An illustrative stent may include a tubular member defined by at least one knitted filament forming a plurality of twisted knit stitches with rungs extending circumferentially between radially adjacent twisted knit stitches, where each twisted knit stitch is interconnected with a longitudinally adjacent twisted knit stitch forming a series of linked stitches. The tubular member may be implanted to connect two spaced apart anatomical locations within the digestive tract, moving between a relaxed configuration and an elongated configuration. The tubular member has a first longitudinal length in the relaxed configuration and a second longitudinal length in the elongated configuration, and the first longitudinal length is less than the second longitudinal length.

The present invention relates to a joining member for an anastomosis system for realizing anastomosis between first and second hollow structures, such as end-to-side anastomosis. The joining member is annular and is adapted for joining the first and second hollow structures. The joining member includes a plurality of interconnected loops forming the annular body and a plurality of joining elements for joining the hollow structures connected to the annular body at locations where adjacent loops are interconnected to each other, and wherein the loops are configured to permit radial expansion of said annular body to expand said joining member from a first position to a second position having a second, larger diameter than the first position.

An assembly includes an implant body and a delivery apparatus. The implant body includes a lattice structure, an adjustment member, and a control device. The lattice structure is circumferentially expandable and contractible. The adjustment member and the control device are coupled to the lattice structure. Actuating the adjustment member results in circumferential expansion or contraction of the lattice structure. The delivery apparatus includes a rotatable adjustment tool and a locking mechanism comprising a controllable catch coupled to an end portion of the rotatable adjustment tool. The rotatable adjustment tool is configured to actuate the adjustment member of the implant body upon rotation of the rotatable adjustment tool. The controllable catch of the locking mechanism is configured to selectively couple the rotatable adjustment tool to the adjustment member of the implant body.

Methods and devices that prevent stasis in the LAA by either increasing the flow through the LAA or by closing off or sealing the LAA. Increasing the flow is accomplished through shunts, flow diverters, agitators, or by increasing the size of the ostium. Closing off the LAA is accomplished using seals or by cinching the LAA.

A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.

Apparatus for progressively dilating the lumen of a narrow natural vessel such as an iliac artery and implanting a tubular device enabling access through the dilated lumen to conduct subsequent procedures via the dilated lumen, includes an inflatable integrated balloon locatable at least partially within the tubular device, the tubular device having a length L1 providing a self-expanding tubular body having at least a portion including stents, so that when the integrated balloon is removed the dilated lumen of the natural vessel remains dilated and supported by the tubular device.

The disclosure provides various embodiments of prostheses and delivery systems to permit an interventional cardiologist to create shunts between various blood vessels. Moreover, the disclosed shunts can be used to shunt between various hollow organs, as set forth in the present disclosure.

Various systems, devices, and methods for endovascular implants and placement thereof are disclosed. The implants include a proximal implant segment, a distal implant segment, connector struts connecting the proximal implant segment to the distal implant segment, and a side opening between the proximal implant segment and the distal implant segment. The implants can be used to create an arteriovenous fistula or connect one vessel of the body to another by placement of the proximal implant segment and the distal implant segment within the vessels to be connected. The implants can include one or more anchors for securing the implant in place with respect to the vessels of the body it is connecting. The implants can also include a continuous strut or ring at a distal edge of the proximal implant segment. Also disclosed are methods for percutaneous placement of the implants, and a device for percutaneous delivery.

Methods, devices, and kits for implanting a vascular graft to perform hemodialysis treatments on patients with renal failure are disclosed. The kits can include access devices comprised of an access catheter having a guidewire lumen and stylet lumen, a guide tube having a curved distal end, a stylet, an actuator handle and a vascular graft. The methods describe techniques for using the described kits and devices for performing vascular procedures, such as percutaneous implantation of the vascular graft.

Medical devices and related method for improving blood flow to regions of a patient are described herein. Some medical devices may include a first graft portion, a second graft portion, and a catheter portion disposed between the first graft portion and the second graft portion. The medical device may be implanted into a patient to establish a non-natural flow path.