JPH042070B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drug solution container and a pressure accumulating tank in a hoseless sprayer used for medical purposes, particularly for otorhinolaryngology or dental treatment.

BACKGROUND OF THE INVENTION In otorhinolaryngology or dental practice, pneumatic pressure is often used to spray a medicinal solution onto the affected area of a patient. The treatment table used for this treatment is
It is equipped with a compressor that sends compressed air inside. The compressor is connected to a chemical sprayer via a hose. When a doctor changes locations for medical treatment, he or she must hold the sprayer in hand and move along with the hose.

Therefore, a sprayer with a hose not only interferes with medical treatment, but also increases the fatigue of the doctor.

Therefore, there has been a strong demand for a sprayer without a hose, that is, a hoseless sprayer.

[Conventional technology]

A conventional example will be explained with reference to FIG. FIG. 5 is an explanatory diagram of a conventional example of an otorhinolaryngological spray.

In FIG. 5, 21 is a drug solution container, and a lid stopper 22
It is connected to the atomizer 26 via. 23 is an on-off valve provided on one side of the lid plug 22. When the pusher 24 is pressed by the doctor's thumb, the slider 25 moves to open the on-off valve 23, and compressed air enters the drug solution container 21 from the pressure accumulation tank 27.

When the pressure inside the chemical liquid container 21 increases, the chemical liquid sucked up through the suction pipe 29 in the chemical liquid container 21 is sprayed in the form of mist from the tip of the injection pipe 28. The on-off valve 23 is connected to a pressure regulator 31 via an air supply pipe 30, and is detachably attached to the pressure regulator 31 with a nut 32. Further, the pressure regulator 31 is provided above the pressure accumulating tank 27 as shown in FIG.

A leg piece 34 is attached to the lower part of the pressure storage tank 27 via an air supply port 33. The leg piece 34 has an upper valve 35, and an upper tubular valve holder 36 is attached to the lower part of the upper valve 35. A portion of the upper tubular valve 36 protrudes from the guide hole of the leg 34.

A doctor carries out medical treatment by holding the hoseless spray A described above in his hand.

Next, pressure accumulation tank 2 of hoseless spray A
7, the air charger B for accumulating compressed air will be explained.

At the center of the upper part of the housing 40, the leg piece 3 is provided.
It has a sliding groove in which the hoseless sprayer 4 can be fitted and slid up and down, and a receiving part 41 into which the hoseless sprayer A is inserted is attached to the upper part of the sliding groove. A sensor 42 is attached to the side of the receiving part 41.

Therefore, if the hoseless sprayer A is inserted into the receiving part 41 without being used,
Sensor 42 detects this and causes current to flow through coil 45 of electromagnet 43. Then, the yoke 46 supporting the coil is magnetized and attracts the leg piece 34 downward.

At this time, the upper valve 35 and the lower valve 47 open through the communication hole, and are closed when the leg piece 34 is not being sucked.

The air charger B as described above is attached to a unit 48 of a treatment table (not shown).

In the apparatus configured as described above, in order for a doctor to perform medical treatment, the hoseless spray A is placed in the receiving part 4.
Extract from 1. Then, the doctor inserts the injection tube 28 of Hoseless Spray A into the affected area, and then presses the pusher 24 with his thumb. When the pusher 24 is pressed, the on-off valve 23 opens, and the compressed air accumulated in the pressure accumulation tank 27 enters the chemical solution container 21 through the pressure regulator 31 and the air supply pipe 30. When the air pressure inside the chemical liquid container 21 increases, the chemical liquid flows through the suction pipe 29 and the spraying part 2.
6 and is sprayed from the tip of the spray tube 28 onto the affected area.

When the spray treatment is completed, the doctor inserts the hoseless sprayer A into the receiving part 41. A sensor 42 provided on one side of the receiving portion 41 detects the hoseless spray A and causes an electric current to flow through the electromagnet 43. As a result, the yoke 46 of the electromagnet 43
attracts the leg piece 34 of the hoseless spray A, which is magnetized and made of a magnetic material, together with the hoseless spray A. When the leg piece 24 is sucked downward, a valve hole not visible in FIG. 5 opens. As a result, compressed air sent from a compressor (not shown) passes through the compressor connection 49, the lower valve 47, the upper valve 35, and the air supply port 33 to the pressure accumulator tank 2.
Enter 7. After a certain period of time has passed, the pressure within the pressure storage tank 27 increases and reaches a certain pressure. Then, the pressure acts in a direction to push down the upper valve 35 and prevents the compressed air from escaping from the pressure accumulation tank 27.

At this time, since the circuit of the electromagnet 43 is still operating, a timer (not shown) is activated to prevent the electromagnet 43 from burning out.
3 circuit is disconnected.

In this way, when one medical treatment is completed, preparations can be made automatically for the next medical treatment.

[Problem to be solved by the invention]

In the hoseless spray A as described above, the chemical liquid container 21 containing the chemical liquid is replaced every time the chemical liquid in the chemical liquid container 21 runs out.

However, since it is difficult to confirm how much air pressure remains in the pressure accumulator tank 27,
If the nut 32 is removed without releasing the compressed air inside, the spray section 26 will pop out due to the pressure inside the pressure storage tank 27. It is extremely dangerous for the spray unit 26 to hit doctors, nurses, or patients in the treatment room, as well as various liquid medicine containers or medical equipment in the treatment room.

In addition, since the medical solution container 21 contained in the pressure accumulation tank 27 is not visible to doctors and nurses, they will not be able to tell even if the medical solution therein has run out. Therefore, there was a problem in that the doctor noticed that there was no medicinal solution until after the doctor had examined the patient.

In order to solve the above-mentioned problems, the present invention provides that even if compressed air is left in the temporary pressure storage tank 27 and the nut 32 is removed by mistake,
The purpose of the present invention is to provide a medical hoseless spray chemical container and pressure accumulator tank that are free from danger.

SUMMARY OF THE INVENTION An object of the present invention is to provide a medical hoseless spray chemical container and a pressure accumulator tank that can visually confirm when the chemical liquid in the container has run out.

[Means to solve the problem]

In order to achieve the above object, the medical solution container in the medical hoseless sprayer of the present invention has a cylindrical convex part that can be attached to and detached from a socket of a pressure accumulator tank at the lower end thereof, and a tapered surface forming the tip of the cylindrical convex part. and a spherical surface portion, and at least two fixing fitting receiving grooves and a receiving groove convex portion provided around the cylindrical convex portion on the tapered surface and the spherical surface portion.

Further, the tapered surface, the receiving groove convex portion, the spherical surface portion, and the fixing metal fitting receiving groove are configured to be arranged in correspondence with each other.

The pressure accumulation tank in the medical hoseless sprayer of the present invention is rotatably attached to the leg piece provided at the lower end having an on-off valve for accumulating compressed air, and a socket fixing screw below.
It consists of a socket having openings on at least two sides, and a fixture that is provided so as to close the opening and that fits into a fixture receiving groove of the chemical liquid container through the opening.

Further, the fixing metal fitting is configured to curve toward the inside of the opening.

The medical solution container and the pressure accumulation tank in the medical hoseless sprayer of the present invention are constructed from visible members.

[Effect]

When the drug solution container is inserted into the socket, the tapered surface at the tip of the drug solution container comes into contact with a fixing metal fitting provided on the socket. In this case, after rotating the socket whose tapered surface is integrated with the fixing fitting, the fixing fitting of the socket and the fixing fitting receiving groove of the chemical liquid container are matched and locked.

In addition, if the tapered surface at the tip of the drug solution container does not touch the fixing metal fitting provided on the socket and is inserted from the spherical part, the fixing metal fitting of the socket and the fixing metal fitting receiving groove of the chemical liquid container will fit together as they are. It will be locked.

When the fixing metal fitting receiving groove of the chemical liquid container and the fixing metal fitting of the socket are locked, the socket is rotatable even when the chemical liquid container is rotated, so that both rotate. However, when you pull up and turn the chemical liquid container to remove it, the fixing metal fitting receiving groove of the chemical liquid container and the fixing metal fitting of the socket are locked, so the brake is applied due to the frictional resistance between the socket and the socket fixing screw, and the socket is removed. Does not rotate. When only the chemical liquid container rotates without the socket rotating, the fixing fitting rides on the receiving groove convex portion at the tip of the socket. As a result, the lock between the fixing metal fitting receiving groove of the chemical liquid container and the fixing metal fitting is released, and the chemical liquid container is removed from the socket.

〔Example〕

Embodiments of the present invention will be described with reference to FIGS. 1 to 4. Fig. 1 is an external view of the medical hoseless sprayer according to the present invention, Fig. 2 is an external view of the spraying section and drug solution container according to the present invention, Fig. 3 is an external view of the pressure accumulator tank according to the present invention, and Fig. 4 is an external view of the medical hoseless sprayer according to the present invention. It is an explanatory view of attachment and detachment of a chemical liquid container.

In the medical hoseless spray A of the present invention, as shown in FIG.
It's inside. A spray section 10 and a pressure adjustment section 20 are provided at the upper part of this pressure accumulation tank 11. And medical hoseless spray A
Preparation for medical treatment is completed by accumulating compressed air in the pressure accumulating tank 11 from an air charger (not shown).

When performing medical treatment, a doctor holds the hoseless sprayer A in one hand and sprays a medicinal solution from the tip of the spraying part 10 while pushing the pressure regulator 20 with the thumb to treat the patient.

Next, the chemical liquid container will be explained with reference to FIG. 2. In FIG. 2, reference numeral 1 denotes a chemical liquid container, which is made of a chemical-resistant material, but it can also be made of reinforced plastic or the like so that the chemical liquid in the chemical liquid container 1 can be seen. The lower end of the drug solution container 1 forms a cylindrical convex portion 2 that has a cylindrical shape (or may be a cylinder) that is slightly thinner than the portion of the drug solution container. And this cylindrical convex part 2
As shown in the figure, the distal end portion 3 is provided with a tapered surface 4 and a spherical surface portion 5 alternately. Furthermore, a fixing fitting receiving groove 6 and a receiving groove convex portion 7 are provided on the tip portion 3.

In FIG. 2, the receiving groove convex portion 7 is cut into a rectangular shape, but at least two portions are required and the receiving groove convex portion 7 is a polygon having a triangular shape or more.

Further, the tapered surface 4 and the receiving groove convex portion 7 are provided to face each other.

Next, the pressure accumulator tank will be explained with reference to FIG. 3. In FIG. 3, reference numeral 11 denotes a pressure accumulator tank made of a pressure-resistant material, but it can also be made of reinforced plastic or the like so that the chemical solution container 1 can be seen.

A leg piece 12 having a valve hole (not shown) is provided at the outer lower end of the pressure accumulation tank 11. In addition, a chemical solution container 1 is provided at the lower end of the pressure accumulation tank 11.
A socket 13 for attaching and detaching is provided. The socket 13 is rotatably attached by a socket fixing screw 14. Further, around the socket 13, there are openings 15 in at least two places.
is provided, and a fixture 16 is attached to this opening 15. The fixing fitting 16 is, for example, a spring made of wire, and is curved toward the inside of the opening 15.

After the lid consisting of the chemical solution container 1, the spraying part 10, the pressure regulator 20, etc. is closed on the pressure accumulation tank 11 configured in this way, the pressure accumulation tank 11 is placed in the air charger B, and the pressure accumulation tank 11 is inserted through the leg pieces 12 (not visible in the figure). Compressed air enters the pressure accumulation tank 11 through the valve and the introduction hole.

The manner in which the chemical solution container 1 is attached to and removed from the socket 13 of the pressure accumulating tank 11 will be described below with reference to FIGS. 4A to 4F.

FIG. 4A shows the state before the chemical solution container 1 is fitted into the pressure accumulating tank 11. As the chemical liquid container 1 is further inserted into the socket 13 than shown in FIG.
6 and the spherical portion 5 of the chemical liquid container 1 come into contact with each other. As a result, the fixing fitting 16 falls into the fixing fitting receiving groove 6 of the chemical liquid container 1 while sliding on the spherical surface portion 5, and the chemical liquid container 1 and the socket 13 are locked together.

FIG. 4C shows this state.

If the tapered surface 4 of the chemical liquid container 1 is
Since the socket 13 is rotatably attached, when it hits the fixture 16 of No. 3, the fixture 16
The socket 13 is rotated while sliding on the curved part of the socket.

As a result, the fixing fitting 16 falls into the fixing fitting receiving groove 6 of the liquid medicine container 1, and the liquid medicine container 1 and the socket 13 are locked together, as shown in FIG. 4B.

Next, the case of unlocking the chemical liquid container 1 and the socket 13 will be explained. FIG. 4D shows the case where the chemical solution container 1 and the socket 13 are fitted.

Hold the drug solution container 1 and insert it into the socket 13 while rotating.
When the drug solution container 1 and the socket 13 are pulled up, the drug solution container 1 and the socket 13 initially rotate together because they are locked. However, when the drug solution container 1 is further rotated and pulled up from the socket 13, the drug solution container 1 is locked with the socket 13 and cannot be raised any further. In this state, the rotatably mounted socket 13 stops rotating due to friction between the socket 13 and the socket fixing screw 14. As a result, the locked fixture 16 of the socket 13 comes off the fixture receiving groove 6 of the chemical liquid container 1 and rides on the receiving groove convex portion 7 . FIG. 4(e) shows this state. When the lock is released, the chemical solution container 1 is removed from the socket 13 as shown in FIG.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Various design changes can be made without departing from the scope of the invention as set forth in the claims.

For example, the fixing metal fittings for the sockets in the embodiments are made of filaments wrapped around the sockets, but the shape can be changed as long as the function is the same.

Further, any material can be used for forming the chemical solution container and the pressure accumulation tank as long as it can be visually recognized.

〔Effect of the invention〕

According to the present invention, the chemical solution container and the pressure accumulator tank socket are locked by the fixing metal fitting receiving groove of the chemical liquid container and the socket fixing fitting of the pressure accumulating tank, so that compressed air is not left in the pressure accumulating tank. However, the compressed air will not blow away the chemical container.

Since the lock is disengaged when the drug solution container is turned and pulled up, the drug solution container and the socket can be reliably fitted and easily removed.

Further, according to the present invention, since the drug solution container and the pressure accumulation tank are made of reinforced plastic or the like, it is possible to visually confirm whether or not there is a drug solution from the outside, and the container is lightweight, making it easy to perform medical treatment.

[Brief explanation of drawings]

Fig. 1 is an external view of the medical hoseless sprayer according to the present invention, Fig. 2 is an external view of the spraying section and drug solution container according to the present invention, Fig. 3 is an external view of the pressure accumulator tank according to the present invention, and Fig. 4 A to F are FIG. 5, which is an explanatory diagram for attaching and detaching the drug solution container in the present invention, is an explanatory diagram of a conventional example of an otorhinolaryngological spray. DESCRIPTION OF SYMBOLS 1... Chemical solution container, 2... Cylindrical convex part, 3... Tip part, 4... Tapered surface, 5... Spherical part, 6... Fixing metal receiving groove, 7... Receiving groove convex part, 10... spray part,
11...Pressure tank, 12...Leg piece, 13...Socket, 15...Opening, 16...Fixing metal fittings, 20
...Pressure adjustment section.

Claims (1)

[Claims of Claims] 1. A medical device comprising a liquid medicine container 1 detachably attached to a pressure accumulation tank 11, and a spraying unit 10 that sprays a liquid medicine by sending compressed air in the pressure accumulation tank 11 into the medicine liquid container 1. In the hoseless sprayer, the socket 13 of the pressure storage tank 11 is located at the lower tip.
A cylindrical convex portion 2 that can be attached to and removed from the cylindrical convex portion 2, and a tapered surface 4 that constitutes the tip of the cylindrical convex portion 2.
and a spherical surface portion 5; and at least two fixing metal fitting receiving grooves 6 and a receiving groove convex portion 7 provided around the cylindrical convex portion 2 on the tapered surface 4 and the spherical surface portion 5. A medical solution container for medical hoseless sprayers featuring: 2. The drug solution container in a medical hoseless sprayer according to claim 1, wherein the tapered surface 4 and the receiving groove convex portion 7, and the spherical surface portion 5 and the fixing metal receiving groove 6 are arranged in correspondence with each other. 3. A medical hoseless sprayer comprising a medical liquid container 1 detachably attached to a pressure accumulating tank 11, and a spraying unit 10 that sprays a medical liquid by sending compressed air in the pressure accumulating tank 11 into the medical liquid container 1. a leg piece 12 having an on-off valve for accumulating compressed air at its lower end; a socket 13 rotatably attached to the lower part by a socket fixing screw 14 and provided with openings 15 on at least two sides; A fixing metal fitting 16 provided to close the opening 15 and fitting into the fixing fitting receiving groove 6 of the liquid medicine container 1 through the opening 15. Pressure storage tank. 4. The pressure accumulator tank in a medical hoseless sprayer according to claim 3, wherein the fixture 16 is curved toward the opening 15. 5. The drug solution container in the medical hoseless sprayer according to claim 1, which is comprised of a visible member. 6. The pressure accumulating tank in the medical hoseless sprayer according to claim 3, which is constructed from a visible member.