JPH04131202U - Light source and control device for TV endoscopes - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a TV that can disconnect the TV endoscope, light source, and control device without damaging the TV endoscope even if the power supply for driving the solid-state image sensor of the TV endoscope is in a energized state. The purpose is to realize a light source and control device for endoscopes. [Structure] When the locking mechanism 3c of the connection part connecting the TV endoscope A and the light source and control device B is released, the power supply 23 detects this and supplies the TV endoscope A from the control device B. A drive power control circuit 24 is provided to turn off the power, and when the TV endoscope A is removed, the power is automatically turned off so that the solid-state image sensor is not damaged.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a light source and control device used in combination with a TV endoscope. In particular, the light source and control device that controls the power supply to the TV endoscope. It is related to.

0002

[Conventional technology]

Recently, it has been used for medical purposes to observe and treat the inside of body cavities, and for inside cavities such as aircraft engines. Industrial endoscopes for observing and repairing Coupled with rapid technological advances, conventional image guide fiber bundles are now being used as observation systems. The so-called fiber endoscope (hereinafter referred to as “fiberscope”) used was replaced by In contrast, the so-called television-type endoscope (hereinafter referred to as "T") has a built-in solid-state image sensor at its tip. It is called "V endoscope". ) has been put into practical use.

0003 In TV endoscopes, external light source equipment is connected from the light guide fiber bundle for illumination. In order to guide the illumination light from the position to the observation unit, and to drive the solid-state image sensor at the tip. power is supplied from an external control device, and simultaneously processes signals from the solid-state image sensor. It is configured so that the signal processing to be displayed on the TV monitor is performed by an external control device. ing.

0004

[Problem that the idea aims to solve]

In this way, the TV endoscope is connected and combined with an external light source and control device. The power to drive the solid-state image sensor at the tip is supplied from the control device. has been done. By the way, the TV endoscope used varies depending on the observation area or purpose. Therefore, each time it is replaced, the connection with the external light source and control device is released.

[0005] The connection has a locking mechanism (mechanical hook) to prevent accidental release. However, the locking mechanism is released by human operation, and the light source and control can be freely accessed. The connection with the control device can be canceled. At this time, there is a Even if power is still supplied, the connection can be canceled, so the solid-state image sensor at the tip The reality is that children may be damaged. The present invention aims to eliminate these drawbacks. With the goal.

[0006]

[Means to solve the problem]

In view of the above-mentioned circumstances, this invention has been developed for the light source and control device for TV endoscopes. , if the locking mechanism is released to release the connection with the TV endoscope, the detection method A stage is provided, and the solid-state image sensor at the tip is supplied from the control device side to drive it. It is equipped with a disconnection means for disconnecting the power supply.

[0007]

[Effect]

As a result, the light source and control device for TV endoscopes with the above configuration will always be used inside the TV. At the same time as the endoscope is being disconnected, the external control device is also It is possible to cut off the power supply for driving the solid-state image sensor.

[0008]

【Example】

An embodiment of the light source and control device for a TV endoscope according to the present invention will be explained with reference to the attached drawings. do. Figure 2 is an overall configuration diagram, where A is a TV endoscope, B is a light source and control device, and C is a Shows a TV monitor. As is well known, the TV endoscope A has a manual operation part 1 and a rigid tip part 2. a, the insertion part 2 consisting of the angle part 2b and the soft part 2c, and the light source and control device B It consists of a universal cord 3 for connection.

[0009] The above universal cord 3 has its tail end connected to the light guide connector 3a and the signal The connector 3b is provided in a branched manner. Such a TV endoscope A has its internal structure. As a configuration, the illumination light guide fiber bundle has its input end connected to the light guide core. In the connector 3a, the output end is arranged in the hard tip part 2a, and the output end is arranged in the hard tip part 2a. An object lens system and a solid-state image sensor such as a CCD are placed at its imaging position. The solid-state image sensor is electrically connected to the signal connector 3b.

0010 Next, the light source and control device B will be described. This device B includes a light source housing 10 and a control housing 20. As shown in Figure 1, the light source housing As is well known, the plug 10 is for a light guide connected to the light guide socket 11. Illumination light is input from the input end of the illumination light guide fiber bundle of connector 3a. A light source 12 of halogen or xenon is built-in.

[0011] The control housing 20 also has a signal socket connected to a signal socket 21, as is well known. A control processing circuit 22 electrically connected to the solid-state imaging device via the connector 3b. It has a built-in power supply that supplies power to drive the solid-state imaging device, and at the same time supplies power to drive the solid-state imaging device. The image signal from the image element is processed and the image is displayed on the TV monitor C. 1 3 indicates a power source for driving the light source 12.

0012 Furthermore, 23 is a power source for driving the control processing circuit 22, and 24 is a lock for the signal connector 3b. It is detected that the mechanism 3c is released, and the control processing circuit 22 outputs the solid-state image sensor. A drive power control circuit that controls the power supplied for driving is shown. Note that 32 is external The plug for connection to the power line is shown. Figure 3 shows the signal connector 3b and its locking device. Structure 3c is shown enlarged.

[0013]

[Effect of the idea]

As mentioned above, the light source and control device for TV endoscopes according to this invention can be used for TV endoscopes. Even if the power supply for driving the solid-state image sensor at the tip of the endoscope is turned on, Connects the TV endoscope to the light source and control device without the risk of damaging the solid-state image sensor at the end. A light source and control device for a TV endoscope that can be released can be realized.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a light source and control device for a TV endoscope according to the present invention.

FIG. 2 is an overall configuration diagram of the present invention.

FIG. 3 is an enlarged view of the signal connector 3b and the lock mechanism 3c.

[Explanation of symbols]

A TV endoscope B Light source and control device C TV monitor 10 Light source housing 13 Power source for driving light source 20 Control housing 21 Signal socket 22 Control processing circuit 24 Drive power supply control circuit

Claims (1)

[Scope of utility model registration request] Claim 1: A light source unit connected to a TV endoscope equipped with at least an illumination light guide fiber bundle and a solid-state image sensor, and introducing illumination light from an input end of the illumination light guide fiber bundle; A light source and control device for a TV endoscope comprising a control unit that drives an image sensor and processes signals from the element, comprising a TV endoscope equipped with the solid-state image sensor, and a light source and control unit for the TV endoscope. The TV endoscope is characterized by having a drive power control circuit that detects when the locking mechanism of the connection part connecting the device is released and turns off the power supplied from the control device to the TV endoscope. Light source and control device for TV endoscopes.