JP2003159326A - Dial type unit for injecting prescribed insulin dose and means for fixing dose - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dial type unit which is capable of definitely injecting a fixed amount of insulin once the graduation is set up, since it is a drawback of an injector that makes it difficult to accurately inject a uniform amount always and for the dial type insulin injector to definitely set up an amount to a uniform level, although it is required to avoid an excessive administration but always inject an accurately fixed amount in injecting insulin. <P>SOLUTION: An external dial is flexibly installed to be rotated on the outer side of a circular graduation plate peripherally equipped with a reverse prevention gear, a pilot and a transparent lens are installed on the surface of the external dial and a stopper that controls the rotation of the external dial with a controlling protrusion is installed so that a fixed amount of insulin can be injected at all times when an injection button is pushed to match an indicator of the internal dial. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for injecting a prescribed amount in accordance with a scale using a dial-type insulin syringe, reading the scale accurately and repeatedly injecting the same amount. The present invention relates to a dial-type insulin prescribed amount infusion device and a method for setting a prescribed amount, which make it possible. 2. Description of the Related Art In a conventional dial-type insulin syringe, a syringe is mounted in a container, and a dial provided in the center of the container is turned to adjust a pointer to a scale displayed in a disk shape, and to fill the upper portion of the container. This is a method of injecting the liquid in the insulin cartridge by pressing a button and operating the gear inside the container. [0003] In the case of insulin injection, it is necessary to avoid overdose and always to inject exactly the same amount of insulin. When a conventional and commonly used syringe is used, there is a disadvantage that the same amount cannot be reliably injected. Therefore, a dial-type insulin infusion device equipped with an insulin cartridge was developed.However, it was necessary to turn the dial each time it was used to adjust the dial pointer to the unit scale. There was a drawback that it was difficult to set. An object of the present invention is to provide a dial-type insulin prescribed dose infusion device which can reliably administer the same dose once the scale is set in consideration of repeated injection of the same dose of insulin. [0005] In order to achieve the above object, in the dial-type insulin metered dose infusion device of the present invention, a box 1 is provided with a mounting portion for an insulin cartridge 2 and an upper portion of the box 1 is provided. When the injection button 16 that operates up and down is pressed, the liquid in the insulin cartridge 2 can be pushed out by the injection button 16 by the mechanism inside the box 1. In order to set the amount of extrusion, the scale 4 is written on the circular scale plate 3, and the inner dial 14 is rotated to adjust the pointer 15 provided on the inner dial 14 to the position of the target scale 4. Further, an outer dial 6 is fitted to the outside of the scale plate 3, and a pilot 7 and a transparent lens 8 are mounted on the surface of the outer dial 6. A projection 9 is provided on the inner periphery of the outer dial 6 and rotatably contacts the reverse rotation preventing tooth 5 on the outer periphery of the scale plate 3. A stopper 10 is fitted on the side of the outer dial 6 with the rotation shaft 11 as a fulcrum. The stopper 10 has on its side a restraining projection 12 that engages with the reverse rotation preventing tooth 5 of the scale plate 3 to control the rotation of the outer dial 6.
Above the stopper 10, a stopper fixing protrusion 13 for fixing the stopper 10 at a predetermined position protrudes, and controls the movement of the stopper 10. The reverse rotation preventing teeth 5 have an obtuse angle on one side and an acute angle on the other side, but other shapes are also conceivable. A pointer 15 displayed on the inner dial 14 having a rotation axis at the center of the scale plate 3 is displayed on the left side from the center so as to be in contact with the pilot 7 of the outer dial 6. For this reason, the position where the pointer 15 of the inner dial 14 contacts the pilot 7 is the required injection amount. In order to read the scale 4 accurately, a transparent lens 8 is attached to the pilot 7 so that the scale 4 is enlarged. Embodiments of the present invention will be described with reference to the drawings based on embodiments. FIG. 1 shows a state in which a cap of a dial-type insulin metered dose infusion device according to the present invention is fitted. A mounting portion for the insulin cartridge 2 is provided at the lower part of the box 1, and the liquid in the insulin cartridge 2 can be injected by operating the injection button 16 at the upper part of the box 1. In order to inject the prescribed amount of insulin without fail every time, in the present invention, the outer dial 6 and the inner dial 14 are arranged on the outer side and the inner side of the scale 1 in the box 1. In order to set the specified amount on the scale 4 described on the scale plate 3, the stopper 10 of the outer dial 6 is released, and the transparent lens 8 is adjusted so that the pilot 7 is adjusted to the specified amount of the scale 4.
Turn the outer dial 6 while checking with and lock with the stopper 10. Next, when the pointer 15 of the inner dial 14 is turned so as to match the pilot 7, the position where the inner dial 14 touches the pointer 15 becomes a prescribed amount, and the injection button 16 on the upper part of the box 1 is pushed, and the insulin cartridge 2
A prescribed volume of the liquid in can be injected. When a pilot stopper 17 is provided at the terminal position of the final scale 4 of the scale plate 3 and the outer dial 6 is turned clockwise, the advance of the pilot 7 is stopped by the pilot stopper 17. FIG. 2 is a view showing a state in which the cap of the dial type insulin metering device according to the present invention is removed and the inner dial 14 is removed.
Is turned to adjust the hands 15 to the pilot 7 of the outer dial 6. Since the mounting position of the pilot 7 and the display position of the pointer 15 are taken into consideration so that the position where the pointer 15 contacts the pilot 7 is a specified amount, the scale 4 of the scale plate 3 is accurately read and set by the transparent lens 8. can do. The scale plate 3 has a pilot stopper 17
Is provided. FIG. 3 illustrates the structure and mutual relationship of the scale plate 3, the outer dial 6, and the stopper 10. The rotation preventing teeth 5 are provided on the outer periphery of the scale plate 3, and the protrusions 9 on the inner periphery of the outer dial 6 are rotatably fitted. In order to control the rotation of the outer dial 6, a stopper 10 is mounted at one position of the outer dial 6. The stopper 10 is rotatably supported by inserting the rotation shaft 11 of the stopper 10 into a shaft hole provided in the outer dial 6. When the inhibiting projection 12 of the stopper 10 is inserted between the rotation preventing teeth 5 of the scale plate 3 to fix the outer dial 6, the stopper 10 is fixed to the hole of the outer dial 6 by the stopper fixing projection 13 in order to fix the stopper 10 itself. Insert and lock. The stopper 10 is fixed at a set position by the suppression protrusion 12. The outer dial 6 may be a removable mechanism, and the number of the inner peripheral projections 9 can be increased or decreased. The pilot stopper 17 of the scale plate 3 prevents the pilot 7 from moving forward. According to the method of using the insulin metering device of the dial type according to the present invention, the outer dial 6 is rotated clockwise to match the scale 4 of the unit into which the pilot 7 is injected. Then, turn the inner dial 14 clockwise to the pointer 1.
5 rotates to a position where it contacts the pilot 7. By pressing the injection button 16 at the top of the box 1, a prescribed amount of insulin can be injected. From the next time, the specified amount can be designated only by operating the inner dial 14, so that the operation is simplified. FIG. 4 is a perspective view of the stopper 10. The stopper 10 has a protrusion 12 at the front end thereof, a rotation shaft 11 at the top and bottom of the center, a protrusion 13 for fixing the stopper at the top, and a rear portion having a tooth-like shape to prevent slipping. The stopper 10 operates about a half turn around the rotation shaft 11. FIG. 5 and FIG. 6 are explanatory views in section.
The function of each part is shown. FIG. 5 shows a state in which the stopper 10 is released, and FIG. 6 shows a state in which the inhibiting projection 12 of the stopper 10 is actuated and locked to the rotation preventing tooth 5 of the scale plate 3. Each part is arranged on the same surface for convenience of explanation. The pointer 15 of the inner dial 14 is standing up to the height of contact with the pilot 7 of the outer dial 6. For this reason, the pointer 15 can reliably contact the pilot 7 and indicate the prescribed amount. Transparent lens 8
Is attached to the outer dial 6, rotates integrally with the outer dial 6, and protrudes above the scale plate 3, enlarges the scale 4 to facilitate reading, and makes it easy to use even for people with low vision. ing. The stopper 10 shown in FIGS. 5 and 6 has a rotation shaft 11 inserted into a shaft hole provided in the outer dial 6 to serve as a fulcrum of rotation. FIG. 6 shows a state in which the outer dial 6 is fixed by inserting the inhibiting projection 12 between the reverse rotation preventing teeth 5 of the scale plate 3. In this case, the stopper fixing projection 13
It is locked in the hole of the outer dial 6
The stopper 10 is fixed. FIG.
Is removed from the reverse rotation prevention tooth 5. The stopper fixing projection 13 is out of the hole of the outer dial 6. According to the present invention, a pilot attached to the outer dial can be fixed in advance to a scale of a set unit. [0016] Even a person with a handicap can easily set a prescribed amount of insulin dose, and can repeatedly inject the same amount of insulin. [0017] A prescribed amount of insulin can be injected quickly. [0018] Since the prescribed amount of insulin is always injected, overdose can be prevented. By mounting the transparent lens, the scale on the scale plate becomes easy to see, and even the elderly or those with low visual acuity can read the scale accurately.

[Brief description of the drawings] FIG. 1 is a front view FIG. 2 is a front view FIG. 3 is an explanatory view FIG. 4 is a perspective view FIG. 5 is an explanatory view in cross section. FIG. 6 is an explanatory view in cross section. [Explanation of symbols] 1 box 2 insulin cartridges 3 Scale plate 4 scales 5 Reverse rotation prevention teeth 6 outside dial 7 Pilot 8 Transparent lens 9 protrusion 10 Stopper 11 Rotation axis 12 Suppression projection 13 Stopper fixing projection 14 Inner dial 15 Guidelines 16 injection button 17 Pilot stopper

Claims (1)

Claims: 1. A unit scale (4) is described on a box (1) in which an insulin cartridge (2) is mounted in order to prevent excessive insulin administration, and a reverse rotation preventing tooth (4) is provided on the outer periphery. A circular scale plate (3) provided with 5) is fixed, and a projection (9) on the inner periphery of the outer dial (6) is provided outside the scale plate (3).
Is rotatably contacted, a pilot (7) and a transparent lens (8) are mounted on the surface of the outer dial (6), and the outer dial (6) is rotated around a rotation axis (11) as a fulcrum on a side portion thereof, and a depressing protrusion is formed. At the part (12), a stopper (10) for controlling the rotation of the outer dial (6) is mounted, and the inner dial (14) having a rotation axis at the center of the scale plate (3) is rotated and the pointer (15) is rotated. A fixed amount of insulin can be constantly infused by pressing the infusion button (16) at the top of the box (1) with the pilot (7) as a dial.