4 patents in CPC class A61B
The object of this invention is to provide a stent for high frequency thermotherapy, which is fabricated by knitting first superlastic shape-memory alloy wires as a way to allow the first superelastic shape-memory alloy wires to cross each other at different positions to make a hollow cylindrical stent body having a net structure with a plurality of meshes. The stent body is covered with an insulating substance. A hollow cylindrical conductive body surrounds a waist part of the stent body while any one end or both ends of the conductive body is attached to the waist part of the stent body. At this time, the conductive body is fabricated by knitting second superelastic shape-memory alloy wires as a way to allow the second superelastic shape-memory alloy wires to cross each other at different positions.
A method of deploying a stent in a bifurcation includes introducing two guidewires through the main vessel and using the two guidewires for guiding a dual lumen catheter carrying a stent first to an initial position proximal to the stent deployment position, retracting one wire, and projecting it from the catheter and through a side of the stent a branch guidewire into the second branch vessel, and then moving the catheter to the predetermined deployment position while guided by the main guidewire in the first branch vessel, and the branch guidewire in the second branch vessel. The stent is then expanded, and the catheter is removed with the stent remaining in its deployed position An alternative embodiment includes introducing one wire, advancing the system over the one wire and subsequently introducing the second wire.
A surgical method of anchoring tissues in a target location, comprising tracking a cannulated dilator on a suture protruding from the target location and forming an enlarged opening in the target location using the cannulated dilator to enlarge the opening. A distal end of a guide wire is tracked through the dilator into the enlarged opening, and an anchoring device is slid on the guide wire to position the device in the enlarged opening. Advantageously, since the target location is dilated prior to receiving the anchoring device therein, a soft tissue disposed at the target location can be dilated before being anchored, to avoid possible damage to the tissue by the implanting device.
Systems and method in accordance with the embodiments of the present invention can include an implant for positioning within a cervical facet joint for distracting the cervical spine, thereby increasing the area of the canals and openings through which the spinal cord and nerves must pass, and decreasing pressure on the spinal cord and/or nerve roots. The implant can be inserted laterally or posteriorly.