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Multichannel syringe for use with a metering device

A metering device, multi-channel technology, used in measurement devices, laboratory containers, volume measurement, etc., to achieve the effects of small tolerance, low weight, and simple implementation

Active Publication Date: 2019-04-02
埃佩多夫欧洲公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Replacement of piston unit and cylinder unit is not set

Method used

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  • Multichannel syringe for use with a metering device
  • Multichannel syringe for use with a metering device
  • Multichannel syringe for use with a metering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] according to figure 1 The piston unit 1 has a drive rod 2 , a crossbar 3 at the lower end of the drive rod 2 and a plurality of injection pistons 4 protruding downwards from the crossbar 3 parallel to the drive rod 2 . In this example, the piston unit 1 comprises eight injection pistons 4 .

[0072] The drive rod 2 has a cross-shaped profile with ribs 5.1, 5.2, 5.3, 5.4. The driving rod 2 becomes thinner from bottom to top. The ribs 5.1, 5.2 have a trapezoidal cross-section constant in the longitudinal direction. The ribs 5 . 3 , 5 . 4 of the T-shaped profile pointing parallel to the crossbar likewise have a trapezoidal cross-section whose height decreases upwards.

[0073] A piston holder 6 in the form of a cylindrical coupling section is provided at the upper end of the drive rod 2 . The coupling section 6 has a plurality of circumferential ribs 7 on its periphery for secure clamping by a metering device. According to another embodiment, the coupling section 6 ha...

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PUM

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Abstract

The invention relates to a multichannel syringe for use with a metering device for metering liquids in a laboratory with a first holding device for a barrel holding device of a syringe barrel and an axially movable second holding device for a plunger holding device of a syringe plunger, comprising a single-part plunger unit made of plastic, said plunger unit having a drive rod comprising the plunger holding device on the upper end, a cross member which is oriented perpendicularly to the drive rod on the lower end of the drive rod, and multiple syringe plungers which protrude downwards from thecross member and which are parallel to the drive rod; a single-part barrel unit made of plastic, said barrel unit comprising a support and at least one row of syringe barrels which are arranged adjacently in a parallel manner, which protrude downwards from the support, and each of which has lower syringe openings, upper syringe openings, and a running region in the interior for one syringe plunger of the plunger unit. Each syringe plunger engages into a syringe barrel through an upper syringe opening and is sealingly guided in the running region, and the barrel holding device is arranged above the syringe barrel and is connected to the support.

Description

technical field [0001] The invention relates to a multi-channel syringe for use with a metering device for metering liquids in a laboratory, said multi-channel syringe having a first holding device with a barrel holding device for a syringe barrel and an axially displaceable second retainer for the plunger retainer of the injection plunger. Background technique [0002] Pipettes are used especially in medical, biological and chemical laboratories for dosing liquids. Air-cushion pipettes have an integrated displacement device for the air and at least one holder for the pipette tip. The displacement device usually consists of a cylinder with a movable piston guided sealingly in the cylinder. When the pipette tip is held on the support, it is communicatively connected to the displacement device. The air cushion can be moved by means of the displacement device, so that liquid can be sucked into the pipette tip through the tip opening and liquid can be expelled. After use, th...

Claims

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Application Information

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IPC IPC(8): G01F11/02B01L3/02G01N35/10
CPCB01L3/0217B01L3/0275G01F11/027G01N35/1065
Inventor B·赖希穆特
Owner 埃佩多夫欧洲公司