JP3376076B2 - Disposable tube for cleaning the end lens of the endoscope rod - Google Patents

Abstract

PURPOSE:To improve sanitation and prevention of epidemic by using a disposable tip lens cleaning tube which is structured in such a manner that a portion to be mounted which is composed of a pressed-contact inner wall in securely contact with the endoscope shaft and multiple pore inner walls opposite to the pressed-contact wall with clearance is detachably mounted to a mounting portion. CONSTITUTION:An opening 4b of a supply path 4 in a connection tool D is connected to a cleaning fluid vessel, and after an opening 5b of a drain path 5 is connected to an absorbing device, an endscope B is inserted into the lumen of a patient to observe, examine, and diagnose lesion. When mucous or blood is adhered to the tip lens of a shaft C and the visual range becomes poor, a cleaning fluid is supplied from the supply path 4 through a pore path 10 of a cleaning tube E to clean the tip lens. Waste fluid after cleaning is absorbed and drained from the drain path 5 through a pore path 10'. The cleaning tube E is structured in such a manner that a portion 7 to be mounted which is composed of a pressed-contact inner wall 7b in securely contact with the outer circumference of the shaft C and multiple pore inner walls 7c opposite to the pressed-contact wall with clearance is detachably mounted to a mounting portion 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable tube for cleaning a tip lens of an endoscope rod portion for observing the inside of a body cavity or hollow organ in the body.

[0002]

2. Description of the Related Art As a conventional technique of this kind, as described in U.S. Pat. Nos. 4,517,962 and 4,881,523, a tubular portion of an endoscope is inserted into a hollow portion of a cylindrical body so that a distal end opening portion of the endoscope is opened. There is one that is installed according to the tip lens part of the endoscope and communicates with the switching valve mechanism provided at the base end as the cleaning liquid supply and suction discharge passages through the gap between the outer circumference of the tubular part of the endoscope and the inner peripheral wall of the cylinder. .

[0003]

The above-mentioned endoscope water supply / drainage instrument for cleaning the endoscope has a problem that mucus or blood adheres to the distal lens portion of the endoscope to obstruct the field of vision when observing a body cavity or the like. The cleaning liquid is supplied to the lens part to wash it, and the cleaning liquid is discharged, but according to the above conventional technology, mucus and blood mixed in the drained liquid after cleaning is sucked and discharged from the cylinder. Since it is discharged through the switching valve mechanism of the passage or the base, it remains attached to these and cannot be completely wiped off even by the disinfection treatment. This means that there is a high possibility of hepatitis B and AIDS infection when used in other patients even after the disinfection treatment, and this is a problem for epidemics.

An object of the present invention is to provide a tube which is used for cleaning a tip lens of a rod-shaped portion of an endoscope and is characterized by being disposable.

[0005]

A disposable tube for cleaning the distal end lens of an endoscope rod-shaped portion for achieving the above object comprises a portion to be attached to the endoscope rod-shaped portion, and a supply passage communicating with a cleaning liquid container. It is composed of a mounting portion to a connecting tool having a discharge path communicating with a suction machine for suction and discharge, and an inner peripheral wall surface of the mounted portion is expanded by forcibly inserting the endoscope rod-shaped portion at the time of mounting. As a result, the pinching inner wall surface portion that closely adheres to the outer peripheral surface of the rod-shaped portion to form a tight contact band and the inner wall surface portion of at least two gaps that form the gap passages that become the cleaning liquid passages separated by the close contact body are alternately formed. It is characterized in that both inner wall surfaces extend from the tip to the base.

[0006]

[Function] After connecting the opening of the supply passage provided in the connector to the cleaning liquid container and the discharge passage to the aspirator, the endoscope is inserted into the inner cavity of the body and the affected area is observed from the finder for inspection. It is used for diagnosis, and when the mucous membrane in the body or blood adheres to the tip lens during observation and obstructs the field of view, water is supplied from the washing liquid container to the tip through the supply passage of the connector and the gap passage of the pipe. The lens is washed, and the dirty water after washing is sucked and discharged through the gap passage and the discharge passage that connect to the suction device, and after the inspection and diagnosis, the disposable pipe is pulled out from the rod-shaped portion and discarded by incineration or the like.

[0007]

According to the disposable cleaning tube of the present invention, a gap passage for supplying and a gap passage for the isolated cleaning liquid are formed by simply inserting the endoscope into the rod portion of the endoscope. Since it is worn in close contact with the body part, it has the same thickness as the rod-shaped part, so it is not only easy to insert into the internal cavity of the body, but it can be inserted and removed so that it can be removed after use and discarded. It is hygienic and suitable for epidemics.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a disposable tube for cleaning the distal end lens of an endoscope rod-shaped part according to the present invention. FIG. 1 is an overall view of a cleaning device using this tube, and FIG. Fig. 3 is a longitudinal sectional view of the tip portion, Fig. 4 is a sectional view taken along line XX of Fig. 1, Fig. 5 is a front view of the tip portion, Fig. 6 is an overall view of a disposable tube for cleaning, and Fig. 7 is In the left side view of FIG. 6,
It will be explained based on. Reference numeral A in the figure indicates a tip lens cleaning device for an endoscope rod-shaped portion. This cleaning device A includes a cleaning liquid supply / discharge connector D fitted to a base portion of the rod-shaped portion C of an endoscope B, and a remaining portion. The disposable tube E for cleaning is attached to the rod-shaped portion C, reference numeral C'denotes a tip lens disposed at the tip of the rod-shaped portion C, B1 indicates a finder portion, and B2 indicates an optical fiber connection portion.

The connector D for supplying / discharging the cleaning liquid is provided with a fitting portion 1 for fitting in a base portion of the rod-shaped portion C of the endoscope B at the base end thereof, and is connected to the fitting portion 1 so as to communicate with the rod-shaped portion C. Is provided with an insertion hole 2 in contact with the outer peripheral surface of the fitting, and a rubber ring 2'is provided at the boundary between the fitting portion 1 and the insertion hole 2. Further, the rubber ring 2'is in contact with the insertion hole 2 and supplied along the insertion hole 2. A passage 4 and a discharge passage 5 are provided so that the tapered surface 3 formed at the tip of one end of each supply passage 4 and discharge passage 5 has openings 4a and 5a, and the outer peripheral surface 6 at the other end has openings 4b and 5b. The opening 4b of the supply path 4 is connected to the cleaning liquid container G, and the opening 5b of the discharge path 5 is connected to the suction device H for suction and discharge.

The cleaning disposable pipe E is made of polypropylene or vinyl chloride, is made of an elastic material having a certain degree of original shape restoring force, and has a tip having substantially the same shape as the tip shape of the rod-shaped portion C. And a mounting portion 8 for the connector D provided at the base end. The mounted portion 7 has an oval cross section, and the rod-shaped portion C is formed on the inner peripheral wall surface 7a.
The inner peripheral wall surfaces 7b and 7b closely contacting the outer peripheral surface of the rod and the inner wall surface portions 7c and 7c having a gap with the outer peripheral surface of the rod-shaped portion C are alternately provided, and the mounting portion 8 has the same sectional shape as that of the mounted portion 7. And an expanded inner peripheral surface 8a that is in close contact with the tapered surface 3 and the outer peripheral surface 6 of the connector D.
When the rod-shaped portion C of the endoscope B is strongly inserted and covered, the clamping inner wall surface portions 7b, 7b are expanded by the outer peripheral surface of the rod-shaped portion C against the original shape restoring force of the material and adhere to the outer peripheral surface. As a result, the confining pressure inner wall surface portions 7b, 7 from the distal end to the mounting portion 8 at the proximal end.
Two gap passages 10 and 10 'in which the gap inner peripheral surfaces 7c and 7c are separated by the contact bands 9 and 9 between b and the outer peripheral surface of the rod-shaped portion C.
One of the gap passages 10, 10 is communicated with the supply passage 4 through the opening 4a provided in the tapered surface 3 of the connector D, and the other passage is formed through the opening 5a of the tapered surface 3 and the discharge passage. It communicates with 5.

It should be noted that the portion to be covered 7 of the disposable pipe E for cleaning is attached.
Is not only oval in cross section, but is also an elliptical shape, a rhombus, a triangle, or the like.
The shape is not limited as long as it is provided with c and 7c, and the mounting portion 8 may be a perfect circle as long as the expanded inner peripheral surface 8a is in close contact with the tapered surface 3 and the outer peripheral surface 6 of the connector D.

In this embodiment, the insertion hole 2 of the connector D is fitted into the base portion of the rod-shaped portion C of the endoscope B, and the rubber ring 2'is closely fitted to the outer peripheral surface of the rod-shaped portion C. Then, the remaining rod-shaped portion C is inserted from the mounting portion 8 provided in the disposable pipe E for cleaning, and the expanded inner peripheral surface 8a of the mounting portion 8 is connected to the connecting tool D.
The taper surface 3 and outer peripheral surface 6 of
Each of the gap passages 10 and 10 'formed by the pressure inner wall surface portions 7b and 7b and the gap inner wall surface portions 7c and 7c.
Alternatively, it is connected to the discharge passage 5 and the tip of the attached portion 7a is attached to match the tip lens C ′ surface of the rod portion C, and the opening 4b of the supply passage 4 provided on the outer peripheral surface 6 of the connector D is washed with the cleaning liquid. After communicating with the container G and the discharge path 5b to the suction device H, the endoscope B is inserted into the inner cavity of the body to view the affected area with the finder B1.
From the cleaning liquid container G to the supply path 4 of the connector D, the pipe for diagnosing and inspecting and diagnosing E
Water is supplied from the tip of the pipe E through the one gap passage 10 to wash the tip lens C ', and the cleaned wastewater is sucked and discharged through the other gap passage 10' for connecting to the suction device H and the discharge passage 5 for inspection. ,
After the diagnosis, the disposable pipe E is pulled out from the rod-shaped portion C and discarded by incineration or the like.

In the disposable pipe for cleaning in this embodiment, only the rod-shaped portion of the endoscope is forcibly inserted and covered, and a gap passage for supplying the cleaning liquid and a gap passage for discharging the cleaning liquid are formed in the attached portion. In addition, since the attached part is attached in close contact with the rod-shaped part, it has the same thickness as the rod-shaped part, so it is not only easy to insert into the internal lumen of the body, but also used because it can be inserted and removed. It is sanitary because the disposable pipe can be removed and discarded later, and the cleaning liquid can be supplied and discharged through different paths together with the disposable pipe for cleaning, the supply and discharge path of the connection tool, the cleaning liquid container, and the suction device. The cleaning liquid does not come into contact with the outside air when supplied, and is suitable for epidemics.

[Brief description of drawings]

FIG. 1 is an overall view of a cleaning device using a disposable tube.

FIG. 2 is a vertical cross-sectional view of a connection tool portion.

FIG. 3 is a vertical cross-sectional view of a tip portion.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is a front view of a tip portion.

FIG. 6 is an overall view of a disposable tube for cleaning.

FIG. 7 is a left side view of FIG.

[Explanation of symbols]

B endoscope C bar C'tip lens D connection tool E Disposable tube for cleaning G cleaning liquid container H suction machine 4 supply routes 4b opening 5 discharge paths 5b opening 7b Clamping inner wall surface 7c Wall surface inside the gap 8 mounting part 10 Gap

Claims (3)

(57) [Claims] 1. An inner peripheral wall surface of a portion to be attached to an endoscope rod-shaped portion,
When the endoscope rod-shaped portion is expanded when it is attached, the clamping inner wall surface portion that is in close contact with the outer peripheral surface of the rod-shaped portion to form a close contact band, and the cleaning liquid path that is separated by this close contact body. Disposable tube for cleaning the tip lens of an endoscope rod-shaped portion, characterized in that it is provided with at least two gap inner wall surface portions in which gap paths are formed alternately, and both inner wall surface portions extend from the tip to the base end. . 2. The mounting part to a connector having a portion to be attached to an endoscope rod-shaped portion, a supply passage communicating with a cleaning liquid container, and a discharge passage communicating with a suction machine for suction and discharge. The disposable tube for cleaning the tip lens of the endoscope rod-shaped part according to 1. 3. The disposable tube for cleaning the tip lens of the endoscope rod-shaped portion according to claim 1, wherein the disposable tube is made of an elastic material having an oval cross section.