Misuse of Pipettes, How Much Damage?
It is well known that pipetting cycles include attaching a tip, aspirating a liquid, dispensing a liquid, and removing a tip. Modern pipettes are mostly gas piston pipettes. The principle of the pipette is that the piston moves through the telescopic movement of the spring to achieve aspiration and discharge.
Under the push of the piston, part of the air is exhausted, the liquid is sucked in by atmospheric pressure, and then the air is pushed out by the piston to discharge the liquid. When using the pipette, it is easy to control the speed and strength of pipetting when working with the spring’s stretchability. However, pipettes of this principle require a tight bond between the tip and the pipette, so the problem is coming!
In order to make the pipette tip connection stable, the user often needs to press the tip with a hand, and in the long run, it is easy to cause repeated hand damage. Not only that but because the force is too large, more force is needed when removing the tip. In the worst case, the tip must be manually removed, thereby increasing the risk of contamination.
Some customers will react to their own PCR experiments. During the experiment, a large amount of long-term pipetting work has caused a great burden on their hands and caused certain damage! In fact, this situation is not uncommon, but everyone has not noticed it.
As early as the end of the last century, researchers investigated pipette-related ergonomics and analyzed the use of pipettes between the upper limbs (hand, elbow, thumb, shoulder) and neck disease and relationship. The results of the study showed that the proportion of hand and elbow pain in the use of pipettes was higher than that of people who did not use pipettes.
Moreover, the time of using the pipette has a greater impact on upper limb disease, and the proportion of hand pain in a person who uses the pipette for a longer period of time is higher than that of those who use the pipette for a short time. The time of the liquid device increases, and the proportion of hand pain increases! Unexpectedly, when the pipette was used continuously for more than 60 minutes, the proportion of hand pain was almost 90%!
It can be seen that the use of pipettes does have a certain impact on our health. Therefore, we must not ignore it. In the process of using the pipette, the repeated damage caused by the thumb, fingers, and wrists, the damage caused by muscle, nerve and tendon pain caused by long-term repetitive movement and overuse is called repetition. Repetitive strain injury (RSI), or repetitive strain, muscle damage, repetitive movements. Pipetting has been identified as a source of aggravation of upper extremity pain symptoms, especially in the case of more than 300 hours of pipetting per year.
At present, the ideal solution is to combine the pipette and the tip into a specific sealing system, which ensures the repeatability of each seal, reduces the artificial force applied to the tip, and finally achieves the best-pipetting accuracy and precision.
In addition to the above-mentioned damage to the body, such an operation is also likely to cause wear of the tip of the pipette, making the combination of the tip and the tip of the gun more difficult! Different users’ exertion will have a negligible impact on the repeatability of the experiment!
Hawach provided single-channel pipettes and pipettes, such as Advanced Fully Autoclave Single-Channel Fixed Pipettes, Advanced Half Autoclave Single Channel Adjustable Pipettes, Advanced Fully Autoclave Single-Channel Adjustable Pipettes, Standard Single Channel Fixed Pipettes, Non-Sterile PP Pipette Tips.