JP2801873B2 - Electric scalpel device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric scalpel device for driving an electric scalpel with a high-frequency current to a living body.

[0002]

2. Description of the Related Art An electrosurgical scalpel is generally intended for surgical invasion by high-frequency current, and technically, (1) electrocoagulation (Coagulation), (2) electrocutting ((Cutting), (3) mixing ( (Coagulation and incision).
When the two technical modes are performed on a living body, the tissue change and the treatment course of the living body are of the same nature, which is characterized in that the amount of bleeding and the absorption of blood from the wound are low.

[0003] Such an electric scalpel has been used in recent years, because it performs resection of a polyp, hemostasis and the like while observing the inside of a body cavity of a living body using an endoscope apparatus.

[0004] This process will be described below. Early endoscopes were primarily used for diagnosis. However, recent advances in technology have made it possible not only to diagnose, but also to treat lesions discovered during diagnosis using an endoscope. In particular, it is essential for endoscopy to remove and collect polyps and determine whether the polyps are cancerous or non-cancerous. An electric scalpel is useful for removing polyps in this endoscopy. In this electric scalpel, a high-frequency current generated by a power supply device for an electric scalpel is caused to flow through a snare passed through a forceps channel with an endoscope, and a polyp can be cut off by the snare.

As described above, it has recently been proposed to incorporate an electronic endoscope device and a power supply device for an electric scalpel into one unit, and it is possible to install the electronic endoscope device even when the endoscopic examination room is small. Was.

On the other hand, the display panel of the electronic endoscope device includes:
Generally, there are many switches and dials. If the switches and dials of the power supply device for an electrosurgical knife are further provided on such a display panel, the switches and dials on the display panel are further complicated. In addition, the switches and dials of the power supply device for the electric scalpel are required to apply different colors to each mode according to each of the techniques of the electric scalpel. For example, the incision and the coagulation are yellow and blue respectively according to JIS. And IEC standards. However, as described above, since a large number of switches and dials are provided on the display panel of the electronic endoscope apparatus, it is not possible to identify these members instantaneously and surely only by color. Not easy.

[0007]

As described above, as described above,
Simply incorporating the conventional electronic endoscope device and the power supply device for the electric scalpel into one unit would result in a complicated arrangement of a large number of switches and dials on the display panel of the electronic endoscope device. It is difficult to instantaneously and reliably identify the mode of the power supply device for the electric scalpel desired by the operator from the above. In particular, the switches and dials may become dirty with the passage of time, and in such a case, the identification difficulty may increase.

[0008] Further, in a situation where an operator performs a surgical operation while observing a television monitor such as an electronic endoscope apparatus, it may not be possible to carefully look at switches and dials on the display panel.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a configuration in which an electronic endoscope device and an electric scalpel power supply device are incorporated in one unit. An object of the present invention is to provide an electric scalpel device capable of reliably preventing erroneous operations of switches and dials of a scalpel power supply device.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a power supply device for driving an electric scalpel with a high-frequency current corresponding to an operation mode, and a color image of an endoscope.
In an electrosurgical device used together with an endoscope device to be displayed on a monitor, a selecting means for selecting the surgical mode, and a surgical mode selected by the selecting means,
Display on the color monitor in a predetermined color for each mode
And a mode display means.

As described above, according to the configuration of the present invention,
When the switches and dials are operated, the mode display means displays a mode corresponding to the mode on the color monitor, so that the switch and dials being operated correspond to the corresponding mode on the color monitor. be able to. The display on this color monitor is a switch,
It may be displayed only while the dials are being operated, or may be constantly displayed as desired.

Therefore, even if the switches and dials on the display panel are complicated by incorporating them into a unit integrated with the electronic endoscope device, the mode of the switches and dials of the power supply unit for the electrosurgical unit on the color monitor is improved. Can be recognized by the operator, and erroneous operation can be prevented.

[0013]

FIG. 1 is a schematic diagram showing the configuration of an endoscope apparatus to which a power supply device 20 for an electric scalpel according to the present invention is applied.

This endoscope apparatus is one unit in which the power supply device 20 for an electric scalpel of the present invention is incorporated in the endoscope apparatus main body 1 and an endoscope connected to the endoscope apparatus main body 1. A snare 5 is guided to the distal end of the endoscope 3 through the forceps channel 4 of the scope 3. The snare 5 is electrically connected to the electric scalpel power supply 20 so that power can be supplied from the electric scalpel power supply 20. In addition, 6 is a counter electrode plate attached to the living body P,
The return electrode plate 6 and the snare 5 can form a closed circuit with the electric scalpel power supply device 20 via the living body P.

The electric scalpel power supply device 20 is shown in FIG.
As shown in the figure, the electric scalpel signal generator 40, the driver 42,
The system controller 1 of the endoscope apparatus main body 1 of FIG.
1 is driven and controlled as a control center of the whole system. The system controller 11 has a foot switch 12
Is added.

In each part of the power supply device 20 for the electric scalpel,
As shown in FIG. 3, the electric scalpel signal generator 40 includes an oscillator 1
3, a first counter 14, a second counter 15, a third counter 16, a first PROM 17 , a second PROM 18, and an AND circuit 19.

The oscillator 13 is a high-frequency oscillator, such as a crystal oscillator or a ceramic oscillator. When the output of the oscillator 13 is applied to the first counter 14, the first
A counter output having a waveform is sent from the counter 14 to the second counter 15 as shown by a symbol A in FIG. The second counter 15 is, for example, a 4-bit counter. One output terminal of the second counter 15 is connected to, for example, lower 4 address bits of the first PROM 17, and the other output terminal transmits a carry bit to the third counter 16. Connected so that you can.

Here, the upper 5 to 8 bits of the first PROM 17 are connected so that a power signal for setting the output power is applied from the system controller 11 of FIG. On the other hand, if ROM data as shown in FIG. 5 is written in advance on the first PROM 17,
A PROM output as indicated by P is obtained. However, since output 0 is omitted, there are 15 types of outputs. In FIG. 5, the lower 4 bits of the address are shown on the horizontal axis, and the upper 4 bits are shown on the vertical axis. It is. For example, when the address 3 is selected by the output power setting signal in the upper address on the vertical axis of FIG. 5, the addresses 00 to 02 of the lower address on the horizontal axis are
The output “1” is output from the first PROM 17. The output is "0" for the remaining addresses 03 to 0F. That is, the waveform of the power output from the first PROM 17 corresponds to "D" in FIG. Therefore, as described above, the width of the rectangular output is equal to the output power setting pulse, in other words,
It is determined by the upper 4 bits of address data of the first PROM 17. The output power setting signal is
Although four bits are used in 16 steps, other numbers of bits may be used.

On the other hand, the third counter 16 is, for example, a 5-bit counter whose output terminal is the second PROM 1
8 low-order 5 address bits.
2 are connected so that an output mode setting signal is added from the system controller 11 of FIG. Further, one output terminal of the second PROM 18 is connected to a reset terminal of the third counter 16. Thus, if ROM data as shown in FIG. 6 is previously written in the second PROM 18 as in FIG. 5, a waveform as shown in FIG. 7 is obtained from the second PROM 18. In FIG. 6, the lower 5 bits of the address are shown in two stages on the horizontal axis, and the upper 3 bits are shown in one stage on the vertical axis.
Here, the reason why the data at addresses 34, 54 and 94 is 2 is to reset the third counter 16 at the second bit of the output.

FIG. 7 is a timing chart showing the operation of the second PROM 18. In the figure, “001” is given to the upper three bits of the address of the second PROM 18 in order to select BLEND 1 having both the incision and hemostasis functions, which are one of the surgical procedures. At this time, BLEND1 in FIG.
Is selected, and the waveform of BLEND1 in FIG. 7 is obtained. At this time, the address 2 in FIG. 6 is 2 for resetting the third counter 16 as described above, and the third counter 16 repeats counting until the count number reaches 20. Note that the number counted by the third counter 16 may be a number other than 20.

From the above, the relationship between the output of the first PROM 17 and the output of the second PROM 18 corresponds to one clock in FIG . 7 and 16 clocks in FIG . Each output of the first PROM 17 and the second PROM 18 is sent to an AND circuit 19, and when an input operation is performed by the foot switch 12 shown in FIG.
Power-on signal surgical ON from the system controller 11 of Figure 2 via the interface 10 is adapted to be sent to the AND circuit 19.

Therefore, when AND is established in the AND circuit 19, a coagulation ( COAG ) waveform output is generated from the AND circuit 19 at the timing shown in FIG. 8, for example, and the driver 42 shown in FIG. The driver 42 allows the output transformer 44 to supply a high-frequency current to the snare 5 with a current waveform corresponding to an electrosurgical technique. FIG. 8 shows the second PROM 1 of FIG.
Part of 20 pulses of 8 output clocks is enlarged and displayed. The high-frequency waveform actually output from the driver 42 is a set of 20 pulses repeated.

However, the first PROM 17 and the second PR
When the upper bit of the OM 18 is not selected, in other words, when the mode or the like is not specified, the output becomes 0 as can be seen from the ROM data of FIGS. 5 and 6, the high-frequency output disappears, and the malfunction of the electric knife occurs. It is safe because it eliminates danger. The first PROM 17 and the second PROM 1
8 is not limited to the contents shown in FIGS. 5 and 6, and can be variously changed.

As described above, in this embodiment, the first PROM
Since the signal generator 7 capable of appropriately generating digital data written in the second PROM 18 and generating various current waveforms corresponding to the electrosurgical technique is incorporated in the electrosurgical power supply device 20, the power supply for the electrosurgical knife is provided. The size of the device 20 was reduced. As a result, as shown in FIG. 1, the power supply device 20 for the electric scalpel could be integrated into the endoscope device main body 1 as a unit.

The signal generator 40 for the electric scalpel, which is an essential part of the present embodiment, has the functional configuration shown in the block diagram of FIG. 3. If this is shown in a preferred circuit configuration example, FIG.
And the connection relationship of FIG. Here, oscillator 1
3, the output frequency is 6.854 MHz , and the first counter 14 is omitted. Other parts are shown in FIG.
Are denoted by the same reference numerals.

Further, the electric knife signal generator 40 includes
The electric knife signal generator 50 or the electric knife signal generator 60 shown in the functional configuration shown in each block diagram of FIG. 11 or FIG.

The electric knife signal generator 50 shown in the block diagram of FIG. 11 is an example using two RAMs 52 and 54, and is controlled by the system controller 11 to each of the RAMs 52 and 54 via the CPU interface 56. RAM data indicating an output power setting signal is set in the RAM 52, and RAM data indicating a mode selection signal is set in the RAM 52.
Set to 54. 12, oscillated from the oscillator 58,
Frequency signal 288MH _z is in the first counter 59 1 /
It is counted down to 2 the 6,144MH _z is. When the output of the first counter 59 is applied to the second counter 15, the 4-bit data of the second counter 15 is stored in the RAM5.
While being sent to 2, carry bit 384KH _z is sent to the second counter 16. Further, a power ON signal from the system controller 11 is applied to the AND circuit 19. In such a relationship, the RAMs 52 and 54 store the first PR of FIG.
It functions in the same manner as the OM 17 and the second PROM 18, and the output of the AND circuit 19 is sent to the driver 42 in FIG.

The electric scalpel signal generator 60 shown in the block diagram of FIG. 12 shows an example in which one PROM 62 is used. A mode selection signal and an output power setting signal from the system controller 11 are stored in the PROM 62 as ROM data. Is set as Further, since the oscillator 58, the first counter 59, the second counter 15, and the third counter 16 are provided in the same relationship as in FIG. 1, the power ON signal from the system controller 11 is applied to the AND circuit 19. In other words, PROM 62 is the first P in FIG.
It functions in the same manner as the combination of the ROM 17 and the second PROM 18.

The above-described signal generator for electric scalpel is only a preferred example.

FIG. 13 is a block diagram showing the functions of an embodiment of the electronic endoscope apparatus 200 to which the present invention is applied.

The electronic endoscope apparatus 200 performs image processing based on a video signal obtained from the endoscope 201 in a state where the guide portion of the endoscope 201 is introduced into the body cavity of the subject P. The basic configuration is such that the system controller 240 is used as a control center to compose an observation image by the unit 202 and display the image on the color monitor 210 in color. However, the system controller 240 also functions as a control center of the electric scalpel power supply device 100 described later.

This basic configuration is provided with a power supply device 10 for an electric scalpel.
0, an electric scalpel comprising a snare 5 and a counter electrode plate 6, an electric scalpel power supply 107 for supplying a high-frequency current to the electric scalpel, an electric scalpel controller 108 for driving and controlling the electric scalpel power supply 107, A mode switch 120 provided on the display panel 109 for performing an operation for operating the scalpel controller 108 and the like are added, and the electric scalpel power supply device 100
And one unit.

Further, the system controller 240, which is a control center of the entire system, has a function as the mode display means 110. This mode display means 110
When the mode selection switch 120 is operated, a signal indicating the operation state is received from the electric scalpel controller 108, and the mode selection switch 120 operates the cut (mixing) switch 120A or the coagulation switch 120B. Is recognized, and based on this recognition, the image processing unit 10
3, the color of the corresponding mode is displayed on the color monitor 210.
A teaching control signal for displaying the information is sent out. Therefore, if the mode of the mode selection switch 120 is incision (mixing), the color display of “yellow” is made on the color monitor 210, and if the mode is solidified, the color display of “blue” is made on the color monitor 210. You.

The image processing unit 2 which is a main part of this embodiment
FIG. 14 is a block diagram showing the combination of the mode 02 and the mode display means 110 in a preferred circuit configuration example.

In the image processing section 202, the video signal obtained by the solid-state image pickup device 204 is converted into a preamplifier 202A.
After amplification, the signal is added to the A / D converter 202B and converted into a digital video signal. This digital video signal is temporarily stored in the first register 202C and then sequentially written to the frame memory 202D. The digital video signal read by the frame memory 202 is applied to a gamma circuit 202.
After the data is temporarily stored in the second register 202F through the gamma processing of E, the analog R signal is output by the D / A converter 202G.
(Red), G (Green), and B (Blue) are converted into three primary color video signals and transmitted to the color monitor 210.

On the other hand, in mode display means 110, T
The HD signal is sent from the V synchronization generator 110A to the vertical address counter 110B, and the 4FSC component is sent to the horizontal address counter 110C. Then, the vertical address from the vertical address counter 110B and the horizontal address from the horizontal address counter 110C are set in the character code memory 110D. This set includes the character code memory 110D are read out to the character generator 110E with control by CH _R signal of the system controller 240. Character generator 110E has character code memory 110D
The set contents read out from the color table 110F
In the color table 110F, the color data (Y, B) designated by the system controller 240 can be added to the D / A converter 202G of the image processing unit 202 associated with the color table 110F.

Therefore, as described above, if the mode of the mode selection switch 120 shown in FIG. 13 is incision (mixing), a color display of "yellow" is displayed on the color monitor 210. A color display of “blue” is made on the top.

FIG. 15 shows an example of a screen mode displayed on the color monitor 210 by controlling the image processing section 202 by the system controller 240 having the function of the mode display means 110.

In the screen mode shown in FIG. 15, the fixed area character portion 220 on the right side of the screen displays a large number of characters, and is not suitable as a position for displaying a surgical method such as an electric scalpel.

Therefore, in the following embodiment, a surgical procedure is displayed in the upper left portion of the screen in the arbitrary character section 230 where no characters are displayed. In the case of the "cutting mode", the character "CUTTING" is displayed in yellow as shown in the figure.
The letters “ND” are displayed in yellow and “Coagulation mode”
In the case of, the characters "COAUGULATION" were displayed in blue.

Therefore, according to the present embodiment,
Since the surgical mode of the electric scalpel designated by the mode switch 120 on the display panel 109 can be recognized on the color monitor 210 by color characters, erroneous operation by the operator can be prevented.

Further, a combination of a color character and a color figure can be performed by, for example, displaying a mode waveform in color with a character for each mode as in a display A, a display B, and a display C in FIG. In addition, it is obvious that, without adding a color, each mode may be displayed with a pictorial symbol representing the mode.

It should be noted that the operative mode is automatically displayed on the color monitor only while the selection means such as switches and dials are being operated, so that other images (for example, those obtained by an endoscope) can be displayed. Image) may be prevented from hindering the display, or the operation mode may be always displayed when "always display" is selected by a switch or the like.

[0044]

As described above, according to the present invention,
When operating selection means such as switches and dials,
Since the corresponding mode can be displayed on the color monitor, for example, by the mode display means, it is possible to prevent the operator from continuing the operation while erroneously recognizing the designated mode.

[Brief description of the drawings]

FIG. 1 is a configuration diagram schematically showing an endoscope apparatus according to the present invention.

FIG. 2 is a block diagram showing a detailed configuration of a power supply device for an electric scalpel.

FIG. 3 is a block diagram showing a detailed configuration of a first example of a signal generator for an electric scalpel.

FIG. 4 is a timing chart showing an operation of a first PROM.

FIG. 5 is a diagram showing an example of data written to a first PROM.

FIG. 6 is a diagram showing an example of data written to a second PROM.

FIG. 7 is a timing chart showing the operation of the second PROM.

FIG. 8 is a timing chart showing the operation of the AND circuit.

FIG. 9 is a circuit diagram showing a part of a preferred circuit configuration example of the electric scalpel signal generation unit.

FIG. 10 is a circuit diagram illustrating another part of a preferred circuit configuration example of the electric knife signal generation unit.

FIG. 11 is a block diagram illustrating a detailed configuration of a second example of the electric knife signal generation unit.

FIG. 12 is a block diagram illustrating a detailed configuration of a third example of the electric knife signal generation unit.

FIG. 13 is a configuration diagram schematically showing an electronic endoscope apparatus according to the present invention.

FIG. 14 is a block diagram showing a detailed configuration of an image processing unit and a mode display unit which are main parts of the present invention.

FIG. 15 is a diagram illustrating an example of a display mode on a color monitor.

FIG. 16 is a diagram showing a modification of the mode display.

[Explanation of symbols]

 Reference Signs List 20 power unit for electric knife 40 electric knife signal generating unit 50 electric knife signal generating unit 60 electric knife signal generating unit 100 power unit for electric knife 110 mode display means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A61B 17/39

Claims (8)

(57) [Claims] 1. An electrosurgical device having a power supply device for driving an electrosurgical unit with a high-frequency current according to a surgical mode and used together with an endoscope device for displaying an endoscope image on a color monitor. Selection means for selecting an expression mode; and mode display means for displaying the operation mode selected by the selection means on the color monitor in a predetermined color for each mode. Electric scalpel device. 2. The electrosurgical apparatus according to claim 1, wherein the mode display means displays the surgical mode selected by the selection means in a predetermined color. 3. The mode display unit according to claim 1, wherein the operation mode selected by the selection unit is displayed in a predetermined color as a waveform diagram symbolizing the operation mode. 3. The electrocautery device according to 2. 4. The electrosurgical apparatus according to claim 1, wherein the selection unit is provided on a panel provided near the color monitor. 5. The plurality of surgical modes include an incision mode,
The electrosurgical device according to any one of claims 1 to 4, wherein the electrosurgical device is in one of a coagulation mode and a mixing mode. 6. The method according to claim 1, wherein the mode display means displays the surgical mode on a monitor only while the selection means is being operated or constantly. An electrosurgical unit according to claim 1. 7. The electrosurgical device according to claim 1, wherein the endoscope device includes a main body and an endoscope scope, and the main body and the power supply device are formed as one unit. 8. The electric knife includes a snare fed from the power supply device and a return electrode attached to a living body, and the snare is electrically connected to the power supply device through a forceps channel of the endoscope. The electrosurgical device according to claim 7, wherein the electrosurgical device is operated.