Abstract:
A comprehensive multi-functional device platform that can be variably configured by clinician operators for patient-specific anatomies and clinical situations for treating complex and total occlusions is provided. This device platform enables physicians of any skill level to effectively treat the most challenging and complex lesions/occlusions more conveniently in less time. The Functionally Integratable Catheter System ("FICS System") represents a system of "functional units" that can be configured together to operate synergistically, and comprises at least four main "functional units," including: (a) FICS Support Catheter (110); (b) FICS Dilator (130); (c) FICS PTA Catheter (140); and (d) FICS Lock-Grip Handle (120). Each "functional unit" can be provided in a pre-assembled form by the manufacturer, intended to be configured into variable combinations by clinician operators.
Abstract:
Balloon catheters that include a balloon and an elastomeric sheath, each having a surface with a therapeutic agent disposed thereon, along with methods of making and methods of using the disclosed balloon catheters.
Abstract:
A balloon catheter has a retractable sheath that can quickly and easily adjust the length of the inflated portion of the balloon and a locking mechanism for selectively retaining the sheath in the desired position for use. The balloon catheter assembly includes an inner member and an outer member that is disposed about the inner member. The outer member includes one or more inflatable balloons. A sheath is disposed about the outer member for movement relative to the balloon so as to selectively expose some or all of the balloon for inflation. Lastly, the balloon catheter assembly includes a clamp for selectively securing the sheath at a desired position relative to the balloon.
Abstract:
A balloon catheter has a retractable sheath that can quickly and easily adjust the length of the inflated portion of the balloon and a locking mechanism for selectively retaining the sheath in the desired position for use. The balloon catheter assembly includes an inner member and an outer member that is disposed about the inner member. The outer member includes one or more inflatable balloons. A sheath is disposed about the outer member for movement relative to the balloon so as to selectively expose some or all of the balloon for inflation. Lastly, the balloon catheter assembly includes a clamp for selectively securing the sheath at a desired position relative to the balloon.
Abstract:
Apparatus and methods are provided for delivering fluid into a body lumen during a medical procedure. A distal end of an apparatus may be introduced into a body lumen, and a valve on the distal end may be opened to deliver fluid through a first lumen into the body lumen, e.g., contrast and/or other diagnostic or therapeutic agents. The valve may be closed, and a procedure may be performed within the body lumen, e.g., using a treatment element carried on the distal end. For example, the treatment element may include a balloon that may be inflated when fluid is delivered through the first lumen with the valve closed. Optionally, a prosthesis, energy source, drug platform, and the like may be carried by the balloon for treating the body lumen. In various embodiments, the valve may be located proximal or distal to the treatment element.
Abstract:
Adjustable balloon catheter (100) including an inner tubular member (110) that has an inflation lumen (130) defined therein. An expandable member (140) is coupled to the distal end portion of the inner tubular member and has an inner chamber in fluid communication with the inflation lumen. The expandable member is transitionable between a deflated configuration and an inflated configuration. The expandable member defines has a non - cylindrical shape along at least a portion of a working length thereof when in the inflated configuration. An outer tubular member (120) is movable relative to the inner tubular member, the outer tubular member includes a distal end. The outer tubular member is moveable between an extended position disposed over the expandable member and a retracted position proximal to the extended position. The outer tubular member is selectively positioned between the extended position and the retracted position to define an exposed length of the working length of the expandable member.
Abstract:
An apparatus is presented for use with a biologically- compatible- fluid pressure source. The apparatus comprises an elongated carrier (304) defining a fluid passagewayand adapted to be inserted through a proximal opening of a body lumen having a main axis and certain diameter; an inflatable balloon assembly (302) having an inflatable part self - def ormable between its substantially circular geometric state (321) and multiple elongated geometry states (322) in which cross sectional dimensions of the inflatable balloon part are different in accordance with the diameter of the lumen, and being in fluid communication with said fluid passageway, the cross sectional dimension of the substantially circular geometric state being equal to or greater than said diameter of said body lumen; and at least one sleeve (306) extending from at least one end respectively of said inflatable part of the balloon assembly along a central axis (318) of said inflatable balloon part, said at least one sleeve being by its one end is rigidly coupled to the respective end of the balloon part and having one of the following configurations: (a) being by its other end (310) fixed to the carrier at a certain location and being foldable and extendable in accordance with longitudinal deformation of the inflatable balloon part, and (b) having a fixed length and being by its other end slidable along the carrier in accordance with longitudinal deformation of the inflatable balloon part. Deformation of the inflatable part of the balloon maintains the balloon assembly orientation such that the carrier passing through the balloon assembly substantially coincides with said main axis of said lumen.
Abstract:
Apparatus for retracting a balloon back into a delivery sheath following a medical procedure using the balloon. A handle on the device includes a balloon folding mechanism coupled to a proximal end of a guide wire shaft so that actuating the balloon folding mechanism causes rotation of the guide wire shaft within a catheter body. A distal end of the balloon is attached to a distal end of the guide wire shaft, which extends beyond the distal end of the catheter, and a proximal end of the balloon is attached to the distal end of the catheter so that actuating the folding mechanism causes the balloon to wrap around the guide wire shaft. The folding mechanism may also be configured for elongating the balloon. Rotating, or rotating and elongating, the deflated balloon results in a balloon with a smaller profile that may easily be retracted into a delivery sheath.
Abstract:
Described herein are low-profile balloon catheters (including PTA balloon catheters), catheter assemblies, and methods of using these catheters. The balloon catheters may include an inflatable member forming an inflatable region at the distal end of the balloon catheter, the inflatable member having a first end fixed to the distal end of the catheter body and a second end coupled to a movable member that is slidably disposed about the catheter body. The movable member is arranged to move toward the distal end of the catheter body upon inflation of the inflatable member. The inflatable region may therefore be held coaxially against the balloon catheter body when the balloon is un-inflated, reducing the overall diameter of the catheter without detrimentally affecting the expansion properties of the balloon.