Abstract:
Systems and methods employ functional instruments to close incisions and wounds using a suture knot in combination with a biocompatible material composition. The systems and methods are well suited for use, for example, at a vascular puncture site following a vascular access procedure.
Abstract:
Systems and methods employ functional instruments to close incisions and wounds using a suture knot in combination with a biocompatible material composition. The systems and methods are well suited for use, for example, at a vascular puncture site following a vascular access procedure.
Abstract:
A direct stick tear-away introducer having an elongate intraluminal medical device, comprising a proximal and a distal end. A sheath is disposed about the medical device and extends from the distal end of the medical device. A blade is bonded to a distal end of the sheath, and a weakened region on the sheath extends longitudinally from the distal end to a proximal end of the sheath. The introducer has the ability to incise a body tissue and allow insertion of a medical device housed within the introducer into the body tissue. Methods for using the devices herein are also disclosed.
Abstract:
A probe having the ability to deliver cardioplegia solution to the coronary sinus under direct visualization and to provide venous drainage from the right atrium for cardiopulmonary bypass. The probe has an elongate tubular member, including a distal end, a proximal end, and a lumen. A membrane, optionally perforated, mounted within the lumen of the tubular member partitions the lumen and is removable or penetrable by a cardioplegia catheter. The distal end comprises a toroidal balloon or a circumferential recessed vacuum manifold. A vacuum port communicates with the distal end of the tubular member or the vacuum manifold. Methods of using the cardioplegia access view probe for catheterization of the coronary sinus and for venous return as herein described are also disclosed.
Abstract:
Exemplary occlusion and molding devices and methods involve the use of an expandable balloon. Methods of sealing an aortic side branch in a patient can include advancing an occlusion device within the aorta, positioning a toroidal balloon of the occlusion device adjacent to the aortic side branch, and inflating the balloon to prevent peripheral blood flow from the aorta into the aortic side branch while a central aperture of the balloon allows descending aortic blood flow therethrough. Methods of molding a stent against an interior surface of a vessel of a patient can include advancing a molding device within the vessel, positioning a toroidal balloon of the molding device at least partially withing the stent, and inflating the balloon to exert force to the stent thus dilating the stent and molding it to the interior of the vessel while a central aperture of the balloon allows blood flow therethrough.
Abstract:
Systems and methods employ functional instruments to close incisions and wounds using a suture knot in combination with a biocompatible material composition. The systems and methods are well suited for use, for example, at a vascular puncture site following a vascular access procedure.
Abstract:
A filter device for temporary placement of a filter in an artery or vein is disclosed. The device includes an expandable filter mounted on a distal end of a catheter. The filter comprises a plurality of circumferentially adjacent porous segments that are arranged generally about the surface of a cone having an open base, and the segments are engaged to one another by means, such as a hook. The filter conforms to the interior of a vessel wall when expanded and contracts to a consistent diameter without bunching when stowed. Methods of using the filter device to entrap and remove embolic material from a vessel during endovascular procedures are also disclosed.
Abstract:
A probe having the ability to deliver cardioplegia solution to the coronary sinus under direct visualization and to provide venous drainage from the right atrium for cardiopulmonary bypass. The probe has an elongate tubular member, including a distal end, a proximal end, and a lumen. A membrane, optionally perforated, mounted within the lumen of the tubular member partitions the lumen and is removable or penetrable by a cardioplegia catheter. The distal end comprises a toroidal balloon or a circumferential recessed vacuum manifold. A vacuum port communicates with the distal end of the tubular member or the vacuum manifold. Methods of using the cardioplegia access view probe for catheterization of the coronary sinus and for venous return as herein described are also disclosed.
Abstract:
An expansion frame system for deploying medical devices in a patient's body cavity. The system typically includes an inner wire disposed within a lumen of an outer wire. Distal ends of the inner and outer wires are attached to a substantially circular frame at first and second points. During use, the outer wire is displaced relative to the inner wire, causing the circular frame to rotate about an axis perpendicular to the line defined by the first and second points. Medical devices, such as a filter, a stent, an occluder or a manometer, can be mounted on the circular frame. The diameter of the expansion frame can be varied to achieve optimal contact with the luminal wall of the body cavity. Methods of using the expansion frame system for temporary or permanent placement of a medical device is disclosed.
Abstract:
A balloon delivery system for deploying stents including a balloon catheter, and a stent fixedly positioned on the balloon portion of the balloon catheter by at least one protrusion such as annular cuff formed around the balloon. The balloon can include two or more continuous or discontinuous cuffs formed along the balloon which maintain one or more stents in position on the balloon. The protrusion can be created from excess material of the balloon which is configured in a desired fashion around the balloon to form the protrusion. The protrusion improves the fixation of the stent on the balloon catheter until the balloon is inflated to deploy the stent within a body lumen. The protrusion restrains the movement of the stent without a significant change in the overall profile of the balloon delivery system. The protrusion or protrusions can be provided as a series of circumferentially spaced-apart projections, a C-shaped annular cuff, a continuous annular cuff or two or more axially spaced-apart projections or cuffs.