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Carnegie Mellon University

Jooli Han

Dennis Robert Trumble

Arnold Robert Leiboff

A muscle-powered pulsation device for cardiac support including a muscle energy converter device including a piston arrangement for directing fluid out of an outlet of the muscle energy converter device using energy provided by a patient's muscle, and a hydraulic volume amplification device fluidly connected to the muscle energy converter device. The volume amplification device includes a casing including an inlet and an outlet, the inlet in fluid communication with the outlet of the muscle energy converter device, at least one resilient member positioned within an interior cavity defined by the casing, and at least one piston member movably and sealingly positioned within the interior cavity of the casing and operatively connected to the at least one resilient member, the at least one piston member separating the interior cavity into a first chamber and a second chamber.

Muscle-powered pulsation device for long-term cardiac support

Wound drain includes a body of elastomeric material. The body includes a flange having a generally planar form and an elongate shaft having a first portion extending to one side of the flange, and optionally a second portion extending to the opposite side of the flange. The flange has a cross-sectional length in a direction perpendicular to a longitudinal direction of the shaft that is larger than a cross-sectional length of the shaft. The shaft includes one or more channels each extending along its entire length or a portion of its length, and along both the first and second portions of the shaft when the second portion of the shaft is present. The shaft also includes one or more longitudinally extending openings that each lead to one of the channels.

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Pittsburgh, PA, United States of America

Jooli Han