发明名称 Methods and devices for termination
摘要 Devices and methods used in termination of a tissue tightening procedure are described. Termination includes the cinching of a tether to tighten the tissue, locking the tether to maintain tension, and cutting excess tether. In procedures involving anchors secured to the tissue, the tether is coupled to the anchors and the tissue is tightened via tension applied to the anchors by cinching the tether. In general, the devices and methods can be used in minimally invasive surgical procedures, and can be applied through small incisions or intravascularly. A method for tightening tissue by fixedly coupling a first anchor to a tether and slidably coupling a second anchor to the tether, securing both anchors to the tissue, applying tension to the tether intravascularly, fixedly coupling the tether to the second anchor, and cutting the tether is described. The tissue to be tightened can comprise heart tissue, in particular heart valve annulus tissue. Various devices and methods for locking the tether in place and cutting excess tether are described.
申请公布号 US9072513(B2) 申请公布日期 2015.07.07
申请号 US200812187331 申请日期 2008.08.06
申请人 Guided Delivery Systems Inc. 发明人 To John;Starksen Niel F.;Calhoun Tenny C.;Tang Brian
分类号 A61B17/32;A61B17/10;A61B17/04;A61B17/00;A61B17/064;A61B17/068;A61B17/128;A61B17/06;A61F2/24 主分类号 A61B17/32
代理机构 Morrison & Foerster LLP 代理人 Morrison & Foerster LLP
主权项 1. A device for cutting a tether comprising: a catheter comprising a side wall having a first opening therethrough; a retractable cutter housed within the catheter; a lasso threaded through the first opening and a second opening in the catheter positioned distal of the first opening, wherein the lasso is retractable to load the tether through the first and second openings, and wherein the cutter is configured such that proximal withdrawal of the cutter moves the cutter into contact with the tether to cut the tether passing through the first and second openings during the proximal withdrawal; and a locking feature configured to secure a tether, wherein the locking feature comprises a hollow region and a plug configured to fit within the hollow region.
地址 Santa Clara CA US