JP2005073759A - Treatment instrument and endoscopic treatment system with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a treatment instrument capable of inhibiting a body fluid attached on the outer surface of an insertion part from adhering to an operator or dropping to the floor or in the periphery, and facilitating the manual operation, and an endoscopic treatment system with the same. <P>SOLUTION: Biopsy forceps 1 comprise the insertion part 7 to be inserted into a forceps channel from a forceps mouth formed in an endoscope insertion part of an endoscope, a forceps part (a treatment instrument distal end part) 8 connected to the distal end of the insertion part 7, an operation part 10 connected to the base end of the insertion part 7 for operating the forceps part 8, and a flexible cover member 11 for sealing the insertion part 7 and the forceps part 8 in such a way that they can be unsealed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a treatment tool used with an endoscope and an endoscope treatment system including the same.

Conventionally, a flexible endoscope insertion part is inserted into a body cavity and an affected part is observed, and a forceps channel provided in the endoscope insertion part is inserted through a forceps port to perform various treatments. A treatment tool such as a forceps is known (for example, see Patent Document 1).
JP 11-76244 A (FIG. 1)

However, in the above-described conventional treatment tool, when the inserted forceps channel is wet with a liquid such as a body fluid, the liquid such as a body fluid is accumulated between the coil-shaped windings that are the outer peripheral surface of the insertion portion. Since the liquid may spill outside the endoscope when it is removed from the endoscope, there is a problem that the procedure becomes complicated due to this processing and the like.
The present invention has been made in view of the above circumstances, and suppresses body fluids or the like adhering to the outer peripheral surface of the insertion portion from adhering to an operator or the like or dripping down to the floor or the surroundings, thereby facilitating the procedure. An object of the present invention is to provide a treatment tool that can be used and an endoscope treatment system including the treatment tool.

The present invention employs the following means in order to solve the above problems.
A treatment tool according to the present invention includes an insertion portion that is inserted into a forceps channel from a forceps port formed in an endoscope insertion portion, a treatment tool distal end portion that is connected to a distal end of the insertion portion, and An operation unit connected to a proximal end for operating the distal end portion of the treatment instrument, and a cover member covering the insertion portion and the distal end portion of the treatment instrument, the cover member being attachable to and removable from the forceps opening A distal end mounting portion and a flexible cover body having a distal end side in close contact with the distal end mounting portion and a proximal end side in close contact with the operation portion are provided.

Since this treatment instrument has the above-described configuration, the sealed cover member is opened immediately before use, the tip attachment portion is attached to the forceps port, and the insertion portion and the cover portion are contracted while the cover body is provided. By inserting the distal end portion of the treatment instrument into the forceps channel, these can be taken out of the forceps port again in a state of being covered with a cover member. For this reason, even if bodily fluids or the like adhering to the outer peripheral surface of the insertion portion hang down outside the forceps opening, it can be shielded by the cover body, and can adhere to the operator or hang down on the floor or surroundings. Can be suppressed.
In addition, by sterilizing the insertion portion and the distal end portion of the treatment instrument sealed with the cover member, a sterilized state can be maintained until just before use, and the cover member can be used as a conventional sterilization pack.

Further, the treatment tool of the present invention is the treatment tool, wherein the distal end attachment portion is formed with a through-hole through which the insertion portion can be inserted into the forceps port in a state of being attached to the forceps port. preferable.
Since this treatment tool has the above-described configuration, the insertion portion can be inserted into and removed from the forceps channel via the tip attachment portion. Therefore, the inside of the cover member can be sealed while the tip mounting portion and the forceps opening are connected, and the liquid can be more effectively prevented from leaking from the cover member.

Moreover, the treatment tool of this invention is the said treatment tool, Comprising: It is preferable that the said cover main body is comprised with the transparent member.
Since this treatment tool has the above-described configuration, it can be performed while confirming the insertion portion or the like at the time of insertion or removal from the forceps opening, and the insertion / removal operation can be performed reliably.

Moreover, the treatment tool of the present invention is the treatment tool, and the tip of the cover body is preferably closed so as to be openable.
Since this treatment instrument has the above-described configuration, it is not necessary to remove the treatment instrument from the sterilization pack after opening the conventional sterilization pack, and the cover member is opened and the insertion portion is inserted into the forceps channel as it is. be able to.

Moreover, the treatment tool of the present invention is the treatment tool, and it is preferable that a proximal end side sealing portion that seals the operation portion is provided on a proximal end side of the cover body.
Since this treatment instrument has the above-described configuration, the operation part is sealed together with the insertion part sealed with the cover member and the distal end part of the treatment tool and sterilized to maintain the sterilized state until just before use. The cover member can be used as a sterilization pack including the operation part.

Moreover, the treatment tool of the present invention is the treatment tool, and the tip mounting portion is preferably an O-ring.
Since this treatment instrument has the above-described configuration, it can be closely attached to the forceps opening with high sealing performance, and can be easily attached and detached with a simple configuration.

Moreover, the treatment tool of the present invention is the treatment tool, and it is preferable that the distal end mounting portion is provided with a lid portion that covers the through hole and can be opened and closed.
Since this treatment tool has the above-described configuration, the insertion portion can be covered with the cover member again after the insertion portion is removed from the forceps opening, and the insertion portion can be covered with the cover member more effectively. Can be suppressed.

  Further, the treatment tool of the present invention includes an insertion portion that is inserted into a forceps channel from a forceps port formed in an endoscope insertion portion provided in an endoscope, and a treatment tool distal end portion that is connected to the distal end of the insertion portion. And an operation unit that is connected to a proximal end of the insertion part and operates the distal end part of the treatment instrument, and a cover member that covers the insertion part and the distal end part of the treatment instrument, and the cover member is flexible, And it has the water absorption member which has water absorption, It is characterized by the above-mentioned.

  Since this treatment tool has the above-described configuration, the insertion portion and the distal end portion of the treatment tool are inserted into the forceps channel in a state where the water absorption member is provided outside the forceps opening. The body fluid or the like adhering to the surface can be removed while the water absorbing member absorbs water. Therefore, it is possible to suppress body fluid or the like from adhering to an operator or the like, or dropping from the insertion portion to the floor or the surroundings.

An endoscope treatment system according to the present invention includes the treatment tool according to the present invention, and an endoscope having a forceps port in which the tip mounting portion of the treatment tool is detachably formed. To do.
Since this endoscope treatment system has the above-described configuration, even if bodily fluid or the like adhering to the outer peripheral surface of the insertion portion of the treatment tool drips outside the forceps opening, it can be shielded by the cover body. It is possible to suppress adhesion to the surgeon or the like, or dripping on the floor or surroundings.
In addition, by sterilizing the insertion portion and the distal end portion of the treatment instrument sealed with the cover member, a sterilized state can be maintained until just before use, and the cover member can be used as a conventional sterilization pack.

  According to the present invention, when the treatment tool is pulled out from the forceps channel of the endoscope, the liquid such as body fluid attached to the outer peripheral surface of the insertion portion of the treatment tool adheres to the operator or hangs down on the floor or the surroundings. This can be suppressed and the procedure can be facilitated.

A first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
As shown in FIG. 1, the endoscope treatment system A according to the present embodiment includes a biopsy forceps (treatment tool) 1 and a flexible endoscope 2 into which the biopsy forceps 1 is inserted.
The biopsy forceps 1 is connected to an insertion portion 7 inserted into a forceps channel 6 from a forceps port 5 formed in an endoscope insertion portion 3 provided in an endoscope 2 and a distal end of the insertion portion 7. A forceps portion (tip portion of the treatment instrument) 8, an operation portion 10 that is connected to the proximal end of the insertion portion 7 and operates the forceps portion 8, and a flexible cover member 11 that covers the insertion portion 7 and the forceps portion 8. I have.

The insertion portion 7 includes a sheath tube portion 12 made of a coiled winding and an operation wire portion (not shown) disposed in the sheath tube portion 12.
The forceps portion 8 includes a pair of cup-shaped forceps pieces 13 and 15 that are formed in a bowl shape and can be opened and closed with each other, and are opened and closed by advancing and retracting the operation wire portion.
The operation unit 10 includes an operation unit main body 16 connected to the insertion unit, and a slide unit 17 connected to the operation wire unit.

The cover member 11 includes an annular O-ring (tip mounting portion) 18 that can be attached and detached in close contact with the forceps opening 5, a tip 11 a side that is in close contact with the O-ring 18, and a base end 11 b side that is fixed to the operation unit main body 16. And a cover body 20 having flexibility.
The O-ring 18 is disposed near the front end 11 a of the cover member 11 between the cover main body 20 and an O-ring fixing sheet 21 disposed on the inner peripheral surface of the cover main body 20. The O-ring 18 is made of rubber, and a through-hole 22 through which the insertion portion 7 can be inserted into the forceps port 5 while being attached to the forceps port 5 is formed in the center.

The cover body 20 is made of a transparent member made of a gas permeable film mainly composed of a polyolefin-based resin described in JP-A-8-52816, and is formed in an elongated bag shape. A part of the cover body 20 on the front end 20a side is closed so as to be able to be sealed by heat sealing or an adhesive, and the front end 20a serves as an opening portion 23 that allows the cover main body 20 to be opened.
Further, a base end side sealing portion 24 is provided on the base end 20b side of the cover main body 20 so that the peripheral portion reaching the operation portion main body 16 is sealed so that the operation portion 10 can be opened by heat sealing or an adhesive. An unsealing portion 23 is formed at the end 20b to enable the proximal end side sealing portion 24 to be unsealed.

Next, a method of using the endoscope system A of the present embodiment having the above configuration will be described.
First, the insertion portion 7, forceps portion 8, and operation portion 10 of the biopsy forceps 1 are housed in the cover member 11 and the proximal end side sealing portion 24, and sealed by heat sealing or an adhesive to be sterilized.
When the biopsy forceps 1 is used while being attached to the endoscope 2, the opening 23 of the proximal end side sealing portion 24 shown in FIG. To expose.
After inserting the endoscope insertion portion 3 into the body cavity, the opening portion 23 on the distal end 20a side of the cover body 20 is peeled off to such an extent that the distal end 20a side of the cover body 20 is opened, and the O-ring 18 is expanded. The through hole 22 is attached by engaging with the outer periphery of the forceps opening 5. Then, the insertion portion 7 is inserted into the forceps channel 6 while being inserted through the through hole 22. At this time, as shown in FIG. 1, the cover body 20 shrinks while being crumpled in the axial direction as the insertion portion 7 is inserted.
In this way, the forceps 8 is protruded from the distal end of the endoscope insertion portion 3 to perform a predetermined treatment.

After the treatment is completed, the insertion portion 7 is removed from the forceps channel 6. At this time, the cover body 20 is extended in the axial direction as the insertion portion 7 is removed from the forceps opening 5. At this time, when a liquid such as a body fluid or physiological saline is sucked through the forceps channel 6 during the treatment, these liquids adhere to the forceps channel 6 so that the liquid is interposed between the windings of the insertion portion 7. Has accumulated. Therefore, the liquid drips from the insertion portion 7 exposed to the outside from the forceps opening 5.
At this time, since the insertion portion 7 is in the cover member 11, body fluid or the like remains in the cover member 11 and does not leak outside.

According to this endoscope treatment system A, even if bodily fluid or the like adhering to the outer peripheral surface of the insertion portion 7 of the biopsy forceps 1 drips outside the forceps opening 5, it can be shielded by the cover body 20. It is possible to suppress adhesion to the surgeon or the like and dripping on the floor or surroundings.
Further, by sterilizing the insertion portion 7, the forceps portion 8, and the operation portion 10 sealed with the cover member 11, the sterilized state can be maintained until just before use, and the cover member 11 can be used as a sterilization pack. it can. Therefore, it is not necessary to open the sterilization pack and take out the treatment instrument as in the prior art, and the forceps 8 can be inserted into the forceps channel 6 as it is after the cover body 20 is opened.
Furthermore, it can be performed while confirming the state of the insertion portion 7 at the time of insertion into or removal from the forceps port 5, and the attachment / detachment operation can be performed reliably.
In addition, the O-ring 18 allows the cover member 11 and the forceps opening 5 to be in close contact with each other with high sealing performance, and can be easily attached and detached with a simple configuration.

Next, a second embodiment according to the present invention will be described with reference to FIG. In the following description, the same reference numerals are given to the components described in the above embodiment, and the description thereof is omitted.
The second embodiment is different from the first embodiment in that the distal end mounting portion of the biopsy forceps 1 is an O-ring 18 in the first embodiment, but a slit (through hole) in the second embodiment. Reference numeral 25 denotes a valve body (tip mounting portion) 26 formed at the center.
The biopsy forceps 27 has the same configuration as that of the first embodiment, but a valve body 26 that is detachably attached to the forceps port 5 is disposed on the distal end 28a side of the cover member 28.
That is, the valve body 26 has a rubber cylindrical shape having the same shape as the forceps stopper connected to the forceps port 5, and a concave portion 26 </ b> A that can be engaged with the forceps port 5 is formed on the distal end surface 26 a. A slit 25 through which the insertion portion 7 can pass is formed at the center of the end face 26b. The cover body 20 is in close contact with the inner peripheral surface of the cover body 20 by heat sealing or an adhesive.

  According to the biopsy forceps 27, the same operation and effect as in the first embodiment can be obtained, and the valve body 26 can be engaged with the forceps port 5 instead of the forceps plug, thereby being more stable. The cover member 11 can be attached to the forceps opening 5.

Next, a third embodiment according to the present invention will be described with reference to FIG. In the following description, the same reference numerals are given to the components described in the above embodiment, and the description thereof is omitted.
The third embodiment is different from the second embodiment in that the cover member 28 includes a disc-shaped lid portion 30 on which a convex portion 30A that can be engaged with the concave portion 26A of the valve body 26 is formed. This is the point.
The lid portion 30 is connected to the outer peripheral surface of the cover member 28 to which the valve body 26 is in close contact by a rubber relay member 31.

A method of using the biopsy forceps 32 of the present embodiment having the above configuration will be described.
Also in the present embodiment, when used by being attached to the endoscope 2, first, the opening portion 23 of the proximal end side sealing portion 24 is peeled off and broken to expose the operation portion 10 to the outside, and then the cover body The tip 20a of 20 is peeled off to such an extent that it opens. Then, after engaging the concave portion 26 </ b> A of the valve body 26 with the forceps port 5, the insertion portion 7 is inserted into the forceps channel 6 while being inserted through the slit 25. At this time, as in the first embodiment, the cover body 20 shrinks while being crumpled in the axial direction as the insertion portion 7 is inserted.
In this way, the forceps 8 is protruded from the distal end of the endoscope insertion portion 3 to perform a predetermined treatment.

After the treatment is completed, the cover body 20 is extended in the axial direction as the insertion portion 7 is removed from the forceps channel 6 as in the first embodiment.
After complete removal from the forceps port 5, the valve body 26 is removed from the forceps port 5, and the slit 30 is formed by engaging the convex portion 30 </ b> A of the lid portion 30 connected to the relay member 31 and the concave portion 26 </ b> A of the valve body 26. The insertion portion 7 and the forceps portion 8 are accommodated in the cover main body 20.
At this time, even if liquid such as bodily fluid accumulates between the windings of the insertion portion 7 and drops from the insertion portion 7 exposed to the outside from the forceps port 5, the insertion portion 7 is in the cover member 28. The body fluid or the like stays in the cover member 28 and does not leak to the outside, and is treated without the body fluid or the like adhering to the operator or dropping on the floor or surroundings.
According to the biopsy forceps 32, the insertion portion 7 can be covered with the cover member 28 again after the insertion portion 7 is removed from the forceps opening 5 and then the slit 25 is closed with the cover portion 30. The dripping of water can be suppressed more effectively.

Next, a fourth embodiment according to the present invention will be described with reference to FIG. In the following description, the same reference numerals are given to the components described in the above embodiment, and the description thereof is omitted.
The fourth embodiment is different from the above-described embodiment in that the O-ring 18 is disposed as a tip mounting portion on the cover member 11 in the first embodiment, but the cover member 33 is provided in the fourth embodiment. However, the water-absorbing member 35 having flexibility and water absorption is provided.

Similar to the first embodiment, the biopsy forceps 36 includes an insertion portion 7 inserted into the forceps channel 6 from a forceps port 5 formed in the endoscope insertion portion 3 provided in the endoscope 2, and A forceps part 8 connected to the distal end of the insertion part 7, an operation part 10 connected to the proximal end of the insertion part 7 to operate the forceps part 8, and a cover member 33 covering the insertion part 7 and the forceps part 8. ing.
The cover member 33 includes a cover main body 20 and a water-absorbing member 35 that is arranged in contact with the insertion portion 7 on the distal end 20a side in the cover main body 20 and has flexibility and water absorption. .

A method of using the biopsy forceps 36 of the present embodiment having the above configuration will be described.
First, similarly to the above-described embodiment, the insertion portion 7, the forceps portion 8, and the operation portion 10 are housed in the cover member 11 and the proximal end side sealing portion 24, and sealed by heat sealing or an adhesive to be sterilized. .
When used by being attached to the endoscope 2, the opening portion 23 of the proximal end side sealing portion 24 is peeled off and opened to expose the operation portion 10 to the outside.
After inserting the endoscope insertion portion 3 into the body cavity, the opening portion 23 on the distal end 20a side of the cover main body 20 is peeled off to the extent that the distal end 20a of the cover main body 20 is opened, so that the insertion portion 7 and the forceps portion are opened. 8 is inserted into the forceps channel 6 from the forceps port 5. At this time, as in the first embodiment, the cover body 20 shrinks in the axial direction while becoming crumpled as the insertion portion 7 is inserted. At this time, the water absorbing member 35 also shrinks together with the cover body 20 outside the forceps port 5.
In this way, the forceps 8 is protruded from the distal end of the endoscope insertion portion 3 to perform a predetermined treatment.

After the treatment is completed, the cover body 20 and the water absorbing member 35 are extended in the axial direction as the insertion portion 7 is removed from the forceps channel 6 as in the above embodiment.
At this time, since the water absorbing member 35 is in contact with the outer peripheral surface of the insertion portion 7, body fluid or the like accumulated between the windings of the insertion portion 7 is absorbed by the water absorbing member 35. Further, since the water absorbing member 35 remains in the state of being disposed in the cover body 20, the body fluid stays in the cover member 33 and does not leak to the outside. It is treated in the state where it does not.
According to the biopsy forceps 36, when the insertion portion 7 is removed from the forceps channel 6, body fluid or the like attached to the outer peripheral surface can be taken out while the water absorbing member 35 absorbs water. Therefore, it is possible to suppress body fluid or the like from adhering to the surgeon or the like or dripping down from the insertion portion 7 to the floor or surroundings.

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 first embodiment, the tip mounting portion is the O-ring 18, but as shown in FIGS. 6 and 7, it may be a rubber ring member 37 that can expand and contract in the radial direction. .
The through hole 38 of the ring member 37 is sized to be in close contact with the outer peripheral surface of the insertion portion 7 in a contracted state, and is sized to be attached to the forceps port 5 in a state of extending in the radial direction.
In this case, since the outer peripheral surface of the insertion portion and the inner surface of the through-hole 38 are in close contact with each other, dripping of body fluid or the like toward the distal end side of the insertion portion 7 can be blocked.

Moreover, the notch part which can open a cover main body or a base end side sealing part may be formed. In this case, instead of peeling off the opening part 23, the cover main body and the proximal end side sealing part can be opened by incising the notch part.
Furthermore, in the third embodiment, the lid 30 is connected to the cover member 28 by the relay member 31. However, even if the lid 30 is directly connected to the valve body 26 and is provided in the cover body 20 together with the valve body 26. I do not care.
Further, the arrangement position of the O-ring 18 and the ring member 37 is not limited to the vicinity of the front end 20a of the cover body 20, but may be on the front end 20a side as shown in FIG.

It is a top view which shows the state which inserted the treatment tool which concerns on the 1st Embodiment of this invention in the flexible endoscope. It is a top view including the partial cross section which shows the treatment tool which concerns on the 1st Embodiment of this invention. It is a top view including the partial cross section which shows the treatment tool which concerns on the 2nd Embodiment of this invention. It is a top view including the partial cross section which shows the treatment tool which concerns on the 3rd Embodiment of this invention. It is a top view including the partial cross section which shows the treatment tool which concerns on the 4th Embodiment of this invention. It is a top view including the partial cross section which shows the treatment tool which concerns on other embodiment of this invention. It is a top view including the partial cross section which shows the treatment tool which concerns on other embodiment of this invention. It is a top view including the partial cross section which shows the treatment tool which concerns on other embodiment of this invention.

Explanation of symbols

1, 27, 32, 36 Biopsy forceps (treatment tool)
2 Endoscope 3 Endoscope insertion part 5 Forceps port 6 Forceps channel 7 Insertion part 8 Forceps part (treatment tool tip)
10 Operation part 11, 28, 33 Cover member 18 O-ring (tip attachment part)
20 Cover body 20a Cover body distal end 20b Cover body base end 22, 38 Through hole 24 Base end side sealing portion 25 Slit (through hole)
26 Valve body (tip mounting part)
30 Lid part 35 Water absorption member 37 Ring member (tip attachment part)
A Endoscopic treatment system

Claims (9)

An insertion portion that is inserted into the forceps channel from a forceps port formed in the endoscope insertion portion;
A treatment instrument tip connected to the tip of the insertion portion;
An operation unit connected to a proximal end of the insertion unit and operating the distal end portion of the treatment instrument;
A flexible cover member that covers the insertion portion and the distal end portion of the treatment instrument,
The cover member is attached to and detachable from the forceps opening;
A treatment instrument comprising: a flexible cover body having a distal end side in close contact with the distal end mounting portion and a proximal end side in close contact with the operation portion.   The treatment tool according to claim 1, wherein the distal end attachment portion is formed with a through-hole through which the insertion portion can be inserted into the forceps opening while being attached to the forceps opening.   The treatment tool according to claim 1 or 2, wherein the cover body is made of a transparent member.   The treatment tool according to any one of claims 1 to 3, wherein a front end of the cover body is closed so as to be opened.   The treatment instrument according to any one of claims 1 to 4, wherein an openable proximal end side sealing portion that seals the operation portion is provided on a proximal end side of the cover main body.   The treatment tool according to any one of claims 1 to 5, wherein the distal end attachment portion is an O-ring.   The treatment tool according to any one of claims 1 to 5, wherein the distal end attachment portion is provided with a lid portion that covers the through hole and can be opened and closed. An insertion portion that is inserted into a forceps channel from a forceps port formed in an endoscope insertion portion provided in the endoscope;
A treatment instrument tip connected to the tip of the insertion portion;
An operation unit connected to a proximal end of the insertion unit and operating the distal end portion of the treatment instrument;
A cover member covering the insertion part and the distal end of the treatment instrument,
A treatment instrument, wherein the cover member includes a flexible and water-absorbing member. The treatment instrument according to any one of claims 1 to 8,
An endoscope treatment system comprising: an endoscope having a forceps opening in which the distal end mounting portion of the treatment tool is detachably formed.

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