| Patent application number | Description | Published |
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| 20090157002 | CATHETER HAVING COMMUNICATING LUMENS - A catheter having a plurality of longitudinal lumens for removing biological, natural and/or man-made materials from cavities, ducts, vessels, or other locations in a patient's body. The multi-lumen catheter comprises a longitudinally-extending suction lumen with suction holes through which materials pass into the lumen in response to suction forces generated by a source of negative pressure coupled to a proximal end of the lumen. A longitudinally-extending vent lumen coupled to a source of at least neutral vent pressure through, for example, an opening to ambient air at the proximal end of the lumen, and preferably, through vent holes disposed along a length of the catheter. A dividing septum between the adjacent lumens has one or more ports fluidically coupling the lumens. The ratio of the area of the suction holes and ports is such that the suction force at unobstructed suction holes is maintained below a desired maximum force for a given negative pressure when none or more of the suctions holes are obstructed. When a suction hole obstruction occurs, fluid is drawn into the suction lumen through the communication port(s). This compensating fluid flow prevents the suction forces from exceeding a predetermined maximum value during use even when one or more suction holes become obstructed. This maximum force may be set, for example, to avoid hematoma, to permit repositioning of the catheter during use, etc. thereby allowing for continuous suction. | 06-18-2009 |
| 20110208166 | CATHETER HAVING COMMUNICATING LUMENS - A catheter having a plurality of longitudinal lumens for removing biological, natural and/or man-made materials from cavities, ducts, vessels, or other locations in a patient's body. The multi-lumen catheter comprises a longitudinally-extending suction lumen with suction holes through which materials pass into the lumen in response to suction forces generated by a source of negative pressure coupled to a proximal end of the lumen. A longitudinally-extending vent lumen coupled to a source of at least neutral vent pressure through, for example, an opening to ambient air at the proximal end of the lumen, and preferably, through vent holes disposed along a length of the catheter. A dividing septum between the adjacent lumens has one or more ports fluidically coupling the lumens. The ratio of the area of the suction holes and ports is such that the suction force at unobstructed suction holes is maintained below a desired maximum force for a given negative pressure when none or more of the suctions holes are obstructed. When a suction hole obstruction occurs, fluid is drawn into the suction lumen through the communication port(s). This compensating fluid flow prevents the suction forces from exceeding a predetermined maximum value during use even when one or more suction holes become obstructed. This maximum force may be set, for example, to avoid hematoma, to permit repositioning of the catheter during use, etc. thereby allowing for continuous suction. | 08-25-2011 |
| Patent application number | Description | Published |
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| 20080306586 | Minimally Invasive System for Delivering and Securing an Annular Implant - A delivery device for an annular implant is provided, comprising an annular implant having an adjustable dimension; a plurality of movable elongated deployment members, each having a proximal end and a distal end and an annular implant deployment region therebetween; and a distal joining member for joining the distal ends of the deployment members, wherein the deployment members are expandable by an expansion means to a deployment configuration, and the implant deployment regions of the deployment members are substantially parallel in an expanded configuration. The annular implant can comprise an adjustment mechanism in communication with a releasably attached elongated adjustment tool, whereby the size or shape of the annular implant can be incrementally adjusted. | 12-11-2008 |
| 20100305609 | IMPLANTABLE PURSE STRING SUTURE TENSIONING DEVICE - An implantable purse string suture tensioning device is provided, such that a hemostatic seal can be maintained without further manual adjustment over a range of purse string circumferences, including that surrounding a minimally invasive device, or a control or guidewire, and after complete removal of objects within the purse string suture, wherein the device is sized and shaped for in-dwelling implantation in a patient. | 12-02-2010 |
| 20110093060 | Surgical Implant Devices and Methods for their Manufacture and Use - This disclosure is directed toward sealable and repositionable implant devices that are provided with one or more improvements that increase the ability of implants such as endovascular grafts to be precisely deployed or re-deployed, with better in situ accommodation to the local anatomy of the targeted recipient anatomic site, and/or with the ability for post-deployment adjustment to accommodate anatomic changes that might compromise the efficacy of the implant. | 04-21-2011 |
| 20110093062 | INFLATABLE MINIMALLY INVASIVE SYSTEM FOR DELIVERING AND SECURING AN ANNULAR IMPLANT - A delivery device for an annular implant that includes a balloon expansion mechanism and an annular implant having an adjustable dimension. The balloon expansion mechanism includes an inflation tube attached to a non-occluding balloon collar which is supported by trusses radially extending from a trocar. The annular implant further includes a flexible ring core, contiguous coiled spacers, and anchoring blocks. The flexible ring core is adjusted via a cinching mechanism. The anchoring blocks are spaced along the ring core by the contiguous coiled spacers, which keeps the distance between each pair of anchoring blocks equidistant as the ring core diameter is manipulated by the device user. The annular implant can also include gunbarrel elements housed in the trocar. Each gunbarrel element contains a gunbarrel pusher which drives an attachment element into the annular implant and annular tissue. | 04-21-2011 |
| 20110202130 | METHOD AND SYSTEM FOR LONG TERM ADJUSTMENT OF AN IMPLANTABLE DEVICE - The present invention is directed to methods and systems for adjusting an implant, such as a mitral valve ring, over the long term without having to enter a patient's body. The long term adjustment system can include a magnet, or other magnetic material, that is functionally connected to the adjustment mechanism of an adjustable implant. The long term adjustment system can be activated by placing an activating magnet near the area of the patient's body where the adjustable implant is located and positioning the activating magnet so that an attractive force is generated between the activating magnet and the magnet that is functionally connected to the adjustable implant. Due to the attractive force between the two magnets, rotation of the magnet outside the patient's body will adjust the size and/or shape of the implant. | 08-18-2011 |
| 20120239133 | Surgical Implant Devices and Methods for Their Manufacture and Use - Sealable and repositionable implant devices are provided with one or more improvements that increase the ability of implants such as endovascular grafts to be precisely deployed or re-deployed, with better in situ accommodation to the local anatomy of the targeted recipient anatomic site, and/or with the ability for post-deployment adjustment to accommodate anatomic changes that might compromise the efficacy of the implant. A surgical implant includes an implant body and a selectively adjustable assembly attached to the implant body, having adjustable elements, and operable to cause a configuration change in a portion of the implant body and, thereby, permit implantation of the implant body within an anatomic orifice to effect a seal therein under normal physiological conditions. | 09-20-2012 |
