Apparatus and method for delivery and/or removal of occlusions in the body

A method of confirming intraluminal access of a body lumen and removing a first material from the body lumen, the method comprising:

• inserting a sheath into a body having the body lumen;
• advancing a probe relative to the sheath by an advancing distance into the body lumen;
• confirming the sheath has access to the body lumen if the advancing distance is greater than or equal to a threshold distance;
• agitating the first material in the body lumen with the probe;
• irrigating a second material into the body lumen;
• and
• aspirating the first material and the second material from the body lumen.

A device comprising:

• a sheath;
• and
• a probe,
• wherein the probe is advanceable from a retracted configuration to an advanced configuration relative to the sheath,
• wherein when the probe is in the retracted configuration, a first distance is between the probe and the sheath,
• wherein when the probe is in the advanced configuration, a second distance greater than the first distance is between the probe and the sheath,
• wherein the first distance is less than a threshold distance, and
• wherein when the second distance is greater than or equal to the threshold distance, the advanced configuration of the probe comprises an indicator to a user that the device has access to a target site.