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Blood withdrawal device

A technology of generating device and fixing device, which is applied in the direction of blood sampling device, needle, sensor, etc., can solve the problem that the pain cannot be completely eliminated, and achieve the effect of eliminating pain

Inactive Publication Date: 2016-06-29
P·勒尔 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But still can't completely eliminate the pain

Method used

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Examples

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Embodiment Construction

[0056] figure 1 Shown is a blood collection device 10 according to the present invention, which includes a medical solution 12 , a microneedle field 14 and a negative pressure generating device 16 . The medicinal solution 12 has, for example, a volume V of less than 75 microliters, especially less than 50 microliters 12 . In the present case there is 25 microliters of the drug solution. The medicinal solution contains, for example, a platelet aggregation inhibitor in the form of heparin and / or an analgesic such as 1% mepivacaine (Meavirin). However, other local anesthetics may also be used.

[0057] The medical fluid is arranged in a container 18 which in the present case also serves as a blood container. However, the medicinal fluid 12 can also be arranged in a separate medicinal fluid container which does not simultaneously form a blood container.

[0058] The microneedle field 14 comprises a plurality of microneedles 20.1, 20.2, . In this example there are a total of ...

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Abstract

The invention relates to a blood withdrawal device (10) having an active liquid (12) containing a platelet aggregation inhibitor, a microneedle patch (14) having a plurality of microneedles (20), wherein a plurality of microneedles (20) is configured for dispensing the active liquid (12) into the skin (34) of a patient, and comprising a negative pressure generating device (16) connected to a plurality of microneedles (20) such that blood (46) can be drawn from the skin (34) by means of the microneedles (20). According to the invention the active liquid (12) contains a pain killer, the active liquid (12) is arranged in the blood reservoir (18), and the negative pressure generating device (16) is connected to the blood reservoir (18) such that by generating an excess pressure in the blood reservoir (18), the active liquid (12) can be dispensed by way of microneedles (20), and by generating a negative pressure, blood (46) can be drawn into the blood reservoir (18).

Description

technical field [0001] The invention relates to a lancing device according to the preamble of claim 1 . Background technique [0002] In many cases it is necessary to draw blood from a patient, which can be a human patient or an animal. Usually a vein is punctured and blood drawn for this purpose, or a wound is pierced with a needle, such as a fingertip, so that the blood flows outwardly out of a capillary, which is then collected. This method is used, for example, by diabetics who need to regularly check their blood sugar levels. [0003] The disadvantage of phlebotomy is that it is painful and should only be performed by trained medical personnel to avoid major trauma. A disadvantage of sticking eg a fingertip is that only a small amount of blood is obtained which can also be contaminated by contact with the skin surface. Also, on the downside, many people are afraid to add bleeding wounds to themselves. [0004] A blood sampling device of the same type is disclosed by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/15A61B5/157A61M5/158A61K9/00A61M37/00A61M5/142A61B5/151
CPCA61B5/150022A61B5/150099A61B5/150175A61B5/150221A61B5/150389A61B5/150755A61B5/150946A61B5/150969A61B5/15111A61B5/15142A61B5/157A61M37/0015A61M2037/0023A61M2037/003A61K45/06A61K31/445A61K31/727A61B5/150984A61K2300/00A61B5/150106A61B5/150748A61B5/151
Inventor P·勒尔J·费特尔B·席尔沃特
Owner P·勒尔
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