JPH02149813A - Foot switch adapter for photographing device of endoscope - Google Patents

Abstract

PURPOSE:To perform release operation with a foot switch by connecting an adapter circuit to an electric connector fitted to the flexible coupling tube part of the endoscope. CONSTITUTION:The endoscope 1, an operation part 2, a flexible insertion part 3, an ocular part 4, and the flexible coupling tube part 5 are provided. The ocular part 4 is fitted with a camera main body 6 detachably, and the camera main body 6 is put in photographing operation such as shutter operation and film winding by an electric motor incorporated in the camera main body 6. In this case, an adapter circuit device 18 to which the foot switch 17 is connected is provided to the electric connector 14 detachably and the foot switch 17 is operated to put the electric motor of the camera main body 6 in operation, thereby performing photography. Consequently, the release operation is performed with the foot switch.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an endoscope photographing device, and particularly to a footsinch adapter as described above.

[Prior Art] Endoscope photographing devices have been automated using electric motors for about 20 years in order to facilitate photographing operations. However, even with such automation, in order to manually press the camera release switch, the bending operation, biopsy aiming operation, and other endoscope operations must be interrupted, resulting in Later on, you will have to redo the bending operation, etc. On the other hand, if you place more emphasis on operating the endoscope,
You will end up missing out on a valuable photo opportunity.

By the way, in an endoscope photographing device, in order to reduce the weight of the camera body as much as possible, electric power for the motor is supplied via the endoscope from a power supply circuit provided in the light source device. Therefore, in recent years, some light source devices have been provided with a foot switch for release and connected to the power supply circuit of the photographing device, so that the release operation during photographing can be operated with the foot.

[Problems to be Solved by the Invention] However, as described above, the light source device does not have a release lens.
Only a small number of endoscope products are equipped with a release switch, and most other products do not have such a function. Therefore, the majority of endoscopes in actual use have a release switch. had to be pressed by hand, and the above-mentioned problems could not be resolved.

This invention eliminates such conventional drawbacks.

To provide a foot switch adapter for an endoscope photographing device, which enables a release operation to be performed with a foot switch even in a system not equipped with a foot switch for release.

[Means for Solving the Problems] In order to achieve the above object, a foot switch adapter for an endoscope photographing device according to the present invention is attached to an endoscope and the shutter operation after the release is turned on is provided. An endoscope photographing device comprising: a camera body that performs film winding and film winding using an electric motor; and an electrical connector attached to a flexible connecting tube portion of the endoscope and electrically connected to the motor. , an adapter circuit device connected to a foot switch is removably attached to the electrical connector, and when the foot switch is operated, the electric motor of the camera body is operated and photography is performed. do.

[Function] By connecting the adapter circuit to the electrical connector attached to the flexible connecting tube section of the endoscope.

The camera body's electric motor can be operated using the switch to take pictures and wind the camera.

[Example] Examples will be described with reference to the drawings.

FIG. 1 shows a first embodiment of the invention. 1 is an endoscope, 2 is an operation part, 3 is a flexible insertion part, 4 is an eyepiece part, 5
is a flexible connecting pipe section. The eyepiece section 4 includes a camera body 6.
is attached removably. The camera body 6 is of a so-called motor drive type, and photographing operations such as shutter operation and film winding are performed by an electric motor (not shown) built into the camera body 6. 8 is a release switch.

Normally, when the release switch 8 is pressed, the photographing operation described above is performed, but in this embodiment, the release switch 8 is kept pressed at all times by, for example, a detachable rubber band 9.

Reference numeral 10 denotes a light source device that supplies illumination light to the illumination light guide 11 of the endoscope l, to which a main connector 12 formed at the end of the flexible connecting tube section 5 of the endoscope is detachably connected. be done. In addition to the light source lamp 13, the light source device M10 includes a power supply (
(not shown) is provided. When the main connector 12 is connected to the light source device 10, its power source is connected to an adapter circuit installation 18, which will be described later, via the main connector 12.

An electrical connector 14 is formed at the end of the branch pipe 5a of the flexible connecting pipe section 5, and the electrical connector 14 is electrically connected to an electric motor built in the camera body 6. The conduction is through a lead wire (not shown) inserted into the endoscope.
It is carried out by

The main connector 12 also has an adapter connector 16.
is detachably connected. This adapter connector 1
6 is attached to the adapter circuit device 18 to which the foot switch air is connected, and is connected to the adapter circuit device 118 via the main adapter 12 and the adapter connector 16.
is detachably connected to the electrical connector 14.

FIG. 2 is a block diagram showing the internal configuration of the adapter circuit device 18, and its operation will be explained with reference to the time chart of FIG. 3.

The foot switch air has a 3 second reset pulse generator 1.
81 is connected to the 3-second off pulse generator 182, and when the foot switch 17 is turned on, a 3-second timer reset pulse and a 3-second timer off pulse are generated.
Once the second timer 183 is turned off, a 3-second timer trigger pulse is generated in the 3-second trigger pulse generator 184 in response to a signal from the 3-second off pulse generator 182, and 3-second timer trigger pulses are generated.
Second timer 183 timer starts. Then, the motor drive power control unit 185 turns on the power of, for example, 4.5V. Then, turning on the power at 4.5 cm has the same effect as turning on the release switch, and the camera body 6 performs photographing and winding operations.

At this time, 4.5■ The time T1 from when the power is turned on until the focal plane signal (FP double signal of the camera body 6 starts) is a time determined by the camera.
For example, it is about 0.1 seconds. Then, the time T2 is set to the exposure time of the camera itself until the FP double signal ends, so if the exposure condition is manual setting, T2 is fixed.
In the case of automatic exposure, T2 is variable.

In the waveform of the motor drive power supply control section 185, the range T3 that starts with the end of the FP double signal is the time for automatic film winding, and is, for example, about 0.4 seconds.

If the next photographing is performed within the above-mentioned range of T2 and T3, double photographing will occur. Therefore, in this embodiment, the motor drive hoisting time equivalent pulse generation section 186 generates a pulse equivalent to the above T3, and inputs it to the double exposure prevention pulse generation section 187. In, T
Double exposure prevention pulse T4, which is synchronized to the range of 2 and T3, is set to 3.
It is output to the second timer 183. As a result, even if the foot switch air is pressed during that time, the 3-second timer 183 is kept on to prevent the 4.5V-Z source from being turned off, thereby preventing double photography from occurring.

After the double shot prevention pulse T4 is released, the above operation is repeated by stepping on the foot switch air. Then, when the last frame of the film has been photographed and the film has been wound onto the take-up side, the motor is driven until the 3-second pulse is turned off, and then stops after 3 seconds have elapsed.

Therefore, there is no problem such as the conventional problem where the motor stops rotating when the film is wound.

In the above embodiment, the setting time of the timer is set to 3 seconds, but the present invention is not limited to this, and may be set to 3 seconds or more or 3 seconds or less.

FIG. 4 shows a second embodiment of the present invention, and even when the endoscope is used in combination with the light source device MIO to which the electrical connector 14 cannot be connected, the foot switch 47
is made available. In this embodiment, the adapter circuit device 48 itself is provided with a power outlet 50 from which power can be obtained, and the electrical connector 14 on the endoscope side is connected to the adapter circuit device 4.
It is directly connected to a connector receiver 40 provided at 8. 42 is a lighting connector. The other parts are the same as the first embodiment described above.

[Effects of the Invention] According to the foot switch adapter for an endoscope photographing device of the present invention, the foot switch adapter 7 can be used even in a system using a light source device that is not equipped with a foot switch for release.
Since you will be able to perform the release operation on the
Using existing equipment, without interfering with endoscope operation,
It has an excellent effect that allows you to take pictures with the best photo opportunity.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the first embodiment of the present invention, FIG. 2 is a block diagram of the adapter circuit device of the embodiment, and FIG. 3 is a time chart showing the operation 1 of the adapter circuit device. FIG. 3 is a perspective view of a second embodiment of the invention. Fig. 1 1... Endoscope, 5... Flexible connecting tube, 6... Camera body, 8... Release switch, 10... Light source device, 14... Electrical connector, 17 .47...Foot switch, 18.48...Adapter circuit stirrup.

Claims (1)

[Scope of Claims] A camera body that is attached to an endoscope and uses an electric motor to operate the shutter after the release is turned on and wind up the film; and a camera body that is attached to a flexible connecting tube of the endoscope. and an endoscope imaging device having an electrical connector that is electrically connected to the motor, wherein an adapter circuit device to which a foot switch is connected is detachably provided to the electrical connector, and the foot switch is operated. A foot switch adapter characterized in that the electric motor of the camera body is operated to perform photography.