Pulmonary expansion therapy devices

A medical device comprising:

• an inflow tube;
• an outflow tube;
• a shell that houses a plurality of negative pressure lumens operatively coupled to the outflow tube and a plurality of positive pressure chambers operatively coupled to the inflow tube, wherein the shell is generally contoured to the triangular shape of a single human lung within a chest wall;
• a membrane including a plurality of suction cups, each of the plurality of suction cups operatively coupled to a corresponding one of the plurality negative pressure lumens;
• and
• a handle connected to the shell.

A medical device comprising:

• an inflow tube having a plurality of outlets and a plurality of pressure tubes, where each of the plurality of outlets is operatively coupled to a corresponding one of the plurality of pressure tubes;
• an outflow tube;
• a divider block coupled to the inflow tube and the outflow tube;
• a shell that houses a plurality of negative pressure lumens operatively coupled to the outflow tube and a plurality of positive pressure chambers, each of the plurality of positive pressure chambers operatively coupled to a corresponding outlet of the inflow tube, where each of the plurality of positive pressure chambers can be pressurized independently of the other positive pressure chambers;
• a membrane having an apex segment, a medial segment, and a lower segment, where each of the apex segment, the medial segment and the lower segment include a plurality of suction cups, each of the plurality of suction cups operatively coupled to a corresponding one of the plurality negative pressure lumens, where the divider block is coupled to the membrane between the apex segment and the medial segment;
• and
• a rotatable handle attached to the inflow tube and the outflow tube, whereby rotation of the handle generates a torque that causes distortion of the membrane.