Paul Kurth,Andrew Armour,Andrzej J. Chanduszko,Carol A. Devellian
申请号：
US14638537
公开号：
US09821145B2
申请日:
2015.03.04
申请国别(地区):
US
年份:
2017
代理人:
摘要：
Devices and methods for performing a transseptal puncture procedure using a device which includes either an untapered or tapered blunt end cannula disposed in an introducer carrying a sharp guidewire disposed longitudinally through the lumen of the blunt cannula, and a blunt end dilator wherein the guidewire is flexible and has an atraumatic shape at its tip. The cannula gives the more flexible introducer a defined shape and steerabilty allowing an ordinarily skilled physician to easily access a selected location on the septal wall of the heart for transseptal puncture and introducer placement thereacross without employing an exposed sharp end needle during the procedure.
