JPH0417648B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a neuroendoscope device used, for example, to treat brain diseases.

(Prior Art) For example, when treating a brain disease such as intracerebral hemorrhage, conventionally, the bleeding site as the affected area is first identified using a CT scanner, and the head corresponding to this bleeding site is A circular craniotomy of approximately 5 cm is made.
In this state, the parenchyma of the brain was opened to some extent through a craniotomy, and a suction pipe was inserted into the bleeding site to suck out the blood, or a hemostatic device was used to stop the bleeding.

However, in the above conventional method, the head is approximately 5 mm in diameter.
CM also required a craniotomy, and inserting a suction pipe or hemostatic device into the brain could damage tissues other than the affected part of the brain.

Therefore, it is possible to use a well-known endoscope, but since the brain tissue is soft and fills the inside of the skull with no gaps, if the endoscope is inserted directly into the brain, the brain tissue is attached to the tip of the optical system of the endoscope, making it almost impossible to see anything.

Another possibility is to first insert a guide tube into the brain and then insert the endoscope into this guide tube, but since the guide tube has an open tip, it is difficult to insert it into the brain. If inserted into the brain, it may damage brain tissue and is not a good idea.

(Problem to be solved by the invention) This invention conventionally solves the problem by visually observing the affected part of the brain.
This method solves the problem of difficulty in performing treatment with minimal damage, and allows for treatment while visually observing the affected area of the brain, while also minimizing damage to the brain. The purpose is to provide a mirror device.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention provides an opening that can be opened and closed at the tip of the cylindrical body through which a therapeutic instrument can be taken in and taken out, The cylindrical body is provided with a light guide whose distal end is separated from the light-transmitting part by a predetermined distance and is used to visually observe the affected area.

(Function) That is, in this invention, when inserting the cylinder into the brain, the opening is first closed and then opened at the affected area, thereby minimizing damage to the brain. Moreover, because the tip of the light guide provided inside the cylinder is separated from the transparent part by a predetermined distance, when the cylinder is inserted into the brain, the required field of view is maintained even if the brain tissue is in close contact with the transparent part. This makes it easier to see the affected area.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, a first cylindrical body 11 constituting the neuroendoscope apparatus 10 is made of stainless steel, for example, and has a diameter of about 1 cm. Inside the first cylindrical body 11, a second cylindrical body 12 also made of stainless steel is rotatably housed. These first and second cylindrical bodies 11,
A dome-shaped translucent cover 13 made of, for example, quartz glass is provided at the tip of each of the 12, respectively.
14 are provided. These translucent covers 1
3 and 14 have first and second openings 15,
16 are provided. These first and second openings 15 and 16 are sized so that a suction pipe 18 equipped with a suction device 17 housed in the second cylindrical body 12 and a treatment instrument such as forceps can be inserted and removed. .

Furthermore, flanges 19 and 20 are provided at the base end portions of the first and second cylindrical bodies 11 and 12, respectively.

Furthermore, an optical fiber 21 serving as a light guide is accommodated inside the second cylindrical body 12 . This optical fiber 21 is held in the first position by a holding member 22.
is fixed to the cylindrical body 11 of the optical fiber 2.
1 is provided with a predetermined distance from the translucent cover 14.

Further, an optical system 24 containing an objective lens, a light source, etc. is provided at the base end of the optical fiber 21. A television camera can be attached to the optical system 24, and image signals output from the television camera can be displayed on a monitor television.

When performing treatment using the neuroendoscope device 10 having the above configuration, the second cylinder 12 is rotated relative to the first cylinder 11, as shown in FIG. 15 is closed with a translucent cover 14.

On the other hand, as shown in FIG. 4, a stereotactic device 31 is fixed to the patient's head 30, and a probe with a diameter of about 1 cm is placed corresponding to the bleeding site identified using the CT scanner device.
An opening 32 is formed.

The brain endoscope is attached to a holding part 33 provided on the stereotactic device 31 corresponding to the opening 32, and in this state, while visually observing the optical system 24 of the optical fiber 21, the brain endoscope 10 is Open the tip 32
inserted into the brain. When the bleeding site can be confirmed, the brain endoscope device 10 is attached to the holder 33 using the screw 34 provided on the holder 33.
Fixed at 3.

After that, by operating the flange 20, the second cylindrical body 1
2 to align the first and second openings 15 and 16. In this state, the tip of the suction pipe 18 is guided to the bleeding site through the first and second openings 15 and 16, and the blood is suctioned by the suction device 17.

In addition, when performing hemostasis, forceps are guided to the bleeding site through the first and second openings 15 and 16, and the forceps are used to stop the bleeding.

According to the above embodiment, the translucent cover 13 has the first and second openings 15 and 16 at the distal ends of the first and second cylindrical bodies 11 and 12 constituting the neuroendoscope device 10. , 14 are provided, and when the neuroendoscope device 10 is inserted into the brain, the first opening 15 provided in the cover 13 is closed. Therefore, since the first cylindrical body 11 is sealed at its distal end, damage to the brain caused by the first and second openings 15 and 16 occurs when the neuroendoscope device 10 is inserted into the brain. can be suppressed.

In addition, since the covers 13 and 14 are dome-shaped, when inserting the neuroendoscope device 10 into the brain,
It can prevent brain damage.

Further, the distal end of the brain endoscope device 10 is provided with translucent covers 13 and 14, and the distal end of the optical fiber 21 is separated from the cover 14 by a predetermined distance, so that it When inserting the endoscopic device 10 into the brain, even if the brain tissue comes into close contact with the cover 14, the required field of view can be obtained and the affected area can be reliably confirmed.

Next, a second embodiment of the present invention will be described with reference to FIG. In FIG. 5, the same parts as in FIGS. 1 to 4 are given the same reference numerals.

In FIG. 5, the tip of the suction pipe 18 is
Second opening 16 provided in the translucent cover 14
are installed integrally with no gaps.

With such a configuration, the first and second
When blood is sucked by aligning the openings 15 and 16 of the optical fiber 21 with the openings 15 and 16, the blood does not enter the transparent cover 14 from the second opening 16, so that the blood does not adhere to the tip of the optical fiber 21. It is possible to maintain good visibility at all times, and treatment is easy to perform.

Furthermore, by inserting a hemostatic device through the suction pipe 18, hemostasis can be achieved.

In the above embodiment, an optical fiber is used as the light guide, but the invention is not limited to this. For example, an image sensor such as a CCD camera is provided in the second cylinder, and the image sensor is used to measure the affected area. It is also possible to perform treatment while taking pictures.

Furthermore, although the first and second cylindrical bodies 11 and 12 and the covers 13 and 14 are constructed separately from stainless steel and quartz glass, they are not limited thereto; for example, they are integrally constructed from resin. It is also possible to do so.

Furthermore, in the above embodiment, the first and second cylindrical bodies 1
Translucent covers 1 are placed on the tips of 1 and 12, respectively.
3 and 14 are provided, and these translucent covers 13 and 14 are provided.
Although the first and second openings 15 and 16 are provided in a part of the tube, the cylindrical body and the transparent cover do not necessarily have to have a double structure; for example, the first cylindrical body 11 and the transparent cover Basically, it can be implemented as a structure in which the cover 13 only is used, and the opening 15 is closed with a plug, for example, when the cylinder is inserted into the brain, and the plug is removed from the cylinder at the affected area. It is possible.

It goes without saying that various other modifications can be made without departing from the gist of the invention.

[Effects of the Invention] As detailed above, according to the present invention, when inserting a cylinder into the brain, the opening is first closed and then opened at the affected area, thereby minimizing damage to the brain. It can be suppressed.

Moreover, since the tip of the light guide provided inside the cylinder is separated from the transparent part by a predetermined distance, even if brain tissue comes into close contact with the transparent part when the cylinder is inserted into the brain, it will not affect the affected area. It is possible to secure a sufficient field of view necessary for observation.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1, FIG. 3 is a bottom view of FIG. It is a side sectional view showing an example of this. 10... Brain endoscope device, 11, 12... 1st,
Second cylindrical body, 13, 14...Cover, 15, 16
...first and second openings, 18...suction pipe,
21...Optical fiber. .

Claims (1)

[Scope of Claims] 1. A cylindrical body having a transparent part at its distal end and an openable/closable opening through which a therapeutic instrument can enter and exit the transparent part; 1. A brain endoscope device comprising: a light guide that is separated from a light-transmitting part by a predetermined distance and that guides light to the outside of a cylinder.