SYRINGE
First Claim
1. A syringe for injecting an injection objective substance into an injection target area of a living body without using any injection needle, the syringe comprising:
- an enclosing unit which encloses the injection objective substance;
a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit; and
a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to the injection target area, wherein the pressurizing unit has;
a first pressurizing mode in which a pressure applied to the injection objective substance in the pressurizing unit is raised to a first peak pressure in order to allow the injection objective substance to penetrate through a surface of the injection target area, and then the pressure applied to the injection objective substance is lowered to a waiting pressure; and
a second pressurizing mode in which the injection objective substance having the waiting pressure is pressurized so that the pressure applied to the injection objective substance is raised to a second peak pressure to inject a predetermined injection amount of the injection objective substance.
1 Assignment
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Accused Products
Abstract
It is possible to feed an injection objective substance to a depth of a skin structure of an objective living body without using any injection needle. A syringe having no injection needle comprises an enclosing unit which encloses the injection objective substance, a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit, and a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to an injection target area. The pressurizing unit has a first pressurizing mode in which a pressure applied to the injection objective substance in the pressurizing unit is raised to a first peak pressure in order to form a penetrating passage in the injection target area, and then the pressure applied to the injection objective substance is lowered to a waiting pressure, and a second pressurizing mode in which the injection objective substance having the waiting pressure is pressurized so that the pressure applied to the injection objective substance is raised to a second peak pressure to inject a predetermined injection amount of the injection objective substance.
15 Citations
13 Claims
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1. A syringe for injecting an injection objective substance into an injection target area of a living body without using any injection needle, the syringe comprising:
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an enclosing unit which encloses the injection objective substance; a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit; and a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to the injection target area, wherein the pressurizing unit has; a first pressurizing mode in which a pressure applied to the injection objective substance in the pressurizing unit is raised to a first peak pressure in order to allow the injection objective substance to penetrate through a surface of the injection target area, and then the pressure applied to the injection objective substance is lowered to a waiting pressure; and a second pressurizing mode in which the injection objective substance having the waiting pressure is pressurized so that the pressure applied to the injection objective substance is raised to a second peak pressure to inject a predetermined injection amount of the injection objective substance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a syringe for injecting an injection objective substance into an injection target area of a living body without using any injection needle, the method including:
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providing, within the syringe, an enclosing unit which encloses the injection objective substance; providing, within the syringe, a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit; and providing, within a syringe, a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to the injection target area, pressurizing by the pressurizing unit in a first pressurizing mode in which a pressure applied to the injection objective substance in the pressurizing unit is raised to a first peak pressure in order to allow the injection objective substance to penetrate through a surface of the injection target area, and then the pressure applied to the injection objective substance is lowered to a waiting pressure; and pressurizing by the pressurizing unit in a second pressurizing mode in which the injection objective substance having the waiting pressure is pressurized so that the pressure applied to the injection objective substance is raised to a second peak pressure to inject a predetermined injection amount of the injection objective substance.
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12. A method of injecting an injection objective substance from a syringe into an injection target area of a living body without using any injection needle, the method including:
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providing, within the syringe, an enclosing unit which encloses the injection objective substance; providing, within the syringe, a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit; and providing, within a syringe, a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to the injection target area, pressurizing by the pressurizing unit in a first pressurizing mode in which a pressure applied to the injection objective substance in the pressurizing unit is raised to a first peak pressure in order to allow the injection objective substance to penetrate through a surface of the injection target area, and then the pressure applied to the injection objective substance is lowered to a waiting pressure; and pressurizing by the pressurizing unit in a second pressurizing mode in which the injection objective substance having the waiting pressure is pressurized so that the pressure applied to the injection objective substance is raised to a second peak pressure to inject a predetermined injection amount of the injection objective substance.
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13. A method of adjusting an injection depth in an injection target area of a living body with a syringe for injecting an injection objective substance without using any injection needle, the method including:
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providing, within the syringe, an enclosing unit which encloses the injection objective substance; providing, within the syringe, a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit; and providing, within a syringe, a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to the injection target area, pressurizing by the pressurizing unit in a first pressurizing mode in which a pressure applied to the injection objective substance in the pressurizing unit is raised to a first peak pressure in order to allow the injection objective substance to penetrate through a surface of the injection target area, and then the pressure applied to the injection objective substance is lowered to a waiting pressure; and pressurizing by the pressurizing unit in a second pressurizing mode in which the injection objective substance having the waiting pressure is pressurized so that the pressure applied to the injection objective substance is raised to a second peak pressure to inject a predetermined injection amount of the injection objective substance.
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Specification