Agent delivery and aspiration device

An apparatus for the delivery of an agent into an orifice and the subsequent aspiration of contents from the orifice, comprising:

• a bulb, said bulb defining an air pocket capable of generating positive pressure when in a compressed state, and negative pressure when released from said compressed state;
• a reservoir of agent;
• a tube forming at least part of an agent dispensing pathway, said tube having a first end extending into said reservoir of agent;
• a device tip operatively connected to said bulb at one end of the bulb and recieving a second end of said tube, said device tip having a portion configured for contacting said orifice;
• a first valve positioned with respect to said air pocket, said reservoir of agent, and said tube such that said valve regulates flows through said tube in response to pressures from the compression and release of said bulb;
• and
• an aspiration pathway within said device tip comprising an aspirate chamber, wherein the aspiration pathway extends from the portion of the device tip configured for contacting said orifice to the air pocket of said bulb, and wherein the pathway is configured such that the aspirate chamber is connected to the air pocket of the bulb through a gas/liquid separator and a second valve;
• wherein said second valve regulates pressures and flows from the compression and release of said bulb, wherein said gas/liquid separator is positioned and configured to limit passage of aspirated contents into the air pocket of the bulb and wherein said device tip is capable of being removed from said bulb.