Puncture needle and lancet having it

A puncture needle and ellipse technology, applied in medical science, diagnosis, catheter, etc., can solve the problem that the mechanism of pain relief has not been elucidated, and achieve the effect of relieving tension, inhibiting pain, and reducing pain

Inactive Publication Date: 2009-06-10
ASAHI POLYSLIDER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, Patent Document 1 is proposed for the purpose of relieving pain during puncture, but the mechanism of relieving pain with the disclosed puncture needle has not been elucidated at all.

Method used

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  • Puncture needle and lancet having it
  • Puncture needle and lancet having it
  • Puncture needle and lancet having it

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The present invention will be described below. The "front" and "rear" directions considered in this specification are based on the direction in which the lancet using the puncture needle is fired toward the specified location, that is, the puncture needle is directed toward the specified location during puncture. The direction of movement is the reference. Therefore, when referring to the direction in which the puncture needle moves, the terms "forward", "forward" or "forward" are used, and when referring to the opposite direction, the terms "rear" and "backward" are used. Or the term "rear". The directions called "front" and "rear" correspond to the axial direction of the puncture needle, that is, the direction in which the puncture needle extends, and the term "上" is used as a term that refers to the direction toward the apex 20 based on this direction. ", use "下" as a term that means the opposite direction. That is, in such as figure 1 As shown, when the puncture needle...

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Abstract

There is provided a pricking needle which causes less pain upon the pricking operation. The front end portion of the pricking needle is defined by: (1) a rear portion of an ellipse which is formed by cutting through the cylindrical member obliquely ahead from its backward; (2) an isosceles triangle portion that has a central portion of a front edge of the rear portion of the ellipse as a base, that extends forward and obliquely downward from the central portion, and that extends more obliquely downward than a spreading direction of the rear portion of the ellipse; (3) a rightward inclined surface portion and a leftward inclined surface portion, each including an oblique side of the isosceles triangle portion, a side portion of the front edge of the rear portion of the ellipse and a line segment which connects a front apex of the isosceles triangle portion and a distal end of the pricking needle, and extending from the right oblique side of the isosceles triangle obliquely downward; and (4) a portion of a side face of the cylindrical member.

Description

Technical field [0001] The present invention relates to a needle used in a lancet for collecting body fluids, especially blood, and in particular to a puncture needle and a lancet provided with the lancet. Background technique [0002] In order to measure the glucose concentration in the blood, that is, to measure the blood sugar level, it is sometimes necessary to collect blood. In such blood collection, a sharp member such as a needle is used to puncture predetermined parts of the body, such as fingertips, earlobes, heels, etc., to injure such parts and cause bleeding. Various puncture devices are used in this blood collection. [0003] This kind of equipment is generally called a lancet, and uses metal needles of various thicknesses as the piercing member (that is, the piercing member). During the puncture, pain is actually associated with the puncture, and there is also a time when the mental tension such as the puncture increases the pain felt during the puncture. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/15A61B5/151
CPCA61B5/150282A61B5/150022A61B5/151A61B5/1411A61B5/150503A61B5/150427A61M5/3286Y10T29/49995A61B5/1405
Inventor 为贞祐二
Owner ASAHI POLYSLIDER CO LTD
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