Transseptal insertion device

A transseptal insertion device for precise and safe transseptal insertion of a medical device through a cardiac septum comprising:

• a device housing having a distal end and a proximal end and including an outer wall and an inner wall wherein said inner wall and said outer wall are fixedly connected together and said inner wall and said outer wall are stationary relative to each other and said inner wall and said outer wall define an annular gap therebetween and wherein said inner wall defines a central lumen extending between said proximal and distal ends and wherein the medical device is received within said central lumen of said device housing;
• a slidable body positioned within said device housing annular gap, said slidable body having a distal end and a proximal end and defining a central lumen, configured to receive said device housing inner wall, said slidable body comprising a pusher and a guide element wherein said guide element is positioned on said slidable body distal end and said pusher extends within said device housing annular gap wherein said slidable body moves within said device housing annular gap from a first retracted position wherein at least a distal end of said pusher and said guide element are received within said device housing to a second advanced position wherein said guide element extends from said device housing distal end so as to contact the cardiac septum and wherein the medical device is configured to advance though said guide element for penetrating the cardiac septum.