Patent ID: 9579430
Date: 2017-02-28
CPC Classifications: A61M

Claim:
1. A method for reduced pressure therapy, comprising: detaching a suction device that is attached to a wound covering, the suction device comprising a suction chamber with a slidable seal therein, wherein the slidable seal is configured to generate a reduced pressure in the suction chamber, an expandable fluid absorbent material retained within a carrier and located within the suction chamber, the material having a first and second state, wherein the material in the first state is a dry solid and the material in the second state is a semi-solid or gel and wherein the fluid absorbent material, prior to fluid absorption, has a fixed location within the suction chamber but is at least partially separable from the carrier during use upon fluid absorption and movable in the suction chamber; advancing the slidable seal to the distal end of the suction chamber without generating a reduced pressure; re-attaching the suction device to the wound covering; and activating the suction device to generate reduced pressure underneath the wound covering.