摘要:
Various techniques are described for replacement heart valve implantation. In one example, a system includes a specialized conduction system tissue activation potential sensing device, configured for delivery to an intracardiac region, a specialized conduction system tissue activation detector circuit, configured to detect, using the sensing device, a specialized conduction system tissue activation potential, and a processor circuit, configured to use information about the detected specialized conduction system tissue activation potential to generate a heart valve placement indication.
摘要:
A transcatheter valve frame (10) comprising a valve frame comprising an elongate tubular member having a longitudinal axis and a circumference, the elongate tubular member comprising a plurality of struts (16) interconnected by peaks (18a) and valleys (18b) that define a closed cell construction comprising a plurality of interconnected cells (14), the valve frame is formed from a single piece of material comprising a metal or metal alloy, the valve frame having a diameter that increases upon axial compression and the valve frame comprising a locking mechanism integral with the valve frame configured to fix the diameter of the valve frame.
摘要:
The present invention relates to a guide extension catheter (14), comprising a proximal shaft (102) having a proximal end (104), a distal end (106, the distal end having an attachment region (108), and a distal sheath (110) having proximal (114) and distal (112) ends, a portion of distal sheath includes a braided reinforcing member (116) attached to the attachment region.
摘要:
The present invention relates to a guide extension catheter (14), comprising a proximal shaft (102) having a proximal end (104), a distal end (106, the distal end having an attachment region (108), and a distal sheath (110) having proximal (114) and distal (112) ends, a portion of distal sheath includes a braided reinforcing member (116) attached to the attachment region.
摘要:
Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a loading tool. The loading tool may include a tubular member that is configured to be disposed about a balloon catheter. The tubular member may include a distal portion and a proximal portion. The tubular member may be configured to shift between a first configuration and a shortened configuration.
摘要:
The present invention relates to a guide extension catheter (14), comprising a proximal shaft (102) having a proximal end (104), a distal end (106, the distal end having an attachment region (108), and a distal sheath (110) having proximal (114) and distal (112) ends, a portion of distal sheath includes a braided reinforcing member (116) attached to the attachment region.
摘要:
An endoprosthesis includes a stent having an inner surface defining a lumen and an outer surface; and a polymeric cover on the outer surface of the stent. The polymeric cover includes a base and adhesion elements. When the endoprosthesis is expanded to the expanded state in a lumen defined by a vessel wall, the adhesion elements create an interlock between the vessel wall and the endoprosthesis.