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MRI System Airbag

IP.com Disclosure Number: IPCOM000147780D
Original Publication Date: 2007-Apr-25
Included in the Prior Art Database: 2007-Apr-25
Document File: 1 page(s) / 53K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

In current Magnetic Resonance Imaging (MRI) systems, the magnet is vented through a mechanical valve also known as quench valve. The quench valve is vented directly out to the roof or the side wall of the hospital via a quench pipe. Every MRI magnet has to be attached to such a quench pipe. But the quench pipe is an expensive part of the system. Furthermore, it is difficult to install the quench pipe. The installation requires calculation for the number of bends and diameter. In addition, the installation causes disturbances to other departments of the hospital. Further, the position of where the quench pipe meets the MRI system has to be controlled exactly, as the joining pipe is not very flexible.

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MRI System Airbag

Idea: Philip Alan Charles Walton, GB-Oxford; Trevor Bryan Husband, GB-Oxford

In current Magnetic Resonance Imaging (MRI) systems, the magnet is vented through a mechanical valve also known as quench valve. The quench valve is vented directly out to the roof or the side wall of the hospital via a quench pipe. Every MRI magnet has to be attached to such a quench pipe. But the quench pipe is an expensive part of the system. Furthermore, it is difficult to install the quench pipe. The installation requires calculation for the number of bends and diameter. In addition, the installation causes disturbances to other departments of the hospital. Further, the position of where the quench pipe meets the MRI system has to be controlled exactly, as the joining pipe is not very flexible.

Therefore, it is proposed to use an air bag attached to the top of the magnet. The proposed design is a giant airbag which fills with helium gas when the burst disc has ruptured. The design of the airbag allows a burst disc rated at 1.8bar in the flow direction which is able to hold full vacuum in the reverse direction. In Figure 1 and Figure 2 a single airbag is shown which is contained in a tube. This tube is directly connected to the high pressure pipes. Both the primary and the auxiliary pipes can be attached to the airbag. Furthermore, the airbag cont...