Medical

Systems and methods are disclosed for delivering a stent to a lumen internal to a body of a patient and for sheathing a stent just prior to an insertion procedure. One embodiment comprises a delivery device having a partially sheathed configuration, a fully sheathed delivery configuration, and a deployed configuration....

The present disclosure describes treatment of the vasculature of a patient with an expandable implant. The implant is constrained to a reduced delivery diameter for delivery within the vasculature by at least one sleeve. The implant can be constrained to other diameters, such as an intermediate diameter. The sleeves can...

Medical device delivery systems and methods for making and using medical device delivery systems are disclosed. An example medical device delivery system may include an outer sheath. An inner catheter may be disposed within the outer sheath. The inner catheter may have a distal end. An implant may be releasably...

An implantable vascular prosthesis is provided for use in a wide range of applications wherein at least first and second helical sections having alternating directions of rotation are coupled to one another. The alternating helical section includes a first and second helical portions each having a flange and having adjacent...

The present disclosure describes an assembly comprising an expandable device, a restraining member wrapped circumferentially around the device, a coupling member releasably securing the restraining member, and at least one tactile indicator located on the assembly at a desired point of partial deployment, along with a method for partially deploying...

The present invention embodies an endovascular graft having an attachment frame connection mechanism that allows placement of the main body component in vasculature in combination with limb components. Various limb component-to-main body component attachment mechanisms are provided which ensure a reliable bond while facilitating a smaller delivery profile....

This invention gives physicians in situ control to create differences in wall porosity between different areas of a stent wall. This enables a physician to customize the stent within a blood vessel to selectively block blood flow to an aneurysm with a low-porosity area of the stent wall, but allow...

The present disclosure provides a bifurcated stent for use in juxtaposition with an angiological bifurcation. The disclosure provides a bifurcated stent that includes a proximal portion adapted to be disposed within a blood vessel in juxtaposition with a bifurcation, a first distal stent portion adapted to extend across the bifurcation...

In embodiments there is described a cardiovascular tube-shaped lockable and expandable bioabsorbable scaffold having a low immunogenicity manufactured from a crystallizable bioabsorbable polymer composition or blend....

An expandable stent has larger cells located at the proximal and distal ends of the stent than in the body portion so that more of a catheter balloon can protrude into the stent cells to increase stent retention. The intravascular stent has a plurality of cylindrical rings connected by links,...

The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for an intravascular stent having a plurality of cylindrical rings connected by links. The links between adjacent rings provide axial strength when...

A system may include an endoluminal prosthesis and a guide wire. The prosthesis may include a tubular body including a graft material wall, a proximal end opening, a distal end opening, and a lumen extending longitudinally therein. The prosthesis may include first and second fenestrations in the graft material wall....

The artificial valves and methods described herein and shown in the drawings, provide for artificial valves with superior properties including fatigue resistance, biocompatibility, and ease of manufacture....

A sealable vascular system includes an endovascular implant to be delivered in a compressed or folded state to an implantation site. The endovascular implant includes a tubular implant body and a sealable circumferential collar at said tubular implant body and including a variable sealing device and a control lead traversing...

A catheter-based annuloplasty system for use in repairing a heart valve having leaflets and a valve annulus, includes a delivery catheter having a proximal end and a distal end, and an expandable stent disposed on the distal end of the catheter. An adjustable annuloplasty ring is disposed on the expandable...

A device for deploying a cardiac valve prosthesis includes a distal valve holder portion and a shaft extending towards the valve holder portion. The shaft is selectively bendable to a curved shape to vary the spatial orientation of the valve holder portion with respect to the desired implantation site....

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...

Medical device delivery systems and methods for making and using medical device delivery systems are disclosed. An example medical device delivery system may include an outer sheath. An inner catheter may be disposed within the outer sheath. The inner catheter may have a distal end. A tube extension may be...

A prosthetic heart valve implantable by catheter without surgery includes a substantially “dry” membrane or tissue material. In at least one embodiment, the tissue is folded in a dry state to form a tissue leaflet assembly that is then attached to a frame to form an implantable prosthetic heart valve....

A device for positioning a reference element during aortic valve implantation surgery. The device includes a first extension member having a proximal end and a distal end, a connection member adapted to connect the first extension member to a support, and a coupling having a first end connected to the...