Access device having an anchoring feature and methods of using the same

A medical device, comprising:

• an elongate member defining a lumen and having a first end portion and a second end portion, the second end portion having a first configuration and a second configuration, the second end portion having a first size when the second end portion is in its first configuration and a second size when the second end portion is in its second configuration, the first size being smaller than the second size, the second end portion being biased to its second configuration;
• and
• a sleeve movably coupled to the elongate member, the sleeve having a contact surface, the contact surface being configured to contact the second end portion of the elongate member to help retain the elongate member in its first configuration.

A method, comprising:

• inserting a medical device into a body of a patient, the medical device including an elongate member and a sleeve;
• and
• moving the elongate member with respect to the sleeve such that an end portion of the elongate member moves away from an end portion of the sleeve and moves from a collapsed configuration to an expanded configuration.