发明名称 |
Shielding structure of electronic endoscope apparatus |
摘要 |
A shielding structure of an electronic endoscope apparatus which can sufficiently remove noise even when an electric cautery is used. A signal transmission cable which connects a charge coupled device disposed at the end portion of an electronic endoscope to a processor unit is electrically shielded by a double shield composed by an inner shield and an outer shield. The inner shield is connected to the ground in a light source connector and the outer shield is connected to the frame ground of the processor unit through a capacitor. The outer shield is further connected to a shielding member provided around the charge coupled device and a patient ground to which an electrode piece of an electric cautery is connected. Noise is greatly removed, so that the picture quality is improved.
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申请公布号 |
US5569158(A) |
申请公布日期 |
1996.10.29 |
申请号 |
US19940313363 |
申请日期 |
1994.09.27 |
申请人 |
FUJI PHOTO OPTICAL CO. LTD. |
发明人 |
SUZUKI, SHIGEO;OKADA, FUJIO |
分类号 |
G02B23/24;A61B1/00;A61B1/04;A61B1/05;H05K9/00;(IPC1-7):A61B1/05 |
主分类号 |
G02B23/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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