Unlock instant, AI-driven research and patent intelligence for your innovation.

Solenoid Electromagnetic Devices for Magnetic Resonance Imaging Systems

A technology for magnetic resonance imaging and electromagnetic devices, which is applied in measurement devices, superconducting magnets/coils, circuits, etc., and can solve the problems of difficult storage and high cost of large journals

Active Publication Date: 2016-08-03
SIEMENS HEALTHCARE GMBH
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Storage of large journals can be difficult and costly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solenoid Electromagnetic Devices for Magnetic Resonance Imaging Systems
  • Solenoid Electromagnetic Devices for Magnetic Resonance Imaging Systems
  • Solenoid Electromagnetic Devices for Magnetic Resonance Imaging Systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] According to the invention, pairs of outer coils, such as shielding coils, are held against axial body forces by means of strip elements which extend around each shielding coil in the direction of the body force in a specific circumferential position, each strip The strap elements are joined by tension members to respective strap elements on the other shield coil of the pair of shield coils.

[0022] figure 1 A partial axial cross-section of an actively shielded magnet according to an embodiment of the invention is shown. The structure is substantially rotationally symmetric about an axis parallel to line A-A. In this specification, the terms "axial" and "axially" are used to denote directions parallel to the line A-A, while the terms "radial" and "radially" are used to denote directions perpendicular to the line A-A. A-A direction.

[0023] The solenoid magnet comprises an inner coil 10 and an end coil 12 of similar inner diameter bonded together, for example on an ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a solenoidal electromagnetic device for a magnetic resonance imaging system, comprising: an annular inner coil (10) and an annular end coil (12), said coils all concentrically aligned around an axis (A-A), said end coils are placed at axial ends on the outside of said inner coil along an axial direction; a pair of annular outer coils (14) aligned concentrically around said axis; and axial means of force (BF) holding the pair of outer coils (14), comprising: a strip element (16) surrounding a radially inner surface (24) of each outer coil in a specific circumferential position, a radially An outer surface (26) and extending axially outer surface, each strap element on one of said outer coils is joined by a tensile member (18) to a corresponding one on the other outer coil of the pair Stripe element.

Description

technical field [0001] The present invention relates to a method for producing a solenoid magnet with a supported external coil, and a solenoid magnet so produced. [0002] The invention particularly relates to such a solenoid magnet for use as a magnetic field generator in a Magnetic Resonance Imaging (MRI) system. In particular, the invention relates to such magnets formed from superconducting wires. Background technique [0003] In known magnet arrangements, solenoidal magnets generally comprise an end coil with a relatively large number of turns and thus a relatively large cross section, and a plurality of inner coils with a small number of turns and thus a small cross section. Traditionally, accurately machined formers such as cylindrical aluminum formers are provided with suitably shaped recesses in which wires are wound to form coils. Either by wet winding where the wire is passed through a resin bath before being wound onto the former or the coil can be dry wound (...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01F6/06H01F41/04G01R33/421
CPCG01R33/421H01F6/06H01F41/048G01R33/3802G01R33/3815H01F27/306H01F27/327H01F41/127G01R33/381
Inventor S.J.卡尔弗特
Owner SIEMENS HEALTHCARE GMBH