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System for sampling pipette tip ejection with improved ergonomics

A pipette and pop-up device technology, which is applied in the field of laboratory pipettes, mixing pipettes, mechanical pipettes, and liquid transfer pipettes, can solve the problems of collection cone detachment and ensure firmness performance, improved ergonomics, and comfortable use

Active Publication Date: 2022-06-03
GILSON SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the operator may have to exert considerable force on the eject knob to disengage the collection cone

Method used

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  • System for sampling pipette tip ejection with improved ergonomics
  • System for sampling pipette tip ejection with improved ergonomics
  • System for sampling pipette tip ejection with improved ergonomics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Referring to Figure 1, there is shown a mechanical collection pipette 1 comprising a cone ejection system 2 according to the present invention. pipetting

[0046] The ejection system 2 also includes a cone-shaped ejection knob 25 which is also controlled by the thumb 4 of the operator. Pop Knob 25 by with

[0047] Thus, as depicted in Figure 2, when the ejector knob 25 is actuated downward by the operator's thumb, the knob causes the

[0048] Referring now to Figures 3 and 4, the ejection system 2 is shown in more detail. Figure 3 shows inactive idle

[0049] In these figures, it is first to be noted that the eject knob 25 is movably mounted on the rail 42 of the stationary assembly 44

[0050] In addition to the lower portion 14, the ejection device 24 also includes an upper portion 21 housed in the handle 6. of the upper part

[0051] One of the features of the present invention resides in the presence of a force reducing element within the ejection system 2, namely th...

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PUM

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Abstract

The invention relates to a system (2) for ejecting tips of sampling pipettes, comprising: a button (25) for ejecting tips intended to be moved in translation by the operator's thumb (4); tip ejection means (24); and resilient return means (32) for returning the tip ejection means (24) to the raised position. According to the invention, the system also includes a lever (40) for controlling the ejection device (24), the lever comprising: a first end (40a) intended to fit onto a part (46) of a pipette; two ends (40b), cooperating with the eject button (25) so as to be acted upon by the eject button; and a middle part (40c) for actuating the eject means (24).

Description

System for sampling pipette ejection tips with improved ergonomics technical field The present invention relates to a collar of a sampling pipette for sampling and dispensing liquids in a container or the like. Domain, also known as laboratory pipette or liquid transfer pipette. The present invention relates to any type of pipette of single-channel or multi-channel type, whether mechanical, electronic Still mixed. [0003] The pipettes of which the present invention is more preferably concerned are manually actuated mechanical pipettes. These pipettes collect in liquids and dispensing operations should be held by the operator's hand. These operations are applied via the operator's thumb on the control knob This is accomplished by actuating pressure to move the knob. As discussed above, the present invention may also relate to mixing pipettes or So-called electronic pipettes, in which, due to the pressure exerted on the control knob, are passed through a motor Re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/02
CPCB01L3/0217B01L3/0279B01L2200/087
Inventor H·马尔瓦森
Owner GILSON SAS