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Improved Solenoid for use in Medical Devices

Problem Identified

Solenoids are widely used throughout industry as a means of facilitating the movement of an element through  electrically conductive coils upon the application of electric current to said coils. 

Solenoid technology has been the subject of much development over the years but problems with known solenoid technology still remain, for example the less than optimal force applicable to the movable element.  As a result, the application of known solenoid technology to devices in the medical arena has its limitations.  

The Solution

The Improved Solenoid was invented by John Charnley, a Master Locksmith from Newcastle Upon Tyne, and Clinton Sheppard, a Design Engineering Consultant from Arkansas in the United States.  The device has applications in heart assist devices, biomechanical devices such as artificial limbs, replacement hearts, portable ventilators and wound pressure application devices. 

The Improved Solenoid is set to make a significant contribution to patient health worldwide.

The Advantages

The Improved Solenoid is a truly bi-directional device which is able to apply the same magnitude of pushing force to an external device as it is able to apply pulling force. 

Moreover, the force applicable to an external device is able to remain constant over the allowable movement of the movable element through the electrically conductive coils, but may be varied when it is required to do so. 

The Opportunity

The Improved Solenoid is the subject of both a UK and an International Patent Application.  A manufacturing licence with a UK based solenoid manufacturer is currently in the process of being negotiated.    Expressions of interest in this technology are most welcome and  additional information concerning this project can be obtained from Victoria Christie on 0191 5164400 or email victoria.christie@nhsinnovationsnorth.org.uk

24/Feb/2010

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