This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Tamari, Y. Articles by Hall, M. H Search for Related Content PubMed PubMed Citation Articles by Tamari, Y. Articles by Hall, M. H Social Bookmarking                         What's this?

A new bladder allows kinetic venous augmentation with a roller pump

Department of Surgery, North Shore University Hospital and New York University School of Medicine, Manhasset, New York; and Circulatory Technology Inc., Oyster Bay, New York, Yahoda{at}yahoo.com

Kerri Lee-Sensiba

Department of Surgery, North Shore University Hospital and New York University School of Medicine, Manhasset, New York

Rik Ganju

Circulatory Technology Inc., Oyster Bay, New York

Richard Chan

Department of Surgery, North Shore University Hospital and New York University School of Medicine, Manhasset, New York

Michael H Hall

Department of Surgery, North Shore University Hospital and New York University School of Medicine, Manhasset, New York

Augmented venous drainage improves venous return during minimally invasive cardiac surgery. Two systems to augment drainage are common: in one, a centrifugal pump draws blood from the venous site and pumps it into a venous reservoir. In the other, suction is applied directly to a hard-shell venous reservoir. Both systems overcome the high resistance of the venous cannula when gravity alone is insufficient to provide adequate drainage. Both systems also have shortcomings: in the first approach, the centrifugal pump head can entrap large bubbles, reducing flow and requiring pump stoppage to remove them. Air from the venous line also can be broken up by the centrifugal pump into small bubbles that can pass through the pump head. The direct suction system in the second approach cannot use a closed-bag reservoir, and has the potential to introduce air into the arterial line.

We have developed a new venous augmentation system for a closed venous reservoir that provides excellent suction control without the potential to introduce air into the arterial line. Our system replaces the centrifugal pump of the first approach with a roller pump controlled by the Better-Bladder^TM, a new device with FDA 510(k) clearance for long-term pumping. The Better-Bladder is a length of medical tubing, processed to form a thin-walled, enlarged bladder that is sealed within a clear rigid housing. It acts as an in-line reservoir that provides compliance in the venous line and a noninvasive means to measure blood pressure at the pump inlet. The bladder housing can maintain a negative pressure set by the user that controls the degree of gravity drainage. Tests have shown that the Better-Bladder allows for safe, smooth pump control using a roller pump in the venous line.

Perfusion, Vol. 14, No. 6, 453-459 (1999)
DOI: 10.1177/026765919901400608


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This article has been cited by other articles:

				M. A Sobieski II, M. S Slaughter, D. E Hart, P. S Pappas, and A. J Tatooles Peripheral cardiopulmonary bypass with modified assisted venous drainage and transthoracic aortic crossclamp: optimal management for robotic mitral valve repair Perfusion, September 1, 2003; 18(5): 307 - 311. [Abstract] [PDF]

				Y Tamari, K Lee-Sensiba, J Beck, R Chan, M Salogub, M Hall, T Lee, R Ganju, and L Mongero A new top-loading venous bag provides vacuum-assisted venous drainage Perfusion, September 1, 2002; 17(5): 383 - 390. [Abstract] [PDF]