Abstract: Systems and method of wrapping an object are disclosed. An object wrapping system includes a contractible loop, a positioning system, and a wrapping material system. The contractible loop is configured to be deployed in an expanded position and a contracted position. The positioning system is configured to position an object in alignment with an aperture defined by the contractible loop. The wrapping material system is configured to position a wrapping material between the object and the aperture. The positioning system is configured to move the object into the wrapping material and through the aperture when the contractible loop is deployed in the expanded position. The contractible loop is configured to deploy into the contracted position to at least partially close the wrapping material around the object.

Abstract: A method of assembling a valvular structure can include folding an upper tab of a first leaflet onto a lower tab of the first leaflet, disposing a first end of a reinforcing member on the upper tab, disposing a commissure member adjacent the lower tab, and coupling the first end of the reinforcing member, the tabs of the first leaflet, and the commissure member to one another. The method can further include folding an upper tab of a second leaflet onto a lower tab of the second leaflet, disposing the second leaflet adjacent the first leaflet such that the commissure member is positioned between the lower tabs, disposing a second end of the reinforcing member on the upper tab of the second leaflet, and coupling the reinforcing member, the upper and lower tabs of the second leaflet, and the commissure member to one another to form a commissure.

Abstract: A prosthetic heart valve and associated methods for assembling a prosthetic heart valve including an annular frame and a plurality of leaflets is disclosed. As one example, the valve includes a plurality of commissures, each commissure including an attachment member including a protruding portion, a first commissure tab of a first leaflet of the plurality of leaflets arranged adjacent to a first side of the protruding portion and secured directly to the attachment member. Each commissure further includes a second commissure tab of a second leaflet of the plurality of leaflets arranged adjacent to an opposite, second side of the protruding portion and secured directly to the attachment member.

Abstract: Expandable docking stations for docking an expandable valve can include a valve seat, one or more sealing portions, and/or one or more retaining portions. The valve seat can include radiopaque markers affixed to a frame or an impermeable member. The radiopaque markers can indicate a deployment location of the valve. The docking stations can be deployed from a catheter including one or more radiopaque markers. Relative positioning of two or more radiopaque markers can provide an indication of the amount of deployment of the docking station.

Abstract: Methods and systems are provided for treating a contaminated environmental medium. In one example, the treatment includes adding a first jarosite-group mineral to the contaminated environmental medium to form a wet mixture under a set of conditions. The set of conditions is maintained over a duration of time to expedite precipitation of a second jarosite-group mineral, the second jarosite-group mineral incorporating contaminant cations and contaminant anions into a structure of the second jarosite-group mineral. The first jarosite-group mineral is added in situ at a contamination site.

Abstract: Systems and method of wrapping an object are disclosed. An object wrapping system includes a contractible loop, a positioning system, and a wrapping material system. The contractible loop is configured to be deployed in an expanded position and a contracted position. The positioning system is configured to position an object in alignment with an aperture defined by the contractible loop. The wrapping material system is configured to position a wrapping material between the object and the aperture. The positioning system is configured to move the object into the wrapping material and through the aperture when the contractible loop is deployed in the expanded position. The contractible loop is configured to deploy into the contracted position to at least partially close the wrapping material around the object.

Abstract: Systems and method of wrapping an object are disclosed. An object wrapping system includes a contractible loop, a positioning system, and a wrapping material system. The contractible loop is configured to be deployed in an expanded position and a contracted position. The positioning system is configured to position an object in alignment with an aperture defined by the contractible loop. The wrapping material system is configured to position a wrapping material between the object and the aperture. The positioning system is configured to move the object into the wrapping material and through the aperture when the contractible loop is deployed in the expanded position. The contractible loop is configured to deploy into the contracted position to at least partially close the wrapping material around the object.

Abstract: Systems and method of wrapping an object are disclosed. An object wrapping system includes a contractible loop, a positioning system, and a wrapping material system. The contractible loop is configured to be deployed in an expanded position and a contracted position. The positioning system is configured to position an object in alignment with an aperture defined by the contractible loop. The wrapping material system is configured to position a wrapping material between the object and the aperture. The positioning system is configured to move the object into the wrapping material and through the aperture when the contractible loop is deployed in the expanded position. The contractible loop is configured to deploy into the contracted position to at least partially close the wrapping material around the object.