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Needle-insertion device

A cylindrical part and skin technology, which can be used in blood sampling devices, blood characterization devices, etc., can solve the problems of large skin damage caused by puncture

Inactive Publication Date: 2006-01-25
ARKRAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, if the puncture depth is too deep, the puncture will cause great damage to the skin, which will cause great pain to the user.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] figure 1 as well as figure 2 Shown is the puncture device according to the first embodiment of the present invention. Such as figure 1 As shown, the puncture device A1 has: a housing 1, a lancet holder 2A for holding the lancet 2, a mounting part 4 for mounting the sensor holder 3, a detection switch 5, a pressure sensor 53, a pump 6, a control Section 7, and other components described later.

[0041] The housing 1 has a form in which two approximately cylindrical sleeves 10A and 10B are connected, and the middle part and the upper part in the N1 and N2 directions in the figure are covered by an outer box 80. The portion near the front end of the housing 1 is a cylindrical portion 12 formed with an opening 11, and when the puncture device A1 is used, the front end of the cylindrical portion 12 comes into contact with the skin Sk of the human body.

[0042] The sleeve 10A has a first part 10a and a second part 10b. The first part 10a supports the movable body 50 of the de...

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PUM

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Abstract

This invention relates to a lancing apparatus (A 1 ) used for inserting an insertion element ( 21 ) into a human skin (Sk) for sampling a body fluid. The lancing apparatus (A 1 ) includes a housing ( 1 ) with a cylindrical portion ( 12 ) brought into contact with the skin (Sk), a negative pressure generator ( 6 ) that generates a negative pressure inside the cylindrical portion ( 12 ) to cause the skin (Sk) to swell upward, and a detector ( 5 ) that detects that the skin (Sk) has been raised to a predetermined height inside the cylindrical portion ( 12 ).

Description

Technical field [0001] The present invention relates to a puncture device for puncturing the skin with a needle when collecting body fluids or tissues such as blood. Background technique [0002] In the treatment of diabetic patients, blood taken from the patient is used as a sample to measure the glucose concentration, and based on the measured value to determine the treatment policy and the like. As a prior art of a puncture device used for this purpose, there is a technique shown in FIG. 18A of this patent application (for example, refer to Japanese Patent Application Laid-Open No. 2001-346781). [0003] The puncture device 9 shown in the figure is provided with a lancet 91 in a housing having a cylindrical portion 90 with an opening at the front end so as to be able to advance. The cylindrical portion 90 has a structure in which a flange portion 93 having a small-diameter hole 92 is formed in the center, and a glucose concentration measuring device 94 is disposed in the hole ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/145A61B5/15
Inventor 松本大辅小室秀文坂田哲也
Owner ARKRAY INC