from which it is expansible into a configuration substantially conforming to the shape and size of a vascular site to be embolized. Preferably, the implant is formed of a hydrophilic, macroporous foam material, having an initial configuration of a scaled-down model of the vascular site, from which it is compressible into the compressed configuration. The implant is made by scanning the vascular site to create a digitized scan data set; using the scan data set to create a three-dimensional digitized virtual model of the vascular site; using the virtual model to create a scaled-down physical mold of the vascular site; and using the mold to create a vascular implant in the form of a scaled-down model of the vascular site. To embolize a vascular site, the implant is compressed and passed through a microcatheter, the distal end of which has been passed into a vascular site. Upon entering the vascular site, the implant expands in situ substantially to fill the vascular site. A retention element is contained within the microcatheter and has a distal end detachably connected to the implant. A flexible, tubular deployment element is used to pass the implant and the retention element through the microcatheter, and then to separate the implant from the retention element when the implant has been passed out of the microcatheter and into the vascular site. | 04-30-2009 |
20090275974 | FILAMENTARY DEVICES FOR TREATMENT OF VASCULAR DEFECTS - Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments may include a permeable shell configured to occlude blood flow therethrough. | 11-05-2009 |
20100145371 | Embolectomy Catheters And Methods For Treating Stroke And Other Small Vessel Thromboembolic Disorders - Embolectomy catheters, rapid exchange microcatheters, systems and methods for removing clots or other obstructive matter (e.g., thrombus, thromboemboli, embolic fragments of atherosclerotic plaque, foreign objects, etc.) from blood vessels. This invention is particularly useable for percutaneous removal of thromboemboli or other obstructive matter from small blood vessels of the brain, during an evolving stroke or period of cerebral ischemia. In some embodiments, the embolectomy catheters of this invention are advanceable with or over a guidewire which has been pre-inserted through or around the clot. Also, in some embodiments, the embolectomy catheters include clot removal devices which are deployable from the catheter after the catheter has been advanced at least partially through the clot. The clot removal device may include a deployable wire nest that is designed to prevent a blood clot from passing therethrough. The delivery catheter may include telescoping inner and outer tubes, with the clot removal device being radially constrained by the outer tube. Retraction of the outer tube removes the constraint on the clot removal device and permits it to expand to its deployed configuration. An infusion guidewire is particularly useful in conjunction with the embolectomy catheter, and permits infusion of medicaments or visualization fluids distal to the clot. | 06-10-2010 |
20110005062 | Vascular Embolization With An Expansible Implant - A vascular implant formed of a compressible foam material has a compressed configuration from which it is expansible into a configuration substantially conforming to the shape and size of a vascular site to be embolized. Preferably, the implant is formed of a hydrophilic, macroporous foam material, having an initial configuration of a scaled-down model of the vascular site, from which it is compressible into the compressed configuration. The implant is made by scanning the vascular site to create a digitized scan data set; using the scan data set to create a three-dimensional digitized virtual model of the vascular site; using the virtual model to create a scaled-down physical mold of the vascular site; and using the mold to create a vascular implant in the form of a scaled-down model of the vascular site. To embolize a vascular site, the implant is compressed and passed through a microcatheter, the distal end of which has been passed into a vascular site. Upon entering the vascular site, the implant expands in situ substantially to fill the vascular site. A retention element is contained within the microcatheter and has a distal end detachably connected to the implant. A flexible, tubular deployment element is used to pass the implant and the retention element through the microcatheter, and then to separate the implant from the retention element when the implant has been passed out of the microcatheter and into the vascular site. | 01-13-2011 |
20110022149 | METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS - Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments include thin permeable membranes configured to occlude blood flow therethrough. | 01-27-2011 |
20110152993 | MULTIPLE LAYER FILAMENTARY DEVICES OR TREATMENT OF VASCULAR DEFECTS - Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments may include a permeable shell and inner structure configured to occlude blood flow therethrough. | 06-23-2011 |
20120136440 | Method And Apparatus For Treating Airway Obstruction - Methods and Devices for treating airway openings and breathing disorders including obstructive sleep apnea are disclosed. Structures and methods disclosed herein maintain and preserve airway openings against posterior collapse of the tongue. | 05-31-2012 |
20120165919 | METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS - Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments include thin permeable membranes configured to occlude blood flow therethrough. | 06-28-2012 |
20120197283 | MULTIPLE LAYER FILAMENTARY DEVICES FOR TREATMENT OF VASCULAR DEFECTS - Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments may include a permeable shell and inner structure configured to occlude blood flow therethrough. | 08-02-2012 |
20130204351 | Aneurysm Graft Devices And Methods - The present invention provides methods and apparatus for the endoluminal positioning of an intraluminal prosthesis at a target location within a body lumen. The device may comprise a porous, multi-layer prosthesis that can include several different tubular mesh components such as an everted tubular component, an tubular component that expands to various different sizes, a bifurcated tubular component, and a tubular component with an undulating expanded shape, among others. Various components can have different densities or pore sizes and can be overlaid on each other to selectively block different regions of a vessel. | 08-08-2013 |
20130245667 | FILAMENTARY DEVICES AND TREATMENT OF VASCULAR DEFECTS - Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments may include a permeable shell configured to occlude blood flow therethrough. | 09-19-2013 |
20130274862 | METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS - An expandable support structure and methods of use for treatment of a patient's cerebral aneurysm are described. The support structure includes a plurality of elongate support members each having first and second ends that are both gathered at the first end of the support structure. Each elongate support member starts at the first end of the support structure, extends to an apex at the second end of the support structure, and extends back to the first end of the support structure. The support structure has a low profile, radially constrained state having a low profile suitable for delivery from a microcatheter. The support structure also has an expanded relaxed state that defines a substantially globular shape. In the expanded relaxed state, the apices of the elongate support members are arranged to define an open distal end. | 10-17-2013 |
20130274863 | METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS - An expandable support structure and methods of use for treatment of a patient's cerebral aneurysm are described. The support structure includes a plurality of elongate support members each having first and second ends that are gathered at the first end of the support structure. Each elongate support member starts at the first end of the support structure, extends to an apex at the second end of the support structure, and extends back to the first end of the support structure. The support structure has a low profile, radially constrained state with an elongated tubular configuration having a low profile suitable for delivery from a microcatheter. The support structure also has an expanded relaxed state that defines a substantially globular shape. | 10-17-2013 |
20130274866 | METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS - An expandable support structure and methods of use for treatment of a patient's cerebral aneurysm are described. The support structure includes a fixed diameter ring and a plurality of elongate support members that are everted. The ring is secured to the plurality of elongate support members at a first end of the support structure. The support structure has a low profile, radially constrained state with an elongated tubular configuration having a low profile suitable for delivery from a microcatheter. The support structure also has an expanded relaxed state that defines a substantially globular hollow shape. | 10-17-2013 |
20130274868 | METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS - Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments include thin permeable membranes configured to occlude blood flow therethrough. | 10-17-2013 |
20140052233 | METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS - Methods for treating a cerebral aneurysm are described. The method includes providing an expandable wire body support structure having a low profile radially constrained state, an expanded relaxed state with a substantially spherical or globular configuration having a smooth outer surface, and a porous permeable layer comprising a braided wire occlusive mesh disposed over at least a portion of the expandable wire body support structure at a first end, which is configured to cover an aneurysm opening. The support structure is advanced in the low profile radially constrained state within a microcatheter to a region of interest within a cerebral artery. The support structure is then deployed within the cerebral aneurysm, and the support structure expands to the expanded relaxed state within the cerebral aneurysm. | 02-20-2014 |
20140135803 | Embolectomy Catheters And Methods For Treating Stroke And Other Small Vessel Thromboembolic Disorders - Embolectomy catheters, rapid exchange microcatheters, systems and methods for removing clots or other obstructive matter (e.g., thrombus, thromboemboli, embolic fragments of atherosclerotic plaque, foreign objects, etc.) from blood vessels. This invention is particularly useable for percutaneous removal of thromboemboli or other obstructive matter from small blood vessels of the brain, during an evolving stroke or period of cerebral ischemia. In some embodiments, the embolectomy catheters of this invention are advanceable with or over a guidewire which has been pre-inserted through or around the clot. Also, in some embodiments, the embolectomy catheters include clot removal devices which are deployable from the catheter after the catheter has been advanced at least partially through the clot. The clot removal device may include a deployable wire nest that is designed to prevent a blood clot from passing therethrough. The delivery catheter may include telescoping inner and outer tubes, with the clot removal device being radially constrained by the outer tube. Retraction of the outer tube removes the constraint on the clot removal device and permits it to expand to its deployed configuration. An infusion guidewire is particularly useful in conjunction with the embolectomy catheter, and permits infusion of medicaments or visualization fluids distal to the clot. | 05-15-2014 |
20140155908 | Methods And Apparatus For Treating Embolism - A method and apparatus for treating a clot in the blood vessel of a patient, and particularly the treatment of a pulmonary embolism is disclosed. The treatment includes restoring flow through the clot followed by clot removal, either partially or substantially completely. The clot treatment device is expandable into the blood vessel and may contain radial extensions that assist in restoring flow as well as in removing clot material. | 06-05-2014 |
20140257245 | Embolectomy Catheters And Methods For Treating Stroke And Other Small Vessel Thromboembolic Disorders - Embolectomy catheters, rapid exchange microcatheters, systems and methods for removing clots or other obstructive matter (e.g., thrombus, thromboemboli, embolic fragments of atherosclerotic plaque, foreign objects, etc.) from blood vessels. This invention is particularly useable for percutaneous removal of thromboemboli or other obstructive matter from small blood vessels of the brain, during an evolving stroke or period of cerebral ischemia. In some embodiments, the embolectomy catheters of this invention are advanceable with or over a guidewire which has been pre-inserted through or around the clot. Also, in some embodiments, the embolectomy catheters include clot removal devices which are deployable from the catheter after the catheter has been advanced at least partially through the clot. The clot removal device may include a deployable wire nest that is designed to prevent a blood clot from passing therethrough. The delivery catheter may include telescoping inner and outer tubes, with the clot removal device being radially constrained by the outer tube. Retraction of the outer tube removes the constraint on the clot removal device and permits it to expand to its deployed configuration. An infusion guidewire is particularly useful in conjunction with the embolectomy catheter, and permits infusion of medicaments or visualization fluids distal to the clot. | 09-11-2014 |
20140324091 | METHODS AND APPARATUS FOR TREATING EMBOLISM - A method and apparatus for treating a clot in the blood vessel of a patient, and particularly the treatment of a pulmonary embolism is disclosed. The treatment includes restoring flow through the clot followed by clot removal, either partially or substantially completely. The clot treatment device is expandable into the blood vessel and may contain radial extensions that assist in restoring flow as well as in removing clot material. | 10-30-2014 |
20150018859 | METHODS AND APPARATUS FOR TREATING PULMONARY EMBOLISM - A device and method for intravascular treatment of an embolism, and particularly a pulmonary embolism, is disclosed herein. One aspect of the present technology, for example, is directed toward a clot treatment device that includes a support member configured to extend through a delivery catheter and a plurality of clot engagement members positioned about the circumference of a distal portion of the support member. The individual clot engagement members can have a first portion and a second portion extending from the first portion, and the first portions can have a proximal region attached to the support member. In the deployed state, the individual second portions can extend from the distal region of one of the first portions and project radially outwardly relative to the support member in a curve that has a proximally extending section which defines a proximally facing concave portion. | 01-15-2015 |
20150018860 | METHODS AND APPARATUS FOR TREATING SMALL VESSEL THROMBOEMBOLISMS - A device and method for intravascular treatment of an embolism, and particularly an embolism within a small vessel, is disclosed herein. One aspect of the present technology, for example, is directed toward a clot treatment device that includes a support member configured to extend through a delivery catheter and a plurality of clot engagement members positioned about the circumference of a distal portion of the support member. The individual clot engagement members can have a first portion and a second portion extending from the first portion, and the first portions can have a proximal region attached to the support member. In the deployed state, the individual second portions can extend from the distal region of one of the first portions and project radially outwardly relative to the support member in a curve that has a proximally extending section which defines a proximally facing concave portion. | 01-15-2015 |