JP3758770B2 - Endoscope - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an endoscope provided with a plurality of forceps channels.
[0002]
[Prior art]
When a plurality of forceps channels for inserting treatment instruments are provided in one endoscope, there is no problem as long as the thickness (inner diameter) of the forceps channels is the same. There is a risk that the treatment tool may be damaged by mistake.
[0003]
Therefore, conventionally, an index having a different color is provided in the vicinity of the entrances of a plurality of forceps channels having different thicknesses, and the size of the forceps channel is determined based on the color of the index.
[0004]
[Problems to be solved by the invention]
However, since the interior of the endoscopic examination room is generally dim, it may be difficult to determine the color of the index. Also, if you are unfamiliar with the device, you may not know which color means the thickness of the forceps channel. As a result, the operator may be frustrated or the treatment tool may be mistakenly selected for the forceps channel, resulting in damage to the treatment tool.
[0005]
Accordingly, an object of the present invention is to provide an endoscope in which anyone can easily and accurately determine the thickness of a plurality of forceps channels.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the endoscope of the present invention is an endoscope in which a plurality of forceps channels having different inner diameters are provided, and an inner diameter of each forceps channel is provided near the entrance of the plurality of forceps channels. Indices of different sizes are provided corresponding to the size of the. Note that the color of the index may be different.
[0007]
Further, the endoscope of the present invention is an endoscope provided with a plurality of forceps channels having different inner diameters, and is formed of numerals indicating the inner diameters of the forceps channels in the vicinity of the entrances of the plurality of forceps channels. It is characterized by providing a designated index.
[0008]
In the endoscope of the present invention, in the endoscope provided with a plurality of forceps channels having different inner diameter dimensions, a symbol for displaying the size of the inner diameter dimension of each forceps channel in the vicinity of the entrance of the plurality of forceps channels. It is characterized by providing an index formed by
[0009]
A switching operation member for selectively connecting each forceps channel to the suction device may be provided, and the index may also serve as an index for indicating a switching state by the switching operation member.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
In FIG. 4, a suction operation valve 3 and an air / water supply operation valve 4 are arranged side by side on the upper front part of the grip part 2 of the operation part 1 of the endoscope, and a bending operation knob 5 is arranged on the right side part. Has been.
[0011]
Reference numeral 8 denotes a flexible insertion portion, in which two forceps channels, a forceps channel 11 having a large inner diameter and a forceps channel 12 having a small inner diameter, are inserted and arranged to a distal end portion (not shown).
[0012]
In the connecting portion 7 between the insertion portion 8 and the operation portion 1, two forceps insertion ports 9 and 10 for inserting treatment tools such as forceps are formed so as to protrude side by side and close to each other. The two forceps channels 11 and 12 are connected in communication. Reference numerals 9a and 10a denote rubber forceps stoppers attached to the forceps insertion openings 9 and 10, respectively.
[0013]
Reference numeral 13 denotes a suction conduit switching mechanism for selectively communicating one or both of the two forceps channels 11 and 12 with a suction device (not shown), which is directly below the forceps insertion ports 9 and 10. Are integrally provided. An operation knob 14 for performing a switching operation of the suction pipe switching mechanism 13 is rotatably attached to the front surface.
[0014]
FIG. 5 shows the structure in the suction pipe switching mechanism 13, and a switching valve 21 connected to the operation knob 14 is rotatably fitted in a pedestal 22, and the central shaft portion is a suction shaft. The suction communication hole 23 communicates with the operation valve 3.
[0015]
The pedestal 22 is formed with forceps insertion passages 25 and 26 that straightly connect the forceps insertion ports 9 and 10 and the forceps channels 11 and 12, and the switching valve 21 and the forceps insertion passages 25 and 26 are connected to each other. Communication passages 28 and 29 are formed between them.
[0016]
As a result, by rotating the switching valve 21 with the operation knob 14, the communication state between the suction communication hole 23 and the forceps insertion passages 25 and 26 (that is, between the suction operation valve 3 and the forceps channels 11 and 12). (Communication state) can be switched.
[0017]
The switching valve 21 has two fan-like symmetrical cutouts, and in the state shown in FIG. 5, the two forceps channels 11 and 12 are both in communication with the suction operation valve 3. If the switching valve 21 is rotated, only one of the forceps channels 11 and 12 can be communicated with the suction operation valve 3.
[0018]
Returning to FIG. 4, the forceps channels 11 and 12 through which the two forceps insertion ports 9 and 10 communicate with each other are provided on the surface of the exterior cover between the forceps insertion ports 9 and 10 and the operation knob 14 that are disposed in proximity to each other. An indicator 30 that displays the size of the inner diameter is arranged so that it can be seen from the outside.
[0019]
FIG. 1 shows only that portion in an enlarged manner, and a forceps insertion port 9 side leading to a forceps channel 11 having a large inner diameter is marked with a circular indicator 30a having a large diameter, and forceps leading to a forceps channel 12 having a small inner diameter. A circular index 30b having a small diameter is marked on the insertion port 12 side.
[0020]
Therefore, when inserting the treatment tool into the forceps insertion ports 9 and 10, if the index 30 is viewed at a glance, which of the two forceps insertion ports 9 and 10 communicates with the forceps channel 11 having a larger inner diameter, and which is the forceps channel having a smaller inner diameter. 12 can be immediately and definitely determined.
[0021]
In this index 30, large and small indices 30a and 30b are arranged one by one at an intermediate position between the forceps insertion openings 9 and 10, and the large and small indices 30a and 30b are disposed at positions away from both sides. Has been.
[0022]
As a result, as shown in FIG. 1, when the operation knob 14 faces the two large and small indicators 30a and 30b, the large and small forceps channels 11 and 12 communicate with the suction operation valve 3, Suction can be performed simultaneously through both forceps channels 11 and 12.
[0023]
As shown in FIG. 2, when the operation knob 14 faces the large index 30 a on the left end, the forceps channel 11 having a large inner diameter communicates with the suction operation valve 3, and suction is performed through the forceps channel 11. It can be carried out.
[0024]
As shown in FIG. 3, when the operation knob 14 faces the small index 30 b at the right end, the forceps channel 12 having a small inner diameter communicates with the suction operation valve 3, and suction is performed through the forceps channel 12. It can be carried out.
[0025]
FIGS. 6, 7 and 8 show a second embodiment of the present invention. The index 30 is the same as that of the first embodiment, and the color is different between the large index 30a and the small index 30b. It is a thing. In this way, the difference between the large index 30a and the small index 30b can be determined more clearly.
[0026]
9, FIG. 10 and FIG. 11 show the third embodiment of the present invention. As the index 30, a number indicating the inner diameter dimension of the forceps channel itself is set at the same position as the index of the first embodiment. It is arranged.
[0027]
In this embodiment, since the inner diameter dimensions of the two forceps channels 11 and 12 are 4 mm and 3 mm, they are indicated by numerals “4” and “3”. When the inner diameter dimensions of the forceps channels 11 and 12 are, for example, 3.8 mm and 2.8 mm, the numbers “3.8” and “2.8” may be displayed.
[0028]
FIGS. 12, 13 and 14 show a fourth embodiment of the present invention. As an index 30, a sign of “L” as meaning “Large” is provided on the side of the forceps channel 11 having a large inner diameter. In addition, on the side of the forceps channel 11 having a small inner diameter, the symbol “S” as the meaning of “Small” is arranged at the same position as the index of the first embodiment.
[0029]
Thus, even if numbers and symbols having clear meaning are used as the index 30, if the index 30 is viewed at a glance, the thickness of the forceps channels 11 and 12 can be definitely determined at a glance.
[0030]
In addition, this invention is not limited to the said embodiment, For example, it can also apply to the endoscope provided with three or more forceps channels.
[0031]
【The invention's effect】
According to the present invention, an indicator having a different size is provided corresponding to the size of the inner diameter of each of the plurality of forceps channels, or an indicator formed by a number indicating the inner diameter of each forceps channel is provided, or Endoscopy is possible because anyone can easily and accurately determine the thickness of a plurality of forceps channels by providing an indicator formed with a symbol that indicates the size of the inner diameter of the forceps channel. The operator can perform the examination without being frustrated, and can prevent damage due to erroneous insertion of the treatment instrument.
[Brief description of the drawings]
FIG. 1 is an external view of an index portion according to a first embodiment of the present invention.
FIG. 2 is an external view of an index portion according to the first embodiment of the present invention.
FIG. 3 is an external view of an index portion according to the first embodiment of the present invention.
FIG. 4 is an external view of the vicinity of an operation unit of the endoscope according to the first embodiment of the present invention.
FIG. 5 is a cross-sectional view of a suction line switching mechanism portion according to the first embodiment of the present invention.
FIG. 6 is an external view of an index portion according to a second embodiment of the present invention.
FIG. 7 is an external view of an index portion according to the second embodiment of the present invention.
FIG. 8 is an external view of an index portion according to a second embodiment of the present invention.
FIG. 9 is an external view of an index portion according to a third embodiment of the present invention.
FIG. 10 is an external view of an index portion according to a third embodiment of the present invention.
FIG. 11 is an external view of an index portion according to a third embodiment of the present invention.
FIG. 12 is an external view of an index portion according to a fourth embodiment of the present invention.
FIG. 13 is an external view of an index portion according to a fourth embodiment of the present invention.
FIG. 14 is an external view of an index portion according to a fourth embodiment of the present invention.
[Explanation of symbols]
9, 10 Forceps insertion slot 11, 12 Forceps channel 21 Switching valve 23 Suction communication hole 30 Index 14 Operation knob

Claims (1)

Rutotomoni the inner diameter is provided two different forceps channel in an endoscope switching operation member for connecting selectively to the suction device the respective forceps channel is provided,
The circular indication of different large and small two sizes corresponding to two forceps channels of the size of the different inner diameters is provided,
Of the two forceps channels, only the larger one of the two large and small circular indicators is provided near the entrance of the forceps channel having the larger inner diameter, and the smaller indicator is provided near the entrance of the forceps channel having the smaller inner diameter. And the two large and small circular indicators are arranged side by side in the middle part of the entrance of the two forceps channels,
In a state where the switching operation member is directed toward a large circular indicator provided near the entrance of the forceps channel having a large inner diameter, only the forceps channel having a large inner diameter is connected to the suction device, and the switching operation member is In the state of being directed toward the small circular indicator provided near the entrance of the forceps channel having the small inner diameter, only the forceps channel having the small inner diameter is connected to the suction device, and the switching operation member is the two forceps channels. The two forceps channels are both connected to the suction device in a state in which the two large and small circular indicators at the middle part of the entrance are directed side by side. Endoscope.

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