JPH0532052B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endoscope device, and particularly to an endoscope device configured to transmit intra-body cavity image information to a separate monitor device.

For example, an endoscopic device is used in conjunction with an electric scalpel device that generates a high-frequency signal and a separate image monitor device to perform ablation treatment on the affected tissue deep within the body cavity of a patient or other living body, and images of the body cavity are used for scalpel treatment in an endoscope device. A separate monitoring device is provided to monitor.

The monitor device is installed in an endoscope light source device, is attached to the eyepiece of the endoscope, and has a solid-state image pickup device, and a signal extending inside a universal cord into which a light guide or the like is inserted. connected by a cable. When the endoscope insertion section is inserted into the body cavity, the intrabody cavity image light incident through the image guide in the insertion section is converted into an electrical image signal by the solid-state imaging device of the endoscope imaging device. The signal is then transmitted via the signal cable mentioned above and constantly displayed on the CRT screen of an external monitor device. Therefore,
In this case, an operator such as a doctor can discover the affected area in the body cavity and perform scalpel treatment while monitoring the intrabody cavity image displayed on the CRT screen.

However, such a configuration has the following problems. That is, when an electric scalpel device is operated for ablation treatment of the affected tissue in the above-mentioned monitoring state, a high frequency of about 575 kHz and a high frequency component of about 4 to 5 MHz included in this are undesirably generated, and as a result, the universal code is This adversely affects the image signal transmitted via the interpolated signal cable, such as noise generation. As a result, the S/N of the image quality of the monitor image is significantly reduced, making it extremely difficult to monitor the intra-body cavity image. In such a state, it is impossible to expect appropriate scalpel treatment.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a high-quality intra-body cavity image with an endoscope even when a high-frequency signal is generated from a high-frequency signal generator including an electric scalpel device or the like. The object of the present invention is to provide an endoscope device capable of transmitting data to a separate monitor device.

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

FIG. 1 shows an endoscope used, for example, with an electric scalpel device that generates a high-frequency signal and a separate image monitor device to treat affected tissue in a body cavity with a scalpel and monitor images inside the body cavity related to the scalpel treatment. Equipment is shown. In the figure, reference numeral 2 is a signal generation circuit that selectively generates various high frequency currents for cutting, coagulation, mixing, etc. The signal generating circuit 2 selectively generates a desired high frequency current in accordance with the operation of a mode selection switch (not shown). Signal generation circuit 2
is connected to a high frequency amplification circuit 6 via a gate circuit 4. A switch 8 such as a foot switch that commands the generation of high frequency current is connected to the gate circuit, and by operating this switch 8, the gate circuit 4 stops supplying the high frequency current from the signal generation circuit 2 to the high frequency amplifier circuit 6. Control. Furthermore, a transformer 10 is connected in series to the high frequency amplifier circuit 6 for boosting the output voltage of the amplifier circuit 6 to a predetermined potential level. Both output ends of the secondary winding of the transformer 10 are connected to capacitors 12 for blocking low frequency current,
14 to an active output terminal 16 and a patient output terminal 18, respectively. As shown in the figure, an active electrode 22 is connected to the active output terminal 16 via an active line 20, and the active electrode 22 is connected to the main body (operating section) 26 of the endoscope 24 and the bendable insertion section 28.
The forceps are inserted into a body cavity of a living body such as a patient by extending through a forceps tract (not shown) formed by passing through the forceps.
On the other hand, the patient output terminal 18 is connected via a patient line 29 to a return electrode plate 30 attached to a human body such as a patient.

The endoscope eyepiece section 31 includes a solid-state image sensor (e.g.
An endoscope imaging device 34 comprising a CCD) 32
is attached so that it can be removed directly. Intrabody cavity image light incident on the solid-state image sensor 32 via an image guide (not shown) is converted into an electrical image signal 36 by the solid-state image sensor 32 . A wireless transmitter (transmitter) 60 is connected to an endoscope photographing device 34 attached to the endoscope eyepiece 31 . The transmitter 60 is
The electrical image signal from the solid-state image sensor 32 is converted into an electromagnetic wave signal 62 in a predetermined frequency band selected to be a frequency band different from the frequency band of high-frequency components generated when using an electric scalpel, and transmitted from the transmitting antenna 64 into space. radiate to. On the other hand, a wireless receiver (receiver) 66 is disposed in the monitor device 48 provided within the endoscope light source device 44 . The receiver 66 receives the electromagnetic wave signal 62 propagating in space at its receiving antenna 68 and converts it into the original intra-body cavity image signal. The electrical image signal 70 output from the receiver 66 is supplied to the monitor device 48, and the CRT screen (not shown) of the monitor device displays an image of the patient's body cavity related to scalpel treatment taken by the endoscope imaging device 34. is projected.

According to the embodiment constructed in this way, the endoscope 2 works together with the electric scalpel device which is a high frequency signal generation source.
4 is converted into an electromagnetic wave signal 62 in a predetermined frequency band different from the frequency band of harmonic components generated when using a scalpel. signal 62
The data is transmitted to the monitor device 48 via a wireless communication method. Therefore, the operator can monitor images of the body cavity during scalpel treatment with good image quality with a high S/N ratio without being adversely affected by undesirable high frequency components generated when using a scalpel. Thereby, scalpel treatment can be performed with higher efficiency.

It should be noted that the present invention is not limited to any of the embodiments described above, and it goes without saying that various modifications may be made and used by those skilled in the art within the scope of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing the overall configuration of an endoscope apparatus that is an embodiment of the present invention. 2...signal generation circuit, 6...high frequency amplification circuit,
DESCRIPTION OF SYMBOLS 10... Transformer, 22... Active electrode, 24... Endoscope, 30... Return electrode plate, 34... Endoscope imaging device, 32... Solid-state imaging device, 44... Endoscope light source device, 48...monitor device, 60...wireless transmitter (transmitter), 66...wireless receiver (receiver).

Claims (1)

[Claims] 1. In an endoscope device equipped with an endoscope imaging device having a solid-state image sensor and configured to transmit image information to a separate monitor device, a high-frequency signal generating means and a signal generated by the high-frequency signal generating means a high-frequency transmission means for guiding a high-frequency signal to the tip of the endoscope insertion section; and an electric image corresponding to the intra-body cavity image light incident on the solid-state imaging device when the endoscope insertion section is inserted into the body cavity of the living body. a signal transmission means for modulating a signal to have a predetermined frequency band different from a band of high-frequency components included in the high-frequency current and transmitting the modulated image signal as a radio wave signal propagating in space; and transmitting the modulated image signal as a radio wave signal. and means for demodulating the modulated image signal and inputting the modulated image signal to a monitor.