JP2005304773A - Treatment tool for endoscope and endoscope as well as storing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a treatment tool for an endoscope with which sampling of tissues or cells can be quickly executed. <P>SOLUTION: The treatment tool 1 which is inserted and used in the endoscope 43 is constituted to have a treatment section unit 2 at a pointed head which is freely attached to and removed from an insertion section unit 3. The treatment section unit 2 is inserted in a collection bottle 32 of a storing apparatus 29b after the sampling of the tissues. The storing apparatus 29b includes a removing section 31b of the treatment section unit 2. The removing section 31b has a slit 33 wherein the insertion section unit 3 can be inserted but an engagement member 26 can not be inserted, and when the insertion section unit 3 is inserted in the slit 33 and pulled upward, an attachment section of the treatment section unit 2 can be exposed and removed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an endoscope treatment tool, an endoscope, and a storage device that are inserted into a forceps channel of an endoscope and collect a tissue specimen and cells from the body.

Conventionally, as an endoscopic treatment tool for collecting tissue specimens and cells from the body, a biopsy forceps having a pair of forceps cups that are opened and closed by a link mechanism that is operated by remote operation from the hand (at the tip) For example, Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4) and a cell collection tool (see, for example, Patent Document 5) in which a collection member made of a brush is provided at the tip portion are known. Tissues and cells collected with such biopsy forceps and cell collection tools are immersed in liquids such as formalin and physiological saline and transported to the place where pathological diagnosis is performed. Assistants such as nurses and nurses are in charge.
JP 11-76244 A Japanese Patent Laid-Open No. 10-309284 WO 98/01080 specification West German utility model No. 8905099 Japanese Patent Laid-Open No. 2-224651

However, in such a biopsy forceps or cell sampling tool, each time a sample is taken, the treatment tool is handed over to the assistant for processing the sample. The treatment tool had to be received and used again or a new treatment tool had to be used, and the collection could not be performed quickly.
In addition, in the case where the distal end portion of the treatment instrument is made detachable as in Patent Document 2, Patent Document 3, and Patent Document 4, the distal end portion is troublesome to attach and detach, and the distal end portion can be replaced quickly. Absent.
The present invention has been made paying attention to the above-described problems, and an object of the present invention is to provide an endoscopic treatment tool that can quickly collect tissues and cells. In particular, it is to provide an endoscopic treatment tool that can quickly collect tissue and cells when they are repeatedly collected. It is another object of the present invention to provide an endoscopic treatment tool in which the time for sample processing of collected tissues and cells does not affect the next collection when the collection of tissues and cells is repeated.

The invention according to claim 1 that solves the above-described problem has a distal treatment section that is inserted into the body and collects a specimen from the body, an operation section that operates the distal treatment section, and the operation section at the base end. A treatment instrument insertion section in which the distal treatment section is detachable at the distal end; an exterior that removes the distal treatment section mounted on the treatment instrument insertion section; a collection container that collects a sample collected by the distal treatment section; An endoscopic treatment tool comprising:
Since the distal treatment section is detachable in this endoscope treatment tool, the distal treatment section can be removed after the sample is collected. When removing the distal treatment section, the external part is used, and the sample in the removed distal treatment section is collected in a collection container. For example, the removed distal treatment section is inserted into the collection container together with the sample.

The invention according to claim 2 is the endoscope treatment instrument according to claim 1, further comprising an attachment mechanism for mounting the distal treatment section on the treatment instrument insertion section, wherein the attachment mechanism includes the distal treatment section. The proximal end has an attachment portion to the treatment instrument insertion portion, and a fitting portion urged by a first elastic member so as to cover the attachment portion, and the storage device has a shaft of the distal treatment portion A slit that opens to allow one end surface to pass through the distal treatment section, and an axial direction so that the distal treatment section cannot pass through the slit by urging the distal treatment section in the axial direction from the distal end side. At the same time, the fitting portion includes a second elastic member that moves the fitting portion relative to the attachment portion against the first elastic member to expose the attachment portion.
In this endoscopic treatment instrument, when the distal treatment section is inserted into the attachment mechanism, the distal treatment section is biased by the second elastic member, and the position of the slit of the attachment mechanism and the distal treatment section are shifted, leading to the distal treatment section. Can not escape. At this time, due to the action of the first elastic member and the second elastic member, the attachment portion is exposed on the proximal end side of the distal treatment portion. Since the attachment portion is configured to be attached to the treatment instrument insertion portion when exposed, the attachment portion can be attached to the treatment instrument insertion portion in a state where the distal treatment portion is accommodated in the attachment mechanism.

According to a third aspect of the present invention, in the endoscope treatment instrument according to the first aspect, the distal treatment section is configured such that the proximal end covers the attachment section to the treatment instrument insertion section and the attachment section. A fitting portion urged by one elastic member, and the exterior of the distal treatment portion has a locking portion, into which the treatment instrument insertion portion can be inserted. A groove for locking the fitted portion is provided without being able to insert the fitted portion.
In this endoscope treatment tool, the fitted portion of the distal treatment portion is covered with the attachment portion in the natural state, but can be exposed by a groove on the outside of the exterior. That is, when the treatment instrument insertion portion is pulled in a state where the treatment instrument insertion portion is inserted into the groove, the fitting portion cannot be passed through the groove, so that the attachment portion is exposed. For this reason, a connection with a treatment tool insertion part becomes easy.

According to a fourth aspect of the present invention, in the endoscope treatment tool according to the third aspect, the collection container is disposed below the groove.
In this endoscope treatment tool, since the collection container is disposed below the groove, for example, with the distal treatment section inserted into the collection container, the attachment section can be exposed and removed from the treatment instrument insertion section. It becomes possible.

The invention according to claim 5 is the endoscope treatment tool according to any one of claims 1 to 4, further comprising an endoscope attachment portion that attaches the external part to the endoscope. And
In this endoscope treatment tool, the external part can be attached to the endoscope by the endoscope attachment portion. For this reason, the operation of removing the distal treatment section is facilitated.

The invention according to claim 6 is the endoscope treatment instrument according to any one of claims 1 to 5, wherein the outside and the collection container are integrally provided. To do.
In this endoscopic treatment tool, since the external part and the collection container are integrally provided, handling becomes easy.

The invention according to claim 7 is the endoscopic treatment tool according to any one of claims 1 to 6, wherein the external part has a hooking part that engages with the external part. It is characterized by that.
In this endoscope treatment tool, a plurality of external parts can be connected and used. For example, it is useful when a plurality of specimens are continuously collected from the same patient.

The invention according to claim 8 is the endoscope treatment instrument according to any one of claims 1 to 7, wherein the distal treatment section is built in, and the distal treatment section is used as the treatment instrument insertion section. An attachment mechanism to be attached is provided integrally with the exterior part.
In this endoscope treatment instrument, since the attachment mechanism is provided integrally with the exterior, the work of attaching the distal treatment section to the treatment instrument insertion portion is facilitated.

The invention according to claim 9 is a channel through which a treatment instrument insertion portion of a treatment instrument for an endoscope having a distal treatment portion for collecting a specimen from the body at the distal end, the insertion portion inserted into the body, and the treatment An operation part provided at the proximal end of the instrument insertion part, an exterior for removing the distal treatment part mounted on the treatment instrument insertion part, and a sample collected below the exterior and collected by the distal treatment part And a recovery container for recovering the endoscope.
In this endoscope, the distal treatment section from which the specimen is collected can be engaged with the outside and removed from the treatment section insertion, and the specimen can be collected in the collection container.

The invention according to claim 10 is a treatment instrument for an endoscope in which a distal treatment section for collecting a sample from the body is detachably configured with respect to a distal end of a treatment instrument insertion section that is inserted through a channel of an endoscope. A storage device for collecting a specimen, wherein an external part for removing the distal treatment part attached to the treatment instrument insertion part and a recovery part disposed below the external part and for collecting the specimen collected by the distal treatment part And a container.
This storage device collects the sample collected by the distal treatment section of the endoscope treatment instrument inserted through the endoscope channel, and is used by the outside when removing the distal treatment section from the treatment instrument insertion section. It is done. The removed sample in the distal treatment section is collected in a collection container. For example, the removed distal treatment section is inserted into the collection container together with the sample.

According to an eleventh aspect of the present invention, in the storage device according to the tenth aspect, the storage device includes an endoscope attachment portion that attaches the exterior to the endoscope.
In this accommodation apparatus, it is used in a state of being attached to the endoscope at the endoscope attachment portion. For this reason, the operation of removing the distal treatment section becomes easier.

According to a twelfth aspect of the present invention, in the storage device according to the tenth or eleventh aspect, the outer part has a hooking portion that engages with the other outer part.
This accommodation device has a hook part and can be connected to another accommodation device. For example, it is useful when a plurality of specimens are continuously collected from the same patient.

  According to the present invention, since it has an exterior that removes the distal treatment section from the treatment instrument insertion portion, the specimen in the distal treatment section removed from the treatment instrument insertion section is collected in the collection container together with the distal treatment section. Quickly collect tissues and cells. In particular, it can be performed quickly when tissue and cells are repeatedly collected. Furthermore, when the collection of tissues and cells is repeated, the sample processing time of the collected tissues and cells does not affect the next collection.

A first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a usage state of a biopsy forceps 1 which is an endoscope treatment tool in the first embodiment. As shown in FIG. 2, the biopsy forceps 1 includes a treatment unit (tip treatment unit) 2 that can be attached to and detached from each other, an insertion unit (treatment instrument insertion unit) 3, and an operation unit 6.
The insertion unit 3 has a flexible sheath 4 made of a closely wound coil, and an operation wire 5 is inserted into the flexible sheath 4. The rear end of the flexible sheath 4 is fixed to the operation unit body 7 of the operation unit 6. The rear end of the operation wire 5 is attached to a slider 8 that is slidably fitted to the operation unit main body 7. A finger ring 7 a is provided at the rear end of the operation unit body 7. As shown in FIG. 2, a locking portion 9 is provided at the distal end of the flexible sheath 4, and a hook 10 is provided at the distal end of the operation wire 5. When the slider 8 is advanced or retracted, the hook 10 moves forward or backward via the operation wire 5.

The treatment section unit 2 has a flexible short sheath 11 made of a closely wound coil, and a treatment section 12 is attached to the distal end of the short sheath 11.
As shown in FIGS. 3 and 4, the treatment section 12 includes a pair of forceps cups 13 a and 13 b, a support body 15 that pivotally supports the forceps cups 13 a and 13 b by a support shaft 14, and the support body 15. And a pantograph mechanism 16 for opening and closing the forceps cups 13a and 13b. The forceps cups 13a and 13b have the same shape and are arranged to face each other. The pantograph mechanism 16 is formed by links 18a and 18b that are attached to the rearward extending arms of the forceps cups 13a and 13b by support pins 17a and 17b, and a support shaft 20 that couples the links 18a and 18b to the connecting member 19. Has been. A tip of a short wire 21 inserted into the short sheath 11 is fixed to the connecting member 19. The forceps cups 13a and 13b have accommodating portions 22a and 22b for accommodating a collected tissue as a specimen, and holes 23a and 22b are provided at the bottoms of the accommodating portions 22a and 22b so that the tissue is not crushed when the tissue is cut off. 23b is provided.
A guide member 24 is provided at the proximal end of the short sheath 11, a narrow diameter portion 24 a is formed on the guide member 24, and a pair of groove members 25 a and 25 b are formed at the proximal end of the narrow diameter portion 24 a. Yes. Further, a fitting member (fitting portion) 26 is provided at the base end of the guide member 24 so as to cover the pair of groove members 25a and 25b, and the fitting member 26 is urged toward the base end side to form a groove. A first spring 27, which is a first elastic member, is disposed on the outer periphery of the small diameter portion 24 a of the guide member 24 so as to cover the members 25 a and 25 b. A hook member 28 is provided at the proximal end of the short wire 21, and the hook member 28 is disposed between the groove members 25a and 25b.

The treatment section unit 2 and the insertion section unit 3 are connected as shown in FIGS.
As shown in FIG. 5, the fitted member 26 of the treatment section unit 2 is moved to the distal end side against the bias of the first spring 27, and the groove members 25a and 25b and the hook member 28 constituting the mounting portion are exposed. In this state, as shown in FIG. 6, the hook 10 of the insertion unit 3 is engaged with the hook member 28, and the protrusion 9a of the locking portion 9 is engaged with the grooves 25c and 25d of the groove members 25a and 25b. Then, as shown in FIG. 7, the fitted member 26 is biased toward the proximal end side by the first spring 27 and is fitted to the flexible sheath 4. When the slider 8 of the insertion unit 3 shown in FIG. 1 is moved forward and backward by connecting the treatment unit 2 and the insertion unit 3, the forceps cups 13 a, 13 a are connected via the operation wire 5, the short wire 21, and the pantograph mechanism 16. 13b can be opened and closed. When removing the treatment section unit 2 and the insertion section unit 3, it is sufficient to perform the reverse operation of the attachment.

The treatment unit 2 is stored in advance in storage devices 29a and 29b as shown in FIGS. In addition, the treatment tool for endoscopes of this embodiment shall be provided with at least 1 accommodation apparatus 29a, 29b.
The accommodation devices 29 a and 29 b include a base portion 31 protruding in the lateral direction from the support column 30 and a recovery bin (recovery container) 32 attached to the lower portion of the support column 30. The collection bin 32 is covered with a rubber plug 32b having a slit 32a. The pedestal 31 has an attachment mechanism 31 a for accommodating the treatment part unit 2, and an exterior 31 b of the treatment part unit 2 that is arranged alongside the attachment mechanism 31 a and is located above the recovery bin 32. Yes. The exterior 31b is an engaging portion in which a slit (groove) 33 is formed. The slit 33 is formed to have a size larger than the outer diameter of the flexible sheath 4 and smaller than the outer diameter of the fitted member 26.

On both sides of the base portion 31, hook portions 34a and 34b that can be engaged with each other are provided. As shown in FIG.10 and FIG.11, the accommodating apparatuses 29a and 29b can arrange | position the base part 31 side by side by engaging the hook parts 34a and 34b with each other. In the storage device 29b, an attachment portion (endoscope attachment portion) 35 for attaching an endoscope is provided above the base portion 31.
As shown in FIGS. 9 and 12, a storage portion 36 of the treatment portion unit 2 is formed in the attachment mechanism portion 31 a of the base portion 31. The storage unit 36 includes a storage groove 39 (see FIG. 12) that stores a second spring 38 that is a second elastic member connected to the receiving unit 37, and a slit 40, and a lid that covers the storage groove 39. It is comprised from the material 41 and the attachment field 42 where the groove members 25a and 25b and the hook member 28 of the treatment part unit 2 are exposed. The slit 40 of the lid 41 is formed in a shape similar to that of the treatment section unit 2 through which the treatment section unit 2 can pass. That is, the treatment section unit 2 has the support 15, the forceps cups 13 a and 13 b, and the fitted member 26 having a larger diameter than the outer diameter of the short sheath 11, and the slit 40 has a narrow width through which the short sheath 11 can pass. The portion 40a, the support 15 and the large portion 40b through which the forceps cups 13a and 13b can pass, and the large portion 40c through which the fitted member 26 can pass are formed.

  As shown in FIG. 13, the treatment section unit 2 is biased in the proximal direction by the second spring 38 in the storage groove 39, and the fitted member 26 is engaged by the locking end 39 a at the end of the storage groove 39. The first spring 27 is compressed, and the groove members 25a and 25b and the hook member 28 are relatively moved to be exposed to the attachment site 42. As described above, the second spring 38 has stronger elasticity than the first spring 27. Then, as shown in FIG. 14, in the state where the lid member 41 is covered, the shape of the slit 40 formed in the lid member 41 by the second spring 38 and the outer shape of the treatment unit unit 2 are shifted, and the treatment unit unit 2. An overlapping portion 41 a is generated such that the lid member 41 overlaps with the lid member 41, so that the treatment portion unit 2 does not pass through the slit 40 and the treatment portion unit 2 is prevented from being detached from the storage portion 36. That is, the attachment mechanism portion 31a accommodates the treatment portion unit 2 so that the treatment portion unit 2 cannot be extracted in a direction perpendicular to the axial direction (upward in FIG. 9) in a natural state.

Next, the operation of the biopsy forceps system 1 having such a configuration will be described.
First, as shown in FIG. 15, the accommodation device 29 b having the attachment portion 35 is hooked and attached to the forceps port 43 a of the endoscope 43. When biopsy is performed a plurality of times, as shown in FIG. 16, the convex portion of the hook portion 34a of the storage device 29a is engaged with and fixed to the concave portion of the hook portion 34b of the storage device 29b. Note that as many storage devices 29a as necessary for biopsy are attached.
In addition, a fixing solution 44 such as formalin solution is placed in the collection bottle 32 of the storage devices 29a and 29b.

Next, as shown in FIG. 17, the vicinity of the distal end of the insertion unit 3 is gripped, and the locking portion 9 and the hook 10 at the distal end are exposed to the mounting field 42 of the storage device 29 b. 25a, 25b and the hook member 28 are engaged from above. That is, as shown in FIG. 18, the hook 10 and the hook member 28 are engaged, and the protrusions 9a of the locking portion 9 are engaged with the grooves 25c and 25d of the groove members 25a and 25b, respectively. Then, as shown in FIG. 19, the insertion unit 3 is pushed forward in the axial direction of the treatment unit 2.
Then, as shown in FIG. 20, the second spring 38 in the accommodation device 29 b is compressed by the pushing force, and the first spring 27 extends to maintain the position of the fitted member 26, and the distal end of the treatment section unit 2. Will move forward. Accordingly, the fitted member 26 covers the connection portion (such as the hook 10) between the treatment section unit 2 and the insertion section unit 3 and the end of the flexible sheath 4 of the insertion section unit 3, and the outer shape of the treatment section unit 2 is This coincides with the outer shape of the slit 40 of the lid 41 of the storage device 29b. In this state, as shown in FIGS. 21 and 22, the treatment unit 2 passes through the slit 40 of the storage device 29 b while being connected to the distal end of the insertion unit 3 by pulling upward. And the connection of the treatment unit 2 is completed.

Next, the biopsy forceps 1 having been connected to the treatment unit 2 is inserted into the treatment instrument insertion channel of the endoscope 43 as shown in FIG. The treatment portion 12 is brought close to the target tissue to be examined, a thumb is inserted into the finger ring 8a shown in FIG. 1, and the slider 8 is held between the index finger and the middle finger and moved forward. As a result, the pantograph mechanism 16 shown in FIG. 3 is activated to open the forceps cups 13a and 13b. Next, when the forceps cups 13a and 13b are opened, the biopsy forceps 1 is pressed against the tissue and the slider 8 is retracted to close the forceps cups 13a and 13b, and the tissues are accommodated in the receiving portions 22a and 13b of the forceps cups 13a and 13b. 22b. When the forceps cups 13a and 13b are completely closed, the entire biopsy forceps 1 is pulled to complete the tissue sampling.
Thereafter, the biopsy forceps 1 is removed from the treatment instrument insertion channel of the endoscope 43, and then, as shown in FIG. 24, the distal end of the biopsy forceps 1 is recovered from the slit 32a of the rubber plug 32b of the storage device 29b. Plug in. As shown in FIG. 25, the flexible sheath 4 is inserted into the slit 33 of the storage device 29b so that the fitted member 26 of the treatment section unit 2 is below the pedestal 31 of the storage device 29b. Thus, the flexible sheath 4 is pulled upward. Then, as shown in FIG. 27, the fitted member 26 comes into contact with and catches on the bottom surface of the pedestal 31, and as shown in FIG. 28, the first spring 27 is compressed and the treatment unit 2 and the insertion unit 3 are connected. The connection part is exposed. Accordingly, as shown in FIGS. 29 and 30, the insertion unit 3 can be removed from the treatment unit 2 and only the treatment unit 2 can be left in the recovery bin 32. As shown in FIG. 31, the collected tissue may be handed over to the person who processes the specimen together with the storage device 29b.

Further, as shown in FIG. 32, the collected tissue 45 may be dropped into the fixative 44 by pressing the inner short wire 21 and opening the forceps cups 13 a and 13 b using a bottle 56 or the like.
In addition, when performing a biopsy several times, what is necessary is just to repeat the said effect | action. In this case, as shown in FIGS. 33 and 34, it is preferable to use the storage device 29a attached to the storage device 29b attached to the endoscope 43. Then, it is possible to remove the sample every time a biopsy is completed and to process the sample.

According to the present embodiment, the treatment section unit 2 is configured to be detachable with respect to the insertion section unit 3, and the accommodation device 29a including the attachment mechanism section 31a of the treatment section unit 2, the exterior 31b, and the recovery bin 32, 29b, the treatment unit 2 from which the tissue has been collected is inserted into the recovery bin 32, and can be removed from the insertion unit 3 so that the tissue can be collected quickly, especially when multiple times of collection are performed. Since the next collection can be performed without waiting for the processing of the collected tissue, the tissue can be collected quickly.
Here, the external part 31a can expose the attachment part of the treatment part unit 2 such as the hook member 28 and the groove members 25a and 25b only by pulling upward with the insertion part unit 3 inserted into the slit 33. With a simple configuration, the endoscope operator can be detached with one hand.
The biopsy forceps 1 may not include the accommodation devices 29a and 29b.

35 to 38 show a second embodiment of the present invention.
As shown in FIG. 35, in this embodiment, the storage device 46 is different from the first embodiment. In the storage device 46 of the present embodiment, a frame 46a is provided at the lower end, and a recovery bin 47 is provided on the frame 46a so as to be swingable left and right by pins 48a and 48b (see FIG. 36). Further, as shown in FIGS. 36 and 37, a collected tissue extractor 50 is formed in the rubber stopper 49 of the recovery bottle 47. The collected tissue extractor 50 enters the accommodating portions 22a and 22b of the forceps cups 13a and 13b through the holes 23a and 23b of the forceps cups 13a and 13b of the treatment unit 2 and pushes the protruding portions 50a and 50b that push out the collected tissue 45. Have. Other configurations are the same as those in the first embodiment.

  After the biopsy, the treatment unit 2 is removed from the insertion unit 3 and left in the recovery bin 47, and the forceps cups 13a and 13b are opened in the recovery bin 47. Then, the protrusions 50a and 50b of the collected tissue extractor 50 enter the accommodating portions 22a and 22b to push out the collected tissue 45. In this state, as shown in FIG. 38, when the collection bin 47 is swung left and right, the collected tissue 45 is detached from the forceps cups 13a and 13b. Thereby, the collected tissue can be easily dropped into the fixing solution 44.

  According to this embodiment, the same effect as the first embodiment can be obtained. Furthermore, since the collection bin 47 is provided so as to be swingable and includes the collected tissue extractor 50, it is easy to detach the tissue from the treatment section unit 12. For this reason, if the rubber stopper 32b of the recovery bottle 32 is removed, the tissue can be taken out as it is.

39 to 42 show a third embodiment of the present invention.
This embodiment is a cytodiagnosis brush 51. The treatment unit 52 of the cytodiagnosis brush 51 is made of a resin such as a fluorine tube, and is provided at the distal end of a short sheath 53 having a large diameter portion 53a formed on the distal end side and the short wire 21, and is made of nylon (DuPont). A brush 54 as a cell collection member made of a fiber such as a trademark is provided, and a tip tip 55 having the same diameter as the outer diameter of the large diameter portion 53a of the short sheath 53 is provided at the tip of the brush 54. The brush 54 is housed in the large-diameter portion 53a of the short sheath 53, and when the slider 8 is advanced, the brush 54 protrudes from the distal end of the short sheath 53 through the operation wire 5 and the short wire 21 as shown in FIG. To do. Other configurations are the same as those in the first embodiment.
The operation and effect of this embodiment is different from that of the first embodiment only in that the brush 54 is protruded from the distal end of the short sheath 53 in the body cavity and the target site is rubbed with the brush 54 to collect cells.

FIG. 43 shows a fourth embodiment of the present invention.
As shown in FIG. 43, the endoscope 60 has a storage device 61 attached below the forceps opening 43a. The accommodation device 61 includes a base portion 31 and a support column 30, and a collection bin 32 is detachably inserted into a holder 62 below the support column 30. Other configurations are the same as those of the first embodiment.
In this endoscope 60, since the storage device 61 is fixed, it is easy to handle. Further, since only the recovery bin 32 is taken out and handed over to the person who performs the sample processing, the processing is easy. Other operations and effects are the same as those of the first embodiment.

The present invention is not limited to the above embodiments and can be widely applied.
For example, in the first to third embodiments, the biopsy forceps 1 or the cytodiagnosis brush 51 may be an endoscope treatment tool including at least one accommodation device 29a, 29b, 46. In this case, in addition to the effects of the above-described embodiments, handling becomes easy.
Moreover, when using the some accommodating apparatus 29a, 29b, 46, you may accommodate the different treatment part units 2 and 52 in each. In this case, it is preferable to arrange the treatment section units 2 and 52 in the order of use. Furthermore, if the treatment unit units 2 and 52 used last are arranged below the forceps opening 43a, the treatment can be performed efficiently.
The accommodation devices 29a, 29b, 46, and 61 may not have the attachment portion 35. In this case, the treatment section units 2 and 52 taken out from the endoscope 43 are removed by the storage devices 29a, 29b, 46, and 61 fixed to other tables and the tissue is collected. Furthermore, you may comprise the collection container 32 with another body. In this case, the assistant only needs to handle the collection container 32. In this case, it is preferable that the collection container 32 is configured to be detachable from the support column 30.

[Additional Item 1]
The endoscope treatment tool according to claim 1, wherein the collection container is swingably provided in the storage device.
In this endoscope treatment tool, the collection container can be swung, so that the specimen in the distal treatment section can be easily detached from the distal treatment section and collected.

[Appendix 2]
The endoscopic treatment instrument according to claim 2, wherein the second elastic member is stronger in elasticity than the first elastic member.
In this endoscope treatment tool, since the second elastic member has high elasticity, the attachment portion can be exposed against the restoring force of the first elastic member.

[Additional Item 3]
The treatment instrument for an endoscope according to claim 2, wherein the shape of the slit is similar to the shape of the distal treatment section.
In this endoscopic treatment tool, the distal treatment section can be inserted from the slit. While the distal treatment section is biased by the second elastic member, the shape of the slit and the shape of the distal treatment section Cannot be extracted from the slit.

[Additional Item 4]
The treatment instrument for an endoscope according to appendix 3, wherein the distal treatment section has a part having a diameter larger than that of the other part.
In this endoscopic treatment tool, a part of the distal treatment portion has a relatively large diameter portion, so that the action of the supplementary item 3 can be easily realized by setting the shape of the slit in accordance with this. be able to.

[Additional Item 5]
The distal treatment section has a pair of biopsy cups, each of the biopsy cups has a hole, and the collection container penetrates the hole and removes the specimen from the biopsy cup. The endoscopic treatment tool according to any one of claims 1 to 3, further comprising a protruding portion to be separated.
In this endoscopic treatment tool, the specimen collected by the distal treatment section can be pushed out by allowing the protrusion to enter the biopsy cup, so that it is easy to remove the specimen from the distal treatment section and collect it. become.

It is a side view which shows the use condition of the treatment tool in embodiment of this invention. It is a figure which shows the state which removed the treatment part unit and the insertion part unit. It is the top view which made a part of front-end | tip part of a treatment tool the cross section. It is the side view which made a part of front-end | tip part of a treatment tool the cross section. It is a figure explaining the procedure which attaches a treatment part unit. It is a figure explaining the procedure which attaches a treatment part unit, Comprising: It is a figure which shows the state engaged with the insertion part unit. It is a figure explaining the procedure which attaches a treatment part unit, Comprising: It is a figure which shows the state connected to the insertion part unit. It is a figure which shows the structure of a storage apparatus. It is a figure which shows the structure of a storage apparatus. It is a figure explaining the case where two accommodating apparatuses are engaged. It is a figure which shows the state which engaged two accommodating apparatuses. It is an exploded view which shows the structure of an attachment mechanism part. It is a figure which shows the state which inserted the treatment part unit in the attachment mechanism part, Comprising: It is a figure which shows the state which removed the cover material. It is a figure which shows the state which inserted the treatment part unit in the attachment mechanism part. It is a figure which shows the state which attached the accommodating apparatus to the endoscope. It is a figure which shows the state which attached the two accommodating apparatuses to the endoscope. It is a figure explaining the procedure which attaches an insertion part unit to the treatment part unit accommodated in the accommodating apparatus. It is a figure explaining the state by which the insertion part unit was attached to the treatment part unit accommodated in the accommodating apparatus. It is a figure which shows the state which pushed in the insertion part unit which attached the treatment part unit. It is a figure which shows the state which the treatment part unit was pushed in and substantially corresponded with the shape of the slit. It is a figure which shows the state which took out the treatment part unit attached to the insertion part unit from the accommodating apparatus. It is an enlarged view which shows the state which took out the treatment part unit attached to the insertion part unit from the accommodating apparatus. It is a figure explaining the procedure which inserts the treatment part unit attached to the insertion part unit through an endoscope. It is a figure explaining the procedure which inserts the treatment part unit which extract | collected the sample into the collection bottle. It is a figure which shows the state which inserted the treatment part unit which extract | collected the sample into the collection bottle. It is a figure which shows the state which inserted the insertion part unit in the external slit. It is sectional drawing which shows the state which inserted the insertion part unit in the external slit. It is sectional drawing which shows the state which inserted the insertion part unit into the external slit, Comprising: It is a figure which shows the state which pulled the insertion part unit upwards and exposed the attachment part. It is sectional drawing which shows the state which removed the treatment part unit from the insertion part unit. It is a figure which shows the state which removed the treatment part unit from the insertion part unit. It is a figure which shows the state removed from the endoscope with the treatment part unit inserted in the recovery bottle. It is a figure which shows the state which opened the forceps cup of the treatment part unit inserted in the collection | recovery pin with a pin. It is a figure which shows the order used when two accommodating apparatuses are attached. It is a figure which shows the state removed from the 2nd accommodation apparatus, after collect | recovering tissues | tissues to the 1st accommodation apparatus. It is a figure which shows the structure of a storage apparatus. FIG. 36 is a cross-sectional view taken along line AA of FIG. FIG. 36 is a cross-sectional view taken along line AA of FIG. 35, showing a state where the treatment unit is inserted into the recovery bin. It is a figure which rocks the recovery bottle which inserted the treatment part unit. It is a figure which shows the structure of the cytodiagnosis brush as a treatment tool. It is an enlarged view of the front-end | tip part of a treatment tool. It is a figure which shows the state which inserted the treatment part unit in the attachment mechanism part, Comprising: It is a figure which shows the state which removed the cover material. It is a figure which shows the state which inserted the treatment part unit in the attachment mechanism part. It is a figure which shows the endoscope with which the accommodating apparatus was attached.

Explanation of symbols

1 Biopsy forceps (endoscopic instrument)
2 treatment unit (tip treatment unit)
3 Insertion unit (treatment instrument insertion part)
6 Operation part 25a, 25b Groove member (attachment part)
26 Fitting member (fitting part)
27 First spring (first elastic member)
28 Hook member (mounting part)
29a, 29b, 46, 61 accommodation device 31a attachment mechanism (attachment mechanism)
31b External (locking part)
32 Collection bin (collection container)
33 Slit (Groove)
34a, 34b Hook 35 Mounting part (Endoscope mounting part)
38 Second spring (second elastic member)
40 Slit 43, 60 Endoscope

Claims (12)

A tip treatment section that is inserted into the body and collects a specimen from the body;
An operation section for operating the distal treatment section;
A treatment instrument insertion portion having the operation portion at a proximal end and the distal treatment portion being detachable at a distal end;
An exterior for removing the distal treatment section mounted on the treatment instrument insertion section;
A collection container for collecting the sample collected at the distal treatment section;
An endoscopic treatment instrument comprising:   An attachment mechanism for attaching the distal treatment portion to the treatment instrument insertion portion, the attachment mechanism is configured so that the distal treatment portion covers the attachment portion to the treatment instrument insertion portion at the proximal end and the attachment portion. A slit that has a fitting portion biased by a first elastic member, and the accommodation device opens on one surface perpendicular to the axis of the distal treatment section so as to pass through the distal treatment section; and the distal treatment The portion is urged in the axial direction from the distal end side to shift the distal treatment portion in the axial direction so that the distal treatment portion cannot pass through the slit, and at the same time, the fitted portion is against the first elastic member with respect to the mounting portion. The endoscope treatment instrument according to claim 1, further comprising a second elastic member that is relatively moved to expose the attachment portion.   The distal treatment section has an attachment portion to the treatment instrument mirror insertion portion at a proximal end, and a fitted portion urged by a first elastic member so as to cover the attachment portion, and the distal treatment portion The external portion has a locking portion, and the locking portion is provided with a groove for locking the fitting portion without allowing the treatment instrument insertion portion to be inserted and the fitting portion to be inserted. The endoscope treatment tool according to claim 1, wherein the endoscope treatment tool is provided.   The treatment instrument for an endoscope according to claim 3, wherein the collection container is disposed below the groove.   The endoscope treatment tool according to any one of claims 1 to 4, further comprising an endoscope attachment portion that attaches the external part to an endoscope.   The endoscopic treatment instrument according to any one of claims 1 to 5, wherein the outside and the collection container are provided integrally.   The treatment instrument for an endoscope according to any one of claims 1 to 6, wherein the exterior has a hook portion that engages with the other exterior.   8. The attachment device according to claim 1, wherein the distal treatment section is internally provided, and an attachment mechanism for attaching the distal treatment section to the treatment instrument insertion section is provided integrally with the exterior. The endoscopic treatment tool according to Item. A channel through which the treatment instrument insertion portion of the treatment instrument for endoscope provided with a distal treatment section for collecting a specimen from the body at the distal end;
An insertion part to be inserted into the body,
An operation unit provided at a proximal end of the treatment instrument insertion unit;
An exterior for removing the distal treatment section mounted on the treatment instrument insertion section;
A collection container disposed below the exterior and collecting a sample collected by the distal treatment section;
An endoscope comprising: This is a storage device for collecting a sample from an endoscope treatment tool in which a distal treatment section for collecting a sample from the body is detachable with respect to a distal end of a treatment instrument insertion portion that is inserted into an endoscope channel. And
An exterior for removing the distal treatment section mounted on the treatment instrument insertion section;
A collection container disposed below the exterior and collecting a sample collected by the distal treatment section;
A storage device comprising:   The storage device according to claim 10, further comprising an endoscope attachment portion that attaches the exterior to the endoscope. The storage device according to claim 10 or 11, wherein the outer portion includes a hook portion that engages with the other outer portion.

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