Medical occluder delivery systems

A method for delivering and deploying an implantable balloon-based occlusion device that includes an inflatable balloon, the method comprising, using a delivery system:

• filling, with fluid, a fluid-retaining chamber of the delivery system, the fluid-retaining chamber delimited by a tubular barrel having a proximal end, a distal end, and an internal surface, wherein a plunger is slidingly disposed in the fluid-retaining chamber so as to provide a movable membrane;
• using a delivery catheter of the delivery system, advancing the implantable balloon-based occlusion device to a desired site in a body of a subject, the delivery catheter including (i) a fluid-conveyance lumen catheter, which is shaped so as to define a catheter fluid-conveyance lumen in fluid communication (a) with the fluid-retaining chamber and (b) with the inflatable balloon of the balloon-based occlusion device when the fluid-conveyance lumen catheter is coupled to the inflatable balloon, and (ii) a catheter lumen shaft, which is in reversible connection with the balloon-based occlusion device, longitudinally slidable with respect to a delivery handle;
• and
• thereafter, rotating a proximal rotatable user-control knob of the delivery handle of the delivery system in a first rotation direction, such that that the delivery system concurrently (a) expels at least some of the fluid from the fluid-retaining chamber into the inflatable balloon of the balloon-based occlusion device, via the catheter fluid-conveyance lumen, and (b) shortens a length of the balloon-based occlusion device by proximally pulling the catheter lumen shaft.