Friday, November 19, 2010

MAGNIFICATION IN SURGERY



OPERATING MICROSCOPES

WHAT ARE THE USES OF MAGNIFICATION?
The use of controlled magnification has been a recent addition to the instrument list.

Loupes and magnifying glasses have been used in the past, but operating microscopes have improved the clarity ease of use, the depth of focus, and the lighting of the site of the operation.
Complicated two layer suture on small structures
- can be performed quickly,
- accurately and in comfort
- With no strain on the neck muscles.
Operating microscope can be:
1. Floor Mounted Fig 6.1
2. Ceiling Mounted Fig 6.2

What are the Features of an Operating Microscope?
They can be;
* Hand operation or foot operation microscopes for focus
* Automatic focuses and zooms
* Can have Assistant Microscope view arm so he can view and assist
* Camera attachment arm for recording procedures.

WHERE IS a microscope USED?

The operating microscope is used for two purposes:
- The first is to provide a magnified view of small structures
(Small vessel and nerve anastmosis).
- The second is to provide a magnified view of larger
Structure upon which more precise surgical procedure needs
To be performed (Disc surgery).

Explain what ARE THE features OF OPERATING MICROSCOPES?

There are two basic types of operating microscope, with
Several variations, depending upon the surgical specialty
Involved.
- The first is the manual type, featuring hand controlled
Fixed magnification stepwise(x6x9...) and control knobs for
Focus Fig. 6.3
- The second type is the zoom system, this has the advantage
Of offering continuous magnification through the whole range
Of the magnification of the system including focus through
Foot controls.
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