A multiple disk centrifugal pump as a blood flow device

  title={A multiple disk centrifugal pump as a blood flow device},
  author={Gerald E. Miller and Bradley D. Etter and J. Dorsi},
  journal={IEEE Transactions on Biomedical Engineering},
A study of a multiple-disk, shear force, valveless centrifugal pump to determine its suitability as a blood flow device is discussed. A pulsatile version of the Tesla viscous flow turbine was designed by modifying the original steady flow pump concept to produce physiological pressures and flows with the aid of controlling circuitry. Pressures and flows from this pump were compared to a Harvard Apparatus pulsatile piston pump. Both pumps were connected to an artificial circulatory system… Expand

Figures, Tables, and Topics from this paper

A preliminary flow visualization study in a multiple disk centrifugal artificial ventricle.
Flow patterns in a multiple disk centrifugal pump were analyzed so that the device could be incorporated as a ventricular assist or a bridge-to-transplant device, matching theoretical predictions very well. Expand
Flow-Rate–Pressure Characteristics of a Disk Blood Pump
An experimental model of a disk pump for pumping a liquid has been designed and fabricated. This model was tested on a special stand with the use of a 40% aqueous solution of glycerin whoseExpand
Analysis of optimal design configurations for a multiple disk centrifugal blood pump.
A multiple disk centrifugal pump was analyzed as a blood pump for use in cardiac assistance or as a bridge to transplant device, finding that a 5 disk configuration with a 0.15 inch spacing produced optimal flow results with minimal degradation at higher afterloads. Expand
A Passively Suspended Tesla Pump Left Ventricular Assist Device
The design and initial test results of a new passively suspended Tesla type left ventricular assist device blood pump are described and one initial in vivo study showed an encouraging result. Expand
Synchronized pulsatile speed control of turbodynamic left ventricular assist devices: review and prospects.
The findings allow the conclusion that the speed modulation of turbodynamic VADs represents a consistent tool to systematically change the ventricular load and the pulsatility in the arterial tree. Expand
Flow through an outlet cannula of a rotary ventricular assist device.
The outlet flow fields of rotary VADs have the potential to produce thrombus, feasibly leading to thromboembolisms should the bend angle of the outlet cannula be acute enough, therefore, the placement of the outlets or conduit should be taken into consideration during implantation. Expand
Findlay Implantable Two-Stage Centrifugal Pump.
The conclusion is that the Findlay pump has the ability to operate with low blood damage, performs at acceptable rotational speed with reasonable hydraulic and mechanical efficiency, and is small and implantable. Expand
Performance analysis of a miniature turbine generator for intracorporeal energy harvesting.
The technical feasibility of harvesting 1 mW electric power using a miniature hydrodynamic turbine powered by about 1% of the cardiac output flow in a peripheral artery is explored and first estimates of the mechanical shear forces relevant to blood trauma and platelet activation are provided. Expand
Mathematical Model of Fluid Flow Between Rotating Nonplane Disks
A mathematical model of viscous fluid flow in the gap of a disk pump with nonplane disks has been developed. The characteristics of the pump — flow velocity, pressure drop, stress tensor, and theExpand
Shaft/shaft-seal interface characteristics of a multiple disk centrifugal blood pump.
The conclusions made from the results indicate that both the tested shaft seal materials and shaft materials are not ideal candidates to be used for the MDCP. Expand


A Centrifugal Pump for Circulatory Assistance
This report is a summary of the experience with the centrifugal pump concept for circulatory assistance, which demonstrated the ability of the pump to replace total cardiac output in patients who require chronic left ventricular support with acceptable pressure-flow characteristics. Expand
To pulse or not to pulse.
Pulsatile and nonpulsatile blood flow have been intensely studied for cardiopulmonary bypass, isolated organ perfusion, and myocardial preservation and new methods to create pulsatile flow and their adaptation to the standard roller pump are discussed. Expand
Development and evaluation of pulsatile roller pump and tubing for cardiac assistance.
A roller pump for cardiopulmonary bypass and circulatory assistance that has the ability to produce steady or pulsatile flow and the pulsatile mode can also be used for counterpulsation is developed. Expand
The compliance problem: a major obstacle in the development of implantable blood pumps.
Compliance chambers of the former design have been employed to provide the required compliance for motor-driven assist pumps in long-term calf studies and are shown to be effective in laboratory and animal studies. Expand
A Permanent Implantable Electric Blood Pump
Craig W. Sherman The VVD expands and collapses as the pump fills and ejects David Gernes blood, respectively, preventing the formation of high positive Warren Clay and negative air pressures as theExpand
Partial or Total Heart Substitution with a Double-Centrifugal Device — Theoretical and Physiologic Studies
When one deals with artificial hearts (AH) in 1978, considering the number of problems involved and the extent of research already undertaken, it is certainly necessary to state and justify one’sExpand
Experimental evaluation of complete electrically powered ventricular assist system.
  • J. Moise, K. Butler, +7 authors Y. Nosé
  • Computer Science, Medicine
  • Transactions - American Society for Artificial Internal Organs
  • 1985
The development effort, which began separately in 1977 and has been conducted jointly by Nimbus and the Cleveland Clinic since 1980, has demonstrated that the above features can be incorporated in a reliable LVAS. Expand
Fluid Flow: Pumps Pipes and Channels
Fluid flow is a fundamental area in all manufacturing, process design, and, particularly, chemical, petroleum and allied industries. Design of fluid flow systems is the basic building block ofExpand
A two and one half year clinical experience with a mechanical left ventricular assist pump in the treatment of profound postoperative heart failure.
A sac-type paracorporeal left ventricular assist pump was implanted in 9 patients suffering from profound left ventricular failure following open heart surgery. Two patients had good recovery of leftExpand
Clinical use of the total artificial heart.
This experience should encourage further clinical trials with the artificial heart, but it is emphasized that the procedure is still highly experimental and further experience, development, and discussion will be required before more general application of the device can be recommended. Expand