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Instrument and system for producing a sample of a body liquid and for analysis thereof

An instrument, sample technology, applied in the field of instruments and systems for generating and analyzing bodily fluid samples with excellent reproducibility

Inactive Publication Date: 2010-03-17
F HOFFMANN LA ROCHE & CO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] Even though several of the systems discussed, especially the all-in-one blood collection and analysis system, provide improved results over earlier known devices, there are still substantial deficiencies

Method used

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  • Instrument and system for producing a sample of a body liquid and for analysis thereof
  • Instrument and system for producing a sample of a body liquid and for analysis thereof
  • Instrument and system for producing a sample of a body liquid and for analysis thereof

Examples

Experimental program
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Embodiment Construction

[0077] figure 1 A view of the pressure ring 1 is shown, on which a fingertip 2 is pressed with a force F. FIG. Due to this pressing force, the skin 3 bulges into the skin contact opening 4 defined by the pressure ring 1 , forming a target site bulge 6 .

[0078] The degree of the bulge of the target site, that is, the distance d between the plane of the pressure ring 1 and the apex of the bulge 6 of the target site, is affected by the size of the skin contact opening 4, the pressing force F and the viscoelastic properties of the skin. complex effects of many factors. These in turn depend on a variety of factors, including:

[0079] - the elasticity of the skin surface of a particular individual, which varies greatly according to age, sex, and the degree of manual work that particular individual typically performs;

[0080] - internal pressure in a finger or other body part, which depends, among other factors, on the state of health and physical activity of that particular i...

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PUM

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Abstract

Instrument for producing a sample of body liquid for analysis by piercing the skin with a lancing element (12) having a skin piercing tip. The instrument (11 ) has a housing (13) and a lancing drive (14) for driving a lancing element (12) connected thereto in a puncturing movement. A pressure ring (1 ) surrounds a skin contact opening (4) and is adapted for pressing against the skin such that theskin (3) bulges into the opening (4) for promoting expression of body fluid. The skin contact opening (4) has an opening area corresponding to a circle with a diameter of at least 3 mm and at most 8 mm, and the instrument comprises a pressing force control device (37) for controlling the pressing force between the pressure ring (1 ) and the skin (3) at the time of triggering the puncturing movement, to be at least 3 N and at most 8 N.

Description

technical field [0001] The present invention relates to taking a sample of body fluid to allow its analysis, ie to determine the concentration of an analyte therein. In particular, the present invention relates to an apparatus and system for producing a small sample of bodily fluid by piercing the skin of a subject (human or animal) using a disposable blood collection element having a skin-piercing tip adapted to create a small wound from which Take samples from. The body fluid is blood or interstitial fluid or a mixture thereof, depending on the skin site used and the depth of sampling. Background technique [0002] Skin-puncture based analysis is important in several areas of medical diagnosis and therapy. Of particular importance is the area of ​​diabetes treatment. It has been established that the serious long-term damage caused by diabetes can be avoided if a patient controls her or his blood sugar levels several times a day so that the required insulin injections ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/155A61B5/00
CPCA61B5/1455A61B5/157A61B5/1411A61B5/14532A61B5/150022A61B5/150183A61B5/150358A61B5/150389A61B5/150503A61B5/15113A61B5/15117A61B5/15128A61B5/1519A61B5/15194A61B5/00A61B5/1427
Inventor U·克拉默V·齐默W·罗德尔H·利斯特S-M·弗里C·霍劳夫P·帕特尔
Owner F HOFFMANN LA ROCHE & CO AG
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