WO2021095941A1

WO2021095941A1 - Microsuture device

Info

Publication number: WO2021095941A1
Application number: PCT/KR2019/015642
Authority: WO
Inventors: 송영규
Original assignee: 주식회사 드리머쓰리디
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2021-05-20
Also published as: KR20210059307A

Abstract

A microsuture device is provided. A microsuture device according to one embodiment of the present invention withdraws a wire by means of a switch (220), and twists the withdrawn wire and an outer wire since a cap (290) rotates when a press member (260) is pressed in a state in which the outer wire is coupled to an outer wire coupling hole (285). Therefore, suturing is facilitated during microsuture surgery so that surgery performance time is remarkably reduced. Additionally, post-traumatic stress and pain of a patient are reduced since surgery time is short, and recovery is accelerated. Furthermore, fatigue accumulation of a surgeon is reduced according to the reduction in surgery performance time, and thus medical malpractice can be prevented.

Description

Fine suture device

The present invention relates to a micro-sealing device, and more particularly, to a micro-sealing device capable of reducing surgical operation time and pain of a patient for suturing a minute incision of a human body such as a cornea or an iris.

In general, when suturing a wound or an incision in the human body, suture surgery is performed using a surgical suture thread. However, if such a suture operation is performed manually, there may be variations in the spacing or shape of the suture area depending on the skill of the operator, and the suture may not be successfully performed, so that the suture operation may be performed.

Among them, when suturing very thin and fine tissues such as the cornea and the iris, more sophisticated fine sutures are required. Currently, the suture is performed using medical threads and needles. Such a suturing method has a great difficulty in suturing a very thin cornea such that the thickness of the central portion is only about 0.53mm, even for the skilled technician. The suture tension, suture shape, and suture spacing of the surgical site are not uniform, and the procedure variation is very large, and this may cause problems such as a low surgical success rate and poor reproducibility.

In addition, the surgeon's operating time increases in order to proceed with the suture surgery, and accordingly, the patient's pain and post-traumatic stress may increase.

In order to solve the above problem, the'needle holder for fine area suturing (Registration No.: 10-1372386)' allows the needle to be handled in a narrow space to facilitate suturing of the fine area, and an incision is made to suture the fine area. Disclosed is a needle holder for suturing fine parts that can minimize the tissue around the fine parts that need to be done.

However, this method solved the problem of inevitable incision and opening the tissue around the microscopic area in order to secure a space for the operator to move and rotate the needle holder, but still, the needle holder must be moved within the microstructure for suturing. In addition, since there is a limit to reducing the operating time for surgery, the development of a new technology for this is urgently required.

The present invention is to solve the above problems, and relates to a fine suture device capable of reducing the operation time and pain of a patient for suturing a minute incision of a human body such as a cornea or an iris.

In order to achieve the above object, the micro-sealing device according to an embodiment of the present invention has a long cylindrical shape, and a cylindrical cam 210 is formed at one end, a switch hole 201 is formed at the middle, and the other end is opened. External housing 200; As a cylinder inserted into the inside of the outer housing 200, a taper 110 is formed at one end of the cylindrical pressure cylinder 100 positioned in the switch through hole 201; It is formed in the switch hole 201 of the outer housing 200, and pressurizes the taper 110 of the pressure cylinder 100 in a direction of the cylinder axis of the outer housing 200. A switch 220 to move; One end of the front end of the expansion type chuck 150 is formed, the other end of the clutch 130 is press-fit into the front end of the pressure cylinder (100); As a cylinder inserted into the clutch 130, a wire holder 120 for inserting a wire into the inside; A chuck holder 160 that slides through and engages one end of the clutch 130 and has a tightening end 161 formed therein to tighten the chuck 150; A pressure cylinder restoration spring 140 formed on an outer circumferential surface of the clutch 130 and elastically acting in a direction in which the chuck holder 160 and the pressure cylinder 100 are pushed; As a cylindrical body that couples the chuck holder 160 to the inner side and is coupled to the other end of the outer housing 200, a chuck expansion chamber 291 is formed on the inner side of the chuck holder 160 and has a central axis therethrough. ) Is formed and a tip coupling portion 292 is formed at the other end portion of the cap 290; A wire hole 284 that is coupled to the tip coupling portion 292 and has an axis aligned with the cap central axis is formed at an end thereof, so that the wire of the wire holder 120 is drawn out, and an external side of the wire hole 284 A wire tip 281 having a wire coupling hole 285 formed therein; A cap bearing 300 coupled to an outer circumferential surface of the cap 290; A bearing supporter 310 coupled to the cap bearing 300 and rotating with respect to the cap 290; A cam follower 240 coupled to the cylindrical cam 210; A rear stopper 250 that is coupled to an end of the cylindrical cam 210 to become a stopper of the cam follower 240; A cam restoring spring 230 inserted between the cam follower 240 and the rear stopper 250; One end is coupled to the cam follower 240, the other end is a semicircular elastic body coupled to the bearing supporter 310, a pair of press members 260 symmetrically coupled to the outer housing 200; Consist of, the wire is drawn out to the switch 220, and when the press member 260 is pressed in a state in which the external wire is coupled to the external wire coupling hole 285, the cap 290 is rotated and drawn out The technical point is to twist the and external wires.

Preferably, it is coupled to the other end of the cap 290, is formed in a direction in which the wire tip 281 is expanded, and a knife 283 bent toward the end of the wire tip 281 is formed at the end. Tip 282; A tip holder 271 formed in an annular shape to insert the cutting tip 282 and the wire tip 281 into the inside; A cutting supporter 270 which is formed in an S-shape and has one end coupled to the press member 260 and the other end passing through the press member 260 and coupled to the tip holder 271; Consisting of including, when the press member 260 is pressed, the tip holder 271 is slid and moved by the cutting supporter 270 so that the knife 283 of the cutting tip 282 is moved to the wire tip 281 It is assumed that the wires at the ends are cut.

Preferably, the tightening end 161 is formed of a tightening ring 162 that is in close contact with the chuck 150 from the inside of the chuck holder 160.

Preferably, the tightening end 161, the end of the chuck holder 160 is formed to have a diameter in close contact with the head of the chuck 150, and the chuck expansion chamber 291 of the cap 290 is the chuck It is formed to have a larger diameter than the head of 150, and is configured to be expanded when the head of the chuck 150 is moved to the chuck expansion chamber 291.

The present invention by means of solving the above problems has the effect of remarkably reducing the operation time by facilitating suturing during micro suture surgery.

In addition, short-time surgery has the advantage of reducing post-traumatic stress and pain and speeding recovery.

In addition, it is possible to prevent medical accidents by reducing the accumulation of fatigue of the operator as the operation time is reduced.

1 is an exploded view and a perspective view of a wire holding unit according to an embodiment of the present invention.

Figure 2 is an exploded view and a perspective view of the micro-sealing device according to an embodiment of the present invention.

3 is a front view and an enlarged view of the micro-sealing device of FIG. 2.

4 is a cross-sectional view for explaining holding and withdrawing the wire of FIG. 2.

5 is an enlarged cross-sectional view illustrating still another wire holding and drawing of FIG. 2.

Figure 6 is an explanatory diagram showing a wire twisting principle due to the rotation of Figure 2;

Fig. 7 is an explanatory view showing the wire cutting principle of Fig. 2;

8 is an exemplary view of an iris suturing operation using the micro suture device of FIG. 2.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded view and a perspective view of a wire holding unit according to an embodiment of the present invention. As shown in Figure 1, the wire holding unit is configured to include a pressure cylinder 100, a wire holder 120, a clutch 130, a pressure cylinder restoration spring 140, a chuck holder 160, and is a fine sealing device. It is a unit inserted into the inside of the unit, and serves to fix the wire inserted into the inside.

Specifically, the pressure cylinder 100 has a cylindrical shape and a taper 110 is formed at one end thereof, and the clutch 130 press-fitted into the front end of the pressure cylinder 100 has an expansion-type cutting chuck 150 formed at the front end. The wire holder 120 inserted into the clutch 130 holds the wire when the wire is inserted from the outside. The chuck holder 160 slides and engages one end of the clutch 130, and a tightening end for tightening the chuck 150 is formed inside, and the clutch 130 between the pressure cylinder 100 and the chuck holder 160 A pressure cylinder restoration spring 140 is provided on the outer circumferential surface so that elasticity acts in the direction of pushing the chuck holder 160 and the pressure cylinder 100.

2 is an exploded view and a perspective view of the micro-sealing device according to an embodiment of the present invention, and FIG. 3 is a front view and an enlarged view of the micro-sealing device of FIG. 2. A detailed look at the micro-seal device with reference to FIGS. 2 and 3 is as follows.

The micro-sealing device includes an outer housing 200, a switch 220 disposed in the switch hole 201 formed in the outer housing, a cam restoration spring 230, a cam follower 240, a rear stopper 250, a pair of It consists of a press member 260, a cutting supporter 270, a tip 280, a cap 290, a cap bearing 300, and a bearing supporter 310.

In detail, in the long cylindrical outer housing 200 into which the wire holding unit of FIG. 1 is inserted, a cylindrical cam 210 is formed at the rear end, and a switch through hole 201 is formed at the middle end, The front end is configured in an open shape. The switch 220 is disposed in the switch hole 201 formed in the middle portion of the outer housing 200, and the switch 220 contacts and presses the taper 110 portion of the pressure cylinder 100 to pressurize the pressure cylinder 100. Is moved in the direction of the cylindrical axis of the outer housing 200. In addition, a screw thread 211 is formed on the outer circumferential surface of the cylindrical cam 210, and a cam follower 240 with a threaded groove formed therein so that the screw thread 211 can be fitted is coupled to the cylindrical cam 210, and A rear stopper 250 serving as a stopper of the cam follower 240 is coupled to the rear end of the cam 210. The cam restoring spring 230 is coupled to the outer peripheral surface of the cylindrical cam 210 between the cam follower 240 and the rear stopper 250 to have elasticity.

The cap 290 of the cylindrical body is coupled to the front end of the outer housing 200 to couple the chuck holder 160 to the inside, and the chuck expansion chamber 291 is provided on the inner side of the cap 290 facing the chuck holder 160. ) Is formed, and a tip coupling portion 292 is formed at the other end portion, so that the tip 280 is coupled. The rear end of the tip 280 is integral, but the front end is divided into a wire tip 281 and a cutting tip 282, and the wire tip 281 is a wire hole in which the central axis of the cap 290 coincides with the axis at the end. 284 is formed so that the wire of the wire holder 120 is withdrawn, and an external wire coupling hole 285 into which an external wire can be inserted is formed on the side of the wire hole 284.

The cap bearing 300 is coupled to the outer circumferential surface of the cap 290 coupled to the front end of the outer housing 200, and a bearing supporter 310 rotating with respect to the cap 290 is coupled to the cap bearing 300. . In addition, a pair of press members 260 disposed symmetrically to the outer housing 200 has one end coupled to the cam follower 240, the other end coupled to the bearing support 310, and made of a semicircular elastic body. .

Meanwhile, the fine sealing device according to an embodiment of the present invention may further include a tip holder 271 and a cutting supporter 270. The tip holder 271 is formed in an annular shape and is combined in a structure in which the wire tip 281 and the cutting tip 282 formed on the tip 280 are inserted inside, and the cutting supporter 270 is formed in an S shape. The front end is coupled to the press member 260, the rear end is coupled to the tip holder 271 through the press member 260.

The principle of wire holding and withdrawal of the micro-sealing device formed with such a coupling structure will be described as follows.

4 and 5 are cross-sectional views illustrating holding and drawing wires of FIG. 2. Referring to FIG. 4, when the switch 220 is pressed from the outside, the switch 220 contacts and presses the taper 110 of the pressurization container 100 to push the pressurization container 100 forward, and the pressurization container 100 The clutch 130 coupled to the front end of the clutch 130 is pushed forward, and the expansion-type cutting chuck 150 formed at the front end of the clutch 130 is pushed forward. At this time, as a tightening end 161 for tightening the chuck 150 inside the chuck holder 160, a tightening ring 162 that is in close contact with the chuck 150 is formed inside the chuck holder 160. When the clutch 130 is moved forward, the tightening ring 162 presses the outer circumferential surface of the front end of the clutch 130 to tighten the chuck 150, the incision type expansion chuck 150 is expanded forward so that the wire is extended by a certain length. It is withdrawn to the front.

As another method of withdrawing the wire, as shown in FIG. 5, as a tightening end 161 for tightening the chuck 150 inside the chuck holder 160, the front end of the chuck holder 160 is It is formed with a diameter that is in close contact with the head, and the chuck expansion chamber 291 of the cap 290 is preferably formed to have a larger diameter than the head of the chuck 150. When the clutch 130 is moved forward and the chuck 150 is pushed forward, the head of the chuck 150 is moved to the chuck expansion chamber 291 and expanded so that the wire is drawn forward by a predetermined length.

6 is an explanatory diagram showing a wire twisting principle due to rotation of FIG. 2. Referring to FIG. 6, in the micro-sealing device, when the wire is withdrawn by the switch 220 and the press member 260 is pressed while the external wire is coupled to the external wire coupling hole 285, the cap 290 is rotated and the wire It can be seen that automatic sealing is performed by twisting the wire drawn through the hole 284 and the wire coupled to the external wire coupling hole 285.

7 is an explanatory view showing the wire cutting principle of FIG. 2. Referring to FIG. 7, when the press member 260 having elasticity by pressing the press member 260 and the cutting supporter 270 are extended in the longitudinal direction, the tip holder 271 is slid and moved by the cutting supporter The gap between the 281 and the cutting tip 282 is narrowed. At this time, a knife 283 bent toward the end of the wire tip 281 is formed at the end of the cutting tip 282 formed in the direction in which the wire tip 281 is expanded, so that the wires at the end of the wire tip 281 are knives ( 283) is to cut.

For a suturing operation using a fine suture device formed with such a coupling structure, two fine suture devices are used at the same time. A method of suturing the iris using this will be described as an example.

8 is an exemplary view of an iris suture operation according to an embodiment of the present invention. Referring to FIG. 8, it can be seen that the iris suture surgery is performed in the order of retinal incision, instrument insertion, position selection, wire holding, wire suturing, and wire cutting.

In detail, first, while pressing the switch 220 of the micro-sealing device, two micro-sealing devices in which a wire is inserted through the front portion of the wire hole 284 are prepared. Next, incisions are made on both sides of the retina located in the vicinity of the area where suture is required in the iris so that a fine suture device can be inserted for suturing the iris. At this time, it is preferable to cut only the smallest part enough to enter the tip 280 of the fine suture device. Next, it is preferable that the micro-seal device is inserted into each incision on both sides of the retina, but only up to the tip 280 of the micro-seal device is inserted into the retina. At this time, one of the two fine sealing devices is inserted so that the wire tip 281 is positioned at the top of the wire tip 281 and the cutting tip 282, and one is inserted so that the cutting tip 282 is positioned at the top. do. Next, the length of the wire is positioned so that the wires of both micro-sealing devices pass through the position to be sealed, and the wire is pulled out by pressing the switch 220, so that the wires contact each other at the ends of the tips 280 of the micro-sealing devices on both sides. Adjust. Next, the wires drawn out from both fine sealing devices are inserted into the external wire coupling holes 285 of the counterpart to each other, thereby holding the wires. Next, when the wire is held, the cam follower 240 compresses the cam restoring spring 230 and slightly presses the press member 260 to move backward, and rotates the micro-sealing devices on both sides, so that the two mechanisms are opposite to each other. The incision of the iris is sutured by rotating and twisting the wires together. After sealing, the knife 283 formed at the end of the cutting tip 282 further presses the press member 260 so that the wire can be cut to cut the wires on both sides.

As described above, the micro-sealing device of the present invention draws the wire to the switch 220, and when the press member 260 is pressed while the external wire is coupled to the external wire coupling hole 285, the cap 290 rotates. As a device that facilitates suturing by twisting the wire to be drawn out and the external wire, it is effective in remarkably reducing the operation time by facilitating suturing during micro suture surgery. In addition, short-time surgery has the advantage of reducing post-traumatic stress and pain and speeding recovery. In addition, it is possible to prevent medical accidents by reducing the accumulation of fatigue of the operator as the operation time is reduced.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be interpreted by the claims, and all technical thoughts within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims

As a medical instrument for fine suturing,

A cylindrical cam 210 is formed at one end of a long cylindrical shape, a switch hole 201 is formed at the middle end, and an outer housing 200 opened at the other end;

As a cylinder inserted into the inside of the outer housing 200, a taper 110 is formed at one end of the cylindrical pressure cylinder 100 positioned in the switch through hole 201;

It is formed in the switch hole 201 of the outer housing 200, and pressurizes the taper 110 of the pressure cylinder 100 in a direction of the cylinder axis of the outer housing 200. A switch 220 to move;

One end of the front end of the expansion type chuck 150 is formed, the other end of the clutch 130 is press-fit into the front end of the pressure cylinder (100);

As a cylinder inserted into the clutch 130, a wire holder 120 for inserting a wire into the inside;

A chuck holder 160 that slides through and engages one end of the clutch 130 and has a tightening end 161 formed therein to tighten the chuck 150;

A pressure cylinder restoration spring 140 formed on an outer circumferential surface of the clutch 130 and elastically acting in a direction in which the chuck holder 160 and the pressure cylinder 100 are pushed;

As a cylindrical body that couples the chuck holder 160 to the inner side and is coupled to the other end of the outer housing 200, a chuck expansion chamber 291 is formed on the inner side of the chuck holder 160 and has a central axis formed therethrough. ) Is formed and a tip coupling portion 292 is formed at the other end portion of the cap 290;

A wire hole 284 that is coupled to the tip coupling portion 292 and has an axis aligned with the cap central axis is formed at an end thereof, so that the wire of the wire holder 120 is drawn out, and an external side of the wire hole 284 A wire tip 281 having a wire coupling hole 285 formed therein;

A cap bearing 300 coupled to the outer circumferential surface of the cap 290;

A bearing supporter 310 which is coupled to the cap bearing 300 and rotates with respect to the cap 290;

A cam follower 240 coupled to the cylindrical cam 210;

A rear stopper 250 that is coupled to an end of the cylindrical cam 210 to become a stopper of the cam follower 240;

A cam restoring spring 230 inserted between the cam follower 240 and the rear stopper 250;

One end is coupled to the cam follower 240, the other end is a semicircular elastic body coupled to the bearing supporter 310, a pair of press members 260 symmetrically coupled to the outer housing 200;

Consists of

When the wire is drawn out to the switch 220 and the press member 260 is pressed while the external wire is coupled to the external wire coupling hole 285, the cap 290 is rotated to connect the wire and the external wire to be drawn out. Micro-sealing device, characterized in that to twist.
The method of claim 1,

A cutting tip 282 coupled to the other end of the cap 290, formed in a direction extending to the wire tip 281, and having a knife 283 bent toward the end of the wire tip 281 at the end thereof. ;

A tip holder 271 formed in an annular shape to insert the cutting tip 282 and the wire tip 281 into the inside;

A cutting supporter 270 which is formed in an S-shape and has one end coupled to the press member 260 and the other end passing through the press member 260 and coupled to the tip holder 271;

Consists of including

When the press member 260 is pressed, the tip holder 271 is slid and moved by the cutting supporter 270 so that the knife 283 of the cutting tip 282 cuts the wires at the ends of the wire tip 281. Micro suture device, characterized in that.
The method of claim 1,

The tightening end 161,

A fine sealing device, characterized in that formed of a tightening ring (162) in close contact with the chuck (150) from the inside of the chuck holder (160).
The method of claim 1,

The tightening end 161 is

The end of the chuck holder 160 is formed to have a diameter in close contact with the head of the chuck 150,

The chuck expansion chamber 291 of the cap 290 is formed to have a larger diameter than the head of the chuck 150,

Micro-sealing device, characterized in that configured to expand when the head of the chuck 150 is moved to the chuck expansion chamber 291.