A method for improving resistance of display of OCT equipment to electromagnetic field interference radiated by radio frequency
A technology of radio frequency radiation and radio frequency interference, which is applied in the fields of improving OCT equipment display anti-radiofrequency radiation electromagnetic field interference, and medical display anti-radiofrequency radiation electromagnetic field radiation technology, to achieve the effect of reducing requirements, widely adapting, and improving versatility
Inactive Publication Date: 2018-12-21
南京沃福曼医疗科技有限公司
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[0008] The purpose of the present invention is to invent a method for improving the anti-radiofrequency radiation electromagnetic field interference of the OCT equipment display in view of the problem that the existing OCT equipment display will appear on the screen when it is disturbed by a specific frequency
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[0015] The present invention will be further described below in conjunction with embodiment.
[0016] A method for improving the anti-radiofrequency electromagnetic field interference of the OCT equipment display. First, the shielding cover originally installed on the display control board is connected to the metal plate with a copper sheet or a copper connection belt, so that the shielding cover is subjected to external radio frequency interference. The potential is connected to the ground through the metal plate; secondly, the opening on the original shielding cover is blocked with a copper sheet to prevent the radiated electromagnetic field from directly entering the shielding cover and causing breakdown of the sensitive circuit; The wires are connected in series with magnetic rings to reduce the coupling interference caused by 28V / m radio frequency interference on the wires. This is because under 28V / m radio frequency interference, it is easy to couple the interference to ...
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A method for improving the resistance of display of OCT equipment to electromagnetic field interference radiated by radio frequency is characterized in that firstly, a shield cover originally mountedon a display control panel is connected with a metal plate by a cop sheet or a copper connecting tape, so that the potential generated by external radio frequency interference of the shield cover is communicated with the ground through the metal plate; Secondly, the coupling interference of 28V / m RF interference to the wire is reduced by connecting magnetic loops in series in the longer traces. The invention solves the problem of anti-radio frequency interference of the display, has simple method, improves the universality of the display, and reduces the requirement on the anti-interference grade of the display.
Description
technical field [0001] The invention relates to a display technology, in particular to a medical display anti-radiofrequency radiation electromagnetic field radiation technology, in particular to a method for improving the anti-radiofrequency radiation electromagnetic field interference of an OCT device display. Background technique [0002] At present, the intravascular tomographic imaging system and imaging catheter are designed to image blood vessels with a diameter > 1.5 mm, to achieve accurate measurement of lumen diameter and area, to image the vessel wall and intravascular implant structure, and to identify plaques. Block properties and evaluation for endovascular implants (stents, filters, coils, etc.). [0003] The intravascular tomography system is a system based on intravascular optical coherence tomography (OCT) technology combined with an imaging catheter. OCT technology is a new intracoronary imaging technology following intravascular ultrasound (Intravascul...
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Login to View More IPC IPC(8): H05K9/00A61B5/00A61B5/02
CPCH05K9/0007A61B5/0066A61B5/02007H05K9/0054H05K9/0064
Inventor 刘新峰匡皓杨龙曹苹王晓炜叶瑞东徐格林马敏敏
Owner 南京沃福曼医疗科技有限公司