JPH02131755A - Ultrasonic probe device - Google Patents

Abstract

PURPOSE:To execute ultrasonic diagnosis while the optical image of a purposed part is observed by providing a movable ultrasonic probe, which is protruded from the inserting part tip part of an endoscope, and a means to detecting the moving quantity of the probe, to store obtained fault information and to control a storing means based on detected moving information. CONSTITUTION:For an ultrasonic probe 30, one ultrasonic oscillator 32 is provided in the tip part of an inserting part 31 and the ultrasonic probe is constituted. The ultrasonic oscillator 32 is made contact with a diseased part, etc., and moved unitedly with the ultrasonic probe 30. Then, by coupling these moving information and an echo signal, which is obtained from the ultrasonic oscillator 32, and executing signal processing, the two-dimensional fault video signal of moving direction X depth direction. A detecting means 35 to detect the moving quantity of the ultrasonic probe 30 is provided near a channel port. By moving the ultrasonic probe 30 forward and backward, the moving information of the ultrasonic probe 30 can be obtained from a hole element 36. The output of the hole element 36 is transmitted to an ultrasonic processor.

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to an ultrasonic probe device used in conjunction with an endoscope, and in particular, to an ultrasonic probe device that is used in conjunction with an endoscope, and in particular, an ultrasonic probe device that is capable of obtaining tomographic information of a target region in an observation image viewed by an endoscope. Concerning the ultra-high wave probe device that was developed. [Prior Art] In recent years, by inserting a thin barb into the body cavity, internal organs in the body cavity 2! Endoscopes are widely used that allow observation of medical conditions, etc., and various therapeutic treatments using a medical device inserted into a treatment instrument channel as needed. Also, for example, JP-A+Til 59-699
As shown in 6.3 and Japanese Patent Application Laid-open No. 6C-77731, an ultra-p,wave probe is installed at the tip of the insertion tube.
J. Ultrasound endoscopes that can also observe ultrasound and wave images have also been proposed. [Problems to be Solved by the Invention] However, in conventional ultrasound endoscopy, in order to bring the ultrasound probe into contact with the target area when performing ultrasound diagnosis, it is necessary to While observing the image of the subject (optical LM), perform a tomographic diagnosis using local ultrasound of the lesion I9
Therefore, it is difficult to perform this procedure, so make sure to check the lesion thoroughly. There was a problem that accurate ultrasonic wave diagnosis was not possible. The present invention has been made in view of the above circumstances, and provides an ultrasonic probe device that enables ultrasonic diagnosis of 11 target areas while observing an optical image of the target area. The purpose is to [A Thousand Steps to Solve the Problem] The ultrasonic probe device of the present invention includes a movable ultrasonic probe that protrudes from the distal end of an insertion section of an endoscope, and the ultrasonic probe of the ultrasonic probe. a detection means for detecting a moving object; a storage means for storing tomographic information obtained by the ultra-B wave probe;
and control means for controlling the storage means based on movement information detected by the detection means. [For f+] In the present invention, the ultra-g
The wave probe obtains tomographic information under endoscopic observation, and this tomographic information is stored in a storage means that is controlled based on movement information of the ultra-71 wave probe. [Examples] Examples of the present invention will be described below with reference to the drawings. FIGS. 1 to 9 relate to a first embodiment of the present invention.
The figure is an explanatory diagram showing an endoscope system using a fiber scope, Figure 2 is an explanatory diagram without showing an endoscope system using an electronic scope, Figure 3 is an explanatory diagram showing an ultrasound probe, and Figure 4 is an explanatory diagram showing an endoscope system using an electronic scope. Figure 5 is an explanatory diagram showing the arrangement of the detection means for detecting the movement of the ultrasonic beam [] - IJ suspension; A perspective view showing how the probe is used, FIG. 7 is a block diagram showing the configuration of the ultrasonic Brosselli, FIG. 8 is a waveform diagram showing the horizontal synchronization signal and echo signal, and FIG. 9 is an explanation of the operation of the memory. This is a timing chart for the super right wave wave generator of this embodiment.
Applicable to endoscopes as shown in the figure. Endoscope device shown in Figure 1

It is equipped with a fiberscope 1 as an internal mirror, and an outer mirror 15 that is attached to the eyepiece part 8 of the fiberscope 1. The fiber 1 is elongated and has, for example, a fillable part 2, and this insertion 8l1
A large-diameter operation ili II 3 is installed in series on the rear ζ bank of the 2. A universal cable (J-cord) 4 extends from the operating section 3 to the side h, and a connector 5 connected to a light source device 6 is provided at the end of the universal cord 4. ing. Further, an eyepiece section 8 is provided at the rear end of the operation section 3. The distal end 9 of the insertion section 2 is provided with an illumination window, a vA detection window, and a channel opening. A light distribution lens (not shown) is attached to the inside of the lighting window, and a light guide (not shown) is connected to the rear end of the light distribution lens. This light guide is inserted through the insertion section 2, the operation section 3, and the universal cord 4, and is connected to the connector 5. When the connector 5 is connected to the light source device 6, the illumination light from the light source device 6 is guided through the light guide to the tip 9, and is illuminated onto the subject through the light distribution lens. There is. Furthermore, an objective lens 12 is provided inside the observation window. At the imaging position of this objective lens 12, the distal end surface of an image guide 13 made of a fiber bundle is arranged. The rear end face faces the eyepiece lens 14 in the eyepiece section 8.The object image formed by the objective lens 12 is then directed to the eyepiece section 1!k' section 8 by an image guard '13. The camera is guided and observed from this eyepiece 8. An external eyepiece camera 15 kl is connected to the eyepiece 8, and the eyepiece 8 captures the light from the sun. Image forming lens ``l6'', this E11 image forming lens 16 {
Ml f”/located in l.: CC1) Solid fli of the tongue
It is equipped with an image system of 17. Also, in addition to this, the camera is equipped with a TV camera with 15 1.
Runi r-tsu b (10, C C tJ) 18 to 1
17t, this ('; (There is. Output No. 111 of this solid M+2 image Mizuko 17 is the C
The video is processed and converted into a standard video image (, human-powered to the TV screen 19, and the internal image 41 is displayed on the TV screen 19).
, there is one in the operating section 3.
is provided in the insertion section 2, and in the insertion section 2, there is a channel connecting the channel 121 and the channel 1/channel opening section numbered in the front end section 9. 22 is not formed. Then, in this tunnel 22, there is a super nanowave D one part 3.
0 can not be inserted. The ultrasonic probe 30 can move forward and backward within the channel 22, and its tip protrudes from the tip 9 of the insertion section 2 so that it can come into contact with the subject 24. Further, the ultrasound probe 30 is connected to an ultrasound processor 40, and the ultrasound processor 40 converts the ultrasound multiplexed tomographic information obtained from the ultrasound probes 30 into an ultrasound f1 wave image. It is set to be converted. This river wave video is from the CC
It is transmitted to U 1 8, combined with the standard video signal, and displayed on the seventh monitor 19 together with the endoscopic image, or, more likely, on a dedicated monitor 26. As shown in FIG. 2, the family gift 1l equipment is equipped with an electronic system 111 as an endoscope. Like the fiber scope 1, the electronic scope 11 has an insertion section 2. It has an operating section 3, a universal cord 4, and a connector 5. Further, the distal end portion 9 of the insertion portion 2 is provided with an illumination window, an observation window, and a portion between channels. A light distribution lens (not shown) is attached to the inside of the illumination window, and a light guide (not shown) is connected to the rear end of the light distribution lens. A seed is passed through the cord 4 and connected to the connector 5.An objective lens 12 is provided inside the Il2 observation window.The imaging position of this objective lens 12 is located at the
A solid-state image element 17 such as an OD is provided.The signal YJ line 27 connected to this solid-state image element 17 is connected to the inside of the insertion part 2.1! production part 3 and universal cord 4, for example. J.I.
1i, and is further extended from this universal door 4 to be connected to the CCU 18. Then, the prison image retrieval unit 17 is driven by this CCU 18 and is configured to perform nine-electron conversion on the subject image formed by the objective lens 12. The output signal of the output signal 17 is subjected to video signal processing by the CCU 18, converted into a standard video signal, and inputted to the television monitor 19, on which the endoscopic image is displayed. Also, like the fiberscope 1, a channel 22 is formed in the insertion section 2, and this 1ν channel 22
An ultra-a wave probe 30 is inserted therein. This ultra-A wave wave L1-wave 30 is connected to the channel 2.
2, and the distal end protrudes from the distal end 9 of the insertion section 2 so that it can come into contact with the subject 24. Further, the ultrasonic wave probe 30 is connected to an ultrasonic wave probe 40, and the ultrasonic wave probe 30 is connected to an ultrasonic wave probe 40.
4 0 (M!1 wave tomographic information obtained from the ultrasonic wave U-bu 30 is converted into an ultrasonic wave image. This ultrasonic image number is transmitted to the CCU 18. The ultra-high wave probe 30 is mixed with the standard video signal and displayed on the monitor 19 together with the private mirror image, or on the dedicated monitor 26. As shown, insert the insertion part 31 that can be inserted into the channel 22, and
At the tip of this insertion part 31, there is one ultra-a wave oscillating #J element 3.
2 are provided to constitute an ultra-a wave probe. Transmission lines 33a and 33b are connected to the ultrasonic wave sensor 32,
The base side of this transmission 112 3 3 a, 33b is connected to 1! of the insertion portion 31! ! Connector part 3 installed in the pane part
Connected to 4. Then, the ultrasonic transducer 32 transmits the transmission! ! I133a, 33b and connector part 34
The ultrasonic wave sensor 40 is connected to the ultrasonic wave generator 1 through the ultrasonic sensor 40. Ultrahigh wave wave according to this embodiment 1. ]-The feature of the probe 30 is that the ultra-RT wave transducer 32 is moved with the ultra-single wave probe 30, brought into contact with a lesion, etc.
This movement information and obtained from the ultrasonic transducer 32 -
[] There is a method C that attempts to generate a two-dimensional tomographic image signal in the movement direction x depth direction by combining and processing one signal (topographic information). In addition, in this embodiment, as shown in FIG.
A first stage 35 of detection is provided for detecting the distance. For example, as shown in FIG. The sensor section 37 has a cylindrical shape through which the ultrasonic probe 30 can be inserted, and the inner peripheral surface that comes into contact with or near the ultrasonic probe 30 is magnetically coated. First, this magnetic coating part 38 is magnetized with N and S poles at a pitch of 100 μm, for example, so that they are mutually intersecting.
The Hall element 36 provided at the super-multiplexing probe 30
The distal end portion of the tip protrudes from the distal end portion 9 of the tip and is located within the senna portion 37. Therefore, by moving the ultrasound probe 30 forward and backward,
The movement information of the Super Eight Wave Bu [1-Bu 30] can be obtained from the Hall Kiko 36. The output of the Hall element 36 is transmitted to the connector section 34 via a signal line 39, and is further transmitted to the ultrasonic block via this connector section 34.

[It is now transmitted to Kosissa 40.] Next, with reference to FIG. 6, an explanation will be given of the 1416 principle of the ultra-6 wave tomographic image in this embodiment. The ultrasonic probe 304; L is introduced into the body through the channel 22 of the tube, and is protruded from the tip 9, and the ultrasonic transducer 32 is inserted into the body's target such as the stomach wall. The area is touched. Then, internal tomographic information is obtained by the ultrasonic waves emitted from the Moeki ultrasonic transducer 32.・In FIG. 6, numeral 57 is a lesion, and since there is a change in high impedance at the interface 58 between the lesion 57 and the normal region, this interface 58T:, the ultra-rich wave vibration The ultrasonic wave transmitted from the transducer 32 is reflected, and this echo is received by the ultrasonic transducer 32. Naturally, the ultrasonic transducer 32 is not forcibly vibrated at this reception time of 5 o'clock. The information obtained in this manner is only point information (one-dimensional information only in the depth direction) corresponding to the area of the 41 ultra-wave vibrator 32, indicated by the reference numeral 59 at d5 in FIG. Therefore, by moving the ultrasonic vibrator 32 by 8p,
By repeating the operation of moving the point information of one frame by Δp again to obtain point information, 62-dimensional information of one piece is obtained for a certain arrangement 1. In this way, the movement state of the ultrasound probe 30 can be observed within the viewing angle θ using the objective lens 12, and the ultrasound diagnosis of the target region can be performed while observing the optical image of the target region. Next, with reference to FIG. 7, the configuration of the supermultiplexer Brosselli 40 will be explained. The ultrasonic generator 40 includes a transducer drive signal generator 41
, and each of the low-voltage outputs 41 is connected to the C cables 33a, 33 via an impedance matching resistor 42.
connected to b. The output of the vibrator drive signal generator 41 is connected to the resistor i42, the cable 33a. 33b
The vibrations are transmitted to the ultrasonic transducer 32 via
2 to vibration drive 1. An echo emitted from this vibrator 32 and reflected within the living body is received by the vibration -f32 and converted into an any signal. This echo signal is voltage-amplified by the amplifier 43 in the ultrasonic processor 40 via the cables 33a and 33b, and the band-pass filter (
(BPF) 44 is becoming increasingly popular. In this example, the vibration frequency is 5 M + - 1Z, and the BPF/
The center frequency of l4 is also 5 MHz. Said 1
3 I) The output of F 4 /I is input to the detection 2A45, and the ■-1-B 0-wave of the French 8 is detected, and the A-D
It is input to O exchange'a46, and in this embodiment, it is converted to Qbit's output number 15. 811 above
] The output of the converter 46 passes through the switches -81 to Sn, and is input to the line meters M1 to Mn of the measuring section 47, and is stored. It should be noted that each line number Ml-Mn corresponds to an area of 80 to Δn, respectively. In addition, the vibrator driving partner number generator 1 41 is horizontally 161
Term {5F3 ni Tsu (1 Heligared J, Unatsu (
There is. Note that the above-mentioned horizontal plane 11 {;; number is separated from the image plane D used in this embodiment. In synchronization with August, the ultra-B wave oscillator 32 is driven from the oscillator driver oscillator 41 as shown in Figure 8(b). and responded to this -11211jinno.5
0b $4! ) can be done. In addition, the line measurements M1 to Mn (Ao -An)
The drive. A memory drive circuit 51 for controlling is provided, and the front horizontal synchronization signal is inputted to this memory drive circuit 51. Further, a ring counter 52 that controls the switches 81 to 3n is provided, and this ring counter 52 has the following functions:
A movement signal 55, which is a pulse generated in response to the movement of the ultra-A-wave wave block 30, is input as a clock. In this embodiment, the movable unit No. 8 55 is the detection means 35
Obtained from the 0-hole element 36. The ring counter 5
2 generates each bit output SD1 to S[)n as the ultra&wave probe 30 moves. This bit output SD+~S
Dn indicates that the switches 81 to 3n are ON and 1, respectively.
Ru. The switches 81-3n are connected to the outputs SD1-S
Depending on Dn, it is sequentially switched from S 1 to S 2 →...→3n. First, when the ultra-high wave probe 30 starts moving, the switch S1 is turned on as shown in FIG. 9(C).
While this switch S1 is ON, echo signals such as 1 shown in FIG. 9(a) are sequentially stored in lines 80 to 80 of the line memory M1 as shown in FIG. 9(b).Ao The switching between .
Number of stages (Ao ~ Δn) (divided into Δ0 ~ A
It will be stored in n. As shown in Figure 9(b) 1,
Memorization ends at Ao → △r) and C completion 1. At the same time, the switch 81 is turned off as shown in FIG. 9(C). Furthermore, when the super & wave self-bubble 30 moves, the switch J-82 is turned ON, and the memory is executed in the second stage line meter M2 in the same way as the line meter M1. be done. Thereafter, as the movement of the ultrasonic block [l-130 continues, the storage operation continues up to the switch 3n and the line memory M'). In this embodiment, the number of stages of the line memory is, for example, 256, and the maximum movement of the ultrasonic probe 30 is 10 mm. Zunawara, when moved up to 10mm, 25
Six stages of line memory become saturated. Therefore, the resolution is 1
0mm/256=0.04mm'c. If you want to move the supermultiplexing probe 30 again and read the tomographic information at another position, turn on the recording enable switch 53 connected to the ring counter 52, and turn on the ring counter 52 and memory drive circuit 51. After clearing, the switch 53 is turned OFF and the 1m storage operation is started again. In addition, each memory (Ao to △n) M1 to Mn is spaced by C in the depth direction, and each has a length of 28 to 255 s te.
It has the ability to store depth information (ablog information) of p. Note that the memory drive circuit 51 includes memories Ao to A+),
The address counter group for M1 to lyln and the clock signal generator for this address counter group are shown on the right. In this embodiment, this clock signal generating section is synchronized with the horizontal synchronizing signal by a PLL circuit, and the frequency of the clock signal is set to 14.32 MHZ. Also, while it is being written into the memory, the super eight wave bu [] one bu 30 is &! When the ring counter 52 is saturated and the SS signal is generated, this resets the address counter in the memory drive circuit 51. After the line markings M1 to Mn, a DA converter 48 is arranged so that the output of the A-A converter 48 is input to the seventh monitor 26 as tomographic information. Now, when the tomographic information stored in the memory section 47 consisting of the line memories M1 to Mn is displayed on the monitor 2G for observation, first, the switches 81 to Sn are forced to
2r, and the menu section cannot be updated. Therefore, the outputs of the line memories M1 to Mn include the stored local layer information.
Appears repeatedly in synchronization with the horizontal domei signal. The memory section 47 and main drive circuit 57 of the tree embodiment have a so-called X-Y address system, and the address counter configured in the drive circuit 57 is reset by a horizontal synchronization signal! Kome, Meshichiri Ao. The output timing of M1 matches the timing of the horizontal synchronous chair. Then, the memory M1 to M "1" is output from the D-A converter 4.
8, is DA converted, and analog two-dimensional tomographic information is output. As described above, according to the present embodiment, while observing an optical image of a lesion, etc., on the monitor 19 using the fiber bus 1 and the external TV camera 15 or the electronic scope 11, and By operating only the ultrasound probe 30 with this observation image fixed, it is possible to obtain tomographic information of the lesion, etc. in the observation image, and to perform ultrasound diagnosis of the lesion reliably and accurately. This makes it possible and extremely useful medically. FIG. 10 is an explanatory diagram showing the configuration of a detection means for detecting the amount of movement of the ultrasonic probe in the second embodiment of the present invention. The detection stage 35 of this embodiment is installed near the channel 21 of the fiber scope 1 or the electronic scope 11, for example, similarly to the first embodiment. This detection means 35 has a cylindrical sensor section 61 into which the ultra-8 wave probe 30 can be inserted, and inside this sensor section 61 is a rubber-like mouth roller 62 which is pressed into contact with the ultra-8 wave probe 30. A rotation engine 63 is provided which is mechanically connected to the rubber roller 562 and detects the rotation of the rubber roller 62. The output of the rotary encoder 63 is transmitted to the ultrasonic processor 140 as a movement signal 55 via a second connector section 64 provided in the sensor section 35. (Other configurations, functions and effects are the same as those of the first embodiment. Figures 11 and 12 relate to the third embodiment of the present invention, and Figure 11 illustrates an ultra-P1 wave probe. Fig. 12 is a diagram showing a circuit for generating movement information. A light emitting element 71 such as an LED is provided at the distal end of the insertion section 31. Electricity is supplied to the light emitting element 71 through the transmission line 33 to the ultrasonic transducer 32.
A is connected to a common line (earth potential) through a transmission line 33C connected to the connector section 34. As shown in FIG. 12, inside the ultrasonic Brossener 40,
An oscillating 2S100 connected to the light emitting element 71 via
is provided, and the light emitting element 71 is driven to blink by the output of the oscillator 100. Incidentally, the blinking period is fO, and in this example, 1 0 fl
By observing the ultra-A wave probe 70 with the fiberscope 1 or the camera 11, the blinking of the light emitting element 71 is imaged, and the external television camera 15
The video signal obtained from the solid state I of the electronic scope 11
The video signal obtained from the II image element 17 includes 8 blinking information of the light emitting light 71. This video is input to the BPF 102 whose center frequency is t'o as shown in FIG. 12, and only the blinking information is separated and extracted. The output of this BPF 102 is input to a detector 103, subjected to envelope detection, and output as movement information 104. Note that this movement information 104 is based on the movement signal 55 as shown in FIG.
It cannot be used as From this movement information 104, the seventh
As shown in the figure, the circuit for generating the movement signal 55 is similar to the fourth embodiment and 1-1. Glowing 71st October J. 1 decrease J: 1
9 (・Easy to judge (-saru. Figure 13 < f I 1 8 Figure 1, LA Regarding the fourth embodiment of the invention, Figure 13 No. > 1? "1 wave II-1 is shown. L
1 Explanatory diagram, ml/I Figure 1.1 lζ forming movement information
Figure 15G. t
, B IJI emotion + tJ #”J B !Jl t:
Figure 16 is a diagram showing the same circuit that forms +3 wo/1. Oh Gj
FJ 7th diagram showing the configuration of the pulse generator, No. 18
Figure t. 1. There is a timing diagram for clarifying the operation f1 of the valve 1 in FIG. 17. JjL's super j'% wave in the tree example 11-8 0 t
゛l;I, the tip of the insertion section 31 [this, (/! finger J!;!
This color designation e. A circuit for generating movement information when this color index 81 is provided is shown in FIG. 14, for example. In this embodiment, green is used as the color index 81. The video signal Y- from the attached television camera 15 or the solid-state image sensor 17 of the electronic scope 11 is input to the color signal processing circuit 105, and is converted into color difference signals R-Y and 13-Y.
are detected separately. In both color difference signals, green components corresponding to green are generated. In particular, since there are few green colors in the body, it is easy to separate this green component. Both color difference signals are input to the processing circuit 111 and processed as normal video signals. At the same time, the signal is input to a specific color detection circuit 108 which separates the specific color signal. This specific color detection circuit 108 is composed of a circuit that detects the levels of both color difference signals. The output of this specific color detection circuit 108 is manually inputted to a detector 109 and detected.
It becomes 0. The transfer information 104 in the third embodiment and the transfer information 110 in this embodiment are based on the transfer signal 5 shown in FIG.
It cannot be used as 5. A moving Buddha; 3 5
5 is a predetermined crack IS generated as the ultrasound probe 30 moves in the vertical direction;
From the movement information 104.110, the movement signal 55 is
The resulting circuit is shown in FIG. 15, for example. That is, as shown in FIG. 16(a), the vertical diode included in the video signal obtained from the solid-state Vυ image element 17 is separated. ! 1 signal 112 is a lamp generator 113
, and this ramp generator 113 is triggered from 1 to 1. FIG. 16(b) generated from this lamp generator 113
This ramp signal becomes one input to sampling generator 114. This sampling generator'+14+
7) Movement information 104 or 110 as shown in FIG. 16(C) is input to the +1!1 input. The Jikisha number generator 114 is shown in FIG. 16(b). As per (c), movement information 104.110 starts up.
, rimbling and holding the ramp signal. Furthermore, the first
In FIG. 6(b), the voltage indicated by a broken line 120 is the voltage obtained by number holding by the number generator 114. The output of the rimbling generator 11/I, the line t], and the city pressure 120 are the output of the pulse generator 11
5 is input. This pulse generator 115 has a voltage of 12
When a change of 0 is detected and the change of A exceeds a predetermined level, one pulse is generated and overturned. still,
Detection of change 4 consists of a circuit that is reset every pulse generation. FIG. 17 shows a specific example of the front pulse generator 115. The voltage 120 from the sampling generator 114 is manually input to a differentiator circuit composed of a capacitor 122 and a low resistor 123, and a change detection circuit. Ru. The output of this differentiating circuit becomes one input of the comparator 124. This comparator 124 detects the change level of the output of the Moeki differentiator circuit, and when the threshold level set by the reference voltage 125 is exceeded, one pulse is generated at the output of the subsequent pulse generator 12G, which is This is the clock signal used for the shift start signal 55 in FIG. Also, the output pulse of the pulse generator 126 is delayed by the R delay circuit 128 and reset; - the pulse generator 129
Trigger. The output of the reset pulse generator 129 turns on the switch 130, which short-circuits the resistor 123 when turned on, and initializes it. FIG. 18(a) shows the voltage input from the differential circuit to the comparator 124 while the supersonic wave 1 lobe 70 or 80 is moving.
l1{ exceeds the threshold potential! At this time, a clock signal is output from the pulse generator 126 as shown in FIG. 18(b). Also, by the output pulse of the reset pulse generator 129 as shown in FIG. 18(C),
As shown in FIG. 18(a), the differential value of the voltage 120 is reset to the initial value. According to the present embodiment, the moving state of the ultrasonic beam 1170 can be easily determined on the television screen 19 using the color indicator 81. Further, according to the third and fourth embodiments, the ultra-raku wave block [l-bu 7
The moving state of 0 or 80 can be detected from the video signal obtained from the external television camera 15 or the video signal obtained from the solid-state image element 17 of the electronic scope 11, and as in the first or second embodiment. This eliminates the need for a device to detect the movement of the ultra-n wave probe. Third. Other configurations, operations, and effects of the fourth embodiment are the same as those of the first embodiment. 19 and 20 relate to a fifth embodiment of the present invention, in which FIG. 19 is a circuit diagram of a video processing circuit, and FIG. 20 is an explanatory diagram showing a monitor image. In this embodiment, as shown in FIG. 19, an image processing circuit 140 is provided that enables simultaneous IA observation of endoscopic images and tomographic information. This video! The 51 instant circuit 140 has a mixer 141 and mixes the video signal C+:1 received by the CCU 18 and the DA converter 48 of the ultrasonic processor 40.
The two-dimensional tomographic information which is the output of is input to the a-combiner 141 and mixed therein. In this embodiment, the image processing circuit 140 is provided, for example, in the CCU 18 for the ``city screen'' 11 having a solid-state ML image element 17 at its tip. The output of the super wave block 1/IO shown in FIG. 2 is the 11th layer information. In the example shown in FIG. 2, the ultrasonic blower 40, ccuis, ) 1l. Although the writing device 6 is configured separately, these may be temporarily disposed of depending on the user's needs. In addition, if necessary, ultrasonic processor Fj40. CCtJ18. Two of the light source devices 6,
They may be integrated by storing them in a single unit. The output of the mixer 141 is inputted to the television monitor 19, and the optical observation image 143 obtained by the solid 'M&Kiko 17 and the observation image al 44 of the layer by the ultra-11 waves are simultaneously displayed on the television monitor 19. Is displayed. By the way, in this embodiment, it is difficult to determine which part of the observation image 143 by the solid-state image element 17 corresponds to the ultrasonic tomographic image 14/I obtained by scanning the ultrasonic probe in a linear manner. As in the third or fourth embodiment, in order to recognize
The data is stored in a not-illustrated memory provided in 40, and is recorded in an optically observed image @143 by the solid-state nine-image probe 17. The observed image after mixing may be changed to a still image by freeze processing. In this case, as shown in Figure 19,
By converting the first continuation image 145 after freezing into a reduced size image and displaying it on the TV 72 screen 19, accidents caused by white [ ] operations can be prevented. In addition, when the optical observation image 143 and the ultra-wave observation image 144 are displayed on the same monitor 19, it is necessary to It is also conceivable to transmit ultrasound observation images. 20th
FIG.
This is an example of combining 54 and ・F. In this case, signal distortions such as brightness and chroma of the parts to be overlapped in the optically observed image @ (original image a) 151 as shown in Figure 20 (a) were suppressed.
Alternatively, the colors of the supercombined images may be changed to five colors, such as green, which do not occur much in the internal mirror image, and may be superimposed. Note that in FIG. 20(a), reference numeral 152 indicates a suspected lesion site. Furthermore, as shown in FIG. 19, displaying the ultrasound observation image 144 at a predetermined position on the monitor 19 is performed using the memory of the ultrasound monitor 19! ! Select the timing of the horizontal synchronization signal input to the h circuit 5113;! It is realized by 'J. Note that the main drive circuit 51 is
Memories Ao to Δn. An address counter 1 synchronizer nY for M1 to Mn and a clock signal generator for this address counter group are provided. This clock signal generator 1. L, this example is PL
It is synchronized with the horizontal dome signal 'iJ' by the L circuit, and the frequency of the main and clock signals is set to 14.332 MIB. Also, while reading into memory, the ultrasonic probe is
When the ring counter 52 reaches saturation after i, the seventh
As shown in FIG. 1, a signal S S {,; is generated, which rehits the address counter in the memory drive circuit 51. As described above, according to this embodiment, the optical view on the same screen is the same as the one on the monitor. ! Since the four images and the ultra-A wave observation image can be displayed, it becomes easy to associate the two images. Other configurations. The operation and effect are the same as in the first embodiment. It should be noted that the present invention is not limited to the above-mentioned embodiments, and for example, the ultrasonic probe is not limited to one that can be inserted into the chitI channel of an endoscope, but can be inserted into the tip of the insertion section of the endoscope. , it may be provided so that it can be freely protruded and retracted from this tip and can be moved in a protruding state. [Effects of the Invention] As explained above, according to the present invention, tomographic information under endoscopic observation can be obtained by the ultrasonic probe protruding from the distal end of the insertion section of the endoscope. This has the effect that ultrasound diagnosis of a target region can be performed while observing an optical image of the target region.

[Brief explanation of the drawing]

FIGS. 1 to 9 relate to a first embodiment of the present invention.
Figure 1 shows an explanatory diagram of an endoscope system using a fiber scope, Figure 2 shows an explanatory diagram of an endoscope system using an electronic scope, Figure 3 shows an ultrasound probe, 1 explanatory diagram, and Figure 4 The figure is an explanatory diagram showing the arrangement of the detection means for detecting the movement B of the ultrasonic probe, and Figure 5 shows the configuration of the sensor in Figure 4.
tl explanatory diagram, Fig. 6 is a perspective view showing the state of use of the ultrasound probe, Fig. 7 is a block diagram showing the configuration of the ultra-B wave processor, and Fig. 8 is a waveform diagram showing the horizontal synchronization signal and echo signal. , FIG. 9 is a timing chart for explaining the operation of the memory, FIG. 10 is an explanatory diagram showing the configuration of the detection means for detecting the movement a of the ultrasound probe in the second embodiment of the present invention, and FIG. 12 and 12 relate to the third embodiment of the present invention, FIG. 11 is an explanatory diagram showing an ultrasonic probe, and FIG. 12 is a one block diagram showing a circuit for generating movement information.
13 to 18 relate to the fourth embodiment of the present invention,
FIG. 13 is an explanatory diagram showing an ultrasonic probe, and FIG. 14 is a block diagram showing a circuit for generating shift J information.
Fig. 15 is a block diagram showing a circuit that generates a movement signal from movement information, Fig. 16 is a timing chart for explaining the operation of the circuit in Fig. 15, and Fig. 17 is a pulse generator in Fig. 15. FIG. 18 is a timing chart for explaining the operation of the pulse generator of FIG. 17, and FIGS.
Regarding the embodiment, FIG. 19 is a circuit diagram showing a video processing circuit,
FIG. 20 is an explanatory diagram showing a negative image. 1...Fiber bus 11...Electronic scope 15...External television camera 17...Solid-state dancing image element 22...Ti channel 30...Super wave probe 35...Detection Means 40...Ultrasonic valve O series 47...Mail portion 51...Memory drive circuit Fig. 3 Fig. 5 Fig. 1 Fig. 6 Fig. 10 Fig. 8 Fig. 9 Fig. 11 Fig. 12 Figure 15 Figure 16 Figure 13 Figure 14 Figure 17 Old figure

Claims (1)

[Claims] A movable ultrasonic probe protruded from the distal end of an insertion section of an endoscope, a detection means for detecting the amount of movement of the ultrasonic probe, and a tomographic information obtained by the ultrasonic probe. An ultrasonic probe device comprising: a storage means for storing; and a control means for controlling the storage means based on movement information detected by the detection means.