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Pipette for actuating syringe

A technology of pipette and syringe, applied in the field of pipette

Inactive Publication Date: 2014-01-15
EPPENDORF AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this pipette, the expensive set-up costs are disadvantageous, but also the expensive outlay due to the adjustments that have to be made on the assembled pipette

Method used

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  • Pipette for actuating syringe
  • Pipette for actuating syringe
  • Pipette for actuating syringe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0078] according to figure 1 , the pipette 1 has a rod-shaped housing 2 in which the syringe 3 is held on the underside. The suction rod protrudes from the housing 2 on the side wall of the housing 2 and is located above the straight seam 4 . The activation button 8 of the rack and pawl control device protrudes above the other two slits 6 , 7 on the aforementioned side wall of the housing 2 . Above it, an indicator device in the form of an LCD display 9 is drilled into this side wall of the housing 2 . Portions of the dial 10 protrude from the opening adjacent the side wall.

[0079] according to figure 2 , The syringe 3 has a cylinder 11 and a piston 12 movably disposed therein. The cylinder 11 has a conical portion 13 with a hole 14 on the bottom for the passage of fluid, above which is a cylindrical barrel portion 15 in which the piston 12 can move. The cylinder block 11 has a first mount part 16 with a circumferential flange 17 at the top. A piston rod 18 protrudes ...

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PUM

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Abstract

A pipette for actuating a syringe is provided with a bar-shaped housing; a first fixture; a first fixture body; a first means for displacing the fixture body in the housing away from the first fixture; a second means for displacing the fixture body towards the first fixture in steps; an actuating element for performing single steps; a tooth bar connected to the fixture; a pawl pivotally mounted on the actuating element in the housing; an adjusting element adjustable from the outside of the housing for adjusting the step size of the steps, a covering movably arranged on the tooth bar at the side of the pawl; a coupling element arranged on the covering, which is coupled to the adjusting element in order to transfer a setting of the adjusting element to the covering; wherein the covering comprises a first covering part on which the coupling element is arranged, and a second covering part on which the incident edge is formed, and means for positioning arranged on the covering, which fix the first and the second covering part in an adjusted position relative to each other.

Description

technical field [0001] The invention relates to pipettes for handling syringes. Background technique [0002] The pipettes discussed here for manipulating syringes are used to expel liquid drawn into the syringe in several steps. They are also called dispensers or repeating pipettes. At the lower end of the rod-shaped housing these pipettes have a fixing for the flange of the cylinder of the syringe and in the housing a movable fixing with the upper end part of the piston rod for the piston of the syringe piston mounts. Together with the flange and the end of the piston rod, the syringe can be inserted through the axially oriented opening of the holding body. The flange and the end are held in the fixture by a removable holder configured, for example, as a spring-tensioned grab bar. Further, the syringe has means for moving the fixed body, which allows the piston to be pulled partly out of the cylinder to draw liquid into the syringe, and pushed gradually into the cylind...

Claims

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Application Information

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IPC IPC(8): B01L3/02
CPCB01L3/0234B01L3/0286B01L2200/025B01L3/0279
Inventor H·贝尔加特P·莫利托B·赖希穆特J·扎特勒J·维尔默
Owner EPPENDORF AG