INJECTION NEDDLE ASSEMBLY AND MEDICINE INJECTION DEVICE
First Claim
1. An injection needle assembly, comprising:
- a needle tube having a needle tip for puncturing the skin;
a needle hub including;
a front end part that retains the needle tube and from which the needle tip of the needle tube protrudes;
an insertion part into which an output portion of a syringe is inserted; and
a flange-like skin contact portion that is disposed so as to surround the front end part and that makes contact with and/or faces the skin when a living body is punctured with the needle tube; and
a fluid-draining portion that is disposed in the skin contact portion of the needle hub and enables draining of a medicine staying in the skin contact portion.
1 Assignment
0 Petitions
Accused Products
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.
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Citations
15 Claims
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1. An injection needle assembly, comprising:
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a needle tube having a needle tip for puncturing the skin; a needle hub including;
a front end part that retains the needle tube and from which the needle tip of the needle tube protrudes;
an insertion part into which an output portion of a syringe is inserted; and
a flange-like skin contact portion that is disposed so as to surround the front end part and that makes contact with and/or faces the skin when a living body is punctured with the needle tube; anda fluid-draining portion that is disposed in the skin contact portion of the needle hub and enables draining of a medicine staying in the skin contact portion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medicine injection device, comprising:
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a syringe having an output portion; a needle tube having a needle tip for puncturing the skin; a needle hub including;
a retention part for retaining the needle tube;
an insertion part into which an output portion of the 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 the living body is punctured with the needle tube; anda fluid-draining portion that is disposed in the skin contact portion of the needle hub and enables draining of a medicine staying in the skin contact portion. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of using a medicine injection device comprising a syringe filled with a medicine and having an output portion;
- a needle tube having a needle tip for puncturing the skin;
a needle hub including a retention part for retaining the needle tube and an insertion part into which an output portion of the syringe is inserted;
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 the living body is punctured with the needle tube; and
a fluid-draining portion that is disposed in the skin contact portion of the needle hub, said method comprising;removing air from the medicine injection device prior to injection of the medicine, whereby medicine spilled from the needle tip is caught in the fluid-draining portion; draining the spilled medicine in the fluid-draining portion by tipping the medicine injection device; positioning the skin contact portion adjacent the skin; puncturing the skin with the needle tip; and injecting medicine from the needle tip into the skin.
- a needle tube having a needle tip for puncturing the skin;
Specification