Integrated hemostasis bypass valve

A delivery device for a collapsible and expandable medical device, the delivery device comprising:

• a handle;
• a catheter sheath extending distally from the handle;
• a hemostasis valve positioned within the handle, the hemostasis valve being located proximal the catheter sheath and distal to a proximal end of the handle;
• and
• a hemostasis bypass assembly coupled to the handle, the hemostasis bypass assembly including a bypass tube coupled to an actuator, the actuator configured to be transitioned between a first condition in which a distal end of the bypass tube is positioned proximal to the hemostasis valve and the hemostasis valve is closed, and a second condition in which the distal end of the bypass tube traverses the hemostasis valve and the hemostasis valve is opened,
• wherein the hemostasis valve is part of a hemostasis valve assembly, the hemostasis valve assembly including a main body extending proximal of the hemostasis valve and a hub extending distally of the hemostasis valve, the main body and the hub maintaining the hemostasis valve therebetween,
• wherein the actuator is a rotatable knob,
• wherein the main body includes one or more protrusions extending radially outwardly from the main body, and the rotatable knob includes one or more curved recesses on an interior surface thereof, the one or more protrusions received within a corresponding one or more curved recesses on the interior surface of the rotatable knob, such that rotation of the rotatable knob translates the bypass tube toward or away from the hemostasis valve,
• wherein the hemostasis bypass assembly includes a retaining ring that overlies the main body of the hemostasis valve assembly, a proximal end of the retaining ring being coupled to a distal end of the rotatable knob,
• wherein in an assembled condition of the delivery device, the retaining ring is fixed to the rotatable knob wherein the retaining ring includes one or more recesses being sized and spaced to align with the one or more protrusions.