YY/T 0987.5-2016 Translated English of Chinese Standard. (YYT 0987.5-2016, YY/T0987.5-2016, YYT0987.5-2016): Implants for Surgery - Magnetic Resonance Compatibility - Part 5: Magnetically Induced Torque Test MethodThis Part of YY/T 0987 includes test method for magnetically induced torque generated by medical devices as a result of static magnetic field in magnetic resonance environment; a comparison of magnetically induced torque and medical devices gravity moment. This Part does not involve other possible safety questions. These safety questions include, but are not limited to, magnetically induced displacement force generated by the spatial gradient of magnetic field, radio frequency heating and radio frequency induced heating, noise, interaction among medical devices, functions of medical devices and magnetic resonance system. |
Contents
| 3 | |
Scope | 5 |
Terms and Definitions | 6 |
Overview of Test Method | 8 |
Significance and Application | 9 |
Test Sample | 11 |
Calculation | 12 |
Appendix A Informative Fundamental Principle | 14 |
Bibliography | 19 |
Common terms and phrases
application arithmetic product deflection angle relative Diamagnetic eddy current equilibrium position example expressed in Tesla Ferromagnetic Ferromagnetic Material frequency induced heating gravity moment equals Image Artifacts implant’s magnetic Implants for Surgery induced displacement force loading tray’s deflection magnetic field spatial magnetic field strength Magnetic Flux Density magnetic force magnetic induction strength Magnetic Resonance Compatibility magnetic resonance environment Magnetic resonance equipment Magnetic Resonance Examination Magnetic Resonance Imaging magnetic resonance system Magnetically Induced Displacement Magnetically Induced Torque material refers maximum linear maximum torque medical devices Normative References Paramagnetic possible safety questions principal axis radio frequency heating radio frequency induced refer to YY/T refers to static replace ASTM Rotary Knob Rotate the supporting severest gravity sketch maps specified date static magnetic field supporting structure surface of medical terms and definitions Test device Test Sample torque measurement device torque refers torsional spring tray’s deflection angle unit vector vertical direction vivo weight of medical