JP4338440B2 - Magnetic guidance means guidance system for endoscope - Google Patents

Description

[0001]
【Technical field】
The present invention relates to an endoscope magnetic guidance means guidance system used when excising a lesion 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. The tissue is excised. However, for example, in endoscopic mucosal resection (EMR), since only one endoscope can be inserted into the body, the lesion cannot be lifted, and the normal mucous membrane around the lesion cannot be lifted with an injection needle. Saline was injected to raise the lesion, and in that state, a high-frequency knife or snare was used to perform excision between the lesion and the normal mucous membrane.
[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 could not be confirmed and hemostasis could not be achieved, serious complications could occur, and a safer device was required.
[0005]
Therefore, in order to solve these problems, the applicant of the present invention has a clip for grasping a lesion in an internal organ of the human body, a magnetic guiding means (magnetic anchor) made of a magnetic body connected to the clip, and a human body. is arranged outside, and a magnetic induction means guiding device to power the magnetic induction means to generate a magnetic field, giving power to the magnetic induction means by a magnetic field magnetic induction means guiding device occurs, is gripped by the clip Proposed a magnetic guidance means guidance system characterized by lifting a target site (lesioned portion, etc.), and a patent application has been filed (Japanese Patent Application No. 2002-268239).
[0006]
Using this magnetic guidance means guidance system, a tongue-like mucosa is formed by cutting into the mucosa around the lesion, the tongue-like mucosa is gripped by multiple clips, and magnetic induction is made to each clip via a connecting string. It is possible to connect the means and move the plurality of magnetic induction means by a magnetic field generated by the magnetic induction means induction device. In this way, if each magnetic guiding means is moved in a desired direction using a plurality of magnetic guiding means , the lingual mucosa can be lifted in the desired direction.
[0007]
However, as described above, since the magnetic guiding means has a property of being attracted to the magnetic field, if the cross-sectional area at the position where the magnetic flux in the magnetic field intersects the built-in wall is small, all the magnetic guiding means have a narrow range of the built-in wall. Concentrate on. Therefore, it is difficult to move each magnetic guiding means in a desired direction, and as a result, it is difficult to lift the lingual mucosa in a desired direction.
[0008]
Further, since the gripping force by the clip used in this patent application is not so large, the clip may be detached from the tongue-like mucous membrane when the power applied to the magnetic guiding means is large. If the clip comes off from the lesion in this manner, it will be necessary to grip the lesion again with the clip, so it takes a long time to treat the lesion and increase the burden on the operator and the patient. End up.
[0009]
OBJECT OF THE INVENTION
The object of the present invention is to accurately move the magnetic guiding means in a desired direction, and to allow the retaining attachment member connected to the magnetic guiding means to smoothly penetrate the target portion inside the target object. In addition, it is an object of the present invention to provide an endoscope magnetic guidance means guidance system that can be surely prevented from coming off after penetration.
[0010]
Summary of the Invention
The endoscope magnetic guiding means guiding system according to the present invention includes a magnetic guiding means made of a magnetic material that can penetrate a target portion inside an object, and one end connected to the magnetic guiding means, and the target portion A flexible connecting string that can penetrate the connecting string, a retaining attachment member that is connected to the other end of the connecting string and prevents the other end of the connecting string penetrating the target part from coming out of the target part, and disposed outside the target object And a magnetic guiding means guiding device for generating a magnetic field, and the magnetic guiding means guiding device arranged in the object, moved inside the object by the magnetic force generated by the magnetic guiding means guiding device, and the magnetic field generated from the entire surface And a magnetic sheet made of a magnetic material that attracts and holds the guiding means .
[0011]
It is preferable that the area of the magnetic sheet is made larger than the cross-sectional area of the magnetic flux generated from the magnetic guiding means guiding device at the position where it intersects the object.
[0012]
[0013]
Furthermore, it is preferable that a plurality of connection bodies of the retaining attachment member and the magnetic induction means are provided.
[0014]
The magnetic induction means guiding device generates a magnetic force by a generated magnetic field and moves the magnetic induction means in a predetermined direction by the magnetic force, and the magnetic induction member is arranged in a specific plane. It is practical to have an in-plane moving mechanism that moves along the U-shaped frame member and a one-way moving mechanism that relatively moves the U-shaped frame member in a direction perpendicular to the one plane. is there.
[0015]
Furthermore, with a removably inserted into the forceps channel of the endoscope, while holding the magnetic induction means, said magnetic guide means is passed through to the target site, and the magnetic induction means a predetermined position of the magnetic sheet It is preferable to have a grasping forceps that can be guided to the position.
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
[0023]
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
The magnetic guiding means guiding system of this embodiment includes a magnetic guiding device 10 (magnetic guiding means 11, a stopper member 12, and a connecting string 13), an endoscope 20, and penetration of the magnetic guiding means 11 into the tongue-like mucous membrane Y. It comprises a grasping forceps 30 that performs operations, a magnetic sheet S, and a magnetic guiding means guiding device 40 that controls the magnetic guiding device 10 to be attracted outside the body (which exerts a magnetic force on the magnetic guiding means 11).
[0025]
First, the configuration of the magnetic induction device 10 will be described with reference to FIG.
The magnetic induction means 11 is a needle-like member formed as a needle portion 11a having a sharp tip, and is entirely formed of a ferromagnetic material. Specific examples of the magnetic material include magnets such as platinum magnets, rare earth magnets, terbium / dysprosium / iron alloys, in addition to pure iron and iron alloys.
[0026]
The stopper member (prevention attachment member) 12 is a disk-like member, and an attachment fitting 12a is projected from one surface (back surface) thereof. One end of a flexible connecting string 13 is firmly connected to the mounting bracket 12a, and the other end of the connecting string 13 is firmly connected to the base end of the magnetic induction means 11. The stopper member 12 and the magnetic induction means 11 are connected via the via. For example, a surgical suture, a fishing line, or a metal wire can be used as the connecting string 13.
[0027]
FIG. 2 shows an endoscope 20 used for performing resection using a magnetic guidance means guidance system.
Since the structure of the endoscope 20 is well known, detailed description thereof is omitted. However, an air / water supply nozzle (not shown) for sending air and cleaning water to the distal end surface 22 of the insertion portion 21 to be inserted into the body, an excision portion. And an illumination window for illuminating the periphery thereof (not shown), an observation window (not shown) in which an objective lens is disposed immediately after observing the excision and the periphery thereof, and an outlet 23 of the forceps channel C (not shown) 10 and 11) are provided. The forceps channel C is formed in the insertion portion 21, and its inlet 24 a is formed on the end surface of the forceps insertion port protrusion 24. The diameter of the outlet 23 of the forceps channel C is smaller than the diameter of the stopper member 12.
[0028]
The grasping forceps 30 shown in FIGS. 3 and 4 are inserted into and removed from the forceps channel C of the endoscope 20.
The grasping forceps 30 has a pair of grasping claws 31 and 32 that can be opened and closed at the distal end thereof, and by operating an operation unit (not shown) provided at the proximal end, the grasping claws 31 and 32 are It opens and closes between the fully closed state shown in FIG. 3 and the fully opened state shown in FIG.
[0029]
Next, with reference to FIGS. 5 and 6, description will be given of a configuration of the magnetic induction means guiding device 40 for sucking controls the magnetic guiding device 11 in the outside of the patient's body A.
A pair of XY stages (one-way moving mechanisms) 42 and 42 are disposed on both sides of the bed 41 having a floor plate 41a on which the patient A is placed. The pair of XY stages 42 reciprocate linearly along the longitudinal direction of the bed 41 so that the longitudinal positions of the both 42 and 42 are always the same. Further, above the bed 41, a frame / rail (two-plane moving mechanism) composed of two rails 44 and 45 that are substantially U-shaped in front view and are parallel to each other in a plane orthogonal to the longitudinal direction of the bed 41. 43, and both ends of the frame / rail 43 are fixed to the left and right XY stages 42, respectively. Inside the rail 44, (on a magnetic force to the magnetic induction means 11) for the magnetic induction means 11 for suction control in vitro of the magnetic induction apparatus 10 magnetic induction member 46 is mounted slidably, magnetic induction member 46 Can move along the rail 45 between the left and right XY stages 42. The magnetic induction member 46 is obtained by fixing an electromagnet 47 having a structure in which a coil is wound around an iron core on a base 48, and the electromagnet 47 always faces the patient A side (see FIG. 5). The magnetic induction member 46 may be a combination of a permanent magnet and an electromagnet, or a combination of two or more permanent magnets and electromagnets.
[0030]
A counterweight 49 for maintaining the weight balance of the entire frame / rail 43 is slidably mounted on the rail 45 on the rail 45 outside the frame / rail 43. The counterweight 49 changes its position according to the position of the magnetic induction member 46. For example, when the magnetic guide member 46 is located on the front side of the patient A, the counterweight 49 is located on the back side of the patient A, and when the magnetic guide member 46 is on the back side of the patient A, the counterweight 49 is Located on the front side of the patient A, the entire frame / rail 43 is balanced in weight.
The above magnetic induction member 46, XY stage 42 described, the magnetic induction means guiding device 40 by a frame / rail 43 is constituted.
[0031]
Next, the excision procedure of the lesion X using the magnetic guidance means guidance system will be described.
Prior to performing excision using the magnetic guiding means guiding system, first, the patient A subjected to local anesthesia is laid on the floor plate 41a of the bed 41 as shown in FIGS. At this time, the XY stage 42 is operated so that the longitudinal direction position of the bed 41 of the frame / rail 43 is substantially the same position as the head A1 of the patient A, and the magnetic induction member 46 and the counterweight 49 are set to a predetermined position. Keep it in the place.
Next, the XY stage 42 is operated to place the frame / rail 43 on the front side of the patient A, and the magnetic guiding device 46 is moved along the frame / rail 43 to start excision of the magnetic guiding member 46. Position at the hour position (see FIG. 6).
[0032]
Next, a flexible overtube (not shown) is inserted into the body from the mouth of the patient A, and the tip of the overtube is inserted into the organ B (see FIGS. 11, 15, and 16) (target). It is made to approach the lesioned part X inside. Then, the endoscope 20 is inserted into the overtube, the distal end portion of the insertion portion 21 is projected from the distal end of the overtube, and is brought close to the lesioned portion X (not shown). As described above, when the distal end of the insertion portion 21 of the endoscope 20 is inserted into the organ B, an observation image in the organ B obtained from the observation window of the endoscope 20 is displayed on a television monitor (not shown). .
[0033]
Next, a tube-like treatment instrument (not shown) having an injection needle is inserted into the distal end portion from the inlet 24a of the forceps insertion port projection 24, and the injection needle is protruded from the outlet 23 of the insertion portion 21, so that the injection needle Is inserted into the submucosal layer B1 of the organ wall from around the lesioned part X, and physiological saline is injected, and the lesioned part X is lifted from the proper muscle layer B2.
Next, a high-frequency knife 50 as shown in FIG. 12 (the endoscope 20 is not shown in FIG. 12) is inserted into the forceps channel C of the endoscope 20, and the distal end 50a is inserted into the mucous membrane near the lesion X. An incision is made to form a lingual mucosa (target site) Y in the vicinity of the lesion X (see FIGS. 12, 15 and 16).
[0034]
Next, the endoscope 20 is removed from the body of the patient A, the high-frequency knife 50 is removed from the forceps channel C, the grasping forceps 30 is inserted into the forceps channel C, and the distal end thereof protrudes from the distal end surface 22 of the endoscope 20. Let
Subsequently, the magnetic sheet S made of the magnetic material shown in FIG. 7 is rolled up as shown in FIG. Then, as shown in FIG. 9, gripping is performed with the gripping claws 31 and 32 of the gripping forceps 30 protruding from the distal end of the endoscope 20 (not shown in FIG. 9), and protruding backward from the forceps insertion port protrusion 24. The proximal end portion (not shown) of the forceps 30 is pulled backward to completely store the magnetic sheet S in the forceps channel C as shown in FIG. The area of the magnetic sheet S (the state shown in FIG. 7) in the fully open state is set larger than the cross-sectional area at the position where the magnetic flux generated in the magnetic induction member 46 intersects the organ B of the magnetic field.
[0035]
Next, as shown in FIG. 11, the insertion portion 21 of the endoscope 20 is inserted again into the organ B, and the distal end of the grasping forceps 30 protrudes from the endoscope 20 and is disposed outside the body of the patient A. The magnetic field generated by the magnetic induction member 46 (not shown in FIG. 11) is strengthened. When the gripping claws 31 and 32 are opened and the magnetic sheet S is released from the gripping claws 31 and 32, the magnetic sheet S moves upward in FIGS. 11 and 12 by the magnetic force generated from the magnetic guiding device 46. It is attracted to the inner wall of B (see FIG. 12) and magnetized, and a magnetic field is generated from the entire surface of the magnetic sheet S. As a result, a magnetic field larger than the magnetic field generated from the magnetic induction device 46 can be generated in the organ B.
[0036]
Next, as shown in FIG. 13, the endoscope 20 is taken out from the body of the patient A again, and the magnetic guiding means 11 of the magnetic guiding device 10 is gripped by the gripping claws 31 and 32 of the gripping forceps 30. Further, by pulling the proximal end portion of the grasping forceps 30 rearward, as shown in FIG. 14, the grasping claws 31, 32, the magnetic guiding means 11, and the connecting string 13 are accommodated in the forceps channel C, and the stopper member 12 The rear surface is brought into contact with the distal end surface 22 of the insertion portion 21.
[0037]
Then, as shown in FIG. 15, the insertion portion 21 of the endoscope 20 is inserted again into the organ B, and the grasping forceps 30 is moved relative to the endoscope 20, thereby being connected to the grasping claws 31 and 32. The string 13 and the stopper member 12 are pushed into the organ B. Further, by operating the grasping forceps 30, the needle portion 11a of the magnetic guiding means 11 is pierced into the lingual mucosa Y and penetrates the lingual mucosa Y. When the needle portion 11a of the magnetic guiding means 11 protrudes to the opposite side of the tongue-like mucosa Y (upper side in FIG. 15), the magnetic guiding means 11 is once released from the gripping claws 31, 32 and protrudes to the opposite side of the tongue-like mucosa Y. The leading end side of the magnetic guiding means 11 is gripped again by the gripping claws 31 and 32, the gripping forceps 30 are moved, and the magnetic guiding means 11 is completely penetrated to the magnetic sheet S side of the lingual mucosa Y. Then, since the magnetic induction means 11 is attracted to the magnetic sheet S side by the magnetic force generated from the magnetic sheet S, the connecting string 13 is tensioned and the tongue-shaped mucous membrane Y is moved to the magnetic induction means side. At this time, when the grasping forceps 30 are operated and the magnetic guiding means 11 is guided to a predetermined position of the magnetic sheet S and brought into contact therewith, the magnetic guiding means 11 is held at that position by the magnetic force generated from the magnetic sheet S. Is done.
[0038]
Further, the endoscope 20 is taken out of the body of the patient A, and a magnetic guidance device 10 prepared separately is attached to the endoscope 20 according to the same procedure as described above, and this magnetic guidance means 11 is performed according to the same procedure as described above. Is pierced through the tongue-like mucous membrane Y and further brought into contact with a predetermined position of the magnetic sheet S. As shown in FIG. 16, in the present embodiment, a total of three magnetic induction devices 10 are used.
[0039]
As described above, when the magnetic induction means 11 of the three magnetic induction devices 10 are held in contact with different portions of the magnetic sheet S, the tongue-like mucosa Y is generated in the connecting string 13 of each magnetic induction device 10. The resultant tension is applied. Therefore, by changing the contact position of each magnetic guiding means 11 with the magnetic sheet S using the grasping forceps 30 and changing the resultant force, the lingual mucosa Y is moved in a predetermined direction by a predetermined distance. be able to.
[0040]
Then, if the lingual mucosa Y is moved in a predetermined direction by a predetermined distance, the lesioned part X surely moves in the desired direction by a desired distance, so that the boundary between the lesioned part X and the normal tissue is sufficient. A size excised portion is formed. Therefore, the lesioned part X can be excised together with the mucous membrane from one end side with the high-frequency knife 50 (not shown in FIG. 16), and when the high-frequency knife 50 reaches the opposite end, It is completely excised from the mucosa (not shown).
At the time of excision work with the high-frequency knife 50, the position of the tip 50a of the high-frequency knife 50 becomes easier to confirm as the excision area is expanded.
[0041]
When the excision work is completed as described above, the lesioned part X separated from the normal tissue maintains an integrated state with the magnetic guidance device 10, and thus the lesioned part X is prevented from being lost. To recover the excised diseased tissue X, after withdrawal of the high-frequency knife 50 from the forceps channel C of the endoscope 20 again inserted into the forceps channel C the grasping forceps 30, the grasping forceps 30, one of the magnetic induction Holding the means 11, the endoscope 20 is pulled out from the body as it is, and the lesioned part X is taken out of the body together with the magnetic guidance device 10. Thereafter, treatments such as suturing and disinfection of the excised part are performed.
[0042]
As described above, in this embodiment, the magnetic sheet S is used to generate a magnetic field from the entire surface of the magnetic sheet S, and the magnetic guiding means 11 is brought into contact with a predetermined position of the magnetic sheet S. And moving distance can be adjusted with high accuracy.
If the area of the magnetic sheet S is further increased, the moving direction and moving distance of the lesion X can be adjusted more accurately.
[0043]
Further, since the lesioned part X can be moved by a sufficient distance in a desired direction, the excision part at the boundary between the lesioned part X and the normal tissue can be easily and surely secured with a sufficient size. 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.
[0044]
Furthermore, since the lesioned part X is lifted by the penetrating attachment member 12, a sufficient excised part can be secured, and the already excised lesioned part X can be prevented from falling on the proper muscle layer B2.
Moreover, since the stopper member 12 and the connecting string 13 can be arranged at arbitrary positions, the field of view of the endoscope 20 is not hindered by the excised lesioned part X.
[0045]
Further, since the magnetic guiding means 11 is a needle-like member, it can smoothly penetrate the tongue-like mucous membrane Y. Moreover, when the magnetic guiding means 11 and the connecting string 13 penetrate the tongue-like mucous membrane Y, the stopper member 12 causes the magnetic guidance. Since the means 11 and the connecting string 13 are reliably prevented from coming off the tongue-shaped mucosa Y, even if the magnetic field generated from the magnetic sheet S is strengthened, the magnetic guiding device 10 can be reliably prevented from coming out from the tongue-like mucosa Y.
[0046]
When the magnetic guiding member 46 is moved, the position of the magnetic sheet S is also changed, so that the moving direction and moving distance of the tongue-like mucous membrane Y can be adjusted in this way as well.
[0047]
Next, a second embodiment of the present invention will be described with reference to FIG.
The same members as those in the first embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
[0048]
The magnetic guiding means 61 made of a ferromagnetic material of the magnetic guiding device 60 of the present embodiment has a sharp needle portion 61a at the tip, and is easily gripped by the gripping claws 31 and 32 of the gripping forceps 30. Has a holding hole 61b.
Further, the stopper member (prevention attachment member) 62 does not include the mounting bracket 12a included in the stopper member 12 of the first embodiment, and one end of the connecting string 13 is directly fixed to the stopper member 62. Yes.
[0049]
This magnetic guiding device 60 is inserted into the organ B using the endoscope 20 in the same manner as in the first embodiment, and the magnetic guiding means 61 penetrates the lingual mucosa Y by the grasping forceps 30. The magnetic sheet S is held in contact with a predetermined position.
[0050]
With such a magnetic guidance means guiding system of the present embodiment, the same effects as in the first embodiment, since the magnetic induction unit 61 is made easily grasped by the grasping forceps 30, the magnetic induction means 61 The penetrating operation to the tongue-like mucous membrane Y and the guiding operation to the magnetic sheet S can be easily performed as compared with the first embodiment.
[0051]
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. For example, as shown in FIG. 18, the stopper member (prevention attachment member) 72 may be a ring-shaped member that can be easily gripped by the gripping claws 31 and 32 of the gripping forceps 30. The magnetic sheet S may be made of a permanent magnet.
[0052]
【The invention's effect】
As described above, according to the present invention, the magnetic guiding means can be accurately moved in a desired direction, and the retaining mounting member connected to the magnetic guiding means can be smoothly passed through the target portion inside the target object. In addition, it is possible to reliably prevent removal after penetration.
[Brief description of the drawings]
FIG. 1 is an overall view of a magnetic induction device according to a first embodiment of the present invention.
FIG. 2 is an overall view of an endoscope.
FIG. 3 is a view showing a distal end portion of a grasping forceps in a state where a grasping claw is closed.
FIG. 4 is a view showing a distal end portion of a grasping forceps in a state where a grasping claw is opened.
FIG. 5 is a view of a bed on which a patient to be excised from a lesion is placed and a magnetic guidance means guidance device as seen from the patient's head side.
FIG. 6 is a side view of a bed on which a patient is placed and a magnetic guiding means guiding device.
FIG. 7 is a perspective view showing the entire magnetic sheet.
FIG. 8 is a view showing a state in which a magnetic sheet is wound.
FIG. 9 is a diagram illustrating a state in which a grasping forceps inserted into a forceps channel of an endoscope is gripping a magnetic sheet outside the endoscope.
FIG. 10 is a cross-sectional view of the endoscope showing a state in which the grasping forceps inserted into the forceps channel of the endoscope are pulled into the forceps channel while holding the magnetic sheet.
FIG. 11 is a diagram showing a state in which a wound magnetic sheet is inserted into an organ by an endoscope.
FIG. 12 is a diagram showing a state in which a magnetic sheet is attracted to the organ wall and a tongue-like mucosa is formed on the mucous membrane in the organ by a high-frequency knife.
FIG. 13 is a cross-sectional view of an endoscope showing a state in which a grasping forceps inserted into a forceps channel of the endoscope grasps a magnetic guiding device .
FIG. 14 is a cross-sectional view of the endoscope in a state where the magnetic force guiding means and the connecting string are pulled into the forceps channel by pulling the grasping forceps inserted into the forceps channel of the endoscope toward the proximal end side. FIG.
FIG. 15 is a view showing a state in which the magnetic guiding means held by the holding forceps approaches a lingual mucosa formed in the vicinity of an affected part of an organ.
FIG. 16 shows that the magnetic guiding means of the three magnetic guiding devices are passed through the tongue-like mucous membrane and brought into contact with the magnetic sheet, and then the magnetic guiding means is held in contact with the magnetic sheet by using the magnetic guiding means guiding device. It is a figure which shows the state which is pulling the lingual mucous membrane.
FIG. 17 is an overall view of a magnetic induction device according to a second embodiment of the present invention.
FIG. 18 is a front view showing a modified example of the stopper member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Magnetic guidance apparatus 11 Magnetic guidance means 11a Needle part 12 Stopper member (prevention attachment member)
12a mounting bracket 13 connecting string 20 endoscope 21 insertion portion 22 distal end surface 23 forceps channel outlet 24 forceps insertion port projection 24a inlet 30 gripping forceps 31 gripping claws 32 gripping claws 40 magnetic guiding means guiding device 41 bed 41a floor plate 42 XY stage (One-way moving mechanism)
43 Frame / rail (moving mechanism in one plane)
44 rail 45 rail 46 magnetic induction member 47 electromagnet 48 base 49 counterweight 50 high frequency knife 50a tip 60 magnetic induction device 61 magnetic induction means 61a needle portion 61b gripping hole 62 stopper member (prevention attachment member)
72 Stopper member (prevention mounting member)
A Patient A1 Head B Organ (Subject)
B1 submucosa B2 proper muscle layer C forceps channel S magnetic sheet X lesioned part Y tongue-like mucous membrane (target site)

Claims (5)

Magnetic induction means made of a magnetic material that has a needle shape that can penetrate the target part inside the target object,
One end connected to the magnetic induction means, a flexible coupling string that can penetrate the target site,
A retaining attachment member that is connected to the other end of the connecting string and prevents the other end of the connecting string penetrating the target part from slipping out of the target part,
A magnetic guiding means guiding device arranged outside the object and generating a magnetic field;
A magnetic sheet made of a magnetic material that is disposed in the object and moves inside the object by the magnetic force of the magnetic field generated by the magnetic guiding means guiding device, and attracts and holds the magnetic guiding means by the magnetic field generated from the entire surface. When,
An endoscope magnetic guidance means guidance system comprising: 2. The endoscope magnetic guiding means guiding system according to claim 1, wherein the magnetic sheet has a larger area than a cross-sectional area of a magnetic flux generated from the magnetic guiding means guiding device at a position where it intersects the object. Magnetic guidance means guidance system for mirrors. In the endoscope magnetic guidance means guiding system according to claim 1 or 2 ,
An endoscope magnetic guiding means guiding system comprising a plurality of the retaining attachment members, the magnetic guiding means, and the connecting string connecting body. In the endoscope magnetic guiding means guiding system according to any one of claims 1 to 3 ,
The magnetic guiding means guiding device is:
A magnetic induction member that generates a magnetic force by a generated magnetic field and moves the magnetic induction means in a predetermined direction by the magnetic force;
An in-plane movement mechanism for moving the magnetic induction member along a U-shaped frame member arranged in a specific plane;
A one-way moving mechanism for relatively moving the U-shaped frame member in a direction orthogonal to the one plane;
A system for guiding magnetic guidance means for an endoscope. In the endoscope magnetic guiding means guiding system according to claim 4 ,
further,
It can be inserted into and removed from the forceps channel of the endoscope,
While holding the magnetic induction means, said magnetic guide means is passed through to the target site, and magnetic endoscopic the magnetic induction means comprise a grasping forceps can be guided to a predetermined position of the magnetic sheet Guidance means guidance system.

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