Patent classifications
A61F2/2466
TECHNIQUES FOR GUIDE-WIRE BASED ADVANCEMENT OF A TOOL
An anchor is shaped to define a helix. A deployment tool is reversibly coupled to the anchor, and includes a lance. The deployment tool is configured to transluminally advance the anchor to the heart, and to stabilize the anchor at the tissue by driving the lance into the tissue. The deployment tool is also configured to anchor the anchor to the tissue, for example, by driving the tissue-penetrating helix into the tissue while the anchor remains stabilized at the tissue by the lance in the tissue, and to subsequently retract the lance from the tissue while leaving the anchor anchored to the tissue. Other embodiments are also described.
TRANS-SEPTAL DELIVERY SYSTEM AND METHODS OF USE
A delivery system for delivering a heart valve prosthesis includes a heart valve prosthesis and a delivery catheter. The heart valve prosthesis includes an anchoring member and an inner valve support, and further includes a radially collapsed configuration and a radially expanded configuration. The delivery catheter includes a handle, an outer shaft, an intermediate shaft, an inner shaft, and a distal tip component. The delivery catheter further includes a delivery configuration. In the delivery configuration, the outer shaft of the delivery catheter is configured to retain a first portion of the anchoring member, the intermediate shaft is configured to retain a first portion of the inner valve support, and the distal tip component is configured to retain a second end of the anchoring member and a second end of the inner valve support each in a radially compressed state.
ANCHOR MAGAZINES
A catheter device includes a tube, and an extracorporeal unit coupled to a proximal end of the tube. An implant includes a series of anchors and a tether. The series of anchors includes a first anchor and other anchors, arranged along the extracorporeal unit. Each of the anchors includes a tissue-engaging element, and a head that defines an eyelet. The tether extends, along the extracorporeal unit, through the eyelet of each of the other anchors to the first anchor such that (i) the first anchor is advanceable, with a distal end of the tether, distally into and through the tube toward the tissue, and (ii) subsequently, the other anchors are slidable, sequentially, over and along the tether, distally into and through the tube toward the first anchor. Other applications are also described.
Minimally-invasive low strain annuloplasty ring
A minimally-invasive annuloplasty ring for implant at a mitral annulus. The annuloplasty ring has an inner core member with a C-shaped plan view that generally defines an oval with a major axis and a minor axis, and is symmetric about the minor axis. A posterior portion of the core member bisected by the minor axis has a thicker radial dimension than a pair of free end regions terminating on an anterior side of the core member. The radial thickness smoothly transitions between the posterior portion and the end regions. The inner core member may be covered with a fabric, and is a superelastic metal so that it can be straightened out and delivered through an access tube. The curvatures and thicknesses around the core member are selected so that the strain experienced when straightened does not exceed 7-8%.
Method of repairing a defective heart valve
A method of repairing a defective heart valve is disclosed including directing an implant delivery catheter to form a first curve of the implant delivery catheter around chordae of the heart valve on a ventricular side of the heart valve, inserting the implant delivery catheter through the heart valve to an atrial side thereof, forming a second curve of the delivery catheter along an annulus of the heart valve on the atrial side, and ejecting an annuloplasty implant from the delivery catheter while retracting the delivery catheter such that the annuloplasty implant is arranged along the first and second curve on the ventricular and atrial side.
Method and apparatus for mitral valve chord repair
Methods and devices for transvascular prosthetic chordae tendinae implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, the catheter can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to a leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.
STABILIZING AND ADJUSTING TOOL FOR CONTROLLING A MINIMALLY INVASIVE MITRAL / TRICUSPID VALVE REPAIR SYSTEM
Disclosed herein are embodiments related to a method for performing a minimally invasive procedure, the method including delivering an annuloplasty ring in a linear shape using a delivery system. In some embodiments, the delivery of the annuloplasty ring may utilize a trans-septal approach or a trans-apical. In some embodiments, the delivery system may position the annuloplasty ring using a flexible stabilizing mechanism and/or activate one or more anchors to extend outward from the annuloplasty ring.
IMPLANTABLE CARDIAC VALVE IMPROVEMENT DEVICE AND PROCEDURE FOR TREATING INSUFFICIENT CLOSING OF A CARDIAC VALVE
An implantable medical device for transcatheter delivery, which includes an anchor unit (100) configured to be anchored at an annulus of a cardiac valve of a patient, at least one coupling unit (200) that extends along a first length radially from said anchor unit (100) towards a coaptation line of said valve and including an extension unit (400) extending along a second length. The extension unit (400) is configured to cross between the leaflets of the cardiac valve in order to fill out for an insufficient closing of the valve leaflets of said cardiac valve.
Artificial chordae tendineae and artificial chordae tendineae implantation system
An artificial chordae tendineae includes a chordae tendineae main body with at least one end connected to a fixing member. A side of the fixing member facing away from the chordae tendineae main body is provided with a puncturing connection member. An artificial chordae tendineae implantion system includes a clamping device, a puncturing device including a puncture needle, the artificial chordae tendineae, and a pushing device including a pushing shaft. The puncturing device and the clamping device are received in the pushing shaft. A proximal clamp of the clamping device is provided at a distal end of the pushing shaft. A distal clamp of the clamping device is provided at a distal end of the clamping push rod. A distal end of the puncture needle is provided with a tapped straight tip. The artificial chordae tendineae is received in the clamping device. The fixing member corresponds to the puncture needle.
VALVE CLAMPING DEVICE WITH LOCKING MECHANISM AND VALVE REPAIR SYSTEM
A valve clamping device (100) includes a fixing base (20), a pair of clamping arms (40), an actuator assembly (70) and a locking mechanism (80). The actuator assembly (70) includes an actuator shaft (72) movably inserted into the fixing base (20), the actuator shaft (72) moves axially to actuate the clamping arms (40) to be open and closed relative to the fixing base (20), and a positioning portion (720) is provided on the outer peripheral surface of the actuator shaft (72). The locking mechanism (80) includes a locking member (82) and a pushing member (84), a locking hole (820) is provided axially in the locking member (82), the actuator shaft (72) passes through the locking hole (820), and the pushing member (84) abuts against the locking member (82) and is provided obliquely in the fixing base (20), so that an edge (281) of the locking hole (820) is engaged with the positioning portion (720).