Ingress protection for electrosurgical pencil switch |
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| 申请号 | US14857913 | 申请日 | 2015-09-18 | 公开(公告)号 | US09986984B2 | 公开(公告)日 | 2018-06-05 |
| 申请人 | COVIDIEN LP; | 发明人 | Robert B. Stoddard; Ian C. McEachern; Michael J. Brown; | ||||
| 摘要 | A method of assembling a surgical instrument includes coupling a power bus to a switch base that has a top, a bottom, and side surfaces; adhering a membrane to the top surface of the switch base over the power bus to form a switch base assembly; positioning the switch base assembly within a first portion of a switch base cavity defined by a lower housing portion; and joining the lower housing portion with an upper housing portion. The upper housing portion defines a second portion of the switch base cavity. Joining the lower housing portion with the upper housing portion disposes the switch base within the first portion of the switch base cavity and prevents fluid from penetrating a proximal portion of the switch base cavity within which an electrical lead is coupled to the power bus. | ||||||
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