JPH01303121A - Internal diagnosing device - Google Patents

Abstract

PURPOSE:To correctly and efficiently inspect and diagnose the internal body by mutually crossing at least a pair of operating wires inserted into an angle part at a position on the way in order to operate the angle of the angle part. CONSTITUTION:An angle knob 15 provided at a main body operating part 10 is operated, and an angle part 11b is curved so that a tip hard part 11a can direct an ultrasonic wave transmitter-receiver 12 to a cavity wall to execute the ultrasonic wave diagnosis. The part at a tip side from the cross part of an operating wire 22 at an angle part 11b is bent in the direction opposite to the curved direction, the tip hard part 11a is displaced in the rising direction and the ultrasonic wave transmitter-receiver 12 can be made close to the cavity wall. The ultrasonic wave pulse is transmitted in the arrow direction by the transmitter-receiver 12, the reflecting wave is received, the signal is signal processed in a control device 14, and thus, acoustic information in the body can be obtained, the signal can be displayed at the display device such as cathode ray tube and the diagnosis in the body can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an in-vivo diagnostic device, such as an ultrasonic diagnostic device or an endoscope, for performing examination and diagnosis inside the human body.

[Prior art 1] As an in-vivo diagnostic device, for example, an ultrasound diagnostic device is
As shown in the figure, the insertion part 1 into the patient's body is connected to the main body operation part, and the insertion part 1 is inserted into the body through the oral cavity, nasal cavity, etc., and is inserted into the patient's body through the esophagus, stomach, etc. The structure is such that it is possible to conduct examinations and diagnoses, such as the presence or absence of lesions in the subcutaneous tissue, based on the reflected waves by emitting ultrasonic pulses from the esophagus wall or stomach wall. Here, the ultrasonic transducer 2 is mounted on the rigid distal end portion 1a of the insertion section 1 so as to face the outside from the side thereof, and an angled portion 1b is connected to the rigid distal end portion 1a. The portion between the angle portion 1b and the main body operation portion is a flexible portion IC. The flexible portion lc is designed to bend freely along the insertion path in the body cavity, and the angled portion 1b is arranged vertically and downwardly so that the rigid tip portion 1a can be directed in a desired direction. , or can be curved vertically, horizontally, or vertically.

[Problem to be solved by the invention 1 By the way, since ultrasonic waves are significantly attenuated in the air, the ultrasonic transducer 2 must be in close contact with the body cavity wall to transmit and receive TFL sound waves. . In order to bring this ultrasonic transducer 2 into close contact with the body cavity wall, it is connected to the ankle part 1b or the rigid tip IC.
By bending the A-sonic transducer 2, the a-sound transducer 2 is pressed against the body cavity wall. However, when the ankle portion 1b is bent, the rigid tip portion 1c is oriented in the direction of extension of the curved portion of the angle portion 1b, and the tip corner of the rigid tip portion 1c is pressed against the body cavity wall. As a result, the ultrasound transducer 2 attached to the side cannot necessarily be brought into close contact with the wall of the body cavity, making it difficult to accurately perform ultrasound diagnosis inside the body.

Further, as shown in FIG. 7, even when configured as the insertion section 3 of an endoscope, if the angle section 3b connected to the flexible section 3a is curved, the observation window provided on the rigid distal section 3c can be bent. However, it has the disadvantage that it sticks closely to the body cavity wall, making it impossible to obtain a field of view for observation, which hinders examinations and diagnosis.

The present invention has been made in view of the above points, and its purpose is to provide an in-vivo diagnostic device that allows for accurate and efficient internal examination and diagnosis. It's about doing.

[Means for Solving the Problems 1] In order to achieve the above-mentioned object, the present invention provides at least one pair of operation wires inserted through the ankle part at a midway position in order to operate the angle part. It is characterized by the fact that they intersect with each other.

[Operation 1] With the above-described configuration, when the angle portion is bent by pushing and pulling the operating wire, the portion beyond the intersection of the operating wires and the hard tip portion connected to the operating wire It is caused to be displaced so as to be warped in the opposite direction to the ankle direction. Therefore, when used as an ultrasonic diagnostic device with an ultrasonic transducer attached to the side of the rigid tip, the ultrasonic transducer can be placed in close contact with the body cavity wall, and when transmitting and receiving ultrasound waves. It has become possible to significantly reduce the attenuation of ultrasonic waves in inspections and
Diagnosis can be performed efficiently. In addition, when an observation window is provided on the rigid tip and configured as an endoscope for observing inside the body cavity, the distal end surface of the rigid tip can be directed forward when the angle is adjusted. At the same time, the lumen can be pushed wider, making it possible to see from a distance, making it possible to efficiently examine narrow lumens such as the esophagus and intestines.

[Embodiment 1] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 to 4 show a first embodiment of the present invention, and in this embodiment, an in-vivo diagnostic device according to the present invention is configured as an ultrasonic diagnostic device. .

First, FIG. 1 shows the overall configuration of an ultrasonic diagnostic apparatus. In the figure, reference numeral 10 indicates a main body operating section of the ultrasonic diagnostic apparatus, and an insertion section 11 that is inserted into a body cavity is connected to the main body operating section 10. This insertion section 11 includes, from the distal end side, a hard distal section 11a, an angled section 11b, and a flexible section 11.
An ultrasonic transducer 12 is attached to the rigid tip portion 11a so as to face the outside from the side of the rigid tip portion 11a.

A cable for driving the ultrasonic transducer 12 to generate ultrasonic waves and for transmitting signals related to reflected waves of the ultrasonic waves is connected to the main body operation section from the ankle part 11b through the inside of the flexible part 11c. 10, and the main body operation section 10
It is connected to a control device 14 by a cable 13 connected to.

Here, as shown in FIGS. 2 and 3, the angle portion 11b has a large number of angle rings 20 that are mutually pivoted by connecting pins 21 between adjacent angle rings 20 and 20 on both left and right sides. In addition, one or more operating wires 22 are inserted into the upper and lower positions, respectively.
One end of this operating wire 22 is fixed to the angle ring 20a connected to the rigid tip portion 11a or the wall of the rigid tip portion 11a, and the other end is extended from the flexible portion 11c into the main body operating portion 10, The angle knob 15 provided on the main body operating section 10 allows push/pull operation. Note that the outer side of the angle ring 20 in the angle portion 11b is covered with an outer skin tube, and its illustration is omitted.

The operating wire 22 is guided by passing through a wire guide 23 provided on the inner surface of the angle ring 20, and is connected to the tip side of the angle portion 11b, that is, to the hard tip portion 11a. Second ankle ring 20b and third angle link 20 from the side
c, the upper and lower operating wires 22 are connected to each other.
The upper and lower operating wires are oriented downwardly and the lower operating wires are oriented upwardly. Therefore, when the operating wire 22 is pushed or pulled, the hard tip portion 11a is deflected in the opposite direction to the angle direction, as shown in FIG.

This embodiment is configured as described above, and the insertion portion 11
As shown in FIG. 4, the rigid distal end portion 11a is guided through the oral cavity or nasal cavity to a predetermined observation target within a body cavity such as the esophagus or stomach. Therefore, by operating the angle knob 15 provided on the main body operation section 10, the hard tip portion 11a is
The angle portion 11b is curved so that the ultrasonic transducer 12 faces the vaginal wall where ultrasonic diagnosis is to be performed. At this time,
The portion of the angle portion 11b on the tip side from the intersection of the operating wires 22 is bent in the opposite direction to this bending direction, and the hard tip portion 11a is displaced in the rising direction, thereby transmitting and receiving ultrasonic waves. The device 12 can now be brought into close contact with the vaginal wall.

Therefore, the ultrasonic transducer 12 transmits an ultrasonic pulse in the direction shown by the arrow in FIG. , it is possible to obtain acoustic information inside the body, and by displaying this signal on a display device such as a cathode ray tube, it becomes possible to diagnose the inside of the body. Since the ultrasonic transducer 12 can be placed in close contact with the vaginal wall of the body cavity, it is possible to minimize the attenuation of ultrasonic waves when transmitting and receiving them. This means that diagnosis can be performed with high accuracy. In particular, when making a diagnosis using high-frequency ultrasound with excellent decomposition performance, if the ultrasound transducer 12 is far from the vaginal wall, the attenuation of the ultrasound becomes particularly significant, making the examination impossible. As in the present invention,
If the ultrasonic transducer 12 can be brought into close contact with the vaginal wall, it becomes possible to smoothly perform internal examinations and diagnoses using high-frequency ultrasonic waves.

Further, as shown in FIG. 5, in an endoscope for optically inspecting and diagnosing the inside of a body cavity, the insertion portion
If the angle part 30b connected to the flexible part 30a is made to intersect with the operating wire at a position in the same way as the angle part 11b in the insertion part 11 of the ultrasonic diagnostic apparatus described above, the ankle part 30b can be angled. When operated, the ankle portion 30b bends into a substantially S-shape, and the end surface of the rigid tip portion 30c can be directed forward and diagonally upward, and if an observation window is provided on this end surface, Now you can look forward and see
When observing a narrow cavity, etc., the observation field of view is widened and it is possible to see from a distance, thereby improving observation accuracy.

In particular, when configured as the ankle part 30b of an endoscope, the observation window provided on the distal end surface needs to face forward, so the crossing position of the operating wires should be on the distal end side, as in an ultrasonic diagnostic device. It is preferable to set it at this position or at a position slightly closer to the flexible portion 30a than this position. In addition, especially when used as an endoscope, there are not only one pair of operating wires on the top and bottom, but also one pair on the left and right sides, so that the angle can be operated in any direction by using each pair of operating wires on the top and bottom and left and right. However, in such a device, only the upper/lower, left/right pairs of operating wires may be crossed, or each pair of upper/lower and left/right operating wires may be crossed. It is also possible to have the operating wires cross each other.

[Effect of the Invention 1] As explained above, according to the present invention, the operating wires inserted through the angle portion are configured to intersect with each other at intermediate positions, so that when configured as an ultrasonic diagnostic device, The ultrasonic transducer can be placed in close contact with the vaginal wall of the body cavity, minimizing the attenuation of ultrasonic waves, and when configured as an endoscope, it has a wide field of view. can be ensured, and overall inspection and diagnosis accuracy can be improved.

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the present invention, in which FIG. 1 is an overall configuration diagram of an ultrasonic diagnostic apparatus, and FIG. 2 is a configuration showing an ankle ring and an operating wire in an ankle portion. 3 is an explanatory diagram of the operation of the angle portion, FIG. 4 is an explanatory diagram of the action, FIG. 5 is an explanatory diagram of the action showing the second embodiment of the present invention, and FIGS. 6 and 7 are the prior art. FIG. 6 is an explanatory diagram of the operation of the in-vivo diagnostic device, and FIG.
The figures each show an endoscope. IO = main unit operation section, 11.30: insertion section, lla, 30
a: Flexible part, llb, :lOb: Ankle part, 1
1. c, :ioc: tip rigid part, 12 ultrasonic transducer, 20.20a. 20b', 20c/Ankle link, 22: Operation wire. Figure 1 Uc

Claims (1)

[Claims] An in-vivo device comprising a main body operating section, a flexible section, an angled section, and a rigid distal section, which connects an insertion section into a body cavity, and the rigid distal section is provided with a mechanism for diagnosing the inside of the body. An in-vivo diagnostic device characterized in that, in order to operate the angle portion, at least a pair of operation wires inserted through the angle portion are arranged to intersect with each other at an intermediate position.