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What are the common applications of lead screw in medical imaging?

Views: 5     Author: Site Editor     Publish Time: 2022-11-12      Origin: Site

What are the common applications of lead screw in medical imaging?

1.Intensity-Modulated Radiotherapy(IMRT) 

Linear accelerators are used to deliver precise radiation to cancerous individuals while minimizing the dose to surrounding normal tissue.The multi-leaf collimator is suitable for IMRT devices to move tungsten plates covering tumors for treatment.In this application,the thinner the plate,the higher the resolution,and a minimal lead screw diameter is required.Products used:Small diameter lead screws(as small as 2mm)and custom lead screw nuts made of materials designed for use in gamma radiation environments.

 

  lead screw for Intensity-Modulated Radiotherapy (IMRT)

Lead Screw for Intensity-Modulated Radiotherapy(IMRT) 

 

2.MRI,CT,and PET Machines

These types of imaging devices use a long lead screw to drive beds/beds and move beds in and out of machines.The lead screw is usually 20 mm in diameter with a long lead(up to 2 meters)with rear drive.The rear drive allows the patient to leave the machine in the event of a power outage.The lead screw is combined with the anti-backlash nut to achieve accurate bidirectional positioning.In these medical imaging applications,lead screw assemblies are preferred over ball screws because of their lower cost,long lead screw length,and smooth,quiet operation.Lead screws are usually made of stainless steel,but can be made of aluminum when magnetic fields are a factor.Products used:20mm diameter lead screw(aluminum if necessary),length of about 2m,with anti-backlash nut.


lead screw for MRI, CT And PET 

Lead Screw for MRI,CT,and PET Machines


3.X-Ray Machines and Digital Scanning Equipment

X-ray machines,digital scanning and printing applications use a lead screw to drive a read or write shaft to scan or print images.The lead screw is combined with anti-backlash nuts to provide high two-way repeatability and smooth operation.Highly customizable nuts are combined with lead screws to accommodate specific design features such as material and space constraints.Products used:Lead screw and custom anti-backlash nuts.

 

lead screw for X-Ray Machines and Digital Scanning Equipment 

Lead Screw for X-Ray Machines and Digital Scanning Equipment


ALM offers standard and custom lead screw assemblies in a variety of material options.Other customization options include a PTFE coating that reduces friction and increases efficiency,custom lead screw shaft end machining and custom nut design.



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