Embodiments of the present disclosure are directed to stents, valved-stents, and associated methods and systems for their delivery via minimally-invasive surgery.

A stent delivery system includes a stent; a pusher catheter disposed at a proximal-end side thereof; and a collet chuck disposed at the proximal-end side of the pusher catheter. The collet chuck includes a collet disposed along an outer circumference of a guide catheter; and a chuck nut provided to be relatively advanceable and retractable with respect to the collet and into which the guide catheter is insertable, and an inner circumferential surface of the chuck nut facing a center axis of the guide catheter includes a first region tightens the collet to make the collet to approach the center axis as coming into contact with the collet while approaching the collet; and a second region being at an opposite side of the collet with respect to the first region for making an approaching amount of the collet to be smaller than that in the first region.

There is provided a system for cardiac electromagnetic/magnetic catheterization for diagnosing and treating blood vessels of a patient. The system having at least one electromagnetic intraluminal capsule able to force its way through a narrowing blood vessel, the capsule carrying a camera allowing visualization of blood vessels of a patient. There is a portable electromagnetic tip, where the tip pulls the electromagnetic capsule by electromagnetic force, and when the magnetic tip moves along a body of a patient and pulls the intraluminal electromagnetic capsule along with it towards a narrowing blood vessel visualized by the camera, so that the capsule then treats the narrowing site and clears the blood vessel from coronary plaque. In addition working capsule can replace diseased valve in any cardiac position for either temporary or permanent needs.

A stent with a common connection interface, and a method and platform used to create a stent with a common connection interface is described. A common connection interface used to connect a stent to a pusher is described.

An intravascular delivery device is disclosed comprising a delivery wire having a proximal and a distal end and an interior lumen extending there between and wherein said distal end comprises a connection interface adapted to matingly interlock with a proximal end portion of a medical implantable device, wherein said delivery device comprises a locking unit arranged to secure said connection interface in a locking position in which said medical implant is pivotably locked before a controlled release.

Features for a restraint to facilitate delivery and deployment of an implantable cardiac device are described. The restraint may include a series of circumferential engagements for securing inwardly corresponding portions of the implant. The restraint may be located inside the implant and provide a radially inward force on the implant. The restraint may include a center shaft having a series of grooves configured to cooperate with corresponding splines of the implant. Distal or proximal advance of the restraint disengages the restraint from the implant. The implant may include a tubular frame configured to contract and be secured by the restraint in a contracted configuration and to expand upon disengagement from the restraint. The restraint may provide for a smaller overall cross-sectional profile of a transcatheter delivery system, for instance by negating the need for a distal delivery sheath.

A delivery system for delivering an endovascular graft within a blood vessel. The delivery system includes a tip assembly including a tip and a sleeve having a proximal end. The delivery system includes a tip capture mechanism. The tip assembly is configured to move axially relative to the tip capture mechanism and between a delivery position and a release position. The tip capture mechanism includes a landing zone. The delivery system includes a travel limiter configured to align the proximal end with the landing zone when the tip assembly is in the release position to facilitate removal of the delivery system from the blood vessel.

A stent configured for implantation in a body lumen, includes: a tubular structure having a first end, a second end, and a tubular body, the tubular body comprising a plurality of elongate portions, the first end of the tubular structure having a plurality of crown elements; and a plurality of tabs coupled to the first end of the tubular structure; wherein the elongate portions comprise a first zigzag portion forming a first ring element, the first ring element having a first ring end, and a second ring end opposite from the first ring end, wherein the first ring end of the first ring element has a first set of peaks, and wherein the second ring end of the first ring element has a second set of peaks; and wherein the peaks in the first set are flat or are rectilinear.

An intravascular device delivery system includes a distal end cap to connect an elongated member of the intravascular device delivery system to an intravascular device. The distal end cap includes at least one connection member radially movable relative to the distal end cap that is configured to engage with a complimentary recess in the intravascular device.

A system for delivering a vascular implant into a body lumen including a vascular implant having a first engagement portion at a proximal portion and an elongated delivery member having a second engagement portion at a distal portion releasably engageable with the first engagement portion. An elongated member extends through the delivery member wherein in the extended position the elongated member extends into at least a portion of the implant to prevent release of the implant from the delivery member and in the retracted position the elongated member enables release of the implant from the delivery member.