JP2005270293A - Treatment tool for endoscope and treatment system of endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a treatment tool for an endoscope and a treatment system of the endoscope with which an operation of insertion and removal of the treatment tool for the endoscope becomes easy and a technique can be shortened and simplified. <P>SOLUTION: The treatment system 1 of the endoscope is equipped with the flexible treatment tool 2 for the endoscope and an undermentioned endoscope 3. Wherein, the endoscope 3 has a flexible insertion section 15, an operation section 16 which is connected to a proximal end side of the insertion section 15, a first channel 17 which is formed to extend from the distal end of the insertion section 15 to the operation section 16 and can receive the treatment tool 2 for the endoscope, and a second channel 18 which is formed to be connected to the proximal end side of the first channel 17 to extend from the operation section 16 toward the distal end of the insertion section 15 and can receive a treatment tool insertion section 6 which is inserted in the first channel 17. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an endoscope treatment tool and an endoscope treatment system.

  In general, when performing a treatment of a required part in the body or an examination of a living tissue by an operation from outside the body using an endoscope, for example, a plurality of endoscopic treatment tools such as a needle knife and a grasping forceps are continuously connected. May be used. In such a case, conventionally, after the endoscope treatment tool selected through the forceps channel provided in the insertion portion of the endoscope is inserted into the body and a predetermined treatment is performed, the endoscope treatment tool is not attached. The operation such as drawing out of the body and inserting the endoscope treatment tool into the channel again was performed.

When inserting such an endoscopic treatment instrument into a channel, it is necessary to carefully insert a long endoscopic treatment instrument into a narrow channel, which is troublesome and requires a high degree of attention.
Therefore, an endoscope provided with an insertion / extraction device that automatically performs an insertion / extraction operation into a channel has been proposed (see, for example, Patent Document 1).
JP 57-117823 A (FIG. 1)

However, in the above conventional technique, it is necessary for an assistant of the endoscope treatment tool to operate the treatment tool operation unit separately from the operator. Further, since the endoscope treatment tool uses the conventional endoscope treatment tool as it is, it is necessary to assist the operation while supporting it with the hand when inserting the endoscope treatment tool into the endoscope. For this reason, it has not been possible to reduce the time and ease of sufficient procedures.
The present invention has been made in view of the above circumstances, and facilitates the insertion / extraction operation of the endoscope treatment tool, and also enables an endoscope treatment tool and endoscope that can shorten and facilitate the procedure. An object is to provide a mirror treatment system.

The present invention employs the following means in order to solve the above problems.
An endoscope treatment system according to the present invention includes a flexible endoscope treatment tool, a flexible insertion portion, an operation portion connected to a proximal end side of the insertion portion, and the insertion portion. A first channel that extends from the distal end to the operation portion and through which the endoscope treatment tool can be inserted, and communicates with the first channel and extends from the operation portion toward the distal end of the insertion portion. An endoscope having a second channel through which the endoscope treatment instrument inserted through the first channel can be inserted.

  In this endoscope treatment system, since the first channel and the second channel are communicated with each other, the proximal end side of the endoscope treatment tool is inserted from the first channel into the second channel. In this case, the distal end side of the endoscopic treatment tool can be inserted / removed from the first channel distal end, and the proximal end side of the endoscopic treatment tool is set to the first channel by pulling the endoscopic treatment instrument into the first channel. It is possible to move from the first channel to the second channel and store the endoscope treatment instrument in the second channel.

Moreover, the endoscope treatment system according to the present invention is the endoscope treatment system, characterized in that a tip of the second channel is connected in the middle of the first channel.
In this endoscope treatment system, when the distal end side of the endoscope treatment tool is immersed in the first channel, the proximal end side of the endoscope treatment tool inserted into the second channel is arranged. The first channel and the second channel can be inserted again into the first channel from the connecting portion. Therefore, it is not necessary to provide the second channel in the insertion portion on the distal end side from the connection portion, and it is possible to secure a storage place for the endoscope treatment tool without increasing the outer diameter of the insertion portion.

The endoscope treatment system according to the present invention is the endoscope treatment system, characterized in that the distal end of the second channel is opened at the distal end of the insertion portion.
In the endoscope treatment system, when the distal end side of the endoscope treatment tool is inserted into the first channel, the endoscope treatment tool is advanced and retracted to move the distal end of the endoscope treatment tool to the first position. In addition to projecting outward from the tip of one channel, the proximal end side of the endoscope treatment tool can be inserted into the second channel and projected outward from the tip of the second channel.

The endoscope treatment tool according to the present invention can be advanced and retracted in the first channel and the second channel of the endoscope provided in the endoscope treatment system according to the present invention, and has flexibility. And a treatment unit that is disposed at a distal end of the treatment tool insertion portion and receives an axial force to perform treatment.
In this endoscope treatment instrument, the treatment instrument insertion portion can be inserted into the first channel in advance and stored in the second channel, and when necessary, the treatment unit can be inserted into the treatment instrument insertion portion. A desired treatment can be performed by wearing.

  Moreover, the treatment tool for endoscopes according to the present invention is the treatment tool for endoscopes, and the first channel and the second of the endoscope provided in the endoscope treatment system according to the present invention. A treatment instrument insertion portion that is capable of advancing and retreating in the channel of the first treatment unit, has flexibility, a first treatment unit that is disposed at one end of the treatment instrument insertion portion and receives a force in the axial direction, and the treatment And a second treatment unit that is disposed at the other end of the instrument insertion portion and receives a force in the axial direction to perform treatment.

  In this endoscope treatment instrument, the treatment instrument insertion portion is inserted in advance into the first channel and the second channel of the endoscope provided in the endoscope treatment system according to the present invention, so that the first treatment is performed. The unit can protrude from the distal end of the insertion section through the first channel, and the second treatment unit can project from the distal end of the insertion section through the second channel. Therefore, a plurality of treatments can be performed with one endoscope treatment tool.

  The endoscope treatment tool according to the present invention is the endoscope treatment tool, wherein the treatment tool insertion portion is capable of freely moving forward and backward within the sheath portion having flexibility and the sheath portion. A first transmission means arranged to transmit axial force to the first treatment unit, and a second transmission means arranged to be able to advance and retreat in the sheath portion and transmit axial force to the second treatment unit. A first operating portion that is connected to the first transmitting means at the other end side of the sheath portion and is movable in the axial direction with respect to the sheath portion, and at the one end side of the sheath portion. It is connected to the 2nd transmission means, It is provided with the 2nd operation part which can move to an axial direction to the sheath part, It is characterized by the above-mentioned.

  In this endoscope treatment tool, the first transmission unit can be moved forward and backward by operating the first operation portion relative to the sheath portion, and the first treatment unit can be operated. In addition, the second transmission means can be moved forward and backward by operating the second operating portion with respect to the sheath portion, and the second treatment unit can be operated.

  According to the present invention, it is possible to secure a storage place for an endoscopic treatment tool in the endoscope, and it is troublesome when handling the endoscopic treatment tool even if it is a long endoscopic treatment tool. Can be reduced.

A first embodiment according to the present invention will be described with reference to FIG.
An endoscope treatment system 1 according to this embodiment includes an endoscope treatment tool 2 having flexibility and an endoscope 3.
The endoscope treatment tool 2 includes a treatment unit 5 that performs treatment by receiving a force in the axial direction, and a treatment tool insertion portion 6 in which the treatment unit 5 is detachably disposed at the distal end.
The treatment instrument insertion portion 6 includes a flexible operation wire 7 that transmits an axial driving force to the treatment unit 5, a flexible sheath portion 8 that covers the operation wire 7 so as to be able to advance and retreat inside, and a sheath portion 8. And a flexible operation tube portion 10 that is connected to and covers the operation wire 7.

The treatment unit 5 is provided with a cylindrical distal end cover member 11 connected to the distal end of the sheath portion 8, and a pair that can be opened and closed at the distal end of the distal end cover member 11. Forceps pieces 12 and 13.
The proximal end side of the operation wire 7 is formed so as to protrude from the proximal end of the sheath portion 8, and further from the position separated from the proximal end of the sheath portion 8 at least by a distance necessary for the forward / backward operation of the operation wire 7. The operation tube unit 10 is covered on the side.
The sheath portion 8 and the operation tube portion 10 are integrally formed with a single wire member wound in a coil shape having substantially the same diameter.

The endoscope 3 is formed of an insertion portion 15 having flexibility, an operation portion 16 connected to the proximal end side of the insertion portion 15, and extending from the distal end of the insertion portion 15 to the operation portion 16. The first channel 17 through which the treatment instrument 2 can be inserted and the proximal end side of the first channel 17 communicate with the first channel 17 so as to extend from the operation unit 16 toward the distal end of the insertion unit 15 and are inserted into the first channel 17. Opening / closing drive for performing forward / backward movement and treatment operation of the second channel 18 through which the treatment instrument insertion portion 6 can be inserted and the first channel 17 or the endoscope treatment instrument 2 inserted in the second channel 18 Means 20.
The operation section 16 is provided with an opening 21 having a work area that is communicated in the middle of the first channel 17 so that the treatment unit 5 can be attached to the treatment instrument insertion section 6 in the first channel 17.

The opening / closing drive means 20 is provided in the first channel 17 separately from the first roller 22 for moving the sheath portion 8 in the first channel 17 in the axial direction of the first channel 17 and the first roller 22. Thus, the second roller 23 for moving the sheath portion 8 and the operation tube portion 10 back and forth in the axial direction of the first channel 17, the motor for driving the first roller 22 and the second roller 23 forward and backward, etc. The drive unit 25 and the operation unit 16 of the endoscope 3 are arranged and can be switched to operate the endoscope treatment instrument 2 in the first channel 17 in “forward”, “backward”, and “stop”. An advance / retreat switch 26 and an open / close switch 27 which is arranged adjacent to the advance / retreat switch 26 and can be switched to operate the pair of forceps pieces 12, 13 to “open” and “close” are provided.
Both the first roller 22 and the second roller 23 are provided with a pair of rollers 28A and 28B that can rotate opposite to each other, and the first roller 22 is disposed so that the sheath portion 8 can be pressed, and the first roller 22 The second roller 23 is arranged so that the sheath portion 8 and the operation tube portion 10 can be pressed against each other.

Next, the operation method, operation, and effect of the endoscope treatment system 1 and the endoscope treatment tool 2 according to the present embodiment will be described below.
First, the treatment instrument insertion portion 6 inserts the insertion portion 15 of the endoscope 3 housed in the second channel 18 into the body cavity in a state where the distal end side of the sheath portion 8 is pressed against the first roller 22 in advance. .
After the insertion, the advance / retreat switch 26 is set to “advance”, and the first roller 22 and the second roller 23 are moved at the same speed and the treatment instrument insertion portion 6 is moved to the distal end side of the first channel 17. Rotate each in the direction of rotation.

When the distal end of the treatment instrument insertion portion 6 reaches the opening 21, the advance / retreat switch 26 is temporarily switched to “stop” to stop the rotation of the first roller 22 and the second roller 23.
Then, the distal end of the treatment instrument insertion portion 6 is pulled out to the opening 21, and the treatment unit 5 is inserted into the opening 21 and attached to the treatment instrument insertion portion 6.
After the treatment instrument insertion portion 6 is returned into the first channel 17, the advance / retreat switch 26 is set to “forward” again so that the treatment instrument insertion portion 6 moves the first roller 22 and the second roller 23 to the first channel. Rotate in the direction of movement toward the tip end side of 17 respectively.

When the treatment unit 5 is moved to a position protruding a predetermined length from the tip of the first channel 17, the advance / retreat switch 26 is switched to “stop” to rotate the first roller 22 and the second roller 23. Stop.
At this time, the first roller 22 holds the sheath portion 8 and the second roller holds the operation tube portion 10.

  Next, the open / close switch 27 is set to “open” and the first roller 22 is held as it is, and the operation tube portion 10 is moved in the direction of moving the distal end direction of the first channel 17 with respect to the sheath portion 8. Only the second roller 23 is rotated. At this time, the operation wire 7 connected to the operation tube portion 10 moves forward with respect to the sheath portion 8. The axial force at this time is transmitted to the pair of forceps pieces 12 and 13 to open them.

After positioning the pair of forceps pieces 12 and 13 to a foreign object and catching them, the open / close switch 27 is switched to “closed”.
At this time, only the second roller 23 rotates in a direction to move the operation tube portion 10 in the proximal direction of the first channel 17 with respect to the sheath portion 8, and the operation wire 7 connected to the operation tube portion 10 is moved. The inside of the sheath part 8 is retracted. The axial force at this time is transmitted to the pair of forceps pieces 12 and 13 to close them and grip foreign matter or the like.

Then, the insertion portion 15 of the endoscope 3 is removed from the body cavity and the foreign matter is collected.
After the recovery, the advancing / retreating switch 26 is switched to “retreating”, and the first roller 22 and the second roller 23 are rotated at the same speed in the reverse direction to the forward movement, and the sheath portion is pressed by the first roller 22. 8 and the sheath portion 8 and the operation tube portion 10 that are press-contacted by the second roller 23 are moved to the proximal end side of the first channel 17. Since the rotation speeds at this time are the same, the treatment instrument insertion portion 6 moves to the proximal end side of the first channel 17.
At this time, the proximal end side of the operation tube portion 10 is inserted from the first channel 17 into the second channel 18 and stored.

According to the endoscope treatment system 1 and the endoscope treatment tool 2, since the first channel 17 and the second channel 18 are communicated with each other, the distal end side of the endoscope treatment tool 2 is placed on the first side. When the proximal end side of the endoscopic treatment instrument 2 is inserted into the second channel 18 from the first channel 17 so as to be inserted and removed from the distal end of the first channel 17, the endoscopic treatment instrument 2 is moved to the first channel 17. The proximal end side of the endoscope treatment tool 2 is moved from the first channel 17 to the second channel 18 by being pulled into the channel 17, and the endoscope treatment tool 2 is accommodated in the second channel 18. be able to.
In addition, according to the endoscope treatment instrument 2, the treatment instrument insertion portion 6 can be inserted into the first channel 17 and stored in the second channel 18 in advance. The treatment unit 5 can be attached to the treatment instrument insertion portion 6 to perform a predetermined treatment.

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 distal end of the second channel 32 in the endoscope 31 of the endoscope treatment system 30 according to this embodiment is in the middle of the first channel 17. It is said that it is connected to and communicated with.

  The length of the treatment instrument insertion portion 6 of the endoscope treatment instrument 2 is such that the distal end side and the proximal end side of the treatment instrument insertion portion 6 are located at the connection position A between the first channel 17 and the second channel 32. Are not in contact with each other.

  According to the endoscope treatment system 30 and the endoscope treatment tool 2, the endoscope treatment tool 2 can be inserted and removed by the same operation as in the first embodiment. When the distal end side of the instrument 2 is immersed in the first channel 17, the proximal end side of the endoscopic treatment instrument 2 inserted into the second channel 32 is moved again from the connection position A to the first channel. 17 can be inserted. Therefore, it is not necessary to provide the second channel 42 in the insertion portion 35 on the distal end side from the connection position A, and a storage place for the endoscope treatment instrument 45 is ensured without increasing the outer diameter of the insertion portion 35. be able to.

Next, a third embodiment will be described with reference to FIGS.
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 distal end of the second channel 42 opens at the distal end of the insertion portion 43 in the endoscope 41 of the endoscope treatment system 40 according to the present embodiment. The first treatment unit 48 is disposed through the first mount 47 disposed on the one end 46a of the treatment instrument insertion portion 46 and receives treatment in the axial direction. And a second treatment unit 51 that is disposed via the second mount 50 disposed on the other end 46b of the treatment instrument insertion portion 46 and receives an axial force to perform treatment. It is.

As shown in FIG. 3, the operation unit 52 of the endoscope 41 is connected to the middle of the first channel 17 and the first treatment unit 48 is attached to the treatment instrument insertion portion 46 in the first channel 17. The first opening 53 having a possible work area and the work area where the second treatment unit 51 can be attached to the treatment instrument insertion portion 46 in the second channel 42 in the middle of the second channel 42. And a second opening 55 having.
The operation unit 52 of the endoscope 41 includes an advance / retreat switch 26 that can be switched to operate the endoscope treatment instrument 45 in the first channel 17 in “forward”, “reverse”, and “stop”, and an advance / retreat switch. A first open / close switch 57 disposed adjacent to the switch 26 and switchable to “open” and “close” the pair of forceps pieces 12 and 13 in the first treatment unit 48; A second open / close switch 58 that can be switched to open and close the pair of forceps pieces 12 and 13 in the unit 51 is provided.

  As shown in FIGS. 4 and 5, the endoscope treatment instrument 45 includes a treatment instrument insertion portion 46 that is arranged with a flexible sheath portion 60 and a sheath portion 60 that can move forward and backward. A first operating wire (first transmission means) 61 that transmits axial force to the treatment unit 48 and a sheath portion 60 are arranged so as to be able to advance and retreat, and transmit axial force to the second treatment unit 51. A second operation wire (second transmission means) 62 that is connected to the first operation wire 61 on the other end 60 b side of the sheath portion 60 and is movable in the axial direction with respect to the sheath portion 60. The operation unit 63 includes a second operation unit 65 that is connected to the second operation wire 62 on the one end 60 a side of the sheath unit 60 and is movable in the axial direction with respect to the sheath unit 60.

Both the first operation unit 63 and the second operation unit 65 are formed in a coil shape and have outer diameters capable of being pressed against the first roller 22 and the second roller 23, respectively.
The sheath portion 60 has a large-diameter portion 66 disposed in the center portion and a coil-shaped first small diameter that is on the one end 60a side of the sheath portion 60 and has an outer diameter that can advance and retreat in the second operation portion 65. A second portion (not shown) having the same configuration as that of the first small-diameter portion 67, which is the outer diameter of the portion 67 and the other end 60 b of the sheath portion 60, and has an outer diameter that can advance and retreat in the first operation portion 63. As shown in FIG. 5, the first small diameter portion 67 and the large diameter portion 66 are connected via the first connection portion 68, and the second small diameter portion and the large diameter portion 66 are The first connection part 68 is connected via a second connection part (not shown) having the same configuration. In addition, the first operation wire 61 and the first operation unit 63 are connected by the first connecting unit 70, and the second operation wire 62 and the second operation unit 65 are the first connecting unit. The second connection part (not shown) having the same configuration as that of 70 is connected.
The first small-diameter portion 67 and the second small-diameter portion are respectively provided with slits 72 that allow the second connection portion and the first connection portion 68 to advance and retreat relative to the sheath portion 60, respectively.

Next, the operation method, operation and effect of the endoscope treatment system 40 and the endoscope treatment tool 45 according to the present embodiment will be described below.
First, as in the first embodiment, first, the treatment instrument insertion portion 46 inserts the insertion portion 43 of the endoscope 41 previously accommodated in the first channel 17 and the second channel 42 into the body cavity. .
After the insertion, the advance / retreat switch 26 is set to “advance”, and the first roller 22 and the second roller 23 are moved at the same speed and the treatment instrument insertion portion 46 is moved to the distal end side of the first channel 17. Rotate each in the direction of rotation.

When the first mount 47 of the treatment instrument insertion section 46 reaches the first opening 53, the advance / retreat switch 26 is temporarily switched to "stop" to stop the rotation of the first roller 22 and the second roller 23. To do.
Then, the first mount 47 is pulled out into the first opening 53, and the first treatment unit 48 is inserted into the first opening 53 and attached to the first mount 47.
After the treatment instrument insertion portion 46 is returned into the first channel 17, the advance / retreat switch 26 is set to “forward” again, and the first roller 22 and the second roller 23 are moved to the first channel by the treatment instrument insertion portion 46. Rotate in the direction of movement toward the tip end side of 17 respectively.

When the second mount 50 of the treatment instrument insertion section 46 reaches the second opening 55, the advance / retreat switch 26 is switched to "stop" to stop the rotation of the first roller 22 and the second roller 23. .
Then, the second mount 50 is pulled out to the second opening 55, the second treatment unit 51 is inserted into the second opening 55, and the treatment tool insertion portion 46 is attached to the second mount 50. Return to the second channel 42.

When the treatment by the first treatment unit 48 is performed, the advance / retreat switch 26 is again set to “forward”, and the first roller 22 and the second roller 23 are moved to the distal end side of the first channel 17 by the treatment instrument insertion portion 46. Rotate each in the direction of movement.
When the first treatment unit 48 is moved to a position protruding a predetermined length from the distal end of the first channel 17, the advance / retreat switch 26 is switched to “stop” and the first roller 22 and the second roller The rotation of the roller 23 is stopped.
At this time, the first roller 22 holds the sheath portion 60 and the second roller 23 holds the first operation portion 63.

  Next, the first opening / closing switch 57 is opened, and only the second roller 23 is rotated in the direction in which the first operating portion 63 moves to the distal end of the first channel 17 with respect to the sheath portion 60. At this time, the first operation wire 61 connected to the first operation portion 63 advances in the sheath portion 60. The axial force at this time is transmitted to the pair of forceps pieces 12 and 13 to open them.

After the pair of forceps pieces 12 and 13 are positioned on a foreign object and captured, the first open / close switch 57 is switched to “closed”.
At this time, only the second roller 23 is rotated in the direction in which the first operation portion 63 moves in the proximal direction of the first channel 17 with respect to the sheath portion 60 and is connected to the first operation portion 63. The first operation wire 61 is retracted with respect to the sheath portion 60. The axial force at this time is transmitted to the pair of forceps pieces 12 and 13 to close them and grip foreign matter or the like.

Then, the insertion portion 43 of the endoscope 41 is removed from the body cavity and the foreign matter is collected.
After the collection, the advance / retreat switch 26 is switched to “retreat”, the first roller 22 and the second roller 23 are rotated at the same speed in the opposite direction to the forward movement, and the treatment instrument insertion portion 46 is moved to the first channel 17. When the first treatment unit 48 reaches the first opening 53, the treatment instrument insertion portion 46 is stopped to collect the foreign matter.

Subsequently, treatment by the second treatment unit 51 is performed.
The advance / retreat switch 26 is set to “retreat” to rotate the first roller 22 and the second roller 23 in the direction in which the treatment instrument insertion portion 46 moves to the distal end side of the second channel 42.
When the second treatment unit 51 is moved to a position protruding a predetermined length from the distal end of the second channel 42, the advance / retreat switch 26 is switched to “stop” and the first roller 22 and the second roller The rotation of the roller 23 is stopped.
At this time, the first roller 22 holds the sheath portion 60, and the second roller holds the second operation portion 65.

  Next, the second opening / closing switch 58 is opened, and only the first roller 22 is rotated in the direction in which the second operating portion 65 moves in the distal direction of the second channel 42 with respect to the sheath portion 60. . At this time, the second operation wire 62 connected to the second operation portion 65 advances in the sheath portion 60. The axial force at this time is transmitted to the pair of forceps pieces 12 and 13 to open them.

After positioning the pair of forceps pieces 12 and 13 to a foreign object and catching them, the second open / close switch 58 is switched to “closed”.
At this time, only the first roller 22 is rotated in the direction in which the second operation portion 65 moves in the proximal direction of the second channel 42 with respect to the sheath portion 60, and is connected to the second operation portion 65. The second operation wire 62 is retracted with respect to the sheath portion 60. The axial force at this time is transmitted to the pair of forceps pieces 12 and 13 to close them and grip foreign matter or the like.

Then, the insertion portion 43 of the endoscope 41 is removed from the body cavity and the foreign matter is collected.
After the collection, the advance / retreat switch 26 is switched to “retreat”, the first roller 22 and the second roller 23 are rotated at the same speed in the reverse direction to the forward movement, and the treatment instrument insertion portion 46 is moved to the second channel 42. When the second treatment unit 51 reaches the second opening 55, the treatment instrument insertion portion 46 is stopped and recovered.

  According to the endoscope treatment system 40, when the one end 60a side of the sheath portion 60 of the endoscope treatment tool 45 is inserted into the first channel 17, the endoscope treatment tool 45 is moved to the first channel 17. By advancing and retreating in the channel 17 and the second channel 42, one end 60a of the sheath portion 60 can be protruded outward from the tip of the first channel 17, while the other end 60b side of the sheath portion 60 is made the second side. It is possible to project outward from the tip of the channel 42.

Further, according to the endoscope treatment tool 45, the treatment instrument insertion portion 46 is inserted into the first channel 17 and the second channel 42 of the endoscope 41 in advance, so that the first treatment is performed. The unit 48 can be protruded from the distal end of the insertion portion 43 via the first channel 17, and the second treatment unit 51 can be protruded from the distal end of the insertion portion 43 via the second channel 42. .
Then, the first treatment unit 48 can be operated by moving the first operation wire 61 forward and backward with respect to the sheath portion 60 with the first operation portion 63. The second treatment unit 51 can be operated by operating the second operation wire 62 with the operation unit 65, and two treatments can be performed with one endoscope treatment tool 45.

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 third embodiment, both the first channel 17 and the second channel 42 are arranged to be opened at the tip of the insertion portion 43. As shown in FIG. An endoscope treatment system 75 including an endoscope 73 and an endoscope treatment tool 45 in which the second channel 42 communicates in the middle of the channel 17 may be used.

It is a side view showing the partial section of the endoscope treatment system concerning a 1st embodiment of the present invention. It is a side view which shows the partial cross section of the endoscope treatment system which concerns on the 2nd Embodiment of this invention. It is a side view which shows the partial cross section of the endoscope treatment system which concerns on the 3rd Embodiment of this invention. It is a side view which shows the treatment tool system for endoscopes of the endoscope treatment system which concerns on the 3rd Embodiment of this invention. It is the A section enlarged view of FIG. It is a side view which shows the partial cross section of the endoscope treatment system which concerns on other embodiment of this invention.

Explanation of symbols

1, 30, 40, 75 Endoscope treatment system 2, 45 Endoscope treatment tool 3, 31, 41, 73 Endoscope 5 Treatment unit 6, 46 Treatment tool insertion part 8, 60 Sheath part 15, 35, 43 Insertion part 16, 52 Operation part 17 1st channel 18, 32, 42 2nd channel 48 1st treatment unit 51 2nd treatment unit 61 1st operation wire (1st transmission means)
62 2nd operation wire (2nd transmission means)
63 1st operation part 65 2nd operation part

Claims (6)

An endoscopic treatment instrument having flexibility;
A flexible insertion portion, an operation portion connected to the proximal end side of the insertion portion, and a first portion that is formed extending from the distal end of the insertion portion to the operation portion and into which the endoscope treatment instrument can be inserted. A second channel that is communicated with the first channel and extends from the operation portion toward the distal end of the insertion portion, and through which the endoscope treatment instrument inserted into the first channel can be inserted. An endoscope having
An endoscopic treatment system comprising:   The endoscope treatment system according to claim 1, wherein a distal end of the second channel is connected in the middle of the first channel.   The endoscope treatment system according to claim 1, wherein a distal end of the second channel is opened at a distal end of the insertion portion. The endoscope treatment system according to any one of claims 2 and 3, wherein the endoscope includes the first channel and the second channel that can be advanced and retracted.
A treatment instrument insertion portion having flexibility;
A treatment instrument for an endoscope, comprising: a treatment unit that is disposed at a distal end of the treatment instrument insertion portion and performs a treatment by receiving an axial force. The endoscope treatment system according to any one of claims 2 and 3, wherein the endoscope includes the first channel and the second channel that can be advanced and retracted.
A treatment instrument insertion portion having flexibility;
A first treatment unit that is disposed at one end of the treatment instrument insertion portion and receives an axial force to perform treatment;
A treatment instrument for an endoscope, comprising: a second treatment unit that is disposed at the other end of the treatment instrument insertion portion and performs treatment by receiving an axial force. The treatment instrument insertion portion is
A flexible sheath portion;
A first transmission means arranged to be able to advance and retreat in the sheath portion and transmit axial force to the first treatment unit;
A second transmission means arranged to be capable of moving forward and backward in the sheath portion and transmitting axial force to the second treatment unit;
A first operating portion connected to the first transmission means on the other end side of the sheath portion and movable in the axial direction with respect to the sheath portion;
The second operation unit connected to the second transmission means on one end side of the sheath part and movable in the axial direction with respect to the sheath part. Endoscopic treatment tool.

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