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HOME : ABOUT ARNOLD : SERVED MARKETS : MEDICAL
Market Segment Discussion
Medical uses of magnetic products include the standard motors, power supply inductors, transformers, fans, etc. with which we are so familiar. However, there are many esoteric applications such as those in the list below.
 Blood contrast agents
Cell separation techniques
Gene manipulation tools
High rpm drill motors
Laboratory stirrers
Magnetic bandages and braces
MRI (Magnetic Resonance Imaging)
Surgical tool drapes
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Quality and Environmental Management Systems
As evidence of our commitment to the medical market and to continuous improvement, QS 9000 certification has been achieved and selected manufacturing locations have also been certified under ISO 14001 for environmental compliance.
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| Applications Engineering |
Whether your company has sophisticated in-house magnetics design capabilities or a more modest facility, our Applications Engineers are ready to support your efforts through the entire product life cycle including: |
• Conceptualization
• Initial design
• Prototyping
• Design optimization
• Pre-Production trials
• Validation testing support
• Production issues
• Cost reduction activities
• Next generation designs
Additional capabilities:
• Magnetic field mapping
• Magnetic properties testing
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Magnetic Toner Roll Assembly Field Map
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| Design Assistance |
Applications engineers at each of our manufacturing locations and at our world class Magnetics Technology Center in Marengo, Illinois (near Chicago), offer comprehensive design assistance.
- Magnetic modeling: 2D, Radially symmetric, 3D, Temperature dependence
- Design relationships to your Hall sensor and application Specifications
Complete analysis includes studying the effects of the operate and release point of the Hall sensors compard to the magnetic output waveform
- Quadrature encoders
- Switches and latches
- Ratiometric / Linear Halls
- Pulse counters
- Complex holding force calculations
- Insert and overmolding designs
- Manufacturability analysis
- Measurement capability to verify design
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| Magnetic Prototyping, Testing and Training |
Extensive magnetic prototyping and testing capabilities are available at the manufacturing locations and at our Magnetics Technology Center in Marengo, Illinois, USA.
Seminars in Magnetics are also available either at the Technology Center or at your company location. These classes are tailored to satisfy your needs, whether for inexperienced, non-technical persons or your most expert designers.
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| Boundary and Finite Element Analysis (BEA, FEA) |
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Complex devices can be modeled using boundary or finite element analysis.
Magnetic circuit analysis is routinely performed to optimize a design. Diligent application of these techniques can lead to beneficial innovations.
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| Application Examples |
Magnetic Resonance Imaging has revolutionized methods of medical evaluation by providing a non-invasive way to perform diagnoses.
The affected portion of the body is placed in a uniform, strong magnetic field. A pulsing field is then applied. Different body tissues absorb the fields to varying degrees allowing a computer to display a visualization of the inside of the body.
Recent advances in MRIs include smaller, portable units capable of viewing portions of the body such as arms or legs. The larger, whole body units have a reputation for being claustrophobic. Newer MRIs have an open structure, such as illustrated here, putting patients at ease.
A number of magnetic technologies are utilized in MRIs. Magnetic fields are supplied by permanent magnets and/or superconducting electromagnets. Additionally, field uniformity is assisted by the placement of high saturation, flux carrying soft magnetic alloys. The power source for the MRI utilizes soft magnetic components in its transformers, inductors and EMI/RFI interference shielding.
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Surgical Drapes |
Surgical drapes are used to hold surgical instruments during operations and to assist in the accounting for these instruments at the end of surgery.
The drape is fabricated from strips of flexible magnets encased in a closed-cell foam sheet.
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