Supporting tube for a magnetic resonance scanner

Abstract

Supporting tube made from reinforced plastic for magnetic resonance scanners with tracks for a patient bed and load-bearing shells formed on both sides, opening upwardly, with fastening members on the undersides is manufactured including the guide rails and the under embedded fastening members from mold-cast plastic and is locally provided with cast-in reinforcements only in the region bf the load-bearing shells.

1 . A supporting tube for a magnetic resonance scanner comprising: 
 a tube portion comprised of reinforced plastic having tracks adapted to receive a patient bed and load-bearing shells on opposite sides of said tube portion, said load-bearing shells opening upwardly, and under-embedded fastening members, said tube portion, including said tracks and said under-embedded fastening members, being formed from mold-cast plastic with localized cast-in reinforcements only at said load-bearing shells.    
   
   
       2 . A supporting tube as claimed in  claim 1  wherein said casting resin contains a filler.  
   
   
       3 . A supporting tube as claimed In  claim 2  wherein said filler is selected from the group consisting of silica powder, fused quartz, aluminum oxide, and aluminum hydroxide.  
   
   
       4 . A supporting tube as claimed in  claim 2  wherein said filler contains particles of different sizes.  
   
   
       5 . A supporting tube as claimed in  claim 4  wherein said filler contains powder particles and particles having a larger diameter than said powder particles.  
   
   
       6 . A supporting tube as claimed in  claim 5  wherein said particles having a diameter larger than said powder particles include spherical particles.  
   
   
       7 . A supporting tube as claimed in  claim 6  wherein said spherical particles are glass beads.  
   
   
       8 . A supporting tube as claimed in  claim 1  wherein said casting resin comprises fibrous reinforcement inserts.  
   
   
       9 . A supporting tube as claimed in  claim 1  wherein said fibrous reinforcement inserts comprise mats selected from the group consisting of felt mats and fabric mats.  
   
   
       10 . A supporting tube as claimed in  claim 8  wherein said mats are composed of fibers selected from the group consisting of glass fliers, aramid fibers and carbon fibers.  
   
   
       11 . A supporting tube as claimed in  claim 1  wherein said casting resin contains a filler coated with a bonding agent adapted to said casting resin.  
   
   
       12 . A supporting tube as claimed in  claim 1  wherein said casting resin contains a fibrous reinforcement insert coated with a bonding agent adapted to said casting resin.  
   
   
       13 . A supporting tube as claimed in  claim 1  wherein said plastic is a epoxide polyester-based hardened casting resin.  
   
   
       14 . A supporting tube as claimed in  claim 1  wherein said plastic is a polyurethane-based hardened casting resin.