Syringes for the visually impaired.

Abstract

Syringe for the visually impaired, which consists of a barrel (1) and a plunger (2). Where the outer surface (13) of the cylinder (1) is made to have a different contact surface from the normal surface of the cylinder. The packing (1) and the push rod (2), and the push rod shaft (22) are grooved along the volumetric groove (23) to form an inlet groove. Perpendicular to the diameter of the cylinder (1) and the area of ​​the end cap of the push rod (21) is made It is a positional groove (24) that is in line with the volumetric groove (23).

Claims

------08 / 01 / 2569------(OCR) OCR 09WP1. A syringe for the visually impaired, which consists of a cylinder (1) for holding liquid, which is cylindrical in shape and has an outer surface, and a plunger (2) which is designed to move along the longitudinal axis of cylinder (1) to expel liquid from cylinder (1). Cylinder (1) has an outer surface (13) which is physically different from the smooth surface of cylinder (1) in a way that can be perceived by the touch of a human fingertip. The plunger (2) consists of a plunger rod (22) which has at least one volumetric groove (23) aligned with the movement of the plunger (2), and a plunger end cap (21) which has at least one positioning groove (24). The positioning groove (24) is aligned with the volumetric groove (23) to serve as a tactile reference for the volumetric groove (23). To enable visually impaired individuals to perceive the location and volume of liquid in the syringe through touch.2.

3. A syringe for the visually impaired, under claim 1, in which the outer surface (13) of the container (1) is made to have a tactile texture by using a physical deformation process of which one of the following methods is used: scraping, drilling, eroding, burning, or melting of the outer surface (13) of the container (1).

4. A syringe for the visually impaired, under claim 1 to 3, in which the outer surface (13) of the container (1) is made to have a tactile texture by attaching a sheet of material (15) to the outer surface of the container (1). The sheet of material (15) is made to have a physical deformation of which one of the following methods is used: scraping, drilling, burning, or melting.

5. A syringe for the visually impaired, under claim 1 to 3, in which the appropriate volumetric groove (23) has a right-angled triangular cross-section and the groove depth increases in the direction of the pull or movement of the plunger (2).Syringes for the visually impaired, under one of the claims 1 through 4, in which the volumetric groove (23) is defined to have a range of groove depths, with the depth of each groove being 2 to 3 times greater than the depth of the previous groove, to allow for more precise perception of changes in volume by touch.

6. Syringes for the visually impaired, under one of the claims 1 through 5, in which the positioning groove (24) has a triangular cross-section and is provided to indicate the alignment of the volumetric groove (23) to help the user correctly position the touch.

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