JPH09182756A - Intracorporeal tract suturing instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure secure suturing of the breakage parts of an intracorporeal tract by a simple signal touch operation and perfectly prevent incorrect suturing of the breakage parts of the intracorporeal tract from occurring. SOLUTION: This intracorporeal tract suturing instrument is composed of a first tract retaining member 1 and a second tract retaining member 2 for pressing the 1 apped part of the breakage parts of an intracorporeal tract of an esophagus from one or both sides using forceps. In addition, plural pieces of retaining needle 15 and their inserting holes are alternately provided in an annular shape on the inside face between the mutually opposed first tract retaining member 1 and second tract retaining member 2, and a needle tip part 18 with an uneven part 17 is provided on the tip part of each of the retaining needles 15. Further, a pair of guide holes and a pair of guide pins 21, 22 are alternately arranged along the outer peripheral face mutually opposed to each other of the first tract retaining member 1 and the second tract retaining member 2. Besides, either of the paired guide pins 21, 22 is longer than the other of the paired guide pins 21, 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly used for cutting an affected part of a body duct such as an esophagus by cutting it with forceps, and cutting parts of the body duct such as the esophagus to the outside. The present invention relates to a disposable intracorporeal conduit suturing device which is wound in a circular shape and overlapped with each other, and the overlapping portions of the cut portions are sutured by pressing with forceps from both sides or one side.

[0002]

2. Description of the Related Art Conventionally, a body conduit suture tool attached to a distal end of a suture instrument is inserted into a body conduit such as an esophagus, and the affected part of the body conduit is inhaled by air from the inside to At the same time as pressing the affected part of the overlapped portion wound in a collar shape on the inside of the passageway from both sides or one side with the first conduit holder and the second conduit holder, at the same time between the cut parts of the body conduit. The polymerized portion was sutured with a stapler.

[0003]

SUMMARY OF THE INVENTION However, a suture tool for a body conduit is inserted into a body conduit such as an esophagus, the affected part of the body conduit is sucked with air from the inside, and a collar-like shape is formed inside the body conduit. Since the affected part of the overlapped part wound on the body was cut by the first conduit holder and the second conduit holder, the inside of the body conduit such as the esophagus became narrower, and the affected part of the body conduit was Not only is the operation of cutting with the one conduit holder and the second conduit holder cumbersome, but also the cut parts of the body conduit cannot be reliably sewn together, and the cut parts of the body conduit are There was a problem of suture failure.

Therefore, the present invention has been made in view of the above-mentioned viewpoints, and it is
After cutting the affected part of the body conduit by cutting it with forceps, the cut parts of the body conduit are rolled outward and overlapped,
The cut portion of the body conduit can be surely sewn by a simple one-touch operation of pressing the overlapped portion of the cut portions of the body conduit from both sides or one side with forceps. (EN) Provided is an intracorporeal duct suture instrument capable of completely preventing a suture failure between them.

[0005]

In order to achieve the above-mentioned object, the present invention is to cut the affected part of the body duct such as the esophagus by cutting it with forceps, and then cut the cut parts of the body duct. Is rolled up in a flange shape and overlapped with each other, and is composed of a first conduit holder and a second conduit holder that press the overlapping portion of the cut portions of the body conduit from both sides or one side with forceps, At the outer edge of the inner side surface of the first conduit holder and the second conduit holder that are opposite to each other, an appropriate length is provided to hold the cut portions of the body conduit in a brim shape along the annular shape. With multiple holding needles of
Insertion holes into which the holding needles are inserted are respectively planted so that these positions are alternately displaced along the annular shape, and the distal end portions of the respective holding needles are inserted into the body conduit. The needle tips with uneven portions for expanding and securely holding the cut portions in a brim are provided respectively, and the outer peripheral surfaces of the first conduit holder and the second conduit holder are opposed to each other. , A pair of guide holes that serve as a guide when suturing the overlapped part of the cut parts of the internal duct with forceps from both sides or one side during surgery of the internal duct such as the esophagus, and each of these guide holes A pair of guides to be fitted are respectively provided so as to be arranged in a staggered manner along the outer peripheral surface, and the length of one of the pair of guide pins is set to the length of the other pair of guide pins. It is set longer than the length.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, as an embodiment of the present invention, a diseased part of a body duct such as an esophagus is cut and cut off, and the cut parts of the body duct are spread outward in a brim-like state. The state of stitching with one touch will be described with reference to the drawings.

The body suture device of the present invention is shown in FIGS.
As shown in FIG. 3, after the affected part of the body conduit P such as the esophagus is cut and separated with forceps, the cut parts P1 and P2 of the body conduit P are cut off.
Wrap each other outside in a brim shape and lay them on top of each other
It is composed of a first conduit holding body 1 and a second conduit holding body 2 that press the overlapping portions of the cut portions P1 and P2 from each other with forceps from both sides or one side.

That is, the first conduit holding body 1 holds the cutting part P1 outwardly in a brim-like shape with the vicinity of one cutting part P1 of the cut body conduit P being inserted. ,
The large-diameter annular pressing-side holding portion 3 is arranged on the outer circumference and the small-diameter annular receiving-side holding portion 4 is arranged on the inner circumference so that they are concentrically adjacent to each other, and the pressing-side holding portion 3 and the receiving side are arranged. The holding portion 4 is divided into semi-annular shapes, and one end of the closing side is supported openably and closably on the support piece 5 through the shaft pin 6 in the direction of opening and closing the annular shape. The engaging portion 7 provided on one side is formed so as to engageably engage with the engaging piece 8 projecting on the other side of the other end surface on the open side.

Further, the second conduit holding body 2 holds the cut part P2 in a brim-like shape while holding the cut part P2 in the vicinity of the other cut part P2 of the cut body conduit P. ,
A large-diameter annular pressing side holding part 9 facing the receiving side holding part 4 of the first pipeline holding body 1 is arranged on the inner circumference and facing the pressing side holding part 3 of the first pipeline holding body 1. A radial annular receiving side holding portion 10 is arranged on the outer circumference and is arranged concentrically adjacent to each other, and like the first conduit holding body 1, the pressing side holding portion 9 is provided.
Also, the receiving side holding portion 10 is divided into semi-annular shapes, and one ends of the closing side portions thereof are openably and closably supported by the support piece 5 via the shaft pin 6 in the direction of opening and closing the annular shape. The locking portion 7 formed on one side of the other end surface of the side is formed so as to releasably lock the locking piece 8 projecting on the other of the other end surface of the open side.

Further, needles 11 such as staplers for stitching the overlapped flared portions are provided on the inner side surfaces of the pressing-side holding portions 3 and 9 at appropriate intervals, respectively, and A needle receiving groove 12 for receiving the stapler needle 11 is provided in each of the receiving side holding portions 4 and 10, and the stapler needle 1 is provided.
1 are respectively provided corresponding to the positions where they are buried, and the overlapped portions of the brim-shaped expansion can be sewn together, and the inner surface of each of the pressing side holding portions 3 and 9 is cut. A needle holding hole 13 for holding the stapler needle 11 is arranged along the circumference in order to sew the portion where the portions P1 and P2 are overlapped with each other by the needle 11.
It is formed so that the needle 11 is extruded from the outer side toward the receiving side holding bodies 4 and 10 by the comb teeth of No. 4. On the other hand, the receiving-side holding bodies 4 and 10 are provided with needle receiving grooves 12 corresponding to the positions of the needle holding holes 13, that is, the positions where the needles 11 are embedded.

A ring shape is formed on the outer edge of the inner side surface of the pressing side holding portion 3 of the first pipeline holding body 1 and the receiving side holding portion 10 of the second pipeline holding body 2 which face each other. The cut portions P1 and P2 of the body conduit P are spread along the brim to hold the cut portions P1 and P2.
A plurality of holding needles 15 having a length of about 5 mm and the holding needles 15
And the insertion holes 16 into which are inserted so that their positions are alternately shifted along the annular shape, and the distal ends of the respective holding needles 15 of the insertion holes 16 of the body conduit P are inserted. Each of the cutting portions P1 and P2 is provided with a needle tip portion 18 with a concave-convex portion 17 for surely holding them by spreading them in a brim shape, and the pressing-side holding portion 3 of the first conduit holding body 1 and the second pipe. On the outer peripheral surfaces of the tract holder 2 that face the receiving-side holding portion 10, the overlapping portions of the cut portions of the internal duct during operation of the internal duct such as the esophagus are sewn by pressing with forceps from both sides or one side. A pair of guide holes 19 and 20 which serve as guides at the time of doing, and a pair of guide pins 21 and 22 which fit into these guide holes 19 and 20, respectively.
Are provided so that these positions are alternately shifted along the outer peripheral surfaces of the pressing side holding portion 3 and the receiving side holding portion 10.

That is, a pair of guide holes 19 and a pair of guide pins 21 are provided on the outer peripheral surface of the pressing side holding portion 3 of the first conduit holding body 1 along the outer peripheral surface of the pressing side holding portion 3 by 90 degrees. The second pipe line holder 2 is provided with a pair of guide holes 20 and a pair of guide pins 22 on the outer peripheral surface of the receiving side holding portion 10 of the second pipe line holding body 2. Guide hole 20
Are provided so that the guide pins 21 are arranged at the positions facing each other and the guide holes 19 are arranged at the positions facing each guide pin 22, respectively, and the pressing side holding portion of the first conduit holding body 1 is provided. The length of each guide pin 21 of No. 3 is set longer than the length of each guide pin 22 of the receiving side holding part 10 of the second pipeline holding body 2, or conversely, the receiving side of the second pipeline holding body 2 is set. The length of each guide pin 22 of the holding portion 10 is set to be longer than the length of each guide pin 21 of the pressing side holding portion 3 of the first conduit holding body 1.

[0013]

As described above, the device for suturing a body conduit of the present invention cuts off an affected part of the body conduit P such as the esophagus with forceps, and then cuts the cut parts P1, P2 of the body conduit P. The two are rolled outward in a brim shape and overlapped, and the cut portion P of the body conduit P is
1 and 2 are constituted by a first conduit holder 1 and a second conduit holder 2 that press the overlapping portion of P2 with forceps from both sides or one side. The first conduit holder 1 and the second conduit holder At the outer edge of the inner surface facing the body 2, a body conduit P is formed along the annular shape.
A plurality of holding needles 15 each having an appropriate length and an insertion hole 16 into which the holding needles 15 are inserted so that the cutting portions P1 and P2 are spread and held in a brim shape. Along each of the holding needles 15, the cutting portions P of the body conduit P are attached to the respective holding needles 15 so as to be arranged alternately.
1 and P2 are provided with needle tips 18 with protrusions and recesses 17 for expanding and securely holding each other in a brim shape, and the first conduit holder 1 and the second conduit holder 2 face each other. On the outer peripheral surface, a pair of guide holes 19, which serve as guides when the overlapping portions of the cut portions of the internal duct are sewn by forceps from both sides or one side during surgery of the internal duct such as the esophagus, 20
And a pair of guides 21 and 22 fitted into the respective guide holes 19 and 20 are provided so as to be alternately shifted along the outer peripheral surface, and one of the pair of guides is provided. By setting the length of the pin 21 or the guide pin 22 to be longer than the length of the other pair of the guide pin 22 or the guide pin 21, the first conduit holder 1 and The second conduit holding body 2 is set on both sides of the affected part of the body conduit P, the affected part of the body conduit P is cut and separated with forceps, and then the cut parts P1 and P2 of the body conduit P are cut. The first pipe line holder 1 and the second pipe line holder 2 are wound together in a flange shape and overlapped with each other, and the overlapping portions of the cut portions P1 and P2 of the body pipe line P are clamped with forceps from both sides or one side. With a simple one-touch operation that only presses, the cut portion P1, It provides positive sutured 2 together, it is possible to completely prevent anastomotic cutting portion P1, P2 between the body duct P.

Moreover, a pair of guide holes 19, 20 are formed on the outer peripheral surfaces of the first conduit holder 1 and the second conduit holder 2 which are opposed to each other.
And a pair of guides 21 and 22 fitted into the respective guide holes 19 and 20 are provided so as to be alternately shifted along the outer peripheral surface, and one of the pair of guides is provided. By setting the length of the pin 21 or the guide pin 22 to be longer than the length of the other pair of the guide pin 22 or the guide pin 21, the cut portion P1 of the body conduit P1, when the body conduit P such as the esophagus is operated. When the overlapping portion of P2s is sewn by pressing with forceps from both sides or one side, the pair of guide pins 21 or 22 having the longer length is used.
Only one of them is fitted into the pair of guide holes 19 or 20 of the other party, and the other pair of guide pins 22 or 21 having the shorter length is used as the pair of guide holes 2 of the other party.
0 or the guide holes 19 and the holding needles 15 are automatically fitted into the respective insertion holes 16, so that they not only serve as guides but also have irregularities at the tip of each holding needle 15. By the needle point portion 18 with the portion 17, the cut portions P1 and P2 of the body conduit P can be spread in a brim shape and held more reliably.

[Brief description of the drawings]

FIG. 1 is a front view of a body channel suturing device of the present invention.

FIG. 2 is an exploded front view of the same.

FIG. 3 is also an inner side view of the first conduit holding body.

FIG. 4 is also an inner side view of the second conduit holding body.

FIG. 5 is an enlarged front cross-sectional view of a body conduit showing a state in which it is sewn according to the present invention.

[Explanation of symbols]

 1 1st pipeline holding body 2 2nd pipeline holding body 3 Pressing side holding part 4 Receiving side holding part 5 Support piece 6 Shaft pin 7 Locking part 8 Locking piece 9 Pushing side holding part 10 Receiving side holding part 11 Needle 12 Needle receiving groove 13 Needle holding hole 14 Needle pressing body 15 Holding needle 16 Insertion hole 17 Concavo-convex part 18 Needle tip part 19 Guide hole 20 Guide hole 21 Guide pin 22 Guide pin P Body conduit P1 Cutting part P2 Cutting part

Claims (1)

[Claims] 1. A first conduit holding body and a second conduit holding body for pressing the overlapping portion of the cut portions of the body conduit such as the esophagus from both sides or one side with forceps. At the outer edge of the inner surface facing the holding body and the second pipeline holding body,
A plurality of holding needles each having an appropriate length for expanding and holding the cut portions of the body duct along the annular shape in a brim shape, and an insertion hole into which the holding needles are inserted, the positions of which are circular. Are placed so that they are alternately staggered along each other, and the tip of each holding needle has an uneven part for expanding the cut parts of the body conduit in a brim shape and securely holding them. A needle tip portion is provided respectively, and the outer peripheral surfaces of the first conduit holder and the second conduit holder that face each other are cut off from each other at the time of surgery on the internal conduit such as the esophagus. A pair of guide holes, which serve as guides when suturing the overlapped portion of the above with forceps from both sides or one side, and a pair of guides fitted into these guide holes, are alternately displaced along the outer peripheral surface. The guide pins are provided in such a manner that the length of one of the pair of guide pins is Body duct suture tool, characterized in that set longer than the length of the pair of guide pins.