Systems and methods for delivering pressurized fluid to a target site alone or in conjunction with therapeutic agents

A system suitable for delivering a therapeutic agent to a target site, the system comprising:

• a container for holding a therapeutic agent;
• a pressure source having pressurized fluid, the pressure source in selective fluid communication with at least a portion of the container;
• a catheter in selective fluid communication with the container and configured for delivery of the therapeutic agent or the pressurized fluid to a target site;
• and
• a button configured to move between a default state and an activated state,
• wherein when the button is in the default state, delivery of the therapeutic agent and delivery of the pressurized fluid both are not allowed by pressing the button, and
• wherein when the button is in the activated state, the button is configured to selectively allow delivery of the pressurized fluid without the therapeutic agent or delivery of the therapeutic agent.

A system suitable for delivering a therapeutic agent to a target site, the system comprising:

• a container for holding a therapeutic agent;
• a pressure source having pressurized fluid, the pressure source in selective fluid communication with at least a portion of the container;
• a catheter in selective fluid communication with the container and configured for delivery of the therapeutic agent or delivery of the pressurized fluid without the therapeutic agent to a target site;
• a first valve connected between the pressure source and the container;
• and
• a housing configured to securely retain the container and rotationally support a button, wherein the button is configured to selectively actuate the first valve to deliver the therapeutic agent or deliver the pressurized fluid without the therapeutic agent.