Syringe activated-valve for flushing a catheter and methods thereof

A method for flushing a catheter comprising the steps of:

• providing a catheter comprising a lumen, a proximal end, a distal end, and a “Y” connector at said proximal end, said “Y” connector comprising a connector port and a guide wire port;
• providing a syringe-activated valve comprising a first end and a second end;
• connecting said second end of said syringe-activated valve to said connector port of said “Y” connector of said catheter;
• connecting a syringe to said first end of said syringe-activated valve;
• injecting saline from said syringe through said syringe-activated valve into said proximal end of said catheter;
• and
• flushing air from said catheter lumen out said distal end of said catheter.

A delivery system for delivering an implant to an anatomical site in a patient, comprising:

• an intravascular catheter comprising a connector;
• a syringe-activated valve permanently joined to said connector;
• and
• a port for introducing the implant into the intravascular catheter for delivery to the anatomical site of the patient.

A syringe-activated valve, comprising:

• a valve housing comprising a proximal end, a distal end, and an axial bore comprising a proximal cylindrical bore, a distal cylindrical bore, and a shoulder positioned between said proximal cylindrical bore and said distal cylindrical bore;
• a sealing member enclosed by said valve housing, comprising an open position and a closed position, said sealing member slideably and axially disposed in said axial bore, said sealing member comprising a proximal cylindrical portion, a distal cylindrical portion, and an intermediate portion, said intermediate portion of said sealing member comprising a shoulder, said shoulder interfacing with and cooperating with said shoulder of the intermediate bore in the closed position;
• and,
• a backstop positioned in said distal bore distal to said distal portion of said sealing member and proximal to said distal end of said valve housing, wherein said sealing member occludes said axial bore in the closed position and opens said axial bore in said open position.