JP6823249B2 - Nasopharyngeal soft endoscopic running water washer with reverse radial and swirl water flow - Google Patents

Description

The present invention relates to a nasopharyngological flexible endoscope running water washer that operates only by tap water pressure for removing contamination of a nasopharyngological flexible endoscope that is often used in otolaryngology.

Conventionally, the following relatively inexpensive running water washer for nasopharyngeal flexible endoscopes is commercially available. The nasopharyngeal endoscope insertion part is inserted into the vertically installed cleaning pipe to fix the endoscope operation part, and tap water is injected from above the pipe to fill the inside of the pipe and flow down to the endoscope insertion part. As for the lens surface at the tip of the endoscope insertion part that faces directly below, a flat or concave curved plate called a running water reversing plate, which is slightly smaller than the inner diameter of the pipe, is located in the center of the pipe. By being installed horizontally, a part of the running water is inverted, which hits the lens surface to be washed and then drained through the periphery of the flowing water inversion plate.

The conventional nasopharyngeal flexible endoscopic running water washer has the following drawbacks. In order to perform effective cleaning with this washer, it is necessary to position the tip of the endoscope directly above the running water reversing plate so that the reversed running water vigorously hits the tip lens surface. The reality is that it is difficult to complete the cleaning with the tip of the mirror in this position each time. Since the object to be cleaned is not a hard rod-shaped object but a flexible endoscope, the entire insertion part is rarely located at the center of the cleaning tube, and a part of it approaches the inner wall of the cleaning tube with an inner diameter of about 15 mm. It often adheres, and the tip of the endoscope, which was in an ideal position just before the start of cleaning, comes off from the flowing water reversing plate in the center of the pipe due to the force of the flowing water reversed at the same time as the start of cleaning. The main reason is that it tends to be located on the outside. In many medical facilities, cleaning is performed without confirming that the tip of the endoscope is in the most appropriate position, and there is a concern that the original cleaning effect is insufficient.

In addition, before the release of the above-mentioned nasopharyngeal flexible endoscope washer, as a pioneering model, the lens surface of the endoscope tip was positioned in an L-shaped pipe provided at the lower end of the pipe, and the flowing water changed the flow at a right angle to directly underneath. There was also a model with a structure that cleans the tip lens surface facing the lens, but the lens surface of the flexible endoscope is often not facing directly downward during cleaning, and the stability of the cleaning effect on the lens surface is stable. Was questioned.

It is common to the nasopharyngeal flexible endoscopes having the above two structures, but the amount of flowing water is not sufficient except for the tip of the endoscope insertion part because it is simply washed by flowing water flowing on the side surface. There may be areas around the endoscope that do not come into contact with water, and there is concern that the cleaning effect may be spotted .

Actual climb 3185077 Japanese Patent Application Laid-Open No. 2008-16899 Japanese Patent Application Laid-Open No. 07-116116

Koken Co., Ltd. "Nasopharyngeal Fiberscope Type 3", [Searched on June 1, 2016], Internet <URL: http: // ameblo. jp / hiromtsukamoto / entry-114906855453. html> Takatsugu Itabashi, 6 others, "Examination of Fiberscope Washer with Running Water" Otolaryngology 84:11; 1615-1623, 1991

Problems to be solved by the invention

The present invention, except for the shortcomings in the flushing device of the conventional nasopharyngeal flexible endoscope, to be able to wash the endoscope insertion portion more effectively as a first object, more effectively the top lens surface The second purpose is to enable the cleaning .

Means to solve problems

In the first invention, from the outer wall surface of a pipe installed vertically with the lower end closed, a plurality of small holes angled in the upper right or upper left direction are made toward the inside of the pipe, and water or cleaning liquid is poured diagonally upward from here. With a flexible endoscope cleaner having a structure in which water or cleaning liquid that rises from below flows around the flexible endoscope insertion part installed in the pipe while rotating to clean it by ejecting it. is there.
In the second invention, in a pipe installed vertically with the lower end closed , a small hole is made in the lower end surface of the pipe, and water or cleaning liquid is ejected upward in the pipe so that the ejected water or cleaning liquid can be discharged. It has a structure that rises while cleaning the lens surface of the tip of the endoscope installed directly above the lower end of the pipe, and in the pipe, a large number of small holes are provided in a reverse radial pattern from the outer wall surface below the pipe toward the center of the pipe. By ejecting water or a cleaning liquid from the pipe and fixing the tip of the endoscope insertion portion near the center of the pipe with water pressure, the tip of the endoscope insertion portion swings due to the running water in the pipe and in the pipe. It is a flexible endoscopic cleaner with a structure that avoids bias.

The invention's effect

According to the first invention, the endoscope insertion portion can be cleaned more effectively. According to the second invention, the tip lens surface can be cleaned more effectively.

It is a perspective view of this invention. It is a water flow explanatory drawing of this invention.

Hereinafter, embodiments of the present invention will be described.
Below the transparent acrylic pipe installed vertically is a double structure consisting of a cleaning pipe outer cylinder (4) and a cleaning pipe inner cylinder (5). The endoscope insertion part (1) is placed in the inner cylinder of the cleaning tube so that the lens surface (3) at the tip of the endoscope comes to a position 10 to 20 mm from the upper surface of the bottom plate (6) of the inner cylinder (2). It is installed by fixing. Guide the running water from the water tap to the tap water inlet (13) with a hose, and use a commercially available foam generator << household micro bubble generator BU-BU >> (14) and a drain cock to drain the water from the washing pipe after cleaning. Injecting running water via (15) Running water is injected from the L-shaped pipe (17) into the outer cylinder (4) of the cleaning pipe. The water filled in the outer cylinder of the washing pipe closed at the top and bottom is vigorously ejected into the inner cylinder from a large number of water injection holes having a diameter of 1.5 mm opened in the inner cylinder of the washing pipe. First, the water ejected from the bottom plate water injection hole (7) rises while cleaning the endoscope tip lens surface (3) located 10 to 20 mm above the upper surface of the inner cylinder bottom plate (6). The water ejected from the 15 reverse radial water injection holes (8) on the side wall of the inner cylinder, which is opened 30 mm from the upper surface of the bottom plate of the inner cylinder, toward the center of the inner cylinder is used for the flexibility of the flexible endoscope. The vicinity of the tip of the endoscope, which tends to come into contact with the inner wall of the inner cylinder, is moved to the center to enhance the cleaning effect near the tip of the endoscope. Further, the water ejected diagonally upward from the three lateral oblique water injection holes (9) opened 45 mm above the upper surface of the bottom plate of the inner cylinder gives rotation to the water rising from below, and the endoscope insertion portion (1). Effectively clean the area above the tip with a swirling water stream. The water that overflows from the cleaning pipe inner cylinder (5) to the drainage funnel pipe (11) collects in the drainage pipe (10), and is drained from the drainage pipe (12) to the sink of the sink through the hose. The drainage funnel tube (11) is a form for facilitating the insertion of the endoscope insertion part (1) into the cleaning tube inner cylinder (5), but the endoscopy insertion part used for the patient is contaminated by touching it. Since it is an unavoidable part, it has a structure that is always washed with rising running water, similar to the inner cylinder of the washing pipe. Since the size of the bubbles can be adjusted for the foam generator (14), the size of the bubbles should be adjusted to the minimum size at which the movement of running water can be confirmed in consideration of the cleaning effect of the microbubbles. In addition, judging from the movement of bubbles, cleaning is performed by adjusting the opening and closing of the tap to the amount of water flowing within the range where an effective water flow can be obtained. After the cleaning is completed, the drain cock (15) is opened and the water in the cleaning pipe inner cylinder (5) and the cleaning pipe outer cylinder (4) is drained through the residual water drain port (16) in the cleaning pipe.
This embodiment can be paraphrased as follows.
It is the same as the conventional running water washer in that the nasopharyngeal flexible endoscope insertion part (1) and the tip lens surface (3) are washed with running water in a vertically fixed clear acrylic washing tube. As a very different device, the lower part of the cleaning pipe has a double pipe structure of the cleaning pipe outer cylinder (4) and the cleaning pipe inner cylinder (5), and the water filled in the cleaning pipe outer cylinder (4) closed at the top and bottom. Has a structure in which is ejected into the inner cylinder from a plurality of water injection holes having a diameter of 1.5 mm. Further, in order to confirm the water flow in the washing pipe, a commercially available foam generator (14) was attached before the running water was injected from the water supply into the washing pipe outer cylinder (4). First, the water ejected vigorously from the four bottom plate water injection holes (7) opened in the inner cylinder bottom plate (6) is the endoscope tip lens surface located 10 to 20 mm above the upper surface of the inner cylinder bottom plate (6). It rises while hitting (3). Next, the inner wall of the inner cylinder is vigorously ejected from the 15 reverse radial water injection holes (8) on the side wall of the inner cylinder of the cleaning pipe provided at a position 30 mm from the upper surface of the bottom plate (6) of the inner cylinder. The effect is that the vicinity of the tip of the endoscope, which tends to be close to, is moved to the center. Furthermore, the water ejected diagonally upward from the three lateral oblique water injection holes (9) opened 45 mm above the upper surface of the inner cylinder bottom plate (6) gives rotation to the water rising from below, and the endoscope The structure is such that the portion above the tip of the insertion portion (1) is surrounded by a swirling water stream and rises.
The following was clarified from the movement of bubbles generated by the bubble generator (14). The lower part of the insertion portion near the lens surface (3) at the tip of the endoscope is brought closer to the center of the inner cylinder (5) of the cleaning tube by the flowing water vigorously ejected from the reverse radial water injection hole (8) immediately after the start of running water injection. As a result, the lens surface (3) at the tip of the endoscope is turbulent in the lower center of the inner cylinder caused by the influence of the water ejected upward from the bottom plate water injection hole (7) at the bottom of the inner cylinder and the water existing above. Wrapped in. That is, it is expected that the vicinity of the tip of the endoscope insertion portion including the tip lens surface is sufficiently washed with running water. For the endoscope insertion part (1) other than the tip part, a vortex of running water having a rotating element apparently due to the water ejected from the three lateral oblique water injection holes (9) surrounds the insertion part (1). Since it rises vigorously to reach the drainage portion (10), there is a high possibility that this portion will also be sufficiently washed with running water. In addition, the water that is vigorously ejected from the reverse radial water injection hole (8) toward the center of the cleaning pipe inner cylinder (5) is unnecessary near the tip of the endoscope insertion part due to the rotation of the water in the cleaning pipe inner cylinder. It also suppresses the rotation. Cleaning by this method reduces the inadequate cleaning effect of the endoscope tip lens surface and the endoscope insertion part, which has been a concern in the use of a conventional running water washer, and also reduces the foam generator (14). ) Makes it possible to check movements such as rotation of running water, making it easy to adjust the amount of running water suitable for cleaning.
In this way, according to the flexible endoscopic washer of the present embodiment, the endoscopy is relatively inexpensive and simple, except for the drawbacks of the conventional running water washer of the nasopharyngeal flexible endoscope. The mirror insertion portion and the tip lens surface can be cleaned more effectively.

The present invention helps to avoid nasopharyngeal soft endoscopic iatrogenic infections contaminated with pathogenic microorganisms after observing the patient's nose, pharynx and larynx. Since it operates under the running water pressure of the water supply, it is inexpensive and easy to use, so it may be widely used in medical facilities centered on otolaryngology by being marketed in the industry that manufactures endoscope cleaners.

1 Endoscope insertion part 2 Endoscope operation part 3 Endoscope tip lens surface 4 Cleaning tube outer cylinder 5 Cleaning pipe inner cylinder 6 Inner cylinder bottom plate 7 Bottom plate water injection hole 8 Reverse radial water injection hole 9 Side oblique water injection hole 10 Drainage part 11 Drainage part Leakage pipe 12 Drainage pipe 13 Tap water inflow port 14 Bubble generator 15 Drainage cock 16 Residual water drainage port in cleaning pipe 17 Tap water inflow L-shaped pipe

Claims (3)

From the outer wall surface of the pipe placed vertically closing the lower end opened plurality of right or on the upper left to the small holes angled into the pipe, by jetting here than water or cleaning liquid obliquely upward, from below A flexible endoscope cleaning device having a structure in which rising water or cleaning liquid flows around a flexible endoscope insertion portion installed in the pipe to clean the water or cleaning liquid while rotating. Drilled a small hole in the pipe lower end surface in the pipe, by water or washing liquid is spouted upward in the pipe, endoscope tip lens among said jetted water or cleaning fluid is placed directly above the pipe bottom Chi lifting a structure that rises while washing the face,
In the pipe, a large number of small holes are provided in a reverse radial pattern from the outer wall surface below the pipe toward the center of the pipe, and water or cleaning liquid is ejected from the small holes to fix the tip of the endoscope insertion portion near the center of the pipe with water pressure. The flexible endoscope washer according to claim 1, which has a structure for avoiding swinging of the tip end portion of the endoscope insertion portion due to running water in the pipe and bias in the pipe . In a pipe installed vertically with the lower end closed, a small hole is made in the lower end surface of the pipe, and water or cleaning liquid is ejected upward in the pipe, so that the ejected water or cleaning liquid is installed directly above the lower end of the pipe. It has a structure that rises while cleaning the lens surface of the tip of the endoscope.
In the pipe, a large number of small holes are provided in a reverse radial pattern from the outer wall surface below the pipe toward the center of the pipe, and water or cleaning liquid is ejected from the small holes to fix the tip of the endoscope insertion portion near the center of the pipe with water pressure. A flexible endoscope washer having a structure that avoids swinging of the tip of the endoscope insertion portion due to running water in the pipe and bias in the pipe.

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