Valved devices, treatments and methods to restore tissue elastic recoil

A pulmonary treatment valve for treating a lung by placement within a lung passageway of the lung, the pulmonary treatment valve comprising:

• a continuous shaft comprising a shape memory material, wherein the shaft has a straightened shape when in a constrained configuration and a plurality of curves in an unconstrained configuration, wherein the plurality of curves form
• a) a securing element configured to secure itself to luminal walls of the lung passageway in a manner so as to maintain airflow through the lung passageway, and
• b) a sealing element configured to create a seal with the luminal walls of the lung passageway;
• and
• a valve element configured to restrict airflow through the lung passageway to at least 8.1 ml/see at 1 psi in at least one direction.

A pulmonary treatment system for treating a lung comprising:

• a securing element configured to secure itself to luminal walls of the lung passageway;
• a sealing element configured to create a seal with the luminal walls of the lung passageway;
• and
• a valve element configured to restrict airflow through the lung passageway to at least 8.1 ml/see at 1 psi in at least one direction, wherein the valve element is comprised of a material that has undergone a treatment to prevent or reduce bacterial adhesion.