(43), and methods to pierce the heart of the organization (24) in coaxial transseptal equipment. (43) includes a piercing device having a shaft with a pointed distal portion coaxial transseptal device. And a (46) coaxial guidewire that is configured coaxially transseptal apparatus also (43), to move the piercing device (44) receiving (44) piercing device. Flexible coaxial guide wire (46) is increased and from the proximal end to the distal end.同軸経中隔装置(43)、および心臓(24)内の組織を刺通する方法。同軸経中隔装置(43)は、遠位尖鋭部分を備えたシャフトを有する刺通装置を含む。同軸経中隔装置(43)はまた、刺通装置(44)を受けて刺通装置(44)に対して動くように構成された同軸ガイドワイヤ(46)を含む。同軸ガイドワイヤ(46)の可撓性は、近位端から遠位端へと増大する。
