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Injection neddle assembly and medicine injection device

a technology of injection needle and needle tube, which is applied in the direction of intravenous devices, infusion needles, other medical devices, etc., can solve the problems of air exhausted in the syringe, risk of medicine being held in the space between the skin contact portion and the needle tube, and the medicine filled in the syringe may also spill from the needle tube, so as to achieve convenient draining

Inactive Publication Date: 2014-02-20
TERUMO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This disclosure provides an injection needle assembly and medicine injection device that can easily drain any medicine that has been spilled during air removal. The device has a fluid-draining portion in the skin contact portion of the needle hub, which allows the user to easily drain the medicine before administering it. This prevents the medicine from contacting the user and ensures the process is safe and efficient.

Problems solved by technology

Hence, when performing the air removal procedure using such a configured injection needle assembly, not only is the air contained in the syringe exhausted, but the medicine filled in the syringe may also spill from the needle tube and there is a risk of the medicine being held in the space between the skin contact portion and the needle tube.
A problem has thus arisen because the medicine staying in the space between the skin contact portion and the needle tube contacts or attaches to the skin of a user, and causes discomfort to the user when administering the medicine in the injection needle.

Method used

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  • Injection neddle assembly and medicine injection device
  • Injection neddle assembly and medicine injection device
  • Injection neddle assembly and medicine injection device

Examples

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Embodiment Construction

[0017]Exemplary embodiments of an injection needle assembly and a medicine injection device according to the disclosure herein are described below with reference to FIGS. 1 through 5. It is noted that the same reference numerals are attached to a common components in the accompanying figures. It is further noted that the disclosure is in no way restrained by the following exemplary embodiments.

[0018]An injection needle assembly and a medicine injection device according to a first exemplary embodiment of the disclosure are described with reference to FIG. 1 and FIG. 2.

[0019]As shown in FIG. 1, a medicine injection device 1 is used for injecting a medicine into an upper skin layer by puncturing a skin surface with a needle tip. The medicine injection device 1 includes an injection needle assembly 2, and a syringe 3 to which the injection needle assembly 2 is detachably attached.

[0020]The skin includes three regions, that is, epidermis, dermis and subcutis. The epidermis is a layer of ...

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Abstract

A needle tube having a needle tip for puncturing skin; a needle hub; and a fluid-draining portion for enabling draining of a medicine. The needle hub includes: a retention part (first member) for retaining the needle tube; an insertion part into which the output portion of a syringe is inserted; and a flange-like skin contact portion that is disposed in a manner so as to cover an area surrounding the needle tube and makes contact with and / or faces the skin when a living body is punctured with the needle tube. The fluid-draining portion is disposed in the skin contact portion of the needle hub and enables a user to drain the medicine that has spilled when removing air and is held in the skin contact portion.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application claims priority as a continuation application under 35 U.S.C. §120 to International Application No. PCT / JP2012 / 055093 filed on Feb. 29, 2012, designating the U.S., and which claims priority to Japanese Application No. 2011-101225 filed on Apr. 28, 2011, the entire content of both of which is incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to an injection needle assembly and a medicine injection device, which have a skin contact portion that is disposed to cover the area surrounding a needle tube and which makes contact with and / or faces the skin.BACKGROUND ART[0003]Conventionally, an injection needle assembly is provided with a skin contact portion that allows adjustment of the depth of a needle puncturing in order to stably puncture the skin. Such a configuration makes it possible to reliably penetrate the injection needle to a target depth. Further, such capability of stable puncturi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M5/32A61M5/34
CPCA61M5/345A61M5/3293A61M5/3287A61M5/329A61M5/347A61M5/425A61M5/46A61M2205/0222A61M2205/0238
Inventor IWASE, YOICHIROOGAWA, JUNICHITACHIKAWA, KOUICHI
Owner TERUMO KK
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