JPH0336539B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a hoseless ventilator for use in aeration in otorhinolaryngological practice.

In recent years, there has been a tendency for many patients to concentrate in well-equipped hospitals, so doctors at such hospitals have to perform repetitive actions such as performing medical treatment in a standing position or filling out medical records at a desk. Must-have. Therefore, in order to provide high-quality medical care with less fatigue, doctors have begun to request sitting-based medical treatment in which the doctor and patient can perform medical treatment while sitting together in a chair.

The present invention relates to a hoseless ventilator necessary to enable the above-mentioned sitting medical treatment in otorhinolaryngology.

[Prior Art] In otorhinolaryngology-related diseases, there are cases where the Eustachian tube is narrowed or obstructed due to a lesion or the like, making it difficult for air to reach the middle ear, which is connected to the Eustachian tube. In such cases, the pressure balance between the middle ear and the outer ear is disrupted, causing the eardrum to bulge (feeling solid) or to hearing distance. To treat this disease, there is a ventilation treatment that involves sending compressed air into the Eustachian tubes to widen them. This ventilation involves inserting a European tube catheter into the entrance of the Eustachian tube from the nasal cavity, and expanding the Eustachian tube by sending compressed air through the European tube catheter. Therefore, the number of outpatient treatments increases depending on the degree of stenosis or obstruction of the Eustachian tube.

However, the distance from the nasal cavity to the entrance to the Eustachian tube is usually more than 10 centimeters, and the path to the Eustachian tube curves differently depending on the person. Furthermore, no means has yet been developed for doctors to conduct medical treatment while viewing the winding path.

Therefore, doctors rely on their experience from the time the European tube catheter is inserted into the nasal cavity until the tip reaches the entrance of the Eustachian tube. In addition, the air pressure when ventilating not only varies from person to person depending on the degree of stenosis or obstruction of the Eustachian tube, or the way it bends to the Eustachian tube, but also may cause unnecessary stimulation to other organs. must not.

Therefore, conventionally, with your right hand, you hold the flexible rubber tube (compressed air introduction rubber tube) connected to the base of the European tube catheter, and while searching for the position of the tip of the European tube catheter, reach the entrance of the Eustachian tube. was.

When they arrived, they used either their left or right hand to support the catheter, and the other hand to adjust the compressed air.

[Problem to be solved by the invention]

However, the current situation is that the above-mentioned medical treatment performed in a standing position while using both hands causes severe fatigue for the doctor, which may even affect the quality of medical treatment.

Therefore, a seated medical treatment has been proposed in which the patient can sit while holding the vent with one hand, but the hose that supplies the compressed air gets in the way and is inconvenient in practice.

In addition, there were problems with the air pressure stored in the vent, and with the operability of the doctor when performing the above-mentioned complicated operations with one hand. In particular, when performing ventilation treatment, it may take several tens of seconds or more, depending on the condition of the affected area. The number of ventilations can be varied in various ways depending on the condition of the affected area or the medical treatment method of the doctor. Therefore, if the hose for supplying air to the pressure storage tank was eliminated, there was a problem in maintaining the air pressure in the pressure storage tank necessary for ventilation.

In order to solve the above problems, it is an object of the present invention to provide a hoseless ventilator that does not require a hose for feeding compressed air and is lightweight and has good operability.

[Means to solve the problem]

In order to achieve the above object, the hoseless ventilator of the present invention has an upper opening/closing valve that opens and closes by sliding the leg pieces, and a pressure accumulating tank that can accumulate enough air to ventilate the Eustachian tube. , a pressure regulator having an on-off control valve that can adjust the pressure at the top of the pressure accumulation tank; a vent pipe connected to the output part of the pressure regulator via a flexible pipe;
a vent B comprising: a socket that receives the vent B; a sensor that detects that the vent B enters the socket; and a sensor that operates for a certain period of time based on a signal from the sensor to slide the leg. The electromagnet is provided with an electromagnet having an upper recess into which a leg of the ventilation part B can be inserted and removed, a lower recess having a lower opening/closing valve that opens and closes in conjunction with the upper opening/closing valve, and a compressor connection part. a receiving part A comprising: a yoke of; the compressor connecting part; a lower opening/closing valve;
It consists of a compressor C that accumulates air pressure in a pressure accumulation tank via an upper opening/closing valve;

Furthermore, the communication between the receiving part A and the ventilation part B of the hoseless ventilator in the present invention is such that the tip end surface of the lower pipe connected to the lower opening/closing valve and the leading end surface of the upper pipe connected to the upper opening/closing valve are brought into contact with each other. Configure it to do so.

Furthermore, the output section of the ventilation section B of the hoseless ventilator according to the present invention to the ventilation pipe is configured to be provided at the upper end of the pressure regulator.

[Effect]

After performing ventilation treatment, the doctor inserts the ventilation section B into the socket of the receiving section A. Ventilation part B is the receiving part A
When inserted into the socket, the sensor detects this and energizes the electromagnet's coil for a certain period of time. The yoke is magnetized by the magnetic flux of the energized coil, and the legs of the ventilation section B are attracted to the recessed part of the yoke. By sliding the leg piece, the lower opening/closing valve of the receiving part A and the ventilation part B are connected.
The upper opening/closing valve opens, and the compressor C is connected to the pressure accumulation tank of the ventilation section B.

Compressed air is sent into the pressure storage tank from the compressor C to bring the pressure inside the pressure storage tank to the required pressure. When the pressure inside the pressure storage tank reaches the required pressure, the power to the electromagnet is cut off, and the ventilation section B goes into a standby state.

The doctor holds the pressure-accumulated ventilation part B in one hand, puts the pressure-accumulation tank part in the palm of his hand while sitting, and uses his thumb to open the on-off adjustment valve and adjust the air pressure coming out from the tip of the European tube catheter. Then, the patient holds the end of the European tube catheter with his or her index finger and middle finger, and performs complicated operations with the three fingers and the palm of the hand.

〔Example〕

An embodiment of the present invention will be described with reference to FIG.

FIG. 1 is an explanatory diagram of an embodiment of the present invention. In the figure, reference numeral A denotes a receiving section capable of accumulating pressure in the ventilation section B, and is indicated by the number 2 at the beginning.

B is a ventilation part that a doctor can hold in one hand to perform ventilation treatment on a patient, and is represented by the first number 3 to 5. C is a compressor section for accumulating air pressure in the ventilation section B.

First, the receiving section A will be explained.

Reference numeral 2.1 is a socket into which the pressure accumulator tank 3.1 of the ventilation section B is inserted, and is tapered toward the bottom so as to easily support the pressure accumulator tank 3.1.
2.2 is a housing that supports the socket 2.1, and the housing 2.2, a yoke 2.4 and a coil provided therein form an electromagnet 2.3. Therefore, the magnetized leg piece 3.6 is attracted to the yoke 2.4 together with the ventilation portion B.

In addition, in the lower recess 2.42 of the yoke 2.4,
A lower switching valve 2.5 with a lower pipe 2.6 and a compressor connection 2.8 which connects to the compressor section C are provided. The upper side of the yoke 2.4 is provided with an upper recess 2.41 in which a leg piece, which will be described later, slides.

Further, the lower part of the housing 2.2 is provided with a lead wire insertion port 2.43 for the electromagnet 2.3 and a mounting portion 2.7 to which the housing 2.2 of the receiving portion A is attached. A sensor 2.9, such as a light sensor or a proximity switch, is attached to the side of the socket 2.1. Sensor 2.9 indicates that vent B is inserted into socket 2.1.
When detected, the electromagnet 2.3 is actuated to open and close the valve.

Next, the ventilation section B will be explained.

Reference numeral 3.1 designates a pressure accumulator tank, and its upper part is provided with a pressure accumulator tank top cover 3.2, and its lower part is provided with an opening 3.3. At the bottom of the opening 3.3 provided in the accumulator tank 3.1, a leg piece 3.6 made of magnetic material is provided together with a retaining ring 3.4. The leg piece 3.6 has a guide hole in its center and a recess 3.8 in its upper part.

Further, in the recess 3.8 of the leg piece 3.6, there is provided an upper opening/closing valve 3.5 having an upper pipe 3.7 toward the lower end.
is inserted.

The upper tube 3.7 extends slidably along the guide hole of the leg piece 3.6, and its tip abuts the upper end of the lower tube 2.6 of the receiving part A.

Reference numeral 4.1 is a pressure regulator, and safety valve 4.1 is a pressure regulator.
2, on-off control valve 4.3, and compressed air outlet 4.
4, and the pressure accumulator tank 3.1 is a nut 4.5
It is removably fixed. The opening/closing control valve 4.3 can start jetting air by pressing the doctor's thumb, and can also change the jetting pressure of air by the pressing force of the thumb. Also,
The positions of the safety valve 4.2 and the compressed air outlet 4.4 in the pressure regulator 4.1 are interchanged. That is, by making the installation diameters of the safety valve 4.2 and the compressed air outlet 4.4 the same, the doctor can select the one that is easier for him to operate.

Reference numeral 5.1 is a European tube catheter, the tip of which is slightly curved. In addition, European tube catheter 5.
The base of the compressed air outlet 4.1 is connected to the compressed air outlet 4.1 via a flexible tube 5.2 made of rubber or plastic.
Connected to 4. Therefore, when the doctor holds the vent B with one hand, he or she can freely change the direction of the distal end of the European tube catheter 5.1.

Here, the mode of use of the hoseless ventilator of the present invention will be explained.

Normally, when the ventilation part B is not in use, the ventilation part B is inserted into the receiving part A, and at that time, compressed air is supplied to the lower part of the receiving part A from a compressor part C, not shown.

In medical treatment, when ventilation has ended, the air pressure in the accumulator tank 3.1 has decreased. When the ventilation section B is inserted into the socket 2.1 of the receiving section A in this state, the sensor 2.9 detects this and energizes the coil of the electromagnet 2.3. The time for energizing the coil can be determined by a timer (not shown).

Further, instead of determining the time for energizing the coil by a timer, the pressure in the pressure storage tank 3.1 can be detected by a sensor (not shown), and when the pressure reaches a certain level, the energization to the coil can be cut off.

The magnetic flux generated by the energized coil passes through the housing 2.2, the yoke 2.4, and the leg piece 3.6, forming a closed circuit, and the yoke 2.4 and the leg piece 3.6 are magnetized. The magnetized yoke 2.4 is connected to the ventilation section B
At the same time, the leg 3.6 is drawn into the upper recess 2.41 of the yoke 2.4. When the upper opening/closing valve 3.5 and the part of the leg 3.6 in contact with the upper opening/closing valve 3.5 are separated by sliding of the leg 3.6, a hole (not visible in the figure) of the upper opening/closing valve 3.5 is opened. The recess 3.8 and the upper tube 3.7 are connected. And upper opening/closing valve 3.5
The tip of the upper tube 3.7 connected to the lower tube 2.
6 is pushed down, the part where the lower opening/closing valve 2.5 and the yoke 2.4 come into contact is separated, and the lower recess 2 .42 and the lower pipe 2.6 are connected. In this way, while the electromagnet 2.3 is energized, the receiving part A
Lower opening/closing valve 2.5 and upper opening/closing valve 3.
5 is opened, so that the compressor section C is connected to the pressure accumulator tank 3.1 of the ventilation section B.

Compressed air is fed into the pressure storage tank 3.1 from the compressor section C to bring the pressure inside the pressure storage tank 3.1 to the required pressure. When the pressure in the accumulator tank 3.1 reaches the required pressure, or when the specified pressure is reached,
Power to the electromagnet is cut off, and the upper and lower open/close valves 2.5
and 3.5 are closed and returned to their original state. That is, the ventilation section B is in a standby state.

The doctor, while sitting, holds the pressure-accumulated ventilation part B for the next medical treatment, puts the pressure accumulation tank 3.1 in the palm of one hand, and presses the on-off adjustment valve 4.3 with his thumb to open it. Tube catheter 5.1
Adjust the air pressure coming out of the tip. Then, the user holds the end of the European tube catheter 5.1 with the index and middle fingers, and performs complicated operations with the three fingers and the palm of the hand.

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 mounting position of the European tube catheter 5.1, the diameter and length of the pressure accumulator tank 3.1, the shape of the leg piece 3.6 and the electromagnet 2.3, or the pressure and position inside the pressure accumulator tank 3.1. The detection method can be optionally replaced with a known method.

Further, the present invention reduces the pressure in the pressure storage tank,
It can also be used as a suction device to suck out pus, etc. from the affected area.

〔Effect of the invention〕

According to the present invention, the air pressure required for one ventilation treatment can be accumulated in the pressure storage tank, so the obstructive hose that was conventionally used is eliminated, and it is now possible to perform treatment in a seated position with one hand.

Additionally, since the European tube catheter was connected to a pressure regulator via a flexible tube, delicate control using the fingertips became possible.

Furthermore, in the recesses of the electromagnet's yoke and leg pieces,
By incorporating the upper and lower opening/closing valves and the compressor connection, the hoseless ventilator can be made smaller and lighter.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an embodiment of the present invention. In the diagram, A...Receiving section (add the first number 2), B
... Ventilation part (add the first number 3 to 5), C...
...compressor section (not shown), 2.
1...Socket, 2.2...Housing, 2.3
... Electromagnet, 2.4 ... Yoke, 2.5 ... Lower on-off valve, 2.6 ... Lower pipe, 3.1 ... Pressure accumulator tank, 3.2 ... Pressure accumulation tank top cover, 3.3 ...Opening, 3.5...Upper opening/closing valve, 3.6...Leg piece,
3.7... Upper pipe, 4.1... Pressure regulator, 4.
2...Safety valve, 4.3...Opening/closing control valve, 5.1...
...European tube catheter (ventilation tube), 5.2...Flexible tube.

Claims (1)

[Scope of Claims] 1. A pressure accumulating tank 3.1 which has an upper opening/closing valve 3.5 that opens and closes by sliding the leg piece 3.6 and is capable of accumulating enough air to ventilate the Eustachian tube. , a pressure regulator 4.1 having an on-off control valve 4.3 that can adjust the pressure on the upper part of the pressure accumulator tank 3.1, and connected to the output part of the pressure regulator 4.1 via a flexible pipe 5.2. a vent pipe 5.1, which is made up of a vent pipe 5.1; a vent part B comprising: a socket 2.1 for receiving the vent part B; and a sensor 2.9 for detecting that the vent part B has entered the socket 2.1. an electromagnet 2.3 that operates for a certain period of time according to a signal from the sensor 2.9 to slide the leg 3.6; an upper recess 2.41 into which the leg 3.6 of the ventilation section B can be inserted and removed; The yoke of the electromagnet 2.3 is provided with a lower recess 2.42 having a lower on-off valve 2.5 that opens and closes in conjunction with the upper on-off valve 3.5 and a compressor connection portion 2.8. 2.4, and a receiving section A consisting of: Air is supplied to the pressure accumulator tank 3.1 via the compressor connection section 2.8, the lower opening/closing valve 2.5, and the upper opening/closing valve 3.5. Compressor C that accumulates pressure
A hoseless ventilator characterized by: 2 Communication between the receiving part A and the ventilation part B is through the tip end surface of the lower pipe 2.6 connected to the lower opening/closing valve 2.5 and the tip of the upper pipe 3.7 connected to the upper opening/closing valve 3.5. 2. The hoseless ventilator according to claim 1, wherein the hoseless ventilator is operated by contacting the ventilator with a surface. 3. Hoseless ventilator according to claim 1 or 2, characterized in that the output to the ventilation pipe 5.1 in the ventilation section B is provided at the upper end of the pressure regulator 4.1.