Abstract:
A replacement heart valve assembly has a stent frame and a replacement valve. The replacement valve has a plurality of leaflets and a valve frame. The leaflets are attached to the valve frame. Further, the assembly has a plurality of suspension struts attached to the stent frame and the valve frame. The valve frame is suspended within the stent frame via the suspension struts. In some embodiments, the assembly further has a sealing member attached to the stent frame to prevent leakage around the replacement heart valve assembly.
Abstract:
A filter system, comprising an elongate filter body defining a lumen and having a proximal end and a distal end. A valve can be provided defining a lumen and having a reversibly sealable opening for unidirectional flow of a fluid through the lumen. The valve can be adjoined proximal the distal end of the elongate filter body, wherein the elongate filter body filters the unidirectional flow of the fluid passing through the lumen of the valve and the lumen of the elongate filter body.
Abstract:
Medical devices and methods for making and using medical devices are disclosed. An example medical device may be a renal nerve modulation catheter. The catheter may include an elongate catheter shaft. The catheter shaft may have a plurality of cuts formed therein define a plurality of electrode assemblies. The electrode assemblies may each include a main strut, one or more branched spacer struts extending from the main strut, and an electrode extending from the main strut and positioned radially inward from the spacer struts.
Abstract:
Medical devices and methods for making and using medical devices are disclosed. An example medical device may be a deflectable medical device that includes a catheter shaft having a distal end. An ablation electrode may be disposed at the distal end. A deflection mechanism may be coupled to the catheter shaft. The deflection mechanism may include a deflection body and a pull wire coupled to the deflection body. The deflection body may have a longitudinally-extending furrow formed therein. A flex member may be disposed adjacent to the deflection mechanism.
Abstract:
Medical devices including catheters for renal nerve ablation and/or modulation as well as methods for making and using such devices are disclosed. An example catheter may, have a proximal region and a distal region. The catheter may be configured to shift between a first straightened configuration and a second deflected configuration. The catheter may also include an ablation member coupled to the distal region and a handle coupled to the proximal region. The handle may include an actuation member for shifting the catheter between the first configuration and the second configuration. A lock may be coupled to the handle that maintains the catheter in either the first configuration or the second configuration.
Abstract:
A filter system, comprising an elongate filter body defining a lumen and having a proximal end and a distal end. A valve can be provided defining a lumen and having a reversibly sealable opening for unidirectional flow of a fluid through the lumen. The valve can be adjoined proximal the distal end of the elongate filter body, wherein the elongate filter body filters the unidirectional flow of the fluid passing through the lumen of the valve and the lumen of the elongate filter body.
Abstract:
An apparatus and method for closing an opening in a blood vessel wall is disclosed. The apparatus includes at least one member which is extended through a tissue tract formed through the epidermis and subcutaneous layer of skin and through the opening in the blood vessel. The member includes a proximal end and a distal end with the distal end being positionable proximate to the opening in the blood vessel wall. A positive electrode is positioned next to the distal end with a negative electrode being positioned next to the proximal end When the electrodes are energized an electric field is created therebetween, blood cells are attracted to the positive electrode, and a thrombus is formed at the opening in the blood vessel wall. The member may include a balloon at the distal end to temporarily occlude blood flow from the blood vessel to the tissue tract to facilitate formation of the thrombus. In addition, the shape of the balloon may be tailored to facilitate the formation of the thrombus including, but not limited to, the creation of pockets and self-supporting balloons.
Abstract:
A replacement heart valve assembly has a stent frame and a replacement valve. The replacement valve has a plurality of leaflets and a valve frame. The leaflets are attached to the valve frame. Further, the assembly has a plurality of suspension struts attached to the stent frame and the valve frame. The valve frame is suspended within the stent frame via the suspension struts. In some embodiments, the assembly further has a sealing member attached to the stent frame to prevent leakage around the replacement heart valve assembly.
Abstract:
The present disclosure relates generally to methods and devices for closing and/or sealing an opening in a vessel wall and/or an adjacent tissue tract. In one illustrative embodiment, a device is provided for delivering and deploying an anchor, plug, filament, and locking element adjacent to the opening in the vessel wall and/or tissue tract.
Abstract:
A replacement heart valve assembly has a stent frame and a replacement valve. The replacement valve has a plurality of leaflets and a valve frame. The leaflets are attached to the valve frame. Further, the assembly has a plurality of suspension struts attached to the stent frame and the valve frame. The valve frame is suspended within the stent frame via the suspension struts. In some embodiments, the assembly further has a sealing member attached to the stent frame to prevent leakage around the replacement heart valve assembly.