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Needle-insertion device

A technology of cylindrical part and skin, applied in blood sampling device, blood characterization device, etc., can solve the problem of large skin damage caused by puncture

Inactive Publication Date: 2009-04-01
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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  • Needle-insertion device
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  • Needle-insertion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

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

[0041] The case 1 has a form in which two substantially cylindrical sleeves 10A, 10B are connected, and is covered by an external case 80 in the middle and upper portions in the N1, N2 directions in the figure. The portion near the front end of the casing 1 is a cylindrical portion 12 formed with an opening 11 , and when the puncturing 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 portion 10a and a second portion 10b. The first part 10a supports the movable body 50 of the detection...

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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 puncturing device for piercing the skin with a needle when collecting body fluid or tissue such as blood. Background technique [0002] When treating a diabetic patient, blood sampled from the patient is used as a sample to measure the glucose concentration, and a treatment policy or the like is determined based on the measured value. As the prior art of the piercing device used for this purpose, there is the Figure 18A The technology shown in (For example, refer to Japanese Patent Application Laid-Open No. 2001-346781.) [0003] In the puncturing device 9 shown in this figure, a lancet 91 is arranged so that it can move forward in a casing having a cylindrical portion 90 with an open front end. The cylindrical part 90 has a flange part 93 having a small-diameter hole part 92 formed in the center, and a glucose concentration measuring device 94 is disposed so as to partially protrude from the hole part 92 . In addi...

Claims

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Application Information

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