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Pricking device comprising a torsional spring

A torsion spring and base technology, applied in the field of blood collection devices

Active Publication Date: 2010-02-10
GERRESHEIMER REGENSBURG GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the action of the needle along the circular path, such a configuration is painful to the patient during use, since, due to the necessary circular action, the needle remains in the patient's skin for a relatively long time, and Undesirably large incisions may be made on the skin surface due to circular motions

Method used

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  • Pricking device comprising a torsional spring
  • Pricking device comprising a torsional spring
  • Pricking device comprising a torsional spring

Examples

Experimental program
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Embodiment Construction

[0030] Figure 1a A perspective view of the blood sampling device according to the first embodiment of the present invention in an assembled state is shown. The blood collection device includes a base body (main body) 1, 2, which consists of two parts and has an outlet arranged on the lower side to expose the needle tip.

[0031] exist Figure 1b shows the lancing device according to the first embodiment of the present invention in a disassembled state. From this figure it is clear that the housing 1 with the outlet 3 accommodates another base (body) part 2 which can be pushed in at the top. The base (body) part 2 in turn accommodates a needle holding unit 4 which is preferably plate-shaped and movable within the base (body) part 2 .

[0032] The needle holding unit 4 has a needle 5 mounted therein, preferably the needle 5 is always surrounded by the needle holding unit through the injection molding process.

[0033] In this case the needle 5 is provided at its tip with a s...

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Abstract

The invention relates to a pricking device for taking blood for medical tests. Said pricking device comprises a base (1, 2; 23, 22), at least one needle (5; 25) which is disposed therein and of whicha pointed end (5a; 25a) can be deployed, and a manual actuating element (8, 28) for inducing a sliding movement of the needle (5, 25). A control cam section (7, 27) and a torsional spring (10; 30) that engages into the control cam section (7; 27) are arranged in a needle retaining element (4, 24), which at least partly embraces the needle (5; 25), in order to transform a radial movement of ends (10a, 10b; 30a, 30b) of the torsional spring (10, 30) into a forward and / or backward sliding movement (13b, 13c; 33b, 33c) of the needle (5; 25).

Description

technical field [0001] The present invention relates to a blood collection device for taking blood in medical tests, according to the preamble of claim 1, which comprises a base (main body), at least one needle with a needle point arranged therein that can extend outwards and Manual actuation unit for releasing the displacement action of the needle. Background technique [0002] Needle-type lancing devices for taking blood from the superficial layer of the skin for the purpose of taking blood are known in various forms. Typically, such lancing devices require clinical specialists to use the lancing devices in a substantially painless manner. [0003] DE 196 17 000 C1 discloses a device comprising a needle for blood withdrawal, wherein the hollow cannula is designed with a sharpened blade. Such devices are generally not single-use and are generally not painless during use due to the shape of the needles. [0004] A system for drawing blood is known from DE 44 43 276 A1, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/151
CPCA61B5/1411A61B5/150022A61B5/150412A61B5/150465A61B5/150511A61B5/150549A61B5/150618A61B5/150717A61B5/150885A61B5/15113A61B5/15117A61B5/15128A61B5/15144
Inventor 罗伯特·韦塞尔
Owner GERRESHEIMER REGENSBURG GMBH
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