JPH0111212Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an ultrasound endoscope.

Abnormalities such as polyps and tumors on the inner wall of the stomach can be found and observed using a conventional endoscope, but tumors formed inside or on the outer wall of the stomach can be detected using a conventional endoscope. I can't find it.

Therefore, it has recently been devised to detect them using ultrasound, and an ultrasound endoscope has been used.

This is the rigid head part 1 of the endoscope as shown in Figure 1.
An ultrasonic wave emitting surface 2 that emits ultrasonic waves is formed on the side surface of the screen.

By inserting such an endoscope into a body cavity and emitting ultrasonic waves by bringing the ultrasound transmitting surface 2 into close contact with the inner wall surface of the body cavity, the reflected sound waves can be detected to detect tumors inside or outside the body cavity wall. are finding.

However, in such an ultrasound endoscope, it is necessary to place the ultrasound transmitting surface 2 in close contact with the desired inner wall surface of the body cavity to transmit ultrasound, but it is necessary to determine which direction the ultrasound transmitting surface 2 is facing. Since it is very difficult to confirm this within a body cavity, it has the disadvantage that it is difficult to locate a desired location and bring the ultrasound transmitting surface into close contact with that surface.

This invention aims to solve this drawback,
A light-emitting surface that emits detection light is formed at a desired location on the rigid part of the head, and by visually observing the detection light from the light-emitting surface as light transmitted from outside the body to the skin, it is possible to detect ultraviolet light in a predetermined direction from the light-emitting surface. A feature is that the direction of transmission of the sound wave transmission surface can be confirmed.

Next, one embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a side view of essential parts showing an embodiment of the present invention, and 3 is a flexible tube continuous to the handle, and a rigid head portion 4 is connected to the tip of the flexible tube 3. ing.

Reference numeral 5 designates an ultrasonic wave transmitting surface formed on the side surface of the rigid head portion 4, and reference numeral 6 designates a detection light emitting surface provided at a predetermined angle from the ultrasonic wave transmitting surface 5, at a position of 180° in the present invention. The light emitted from this light-emitting surface 6 may be a normal endoscope light source, but a high-intensity pulsed light source is optimal, and it is best to emit light from two places, so that the light can be seen internally from the angle of the two lights. This allows you to know what angle the head of the scope is at.

The reason why the light emitting surface 6 was positioned on the opposite side of the ultrasound transmitting surface 5 in the above embodiment is that, for example, in the stomach, the region on the back side of the stomach is observed more frequently than the region on the ventral side. This is because by positioning the light emitting surface 6 on the opposite side of the ultrasound transmitting surface 5, the detection light can be detected on the abdominal side.

According to the above configuration, by inserting the endoscope into the body cavity and emitting two detection lights from the light emitting surface 6, the light can be visually observed from outside the body through the skin. By knowing the position and angle of the detection light of the book, it can be determined that the ultrasound transmission direction is at a certain angle from the detection light, and the direction of the ultrasound transmission surface 5 can be confirmed from outside the body.

According to the present invention having the above configuration and operation, by emitting detection light from an endoscope inserted into a body cavity and observing the position of the detection light through the skin,
Ultrasonic waves are emitted from the detected light in a predetermined direction, which makes it extremely easy to detect the direction in which the ultrasonic waves are emitted, greatly reducing inspection time, improving inspection workability, and increasing the This has the effect of easing the pain of the examiner.

[Brief explanation of drawings]

Figure 1 is a side view of the main parts of a conventional endoscope;
The figure is a side view of essential parts showing one embodiment of the present invention, and FIG. 3 is a side view showing the state of use. 4... Rigid head part, 5... Ultrasonic wave transmission surface, 6...
...The light emitting surface of the detection light.

Claims (1)

[Scope of utility model registration request] In an endoscope that detects tumors inside and outside the body cavity wall by receiving ultrasonic waves from the rigid part of the head, two devices are placed side by side on the opposite side of the ultrasound transmitting surface provided in the rigid part of the head to emit detection light. An ultrasonic endoscope characterized by having a surface.