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FORMED COPPER TUBING FOR MAGNETIC RESONANCE GRADIENT COIL

IP.com Disclosure Number: IPCOM000225882D
Publication Date: 2013-Mar-11
Document File: 3 page(s) / 48K

Publishing Venue

The IP.com Prior Art Database

Abstract

The proposed invention includes formed or crushed copper tubes for (magnetic resonance) MR gradient coils. The copper tubes are crushed to shape for fabricating gradient coils. Use of crushed tubing eliminates requirement of many small machined copper fittings. Further, use of crushed tubing reduces number of braze fittings required and radial profile of the gradient coil.

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FORMED COPPER TUBING FOR MAGNETIC RESONANCE GRADIENT COIL

FIELD OF INVENTION

The invention generally to magnetic resonance (MR) gradient coil and more particularly to formed copper tubing for magnetic resonance (MR) gradient coils.

                                      BACKGROUND OF THE INVENTION

Magnetic resonance imaging (MRI) systems involve passing of current through gradient coils to create a magnetic field.  In order to create a magnetic field of required strength, relatively high current is passed through the gradient coils.  Conventionally, hollow-rectangular wires are used for fabricating the magnetic resonance (MR) gradient coils.

The hollow rectangular profile of the wire is achieved by extrusion.  Such profile obtained by the extrusion process inflates cost of each gradient coil significantly.

Therefore, there is need in the art for a technique for reducing cost of gradient coils used in an MRI system.

BRIEF DESCRIPTION OF THE INVENTION

The proposed invention includes formed copper tubes for magnetic resonance (MR) gradient coils.  The copper tubes are crushed to shape for gradient coils.  Use of crushed tubing eliminates need of many small machined copper fittings.  Upon crushing, the copper tube is converted standard fittings parts.  Further, the crushed tube reduces number of braze fittings required and radial profile of the gradient coil.

DETAILED DESCRIPTION OF THE INVENTION

The invention proposes formed or crushed conducting copper tubes for fabricating magnetic resonance (MR) gradient coils.  Copper tubes having appropriate thickness and outer diameter is crushed to shape and desired dimensions for fabricating the gradient coils.  FIG. 1 depicts a copper tube that is crushed to shape.

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