JPS63264038A - Eyeball endoscopic system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an endoscope system for observing the inside of an eyeball for diagnosis of eye diseases, surgery for lesions, etc.

Conventional technology In the field of ophthalmology, methods for observing the inside of the eyeball include:
There are two methods: fluorography of a part of the inside of the eyeball using a surgical microscope, and ultrasound B-mode tomography, which electrically processes the reflected ultrasound waves irradiated to the eyeball and projects a tomographic diagram of the eyeball on an oscilloscope monitor.

Furthermore, a fundus camera is a method for observing and observing only the fundus of the eye.

Problems to be Solved by the Invention These conventional methods cannot directly observe the entire area inside the eyeball.

In other words, in the field of ophthalmology, intraocular lesions do not necessarily appear only in areas visible under a microscope or in areas that can be detected by ultrasound diagnostic methods, and even if lesions can be confirmed, they cannot be seen under a microscope as intraocular opacification disease. In this case, it is not possible to see through the inside, and ultrasonography does not allow direct observation, making it impossible to determine changes in color tone or the exact location of the lesion.

Accordingly, an object of the present invention is to provide an endoscope system that allows direct observation of the entire intraocular region for purposes such as diagnosing eyeball diseases or performing surgery on diseased areas.

Means for Solving the Problems The present invention provides an optical fiber bundle for illumination and an optical fiber bundle for observation equipped with an objective optical system, which are inserted into a rigid outer tube to detect an object to be examined transmitted from a tubular fiber handpiece. This is an ocular endoscope system characterized by observing an image using a processing device.

Hereinafter, the present invention will be explained based on the accompanying drawings.

FIGS. 1(a), 1(b), and 1(C) are perspective views of examples of pencil-shaped tubular fiber hunt pieces used in the ocular endoscope system of the present invention, respectively.

The tubular fiber handpiece 1 includes an intraocular insertion section 2, a handpiece section 3 serving as an operating section, and a fiber cable 4 connected to the handpiece.

As shown in FIG. 2, which is a perspective view of the vicinity of the tip of the intraocular insertion portion of the tubular fiber handpiece 1, the handpiece 1 is equipped with a rigid outer tube 5, six groups of optical fiber bundles (fibers) for illumination, and an objective optical system. It consists of an observation optical fiber bundle 7. FIG. 2 is a perspective view of one example of the handpiece, which can have various other configurations, such as an arrangement in which the optical fiber bundle 6 for illumination is provided on the inside and the optical fiber bundle 7 for observation is provided on the outside.

One of the features of the present invention is that the tubular fiber handpiece itself is rigid, so that the objective optical system can be freely directed toward the object to be examined by manually or driving the handpiece.

Examples of the rigid outer tube material of the tubular fiber handpiece 1 include metals, resins, and hard rubbers used for medical purposes.

The length of the intraocular insertion part 2 of the handpiece is 2 to 8 cm, and the outer diameter is preferably thinner because surgical instruments and the like can be inserted at the same time if necessary, and is usually 2 mm or less, preferably 1 mm. It is as follows.

This intraocular insertion part 2 has a straight rod shape as shown in FIG. 1(a), or an L-shape (see FIG. b)) or a curved rod shape bent into a U-shape (Fig. 2 (C)), etc., can be manufactured, and these various shapes can be manufactured depending on the position of the intraocular test area. Use it properly.

During eye diagnosis or surgery, the intraocular insertion section 2 of the handpiece is inserted into the eyeball through an incision.

Since the insertion portion diameter of the fiber tube is 1# or less, it can be easily inserted into the eyeball during normal cataract surgery, vitrectomy, etc.

As mentioned above, the optical fiber bundle 6 for intraocular illumination and the image receiving fiber 7 are housed in the outer skin tube, and the illumination light transmitted from an external light source through the fiber cable is emitted from the tip of the illumination fiber tube. Illuminates the inside of the eyeball. The intraocular image thus illuminated is received by the image receiving fiber by the optical system, and is transmitted to the light source/image receiving section of the processing device shown in FIG. 3 through the fiber cable.

The light source/image receiving section 8 in FIG. 3 is used for a conventional endoscope system, and the fiber cable 4
The light source/image receiving section 8 can be attached and detached by a connecting section (jack type) 9.

The amount of light for intraocular illumination can be freely adjusted using the light amount knob 10.

A light source filter knob 11 is provided in the light source/image receiving section, and by applying a filter to the light source, it is possible to intravenously inject a fluorescent agent in advance and perform fluorescence observation inside the eyeball.

In addition to this, the light source/image receiving section includes an endoscope balance knob section 1.
A foot switch cable 13 and a TV monitor cable 15 are connected to each other, and as shown in FIG. The image is transmitted to the TV camera, and the image is displayed on the TV monitor 16.

The basic image processing is performed by the viewer himself using a foot switch operation panel 18, which is a known means shown in FIG. A TV monitor image is displayed at 180 degrees on a foot switch operation panel 18 connected to a light source/image receiver through a cable 13.
°Rotating up/down switch (image rotation switch)
19. Zoom switch 20. and focus switch 2
1 are provided, and the viewer observes the image on the TV monitor while operating these switches with his or her feet.

That is, the observer arbitrarily moves the fiber handpiece 1 inserted into the eyeball and operates the foot switches 19, 20, and 21 to display the intraocular image at T.
It can be displayed on V Monitor 4. Furthermore, the projected images can be recorded and saved through the \/TR system 17.

Effects of the Invention According to the ocular endoscope system of the present invention, the following effects can be achieved.

(1) Since the entire area inside the eyeball can be directly observed, diseases in areas of the eyeball that were previously difficult to observe can be easily discovered.

(2) During surgery, treatment can be performed while observing and confirming the inside of the eyeball.

(3) More reliable information regarding intraocular diseases can be obtained from close range, cataract surgery, vitrectomy surgery, etc. can be performed more safely and reliably, and ophthalmic surgery techniques can be dramatically improved.

[Brief explanation of drawings]

FIGS. 1(a), (b), and (C) are perspective views of examples of tubular fiber handpieces used in the present invention, respectively. FIG. 2 is a perspective view of the vicinity of the tip of the intraocular insertion portion of the tubular fiber handpieces. FIG. 3 is a perspective view of the light source/image receiving section of the image processing apparatus, FIG. 4 is a schematic diagram of the entire system of the present invention, and FIG. 5 is a perspective view of the foot switch operation panel. Symbols in the figure: 1... Tubular fiber handpiece; 2... Intraocular insertion part; 3... Handpiece operation part; 4...
Fiber cable; 5... Outer tube; 6... Optical fiber bundle for illumination; 7... Optical fiber bundle for observation; 8.
...Light source/image receiving part; 9...Fiber connect part;
10... Light amount knob; 11... Light source filter knob; 12... On/off switch; 13...
Foot switch cable; 14... Endoscope balance knob; 15... TV monitor cable: 16.
...TV monitor; 17...VTR system; 18
... Knot switch operation panel: 19 ... Image rotation switch: 20 ... Zoom switch; 21 ... Focus switch. Patent applicant: M&M Co., Ltd. Patent attorney Kunihisa Oya Figure 2 Figure 5

Claims (1)

[Scope of Claims] 1) Processing an image of an object to be examined transmitted from a tubular fiber handpiece formed by inserting an optical fiber bundle for illumination and an optical fiber bundle for observation equipped with an objective optical system into a rigid outer tube. An ocular endoscope system characterized by observation using a device. 2) The ocular endoscope system according to claim 1, wherein the outer diameter of the intraocular insertion portion of the tubular fiber handpiece is 1 mm or less. 3) The ocular endoscope system according to claim 2, wherein the intraocular insertion portion of the tubular fiber handpiece has a straight rod shape. 4) The ocular endoscope system according to claim 2, wherein the intraocular insertion portion of the tubular fiber handpiece has a curved rod shape. 5) The ocular endoscope system according to claim 1, wherein the rigid outer tube material is made of resin, hard rubber, or metal. 6) The ophthalmic endoscope system according to claim 1, wherein the processing device comprises a fiber cable connected to the handpiece, and a light source/image receiving device connected to this cable. 7) The ocular endoscope system according to claim 6, further comprising a TV monitor and/or a VTR system connected to the light source/image receiving device. 8) The ocular endoscope system according to claim 6 or 7, further comprising a foot switch operation panel connected to the light source/image receiving device.