A stented valve including a stent structure including a generally tubular body portion having a first end, a second end, an interior area, a longitudinal axis, and a plurality of vertical wires extending generally parallel to the longitudinal axis around a periphery of the body portion, wherein the plurality of vertical wires includes multiple commissure wires and at least one structural wire positioned between adjacent commissure wires, and a plurality of V-shaped wire structures having a first end, a second end, and a peak between the first and second ends, wherein a first end of each V-shaped structure extends from a first vertical wire and a second end of each V-shaped structure extends from a second vertical wire that is adjacent to the first vertical wire, wherein each V-shaped structure is oriented so that its peak is facing in the same direction relative to the first and second ends of the body portion, and a valve structure including a plurality of leaflets attached to the stent structure within the tubular body portion.

A method of assembling a prosthetic heart valve includes providing a collapsible and expandable stent having an annulus section and an aortic section. The annulus section has a first diameter in a relaxed condition and a second diameter less than the first diameter in a collapsed condition. A constraint is applied to the stent to constrain the annulus section to a predetermined diameter between the first and second diameters. Applying a cuff and/or a plurality of leaflets to the stent in the constrained condition enables less material to be used. The resultant prosthetic valve is therefore able to be collapsed to a smaller diameter for introduction into a patient.

The present invention relates to devices, assemblies and methods for monitoring radial expansion of a prosthetic valve during prosthetic valve implantation procedures.

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.

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.

A method for implanting a prosthesis centrally within a curved lumen includes loading a prosthesis into a delivery sheath, advancing the sheath in a patient towards the curved lumen to place at least the proximal end of the prosthesis within the curved lumen, and centering the proximal end of the prosthesis and/or the distal end of the sheath within the curved lumen. In a first advancing step, the outer catheter containing the inner sheath is advanced together towards the curved lumen to a location proximal of the curved lumen and, in a second advancing step, the inner sheath containing the prosthesis is advanced into the curved lumen to place at least the proximal end within the curved lumen while the outer catheter substantially remains at the location. After centering, the proximal end of the prosthesis is deployed centered within the curved lumen.

A shaft-shaped member 30 of an indwelling device 1 has an engaged portion 33 with which an engaging portion 15 of a tubular treatment device 10 engages, and a restriction portion 34 that restricts expansion of the engaging portion 15 engaged with the engaged portion 33 in a radial direction in cooperation with a linear member 36. The restriction portion 34 releases restriction on the expansion of the engaging portion 15 in the radial direction by releasing winding of the linear member 36 around the engaging portion 15.

Controlled deployable medical devices that are retained inside a body passage and in one particular application to vascular devices used in repairing arterial dilations, e.g., aneurysms. Such devices can be adjusted during deployment, thereby allowing at least one of a longitudinal or radial re-positioning, resulting in precise alignment of the device to an implant target site.

A method of assembling a prosthetic heart valve includes providing a collapsible and expandable stent having an annulus section and an aortic section. The annulus section has a first diameter in a relaxed condition and a second diameter less than the first diameter in a collapsed condition. A constraint is applied to the stent to constrain the annulus section to a predetermined diameter between the first and second diameters. Applying a cuff and/or a plurality of leaflets to the stent in the constrained condition enables less material to be used. The resultant prosthetic valve is therefore able to be collapsed to a smaller diameter for introduction into a patient.

A stent graft system includes a first layer of graft material, a second layer of graft material, one or more stent members, one or more reducing belts, and a release wire. The one or more stent members are located between the first layer of graft material and the second layer of graft material. The second layer of graft material is formed to have a corresponding channel over each of the one or more stent members. The one or more reducing belts each include a loop at both ends and each is located in a corresponding channel around a corresponding one of the stent members. The release wire passes through both loops of each of the one or more reducing belts when the one or more stent members are in a compressed state. Pulling the release wire allows for the stent graft system to radially expand.