Manually activated negative pressure therapy system with pressure sensors

A manually compressible negative-pressure pump comprising:

• an end cap having an external surface;
• a housing including a bottom wall and a charging chamber;
• a piston moveable within the charging chamber in response to the end cap being compressed toward the housing;
• a feedback module located within the pump, the feedback module comprising:
• at least one internal passageway;
• multiple sensors located between the external surface of the end cap and the charging chamber;
• an electrical circuit comprising a microprocessor and an electrical power source located between the external surface of the end cap and the charging chamber;
• an indicator operably activated by the microprocessor in response to a condition sensed by at least one of the sensors.

A negative-pressure therapy system comprising:

• a dressing including a tissue interface and a sealing layer;
• a manually-actuated pump comprising:
• a manually moveable cap;
• a charging chamber;
• a piston moveable within the charging chamber in response to movement of the cap;
• a feedback module located internally within the pump, the feedback module comprising:
• multiple passageways;
• multiple sensors;
• an electrical circuit including a controller and a battery;
• a visual indicator operably activated by the controller in response to a condition sensed by at least one of the sensors;
• the feedback module being longitudinally elongated in a direction of movement of the piston;
• the feedback module including at least two elongated sections with at least one of the passageways being located within a first of the sections;
• an elongated tube connecting the tissue interface to the at least one of the passageways of the first module section;
• and
• all of the sensors, electrical circuit and indicator are mounted to a second of the module sections.