Portable blood pumping system

a blood pumping system and portability technology, applied in the direction of pumping, positive displacement liquid engine, machine/engine, etc., can solve problems such as patient care, and achieve the effect of preventing spring buckling

Inactive Publication Date: 2006-10-05
THE CLEVELAND CLINIC FOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] The present invention also relates to a pump including a prime mover and a pump housing having a fluid inlet and a fluid outlet. An impeller is disposed within the pump housing and is rotatable about an axis to move fluid from the fluid inlet to the fluid outlet. A face seal includes a fixed face on the pump housing and a rotatable face on the impeller. A spring preloads the rotatable face against the fixed face and transmits torque to the impeller from the prime mover. A sleeve encircles the spring along a substantial portion of the length of the spring and helps prevent buckling of the spring. The pump also includes means for reinforcing at least one end portion of the spring.

Problems solved by technology

CPB and EMCO procedures also could impact patient care in rural settings where access to sufficient medical facilities are not available.

Method used

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Embodiment Construction

[0018] The present invention relates to a portable blood pumping system for use in applications such as cardiopulmonary bypass, extracorporeal membrane oxygenation, hypothermic blood cooling, and other surgical procedures. As described herein, the entire pumping system is economically disposable, yet durable enough that non-blood contacting components may be employed repeatedly. This provides economic benefits and allows for stockpiling, which can make the system readily available for multiple or widespread uses. Also, as described herein, the blood pumping system is lightweight and compact, making it practical for rapid deployment to, and transportation with, a patient.

[0019]FIG. 1 illustrates an example configuration of a blood pumping system 10 of the present invention. The system 10 includes a control unit 20 and a pump 100. The control unit 20 is operatively connected to the pump 100 by cables 30 and 32. The cable 30 is used to provide power to the pump 100, provide power to o...

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Abstract

A pump (100) includes a pump housing (200) having a fluid inlet (114) and a fluid outlet (116). An impeller (252) is disposed within the pump housing (200) and is rotatable about an axis (156) to move fluid from the inlet (114) to the outlet (116). A flexible drive spring (270) connects the impeller to a rotating drive mechanism (312). The spring (270) transmits torque to the impeller (252) from the drive mechanism (312) and preloads the impeller against a surface (232) of the pump housing (200).

Description

Government Rights [0001] The invention described in this application was supported, at least in part, by United Stated Government Contract No. DAMD17-00-1-0701 with the United Stated Department of Defense and, thus, the United States government may have certain rights in the invention.TECHNICAL FIELD [0002] The present invention relates to a portable blood pumping system for use in cardiopulmonary bypass, extracorporeal membrane oxygenation, and other surgical procedures. BACKGROUND OF THE INVENTION [0003] Cardiopulmonary bypass (CPB), the shunting of blood around the heart and lungs, is a well-established surgical technique that enables repairs of cardiac structures, such as the heart and its blood vessels, that would otherwise not be possible. Extracorporeal membrane oxygenation (ECMO), increasing the oxygen content and decreasing the carbon dioxide content of the blood, is also a well-established technique. In trauma care, CPB and EMCO can be used to maintain patients with a vari...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04B17/00A61M60/113A61M60/216A61M60/419A61M60/531A61M60/554A61M60/818A61M60/871
CPCA61M1/101A61M1/1025F04D13/021A61M1/3653A61M2205/3334A61M1/3659A61M60/113A61M60/419A61M60/554A61M60/871A61M60/216A61M60/531A61M60/38A61M60/232A61M60/825A61M60/816A61M60/827A61M1/3666
Inventor REEVES, ANDREW B.DUDZINSKI, DAVIDCASAS, FERNANDOSMITH, WILLIAM A.
Owner THE CLEVELAND CLINIC FOUND
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