Patent ID: 11896777
Assignee: QMAX, LLC
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 3:
4. The expandable tubing of claim 1, where the outer tube body has a natural state and an expanded state,
where when the outer tube body is in the natural state, the spring material is biased to expand a diameter of the outer tube body,
where when the outer tube body is in the expanded state, the outer tube body is biased to contract the diameter of the outer tube body,
where the outer tube body is expandable from the natural state to the expanded state by advancing a device in the lumen,
where the outer tube body is contractible from the expanded state to the natural state by withdrawing the device from the lumen,
where the spring material has a first shape when the outer tube body is in the natural state, and
where the spring material has a second shape different than the first shape when the outer tube body is in the expanded state.