Reduced pressure indicator for a reduced pressure source

A reduced pressure therapy system for administering reduced pressure treatment to a tissue site, the system comprising:

• a manifold adapted to be positioned at the tissue site;
• a reduced pressure source in fluid communication with the manifold to deliver a reduced pressure to the manifold, the reduced pressure source comprising:
• a top casing portion;
• a bottom casing portion slidably coupled to the top casing portion such that the top casing portion is positionable in a plurality of positions relative to the bottom casing portion to deliver a reduced pressure to a tissue site, the plurality of positions including a fully compressed position, a fully uncompressed position, and a plurality of intermediate positions between the fully compressed position and the fully uncompressed position;
• and
• an indicator disposed on at least one of the top casing portion and the bottom casing portion, the indicator being exposed when the top casing portion is in at least one of the plurality of intermediate positions and being substantially obscured when the first casing portion is in the fully compressed position;
• and
• a sealing member adapted to cover the tissue site to form a sealed space between the sealing member and the tissue site, the sealed space in fluid communication with the reduced pressure source.

A reduced pressure apparatus comprising:

• a substantially cylindrical top casing portion;
• a substantially cylindrical bottom casing portion having a larger diameter than the substantially cylindrical top casing portion, the substantially cylindrical top casing portion slidably received by the substantially cylindrical bottom casing portion such that the substantially cylindrical top casing portion is positionable in a plurality of positions relative to the substantially cylindrical bottom casing portion, the plurality of positions including a fully compressed position, an uncompressed position, and a plurality of intermediate positions between the fully compressed position and the uncompressed position, the reduced pressure apparatus operable to deliver a reduced pressure as the substantially cylindrical top casing portion moves from the fully compressed position to the uncompressed position;
• and
• a color strip disposed on the substantially cylindrical top casing portion such that the color strip is exposed when the substantially cylindrical top casing portion is in the uncompressed position and is obscured when the substantially cylindrical top casing portion is in the fully compressed position.