JP2005211453A - Endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an endoscope capable of facilitating a technique by suppressing water or body fluid or the like stuck to a treating instrument from sticking to an operator or the like or dripping to a floor and surroundings at the time of removing the treating instrument from a forceps port. <P>SOLUTION: The endoscope 1 comprises: a forceps channel 7 communicating between the insides of an insertion part 2 and an operation part 3, whose tip is opened to the tip of the insertion part 2 and base end is connected to the forceps port 5 disposed at the operation part 3, and the inside of which the treating instrument 6 can be inserted into; and a suction pipeline 8 provided with an opening end 8A near the forceps port 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an endoscope.

Conventionally, while inserting a flexible insertion portion of an endoscope into a body cavity and observing an affected part, the forceps channel provided in the endoscope insertion portion is inserted from a forceps plug attached to a forceps opening. There are known treatment tools such as grasping forceps for performing various treatments (see, for example, Patent Document 1).
JP 11-76244 A (FIG. 1)

However, in the state where the conventional treatment tool is inserted into the forceps channel, when the body fluid such as water or blood in the body is sucked through the forceps channel, the forceps channel is wet with the body fluid. Liquids such as water and body fluid may accumulate between coiled windings that are the outer peripheral surface of the insertion portion. For this reason, there is a problem that the liquid may spill outside the endoscope when the forceps plug is removed, and the procedure becomes complicated due to this processing.
The present invention has been made in view of the above circumstances, and when removing the treatment tool from the forceps opening, water, body fluid, etc. adhering to the treatment tool may adhere to the surgeon or the like and hang down on the floor or surroundings. An object of the present invention is to provide an endoscope capable of suppressing the above-described problems and facilitating the procedure.

The present invention employs the following means in order to solve the above problems.
An endoscope according to the present invention communicates with the inside of an insertion portion and an operation portion, and is connected to a forceps port having a distal end opened at the distal end of the insertion portion and a proximal end disposed in the operation portion, and is treated inside. A forceps channel through which a tool can be inserted; and a suction conduit having an open end in the vicinity of the forceps opening.
This endoscope can remove water, body fluid, etc. adhering to the outer peripheral surface of the treatment tool inserted into the forceps channel from the treatment tool and suck it from the vicinity of the forceps opening to the suction line, and treat these by suction. The treatment tool can be removed after removal from the surrounding area.

  The endoscope according to the present invention is the endoscope, wherein the treatment instrument is provided so as to be able to pass therethrough, and an insertion path in which one end is engageable with the forceps opening and the other end is opened, One end is branched from the other end side of the insertion passage, and the other end is connected to the open end of the suction conduit, and a plug portion having either one of the suction conduit or the forceps channel is provided. And a switching unit that can communicate with a suction source that can select and suck the inside.

  In this endoscope, one end of the insertion path is engaged with the forceps port, the other end of the communication path is connected to the opening end of the suction conduit, a stopper is attached, and the switching unit is operated to perform suction. When the pipe line and the suction source are communicated with each other, a flow path connecting from the other end of the insertion passage to the suction source can be formed. By driving the suction source in this state, air is sucked into the insertion passage from the other end of the insertion passage, and a flow of air from the communication passage to the suction source through the suction conduit can be formed. Therefore, by arranging the treatment tool in this flow, water, body fluid, etc. attached to the treatment tool in the insertion passage by the air flow can be peeled off from the treatment tool and removed from the circumference of the treatment tool.

  In addition, the endoscope according to the present invention is the endoscope, and includes a first valve portion that is disposed on the one end side of the insertion passage and through which the treatment instrument can pass, and the other end of the insertion passage. A second valve portion that is arranged on the side and through which the treatment instrument can pass, and a communication hole that communicates the insertion passage between the first valve portion and the second valve portion and the outside of the plug portion The communication passage is branched from the insertion passage between the first valve portion and the second valve portion.

  Since this endoscope has the above-described configuration, one end of the insertion passage is engaged with the forceps opening, the plug portion is attached to the forceps opening, and the opening end of the communication passage and the opening end of the suction conduit are connected. When connecting and operating the switching unit to connect the suction line and the suction source, a flow path connected to the suction source is formed from the communication hole disposed between the first valve unit and the second valve unit. can do. By driving the suction source in this state, it is possible to form a flow of air that is sucked from the communication hole and crosses the insertion path toward the communication path. Therefore, by disposing the treatment tool in the flow, water, body fluid, and the like attached to the periphery of the treatment tool can be peeled off from the periphery of the treatment tool and removed from the periphery of the treatment tool.

  According to the present invention, when removing the treatment tool from the forceps opening, it is possible to prevent water or body fluid from dripping from the periphery of the treatment tool to the floor or the surroundings, or body fluid or the like from adhering to the operator. Can be facilitated.

A first embodiment according to the present invention will be described with reference to FIGS. 1 and 2.
The endoscope 1 according to the present embodiment communicates the inside of the insertion portion 2 and the operation portion 3 and is connected to a forceps port 5 whose distal end is opened at the distal end of the insertion portion 2 and whose proximal end is disposed in the operation portion 3. A forceps channel 7 through which the treatment instrument 6 can be inserted is provided, and a suction conduit 8 having an open end 8A in the vicinity of the forceps opening 5 is provided.

In the forceps port 5, the treatment tool 6 is provided so as to be able to pass therethrough, one end 10 </ b> A is engageable with the forceps port 5, and the other end 10 </ b> B is opened, and one end 11 </ b> A is the other end 10 </ b> B side of the insertion path 10. A forceps plug (plug portion) 12 having a communicating path 11 that is branched from the other end 11B and communicates with the open end 8A of the suction pipe 8 is disposed.
In the middle of the insertion path 10, a treatment tool 6 can be inserted, and a valve portion 13 that can seal the insertion path 10 and the outside of the forceps plug 12 is disposed. The communication path 11 is branched from the valve portion 13 and the other end 10 </ b> B of the insertion path 10.

The operation unit 3 can be connected to a suction source 14 including a pump that can select either the suction pipe 8 or the forceps channel 7 to suck the inside, and has one end connected to the suction source 14 and the other end. A suction passage 15 disposed with an opening end 15 </ b> A in the operation portion 3 and a suction switching valve (switching portion) 16 inserted in the suction passage 15 are disposed.
The forceps channel 7 is provided with a branching portion 7 </ b> A that is branched from the middle of the operation unit 3 toward the forceps opening 5. The proximal end 8B of the suction conduit 8 and the proximal end 7B of the forceps channel 7 are connected to the suction passage 15 so as to open.

  The suction switching valve 16 is slidably inserted into the suction passage 15 at one end side, a piston 18 having a button portion 17 disposed at the other end side, and formed so that the piston 18 can pass therethrough. The connecting portion 20 connected to the end 15A, the support member 21 that can be penetrated by the piston 18 and detachably disposed on the connecting portion 20, and the button portion 17 and the supporting member 21 are arranged to be extendable and contractible. And a spring 22.

The piston 18 has a hollow portion 25 formed of a bottomed hole 23 whose lower end is opened and a base end 8B of the suction pipe 8 or a vent hole 26 capable of communicating the base end of the forceps channel 7 and the hollow portion 25. And are formed.
The support member 21 is formed with a positioning portion 27 for locking the button portion 17.
The vent hole 26 can be communicated with the proximal end 8B of the suction pipe 8 when the spring 22 is restored in the initial state and the spring 22 is pushed by pressing the button portion 17 until the button portion 17 is locked to the positioning portion 27. When the piston 18 is moved in the suction passage 15 in the direction of contraction, the proximal end 7B of the forceps channel 7 is disposed at a position where it can communicate.

Next, an operation method, an operation and an effect of the endoscope 1 according to the present embodiment will be described.
First, one end 10A of the insertion path 10 of the forceps plug 12 is engaged with the forceps port 5, and the other end 11B of the communication path 11 is connected to the open end 8A of the suction duct 8, so that the forceps plug 12 is connected to the forceps. Attach to mouth 5.
After mounting, the suction source 14 is driven to enter a standby state.
At this time, since the vent hole 26 of the piston 18 is disposed at a position communicating with the base end 8B of the suction pipe 8, the other end 10B of the insertion path 10 of the forceps plug 12, the communication path 11, and the suction pipe The passage 8, the hollow portion 25 of the piston 18, and the suction passage 15 communicate with each other as a flow path, and outside air is sucked and air flows through the flow path.
And the insertion part 2 is inserted in a body cavity.

  During the treatment with the treatment instrument 6, a syringe (not shown) filled with water or physiological saline is attached to the forceps opening 5 to feed the water through the forceps channel 7 in order to clean the observation site. In order to make the lesion at the observation site easy to see, a syringe (not shown) filled with a liquid dye such as indigo carmine is attached to the forceps port 5 and further fed through the forceps channel 7.

Next, the button portion 17 is pushed in until it is locked to the positioning portion 27, and the piston 18 is moved to suck and discharge water, body fluid, pigment and other liquids accumulated in the body cavity.
At this time, the arrangement position of the vent hole 26 moves from the communication position with the suction conduit 8 to the communication position with the forceps channel 7 so that the forceps channel 7 and the suction passage 15 are communicated.
Thus, water or other liquid is sucked from the forceps channel 7 into the suction passage 15.
Then, the treatment tool 6 is inserted into the forceps channel 7 from the other end 10 </ b> B of the insertion passage 10 of the forceps plug 12. However, since water, other liquids, and the like adhere to the inner surface of the forceps channel 7, water, body fluid, and the like adhere to the outer peripheral surface of the treatment tool 6 when the treatment tool 6 is inserted.

When the treatment is finished and the treatment tool 6 is removed from the forceps channel 7, the button portion 17 is released while the suction source 14 is in the drive state, and the standby state is set.
At this time, the spring 22 is restored, the piston 18 moves away from the positioning portion 27 and moves in the suction passage 15, and the position of the vent hole 26 moves from the communication position with the forceps channel 7 to the communication position with the suction pipe 8. To do. At this time, the suction pipe 8 and the suction passage 15 are communicated with each other in the same state as the standby state described above, and a flow path connecting the other end 10B of the insertion passage 10 and the suction source 14 is formed, so that the outside air is again supplied. It flows in the suction passage 15.
At this time, since the air flows along the treatment instrument 6 disposed in the insertion path 10 between the valve portion 13 and the other end 10B of the insertion path 10, the air flows around the treatment instrument 6. The adhered water or other liquid is peeled off and removed from the treatment instrument 6, and the removed water or other liquid is sucked from the communication path 11 into the suction pipe 8.
In this way, the treatment tool 6 can be removed from the insertion passage 10 to the outside without water or other liquid adhering to the surface.

  According to this endoscope 1, the suction line 8 from the vicinity of the forceps port 5 using the suction source 14 used for sucking water, body fluid, and the like attached to the treatment instrument 6 inserted into the forceps channel 7 is used. The treatment tool 6 can be removed after removing these by suction without impairing the operability of the endoscope 1.

Next, a second embodiment will be described with reference to FIG.
In addition, the same code | symbol is attached | subjected to the component similar to 1st Embodiment mentioned above, and description is abbreviate | omitted.
The difference between the second embodiment and the first embodiment is that the forceps plug 31 of the endoscope 30 according to the second embodiment is disposed on the one end 32A side of the insertion passage 32 so that the treatment instrument 6 can pass therethrough. A first valve portion 33, a second valve portion 35 that is disposed on the other end 32B side of the insertion passage 32 and through which the treatment instrument 6 can pass, and a first valve portion 33 and a second valve portion 35. The communication path 11 is branched from the insertion path 32 between the first valve portion 33 and the second valve portion 35. This is the point.
The second valve portion 35 can be attached to and detached from the insertion passage 32.

Next, a method of using the endoscope 30 according to the present embodiment, and actions and effects will be described.
First, the forceps plug 31 is attached to the forceps port 5 in the same manner as in the first embodiment, the suction source 14 is driven to enter a standby state, and after inserting the insertion portion 2 into the body cavity, water supply or liquid supply treatment is performed. After these are aspirated, the treatment tool 6 is inserted into the forceps channel 7 again in a standby state, and a predetermined treatment is performed.
Here, the standby state of the endoscope 30 is a state in which the suction passage 15 is communicated with the suction conduit 8, so that the first valve portion 33 and the second valve are communicated from the communication hole 36 of the forceps plug 31. A passage that is connected to the communication passage 11, the suction conduit 8, and the suction passage 15 is formed across the insertion passage 32 sandwiched between the portions 35, and air sucked from the outside flows in the passage.
At this time, the air taken in from the communication hole 36 flows across the treatment instrument 6 disposed between the first valve portion 33 and the second valve portion 35 in the insertion passage 32.

  According to this endoscope 30, it is possible to form a flow of air that is sucked from the communication hole 36 and crosses the treatment tool 6 in the insertion passage 32 toward the communication path 10. Water, body fluid, etc. adhering to the surroundings can be peeled off from the periphery of the treatment tool and removed.

Next, a third embodiment will be described with reference to FIG.
In addition, the same code | symbol is attached | subjected to the component similar to other embodiment mentioned above, and description is abbreviate | omitted.
The difference between the third embodiment and the first embodiment is that the suction conduit 38 of the endoscope 37 according to the present embodiment is connected to the branch tube 40A of the forceps channel 40 in the vicinity of the forceps opening 5 in the operation section 39. The point is that it is communicated with an open end 38A in the middle.
In addition, the branch pipe 40A of the forceps channel 40 is formed with an insertion port 42 that communicates with the outside in the operation portion 39 on the distal end side with respect to the opening end 38A of the suction pipe 38 and into which the forceps plug 41 can be inserted. The forceps plug 41 is formed with an insertion passage 45 in which the valve portion 43 is arranged in the middle.
The proximal end 38 </ b> B of the suction conduit 38 and the proximal end 40 </ b> B of the forceps channel 40 are communicated with the suction passage 15.

A method of using the endoscope 37 according to the present embodiment, and actions and effects will be described.
First, the forceps plug 41 is inserted into the insertion port 42, and after inserting the insertion portion 2 into the body cavity in a standby state, water supply or liquid supply treatment is performed. It inserts into the forceps channel 40 from the mouth 5 and performs a predetermined treatment.
At this time, in the standby state of the endoscope 37, the suction passage 15 is in communication with the suction conduit 38 through the vent hole 26, and the forceps channel 40 and the outside are connected to each other at the valve portion 43. Is sealed, a flow path is formed from the forceps opening 5 through the branch pipe 40A in the vicinity of the forceps opening 5 to the suction pipe 38 and the suction path 15, and the outside air flows through the flow path.

Accordingly, as in the first embodiment, since an air flow is formed along the treatment tool 6 disposed between the forceps port 5 and the valve portion 43, this air treats the outer periphery of the treatment tool 6. When flowing along the instrument 6, the liquid or the like attached around the treatment instrument 6 is removed into the air flow and sucked into the suction line 38.
In this way, the treatment tool 6 can be removed from the insertion passage 45 to the outside without water or body fluid adhering to the surface.
According to this endoscope 37, it is possible to obtain the same operations and effects as in the first embodiment.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above embodiment, the communication between the vent hole 26 and the proximal end 40B of the forceps channel 40 or the proximal end 38B of the suction conduit 38 is selected by the spring 22; An elastic member may be used.

It is sectional drawing which shows the side surface of the endoscope which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the forceps stopper of the endoscope which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the forceps stopper of the endoscope which concerns on the 2nd Embodiment of this invention. It is sectional drawing which shows the side surface of the endoscope which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

1, 30, 37 Endoscope 2 Insertion section 3, 39 Operation section 5 Forceps port 6 Treatment tool 7, 40 Forceps channel 8, 38 Suction duct 10, 32, 45 Insertion path 11 Communication path 12, 31 Forceps plug (plug) Part)
14 Suction source 16 Suction switching valve (switching unit)
33 1st valve part 35 2nd valve part 36 Communication hole

Claims (3)

A forceps channel that allows the inside of the insertion portion and the operation portion to communicate with each other, the distal end is connected to the forceps opening that is opened at the distal end of the insertion portion and the proximal end is disposed in the operation portion, and the treatment tool can be inserted therein;
An endoscope comprising a suction conduit having an open end in the vicinity of the forceps opening. The treatment instrument is provided so as to be able to pass therethrough, one end is engageable with the forceps opening, the other end is opened, one end is branched from the other end of the insertion passage, and the other end is the suction tube A plug portion having a communication path capable of communicating with the open end of the path;
The endoscope according to claim 1, further comprising: a switching unit configured to select either one of the suction channel or the forceps channel and to communicate with a suction source capable of suctioning the inside. A first valve portion that is disposed on the one end side of the insertion passage and through which the treatment instrument can pass;
A second valve portion that is arranged on the other end side of the insertion passage and through which the treatment instrument can pass,
A communication hole communicating the insertion passage between the first valve portion and the second valve portion and the outside of the plug portion;
The endoscope according to claim 2, wherein the communication path is branched from the insertion path between the first valve portion and the second valve portion.

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