Patent ID: 8177764

Claim:
A system for treatment of a patient, comprising: a. a sealable wound covering comprising a sealant layer and a flexible attachment port configured with a lumen that passes through the sealant layer; b. a reduced pressure generating assembly, comprising: i. a removable suction chamber with a longitudinal axis and a non-circular cross-sectional shape transverse to the longitudinal axis and a volume of 150 cc or less; ii. a piston assembly configured to slide in the suction chamber along the longitudinal axis and having a non-circular cross-sectional shape transverse to the longitudinal axis and a non-planar proximal perimeter; iii. at least two substantially constant force spring coils coupled to the piston assembly and configured to reduce pressure in the suction chamber by at least 50 mmHg; iv. a priming tool configured to push the piston assembly and comprising a locking mechanism and v. a connector tube configured to releasably attach to the sealable wound covering and to releasably attach to the removable suction chamber.