JP4320201B2 - Endoscope gravity guidance device - Google Patents

Description

[0001]
【Technical field】
The present invention relates to an endoscopic gravity guidance apparatus used when, for example, a lesion is excised under endoscopic observation.
[0002]
[Prior art and its problems]
Conventionally, when excising a lesion inside a human body in a normal operation, the distance between the lesion and the adjacent normal tissue is widened by lifting the lesion using a grasping forceps, and the lesion and the normal tissue are in that state. It is excised between. However, for example, in endoscopic mucosal resection (EMR), since only one endoscope can be inserted into the body, the lesion cannot be lifted, and physiological saline is applied to the normal mucosa around the lesion with an injection needle. The lesion was lifted by injecting, and in that state, excision between the lesion and the normal mucous membrane was performed using a high-frequency knife or snare.
[0003]
However, in such a conventional method, the lesioned part could not be lifted to a sufficient position, and thus a sufficient excision part at the boundary between the lesioned part and the normal tissue could not be secured.
In addition, when the lesioned part has a flat shape, it may not be possible to create an excised part.
[0004]
Further, during the excision work, the already excised lesioned part may fall on the normal tissue, thereby obstructing the field of view by the endoscope, particularly when the lesioned part is large. For this reason, the excised part cannot be seen, and in order to remove it blindly, the normal part is damaged and complications such as perforation occur, blood vessels are damaged and major bleeding occurs. Since it cannot be confirmed and hemostasis cannot be achieved, serious complications may occur, and a safer treatment device has been demanded.
[0005]
Therefore, in order to solve these problems, the applicant of the present invention has a hooking member for hooking a lesion inside the human body, a magnetic guiding means made of a magnetic material connected to the hooking member, and an external part of the human body. is arranged, provided with magnetic induction means guiding device to power the magnetic induction means to generate a magnetic field, and power the magnetic induction means by a magnetic field magnetic induction means guiding device occurs, hooked to the hooked member Proposed a magnetic guidance means remote guidance system characterized by lifting the lesioned part (Japanese Patent Application No. 2002-268239).
[0006]
However, the magnetic guidance device used in this magnetic guidance means remote guidance system has a problem that it is a large and expensive device.
In addition, while observing a lesion with an endoscope, the direction of the body's top, bottom, left, and right may not be known, and the direction of the magnetic field by the magnetic guidance device may not be known, which requires skill in operation. There was a problem.
[0007]
OBJECT OF THE INVENTION
SUMMARY OF THE INVENTION An object of the present invention is to provide a gravity guidance device that can quickly and easily excise a lesion, is compact and low-cost, and is easy to operate.
[0008]
Summary of the Invention
The endoscope gravity guiding device of the present invention has a hooking member for hooking a target portion inside the target object , connecting means at both ends, and one connecting means for connecting to the hooking member. And a gravity guiding means made of a non-magnetic material that moves in accordance with gravity to move the target portion hooked on the hooking member by connecting to the other connecting means and moving according to gravity. It is a feature.
[0009]
The connecting means at both ends of the coupling tool can be constituted by hook portions.
[0010]
Moreover, it is practical that the hooking member is a clip that can be opened and closed and can clamp the target portion.
[0011]
The gravity guiding means may be a combination of a plurality of gravity guiding means constituent members.
[0012]
[0013]
[0014]
It is also possible to connect the gravity guiding means and the hooking member in advance outside the object.
[0015]
Some of the gravity-induced means, when attached to the distal end of the endoscope heavy force induction means, preferably provided with notches for the unobstructed field of view of the observation window of the endoscope .
[0016]
Further, a part of the gravity guide means, the cross-sectional diameter of the polymerization force guiding means, it is also preferred for the diameter of the outlet of the forceps channel provided at the distal end of the endoscope and substantially the same.
[0017]
The direction of the exit of the forceps channel of the endoscope may be directed away from the field of view of the observation window provided at the distal end portion of the endoscope.
[0018]
[0019]
[0020]
[0021]
[0022]
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.
1 to 3 show a gravity guiding device 1 (consisting of a gravity guiding means 2, a clip 3, and a connecting tool 4) to be inserted into the body.
The gravity guiding means 2 includes a substantially cylindrical main body 2a and an attachment 2c that forms a hole 2b between the main body 2a. The gravity guiding means 2 is made of a non-magnetic material, and specific examples of the non-magnetic material include gold, copper, aluminum, stainless steel (austenitic), brass, ceramic, glass, and the like.
[0024]
A clip (hanging member) 3 shown in detail in FIGS. 2 and 3 is a member for grasping and lifting a lesion (target site) in a patient (target) body. The clip 3 is made of an elastic material bent in a U-shape, and includes a pair of opening / closing pieces 3a urged away from each other by the elasticity thereof. A tip portion 3b is formed. The relative distance between the opening and closing pieces 3a is variable, and the opening and closing pieces 3a are provided with a ratchet member 3c that fixes the position after adjusting the distance between the opening and closing pieces 3a. As shown in FIG. 3, the ratchet member 3c includes a pair of engaging pieces 3c1, and engaging surfaces 3c2 that can be engaged and disengaged are formed on opposing surfaces of the engaging pieces 3c1. The ratchet member 3c has a function of preventing the deformation when the pair of opening / closing pieces 3a is elastically deformed in the direction of reducing the distance and holding the distance after adjusting the distance between the opening / closing pieces 3a.
[0025]
The connecting tool 4 connects the clip 3 and the gravity guiding means 2 and includes hook parts (connecting means) 4b and 4c at both ends of the main body part 4a. The clip 3 and the gravity guiding means 2 can be connected by hooking the hook parts 4b and 4c to the hole 2b of the gravity guiding means 2 and the hole 3d of the clip 3, respectively.
The main body 4a may be any of a rigid body, an elastic material, and a flexible material, and an elastic material such as a spring or rubber can be used. The length can be adjusted by providing a feeding mechanism on the hooks 4b and 4c. It may be. Note that the clip 3 and the gravity guiding means 2 may be directly connected without using the connector 4, or the clip 3 and the gravity guiding means 2 may be molded as a single body.
FIG. 4 shows a bed 5 on which a patient A is placed.
[0026]
FIG. 5 shows an endoscope 6 used for performing excision using the gravity guidance device 1 .
Since the structure of the endoscope 6 is well-known, detailed description thereof is omitted. However, as shown in FIG. 6, an air / water supply nozzle for supplying air and cleaning water to the distal end surface 7a of the insertion portion 7 to be inserted into the body. 8. An illumination window 9 for illuminating the excision part and its periphery, an observation window 10 in which an objective lens is arranged to observe the excision part and its periphery, and an outlet 11 of a forceps channel (not shown) are provided. . The forceps channel is provided in the insertion portion 7, and its inlet 12 a is formed on the end face of the forceps insertion opening projection 12.
[0027]
Next, the excision procedure of the lesion X using the gravity guidance device 1 will be described.
Prior to performing excision using the gravity guidance device 1 , first, as shown in FIG. 4, the patient A subjected to local anesthesia is laid on the bed 5.
Next, the overtube OT shown in FIGS. 6 to 12 is inserted into the body of the patient A from the mouth of the patient A, and the tip of the overtube OT is brought close to the lesion X in the organ B. Then, the insertion portion 7 of the endoscope 6 is inserted into the overtube OT, and the distal end portion thereof protrudes from the distal end of the overtube OT and is brought close to the lesioned portion X. As described above, when the distal end of the insertion portion 7 of the endoscope 6 is inserted into the organ B, an observation image in the organ B obtained from the observation window 10 is displayed on a television monitor (not shown).
[0028]
In this state, a tube-shaped treatment instrument (not shown) having an injection needle at the distal end is inserted from the inlet 12a of the forceps insertion opening projection 12, and the injection needle is protruded from the outlet 11 of the insertion portion 7. The injection needle is inserted from the periphery of the lesion X into the submucosa B1 of the organ wall and physiological saline is injected, and the lesion X is lifted from the proper muscle layer B2.
[0029]
Next, the gravity guiding means 2, the clip 3, and the connecting tool 4 are individually inserted into the organ B of the patient A according to the procedure described below.
[0030]
First, outside the body of the patient A, the clip 3 with the distal end portion 3b opened is fitted into the distal end opening portion of the flexible tube T made of an elastic material. The insertion port projection 12 is inserted into the forceps channel through the inlet 12a, and the tip of the insertion port is protruded from the outlet 11 of the forceps channel (see FIG. 6). Next, when the flexible tube T is operated to bring the clip 3 close to the lesioned part X, a pushing rod (not shown) inserted in advance in the flexible tube T is pushed forward, and the clip 3 is removed. Drop off from the flexible tube T and place near the lesion X (see FIG. 7).
[0031]
Next, the flexible tube T is pulled out from the forceps channel, and instead, the grasping forceps 13 shown in FIGS. 7 to 10 are inserted into the forceps channel, and the distal end portion thereof protrudes from the distal end surface 7 a of the insertion portion 7.
The gripping forceps 13 includes a metal gripping member 13b that can be freely opened and closed at the distal end of the flexible tube 13a, and an operation portion (not shown) at the base end of the flexible tube 13a. Yes, the gripping member 13b opens and closes when the operation unit is operated.
Then, by operating the grasping forceps 13 and tightening the ratchet member 3c of the clip 3, both the open / close pieces 3a of the clip 3 are closed, and the lesioned part X is grasped by the both end portions 3b (see FIG. 7).
[0032]
Furthermore, after the insertion part 7 of the endoscope 6 is once taken out of the body, the gripping member 13b in the open state is engaged with the hole 2b of the gravity guiding means 2, and then the gripping member 13b is closed and again, The insertion part 7 of the endoscope 6 is inserted into the overtube 10, and the gravity guiding means 2 and the distal end part of the insertion part 7 are brought close to the lesioned part X. When the grasping member 13b is released in this state, the gravity guiding means 2 is detached from the grasping member 13b and placed in the organ B (see FIG. 8).
[0033]
Next, the grasping forceps 13 is once pulled back to the outside of the endoscope 6, and the hook portion 4b of the connector 4 is locked to the grasping member 13b outside the body.
Then, as shown in FIG. 9, the grasping forceps 13 is inserted into the organ B through the forceps channel while the hook member 4b is hooked on the grasping member 13b. After inserting into the organ B, by operating the operation part of the grasping forceps 13, one hook part 4c is inserted into the hole 3d formed between the two open / close pieces 3a of the clip 3, and the other hook part 4b is inserted into the hole 3d. by multiplying each of the holes 2b of gravity guiding means 2, connecting the clip 3 and gravity guide means 2, constitute a gravity induced apparatus 1 in the organ B.
[0034]
Subsequently, the posture of the patient A is changed on the bed 5 while confirming the position of the gravity guiding means 2 on the television monitor so that the direction in which the lesion X is to be lifted is directed downward in the direction of gravity. Then, the gravity guiding means 2 moves by a desired amount in the direction away from the lesioned part X (downward in the direction of gravity) according to the weight of the earth, and the main body 4a of the connector 4 is in a tensioned state (see FIG. 10). In this way, since the weight of the gravity guiding means 2 is transmitted to the clip 3, the lesioned part X can be easily pulled down by a desired amount.
[0035]
Subsequently, after removing the grasping forceps 13 from the endoscope 6, as shown in FIG. 10, an incision tool such as a high-frequency knife 14 is inserted into the organ B from the forceps channel, and the lesioned part X together with the mucosa is attached to its end. Excise from X1.
When the excision work is completed as described above, the lesioned part X is attached to the clip 3, so that the lesioned part X is prevented from being lost. In order to collect the excised lesion X, the gravitational guiding means 2, the clip 3, the connector 4, and a part of the lesion X remaining connected are hooked with the grasping forceps 13, and the endoscope is left as it is. Remove 6 from the body. After that, treatments such as suturing and disinfection of the excised part are performed.
[0036]
As described above, if the gravity guiding device 1 is used, the lesioned part X can be moved (pulled down) in the direction of gravity, so that a sufficient excision part at the boundary between the lesioned part X and the normal tissue can be secured. Moreover, even if the lesioned part X has a flat shape, a sufficiently large excision part can be created, so that the lesioned part X can be easily excised. In addition, since the magnetic guidance device required in the magnetic guidance means remote guidance system is unnecessary, the entire device is compact and low-cost, and since it can easily grasp the vertical and horizontal directions in the organ B from the direction of gravity, it is skilled in operation. Is not required.
Furthermore, since the lesioned part X moves in the direction of gravity by the clip 3, it is possible to secure a sufficient excised portion and prevent the already excised lesioned part X from falling on the proper muscle layer B2.
Further, since the clip 3 can be arranged at an arbitrary position, the view of the endoscope is not hindered by the excised lesion part X.
[0037]
As shown in FIG. 11, if the posture of the patient A is changed to another state, the direction of gravity is changed, so that the lesion X can be moved in a direction different from that in FIG. 10.
[0038]
Next, a second embodiment of the present invention will be described with reference mainly to FIG.
The same members as those in the first embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
[0039]
As shown in FIG. 12, in this embodiment, the gravity guiding means GA is constituted by two gravity guiding means constituting members 20, 21.
One gravity guiding means constituting member 20 is provided with an engaging portion 20e that forms an engaging hole 20d between the main body portion 20a and the other gravity guiding means constituting member 21. The main body 21a is provided with a J-shaped engagement piece 21b. Each of the gravity guide means constituting members 20 and 21 is formed of a nonmagnetic material, and its mass is substantially the same as that of the gravity guide means 2 of the first embodiment.
[0040]
These gravity guiding means constituting members 20 and 21 are individually inserted into the organ B in the same manner as in the first embodiment, and the grasping forceps 13 are used in the organ B to engage the gravity guiding means 21. The mating pieces 21 b are connected to each other by engaging with the engaging holes 20 d of the gravity guiding means 20.
Alternatively, it binds advance both gravity induction unit components 20 and 21 in vitro, in this state, as in the first embodiment, by using the grasping forceps 13, both gravity induction unit components 20, 21 You may insert in the organ B together.
[0041]
In this way, the gravity guiding means GA in which the two gravity guiding means constituting members 20 and 21 are combined has a weight approximately twice that of the gravity guiding means 2 of the first embodiment. It becomes possible to raise more reliably.
[0042]
Next, a third embodiment of the present invention will be described with reference mainly to FIG.
The same members as those in the first embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
[0043]
As shown in FIG. 13, also in this embodiment, the gravity guiding means GA is constituted by using two gravity guiding means constituting members 22 and 23.
One gravitational guidance means constituting member 22 has a main body portion 22a made of a magnetic material such as iron, ferrite, martensite, or precipitation hardened stainless steel, and a hole 22b between the main body 22a. The attachment part 22c which forms is comprised.
The other gravity induction means constituting member 23 has a magnet (magnetic body) 23b embedded in its main body 23a. The body 23a of the gravity guiding member constituting member 23 may be a magnetic material or a non-magnetic material, and any of the gravity guiding member constituting members 22, 23 has the same mass as that of the first embodiment. It is almost the same as the mass of the gravity guiding means 2.
[0044]
These gravity guidance means constituting members 22 and 23 are individually inserted into the organ B in the same manner as in the first embodiment. Then, in the organ B, by using the grasping forceps 13, the two gravity induction means constituting members 22, 23 are brought close to each other, whereby the magnet 23 b is attracted to the main exterior 22 a, and the both gravity induction means constituting members 22, 23 are Become one.
Alternatively, it binds advance both gravity induction unit structure members 22 and 23 in vitro, in this state, as in the first embodiment, by using the grasping forceps 13, both gravity induction unit components 22, 23 You may insert in the organ B together.
[0045]
Even in such an embodiment, the gravity of the gravity guiding means GA, which is a combination of the two gravity guiding means constituting members 22, 23, is approximately twice that of the first embodiment. It is possible to move in the direction of gravity).
[0046]
Next, a fourth embodiment of the present invention will be described with reference mainly to FIGS.
The same members as those in the first embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
[0047]
The gravity guiding device 30 of the present embodiment is configured such that the gravity guiding means 31 and the clip 3 are integrated in advance through both end portions (connecting means) of a string-like connector 32.
When inserting the gravity guidance device 30 into the organ B, the endoscope 6 is pulled out of the body of the patient A, and the rear end 33a is welded to the forceps channel of the endoscope 6. And a hollow cylindrical guide sheath 33 in which the flexible pushing rod L is disposed is inserted in advance (see FIG. 15), and the distal end portion of the guide sheath 33 is inserted into the insertion portion 7. It protrudes from the front end surface 7a.
Thereafter, the gravity guiding device 30 is inserted into the distal end portion 33b of the guide sheath 33 so as to be in the state of FIG. 14A, so that the gravity guiding device 30 does not unexpectedly come off from the distal end portion 33b of the guide sheath 33. In this state, the insertion portion 7 of the endoscope 6 is inserted into the body of the patient A.
[0048]
The total length of the guide sheath 33 is set to be longer than the distance from the inlet 12 a of the forceps insertion opening projection 12 of the endoscope 6 to the distal end surface 7 a of the insertion portion 7. Therefore, as shown in FIG. 15, even if the guide sheath 33 is set on the endoscope 6 with the main body 31a of the gravity guiding means 31 protruding from the distal end surface 7a of the endoscope 6, the guide sheath 33 The rear end portion 33 a is located outside the forceps insertion opening projection 12. Further, a cut string 34 is provided at the rear end portion 33 a of the guide sheath 33. The cut string 34 is bonded to the outer peripheral surface of the guide sheath 33 along the circumferential direction, and its end 34a is lifted from the guide sheath 33 so that the operator can easily pull the cut string 34. It is integral with the sheath 33. When the operator pulls the cut string 34, the cut string 34 is removed along the circumferential direction of the guide sheath 33, so that the guide sheath 33 is divided into two parts at the part where the cut string 34 is removed (see FIG. 14B). ).
When the rear end portion 33a is pulled out after the separation, the flexible pushing rod L provided inside the guide sheath 33 appears. By moving the flexible pushing rod L in the axial direction, the gravity guiding means 31, the connector 32, and the clip 3 are pushed out from the distal end portion of the guide sheath 33 into the organ B of the patient A (FIG. 14 (c). )reference).
[0049]
FIG. 16 is a view showing the gravity guiding means 31, the coupling tool 32, and the clip 3 introduced into the organ B.
When the gravity guiding device 30 is arranged in the organ B in this way, the gripping forceps 13 is inserted into the forceps channel of the endoscope 6 and the clip member 3 is operated by operating the gripping member 13b, as in the first embodiment. By engaging with the lesioned part X and changing the posture of the patient A, the gravity guiding means 31 is moved using gravity to move the lesioned part X in the same direction. Thereafter, the grasping forceps 13 is taken out from the endoscope 6, an incision tool such as a high-frequency knife 14 is inserted into the organ B from the forceps channel, and the lesioned part X is excised from the end part X1 together with the mucous membrane.
[0050]
According to the present embodiment as described above, the gravity guiding device 30 can be inserted into the organ B in a state assembled in advance outside the body, so that resection can be performed more easily.
[0051]
Furthermore, the present invention can be implemented in various modifications other than the above-described embodiments.
As a modification of the gravity guiding means 2, 20 to 23, and 31, for example, as shown in FIG. 17, the mounting portion 41c of the gravity guiding means 41 is arranged so as to approach the end with respect to the main body portion 41a. 18, as shown in FIG. 18, a part of the main body portion 42 a of the gravity guiding means 42 is cut out (notched portion 42 d). Further, as shown in FIG. 19, the main body portion 43 a of the gravity guiding means 43 is The shape may be a rod shape whose cross-sectional diameter is substantially the same as the diameter of the outlet 11 of the forceps channel.
Further, as a modification of the endoscope 6, there is one in which the distal end portion of the forceps channel C faces downward as shown in FIG.
With these configurations, the observation field of view gravity induction means 2, 20 or 23 and 31 from the window 10, and 41 to for eliminating be narrowed by 43, ablation work more accurately and quickly perform so become.
[0052]
Further, as shown in FIG. 21, a part of the forceps channel C on the side of the forceps insertion opening projection 12 of the endoscope 6 may be configured as a narrowed portion 12b. With this configuration, the grasping forceps 13 holding the gravity guiding means 2, 20 to 23, 31, etc. at the tip is contrary to the operator's intention, and the gravity guiding means 2, 20 to 23, 31, etc. Can be prevented from falling into the body of the patient A due to its own weight.
[0053]
The present invention has been described above with reference to the above embodiment. However, the present invention is not limited to the above embodiment, and can be improved or changed within the scope of the purpose of the improvement or the idea of the present invention.
[0054]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a gravity guidance device that can quickly and easily excise a lesion, is compact and low-cost, and is easy to operate.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a gravity induction device according to a first embodiment of the present invention.
FIG. 2 is a diagram showing the shape of a clip.
FIG. 3 is a cross-sectional view of a ratchet member.
FIG. 4 is a side view showing a state where a patient is placed on a bed.
FIG. 5 is an overall view of an endoscope used when excising a lesioned part.
FIG. 6 is a diagram showing a procedure for introducing a gravity induction device into an internal organ.
FIG. 7 is also a diagram showing a procedure for introducing a gravity induction device into an internal organ.
FIG. 8 is also a diagram showing a procedure for introducing a gravity induction device into an internal organ.
FIG. 9 is a diagram showing a procedure for assembling a gravity induction device in an organ.
FIG. 10 is a diagram showing a lesion excision step using a gravity guidance device .
FIG. 11 is a diagram similarly showing a lesion excision step using a gravity guidance device .
FIG. 12 is a view similar to FIG. 10 of the second embodiment of the present invention.
FIG. 13 is a view similar to FIG. 10 of the third embodiment of the present invention.
FIGS. 14A and 14B are views showing a fourth embodiment of the present invention, in which FIG. 14A shows a state where magnetic guiding means , a coupling tool, and a clip are set on a guide sheath, and FIG. 14B shows a guide by pulling a cut string (C) is a figure which shows the state which pushed out the magnetic induction means , the coupling tool, and the clip by pushing the flexible pushing rod by the state which removed the rear end part side of the sheath.
FIG. 15 is a view showing an appearance of an endoscope in a state where gravity guiding means , a coupling tool, and a clip are set.
FIG. 16 is a diagram showing gravity guiding means , a connector and a clip introduced into the body.
17A and 17B are views showing a modification of the present invention, in which FIG. 17A is a front view in which the arrangement of the mounting pieces of the gravity guiding means is changed, and FIG. 17B is a perspective view thereof.
18A and 18B are views showing still another modified example, in which FIG. 18A is a front view in which a notch is provided in a part of the gravity guiding means , and FIG. 18B is a perspective view thereof.
FIG. 19 is a view showing still another modified example of the present invention, and is a view showing a gravity guiding means and a distal end portion of an endoscope.
FIG. 20 is a view showing still another modified example of the present invention, and is a view showing a gravity guiding means and a distal end portion of the endoscope viewed in cross section.
FIG. 21 is a diagram showing still another modified example of the present invention, and is a diagram showing a cross-sectional view of a part of an insertion portion of an endoscope.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Gravity guidance apparatus 2 Gravity guidance means 2a Main-body part 2b Hole 2c Attachment part 3 Clip (hanging member)
3a Open / close piece 3b Tip 3c Ratchet member 3c1 Engagement piece 3c2 Engagement tooth 4 Linkage 4a Main body 4b 4c Hook (connection means)
5 Bed 6 Endoscope 7 Insertion portion 7a Tip surface 8 Air / water supply nozzle 9 Illumination window 10 Observation window 11 Forceps channel outlet 12 Forceps insertion port projection 12a Inlet 12b Throttle portion 13 Grasping forceps 13a Flexible tube 13b Grasping member 14 High-frequency knife 20 Gravity guiding means constituting member 20a Main body portion 20b Hole portion 20c Mounting portion 20d Engaging hole 20e Engaging portion 21 Gravity guiding means constituting member 21a Main body portion 21b Engaging piece 22 Gravity guiding means constituting member 22a Main body portion 22b Hole portion 22c Attachment part 23 Gravity guidance means component 30 Gravity guidance device 31 Gravity guidance means 32 Connecting tool 33 Guide sheath 33a Rear end part 33b Tip part 34 Cut string 41 Gravity guidance means 41a Main body part 41b Hole part 41c Attachment part 42 Gravity guidance means 42a body part 42b hole part 42c attachment part 42d notch part 43 gravity guide means 4 3a body part 43b hole part 43c attachment part A patient (object)
B organ B1 submucosa B2 proper muscle layer GA gravity guiding means L flexible pushing rod OT overtube T flexible tube X lesioned part X1 end

Claims (9)

A hooking member for hooking a target part inside the target;
A connector having connection means at both ends, and one of the connection means is connected to the hooking member;
Gravity guiding means made of a non-magnetic material that is connected to the other connecting means and moves in the direction of gravity by moving according to gravity, and moving the target part in the direction of gravity;
A gravity guidance device for an endoscope, comprising: In gravity induction device for an endoscope according to claim 1, an endoscopic gravity induction device the connection means at both ends of the connecting device is a hook. In gravity induction device for an endoscope according to claim 1, an endoscopic gravity induction device in which the connector is made of stretchable material. In endoscopic gravity induction device according to any one of claims 1 to 3, the hooked members, open a endoscopic gravity induction device is a clip capable of sandwiching the target site. In gravity induction device for an endoscope according to any one of claims 1 to 4, the gravity-induced means, endoscopic gravity induction apparatus is obtained by combining a plurality of gravity-induced unit components. In endoscopic gravity induction device according to any one of claims 1 to 5, and the gravity-induced means and the hooking member, endoscopic gravity guidance device which has been previously connected at the object outside. In gravity induction device for an endoscope according to any one of claims 1 to 6, a portion of the gravity-induced means, when attached to the distal end of the endoscope insertion portion of the heavy force induction means, the inner An endoscope gravity guidance apparatus provided with a cutout portion so as not to obstruct the visual field of an observation window of an endoscope. Forceps in gravity induction device for an endoscope according to any one of claims 1 to 7, a part of the gravity-induced means, that the cross-sectional diameter of the polymerization force guide means, provided at the distal end of the endoscope Endoscopic gravity guidance device that is approximately the same diameter as the channel outlet. The endoscope gravity guidance device according to any one of claims 1 to 8 , wherein the direction of the exit of the forceps channel of the endoscope is away from the field of view of the observation window provided at the distal end portion of the endoscope. Gravity guidance device for endoscope in the direction.

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