The present invention relates to a balloon-mounted stent configured such that a balloon is formed at the front end of a stent, and a metal stent is deployed to a precise stenotic region to widen the stenotic region, and the present invention provides a balloon-mounted stent deployment apparatus comprising an inner tube, a balloon connected to the outside of the inner tube, and a stent located at one side of the balloon and installed outside the inner tube, in which, when the balloon is inflated, the balloon acts as a stopper for the stent. Therefore, during stent deployment procedures, the position of the stent in a stenotic region can be determined more accurately and easily.

An apparatus and methods tissue restoration are provided. The apparatus may include a catheter shaft extending from a proximal end to a distal tip and a translucent first distal balloon positioned on a translucent distal segment of the catheter shaft inside of and concentric with a second distal balloon proximal to the distal tip in fluid communication with a drug source via a first lumen, the first distal balloon may include first and second outer surfaces, and longitudinal and circumferential channels. A first light fiber and a second light fiber each positioned in the catheter shaft and extending through the translucent distal segment. The drug source provides at least one drug to the first distal balloon via the first lumen.

A bifunctional expandable stent delivery assembly having a bifunctional expandable stent, a breakable cover, and a balloon. The bifunctional expandable stent has a balloon-expandable body portion and a self-expandable trumpet portion. The breakable cover fits over only the self-expandable trumpet portion and prevents self-expansion. The balloon is used to expand the balloon-expandable portion, which breaks the breakable cover and allows the self-expandable trumpet portion to self-expand. A method of stenting a patient using the bifunctional expandable stent delivery assembly is also provided.

Systems and devices for crimping a medical device and associated methods are disclosed herein. A crimping device configured in accordance with embodiments of the present technology can include, for example, a frame including a stationary plate, a movable member, and a plurality of blades arranged to form a channel and each including a pin that projects through a slot on the movable member and a corresponding slot on the stationary plate. The crimping device can be actuated to move the movable member relative to the stationary plate to drive the pins along paths defined by the slots to thereby drive the blades radially inward to crimp a medical device positioned within the channel.

The invention relates to a medical device delivery system comprising a catheter shaft having a proximal end and a distal end portion; an expandable member provided at the distal end portion of the shaft, the expandable member having a delivery configuration and a deployed configuration; the expandable member being folded around the catheter shaft in its delivery configuration; characterized in that a coating is disposed on at least a portion of the outer surface area of the expandable member in its delivery configuration such that the coating does not cover portions of the expandable member located inside the folds of the expandable member in its delivery configuration; and an expandable medical device is mounted on the expandable member in the delivery configuration with the coating being disposed between the expandable member and the expandable medical device.

A stent delivery system includes an elongated shaft, a balloon and a stent. The balloon is dilatable from a contracted position to an expanded position when a fluid flows into an interior of the balloon. The stent is formed by wires that are spaced apart so that at least one gap is formed between the wires. The stent is mounted on the outer surface of the balloon when the balloon is contracted. The balloon includes a protruding portion which protrudes radially outward through the gap of the stent when the stent is mounted on the balloon and the balloon is in the contracted position. A lubricant is disposed on the outer surface of the balloon at least on a part of the protruding portion of the balloon, and an other portion of the balloon covered by the stent does not have the lubricant.

A balloon catheter includes a catheter tube and an inflatable balloon. The ends of the balloon are attached to the catheter tube. The outside surface of the balloon in an uninflated state is provided with a relief structure which in an inflated state of the balloon is substantially disappeared. A method for producing such a relief structure is by winding a wire helically around the outer surface of the balloon.

A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. A sheath is placed over the crimped scaffold after crimping to reduce recoil of the crimped polymer scaffold and maintain scaffold-balloon engagement relied on to hold the scaffold to the balloon when the scaffold is being delivered to a target in a body. The sheath is removed by a health professional either by removing the sheath directly or using a tube containing the catheter.

A method of inserting a stent includes inserting a unitary, monolithic catheter assembly into a cardiac artery. The catheter assembly includes a body having a proximal end and a distal end, a distal balloon mounted on the distal end, and a proximal balloon mounted on the body, proximally of the distal balloon. A balloon expandable stent is mounted on the distal balloon. The method further includes the steps of advancing the catheter assembly to a blockage in the artery until the distal balloon and the stent both extend across the blockage; inflating the distal balloon and expanding the stent; deflating the distal balloon; advancing the catheter body distally until the proximal balloon extends within the stent; expanding the proximal balloon to post-dilate the stent; deflating the proximal balloon; and withdrawing the catheter body from the artery.

The described invention provides an endovascular stent device comprising a tubular structure comprising a circumference; wherein a flow-diverting portion of the circumference is covered by a flow-diverting material; a length (l) from a proximal end to a distal end; and an inner diameter (d); wherein the flow-diverting portion of the circumference comprises a length (l′); and the flow-diverting portion of the circumference covers at least 1% to at least 100% of the endovascular stent device. According to some embodiments, the flow-diverting material is adapted to increase blood vessel wall adherence and minimize risk of an endoleak.