Injection needle assembly and drug injection device
First Claim
Patent Images
1. An injection needle assembly comprising:
- a needle tube, 26-33 G in size, having a needle tip capable of puncturing a living body and a bevel length of 0.5-1.4 mm so as to be placed in a skin upper layer;
a hub for holding the needle tube;
a stabilizer formed in a tubular shape surrounding the circumference of the needle tube and having an end face that contacts a skin of the living body when puncturing the living body with the needle tube; and
a guide portion provided on the stabilizer for guiding, by being contacted with the skin, a pressing parameter applied from the needle tube and the stabilizer to the living body when puncturing the living body with the needle tube.
1 Assignment
0 Petitions
Accused Products
Abstract
To securely position a needle tip and a blade face of a needle tube inserted into the skin in a predetermined site of a living body, such as the upper layer of skin, an injection needle assembly includes a needle tube having a needle tip capable of puncturing a living body, a hub holding the needle tube, a stabilizer, and a guide portion. The stabilizer is formed in a tubular shape surrounding the circumference of the needle tube, and an end face is pressed against the skin, and thereby a raised portion of the skin is formed in a tube hole. The guide portion is arranged on the stabilizer, and is adapted to recognize a press-in distance y of the stabilizer to the skin.
19 Citations
22 Claims
-
1. An injection needle assembly comprising:
-
a needle tube, 26-33 G in size, having a needle tip capable of puncturing a living body and a bevel length of 0.5-1.4 mm so as to be placed in a skin upper layer; a hub for holding the needle tube; a stabilizer formed in a tubular shape surrounding the circumference of the needle tube and having an end face that contacts a skin of the living body when puncturing the living body with the needle tube; and a guide portion provided on the stabilizer for guiding, by being contacted with the skin, a pressing parameter applied from the needle tube and the stabilizer to the living body when puncturing the living body with the needle tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A drug injection device comprising:
-
a needle tube, 26-33 G in size, having a needle tip capable of puncturing a living body and a bevel length of 0.5-1.4 mm so as to be placed in a skin upper layer; a hub for holding the needle tube; a syringe connected to the hub; a stabilizer formed in a tubular shape surrounding the circumference of the needle tube and having an end face that contacts a skin of the living body when puncturing the living body with the needle tube; and a guide portion provided on the stabilizer for guiding, by being contacted with the skin, a pressing parameter applied from the needle tube and the stabilizer to the living body when puncturing the living body with the needle tube. - View Dependent Claims (22)
-
Specification