Results 251 to 260 of about 108,946 (305)

Axial Flow Catheter Pump for Circulatory Support

Biomedizinische Technik/Biomedical Engineering, 2002
The development of a percutaneously insertable catheter pump for temporary left ventricular and circulatory support in patients with acute ischemic cardiomyopathy.The expandable axial flow pump (introduction diameter 9-F, expanded diameter 6.5 mm) is mounted at the tip of a catheter, designed to be placed in aortic transvalvular position.
T, Schmitz-Rode, J G, Pfeffer, S, Graf, F, Buss, C, Brücker, T, Siess, R W, Günther   +6 more
openaire   +2 more sources

Axial Type Self‐Bearing Motor for Axial Flow Blood Pump

Artificial Organs, 2003
Abstract: An axial self‐bearing motor is proposed which can drive an axial blood pump without physical contact. It is a functional combination of the bi‐directional disc motor and the axial active magnetic bearing, where it actively controls single degree‐of‐freedom motion, while other motions such as lateral vibration are passively stable.
Yohji, Okada, Toru, Masuzawa, Ken-Ichi, Matsuda, Kunihiro, Ohmori, Takashi, Yamane, Yoshiaki, Konishi, Shinya, Fukahori, Satoshi, Ueno, Seung-Jong, Kim   +8 more
openaire   +2 more sources

Off-pump Replacement of the INCOR Implantable Axial-flow Pump

The Journal of Heart and Lung Transplantation, 2009
Owing to the actual increase of mechanical circulatory support durations, total or partial replacement of ventricular assist devices (VADs) will most certainly have to be performed with increasing frequency. Herein we report the case of a patient in whom an INCOR (Berlin Heart AG, Berlin) implantable axial-flow pump was replaced without the use of ...
Kuniki, Nakashima, Matthias E W, Kirsch, Emmanuelle, Vermes, Odile, Rosanval, Daniel, Loisance   +4 more
openaire   +2 more sources

A Two Stage Axial Flow Pump

ASAIO Journal, 1995
From an engineering point of view, the suitable revolution number for high efficiency operation of an axial flow pump is known. A multistage axial flow pump is a useful tool for reducing revolution number with a high efficiency axial flow pump. A two stage (25) axial flow pump designed at a 5 L/min flow rate and a 100 mmHg pressure head was evaluated ...
Yoshinari Wakisaka, Takeshi Nakatani, Hirohumi Anai, Kenzi Araki, Yoshiyuki Taenaka, Eisuke Tatsumi, Toru Masuzawa, Yuzo Baba, Kazuhiro Eya, Kouiti Toda, Motomu Tominaga, Won Woo Choi, Hisateru Takano   +12 more
openaire   +1 more source

Submersible axial-flow pumps for dredges

Hydrotechnical Construction, 1995
1. For the first time in Russia a submersible axial-flow dredge pump was developed and tested for installation as a first-stage pump on dredges to reduce the negative pressure before the hold dredge pump and to increase its positive suction head. 2.
S. P. Ogorodnikov, N. N. Kozhevnikov, A. E. Kulakov   +2 more
openaire   +1 more source

Suction Reverse Flow in an Axial-Flow Pump

Journal of Fluids Engineering, 1991
Experiments are carried out to determine the effects of different inlet geometries on the onset of suction recirculation and its associated power consumption in an axial-flow pump. The critical flow rate is determined by both the “string” visual technique and “pressure” method.
K. Alpan, W. W. Peng
openaire   +1 more source

Advanced Suction Detection for an Axial Flow Pump

Artificial Organs, 2006
Abstract:  An automatic detection system for ventricular collapse was developed and tested in a first clinical trial as part of a physiological speed control concept for axial flow pumps. From this clinical experience, and based on the acquired data during this trial, an optimization of the developed system was performed.
Michael, Vollkron, Heinrich, Schima, Leopold, Huber, Robert, Benkowski, Gino, Morello, Georg, Wieselthaler   +5 more
openaire   +2 more sources

Axial flow blood pumps.

ASAIO journal (American Society for Artificial Internal Organs : 1992), 2003
Each year, thousands of cardiac patients await healthy donor hearts for transplantation. Due to the current shortage of donor hearts (approximately 2300 per year), these patients often require supplemental circulatory support until a transplant becomes available. This supplemental support is often provided by a mechanical heart pump or left ventricular
Xinwei, Song, Amy L, Throckmorton, Alexandrina, Untaroiu, Sonna, Patel, Paul E, Allaire, Houston G, Wood, Don B, Olsen   +6 more
openaire   +1 more source

Development of an Axial Flow Blood Pump LVAS

ASAIO Journal, 1992
Nimbus, Inc., (Rancho Cordova, CA) and the University of Pittsburgh (Pittsburgh, PA) are collaborating to develop an implantable rotary blood pump that can be used as a left ventricular assist system (LVAS). The short-term goal of this project is to show that an LVAS based on this pump can operate safely and reliably during chronic implantations in ...
K C, Butler, T R, Maher, H S, Borovetz, R L, Kormos, J F, Antaki, M, Kameneva, B P, Griffith, T, Zerbe, F D, Schaffer   +8 more
openaire   +2 more sources

CONE FLOW AND AXIAL FLOW PUMPS

1993
This chapter describes cone flow and axial flow pumps. For low heads up to about 40 m per stage and for type numbers above about 3000, cone flow and axial flow pumps may be used. In general, these pumps have vertical spindles and are arranged to draw water directly from a well or sump, for example, mixed flow pump.
openaire   +1 more source