JP3028811U - Chemical spray equipment - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To obtain a chemical liquid spraying device which is free from bacterial contamination during the administration of the chemical liquid, can be administered by a simple operation, and is convenient to handle. A container (4) for inserting a drug bottle having a cylindrical cutting blade (7) on one side through a partition (2) communicates with the cylindrical cutting blade (7) on the other side and a primary valve ( The body (1) formed with the cylinder (6) having the flow path piece (10) provided with the flow path piece (10) is communicated with the flow path piece (10).
0) Sealing plug (13) attached to the inner and outer surfaces of the end
And a cylindrical piston (15), the inner surface of which is airtightly slidable with the stopper (13) and which is movable in the cylinder (6).
And a spray nozzle (19) communicating with the inside of the cylindrical piston (15) connected to the outside of the cylindrical piston (15) via a secondary valve (20), and the primary valve (9) is Open when storage chamber / pressurization chamber (5) has negative pressure, close when positive pressure, secondary valve (20) closes when storage chamber / pressurization chamber (5) has negative pressure, positive pressure It is configured to open when.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a chemical liquid spraying device which is free from bacterial contamination of the chemical liquid, can be administered with one touch, and is convenient to handle.

[0002]

[Prior art]

 In general, there is a drug bottle in which a rubber stopper is attached to a bottle mouth of a drug bottle into which a liquid medicine is injected, and a rubber cap is fixed by enclosing a metal cap around the upper peripheral surface of the rubber stopper and the periphery of the mouth. Then, when the drug solution is taken out from the drug bottle and sprayed onto the otolaryngology, for example, the rubber stopper of the drug bottle is used, the injection needle of a syringe with an injection needle is pierced and the drug solution is inhaled into the syringe. After taking it out, the injection needle is removed from the syringe, a drug solution spray nozzle is attached to the syringe, and spray administration is performed to the otolaryngology.

[0003]

[Problems to be solved by the device]

 However, in the conventional drug solution administration method as described above, when the injection needle and the drug solution spray nozzle are replaced, the connecting end of the drug solution spray nozzle and the spout of the syringe are exposed to the outside air. There is a possibility that bacteria in the air may adhere and the drug solution may be contaminated with the bacteria, causing a secondary disease due to drug solution administration.

[0004]

[Means for Solving the Problems]

 The present invention has been made in view of the above-mentioned problems of the related art, and an object thereof is to prevent the chemical solution from being contaminated with bacteria and to administer the chemical solution with a simple operation. The aim is to provide a chemical spray device that is convenient to handle. In order to achieve the above object, in the chemical liquid spraying device according to the present invention, a container having a container for inserting a drug bottle is formed on one side through a partition and a cylinder is formed on the other side, and the partition of the main body. A cylindrical cutting blade having an injection needle shape is provided on the side of the container for inserting the drug bottle, and a flow path communicating with the cylindrical cutting blade is provided on the cylinder side, and a flow path in which a primary valve is interposed A piece, a tight plug attached to the inner and outer surfaces of the open end of the channel piece in close contact, and having a communication hole that communicates with the channel of the channel piece; and an inner surface that is slidable in an airtight manner with the tight plug. A cylindrical piston that is movable in the cylinder and that has a piston actuating piece, a secondary valve that is provided outside the cylindrical piston, and a spray nozzle that communicates with the inside of the cylindrical piston. The primary valve consists of a stopper and a cylindrical piston. It is configured to open when the storage chamber / pressurization chamber is negative pressure and to close when it is positive pressure.The secondary valve is closed when the storage chamber / pressurization chamber is negative pressure and to open when it is positive pressure. It is characterized by being configured in. With this configuration, the drug solution in the drug bottle can be directly supplied to the drug solution sprayer, and the drug solution does not come into contact with the outside air due to replacement of the nozzle, etc., and bacterial contamination of the drug solution is prevented. Will be done.

[0005]

[Embodiment of device]

 In the liquid medicine spraying device of the present invention, a container for inserting a liquid medicine is formed on one side through a partition wall for inserting a liquid medicine via an injection needle, and a container for storing liquid medicine is formed on the other side. A cylinder for forming a chamber and a pressurizing chamber is formed, and at the center of the partition wall, there is provided an injection needle-like tubular cutting blade on the side of the container for inserting a drug bottle, and this cylindrical cutting blade is provided on the cylinder side. A main body is constituted by a flow path piece having a flow path communicating with the flow path, and a primary valve interposed in the flow path. The primary valve used here may be any check valve as long as it is a check valve, but a ball check valve is preferable. In addition, a tight plug made of an elastic material is tightly attached to the inner and outer surfaces of the cylinder side end of the flow path piece of the main body, and a communication hole communicating with the flow path of the flow path piece is formed in the center part. To be done.

The inner surface of a cylindrical piston movably arranged in the cylinder is fitted on the outer surface of the hermetically sealed plug in an airtight and slidable manner with the hermetically sealed plug, and the cylindrical piston operates the piston. A piston actuating piece is provided for making the piston actuating, and a guide hole for guiding the liquid medicine to the nozzle side is bored in the central portion of the cylindrical piston. A secondary valve is provided outside the central portion of the tubular piston, and a spray nozzle communicating with the inside of the tubular piston is provided. The primary valve is configured so that it opens when the storage chamber / pressurization chamber formed by the stopper and the cylindrical piston is negative pressure, and closes when positive pressure is applied, and the secondary valve is The storage chamber / pressurization chamber is configured to be closed when the pressure is negative and open when the pressure is positive.

The structure for mounting the spray nozzle provided outside the central portion of the cylindrical piston may be any structure as long as the secondary valve can be installed inside, but in order to simplify the structure, It is preferable that the nozzle is detachably screwed to a mount formed outside the central portion of the cylindrical piston and having a guide hole. In this case, as the secondary valve, a valve seat may be formed on the mount, and a valve may be provided inside the nozzle to open and close the guide hole by contacting with and separating from the valve seat.

In addition, in order to automatically collect the drug solution from the drug bottle into the drug solution spraying device and simplify its operation, a spring is provided between the tubular piston and the partition wall, and The open end is provided with a locking claw that projects and locks to the entrance and exit formed in the partition wall, and that the projection is expanded by the insertion of the drug and the locking at the entrance and exit is released. It is preferable. Further, in order to temporarily fix the drug bottle in the container and prevent the drug bottle from being removed from the container, the drug bottle is detachably locked near the partition wall in the container. A locking claw may be provided.

When the rubber stopper side of the drug bottle is inserted into the container of the chemical liquid spraying device configured as described above, the tubular cutting blade is pierced through the rubber stopper of the drug bottle, so that the nozzle side If the piston operation piece is gripped downwards and the container is lifted upwards, the space formed by the tight stopper and the inner surface of the cylindrical piston, that is, the storage chamber and pressurization chamber, becomes negative pressure, so the drug solution in the drug bottle Is sucked into the storage chamber and the pressurizing chamber through the tubular cutting blade, the channel of the channel piece, the primary valve, and the guide hole of the stopper. At this time, since the primary valve has a negative pressure in the storage chamber and the pressurizing chamber, the valve does not separate from the valve seat and the valve opening is not opened to prevent the movement of the liquid medicine. On the other hand, the secondary valve, on the contrary, has a negative pressure in the storage chamber and the pressurizing chamber, so that the valve is adsorbed to the valve seat and closes the valve port, preventing the flow of the chemical solution to the spray nozzle.

[0010] After the suction of the liquid medicine is completed, put the index finger and the middle finger on the piston actuation piece, put your thumb on the bottom of the bottle of drug, and pull the piston actuation piece and the body relative to each other. Since the positive pressure is applied to the storage chamber / pressurization chamber, the primary valve is closed to prevent the chemical liquid in the storage chamber / pressurization chamber from flowing back to the vial side, and the secondary valve is opened. Since the drug solution is sprayed from the tip of the nozzle, the tip of the nozzle is used by inserting it into the affected area of the patient.

[0011]

【Example】

 Example 1. (Manual Inhalation of Chemical Solution) FIG. 1 is an overall cross-sectional view showing an embodiment of the chemical solution spraying device according to the present invention, FIG. 2 is a cross-sectional view for explaining its operation, and FIG. 3 is a container side of the main body of the chemical solution spraying device. It is a side view. 1 to 3, a main body 1 has a container 4 for inserting a drug bottle 3 on one side through a partition wall 2 and a tubular shape having a slightly smaller diameter than the container 4 on the other side. A cylinder 6 is formed together with the piston 15 for forming a storage chamber / pressurizing chamber 5 for the chemical liquid in the drug bottle 3. In the center of the partition wall 2, an injection needle-shaped tubular cutting blade 7 is formed on the drug bottle insertion container 4 side, and a flow passage 8 communicating with the cylindrical cutting blade 7 is provided on the cylinder 6 side. A flow path piece 10 in which a primary valve 9 is interposed is formed in the flow path 8.

As for the drug bottle 3 used here, the opening is sealed by a rubber stopper 3a, and a part of the upper surface of the rubber stopper 3a and the periphery of the opening are surrounded by a metal cap 3b. 3a is fixed, and a cylindrical drug bottle 3 is used in which the rubber cap 3a is pierced with an injection needle of a syringe to suck the drug solution in the drug bottle 3a into the syringe. Further, as the primary valve 9, in the middle portion of the flow path piece 10, the diameter of the flow path 8 is formed to be slightly larger in the direction of the tip of the flow path piece 10, and the boundary portion between the small diameter portion and the large diameter portion is formed. A taper surface is formed on the valve seat 9a, and a ball 9b for opening and closing the small diameter portion of the flow passage 8 is provided in the valve seat 9a portion to form a ball check valve. The valve 9 is constructed. Therefore, the primary valve 9 is opened when the pressure inside the storage chamber / pressurization chamber 5 is negative, and is closed when the pressure is positive.

An appropriate number of drug bottle locking claws 11 for attaching and detaching the drug bottle 3 are formed around the partition wall 2 in the drug bottle inserting container 4, and a cylinder to be described later is provided on the inner peripheral edge of the open end of the cylinder 6. A stopper 12 for preventing the falling of the shaped piston is provided. At the end of the flow path piece 10 of the main body 1 on the cylinder 6 side, a tight plug 13 made of an elastic material fitted tightly over the inner and outer surfaces of the cylinder 6 is attached. A communication hole 14 communicating with the flow path 8 of 10 is formed. On the outer surface of the hermetic plug 13, the inner surface of a cylindrical piston 15 having a headed cylindrical shape movably arranged in the cylinder 6 is fitted in the hermetic plug 13 so as to be airtight and slidable. A piston actuating piece 16 for actuating the tubular piston 15 is provided on both sides of the center of the head of the tubular piston 15 and is provided outside the central portion of the head of the tubular piston 15. A guide hole 18 is formed in the center of the screw mount 17 for guiding the chemical liquid sucked into the storage / pressurization chamber 5 to the spray nozzle 19 side described later.

The tip of the guide hole 18 of the screw mount 17 is formed into an expanded tapered surface to form a valve seat 20 a, and is housed in a spray nozzle 19 screwed to the outside of the screw mount 17. The secondary valve 20 is configured with the conical end at the rear end of the spinner 20b. The secondary valve 20 is configured to be closed when the pressure inside the storage chamber / pressurization chamber 5 is negative and open when the pressure is positive. When the tip of the spinner 20 collides with the inner surface of the tip of the nozzle 19, that is, when the secondary valve 20 is opened, the spinner 20 passes through a gap 21 between the nozzle 19 and the spinner 20. A notch 23 is formed so that the chemical liquid can be sprayed from the spray hole 22 at the tip of the nozzle 19 without any trouble. In the figure, 24 is a stopper formed on the outer circumference of the cylindrical piston 15 to prevent the cylindrical piston 15 from coming off the cylinder 6 by colliding with the stopper 12 of the cylinder 6, and 25 is a spray nozzle 19 The cap 26 fitted to the tip end portion of the cap 13 is a cap 13 for preventing the ball 9b of the primary valve 9 from blocking the communication hole 14 of the cap 13 when the pressure in the storage / pressurizing chamber 5 is negative. It is an attached buffer plate.

Example 2. (Automatic inhalation of chemical liquid) FIG. 4 is an overall sectional view showing another embodiment of the chemical liquid spraying device according to the present invention, FIG. 5 is a sectional view for explaining the operation thereof, and FIG. 6 is the main body of the chemical liquid spraying device of FIG. It is a side view of the container side. In the figure, the first embodiment. The same symbols as the symbols in indicate the same components. This example is similar to Example 1. In the above, the liquid medicine in the medicine bottle 3 is manually sucked into the storage chamber / pressurization chamber 5 and is automatically sucked. Therefore, mainly in the first embodiment. The parts that are different from the above will be explained.

In FIGS. 4 to 6, a shallow cylindrical spring receiver 27 is attached to the peripheral edge of the opening end of the cylindrical piston 15, and a flow passage is provided between the spring receiver 27 and the partition wall 2. A coil spring 28 is provided so as to surround the piece 10. On the outside of the open end of the cylindrical piston 15, both sides of the center of the cylindrical piston 15 are protruded from a pair of locking holes 29, 29 bored in the partition wall 2 facing each other. A pair of locks that are stopped and the projecting portion is expanded by the insertion of the medicine bottle 3 at the metal cap 3b portion of the head of the medicine bottle 3 to release the locking in the locking holes 29, 29. Claws 30, 30 are provided. Therefore, when the medicine bottle 3 is inserted into the medicine bottle insertion container 4 from its head, the cylindrical cutting blade 7 is pierced through the rubber stopper 3a, and at the same time, the metal cap 3b is provided with a pair of locking claws 30. , 30 are expanded to release the locking of the locking claws 30 in the locking holes 29, the elasticity of the spring 28 causes the stopper 24 of the cylindrical piston 15 to collide with the stopper 12 of the cylinder 6. The pressure chamber 5 is also pushed out to the position where it is pushed, and the chemical solution storage chamber / pressurization chamber 5 is formed in the space surrounded by the inner surface and the sealing plug 13.

In addition, in the above-mentioned Embodiment 1. And Example 2. In all of them, the cylinder 6 is formed on the other side of the partition wall 2, but the cylinder 6 is not always necessary, and the outer diameter of the flow path piece 10 is slightly larger and is inscribed in the outer circumference thereof. An annular projection is provided on the inner surface of the open end of the cylindrical piston 15 to make the cylinder 6 movable with respect to the flow path piece 10, and the flow path piece near the tight plug 13 fitted into the flow path piece 10. It may be configured such that a stopper that abuts against the annular projection of the cylindrical piston 15 is provided at an appropriate position on the outer circumference of the cylinder 10.

[0018]

[Effect of device]

 The present invention is implemented in the form as described above, and has the following effects.

A container for inserting a drug bottle is formed on one side of the drug solution spraying device, a cylindrical cutting blade communicating with a drug solution storage chamber and a pressurizing chamber is provided at the center of the container, and a cylinder is provided on the other side. Since the cylindrical piston is inserted in this cylinder, when the chemical solution is sucked into the chemical solution spraying device, the chemical bottle is pressed into the chemical solution insertion container and the working piece of the container and piston is By dragging each other, the chemical solution can be sucked into the storage chamber and pressurization chamber formed in the chemical solution spraying device, so that the chemical solution does not come into contact with the outside air and there is no need to replace the device. Can be prevented from being contaminated with bacteria and secondary infection can be prevented.

A spring is interposed between the cylindrical piston and the partition wall, and the cylindrical piston is provided with a detachable locking claw on the partition wall. The locking claw is engaged by inserting the drug bottle into the cylinder. Since the stop is released, by inserting the drug bottle into the cylinder, the drug solution can be automatically sucked into the storage chamber and the pressurizing chamber formed in the drug solution spraying device, which is convenient for use.

Since the locking claws for removably locking the drug bottle are provided near the partition wall in the container, it is possible to prevent the drug solution spraying device from tilting during use of the drug solution spraying device. It is convenient to use because the medicine bottle does not fall out of the antenna.

[Brief description of drawings]

FIG. 1 is an overall sectional view showing an embodiment of a chemical liquid spraying device according to the present invention.

FIG. 2 is a cross-sectional view illustrating the operation of the chemical liquid spraying device in FIG.

FIG. 3 is a side view of the main body of the chemical liquid spray device in FIG. 1 on the container side.

FIG. 4 is an overall sectional view showing another embodiment of the chemical liquid spraying device according to the present invention.

5 is a cross-sectional view illustrating the operation of the chemical liquid spraying device in FIG.

6 is a side view on the container side of the main body of the chemical spray device in FIG.

[Explanation of symbols]

 1: Main body 2: Partition wall 3: Medicine bottle (3a: Rubber stopper 3b: Metal cap) 4: Container for inserting medicine bottle 5: Storage chamber and pressurization chamber 6: Cylinder 7: Cylindrical cutting blade 8: Flow path 9: Primary valve (9a: valve seat 9b: ball) 10: flow path piece 11, 30: locking claw 13: sealing plug 14: communication hole 15: cylindrical piston 16: piston operating piece 19: spray nozzle 20: secondary valve ( 20a: valve seat 20b: spinner) 28: coil spring 29: locking hole

Claims (3)

[Scope of utility model registration request] 1. A body (1) having a container (4) for inserting a drug bottle formed on one side and a cylinder (6) formed on the other side through a partition (2), and a body (1) of the body (1). An injection needle-shaped cylindrical cutting blade (7) is provided on the partition (2) side of the drug bottle inserting container (4), and a flow path communicating with the cylindrical cutting blade (7) on the cylinder (6) side. A channel piece (10) having (8) and having a primary valve (9) interposed in the channel (8), and in close contact with the inner and outer surfaces of the open end of the channel piece (10). A sealed plug (13) attached and having a communication hole (14) communicating with the flow passage (8) of the flow passage piece (10), and an inner surface of which is airtightly slidable with the sealed plug (13), and A cylindrical piston (15) movable in the cylinder (6) having a piston operating rod (16), and a secondary valve () provided outside the cylindrical piston (15). 0) with is provided, the spray nozzle in communication with the tubular piston (15) (19)
The primary valve (9) is opened when the inside of the storage chamber / pressurization chamber (5) formed by the sealing plug (13) and the cylindrical piston (15) is negative pressure, and is closed when positive pressure is applied. The secondary valve (20) is configured to be closed when the inside of the storage chamber / pressurization chamber (5) is negative pressure and open when the pressure is positive pressure. 2. A spring (28) is interposed between the cylindrical piston (15) and the partition wall (2), and the partition wall (2) is bored at the open end of the cylindrical piston (15). A locking claw (30) that is projected and locked in the locking hole (29), and the projecting portion is expanded by inserting the drug bottle (3) to release the locking in the locking hole (29). The chemical liquid spraying device according to claim 1, further comprising: 3. A locking claw (11) for removably locking a drug bottle (3), which is provided near the partition wall (2) in the container. 2. The chemical solution spraying device according to any one of 2.