JPS6025214Y2 - Flexible suturing device for internal ducts - Google Patents

Description

[Detailed description of the invention] This invention relates to a bendable suturing device for intracorporeal ducts, and was filed in 1983.
-012956 (Utility Model Application Publication No. 56-116011)
By making the middle part of the suturing device for internal ducts proposed in 2017 into a flexible tube, the flexible front end can be inserted into the internal ducts that are bent in various ways to remove the affected area. The present invention also relates to a bendable suturing device for intracorporeal ducts that can be sutured in an instant.

This type of suturing device was proposed in Utility Model Application No. 55-012956 (Utility Model Application No. 56-116011), but in actual use, the body ducts are bent in various ways. In order to avoid straining the body canal itself, it is necessary to use a suturing device that matches the curvature of the body canal each time, which increases the time and effort of treatment, and at the same time, it is necessary to have many types of suturing devices. There were some drawbacks.

Therefore, the present invention was devised in view of these drawbacks, and its gist is that in the front part, a stela pull housing part is arranged in an annular manner at the front end opening of the cylindrical suture part main body. , a needle pusher body for pushing forward the Stella pull housed in the Stella pull housing part, and a needle pusher body provided inside the needle pusher body,
In addition, an annular cutting blade that operates together with the needle pusher is provided, and a suture handle rod that is non-rotatably but slidably attached to the approximate center of the suture body is disposed at the tip of the handle. The conical suture receiving part is fixed so that its bottom face faces the front end face of the suture part main body, and the bottom face has a shape of a Stella pull receiving part facing the above-mentioned Stella pull receiving part, and a spacer on the inside of the receiving part. A sutured part is formed with a receiving part for the cutting blade.At the rear of the waist, there are two gripping parts, one of which opens and closes via a fulcrum, and one of the gripping parts can be opened and closed to move back and forth. A grip consisting of a sliding actuating cylinder and a gripping rod having a male screw part at the rear end that is inserted into the actuating cylinder and slides back and forth by rotating the female screw body left and right. The rear end opening of the suture body is connected to the other gripping body that does not perform opening/closing operation, and the rear end of the needle pusher body and the actuating cylinder are connected by visible tubes, and the suture When the proximal end of the part handle and the front end of the grip part handle are connected with a cable, and the female screw body is rotated to move the suture part handle backward, the suture receiving part and the suture part are connected. A stopper is provided for stopping the suture receiver at the position of the gap between the front end surface of the main body and the body channel.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

That is, in the figure, reference numeral 1 denotes a cylindrical suture body, and a cartridge body 3 in which a Stella pull accommodating portion 4 is arranged in an annular manner is detachably attached to a front end opening 2 of the suture body 1. Inside, there is a needle pusher 6 that pushes forward the Stella pull 5 housed in the Stella pull housing part 4, and a needle pusher 6.
An annular cutting blade 7 is provided inside the needle pusher 6 and operates together with the needle pusher 6.

A suture part handle 8 is slidably attached to the approximate center of the suture part main body 1, and two grooves 9 are carved in the axial direction on the handle handle 8. The suture portion handle lever 8 is made unrotatable by engaging with a rotation preventing claw 10 projected from the holder.

Moreover, a conical suture receiving part 11 is fixed to the tip of the handle rod 8 so that its bottom surface 12 faces the front end surface 36 of the suture part main body 1, and the bottom surface 12 has the above-mentioned stellar pull accommodating part 4.
A stabilizing receiving part 13 is formed by facing the sterile pull receiving part 13, and a receiving part 14 for the cutting blade 7 is provided inside the receiving part 13 to form a suture part A.

Therefore, as shown in FIG. 4, the suture part A is inserted into the body channel 40 so that the affected part 41 is located between the bottom surface 12 of the suture receiving part 11 and the front end surface 36 of the suture part main body 1, A portion of the affected area 41 is tied from the outside of the body channel 40 with a thread 42 or the like, and is recessed toward the inside of the suture body 1 and the suture receiver 11 to the vicinity of the suture handle rod 8.

Then, the suture section handle 8 is slid backward and held between the bottom surface 12 of the suture receiving section 11 and the front end surface 36 of the suture section main body 1, and then the suture section handle 8 is already accommodated in the Stella pull accommodating section 4 by the cartridge main body 3. Push out the Stella pull 5 by pushing the needle pusher 6 forward, pierce the concave root part of the affected area 41 with the Stella pull 5, and then bend the tip of the Stella pull 5 against the Stella pull receiving part 13. suture.

Moreover, at this time, further inside the staple pull accommodating part 4 in the suture part main body 1, the cutting blade 7 and its receiving part 14 working together with the needle pushing body 6 cut the affected part 41 recessed inward, and the suture part A can perform the work of cutting the affected part 41 and suturing the cut intracorporeal channel 40 at the same time.

On the other hand, two gripping parts 16 and 17 are formed behind the suture part A, one of which operates to open and close via a fulcrum 15, and the operating part 18 of one of the gripping parts 16 is different from the other which does not operate to open and close. It is pivotally supported at the middle part of an actuating cylinder 20 that is slidable within a cylindrical actuating holder 19 that is attached to the tip of the gripping part 17 in a substantially T-shape. By opening and closing, the operating cylinder 2° is slid back and forth.

Further, inside the actuating cylinder 20, a female threaded body 22 attached to the rear end 21 of the actuating part holder 19 and rotatable but not sliding is rotated left and right, thereby moving back and forth. Gripping portion handle rod 24 having a male threaded portion 23 at the rear end
The grip portion B is formed by being able to slide through the grip portion B.

Similarly to the suture portion handle 8, the gripping portion handle lever 24 has two grooves 25 carved in the axial direction, and is engaged with a detent pawl 26 protruding inside the actuating cylinder body 20. In addition, the handle rod 24 of the gripping portion cannot be rotated.

Further, the female screw body 22 is attached to the rear end 21 of the operating part holder 19 as described above, and its structure is different from that of the rear end 21.
A cap 27 is attached and fixed to the rear end of the cap 27 with a screw, and a tube is attached to the rear end of the cap 27.

Furthermore, a recessed groove 29 is provided around the outer periphery of the mounting portion 28, and a large number of steel balls 31 are arranged on the inner periphery of a rotary cylinder 30 that is integrated with the female threaded body 22 by screws. By fitting into the recessed groove 29, the female threaded body 22 can be rotatably but non-slidably attached to the rear end 21 of the operating portion holder 19.

Thus, the suture part A and the grip part B are connected as shown below.

That is, the outer diameters of the rear end of the suture section main body 1 and the front end of the actuating section holder 19 are made the same diameter, and the rear end and front end are connected by a flexible tube 32 having the same diameter. A cylindrical connecting portion 33 is provided on the rear end surface of the pushing body 6, and the outer diameter of the connecting portion 33 and the operating cylinder 20 is made slightly smaller than the inner diameter of the visible tube 32, and the connecting portion 33 and the actuating cylinder 20 are connected by a flexible tube 34 having the same diameter, and the flexible tube 34 is inserted through the flexible tube 32, and the suture portion handle 8
The proximal end of the handle member 24 and the rear end of the handle rod 24 are connected by a cable 35 inserted through the flexible tube 34 that connects the connecting portion 33 and the operating cylinder 20 to form a sutured portion A. and the grip part B are connected.

Then, when the female screw body 22 is rotated to move the suture part handle 8 backward, the position of the gap where the intracorporeal duct is held between the suture receiving part 11 and the front end surface 36 of the suture part main body 1 (
A stopper 37 that stops the suture receiver 11 at the position indicated by the two-dot chain line in FIG.
You can work with peace of mind without damaging the internal ducts by pinching with excessive force.

In addition, numeral 38 in the figure is a leaf spring that constantly presses the one gripping part 16 that operates to open and close in the opening direction by elastic force,
Reference numeral 39 denotes an abutment rod that is brought into contact with the leaf spring 38 when the leaf spring 38 presses one of the gripping portions 16.

Therefore, the suture part A and the grip part B are connected by the flexible tubes 32 and 34 and the cable 35, and the suture part A is actuated by the operation of the grip part B, and the intermediate part thereof is attached to the flexible tube 32. ,3
4 and the cable 35, it is bendable and can be easily inserted into the body duct 40 which is bent in various ways.

Further, the flexible tubes 32 and 34 have coil springs 43 and 44 each formed by spirally winding a steel wire with a circular cross section and a cable wire with a triangular cross section. The springs 43 and 44 are arranged alternately, and the elastic forces of both springs 43 and 44 are applied in the direction of contraction.

The springs 43 and 44 are made of steel wire, and the circular cross-sectional area is smaller than the triangular cross-sectional area.

Therefore, when the flexible tubes 32 and 34 are bent, the pitch of the springs 13 with a triangular cross section narrows on the inside of the bend, and the spring 44 with a circular cross section is pushed out to the outside of the bend. The pitch of the spring 43 is widened, and the spring 40 with a circular cross section is bent and pushed outward by the widened distance.
When the flexible tubes 32 and 34 are bent, the bent state with no gaps can be maintained.

As explained above, the present invention is based on Utility Application No. 55-0129.
56 (Utility Model Application Publication No. 56-116011), the suturing device for intracorporeal ducts is separated into a suturing part and a gripping part,
By connecting them with flexible tubes, it becomes possible to insert the tubes into the body's ducts which are curved in various ways without force, and there is no damage caused by the insertion near the affected area. This eliminates the disadvantage that several types of suturing instruments were required depending on the degree of bending of the intracorporeal duct, and provides practical benefits such as increased versatility.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a front sectional view, Fig. 2 is a sectional view taken along the ■-■ arrow, Fig. 3 is a sectional view taken along the 1-111 arrow, and Fig. 4 is a view taken during suturing. This is a process diagram. A... Suture part, B... Grasping part, 1...
... Suture body, 2... Front end opening, 3.
...Cartridge body, 4...Stella pull housing section, 5...Stella pull, 6...
Needle pushing body, 7... Cutting blade, 8... Suture part handle, 9... Groove, 10... Detent claw,
11... Suture receiving part, 12... Bottom surface, 1
3... Stellar pull receiving part, 14... Receiving part, 15... Fulcrum, 16.17... Gripping part, 18... Actuation part, 19... Actuation part holder, 20... Actuation cylinder, 21...
Rear end, 22...Female thread body, 23...Male thread part, 24...Grip handle lever, 25...
・Groove, 26... Detent claw, 27...
Cap, 28... Mounting part, 29...
Groove, 30...Rotating tube, 31...Steel ball, 32...Flexible tube, 33...Connection part,
34...Flexible tube, 35...Cable, 36
...Front end, 37...Stopper 40...
...Body duct, 41... Affected area, 42...
... Thread, 43.44 ... Coil fling.

Claims (1)

[Scope of utility model registration request] In the front part, a stela pull accommodating part is annularly disposed at the front end opening of the cylindrical suture body, and a needle pusher for pushing forward the stela pull housed in the stela pull accommodating part, and a needle are provided in the main body. An annular cutting blade is provided inside the pusher body and operates together with the needle pusher body, and furthermore, a suture handle rod is arranged in a non-rotatable but slidable manner approximately at the center of the suture body. A conical suture receiving part is fixed to the tip of the handle rod so that its bottom face faces the front end surface of the suture part main body, and a Stella pull receiving part is formed on the bottom face facing the Stella pull receiving part. At the same time, a suture part is formed in which a receiving part for the cutting blade is provided inside the receiving part, and two gripping parts, one of which operates to open and close via a fulcrum, are provided at the rear part, and one gripping part is provided at the rear part. It has an operating cylinder that slides back and forth by opening and closing the holding part, and a male threaded part at the rear end that is inserted into the operating cylinder and slides back and forth by rotating the female threaded body from side to side. A gripping part consisting of a gripping part handle rod, a rear end opening of the suture part main body and the other gripping body which does not perform opening/closing operation, and a rear end of the needle pusher body and an operating cylinder. are connected by flexible tubes, and the proximal end of the suture part handle and the front end of the grip part handle are connected with a cord, and the female screw body is rotated to move the suture part handle backward. A method for freely bending a body canal, characterized in that a stopper is provided that stops the suture receiving part at a position of a gap between the suture receiving part and the front end surface of the suture part main body, where the suture receiving part is held between the suture receiving part and the front end surface of the suture part main body. Suture device.