System and method for cleaning viewing scope lenses
US5392766A · kind A · utility
206Cited by
17References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Oct 6, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3441
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Percutaneous access devices are provided with cleaning elements for in situ cleaning of viewing scope lenses during surgical procedures. The access devices will comprise a cannula having an access lumen therethrough. The cleaning element will be disposed at or near the distal end of the cannula, preferably over or across a distal port of the cannula. The cleaning element may comprise an elastomeric membrane, an open cell foam pad, one or more articulated plates, or a combination thereof. Cleaning of the lens of the viewing scope is effected by moving the lens between positions proximal of and distal to the cleaning element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.