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Blood-collection device

A collection tube and guide sleeve technology, applied in blood sampling devices, packaging, packaged food, etc., can solve problems such as increasing production costs, and achieve the effect of labor-saving assembly and disassembly

Inactive Publication Date: 2005-04-13
SARSTEDT AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This rotational locking ensures a more reliable fixation of the combined parts of the lancing device, but its production costs are increased

Method used

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  • Blood-collection device

Examples

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Embodiment Construction

[0019] The blood collection device shown in Figures 1 and 2 comprises a blood collection tube 1 with a cover 7 or 107 and a guide sleeve 2 that is shown as a Luer cone in all embodiments, and a rubber valve 3 surrounded by a rubber valve 3 is housed in the guide sleeve, with The needle head 5 of pointed stabbing blade 4. In another variant of the guide sleeve, there is a connection piece or the front of the double-sided needle on the side facing away from the shield. The guide sleeve 2 consists of rigidly deformable hard plastic material. The collection tube 1 is closed above with a cap 9 having a cylindrical cap 7 . In an exemplary embodiment, the hood distributes on its outer circumference or its hood wall a plurality of holders 8 , here in the form of longitudinal ribs, extending approximately from the middle of the hood length to the hood bottom. For example, the holder can also be selected to have protuberances or similar shapes arranged close to one another, or the out...

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Abstract

The invention relates to a device for receiving bodily fluids, comprising a collection tube (1), whose front end is equipped with a domed section (7) with a pierceable stopper for an attachable guide sleeve (2), which on the side facing the domed section has a cannula (5) equipped with a rubber valve (3) and on the side facing away from the domed section has a connecting piece or the front section of a double cannula. The domed section (7) has a zone that can be deformed inwards and the exterior wall of the domed section in said zone and / or the interior wall of the guide sleeve (2) in a complementary zone have or has a projecting contour in relation to the remaining exterior zone of the domed section (7) and / or in relation to the remaining interior zone of the guide sleeve (2), said contour deforming the wall of the domed section (7) radially inwards, when the deformation-resistant guide sleeve (2) is attached. The domed section and the guide sleeve form in their combined usage position a non-positive fit, whose retaining force is greater than restoring force of the rubber valve (3).

Description

technical field [0001] The invention relates to a body fluid collection device with a thin tube carrying a cap at its front end with a pierceable stopper for a guide sleeve that can be placed over the cap, the guide sleeve having a Needle with rubber valve, with connector on the face away from the shield or the front of a double-sided needle. Background technique [0002] Such a device is required whether blood is taken from a blood vessel or from a blood donation bag or, for example, a urine sample is taken from a collection container. The difficulty that arises in this case is that, when assembling or putting the guide over the shield, the accordion-like constricting rubber valve surrounding or enveloping the needle exerts a spring force and force that counteracts the retention force between the guide and shield. Restoration force, which can cause the guide sleeve of the shroud to fall off the cap. Countermeasures must be taken to avoid this problem. [0003] In the blo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/154A61B5/15A61J1/20
CPCA61B5/15003A61B5/150259A61B5/150389A61B5/150503A61B5/150572A61B5/154A61B5/150351
Inventor W·萨斯特德特
Owner SARSTEDT AG & CO KG
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