Abstract:
Described here are devices and methods for dilating tissues. In other variations, the dilatation device comprises a slotted or expandable tube that may expand to dilate tissue. In still other variations, the dilatation device comprises two or more hinged or movable plate members that separate to dilate tissue. In yet other variations, the dilation device may comprise one or more flexible members. One or more portions of the dilatation device may be detachable from the device in the body, and dilatation device may release one or more implants into the body. In some of these variations, the dilatation device may additionally be used to expand one or more implants or other devices within the body. In some variations the dilatation device may release one or more substances that may hold dilated tissue in a dilated configuration.
Abstract:
An exemplary display device includes a display panel and a rotating apparatus. The rotating apparatus includes a first spindle assembly, a conveyor connecting to the first spindle assembly, and a second spindle assembly. The first spindle assembly includes a first spindle configured to synchronously rotate with rotation of the display panel. The second spindle assembly includes a second spindle meshed with the first spindle, and is configured to be able to rotate and simultaneously rise or fall along the connecting assembly.
Abstract:
Disclosed is a method for fabricating a stent, the method comprising: positioning a polymeric tube inside a mold, wherein a high thermally conductive element covers at least a portion of the outer surface of the mold, the high thermally conductive element having a thermal conductivity that is greater than that of the mold; heating at least a portion of the mold; radially expanding the tube against the mold; and fabricating a stent from the radially expanded tube.
Abstract:
Disclosed herein is a method of fabricating a stent assembly comprising radially expanding a polymeric tube to an optimal degree of radial expansion; fabricating a stent from the expanded polymeric tube; and crimping the stent onto a catheter assembly, wherein the temperature of the stent during crimping is an optimal crimping temperature, wherein the optimal degree of radial expansion and the optimal crimping temperature correspond to an optimal fracture toughness exhibited by the crimped stent upon its deployment as a function of degree of radial expansion and crimping temperature.
Abstract:
The present invention relates to a composition of a first single enantiomer homopolymer and a separate stereocomplex formed of a second single enantiomer homopolymer and it mirror image enantiomer, wherein the first and second single enantiomer homopolymers can be the same or different.