JPH11299794A - Thread end fixing tool for organ lifter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the fixing strength of a mouthpiece member to thread to an extent with no trouble on connection strength by equipping the mouthpiece member into which the end of thread is fitted and a regulating part to fix thread to the mouthpiece member, in an organ lifter with thread for lifting stored in a sheath able to be paid out. SOLUTION: An organ lifter 6 and an organ borrer 7 are stored in a sheath 2 of the organ lifter with a long flexible sheath 2 insertable into a channel for inserting a treating tool of an endoscope. The organ lifter 6 is equipped with a rod 8 for engaging with a wall face of an organ and thread 9 connected to the rod 8. The thread 9 is formed into a loop and orderly inserted through two holes of the rod 8 and both ends are connected by a thread end fixing tool 20. The thread end fixing tool 20 has a pipe shape mouthpiece 15 and a protruding piece 16 formed in a shape suitable for winding the thread 9 is formed on an opening periphery part on one end of the mouthpiece 15 and the protruding piece 16 constitutes a regulating part 18 to which the thread 9 is wound up to stop falling off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thread end fixing device of an organ lifting device for lifting an organ such as the stomach or intestine.

[0002]

2. Description of the Related Art In recent years, a technique for surgically operating organs such as the stomach and intestine has been performed under laparoscopic observation. At this time, an organ lifting device that lifts a part of an organ has been proposed (see JP-A-8-150149). This organ lifting device punctures a puncture needle from the outside of the stomach wall in the abdominal cavity to a position near the diseased part, inserts the traction member into the stomach cavity through the puncture needle, expands the bar of the traction member, and holds the stomach wall. Then, a portion of the stomach wall is lifted.

[0003] When lifting an organ, it is necessary to correctly insert a puncture needle into a site near a lesion such as cancer and avoiding the lesion. However, the lesion is difficult to see from outside the stomach wall. Further, even if a part to be punctured can be selected, it is often difficult to puncture a predetermined part due to the movement of the stomach wall and the layer structure of the stomach wall. In addition, many instruments must be taken in and out of the abdominal cavity many times, which is troublesome and lengthens the procedure time.

[0004] In order to solve such inconveniences, Japanese Patent Application No. 8-324165 proposes an organ lifting device that approaches from inside the stomach. This organ lifting device is provided with a guiding sheath to be introduced into the stomach through a channel of an endoscope inserted through a digestive organ, and an organ lifting device and an organ wall perforating device inserted into the guiding sheath. You. The organ lifting device is composed of a rod and a thread, the rod has two longitudinally spaced holes through which the end of the thread passes, and the thread is formed in a loop shape. They are connected by sonic welding or by caulking or bonding with pipes.

[0005] The method of using the organ lifting device is to guide the distal end of the sheath introduced into the stomach to a target wall, first penetrate the organ piercing device through the wall, and then lift the organ protruding from the distal end of the sheath. The thread end of the tool is pulled into the abdominal cavity by an organ operating tool separately inserted from the abdominal wall side in the abdominal cavity, and the organ is lifted by locking a rod on the inner wall of the organ.

[0006]

Problems to be Solved by the Invention Japanese Patent Application No. 8-32416
The organ lifting device proposed in No. 5 connects both ends of the thread to form a thread in a loop shape, but if the means is ultrasonic welding, the strength in the direction of tearing the two thread portions is weak. It will be. In addition, if the knot is tied, the maximum outer diameter of the portion becomes too large or too loose, and becomes a resistance when moving in and out of the sheath. In addition, if it is simply caulking or bonding using a pipe, when pulling the organ lifting tool into the organ operating tool or when it gets caught on the tip of the organ operating tool, if the force is remarkable, the pipe will come off and enter the abdominal cavity. There is a risk of falling off.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a thread for an organ lifting device capable of improving the fixing strength of a base member to a thread so that there is no problem in connection strength. It is to provide an end fixture.

[0008]

(Means and Actions for Solving the Problems) (Means) The present invention relates to an organ lifting device which is housed in a sheath so as to be able to be extended and has a hanging thread, wherein the end of the thread is fitted inside. A yarn end fixing device comprising: a base member; and a regulating portion for fixing the yarn to the base member.

(Operation) By the cap member into which the end of the thread is fitted and the regulating portion for fixing the thread, the fixing strength of the cap member to the thread is improved, and the cap member is prevented from falling off.

[0010]

[First Embodiment] FIGS. 1 to 15
A first embodiment of the present invention will be described with reference to FIG. (Structure) FIG. 1 shows an organ lifting device 1 for lifting a stomach wall. The organ lifting device 1 includes a long and flexible sheath 2 that can be inserted into a treatment tool insertion channel of a gastric endoscope. The sheath 2 constitutes the insertion section 3 of the organ lifting device 1. An operation section 4 is provided at a proximal end of the sheath 2.

The sheath 2 is formed of a flexible and electrically insulating tube. The distal end portion of the sheath 2 has a smaller inner and outer diameter than other portions, and is narrowed.
Is formed.

An organ lifting device 6 and an organ piercing device 7 are housed in the sheath 2. The organ lifting device 6 includes a rod 8 for locking to a wall surface of the organ, and a thread 9 connected to the rod 8. The thread 9 is made of a thread made of a synthetic resin such as a silk thread or biocompatible nylon, or a thread made of a synthetic bioabsorbable. The rod 8 is a thin rod-shaped body, and two holes 10a and 10b through which the thread 9 passes are formed in the middle part of the rod 8 in the longitudinal direction (FIG. 3). The two holes 10a and 10b are arranged offset from each other in the longitudinal direction of the rod 8.

The yarn 9 is formed in a loop. That is, as shown in FIG. 3, the thread 9 is provided with two holes 10a, 1
0b, and both ends of the yarn 9 are connected by a yarn end fixing device 20 described later. That is, as shown in FIG.
Five. As shown in FIG. 5, a protruding piece 16 of a shape suitable for winding the thread 9 is provided at the opening edge of one end of the base 15.
Are formed integrally, and the protruding piece 16 projects at the center of the opening 17 at one end thereof, and intersects at right angles with the direction of the central axis of the base 15. That is, the protruding piece 16 is formed at both end portions 9a of the thread 9,
A restricting portion 18 is formed to project at an angle at which it can be hooked with respect to the longitudinal direction of 9b, and to wrap the yarn 9 to prevent the yarn 9 from coming off.

Then, as shown in FIG. 4, both ends 9a and 9b of the thread 9 are aligned in parallel in a pipe-shaped base 15, and one end 9a is folded back to form a half on the protruding piece 16. The end of the wound end 9a is wound on the other end 9b.
To the tip of the In this state, both ends 9a and 9b are adhered with the adhesive 19 in the base 15, and both ends 9a and 9b of the base 15 and the thread 9 are fixed.

By winding the yarn end of the yarn 9 through the regulating portion 18 in this manner, the mounting strength of the yarn 9 is improved, and the cap 15 can be prevented from falling off from the yarn 9. Further, since the end portions 9a and 9b of the thread 9 do not protrude from the outer periphery of the base 15, the catch in the sheath 2 can be reduced.

On the other hand, the organ piercing tool 7 comprises a conductive operating wire 11 and a rod-shaped electrode 12 attached to the tip of the operating wire. The operation wire 11 has a small-diameter operation wire 11a at the distal end and a large-diameter operation wire 11b at the base end.
There is. The small-diameter operation wire 11a is connected to the distal end of the large-diameter operation wire 11b by a connection pipe 13. A stepped end is formed at this connection portion, and the stepped end constitutes a pusher 14 for pushing out the organ lifting tool 6 from the mouth 5 of the sheath 2. Further, a pusher means for pushing out the organ lifting tool 6 from the sheath 2 using the organ punch 7 is provided.

An operation wire 11a on the distal end side of the organ punch 7
Is eccentrically connected to the proximal operation wire 11b. Further, the diameter of the rod-shaped electrode 12 is the
The electrode 12 is formed so as to be able to be inserted and removed from the mouth 5. Further, the operation wire 11
a is smaller than the diameter of the rod-shaped electrode 12, and the operation wire 11a
When passing through the mouth 5, the rod 8 and the thread 9 of the organ lifting tool 6 can pass beside the operation wire 11a.

In the sheath 2, the organ lifting device 6 is disposed beside the organ piercing device 7 with the rod 8 positioned behind the thread 9. Therefore, when the organ lifting device 6 is pushed out by the pusher 14, the thread 9 is pushed out from the mouth 5 of the sheath 2 first.

On the other hand, the operating section 4 has an electrically insulating guide rod 21 as an operating section main body, and a fixed ring 22 for fixing the base end of the sheath 2 is provided at the distal end of the guide rod 21. I have. An electrically insulating slider 23 is slidably mounted in the middle of the guide rod 21. The proximal end of the operation wire 11b of the above-described organ piercing tool 7 is connected to the slider 23. The operation wire 11 is attached to the slider 23.
Is provided with a connection pin (base) 24 which is electrically connected to a power supply cord (not shown) connected to a high-frequency power supply device (not shown).

Further, a stopper 25 is mounted at an intermediate portion of the guide rod 21 at a position more distal than the slider 23. The stopper 25 is provided so as to be able to move back and forth along the guide rod 21 and to be fixed at an arbitrary position thereof. The stopper 25 constitutes stopper means for regulating the end position when the slider 23 is advanced. When the stopper 25 is at the position shown in FIG. 1, only the electrode 12 protrudes from the mouth 5 of the sheath 2 with the slider 23 pushed out, and the rod 8 and the thread 9 of the organ lifting tool 6 do not protrude. When the stopper 25 is located at the position shown in FIG. 2, not only the electrode 12 but also the thread 9 of the organ lifting tool 6 protrudes from the mouth 5 of the sheath 2 with the slider 23 pushed out. .

As shown in FIG. 2, the small-diameter operation wire 11a has a bending habit, so that the small-diameter operation wire 11a is protruded from the thread 9 while protruding from the mouth 5 of the sheath 2. Leave. Note that the yarn 9 may have a bending habit of separating from the operation wire 11a. Finger hanging rings 26 and 27 are provided at the rear end of the guide rod 21 and both ends of the slider 23.
a and 27b are respectively formed.

FIG. 6 shows the organ operating tool 30. The organ operating tool 30 includes a snare 31, an injection needle-like puncture needle 32, and a mantle tube 33. The snare 31 includes an operation pipe 35 and a loop-shaped snare wire 36 attached to the tip of the operation pipe 35. The snare wire 36 is formed in a shape shown in FIG. 6 so as to be elastically spread by its own elastic force.
A narrow hook portion 37 is formed at the end of the loop.

The puncture needle 32 is made of a pipe material 41, and the snare 31 can be inserted into a hollow portion of the pipe material 41. The tip of the pipe material 41 has a puncture blade tip 42
The needle base 43 is provided at the base end of the puncture needle 32. The needle base 43 is formed with a tapered opening 44 communicating with the hollow portion of the pipe member 41. The needle base 43 is fitted and fixed to the tapered base end opening of the mantle tube 33, and is detachable therefrom. The needle base 43 has a rubber cap 4 for closing the opening 44 thereof.
5 is attached. The cap 45 is detachable from the needle base 43. Operation pipe 35 of snare 31
Penetrates the cap 45 airtightly.

The mantle tube 33 is made of a pipe material 47 fitted on the pipe material 41 of the puncture needle 32. A gripping member 48 is provided at the base end of the mantle tube 33. An operating section 49 is constituted by the gripping member 48 and the base end of the mantle tube 33. A plurality of slits 50 are formed on the front and back of the gripping member 48 of the operation unit 49 so as to sandwich and lock the thread 9 of the organ lifting tool 6. The puncture needle 32 and the mantle tube 33
Has a configuration in which the tip of the puncture needle 32 can be fixed even at a position retracted from the tip of the mantle tube 33.

(Operation) Next, referring to FIGS. 7 to 15,
A method of using the organ lifting device 1 will be described. First,
As shown in FIG. 7, the rigid endoscope 53 is inserted into the trocar 52 placed on the insufflated abdominal wall 51, while the gastric endoscope 55 is orally inserted into the stomach 54. The stomach is inflated by sending air into the stomach through the stomach endoscope 55.

The insertion section 3 of the organ lifting device 1 is inserted into the stomach 54 through the treatment tool channel of the endoscope 55 for stomach. At this time, the organ lifting device 6 and the organ piercing device 7 are housed in the sheath 2. Then, the user manipulates the stomach endoscope 55 to change the direction and position of the distal end of the insertion section 3 and guide the distal end of the sheath 2 to the vicinity of the lesion 56 generated on the inner wall of the stomach 54. Thereafter, the sheath 2 is pushed in at the proximal side of the gastric endoscope 55, and the distal end of the sheath 2 is pushed into the stomach and pressed against the stomach wall. As a result, a portion corresponding to the position where the distal end of the sheath 2 abuts on the outer wall surface of the stomach 54 swells toward the abdominal cavity 57. The state of the bulging portion 58 protruding into the abdominal cavity 57 is observed with a rigid endoscope 53, and the presence of blood vessels in the stomach 54, adhesion with other organs, etc., or a possibility that there is no risk of damaging peripheral organs is observed. Check if there are any.

The stomach endoscope 55 and the rigid endoscope 53 both
Again, it is checked whether the planned puncturing position is appropriate. Thereafter, as shown in FIG. 8, the insertion portion 3 is slightly retracted, and the distal end of the sheath 2 is slightly separated from the inner wall surface of the stomach 54. Further, in the operation unit 4, the slider 23 is moved forward to protrude the electrode 12 from the mouth 5 of the sheath 2. At this time, the stopper 2
The position 5 is in the retracted position shown in FIG. 1 and only the distal end portion of the electrode 12 protrudes straight from the mouth 5 of the sheath 2. When the electrode 12 is pressed against the stomach wall while applying a high frequency to the electrode 12 by operation with a foot switch or the like, as shown in FIG. 9, only the portion of the stomach wall hit by the electrode 12 is incised by the high frequency incision. , Insertion part 3
Sheath 2 penetrates the stomach wall.

Next, when the position of the stopper 9 in the operation section 4 is changed to the forward position shown in FIG. 2 and the slider 23 is pushed forward, the electrode 12 completely protrudes from the mouth 5 of the sheath 2 as shown in FIG. , An operation wire 1 with a smaller diameter
The tip of 1a also protrudes. The pusher 14 of the operation wire 11 also advances, pushes the rod 8 of the organ lifting tool 6, and pushes out the thread 9 from the mouth 5 of the sheath 2. At this time,
The thread 9 bends away from the electrode 12.

On the other hand, as shown in FIG. 11, the snare 31 is pulled into the puncture needle 32, and the mantle tube 33 of the organ operating tool 30 is drawn.
The puncture needle 32 protruding from the tip of the abdominal wall 51 is pierced. After this puncture, the puncture needle 32 is pulled into the mantle tube 33 as shown in FIG. Further, the snare wire 36 protrudes from the tip of the mantle tube 33. Then, while observing with the rigid endoscope 53, the snare wire 36 captures the vicinity of the distal end portion of the thread 9 of the organ lifting tool 6 having the base 15.

Next, as shown in FIG.
At 6, the leading end of the thread 9 of the organ lifting device 1 is held, and the sheath 2 of the organ lifting device 1 is pulled back into the treatment instrument channel of the endoscope 55 for stomach. The rod 8 of the organ lifting device 6 remains in the stomach 54, and the thread 9 of the organ lifting device 6 penetrates the abdominal wall 51.

Further, the portion of the thread 9 is further pulled into the mantle tube 33 of the organ operating tool 30, and the snare wire 36 is further pulled from the proximal end of the mantle tube 33, and the thread 9 is pulled out. The proximal end opening of the mantle tube 33 is covered with a cap 45 and closed.
The thread 9 has penetrated the cap 45. Then, as shown in FIG. 15, the distal end of the mantle tube 33 is brought close to or applied to the stomach wall, and the leading end of the thread 9 is connected to the plurality of slit portions 50 of the gripping member 48 at the proximal end of the mantle tube 33. And wrap it around to secure it. As a result, the thread 9 of the organ lifting tool 6 is connected to the organ operating tool 30, and the rod 8 is locked on the inner wall of the stomach 54. Then, as shown in FIG. 15, a part of the stomach wall is lifted.

Then, the operator operates the mantle tube 3 of the organ operating tool 30.
Hold the part 3 in your hand and manipulate the stomach wall 54,
The portion to be locally resected is guided to an automatic suture device with a cutter inserted into the stomach via a trocar and positioned. Then, both sides of the resection line are sutured by a series of operations of the automatic suturing device. Immediately after that, the stomach wall is cut along the resection line with a cutter of the automatic suturing device, and the stomach including the lesion 56 is resected. The rod 8 of the organ lifting device 6 is confined inside the excised stomach part, and the thread 9 is pulled out of it. The thread 9 is pinched and cut with forceps or the like, and the excised stomach portion is stored in a collection bag and taken out of the body through a collection trocar.

[Second Embodiment] A second embodiment of the present invention will be described with reference to FIGS. FIG. 16 is a perspective view of a thread end fixing portion of the organ lifting device, and FIG.
FIG. 7 is a cross-sectional view of the part B in FIG.

(Structure) The thread end fixing device of the organ lifting device is passed in a state where both ends 9a and 9b of the thread 9 formed in a loop shape as in the first embodiment described above are aligned in parallel and overlapped. And a regulating member 61 made of, for example, a metal rod bent into a U-shape, which enters the inside of the base 15. The diameter of the regulating member 61 and twice the diameter of both ends 9a and 9b of the thread 9 (2
(The sum of the diameters of the bases) is larger than the inner diameter of the base 15.

Then, one end 9a of the thread 9 is folded back, and this folded portion is half-wrapped around the U-shaped central portion of the regulating member 61, so that the end 9a and the regulating member 61
The portion of (1) forms a restricting portion that is caught on the edge of the opening 15a of the base 15.

(Operation) As shown in FIG. 16, when the both ends of the thread 9 are connected by the base 15, the following procedure is performed. That is, the thread 9 is passed through the base 15 in a state where both ends 9a and 9b are aligned in parallel and overlapped. One end 9a of the thread 9 is protruded from the base 15, and the protruding portion is folded back and wrapped around the center of the U-shape of the regulating member 61 by half winding, and the folded tip is inserted into the base 15 again. To the tip of the other end 9b left in the base 15. Thereafter, both ends of the U-shape of the regulating member 61 are inserted into the base 15.

As shown in FIG. 17, the thread 2 is
The two metal bars with the diameter of the book and the U-shape are inserted, and are in a spatially dense state. The end of the end 9a of the thread 9 wound around the center of the regulating member 61 by half winding is in a state of facing the end of the other end 9b. Then, the ends 9a and 9b are arranged in a state where they are aligned in parallel and overlapped,
In this state, it is adhered by the adhesive 62 in the base 15 and is tightly hardened. Furthermore, the sum of the diameter of the regulating member 61 and twice the diameter of both ends 9 a and 9 b of the thread 9 is larger than the inner diameter of the base 14. For this reason, both ends 9 a of the base 15 and the thread 9,
9b is integrally fixed.

(Effect) In this embodiment, the regulating member 61
One end 9a of the thread 9 is wound around the
The attachment strength of the thread 9 to the thread 5 is improved, and the cap 15 can be prevented from falling off the thread 9. In addition, since the regulating member 61 composed of the thread 9 and the metal rod enters the base 15, the adhesive 6
The number of filled portions is reduced, and a sufficient connection strength can be realized with a smaller amount of the adhesive 61. The end of the thread 9 is
Does not protrude significantly outside the outer periphery of the organ lifting device 1, so that the catch of the organ lifting device 1 in the sheath 2 can be reduced.
The appearance is also beautiful.

(Third Embodiment) A third embodiment of the present invention will be described with reference to FIGS. FIG. 18 is a perspective view of a thread end fixing portion of the organ lifting device, and FIG.
FIG. 19A is a cross-sectional view of a portion A of FIG. 18 and FIG.
FIG. 19B is a cross-sectional view of a portion of a surface B in FIG.

(Structure) The thread end fixing device of the organ lifting device here is the same as that of the first embodiment described above, and the both ends 9a and 9b of the loop-shaped thread 9 are aligned in parallel and overlapped. 18, has one end 9a of the thread 9 inserted into the base 15 from one end opening 71a of the base 15, as shown in FIG. The end 9 that has come out of the other end opening 71b of the base 15
a is again inserted into the base 15 through the other end opening 71b and passed through the one end opening 71a. As a result, a loop portion 72 exposed from the other end opening 71b of the base 15 is formed at one end 9a of the thread 9. On the other hand, the other end 9b of the thread 9 is inserted into the mouthpiece 15 from one end opening 71a of the mouthpiece 15, and the end 9b of the thread 9 coming out of the other end opening 71b.
b is passed through the loop portion 72 of the end portion 9a and entangled.

As shown in FIG. 19 (a), in the base 15, the two ends 9a and one end 9b of the thread 9 are stacked in a bale-like shape and are in the closest state in which the base 9 is inscribed. On the other hand, as shown in FIG. 19 (b), a total of two ends 9a and one end 9b is provided on the B-side portion where the end 9a and the end 9b of the loop 72 are entangled. Three things are arranged in a straight line. The total length l of the three end portions 9a, 9a, 9b arranged in a straight line in this manner is larger than the inner diameter of the base 15, thereby fixing the thread 9 to the base 15. It constitutes a regulation unit. Incidentally, an adhesive (not shown) may be injected into the inside of the base 15 as necessary, filled and solidified to increase the regulating force.

(Operation) When a force in the direction of arrow C in FIG. 18 is applied to the ends 9a and 9b of the yarn, the ends 9a and 9b of the yarn are shifted in the direction of C with respect to the base 15. However, when the loop portion 72 of the end portion 9a comes to the position of the surface B, the length l in which the three end portions 9a, 9a, 9b are arranged is larger than the inner diameter of the base 15, so that it can be shifted further. Disappears.
Therefore, the end portions 9a and 9b of the yarn can be securely held by the base 15.

(Effect) The parts for fixing the end portions 9a and 9b of the yarn need only be the pipe material, and since the shape is simple, the cost is low. In addition, the thread can be securely fixed. [Modification of Third Embodiment] As shown in FIG. 20, the same operation and effect can be obtained even if the ends 9a and 9b of the two thread portions to be fixed do not have the same diameter. Further, as shown in FIG. 21, there is provided a regulating portion that forms a loop at each of the end portions 9a and 9b of the two yarns to be fixed, and entangles one loop portion 72a into the other loop portion 72b. Even with this configuration, the same operation and effect as described above can be obtained.

[Fourth Embodiment] A fourth embodiment of the present invention will be described with reference to FIGS. FIG. 22 is a perspective view of a thread end fixing portion of the organ lifting device, and FIG.
FIG. 23 is a sectional view taken along a line AA in FIG. 22.

(Structure) The thread end fixing device 20 here is a bundled state in which both end portions 9a and 9b of the thread of the organ lifting device are aligned and overlapped in a slender pipe shape, for example, a metal base. 15 and both ends 9a, 9b of the thread in the base 15
Is fixed by caulking with a tab 81 as a restricting portion. Tabs 81 are provided symmetrically at two locations on the left and right sides of the intermediate peripheral wall of the base 15. Tab 8
1 may be provided as a pair or more. These tabs 81 are shown in FIG.
As shown by, it is formed by making a cut 82 with a part cut off such as “U-shaped” or “U-shaped” in the peripheral wall of the base 15. The tab 81 has a free end 81a on the proximal side (opening side), and a distal end side (opening side) of the tab 81 is a part 81b which is integrally fixed to the base 15 at a cut-off portion.

Then, the two ends 9a and 9b of the yarn are aligned in parallel and overlapped, inserted into the base 15 from the opening on the tip side (rod side), and pulled out from the opening on the hand side (opposite side of the rod). After this insertion, the free ends 81a of the left and right tabs 81 are pressed and bent inward. The tab 81 is deformed so as to bite deeper into the side surfaces of the thread ends 9a and 9b as the portion is closer to the hand side.

Although not shown, an adhesive is poured into the gap between the die and the yarn end to eliminate the gap and prevent the yarn end from being displaced in the die.

(Operation) The tab 81 is deformed greatly inward toward a portion closer to the free end 81a and penetrates deeper into the side portions of the yarn ends 9a and 9b, so that the yarn ends 9a and 9b are pulled in the rod side direction. And the free end 81a of the tab 81 tries to bite into the ends 9a and 9b of the thread 9 further.
5 secures more tightly to the ends 9a, 9b of the thread. Therefore, the base 15 does not come off from the thread 9.

(Effect) The tab 81 as the regulating portion is the base 1
5 is formed by making a cut in a part of the wall portion, and the tab 81 is deformed inward so that both end portions 9 of the thread are formed.
a, 9b, the base 15 is fixed to the end portions 9a, 9 of the thread.
The outer diameter of the base 15 does not become large when it is fixed to b.
Further, since the tab 81 can be fixed only by deforming the tab 81 through the end portions 9a and 9b of the thread in the base 15, the assembling property is good.

[Fifth Embodiment] A fifth embodiment of the present invention will be described with reference to FIGS. FIG. 24 is a perspective view of a thread end fixing portion of the organ lifting device, and FIG.
FIG. 25 is a sectional view taken along a line BB in FIG. 24.

(Structure) The thread end fixing device 20 here is a bundled shape in which both end portions 9a and 9b of the thread of the organ lifting device are aligned in parallel and stacked, and is formed into an elongated pipe-like metal base 15 for example. The end portions 9a and 9b of the thread are swaged in the base 15.

A plurality of cuts 85 are provided on the intermediate peripheral wall of the base 15 around the entire circumference. The cuts 85 are in the shape of a “C” (angle), and each of the cuts 85 forms a tab 86 having a free end 87 that is sharp toward the proximal side (opening side) of the base 15. There is no cut on the tip side (rod side) of the tab 86, and the base 1
5 is fixed.

Each of the tabs 86 presses and bends the proximal side (opening side) of the base toward the inside of the base 15 so that the end portions 9a and 9 of the thread inserted into the base 15 as in the fourth embodiment.
Cut into the side of b.

A constricted portion 88 having a reduced inner diameter of the pipe is formed on an intermediate peripheral surface portion of the base 15 on which the tab 86 is formed. Therefore, the tip of the tab 86 is attached to the end 9a of the thread,
9b is designed to bite into the side surface more firmly.

(Operation) Since the tabs 86 are provided on the entire circumference of the base 15, even if the end portions 9a and 9b of the yarn are rotated or twisted in the base 15, any one of the tabs 86 will surely bite.

(Effect) The end 9a of the thread with respect to the base 15
It is not necessary to worry about the insertion position of 9b, and its assembly is easy.

Sixth Embodiment A sixth embodiment of the present invention will be described with reference to FIGS. 26 is a perspective view of a thread end fixing device of the organ lifting device, FIG. 27 is a perspective view of a thread end fixing device of the organ lifting device, and FIG. 28 is a main portion of a thread end fixing device of the organ lifting device. It is sectional drawing.

(Structure) The thread end fixing device 20 here is a bundled state in which both end portions 9a and 9b of the thread of the organ lifting device are aligned and stacked in parallel, and is fitted into the elongated pipe-shaped base 15. In this case, both ends 9a and 9b of the yarn are caulked by the base 15.

As shown in FIG. 26, both ends 9a and 9b of the thread of the lifting device are bundled in parallel, and these are inserted from the opening on the tip side (rod side) of the base 15 for a long and thin pipe.
Pull out the tip from the opening on the near side (opposite side).

After passing both ends 9a and 9b of the thread through the base 15, as shown in FIG. 27, the hand side (opening side) of the base 15
Is crimped inward over the entire circumference to form a swaged portion 91 (restriction portion). The tip 91a of the caulking portion 91 cuts into the side peripheral surface of the end portions 9a and 9b of the yarn, and restricts the end portions 9a and 9b of the yarn from coming off and fixes them.

Although not shown, an adhesive is poured into a gap between the base 15 and the end portions 9a and 9b of the yarn to eliminate the gap, and the end portions 9a and 9b of the yarn in the base 15 are removed. It does not shift.

(Operation / Effect) The caulking portion 91 formed at the opening edge on the hand side of the base 15 has two ends 9a and 9b of the yarn.
As the end portions 9a and 9b of the thread are pulled toward the tip (rod side) with respect to the base 15, the end of the caulking portion 91 is attached to the end portions 9a and 9b of the thread. Because of the bite, the ends 9a and 9b of the thread do not fall off from the base 15. Further, since the base 15 is filled with the adhesive, it is not necessary to worry about the insertion positions of the thread ends 9a and 9b with respect to the base 15, and the assembly is easy.

[Seventh Embodiment] A seventh embodiment of the present invention will be described with reference to FIGS. 29 is a perspective view before the connection, FIG. 30 is a cross-sectional view of a part along the line XX in FIG. 29 in an assembled state, and FIG. 31 is a perspective view in an assembled state.

(Structure) The thread end fixing device 20 here is a slender pipe-shaped, for example, metal, into which a bundled state in which both end portions 9a and 9b of the thread of the organ lifting device are aligned in parallel and stacked. It has a base 15 and a cap 92 as a restricting member made of, for example, a resin such as nylon, which is attached to the opening 15a on the hand side of the base 15. Both ends 9a and 9b are welded, and the base 15 is fixed by caulking and regulating. Cap 92 is cap 1
The head 93 covering the hand side opening 15a is provided with two claws 94a and 94b which can be pushed into the base 15.
The base 15 has an inner diameter capable of accommodating a loop-shaped yarn made of, for example, nylon, which is formed by arranging and stacking both end portions 9a and 9b in parallel. The head 93 of the cap 92 is slightly larger than the inner diameter of the proximal opening 15a of the base 15, and
5 is a large diameter portion having the same or smaller outer diameter as the outer diameter. Also, the two claws 94a, 94b of the cap 92
Is a base 1 into which both ends 9a and 9b of the thread of the lifting tool are inserted.
5 can be pushed into the left and right gaps 95.

(Operation) As shown in FIG. 29, a bundled state in which both ends 9a and 9b of the thread of the organ lifting tool are aligned and bundled in parallel is inserted from the rod-side opening of the base 15.
The thread ends 9a and 9b are aligned so that the insertion ends do not protrude from the proximal opening 15a of the base 15. Next, two claws 94a, 94 of the cap 92 are inserted into the left and right gaps 95 in the base 15 into which the both ends 9a, 9b of the thread are inserted.
b, and insert the head 93 into the opening 1 near the base of the base 15.
5a. At this time, since the large-diameter head 93 is larger than the inner diameter of the base 15, the head 93 does not enter the base 15 and be buried. A pair of claws 94a, 9 extending from the head 93 of the cap 92 are provided.
4b, the base 15 and both ends 9 of the thread as shown in FIG.
a, 9b formed between the two gaps 95a, 95b
Is pushed into each.

As shown in FIG. 31, the cap 92 is
After being fitted into the cap 5, the cap 92 is welded to the ends 9a, 9b of the thread by welding, and the entire periphery of the cap 15 is crimped by crimping.
9b is connected and fixed.

(Effect) Since the cap 92 having a large diameter portion larger than the inside diameter of the base 15 is welded to the thread portion,
The cap 92 can be prevented from falling off from both ends 9a and 9b of the yarn.

The material of the thread and the cap used is not limited to nylon, but may be any material that can be thermally welded to each other.

Eighth Embodiment Referring to FIGS. 32 and 33, an eighth embodiment of the present invention will be described. FIG. 32 is a perspective view before connection, and FIG. 33 is a cross-sectional view of a part along the line YY in FIG. 32 in an assembled state.

(Structure) The yarn end fixing device 20 here has an elongated tubular base 15, and the inner diameter of the base 15 is such that both ends 9a and 9b of the yarn of the organ lifting tool are aligned in parallel and overlapped. It is dimensioned so that a bundled bundle can be inserted. The yarn, especially both ends 9a and 9b, are made of a thermally deformable material, for example, a resin such as nylon.

(Operation) As shown in FIG. 32 (a), both ends 9a and 9b of the yarn are aligned and bundled in parallel.
From the rod side opening. Ends 9a, 9 of yarn
The insertion end of b protrudes slightly from the proximal opening end 15a of the base 15. Next, the proximal open end 1 of the base 15
The portion protruding from 5a is heated and crushed, and FIG.
As shown in (b), a large diameter portion 98 (restriction portion) having a diameter larger than the inner diameter of the base 15 is formed. As shown in FIG. 33, the large-diameter portion 98 formed by the thermal deformation integrally engages with the proximal opening edge of the base 15.

(Effect) Since the large-diameter portion 98 having a larger diameter than the inner diameter of the base 15 is formed and used as a regulating portion, the base 15 can be prevented from falling off from both ends 9a and 9b of the yarn. In addition, since both ends 9a and 9b of the yarn are simply inserted into the base 15 and deformed by heating, these assembling operations are easy,
It can be manufactured at low cost.

[Ninth Embodiment] A ninth embodiment of the present invention will be described with reference to FIGS. FIG. 34 is an exploded perspective view of the yarn end fixing device immediately before assembly, FIG. 35 is a perspective view of the yarn end fixing device after assembly, and FIG. 36 is a cross-sectional view taken along the line ZZ in FIG. FIG.

(Structure) The thread end fixing device 20 has a long and narrow pipe-shaped base 15 having a rectangular cross section. The base 15 has a hinge portion 101 formed on one side portion over the entire length to form the other side portion 1.
02 can be opened. As shown in FIG. 34, both ends 9 of the thread aligned and bundled in parallel in the opened base 15.
a, 9b can be installed. A pillar 103 is formed in the base 15 so as to half-wind one end 9a of the yarn.

(Operation) As shown in FIG. 34, both ends 9a and 9b of the yarn are arranged in parallel in a base 15 having an open side, and one end 9a is attached to a pillar 103 in the base 15. The end of the wound end 9a is opposed to the end of the other end 9b. Next, as shown in FIGS. 35 and 36, the side of the opened base 15 is closed, and the base 15 is closed.
To fix both ends 9a, 9b of the yarn to the base 15. In addition to this caulking, an adhesive may be filled in the base 15 and solidified.

(Effect) The both ends 9a and 9b of the yarn are
By winding the base 15 around the inner pillar 103, the strength against the base 15 coming off is improved. Another effect is that the side portions in the longitudinal direction are opened and both ends 9a, 9b
Is attached, so that the assembling work is easier than passing the thread through the pipe-shaped base 15. As another effect, the base 15 can be opened by opening the side portion, so that the bonding operation is easy. Another advantage is that the ends of the yarn do not appear in the appearance, so that the appearance is beautiful.

<Supplementary Note> (First Group) An organ lifting device which is housed in a sheath so as to be able to be unreeled and has a hanging thread, comprising a base member having an end portion of the thread inserted therein, and a regulating section for fixing the thread to the base member. A yarn end fixture. 2. 2. The yarn end fixing device according to claim 1, wherein two yarn ends are passed through the base member, and at least one of the yarn ends goes around the regulating portion and returns to the base member again. 3. One end of the thread is accommodated in the base member, and the other end of the thread passes through the base member, orbits around the regulating portion, and returns to the base member again. 3. The thread end fixing device according to claim 2, wherein the fixing device is housed in a member. 4. 3. The yarn end fixing device according to claim 2, wherein the restricting portion is a member having an angle with respect to a center axis of the die member. 5. 5. The yarn end fixing device according to claim 4, wherein the restricting portion is formed by bending a part of a base member. 6. 5. The thread end fixing device according to claim 4, wherein the restricting portion is a U-shaped wire, and is fitted into the base member with a U-shaped foot and a thread. 7. 3. The yarn end fixing device according to claim 2, wherein the base member has an outer diameter smaller than an inner diameter of the sheath.

(Second Group) In the organ lifting device which is housed in the sheath so as to be able to be fed out and has a hanging thread, a base (pipe) through which the end of the thread passes is provided, and at least one thread end is provided with a base (pipe). ), Forming a loop after passing through the thread end fixing device. 2. In the above structure, at least one other thread end passes through at least one loop in the loop formed by at least one thread end, and three or more thread ends pass through the inside of the base with respect to the inner diameter of the base (pipe). The yarn end fixing device according to claim 1, wherein the yarn portion is inscribed in a fitted state. 3. 3. The thread end fixing device according to claim 1, wherein the number of thread portions passing through the inner diameter of the mouthpiece (pipe) is three. 4. 2. The thread end fixing device according to claim 1, wherein the number of thread portions passing through the inner diameter of the mouthpiece (pipe) is four. 5. 2. The yarn end fixing device according to claim 1, wherein the two yarn portions to be fixed have the same diameter. 6. 2. The yarn end fixing device according to claim 1, wherein the two yarn portions to be fixed have different diameters.

(Third group) 1. In the sheath, in the organ lifting device that is housed so as to be able to be extended and has a hanging thread, the thread passes through the inside,
A thread end fixing device comprising: a base for fitting the thread; and a tab that cuts into a side surface of the thread. 2. 2. The thread end fixing device according to claim 1, wherein one or more tabs having a free end on a side opposite to the rod are provided on a part of the base. 3. 2. The thread end fixing device according to claim 1, wherein a plurality of tabs are provided on at least one part of the base so as to surround the base. 4. 3. The thread end fixing device according to claim 2, wherein a portion provided with a tab of the base is narrowed narrowly. 5. 2. The yarn end fixing device according to claim 1, wherein an end of the base opposite to the rod is deformed inward so as to bite into a side surface of the yarn and fixed.

[0080]

As described above, according to the present invention, there is provided a base member in which the end of the thread is fitted, and a restricting portion for fixing the thread, whereby the fixing strength of the base to the thread is improved. Can be improved, and the base member can be prevented from falling off. In addition, generally, as in the above-described embodiment, the connector has a compact configuration, and the connecting portion can smoothly advance and retreat in the sheath.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a state in which only electrodes of a device for lifting an organ according to a first embodiment protrude from a distal end of a sheath.

FIG. 2 is an explanatory view of a state in which an electrode and an organ lifting device of the apparatus for lifting an organ according to the first embodiment are protruded from a distal end of a sheath.

FIG. 3 is an explanatory diagram of the organ operating tool according to the first embodiment.

FIG. 4 is an explanatory diagram of a procedure for using the organ lifting device according to the first embodiment.

FIG. 5 is an explanatory view of a procedure for using the organ lifting device according to the first embodiment.

FIG. 6 is an explanatory view of a procedure for using the organ lifting device according to the first embodiment.

FIG. 7 is an explanatory diagram of a procedure for using the organ lifting device according to the first embodiment.

FIG. 8 is an explanatory diagram of a procedure for using the organ lifting device according to the first embodiment.

FIG. 9 is an explanatory view of a procedure for using the organ lifting device according to the first embodiment.

FIG. 10 is an explanatory diagram of a procedure for using the organ lifting device according to the first embodiment.

FIG. 11 is an explanatory diagram of a procedure for using the organ lifting device according to the first embodiment.

FIG. 12 is an explanatory diagram of a procedure for using the organ lifting device according to the first embodiment.

FIG. 13 is an explanatory view of a procedure for using the organ lifting device according to the first embodiment.

FIG. 14 is an explanatory diagram of a procedure for using the organ lifting device according to the first embodiment.

FIG. 15 is an explanatory view of a procedure for using the organ lifting device according to the first embodiment.

FIG. 16 is a perspective view of a thread end fixing device of the organ lifting device according to the second embodiment.

FIG. 17 is a sectional view of a part B in FIG. 16;

FIG. 18 is a perspective view of a thread end fixing device of the organ lifting device according to the third embodiment.

FIG. 19A is a cross-sectional view of a portion of a plane A in FIG.
(B) is sectional drawing of the part of the B surface in FIG.

FIG. 20 is a perspective view of a thread end fixing device of a modification of the organ lifting device according to the third embodiment.

FIG. 21 is a perspective view of a thread end fixing device according to another modification of the organ lifting device according to the third embodiment.

FIG. 22 is a perspective view of a thread end fixing device of the organ lifting device according to the fourth embodiment.

FIG. 23 is a sectional view taken along a line AA in FIG. 22;

FIG. 24 is a perspective view of a thread end fixing device of the organ lifting device according to the fifth embodiment.

FIG. 25 is a sectional view taken along a line BB in FIG. 24;

FIG. 26 is a perspective view of a thread end fixing device of the organ lifting device according to the sixth embodiment.

FIG. 27 is a perspective view of a thread end fixing device of the organ lifting device according to the sixth embodiment.

FIG. 28 is a sectional view of a main part of a thread end fixing device of the organ lifting device according to the sixth embodiment.

FIG. 29 is an exploded perspective view of the organ lifting device according to the seventh embodiment before the thread end fixing device is connected.

30 is a cross-sectional view of a part along an XX line in FIG. 29 in an assembled state.

FIG. 31 is a perspective view showing an assembled state of a thread end fixing device of the organ lifting device according to the seventh embodiment.

FIG. 32 is a perspective view showing the assembling order of the thread end fixing device of the organ lifting device according to the eighth embodiment.

FIG. 33 is a sectional view of a portion taken along line YY of FIG. 32;

FIG. 34 is an exploded perspective view of the organ lifting device according to the ninth embodiment when a thread end fixing device is assembled.

FIG. 35 is a perspective view of the assembled state of the thread end fixing device of the organ lifting device according to the seventh embodiment.

FIG. 36 is a sectional view of a portion taken along line ZZ in FIG. 35;

[Explanation of symbols]

2 ... sheath, 6 ... organ lifting tool, 7 ... organ piercing tool, 8
... Rod, 9 ... Thread, 15 ... Base, 16 ... Protrusion, 18 ... Regulator, 20 ... Thread end fixing device.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Satoshi Honma 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd.

Claims (1)

[Claims] 1. An organ lifting device, which is housed in a sheath so as to be able to be fed out and has a hanging thread, a cap member having an end of the thread inserted therein, and a regulation for fixing the thread to the cap member. And a thread end fixing device.