Ergonomics
The design of HTL pipettes bases on decades of experience
and reflects our deep understanding of end users needs and
preferences. Within the years HTL representatives have paid
hundreds of visits to all kinds of laboratories, on every
continent in search for the most optimal characteristics of
the manual liquid handling tools. This never ending research
work of our dedicated distributors and our marketing crew
allows us to find an ideal equilibrium between pipette
weight, materials applied, forces necessary for smooth but
precise pipetting as well as the pipette handle shape.
Extensive pipetting is a hard physical work which in some
extreme cases may cause Repatitive Strain Injuries (RSI).
While crafting our pipettes we made sure that their
properties give the user the sensation of comfortable work
with the most popular pipettes on the market, but at the
same time they minimize strain and potential risk of RSI.
The most important pro ergonomic features of HTL
pipetting systems are:
Smooth Pipetting
The pipetting forces of all HTL pipettes belong to the
lowest in the industry. Our research work of the last 3
years was aimed in particular at pipetting force reduction.
The newest models of our pipettes (DISCOVERY+ Series, LAB MATE+, MULTI MATE+ and CLINIPET+) feature low tension springs as
well as smoothly running plunger sealing system resulting in
effortless pushbutton operation at both pipetting and
blowout stages.
DISCOVERY+ / LAB MATE+/ Brand G / Brand E / Brand F
200µl pipette and blowout force in KG of HTL and other
popular pipettes.
Handles Designed to Fit Every Palm
HTL LAB MATE+ pipettes are renowned for
their convenience and the sensation of the "familiar
feel". While the pipette feels in the hand as the most popular
pipettes on the market it offers wide finger support
allowing for convenient hanging of the pipette on the index
finger and relaxed grip. The weight of the LAB MATES (lower
than of the popular pipettes) gives the laboratory
professional an optimal balance between low strain and
secure pipette handling.
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Anti - squeeze ejector button of DISCOVERY+
pipettes |
The newest DISCOVERY+ Series Pipettes inherit all
benefits of the LAB MATES, offering additionally slimmer
pipette handle, fitting even for the smallest palms as well
as new pipette and ejctor pushbuttons. The diameters of the
pushbuttons, together with their smoothly shaped edges
ensure comfortable handling regardless of the thumb length
and prevent squeezing the skin or the glove in between the
pushbutton and pipette handle.
The hollowed finger rest of the DISCOVERIES, together
with their slim handle were designed to get rid of spare
grams of plastic which can mean so much after hours of
intense pipetting.
The fixed volume CLINIPET+ pipettes were designed
exclusively as the fixed volume
Pipettes. Their handles carry only the components necessary
for accurate work of the fixed volume pipette, thus they are
slimmer and lighter than most fixed volume pipettes of other
manufacturers. The CLINIPET pipettes are equipped with a
unique tip ejector button. The ejection is performed by
sliding the button to the left or right. This effortless
movement offers relief to the tendons of the thumb worn out
during ejection of the tips with other standard pipettes.
Low Tip Ejection Force
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Retrievable shafts in DISCOVERY+ Multichannel
and CLINIPET pipettes |
HTL pipettes are equipped
 with a number of sustems aimed
at reducing the force of tip ejection.
The revolutionary system applied by HTL for reduction of
the tip sealing and ejection force bases on the concept of
retrievable shafts and cones. During the sealing of the tip
on the pipette the pipette is being pressed against the rack
of the tips. When the pressing force applied to the pipette
is sufficient for secure sealing the shaft starts to
retrieve inside of the pipette body, preventing tip jamming.
Thanks to this unique, patented system the tip is being
sealed with the minimal force and the force necessary for
tip ejection is respectively small. The system of
retrievable shafts is applied in DISCOVERY+ Multichannel
pipettes as well as CLINIPET+ fixed volume pipettes.
The system of precise setting of the tip ejector stroke
in other models of
HTL pipettes allows to eject the tip with minimal effort and
only after the
Minimal movement of the thumb on the ejector pushbutton.
Convenient Volume Seting System
 While designing the volume setting system in our variable
volume single channel and multichannel pipettes we wanted to
make sure that the location of our volume setting knob is
proper for convenient one handle operation and that the knob
rotates smoothly allowing for precise volume adjustment. The
volume setting knob in the LAB MATE+, MULTI MATE+ and V3
SERIES pipettes can be turned with very small force applied
by thumb and index finger. DISCOVERY+ Series pipettes feature dual volume setting
system. Pipette volume can be set precisely with one hand,
by the turn of the volume setting knob. The pushbutton can
be used for fast rewinding of the volume counter. The top
part of the button is rotational to prevent accidental
volume change during pipetting.
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Knob volume setting |
Pushbutton volume setting |
Rotational pushbutton |
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