JPS6258255B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic diagnostic device that is used by being inserted into a living body. An object of the present invention is to provide an ultrasonic diagnostic device that can accurately insert a puncture needle into a desired site under ultrasonic diagnosis while grasping the subsurface condition, and can perform accurate and safe puncture treatment. .

The first embodiment of the present invention will be described below with reference to FIGS. 1 to 3.
This will be explained based on the diagram. The present embodiment is a so-called rigid scope type ultrasonic diagnostic device, in which 1 is an elongated rigid insertion section that is inserted into a body cavity, 2 is a tip component located at the tip of the insertion section 1, Reference numeral 3 indicates an operation unit on the hand side, and reference numeral 4 indicates a universal cord connected to a light source device (not shown). Furthermore, an ultrasonic probe 5 is attached to the tip component 2, with an ultrasonic wave transmitting/receiving surface facing toward the side. 6 is a damper material. This ultrasonic probe 5 has an insertion section 1
It is an electronic scanning type ultrasonic probe that scans within the scanning range S with the axial direction of the probe being the scan direction,
This ultrasonic probe 5 is connected to an ultrasonic transmitter/receiver (not shown) via a signal cable 7 that passes through the insertion section 1. A display (not shown) that visually displays a tomographic image under the body cavity wall obtained by transmitting and receiving ultrasound is connected to this ultrasound transmitter/receiver.

Further, the tip structure section 2 is provided with an observation optical system 8 having a field of view in the direction to be inspected by the ultrasonic probe 5, and an illumination optical system 9 that provides illumination light to the section to be observed. 10 is an air/water supply nozzle.

Furthermore, a puncture needle outlet 11 is provided in the tip component 2 in parallel to the ultrasound probe 5 . This puncture needle outlet 11 allows the needle tip 12a of the flexible puncture needle 12 to be led out obliquely in the direction to be examined by the ultrasound probe 5.
communicates with a guide hole 13 formed in the tip component 2, and this guide hole 13 is connected to a guide pipe 14. The other end of the guide pipe 14 passes through the insertion section 1 and is guided toward the operation section 3, and is opened at an insertion port 15. Reference numeral 16 denotes a syringe for feeding a medical solution or the like into the puncture needle 12.

The puncture needle 12 is configured such that the protruding angle of its needle tip 12a can be adjusted by a puncture needle guide mechanism 20. This puncture needle guide mechanism 20 is configured as follows. That is, inside the puncture needle outlet 11, a raising stand 21 is provided rotatably about a pivot 22 for adjusting the protruding angle of the needle tip 12a. The raising table 21 has a guide surface 21a that abuts the midway side surface of the puncture needle 12, and is configured to deflect the needle tip 12a by adjusting the angle of the guide surface 21a.
Reference numeral 23 denotes an operating wire for adjusting the rotation angle of the elevating table 21. The distal end of the operating wire 23 is fixed to the elevating table 21, and the proximal end of the operating wire 23 is inserted through the insertion section 1. Guided by the operation section 3,
It is wound around the pulley 24. Reference numeral 25 denotes an operation knob that rotates the pulley 24. By operating this operation knob 25 and pulling the wire 23, the lifting platform 21 is remotely controlled and rotated according to the amount of pulling. ing.

The ultrasonic diagnostic apparatus configured as described above inserts the insertion section 1 into a body cavity, performs visual observation using the observation optical system 8, positions the tip component 2 at a target site within the body cavity, and transmits ultrasonic waves. The transmitting and receiving surface of the probe 5 is brought into close contact with the surface of the body cavity wall A to be examined. When the ultrasonic transmitter/receiver is operated in this state and ultrasonic scanning is performed by the ultrasonic probe 5, an ultrasonic tomographic image within the scanning range S is displayed on a display (not shown) based on the received ultrasonic echoes.
If a puncture target site B is found in the tomographic image, the puncture needle 12 is set so that it can protrude at a protrusion angle θ corresponding to the depth of the puncture target site B.
The rotation angle of the raising table 21 is adjusted by operating the operation knob 25. That is, when the puncture target site B is at a shallow position, the protrusion angle θ is adjusted to be small, and when the puncture target site B is at a deep position, the protrusion angle θ is adjusted to be large.

Then, the puncture needle 12 inserted into the guide pipe 14 from the insertion port 15 is further pushed in, so that the needle tip 12a protrudes obliquely from the puncture needle outlet 11, and is caused to pierce the body cavity wall A. Then, an ultrasonic echo is generated by the puncture needle 12, and the puncture needle 12 is confirmed in the ultrasound tomographic image on the display, so while observing the position of the echo of the puncture needle 12 in the tomographic image,
The amount of penetration of the puncture needle 12 is adjusted and guided to the target site B. Then, the syringe 16 is used to inject a medicinal solution or other desired fluid.

In this way, according to the device of this embodiment, by using ultrasound, it is possible not only to discover the puncture target site B hidden under the surface of the body cavity wall, but also to accurately pierce the puncture needle 12 into this site B. This allows for accurate and safe treatment. Moreover, according to this embodiment, since the electronic scanning type ultrasound probe 5 is used, there is an advantage that ultrasound diagnosis and puncture can be carried out over a wide range while the position of the insertion section 1 with respect to the body cavity remains fixed.

Moreover, since the distal end component 2 is equipped with an observation optical system 8 that allows visual observation in the same direction as the diagnosis direction using ultrasound, the state of the body cavity wall surface can be observed simultaneously, making it possible to perform more accurate and rapid observation. diagnosis,
It is something that can be treated.

It goes without saying that the present invention can also be applied to a so-called flexible endoscope type having a flexible insertion section 1, as shown in FIG. 4 as a second embodiment. Since the basic configuration and operation and effects of the second embodiment are the same as those of the first embodiment, corresponding parts are designated by the same reference numerals and a description thereof will be omitted.

As explained above, the present invention is provided with an ultrasonic probe for ultrasonic diagnosis at the distal end component of the insertion section, and also allows the puncture needle to protrude toward the area to be examined by the ultrasonic probe. , while grasping the condition under the surface of the body cavity wall or the surface of the organ through ultrasound diagnosis, the puncture needle can be accurately inserted into the desired site under the ultrasound diagnosis,
Accurate and safe puncture treatment can be performed.

[Brief explanation of the drawing]

FIG. 1 is a side view of an ultrasonic diagnostic device showing an embodiment of the present invention, FIG. 2 is a plan view of the tip of the same diagnostic device, FIG. 3 is a longitudinal cross-sectional side view of the tip, and FIG. FIG. 2 is a side view of an ultrasonic diagnostic apparatus showing a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Insertion part, 2... Tip structure part, 3... Operation part, 5
...Ultrasonic probe, 8...Observation optical system, 9...Illumination optical system, 11...Puncture needle outlet, 12...Puncture needle, 12
a... Needle tip, 20... Puncture needle guide mechanism, 21... Elevator, 21a... Guide surface, 23... Operation wire, 25...
operation knob.

Claims (1)

[Scope of Claims] 1. An ultrasonic probe provided with the ultrasonic transmitting/receiving surface facing laterally at the distal end component of an elongated insertion portion to be inserted into a living body, and an ultrasonic probe disposed in parallel with this ultrasonic probe. 1. An ultrasonic diagnostic apparatus comprising a puncture needle outlet for leading out a puncture needle in a direction to be examined by a sonic probe in a manner that the puncture needle can be protruded and retracted. 2. Claim 1, characterized in that the puncture needle outlet is provided with a puncture needle guide mechanism that adjusts the protruding angle of the tip of the puncture needle by remote control from an operating unit on the hand side. The ultrasonic diagnostic device described in Section 1. 3. The ultrasonic diagnostic apparatus according to claim 1, wherein the ultrasonic probe is an electronic scanning ultrasonic probe that scans in the axial direction of the insertion section. 4 The puncture needle guide mechanism operates a rotatable raising table having a guide surface that deflects the needle tip by abutting the midway side of the puncture needle, and an operation knob provided on the operation section. Claim 2, characterized in that:
The ultrasonic diagnostic device described in Section 1. 5. A patent characterized in that the distal end component of the insertion section is configured to include an observation optical system having a field of view in the direction to be inspected by the ultrasonic probe, and an illumination optical system that provides illumination light to the section to be observed. An ultrasonic diagnostic apparatus according to any one of claims 1 to 4.