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Even the Smallest Things Have an Impact on Ergonomics
Explore Life Science
Have you ever wondered why the control button of your manual pipette is as long as it is? Good control button ergonomics provides for a design which is as short as possible so that the thumb does not have a long working distance, yet as long as necessary so that good liquid level control is ensured. The working distance of the thumb is influenced by the length of the control button, the position of the hand rest on the handle and the handle thickness. You guessed it: the ergonomics of a pipette is surprisingly complex!
- does not have to work at sharp angles
- does not have to stretch too much
- is not subjected to high operating forces
- meets an operating control with a wide contact surface.
It is, therefore, clear that many factors interact in the case of a handheld device such as the pipette. If just one factor is not ergonomic, it may mean that the ergonomics of the other factors is no longer effective. Operation may then be regarded as unpleasant. Thus, for example, low operating forces may be felt as unpleasant if the contact surface of the thumb is too small because the pressure is not spread over a large area.
There are also factors beyond direct human-pipette interaction that play an important role. Contributing to cognitive ergonomics, the color coding of pipette and tip prevents incorrect operation. In terms of workflow ergonomics, the accessibility of information about the product is an important aspect. Accordingly, the operating manual should be easy to understand and available in as many languages as possible. Does the manufacturer provide information on decontamination or chemical resistance or do you need to spend a long time searching for it and thus interrupt your workflow?
Pipettes are the main tools in the laboratory. They should not only be characterized by a low weight or the ease of operation of individual elements, but they should excel in the totality of their ergonomic features. Read UserGuide 46 to find out more about how an ergonomic pipette should be constructed.