Patent application number | Description | Published |
20080275290 | Implantable heart assist system and method of applying same - An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and outflow conduits that are sized and configured to be implantable intravascularly through a non-primary vessel, whereby it may positioned where desired within the patient's vasculature. The system comprises a subcardiac pump that may be driven directly or electromagnetically from within or without the patient. The pump is configured to be operated continuously or in a pulsatile fashion, synchronous with the patient's heart, thereby potentially reducing the afterload of the heart. In another embodiment, the system is positioned extracorporeally, with the inflow conduit and outflow conduit applied percutaneously to a non-primary vessel for circulating blood to and from the non-primary vessel or between the non-primary vessel and another blood vessel within the patient's vasculature. | 11-06-2008 |
20090043241 | QUICK PRIMING CONNECTORS FOR BLOOD CIRCUIT - A connector system is provided for use in priming a fluid circuit. The system includes a first connector and a second connector. The first connector is configured to couple with one end of a conduit. The first connector has a gas permeable membrane, a main lumen extending from the gas permeable membrane, and a second lumen. The second lumen has a first end configured to couple with a fluid source and a second end in fluid communication with the main lumen. The second connector is configured to couple with an end of a cannula. The second connector has an end configured to be inserted through the gas permeable membrane into the first connector, whereby fluid communication can be established between the main lumen of the first connector and the cannula lumen. | 02-12-2009 |
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 |
20100234853 | DEVICE AND METHOD FOR DEFLATION AND REMOVAL OF IMPLANTABLE AND INFLATABLE DEVICES - A deflation device including a catheter having a proximal opening at a proximal end and a distal opening at a distal end; and a coring member disposed within the catheter and comprising a handle disposed near the proximal end of the catheter, a cable, and a coring tip disposed near the distal end of the catheter; wherein pressing said distal end of said catheter against said wall of said balloon creates a substantially normalized surface of said balloon relative to a coring tip and wherein the coring tip is a sharpened, hollow cylinder. A method for deflating and removing an implantable, inflatable device comprising: pressing a distal end of a catheter against the wall of an inflated balloon of an implanted device; advancing the coring tip within the catheter beyond the distal end of the catheter and into the balloon, whereby a hole adapted for advancing the catheter is created in the wall of the balloon; and advancing the catheter into the balloon. | 09-16-2010 |
20120184981 | DEFLATION AND REMOVAL OF IMPLANTABLE MEDICAL DEVICES - A deflation catheter device, comprising: a catheter tube having a proximal end and a distal end; a stylet disposed within the catheter tube; a stylet handle attached to the stylet; and a y-connector disposed near a proximal end of the catheter tube, configured to provide fluid communication from the distal end of the catheter tube and a suction port, and configured to provide access for the stylet from the proximal end of the catheter tube to the distal end of the catheter tube. | 07-19-2012 |
20120191126 | INFLATION AND DEFLATION MECHANISMS FOR INFLATABLE MEDICAL DEVICES - According to embodiments, disclosed is an inflation and deflation device for an inflatable medical device, comprising: an inflation tubing disposed between an access block and a roller configured to rotate about an axis of a roller head; wherein the inflation tubing provides fluid communication between a container and the inflatable medical device; wherein the access block and the roller are configured to restrict flow through the inflation tubing at the area of pressure between the roller and the access block; and wherein the rotation of the roller about the axis of the roller head is configured to transport a fluid within the inflation tubing. | 07-26-2012 |
20130066267 | NORMALIZATION AND STABILIZATION OF BALLOON SURFACES FOR DEFLATION - A deflation device for use in deflating an inflatable or implantable balloon device, comprising, in combination: an endoscope tube, having a distal end, a proximal end, and a lumen; a cap disposed at the distal end of the endoscope tube and having walls defining a balloon interface chamber; a coring device disposed within the lumen and configured to travel within the lumen such that a distal end of the coring device is extendable beyond the distal end of the cap; wherein the cap is configured to provide a normal surface of a balloon relative to the orientation of the coring device as the coring device is disposed near the distal end of the cap. | 03-14-2013 |
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 |
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 |