JP2003038646A - Medical atomizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a medical atomizer which enables an atomized chemical liquid surely to reach a target region and perform atomizing by miniaturizing a diameter in the insertion part of a tube to be inserted to an organism. SOLUTION: This medical atomizer is provided with an atomization catheter 31 having an atomization head unit 31A at the tip side of a flexible tube 30. The atomization head unit 31A is provided with an atomization head 50 having a plurality of atomization parts 50a. The atomization head 50 is constituted of a reflection body 72 formed with liquid storage parts 71 for storing the chemical liquid 53 in response to the atomization parts 50a, a piezoelectric element part 73 arranged on the bottom surface of the reflection body 72 and a nozzle plate 75 formed with a nozzle hole 74 at the opening side of the liquid storage parts 71 in the reflection body 72. In the reflection body 72, reflection walls 71a for reflecting and converging ultrasonic vibration on a part near the nozzle hole 74, which is transmitted to the chemical liquid 53 stored in the liquid storage parts 71, are formed on the inner peripheral surface of each liquid storage part 71.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to
The present invention relates to a medical spray device for spraying an internal organ. [0002] In recent years, medical spray devices have been widely used.
I have. The above-mentioned medical spray device can be used for medicine from inside or outside the body cavity.
A liquid is atomized and sprayed on internal organs. Above medical
The spraying device is, in particular, a device for spraying a drug solution into the lungs.
There are nebulizers and nebulizers called inhera. the above
Nebulizer is used for the treatment of bronchial asthma and is orally sprayed
Things. Also, the nebulizer is connected to the ventilator
Used for severely injured patients who need artificial respiration
There is also. These medical spray devices atomize and spray chemicals
This sprayed drug solution reaches the alveoli of the lungs,
Immediately absorbed by blood vessels, the effect of the drug solution appears quickly
Therefore, it is effective as a supply route of the therapeutic liquid. However, a medicinal solution can be efficiently delivered to organs in the body cavity.
In order to administer the drug solution,
It is good to spray as close as possible. Such a doctor
Some spray devices use a spray catheter. Up
The nebulization catheter can be inserted into or out of the body cavity.
Spray the chemical supplied from the supply means onto the attachable flexible tube.
And spraying means for spraying. [0004] On the other hand, such a medical spray device is, for example, an example.
For example, it is described in JP-A-2-142530.
The end of the endoscope inserted into the body cavity
Steps have been proposed. The endoscope is
As spraying means, toward the piezoelectric element provided at the tip of the insertion section
The chemical solution is dropped from the opening of the air / water supply conduit formed by
Atomizing and spraying chemicals by ultrasonic vibration generated by piezoelectric elements
Configuration. [0005] However, the above-mentioned features
The medical spray device described in Japanese Unexamined Patent Publication No.
Since the spraying means is provided integrally with the endoscope,
The distal end of the insertion section of the endoscope is thickened and inserted into a narrow lumen.
Difficult to enter. The above-mentioned Japanese Patent Application Laid-Open No. 2-142530 is also disclosed.
The medical spraying device according to the above, may be dropped on the piezoelectric element
Is configured to atomize and spray the chemical. others
The medical jet described in JP-A-2-142530 described above
A fogging device has a large particle size of the chemical solution to be atomized,
Difficult to reach the drug solution into the small, meandering lumen
It is difficult. The above-mentioned Japanese Patent Application Laid-Open No. 2-142530 is also disclosed.
In the medical spraying device described in the above, the state in which the chemical solution is dropped on the piezoelectric element
Does not determine the direction of spraying the liquid
Chemicals fly in various directions, and
The chemical solution adheres to the minute, and the sprayed chemical solution is wasted. The present invention has been made in view of these circumstances.
Therefore, the diameter of the insertion portion of the tube inserted into the living body is small.
Make sure that the atomized chemical liquid reaches the target
It is an object of the present invention to provide a mistable medical spraying device. [0009] In order to achieve the above object,
The medical spray device of the present invention stores a chemical solution and stores the stored solution.
Ultrasonic waves are reflected and focused near the spray port in the chemical to atomize the chemical
And spraying means for spraying.
For use from the distal end of a tube that can be inserted into
Of the spraying unit body located outside the body
It is characterized by having been provided. With this configuration,
The diameter of the insertion part of the tube inserted into the
Medical spray that allows chemical liquid to reach the target site and spray
Implement the device. [0010] As a tube that can be inserted into a living body,
Examples include endoscopes and catheters. Also ex vivo
The spraying unit body used from the side
Those usable for internal use, intranasal use and the like can be mentioned. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;
An embodiment will be described. (First Embodiment) FIGS. 1 to 15 show a first embodiment of the present invention.
FIG. 1 shows a first embodiment of the present invention.
FIG. 2 is an overall configuration diagram showing a medical spray system provided with
FIG. 2 is an external view illustrating a flexible tube distal end side of the nebulization catheter 1;
FIG. 3 illustrates the spray head unit and the flexible tube of FIG.
FIG. 4 is an enlarged sectional view of the spray head of FIG. 2 and FIG.
5 is a concept explaining an ink jet type spray flying method.
FIG. 6 and FIG. 6 illustrate a capillary type spray flying method.
FIG. 2 is a conceptual diagram, and FIG.
7A is a cross-sectional view of FIG. 7A, and FIG.
Cross section showing the arrangement of the liquid feed line and the liquid suction line when
FIG. 7 (b) is a liquid feed pipe provided with one spraying unit.
FIG. 8 is a cross-sectional view showing the arrangement of the channels and the liquid suction lines, and FIG.
FIG. 8 (a) is an explanatory view of a case where they are arranged in a radial pattern, and FIG.
Explanatory drawing when a plurality of fog parts are provided radially, FIG.
(B) One spraying part is provided near the center of the spraying head.
FIG. 9 shows the case where the spray units are arranged in a grid.
FIG. 9A is a diagram illustrating a case where a plurality of spray portions are radially formed.
FIG. 9B is a diagram illustrating a case where a plurality of spray units are provided.
The spray sections are provided in a grid and these spray sections are different from each other.
When a nozzle hole with a small nozzle diameter is formed and mixed and arranged
FIG. 10 shows a case where one spray unit has a different nozzle diameter.
FIG. 11 is an explanatory view showing a case where a plurality of nozzle holes are formed.
Block diagram showing the configuration of the control device of FIG.
13 is a graph showing a drive signal output from the drive circuit.
FIG. 12 shows a driving signal for pulse driving the piezoelectric element.
FIG. 13 is a graph showing a primary resonance or a secondary resonance of a piezoelectric element.
FIG. 14 is a graph showing drive signals to be driven, and FIG.
Of a spray head unit showing a first modification of the embodiment
FIG. 14A is a cross section of the spray head unit.
FIG. 14 (b) is a diagram showing the appearance of FIG. 14 (a) viewed from the direction B.
FIG. 15 shows a second modification of the first embodiment.
It is sectional drawing of a nebulization catheter. As shown in FIG. 1, a medical spray system 1
Endoscope device 2 and medical spray device (hereinafter simply referred to as spray device)
And 3. The medical spray system according to the present embodiment
1 is configured to be performed under the endoscope apparatus.
Can be combined with the endoscope device 2 without using the spray device 3
The system can be configured only by itself. First, the endoscope device 2 will be described. Previous
The endoscope apparatus 2 includes an electronic endoscope provided with an imaging unit (not shown).
An endoscope (hereinafter simply referred to as an endoscope) 2A and the endoscope 2A
It is detachably connected and supplies illumination light to the endoscope 2A.
Through the light source device 4, the endoscope 2A and the connection cord 5a
To control the imaging means of the endoscope 2A
At the same time, the signal obtained from this imaging means is processed and
Video processor 5 for outputting a typical video signal, and
The video signal from the video processor 5 is input, and the endoscope image
And a monitor 6 for displaying the same. In addition,
Nita 6, video processor 5, light source device 6,
They are connected by connection codes 7 and 8. The endoscope 2A is an elongated, flexible
An insertion portion 11 and an operation provided on the proximal end side of the insertion portion 11
Working part 12, the flexibility extending from the side of this operating part 12
And a universal cord 13
Provided at the end of the light source 13 and detachable from the light source device 4
Connector portion 14 that can be connected to
Extends to the side to allow the connection cord 5a to be detachably connected
And a functional electrical connector 15. The insert
The inlet 11 is a flexible tube which is a flexible member having flexibility.
Part 16 and a curve provided on the distal end side of the flexible tube part 16
Possible bending portion 17 and hard tip 1 provided at the tip
And 8. In addition, the said tip part 18 is observed.
Optical system 18a and illustration on the side of observation optical system 18a
Image pickup device and the illumination optical system 18b are not provided.
You. Further, the distal end portion 18 is provided with a treatment instrument insertion chamber (to be described later).
An opening 18c of the channel 23 is provided. The operation section 12 is provided with a bending operation knob 21.
Operating the bending operation knob 21
Thus, the bending operation of the bending portion 17 can be performed. Also before
The operating section 12 has a treatment tool insertion port 22 near this front end.
For insertion of the treatment tool inserted inside
Insert the distal end side of the treatment instrument through the channel 23 into the distal end of the insertion section.
It can protrude from the opening 18c of the portion 18. Real truth
In the present embodiment, a spraying device (described later) constituting the spraying device 3 will be described.
The catheter is inserted through the treatment instrument insertion port 22 through the treatment instrument.
Through the insertion channel 23 to open the distal end portion 18 of the insertion portion.
The distal end protrudes from the mouth 18c. Ma
In addition, the operation unit 12 remotely controls the video processor 5.
A plurality of operation unit switches 24 for operating are provided.
The operation unit switch 24 is operated by being pressed.
The video signal is generated by the video processor 5 according to the setting of the video processor 5.
Output to external output terminal 5b of processor 5
Has become. The external output terminal 5b is connected to the spray device.
To be connected to a control device to be described later,
ing. The endoscope 2A emits light from the light source device 4.
Bright light is supplied. The light source device 4
The illumination light supplied from the camera is connected to a light guide (not shown) in the endoscope.
The subject is illuminated from the illumination window 18b via the guide
It has become. The illuminated image of the subject is
2A from the observation optical system 18a at the distal end portion 18 of the insertion portion.
To be captured by the imaging device.
You. The video processor 5 captures an image of the endoscope 2A.
An image signal from the device is processed by a signal processing circuit (not shown).
And transmit it to the monitor 6 to display the endoscope image.
It has become. Next, the spraying device 3 will be described.
The spraying device 3 is an elongated and soft flexible device that can be inserted into a body cavity.
Provided on the distal end side of the flexible tube 30,
With a spray head unit 31A for atomizing and spraying
The mist catheter 31 and the detachable
Connection via a connection cord 32 connecting the
The spray head unit 31A of the mist catheter 31 is controlled.
The control device 33 mainly controls the control device 33. In addition, before
The control device 33 includes a hand switch 34a and a foot switch.
Switch detachably connected to an external input switch 34 such as a switch 34b.
It is possible. The nebulizing catheter 31 is connected to the flexible tube 3.
0 to the connector section 35 provided at the rear end of the connection cord.
Is connected detachably, and the
It is adapted to be connected to the connector section 36. In addition, this
Nebulization catheter 31, connection cord 32 and control device
The device 33 controls the spray head unit 31A as described later.
Wiring for control and the spray head unit 31A
Piping and the like for supplying the chemical solution are
Connect them so that they can be connected together.
The connector 35 and the connector 36 are configured. Said
The spraying catheter 31 is provided at the distal end side of the flexible tube 30.
Spray head unit 31A can be attached detachably
(See FIG. 2). The control device 33 includes a front panel
The spray mode indicator 41 and the spray mode selection switch
Switch 42, spray level indicator 43, spray level
Setting switch 44 and spray stop switch (not shown)
And a power switch 45. In addition, this implementation
In the embodiment, the spray mode indicator 41 and the spray mode
The mode selection switch 42 is provided integrally. Also,
The front panel of the control device 33 is
Connect the external output terminal 5b of the processor 5 and a connection cord (not shown).
The external input terminal 46 connectable through the
Connector receiving portion 47 detachably connectable to switch 34
Is provided. Next, a detailed configuration of the nebulizing catheter 31 will be described.
Will be described. As shown in FIG. 2 and FIG.
The spray unit 50 is attached to the storage unit 31A.
Spray head base 51, spray head 50 and spray
A spray head cover 52 covering the head base 51;
Is done. The spray head base 51 is provided with the flexible tube 3.
Also serves as a detachable part that can be detachably attached to the tip of
I have. The spray head cover 52 is an elastic member.
And the tip is more than the spray head 50.
It is provided to protrude inside the body cavity (outside). And said
The spray head cover 52 elastically holds the spray head 50.
Contact fixed. And the spray head 50 is
The back side is a space. This allows the injection
The fog head 50 is provided with extra members such as fixing members on the rear side.
The ultrasonic wave generated by the piezoelectric element described later
Attenuation can be suppressed. The spray head 50 includes a plurality of spray units 50.
a. It should be noted that in FIG.
C, only two spray units 50a are shown for convenience of the drawing.
ing. The configuration of the spray head 50 will be described later. The spray head unit 31A is provided with
Liquid supply conduits 54a, 54 for supplying the chemical liquid 53 to the mist head 50
4b and excess chemical liquid 53 from the spray head 50.
Liquid suction pipes 55a and 55b are provided. This
These liquid sending pipes 54a, 54b and liquid suction pipes 55a, 55
b is connected to the side rear end of the spray head 50.
You. These liquid supply pipes 54a and 54b and liquid suction pipe 55
a, 55b are inserted into the spray head base 51.
It is fixed through and protrudes, and its protruding tip is formed in a needle shape
Have been. Further, the spray head unit 31A is
According to the plurality of spray units 50a of the spray head 50
A wiring 56 for inputting a drive signal is provided. these
The wiring 56 is connected to the spray head driving connector 57.
ing. In addition, in FIG. 3, only three are shown on account of drawing.
ing. Further, the spray head unit 31A includes:
According to the plurality of spray units 50a of the spray head 50
A plurality of sensors 58 each for detecting a spray state are provided.
ing. The wiring 59 extending from these sensors 58 is
Connected to the sensor connector 60. The sensor 58
Is composed of, for example, a temperature sensor. As a temperature sensor
Are sensors using a piezoelectric element, thermistors, thermocouples, etc.
It is. In FIG. 3, one sensor is provided for convenience of the drawing.
Only two wires are shown. The flexible tube 30 is connected to the flexible tube 30 as described above.
The connector part 35 to which the connection cord 32 is connected,
The spray head base of the spray head unit 31A
A flexible tube attaching / detaching portion 61 to which 51 is detachably attached;
And a tube 62. The flexible tube attaching / detaching portion 61
Is the liquid feed line 54 of the spray head unit 31A.
a, 54b and liquid suction pipes 55a, 55b, respectively
Fitting portions 63a to 63d are provided. These fits
The joining portions 63a to 63d are connected to the liquid sending pipelines 54a, 54b and
And slightly smaller than the outer diameter of the suction pipes 55a and 55b
Have been. Also, in the middle of these fitting portions 63a to 63d.
Are provided with shielding walls 64a to 64d. The tube 62 includes the fitting portions 63a,
A chemical supply pipe 65 is provided on an extension of 63b.
Further, the tube 62 includes the fitting portions 63c and 63d.
A chemical solution discharge line 66 is provided on the extension of the above. these
The chemical supply line 65 and the chemical discharge line 66 are made of a porous member.
67 are filled. This porous member 67 is made of
It may be provided over the entire length of the liquid conduits 65a to 65d,
It may be provided in a predetermined range. This porous member 67 is, for example,
For example, it is a foamed resin such as sponge or urethane. This porous
The spray head unit is attached to the flexible tube 30 by the member 67.
When the nozzle 31A is attached, the spray head 50
Does not flow out from the nozzle hole described later.
It has become. The flexible tube attaching / detaching portion 61 is provided with the spray
Spray head drive connector 5 of head unit 31A
7. Connector for connecting to sensor connector 60
Receiving parts 68 and 69 are provided. These connector receptacles
The wirings 68a, 69a extending from the connecting portions 68, 69
The wiring conduits 68b, 69b provided in the tube 62
Each is inserted. Spray provided with wiring and piping as described above
The catheter 31 has the spray head unit 31A in front.
Attached to the flexible tube attaching / detaching portion 61 of the flexible tube portion 30.
And the connector portion 35 is connected to the connection cord 32.
Once installed, the wiring and piping described above will be connected.
Swelling. And the nebulization catheter 31 is
The connection cord 32 is connected to the connector 36 of the control device 33.
By being connected, wiring and piping are connected to the control device 33.
It is to be continued. The arrangement of the control device 33
Wires and pipes will be described later. Next, the detailed structure of the spray head 50 will be described.
I will tell. As shown in FIG. 4, the spray head 50 is
The liquid medicine 53 is stored in accordance with the plurality of spray units 50a.
A reflector 72 having a liquid storage portion 71 formed therein, and the reflector 7
2 and a piezoelectric element 73 provided on the bottom
A nozzle plug having a nozzle hole 74 formed on the opening side of the liquid storage 71
And a rate 75. The reflector 72 is provided on the inner peripheral surface of the liquid storage 71.
Is transmitted to the chemical solution 53 stored in the storage portion 71
To reflect and focus the ultrasonic vibration near the nozzle hole 74
Forms a parabolic reflective wall 71a. this
The side of the reflecting wall 71a is connected to the liquid feeding conduits 54a, 54b or
The liquid suction pipes 55a and 55b are connected to communicate with each other.
A communication path 75 is formed between the two. And the drug solution 53
Is connected to one of the spray units 50 from the liquid feeding pipes 54a and 54b.
a and sprayed through the communication passage 75
Is supplied to the section 50a and discharged from the liquid suction pipes 55a and 55b.
It is supposed to be. The piezoelectric element 73 generates an ultrasonic vibration.
And one piezoelectric element 81
One common electrode 82 provided on the vibration generation side,
A resin film 83 formed on the vibration generation side of the common electrode 82;
On the back side of one piezoelectric element 81, the shape of the liquid storage section 71 is
And a plurality of electrodes 84 provided in a range to be formed.
You. The piezoelectric element 81 is connected to the control device 33.
A sine wave intermittent from a drive circuit described below
Drives a square wave drive signal at a given voltage, frequency, and pulse number.
It is applied and driven. The piezoelectric element
81 is a primary resonance mode (spray mode A) or a secondary resonance mode
Mode (spray mode B) or pulse mode (spray mode)
Excited in C). The piezoelectric element 81 is connected to the electrode 8
Driven to be divided by the number of 4
The sound waves 85 are respectively applied to the chemicals 53 in the corresponding liquid reservoirs 71.
On the other hand, the light is transmitted almost on a plane. Follow
The piezoelectric element 81 is moved forward by the number of the electrodes 84.
The driving is performed in a divided manner according to the plurality of spray units 50a.
ing. Then, the liquid is transmitted to the chemical 53 in the liquid storage 71.
The ultrasonic wave is reflected by the reflecting wall 71a and
The light is converged near 74. This reflection convergence
Due to the ultrasonic waves 85, the chemical liquid 53 is dispensed into the nozzle holes 74.
It is designed to be atomized and sprayed in the form of a jet
You. At this time, the spraying of the sprayed chemical liquid 53 is performed.
The method is as shown in FIG. 5 and FIG.
And the capillary system. Inn shown in FIG.
The jet method is similar to a general inkjet head.
Liquid meniscus 90 formed in the nozzle hole 74 as described above.
Phenomenon of Injecting (Dropping) the Chemical 53 from the Center
(The satellite drop 92 follows the main drop 91
Is a phenomenon that is formed). On the other hand, as shown in FIG.
The capillary method uses a liquid formed in the nozzle hole 74.
Capillary waves are generated on the surface of the meniscus 90,
Capillary waves cause minute
This is a phenomenon in which fine droplets 93 are generated and fly. The above-mentioned ink jet system is a main drop
91 becomes the spray particle diameter equivalent to the nozzle hole 74 diameter,
Capillary method can obtain spray particle size of several μm
You. The spray head 50 is, for example,
When four spray units 50a are provided, the liquid feeding pipeline 54
a, 54b and the liquid suction pipes 55a, 55b are shown in FIG.
It is provided as shown in FIG. The said spray head
50 is, for example, a case where one spraying unit 50a is provided.
In this case, the liquid supply lines 54a and 54b and the liquid absorption line 55
a, 55b are provided as shown in FIG. Soshi
The chemical solution 53 is supplied from the liquid supply pipes 54a and 54b to the spray section 50.
a and discharged to the liquid suction pipes 55a and 55b.
Swelling. The spraying section 50a is shown in FIG.
It may be arranged radially as shown in FIG.
It may be arranged in a shape. 8 and 9 show the spray unit 50.
a depending on the position of the nozzle hole 74 formed in
The position of the portion 50a is shown. FIG. 8A shows the spray unit 5.
0a are provided radially. On the other hand, FIG.
Is provided with one spray unit 50a. FIG. 9A shows that the spraying section 50a has a plurality of grids.
It is provided in. On the other hand, FIG.
A plurality of spray portions 50a are provided in a plurality of grids, and
Nozzle holes 74 having different large and small nozzle diameters are formed
Are arranged. In the case of FIG. 9B, the control device 3
3 is provided with a control circuit for a nozzle having a large nozzle diameter.
Only the spraying part 50a having the chisel hole 74 is driven.
Controllable and vice versa
Only the spraying part 50a forming the nozzle hole 74 is driven
It can be controlled to Of course, the control circuit
The spray unit 50a can be controlled simultaneously and under different driving conditions.
is there. Further, as shown in FIG.
0a, a plurality of nozzle holes 74b having different nozzle diameters are formed,
They may be provided radially or in a grid. In this case, the control circuit
By driving one spray unit 50a, different
Particle size, and the particle size distribution expands. Of course, the control circuit
Is to operate these spray units 50a simultaneously and under different driving conditions.
It can be controlled. Next, the detailed configuration of the control device 33 will be described.
Will be explained. As shown in FIG. 11, the control device 33 includes:
Indicators and switches described on the front panel
And the external input terminals (41 to 47) are the control circuit 101.
To be controlled by the control circuit 101.
ing. In addition, it is noted on the spray mode indicator 41.
The meaning of "A", "B" and "C" listed
Indicates that “spray head 50 is in spray mode A (primary
Drive in spray mode), and
D (secondary resonance mode) ”,“ spray head 5
0 in spray mode C (pulse mode) "
Means. Further, the spray mode selection switch 42
Are provided according to the spray modes A to C. The control device 33 controls that the chemical tank 102
It can be detachably attached to the chemical liquid tank attaching / detaching part 103
Swelling. The chemical liquid tank attaching / detaching portion 103 is provided with a chemical liquid.
An identification section 104 is provided, and the
The chemical solution tank 10 is identified by the
2 are identified. The chemical liquid identification unit 10
4 is connected to the control circuit 101 and outputs an identification result
It is supposed to. The chemical liquid identification section 104 and the chemical liquid identification index 1
05 is, for example, identification of the chemical liquid in the chemical tank 102, for example.
A dip switch, ROM, resistor, etc.
Connector that can be connected to it as the chemical liquid identification unit 104
Is raised. In addition, the chemical liquid identification index 105
On the outer surface of the tank 102, a pattern of an insulating portion and a conductive portion is provided.
The electrode plate in contact with these patterns is
104, depending on the conduction and insulation pattern between the electrode plates
The chemical 53 may be identified. Also, the chemical identification index
105, a bar code is used,
Alternatively, a barcode reader may be used. The controller 33 controls the spray head 50
For driving each of the plurality of spray units 50a.
Drive circuits 106 and the chemical liquid 53
Pump 107 for supplying the liquid and the spray head
Liquid suction pump 1 for discharging excess chemical solution 53 from 50
08 and a setting for storing setting conditions for controlling these.
A constant storage unit 109 is provided.
It is connected. The drive circuit 106 is extended
Wiring 111 is connected to the connector 36.
You. Reference numeral 112 denotes a wiring connected to the sensor 58.
It is. The liquid sending pump 107 is connected to the chemical tank.
A pipe 113 is connected to the attachment / detachment section 103,
The chemical solution 53 in the chemical solution tank 102 into the spray head.
It is configured to be able to be supplied to the node 50. Also, similarly
A liquid suction pump 108 is also provided in the chemical liquid tank attaching / detaching section 103.
A pipe 115 is connected, and the spray head is connected via a pipe 116.
The excess chemical solution 53 from the reservoir 50 is stored in the chemical solution tank 102.
It is configured so that it can be discharged to The pipe 114 and the
The end of the pipe 116 extends to the connector section 36.
You. The control device provided with the wiring and the piping as described above
The connection 33 is configured such that the connection cord 32 is
By being connected, the injection
The mist catheter 31 is connected to the mist catheter 31. Said
The driving circuit 106 is intermittent as shown in FIG. 12 or FIG.
To generate a square or sine wave drive signal
Has become. In this embodiment, only rectangular waves are shown.
However, it may be a sine wave. The drive signal shown in FIG.
1 is driven by a pulse. The waveform of this drive signal
Are the frequency 1 / t and the driving voltage V
Can be raised. The drive signal shown in FIG.
81, the ink jet as described above with reference to FIG.
This is a jet-type spray flying method. On the other hand, the drive signal shown in FIG.
The element 81 is driven by primary resonance or secondary resonance.
You. The parameters that define the waveform of this drive signal are basically
Frequency 1 / t, drive voltage V, per drive of intermittent drive
The wave number N and the intermittent frequency 1 / T are increased. In this FIG.
When the drive signal shown is supplied to the piezoelectric element 81, FIG.
As described above, this is a capillary spraying method.
You. The driving circuit 106 has a secondary resonance or higher.
May be generated. Also,
The drive circuit 106 is, for example, slightly shifted from the primary resonance.
A drive signal may be generated. in this case,
When this drive signal is supplied to the piezoelectric element 81, the spray unit 5
0a means that a scattered spray particle size can be obtained.
You. Here, in order to obtain the required spray amount, it is necessary to simply
Increase the wave number to increase the amount of spray per hour
Need to be done. However, in this case, setting the wave number
Possible range is limited because the amount of heat generated by piezoelectric element 81 increases
Is done. In addition, the reach of the atomized chemical solution 53 is increased.
Frequency to reduce the spray particle size.
To increase or increase the flow rate of the jet,
Increase the capillary wave amplitude by increasing the voltage
There is a need. However, in this case, the frequency or voltage
Is set when the heat value of the piezoelectric element 81 increases.
The liquid meniscus is unstable
You. These parameters are correlated and these parameters
Limited range of total energy provided by the meter
You. By setting this total energy to a predetermined level,
The distribution of fog volume and spray particle size is limited.
You. In the present embodiment, the setting of these parameters
The constant condition is set for each of the spray modes A to C and the setting is performed.
It is stored in the storage unit 109. And the control circuit 10
1 according to the selected spray modes A to C,
Read the parameter setting conditions stored in the storage unit 109
The drive circuit based on the read setting conditions.
Select a plurality of spray units 50a by selectively controlling the path 106
Drive. As a result,
In the embodiment, the desired spray amount and spray particle size or particle size distribution,
The arrival distance and the like can be obtained. Further, the control circuit 101 controls the sensor 58
The spray state of the spray unit 50a is detected by the
Desired spray state in the spray modes A to C based on the state
The drive circuit 106 is selectively controlled so that
It has become. For example, the control circuit 101
It is determined that the drive becomes impossible by the detection of the sensor 58.
The driving of the spraying part 50a to be stopped is stopped.
Even if the spraying unit 50a determined to be capable is selectively driven,
good. Further, the control circuit 101 outputs the
The fog unit 50a may be notified to the user. The present embodiment configured as described above has the following structure.
A spray particle size of μm or less can be obtained.
Can be sprayed. For this reason, in the present embodiment,
The drug solution 53 is applied to a target site having a long reach, for example, a deep lung.
Can be applied thinly and uniformly. In addition, the form of this implementation
Since the spray head 50 can be composed of small parts,
It can be made thinner and smaller. Therefore, in the present embodiment,
The diameter of the insertion portion of the flexible tube 30 can be reduced, and
Chemical liquid 53 can be sprayed by reliably reaching the target site
It is. Next, FIG. 14 shows the first embodiment of the first embodiment.
The following shows a modified example. As shown in FIG.
G 31B arranges the spraying section 50a to the side of the spraying catheter.
The spray head 50B is configured to be placed. The spray section 50a is provided with the piezoelectric element section 73.
Above and below the piezoelectric element 73.
On the side where the nebulization catheter is located
To form a nozzle hole 74.
You. Reference numeral 121a indicates that the liquid medicine 53 is supplied to the liquid storage section 71.
A liquid sending pipeline or a liquid absorbing pipeline to be discharged, and reference numeral 121b is
This is a wiring conduit. Further, the spray head unit 31B comprises:
To change the spray direction from the spray unit 50a,
An air supply line 122 for supplying a strike gas is provided. this
The air supply line 122 is fitted toward the vicinity of the nozzle hole 74.
The opening 122a is formed so as to be able to supply the strike gas.
In this case, air is supplied to the connection cord 32 as shown in FIG.
Section 32a, and an air pump 32b
Connected to the flexible tube 30 and the connection cord 32.
It is configured to be able to supply air through an air supply pipe (not shown).
You. With this, when the air supply is stopped, it is sprayed to the side,
By strengthening it, it is possible to spray forward. Toes
In the first modified example, the target is sprayed on the body cavity wall.
It becomes possible. FIG. 15 shows a second embodiment of the present invention.
The following shows a modified example. As shown in FIG.
30 has a plurality of spray units 50a arranged sideways to spray
Nozzle 50C of the spray section 50a.
An air supply line 131 is provided on the side. Note that reference numeral 132a is
Reference numeral 132b denotes a wiring conduit. As a result, the second modified example is further improved
It can be formed into a mold, and is sprayed and atomized from a plurality of spray portions 50a.
The liquid medicine 53 to be atomized is further distant by the assist gas.
To the target part and spray with the assist gas.
The mist head 50C can be radiated and air-cooled. Ma
It is also possible to increase the spray with multiple heads.
You. (Second Embodiment) FIG. 16 and FIG.
FIG. 16 shows a second embodiment of the present invention.
It is explanatory drawing which shows the nebulization catheter of 2nd Embodiment,
FIG. 16A is a cross-sectional view showing the tip side of the nebulization catheter,
FIG. 16B is a sectional view taken along line BB of FIG.
12 shows a modification of the second embodiment of the present invention,
FIG. 4 is a cross-sectional view showing a tip end side of the barrel. In the first embodiment, one spray head is used.
Although it is configured to have a plurality of spray portions 50a in the
In the second embodiment, one jet having one spray section 50a is provided.
A mist head is integrally provided on the distal end side of the flexible tube 30.
To achieve. Otherwise, it is almost the same as the first embodiment.
Therefore, the description is omitted, and the same components are denoted by the same reference numerals.
I will tell. That is, as shown in FIGS.
The nebulizing catheter 140 of the second embodiment is
One spraying unit substantially similar to that described in the first embodiment
The spray head 141 having the 50a is attached to the tip of the flexible tube 30.
It is configured integrally on the end side. The spray head 141 is connected to the spray unit 50.
The liquid chemical 53 is in contact with the back side of the piezoelectric
A chemical solution conduit 142 is provided to touch. this child
As a result, the piezoelectric element 73 is cooled,
Breakage and reduction of spray amount can be prevented. The spray head 141 is provided with the spray
The elastic between the head cover 52 and the nozzle plate 75
A sex member 143 is provided. This allows the elasticity
The member 143 is unnecessary for the components of the spray unit 50a.
Vibration is prevented from being transmitted, and the connection of these components
This prevents the adhesive and the like from peeling off. In addition, reference numeral 144
Is a liquid feeding pipeline for supplying and discharging the chemical solution 53 to and from the liquid storage unit 71 or
This is a suction pipe, and only one is shown in the figure.
It may be provided. In addition, the nebulization catheter 140 is
The wiring 56 connected to the piezoelectric element 73 is inserted and provided.
A wiring conduit 145 is provided. The second embodiment constructed as described above
Provided a spray head 141 having one spray unit 50a.
To form the nebulization catheter 140, the first
It is possible to further reduce the size compared to the embodiment. FIG. 17 shows a modification of the second embodiment.
You. As shown in FIG. 17, the nebulization catheter 150 has a cylindrical shape.
Element portion 153 having a piezoelectric element 152 in the form of a reflector
The spray head 151 is provided on the 72 side portion.
You. The piezoelectric element section 153 is connected to the vibration generating side with a liquid storage section.
It is arranged circumferentially within 71 as desired. And
The liquid storage portion 71 of the reflector 72 is configured such that the base end thereof is directly
It is communicated with the conduit 154 so that the chemical liquid 53 is supplied.
ing. Although not shown, the piezoelectric element 153 is in contact with the piezoelectric element 153.
The wiring to be continued is the same as that described with reference to FIG.
To be inserted and arranged. The spray head 151 includes the piezoelectric element section.
When a drive signal is supplied to the piezoelectric element unit 153,
3 is driven to generate ultrasonic vibration. This generated super sound
The wave vibration is transmitted to the drug solution 53 in the liquid storage 71,
In the vicinity of the center of the liquid storage 71, the liquid is converted in the longitudinal direction,
One is transmitted to the nozzle hole 74 side and the other is transmitted to the base end side
Is done. The ultrasonic vibration transmitted to the proximal end is
71 is reflected by the reflecting portion 155 formed on the base end side,
The light is transmitted to the hole 74 side. These nozzles
The ultrasonic vibration transmitted to the hole 74 side is near the nozzle hole 74.
Is converged. This reflected and converged super
The chemical 53 is atomized from the nozzle hole 74 by the sonic vibration.
And sprayed in a jet. This result
As a result, a modification of the second embodiment is a modification of the second embodiment.
Almost the same effects as in the embodiment can be obtained. (Third Embodiment) FIG. 18 shows a third embodiment of the present invention.
3 shows a tip end of a spray head unit according to a third embodiment.
FIG. 18 (a) is an explanatory view of the spray head unit.
FIG. 18B is a side sectional view of the tip portion, and FIG.
It is a front view. In the first and second embodiments, one injection
Although a fog head is provided, the third embodiment is used.
Is provided with a plurality of spray heads. Otherwise, above
The description is omitted because it is almost the same as that of the first embodiment.
The same components will be described with the same reference numerals. That is, as shown in FIGS.
The spray head unit 161 has a spray head
161A to 161E are provided. The spray head
161A, the spray direction is the spray head unit 16
1 is the longitudinal axis direction. In addition, another spray head 161B
161E are the other spray directions.
In FIGS. 18A and 18B, the spray head unit is used.
The head is directed toward the outer diameter side of the spray head 161.
61A and the other heads 161B to 161E.
You may provide so that a spray direction may cross. The spray head unit 161 is
Supply drive signal to each of fog heads 161A to 161E
Wiring 162a to 162e to be supplied and
Liquid conduits 163a to 163e are provided. Note that FIG.
8 (a), wirings 162a to 162c and conduit 163a
163c are shown, and others are omitted. The distribution
The lines 162a to 162e may be combined into one wiring.
No. The pipes 163a to 163e are one pipe.
You may put together. Drive the spray head unit 161
The moving control device is provided with a spraying head (not shown).
It is appropriately configured depending on the number and the number of the liquid feeding pipelines. The spray head unit configured as described above
The nebulization catheter having the first embodiment 161 has the configuration of the first embodiment.
Used in the same way as the state. Then, the external input switch 34
Alternatively, each spray head can be set using a selection switch (not shown) on the control device.
Select to spray. For example, the drug solution 53 is applied to the wall of the body cavity.
If it is desired to deposit, the spray heads 161B to 161E
Select one of them and drive. When spraying forward,
The fog head 161A is driven. Spray of spray head 161A
If the other head is configured to face the extended line in the fog direction,
Drives all heads if a large amount of spray is required
If the amount is small, the spray head 161A is driven.
You. As a result, in the third embodiment,
A plurality of spray heads 161A to 161E facing
Provided, and selectively use these spray heads 161A to 161E.
Drive unit to select the spray direction.
161 can be realized. As a result, the third embodiment
For example, if you want to spray the body cavity wall,
If you select a spray head facing the outer circumference of the
Because it is good, it can be sprayed evenly around the body cavity,
It is suitable as a spray head unit for bronchial anesthesia. (Fourth Embodiment) FIGS. 19 to 23
FIG. 19 relates to a fourth embodiment of the present invention, and FIG.
FIG. 20 is an overall configuration diagram showing a spray device according to a fourth embodiment.
Is a schematic explanatory view showing the spray unit of FIG. 19, and FIG.
FIG. 23 is a view showing a modification of the fourth embodiment of the present invention.
FIG. 21 is a sectional view of the spray unit, and FIG.
Adapter is detachably attached to the spray unit in Fig. 21
FIG. 22 (a) shows an intraoral adapter.
Sectional view when attached, FIG. 22 (b) shows an in-ear adapter
FIG. 22 (c) is a cross-sectional view when the camera is attached, and FIG.
FIG. 23 is a cross-sectional view of the adapter shown in FIG.
FIG. 7 is an explanatory view showing a method of using the spray unit with the attached.
FIG. 23 (a) shows the method of using FIG. 22 (a).
FIG. 23 (b) shows the method of using FIG. 22 (b).
FIG. 23 (c) shows the method of using FIG. 22 (c).
FIG. In the first to third embodiments, the spray head is used.
And the spray unit at the tip of the flexible tube
A fourth embodiment of the present invention, which constitutes a nebulization catheter.
Is provided with a spray head unit at the base end of the flexible tube.
Construct a catheter. Other configurations are the same as in the ninth embodiment.
The description is omitted because it is almost the same as the embodiment, and the same configuration is adopted.
Will be described with the same reference numerals. As shown in FIG. 19, in the fourth embodiment,
The spray device 180 is detachably attached to the proximal end side of the flexible tube 181.
Spray cassette with attached spray unit 182
And the nebulization unit of the nebulization catheter 183.
182 via a connection cord 184a.
Control the spray unit 182 of the spray catheter 183
And a control device 184. The control device 18
4 is an assist gas according to the timing of expiration and inspiration
A breathing circuit (not shown) for supplying
Through an assist gas line (not shown) provided in the
To supply the assist gas. The spray unit 182 is a spray head unit.
It is composed of a knit 185 and a chemical tank unit 186.
You. The spray head unit 185 is connected to the flexible tube 18.
1 can be detachably attached to the base end side. Also before
The chemical storage tank unit 186 is provided with the spray head unit.
Can be detachably attached to the base end side of
Spray head described later provided in the spray head unit 185 of FIG.
Is configured to be able to supply a chemical solution 53 to the liquid crystal. As shown in FIG.
2 is an assist gas line 1 communicating with the flexible tube 181
On the side of 89, the momentum of the jet of the sprayed chemical 53
As described in the first embodiment so as to increase
A similar spray head 187 is provided. The spray
A plurality of heads 187 may be provided.
A plurality may be provided. The reference numeral 188a indicates the liquid storage 71.
A liquid sending pipeline or a liquid absorbing pipeline for supplying and discharging the chemical solution 53,
Reference numeral 188b is a wiring conduit. Thus, in the present embodiment, the spray head
Spray unit 185 is provided on the proximal end side of the flexible tube 181.
Since it is a catheter, it can be inserted into a body cavity.
The flexible tube 181 can be made thin, and the spray head 18
The chemical liquid atomized and sprayed from 7 by the assist gas
It is possible to reach a further distant target part. FIGS. 21 to 23 show the fourth embodiment.
The following shows a modified example. As shown in FIG.
2B can detachably attach an adapter to be described later
An adapter attachment / detachment unit 191 is provided to configure the spray head 187B.
Has formed. Note that reference numeral 192a is a liquid feeding pipeline,
Reference numeral 192b is a liquid suction pipe. Also, reference numeral 192c indicates the arrangement.
This is a line pipe. The spray unit 182 is connected to the adapter 19
3, the intraoral adapter 193 shown in FIG.
A, the in-ear adapter 193B shown in FIG.
2 (c), the intranasal adapter 193C
It is configured to be detachably attached to the detachable part 191.
I have. Then, the mouth adapter 193A is attached.
As shown in FIG.
Used. Spray with in-ear adapter 193B attached
The unit 182 is used as shown in FIG.
You. Spray unit with intranasal adapter 193C
182 is used as shown in FIG. this
In this modification, the adapter 193 is detachably replaced as described above.
The spray unit 182 can be used in common,
It can be used for the ear and nose. (Fifth Embodiment) FIG. 24 and FIG.
FIG. 24 shows a fifth embodiment according to the present invention.
The spray unit or the spray head according to the fifth embodiment is provided.
FIG. 25 is an external view of the distal end portion of the insertion portion of the endoscope, and FIG.
FIG. 25A is a cross-sectional view, and FIG.
FIG. 25B is a cross-sectional view of the distal end portion of the insertion portion of the endoscope.
FIG. 4 is a cross-sectional view of a distal end portion of an insertion section of an endoscope provided with a hand. In the fourth embodiment, the spray head unit is
A nebulizing catheter is provided at the proximal end side of the flexible tube 181.
However, the fifth embodiment uses a flexible tube.
A spray unit or spray head is provided in the insertion section of the endoscope.
Configure. Other configurations are the same as those of the first embodiment.
The explanation is omitted because it is almost the same as
The description will be made with reference to FIG. That is, as shown in FIG.
The spray unit 201 or the spray head 202 in the form
It is provided at the distal end portion 18 of the insertion section of the endoscope 2A.
As shown in FIG. 25 (a), the spray unit 201
The spray head 203 and the chemical tank 204 are detachably installed.
It is composed of The spray head 203 is located on this side.
A connector 205 to which a drive signal is supplied is provided. [0086] The spray unit 201
Attached near the opening 18c of the tool insertion channel 23
It is supposed to be. The spray unit 201 includes:
The fitting portion 18d formed on the tip portion 18 is fitted and fixed.
By screwing the screw 206 as a fixed part, it can be detached
It is fixed. This allows the endoscope
The spray unit 201 is detachable from 2A.
Therefore, replacement of the chemical 53 and replacement of the spray head 203 are easy.
Easy. Then, the spraying unit 201
The spray direction is the opening 1 of the treatment instrument insertion channel 23.
Attach diagonally so as to intersect the longitudinal direction of 8c at an acute angle
Can be At this time, the connector 2 of the spray head 203
Reference numeral 05 denotes a connector 20 provided on the distal end fitting portion 18d.
7 is electrically connected. The connector
207 is a wiring conduit 207 provided in the endoscope 2A.
a is connected to a wiring 207b for inserting and disposing a. still,
Reference numeral 208 indicates that these connectors 205 and 207 are waterproof.
○ ring for On the other hand, as shown in FIG.
The head 202 is attached to the distal end portion 18 of the insertion section of the endoscope 2A.
They may be provided integrally. The spray head 202 is
Flexible tube (tube) 21 inserted into endoscope 2A
1, the liquid medicine 53 is supplied.
In this case, the endoscope 2A is connected to the flexible tube (tube).
B) An injection port (not shown) for injecting the chemical 53 into the 211 is operated.
It is provided in the working unit 12. FIGS. 24 and 25 (a) and (b) described above.
As described in the above, the endoscope 2A includes the spray unit 201 or
Since the spray head 202 is assembled, the first
Connection with control circuit 101 similar to that described in the embodiment
A connecting portion (not shown) is provided at an arbitrary position. An example
For example, although not shown, a connection for connecting to the control circuit 101 is provided.
The connection section connects the control circuit 101 to the video processor 5.
When provided in the endoscope, the universal cord of the endoscope 2A
It may be provided in the thirteen connector portions 18. In this modification, the spray unit 201 is an endoscope.
Since only the point provided integrally with 2A is different,
Description is omitted. The spraying unit 201 thus configured
Or, use an endoscope 2A to which the spray head 202 is attached.
And the chemical liquid 53 is sprayed. Then, the medical solution 53 is inserted into the treatment instrument.
Sprayed from near the opening 18c of the passage channel 23
You. At this time, gas is discharged from the treatment instrument insertion channel 23.
When sent, the chemical 53 sprayed by this gas is processed.
It is sent out to the front of the fixture insertion channel 23. As a result, this modification has the following advantages.
You. In this modification, the spray unit 20 is integrated with the endoscope 2A.
1 or the spray head 202 is assembled.
There is no need for a catheter and the operation is simple. This modification
Indicates the spray direction as an extension of the treatment instrument insertion channel 23.
Since it intersected with the upper part, the channel 2 for treatment instrument insertion
With the tip of the forceps etc. inserted in 3, that is, the forceps etc.
The liquid 53 can be sprayed on the affected area to be treated.
You. For this reason, in this modification, the drug solution 53 is efficiently applied to the affected area.
Reachable. In this modification, the sprayed chemical solution 53 is processed.
By the gas sent from the fixture insertion channel 23
It can be sprayed, and the drug solution 53 reaches the affected part efficiently
It is possible. The present invention is limited only to the above-described embodiment.
It is not limited and does not depart from the gist of the present invention.
Various modifications can be made in the box. [Supplementary Notes] (Appendix 1) A chemical solution is stored, and a jet in the stored chemical solution is stored.
The ultrasonic wave is reflected and focused near the fog port to atomize and spray the chemical solution.
Spraying means for inserting the spraying means into a living body.
Spray unit used from the distal end of a
Provided on the knit body and located outside the body
A medical spray device characterized by the above-mentioned. (Appendix 2) The chemical solution is sprayed by the spraying means.
Condition storage unit that stores spray conditions for atomization and spraying
And, based on the spray condition stored in the condition storage unit,
Control means for controlling the spraying means.
2. The medical spray device according to claim 1, wherein (Appendix 3) The spraying means stores a chemical solution.
A reflector having a liquid storage portion for liquid and a
Consisting of a piezoelectric element portion provided on the bottom surface, the reflector of the
The spray port is formed on the opening side of the liquid storage section,
2. The medical spray device according to claim 1, wherein (Appendix 4) The spraying means is an insulating member
2. The medical device according to claim 1, wherein the medical device is covered with
Spray device. (Appendix 5) The spraying means and the tube
Item 1 characterized in that it is provided detachably with the
A medical spray device as described. (Appendix 6) The tube is a tracheal tube.
The medical spray according to claim 1, wherein the spray is
apparatus. (Additional Item 7) The tube is endoscope
2. The medical spray device according to claim 1, wherein: (Additional Item 8) The tube may be an endoscope.
Additional item characterized in that it is a treatment instrument insertion channel
2. The medical spray device according to 1. (Appendix 9) The tube is a catheter
2. The medical spray device according to claim 1, wherein
Place. (Supplementary Item 10) The spraying means may supply a chemical solution.
Reflector having liquid storage portion for storing liquid and reflector
Circles arranged circumferentially on the sides as desired in the reservoir
The liquid storage part of the reflector, comprising a cylindrical piezoelectric element part
The spray port is formed on the opening side.
Item 2. The medical spray device according to Item 1. (Additional Item 11) The tube contains a chemical solution.
It has a supply pipe for supplying or a discharge pipe for discharging the chemical solution,
The supply pipe or the discharge pipe was filled with a porous member.
3. The medical spray device according to claim 1, wherein (Supplementary item 12)
It is noted that the opening of the air supply conduit for air supply was formed.
2. The medical spray device according to claim 1, wherein (Additional Item 13) Detachable to / from the spray unit
It has an adapter that can be freely attached.
2. The medical spray device according to claim 1, wherein (Additional Item 14)
The piezoelectric element unit based on the spray condition stored in the case storage unit.
Controlling driving means for driving the motor
4. The medical spray device according to claim 3, wherein: (Appendix 15)
Cooling the back side of the piezoelectric element by contacting it with a chemical
4. The medical spray device according to claim 3, wherein: (Additional Item 16)
Characterized in that they are provided on both sides of the vibration generating side of the element.
15. The medical spray device according to claim 3 or 14. (Additional Item 17) The spraying means may be
Additional item 3 characterized in that one spray port is formed and provided.
Or the medical spray device according to 14. (Additional Item 18) The spraying means may be
Additional item 3 characterized in that a plurality of spray ports are formed and provided.
Or the medical spray device according to 14. (Additional Item 19) The spraying means is different.
It is characterized in that a plurality of spray ports having a diameter are formed and one is provided.
15. The medical spray device according to claim 3 or 14. (Additional Item 20) The spraying means is different.
It is characterized by forming a plurality of spray ports with different diameters
15. The medical spray device according to claim 3 or 14. (Additional Item 21)
The ultrasonic vibration generated in the electric element part is applied to the central part in the liquid storage part.
Ultrasound converted near the longitudinal axis and transmitted to the proximal end
Vibration is reflected to the spray port side to converge near the spray port
Item 10 is characterized in that:
Medical spray device. (Additional Item 22) The adapter may be used in the mouth or
Can be inserted into the ear or nose
Item 14. The medical spray device according to Item 13. (Additional Item 23) The plurality of spraying means may include:
Additional features 18 or 20 characterized by being provided radially
A medical spray device as described. (Additional Item 24) The plurality of spraying means may include:
Additional items 18 or 20 characterized by being provided in a lattice shape
A medical spray device as described. (Additional Item 25) The control means may control the
By selectively driving the number of spray means, the spray amount or
Additional feature characterized by controlling spray particle size or reach distance
Item 29. The medical spray device according to Item 24 or 25. (Supplementary Item 26) The plurality of spraying means may include:
Each spray direction is different, and the control means
By selectively driving the spraying means of
Item 24 or 25, characterized in that it is controlled.
Medical spray device. According to the present invention as described above,
Reduce the insertion part diameter of the tube inserted into the body and atomize
A medical device that can reliably reach the target site and spray it
A spray device can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall configuration diagram showing a medical spray system provided with a first embodiment of the present invention. FIG. 2 is an external view illustrating a distal end side of a flexible tube of the spray catheter shown in FIG. FIG. 3 is a side sectional view illustrating a spray head unit and a flexible tube of FIG. 2; FIG. 4 is an enlarged cross-sectional view of the spray head of FIG. 2; FIG. 5 is a conceptual diagram illustrating an ink jet type spray flying method; FIG. 6 is a conceptual diagram for explaining a spraying method using a capillary method. FIG. 7 is a diagram showing the arrangement of a liquid supply pipe and a liquid suction pipe in FIG.
7A is a cross-sectional view, and FIG. 7A is a cross-sectional view illustrating an arrangement of a liquid sending pipe and a liquid suction pipe when four spray units are provided.
FIG. 8B is a cross-sectional view showing the arrangement of the liquid sending pipe and the liquid suction pipe when one spray unit is provided. FIG. 8 is an explanatory diagram when the spray units are radially arranged. (A) is an explanatory diagram in the case where a plurality of spray units are radially provided, and FIG. 8 (b) is an explanatory diagram in the case where one spray unit is provided near the center of the spray head. FIG. 9A is an explanatory diagram in the case where a plurality of spray units are radially provided, FIG. 9B is a diagram illustrating a case where a plurality of spray units are provided in a grid, and FIG. FIG. 10 is an explanatory view showing a case where nozzles having different large and small nozzle diameters are formed and mixed and arranged. FIG. 10 is an explanatory view showing a case where a plurality of nozzles having different nozzle diameters are formed in one spraying part. FIG. 11 is a circuit block diagram showing the configuration of the control device shown in FIG. 1. FIG. 12 and FIG. FIG. 12 is a graph showing a driving signal for driving a piezoelectric element in a pulse manner. FIG. 13 is a graph showing a driving signal for driving a piezoelectric element in a primary resonance or a secondary resonance. FIG. FIG. 14 is an explanatory diagram of a spray head unit showing a first modification of the first embodiment, and FIG.
FIG. 14B is a cross-sectional view of the spray head unit, and FIG. 14B is an external front view seen from the direction B in FIG. 14A. FIG. 15 is a cross-sectional view of a spray catheter showing a second modification of the first embodiment. FIG. 16 is an explanatory view showing a nebulization catheter according to a second embodiment of the present invention. FIG. 16 (a) is a cross-sectional view showing a distal end side of the nebulization catheter, and FIG. ) B-
FIG. 17 shows a modification of the second embodiment of the present invention,
FIG. 18 is a cross-sectional view showing a distal end side of a spraying catheter. FIG. 18 is an explanatory view showing a distal end portion of a spraying head unit according to a third embodiment of the present invention.
(A) is a side cross-sectional view of the tip end portion of the spray head unit, and (b) is an external front view of (a) of FIG. 19. FIG. 19 is a general configuration showing a spray device according to a fourth embodiment of the present invention. FIG. 20 is a schematic explanatory view showing the spraying unit of FIG. 19; FIG. 21 to FIG. 23 are explanatory views showing a modification of the fourth embodiment of the present invention; FIG. FIG. 22 is an explanatory view when an adapter is detachably attached to the spraying unit in FIG. 21. FIG. 22 (a) is a sectional view when an intraoral adapter is attached, and FIG. 22 (b) is an ear. FIG. 22 (c) is a cross-sectional view when the intranasal adapter is mounted. FIG. 22 (c) is an explanatory view showing a method of using the spray unit with the adapter of FIG. 22 mounted. , FIG. 23 (a) is FIG.
FIG. 23 (a) is an explanatory view showing the method of use, and FIG.
FIG. 23 (c) is an explanatory view showing the method of use, and FIG.
FIG. 24 is an explanatory view showing a method of using (c). FIG. 24 is an external view of a distal end portion of an insertion section of an endoscope provided with a spray unit or a spray head according to a fifth embodiment of the present invention. FIG. 25A is a cross-sectional view of a distal end portion of an insertion portion of an endoscope provided with a spray unit, and FIG.
FIG. 25 (b) is a cross-sectional view of the distal end of the insertion portion of the endoscope provided with the spray head. [Description of References] 1... Medical spray system 2... Endoscope device 3... (Medical) spray device 30. ... Spray catheter 31A ... Spray head unit 33 ... Control device 50 ... Spray head 50a ... Spray section 71 ... Liquid storage section 71a ... Reflective wall 72 ... Reflector 73 ... Piezoelectric element section 74 ... Nozzle hole 75 ... Nozzle plate 101 ... Control circuit 109 ... setting storage unit

   ────────────────────────────────────────────────── ─── Continuation of front page    F-term (reference) 4C061 GG11                 4D074 AA03 BB03 DD07 DD21 DD34                       DD55

Claims (1)

Claims: 1. A spraying means for storing a chemical solution, reflecting and focusing ultrasonic waves near the spray port in the stored chemical solution to atomize and spray the chemical solution. A medical spraying device, characterized in that the spraying means is a spraying unit main body that is used from a distal end side of a tube or an external side of a living body, which can be inserted into a living body, and is provided at a site located outside the living body.