KR102593196B1 - Medical Snare Equipment - Google Patents

Abstract

The present invention relates to a medical snare device that can accurately and quickly cut and remove polyps that have developed in organs of the human body, as well as minimize bleeding in the area where the polyp has been cut and removed, and its configuration includes: Each operating tool for operating the snare operating means and the needle operating means is formed separately on the same line on both rear sides of the main body where the fixture is formed, so that the snare operating means and the needle operating means can be operated separately.

Description

Medical Snare Equipment {Medical Snare Equipment}

The medical snare device of the present invention supplies a medical solution to a polyp that has developed in an organ in the body to inflate the polyp, inserts a noose into the swollen polyp, inserts it, supplies a high-frequency current, and cuts the polyp to quickly and easily remove the polyp while minimizing bleeding. This was done so that it could be removed.

In general, an endoscope is used to directly view the inside of the body, such as the inside of a hollow hollow organ such as the stomach or esophagus, the chest cavity, or the abdominal cavity. Depending on its purpose, it can be used as a bronchoscope, laryngoscope, esophagoscope, stomach/abdominal cavity, etc. It is divided into a wide variety of types, such as enteroscopes, hysteroscopes, urethroscopes, arthroscopes, cystoscopes, laparoscopes, etc., and makes it possible to easily perform tissue resection and secretion collection while observing the condition inside the human body. It is a medical device that greatly helps in the detection, diagnosis, and treatment of diseases.

If a polyp is found during a colonoscopy using the above-described endoscope, a procedure is performed to remove the polyp while observing the affected area through the endoscope while inserting multiple surgical instruments into the body along with the endoscope.

In other words, the existing method of removing polyps is to first insert a snare, a polyp resection tool, into the body through an endoscope, bring it close to the discovered polyp, and then protrude the wire of the snare from the tube of the endoscope through the control unit. A surgical procedure is being performed in which a polyp is excised using a wire supplied with high-frequency current, the snare is separated from the endoscope, and a separate hemostatic tool is inserted into the endoscope tube to stop bleeding on one side of the body where the polyp has been excised.

In the snare described above, there is a need to control the direction of the snare so that tissues such as polyps can be inserted into the snare. In other words, proper treatment is possible only when the tissue of the affected area and protrusions such as polyps are inserted into the noose and the noose is tightened.

Therefore, in the past, the snare inserted inside the tube of the endoscope was manipulated to twist the flexible insulating tube and the wire cord inserted inside the snare by rotating the operating parts such as the device and the operating device, so that the twisting rotational force was transmitted to the snare inserted into the body through the endoscope. It is configured so that the operator can adjust the direction of the noose by looking at the endoscope through the operating parts such as the device and the operating tool.

However, the conventional snare as described above had the drawback of being inconvenient and difficult to adjust the direction of the snare.

Accordingly, in order to solve the above problems, the present inventor has developed a medical snare device of the previously published Korean Patent No. 10-2262289, as shown in Figures 1 and 2 (Patent Document 1). There is, and its composition is as follows.

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A wire cord (10) installed penetrating the tube (12) and forming a noose (11) at the tip, a rotating body (20) connected to the wire cord and rotating the wire cord, and connected to the rotating body. In the medical snare device consisting of a handle 30 that is installed and moves the wire cord forward/backward together with the rotating body,

The rotating body 20 is hollow inside, has an open front, and is provided with a sleeve 21 in which a long hole 21a is formed on one side and an electrode hole 21b is formed on the other side, and an opening of the sleeve is provided. A high-frequency electrode (22b) through which the wire cord penetrates and comes into contact is installed on one side, and a fixture (22) formed with a guide hole (22a) is installed at the rear center, and is inserted into the guide hole at the rear of the fixture. A guide (23a) that moves forward and backward is formed, a lower vertical portion (23b-1) is formed on one side of the rear end surface of the guide, and a lower inclined surface (23b2) that slopes downward on the other side is formed at the top of the vertical portion. The lower rotating body 23 formed by forming (23b) is connected and installed, and an upper vertical portion 24b-1 is formed on one side on the tip surface at the upper part of the lower rotating body and is downward on the other side at the upper end of the vertical portion. The upper teeth (24b) on which the inclined upper slope (24b-2) is formed are formed, and the upper rotating body (24) is connected and installed by installing an operating lever (24a) on one side, and the fixture (22) and the lower rotating body are connected to each other. It consists of installing elastic springs (25, 26) between the entire body (23) and between the ends of the upper rotating body and the sleeve.

Korean Patent Publication No. 10-2262289 (Patent Document 1), which has the above configuration, has a complicated configuration for rotating the noose 11, and has a problem in that the noose does not rotate smoothly.

Korean Patent Publication No. 10-2262289 (Announcement Date: 2021.06.02.) Korean Patent Publication No. 10-1374687 (Announcement Date: 2014.03.10.) Korean Patent Publication No. 10-1298690 (Publication date: 2013.08.14.) Korean Patent Publication No. 10-1822606 (Announcement Date: 2018.01.22.)

The present invention was invented to solve the problems of the prior art, and the purpose is to:

When removing a polyp that has developed in an organ, the needle that injects a chemical solution into the polyp to inflate it to increase the size of the polyp so that the snare can be easily inserted, and the forward/backward movement of the snare that cuts and removes the polyp is performed accurately, as well as the above. The purpose of the present invention is to provide a medical snare device that precisely rotates the snare and minimizes bleeding in the area cut and removed by the snare, thereby reducing the patient's pain and ensuring rapid recovery.

The configuration of the means for solving the problem of the snare device of the present invention to achieve the above purpose is,

On the same line on both sides of the rear of the main body 100, where the fixture 120 is formed at the rear end, operating tools 430 and 530 for operating the snare operating means 400 and the needle operating means 500 are formed separately, so that the snare operating means and the needle operate. The operating means is configured to operate separately,

Guide holes 130 and 140 are formed in the longitudinal direction of the main body to guide the snare operating means and the needle operating means, and a rotating body coupling portion 150 is formed in the front,

A polyp removal line 320 with a noose 310 installed at the tip and a chemical solution supply line 340 with a needle 330 installed at the tip pass through the rotating body coupling part, and the rotating body 200 is co-rotated from the rotating body coupling part. is installed,

The rotating body has a body entry part 300 that enters the body while accommodating the polyp removal line and the chemical solution supply line and exposes the snare or needle to the outside or enters the inside according to the operation of the snare operating means and the needle operating means. is installed,

The snare operating means includes a snare moving body 410 that moves forward/backward along the main body with the rear end of the polyp removal line installed, a current supply port 420 that supplies current to the snare, and a snare operating tool that moves the snare moving body ( 430) is formed integrally,

The needle operating means 500 includes a needle moving body 510 that moves forward/backward along the main body with a chemical liquid supply port 520 connected to the rear end of the chemical liquid supply line, and an extension connected to the needle moving body. It consists of a part 540 and a needle operation tool 530 formed on the extension part to move the needle moving body.

The medical snare device of the present invention having the above configuration is a needle that inflates the polyp to increase its size by injecting a chemical solution into the polyp so that the snare can be easily inserted when removing the polyp that has developed in the organ as described for the above purpose. In addition, the forward and backward movement of the noose that cuts and removes polyps is carried out accurately, and the rotation of the noose is made precisely, and bleeding in the area cut and removed by the noose is minimized, thereby reducing the patient's pain and speeding recovery. There is an effect that is achieved.

1 is an exploded perspective view illustrating the configuration of a conventional medical snare device;
Figure 2 is an exploded perspective view showing the ollie rotation structure in a conventional medical snare device;
Figure 3 is a perspective view of the medical snare device of the present invention;
Figure 4 is a cross-sectional view of the medical snare device of the present invention;
Figure 5 is a perspective view of the main body of the medical snare device of the present invention;
Figure 6 is a bottom perspective view of the snare operating means in the medical snare device of the present invention;
Figure 7 is an exploded perspective view of the needle operating means in the medical snare device of the present invention;
Figure 8 is a cross-sectional view of the current supply port in the medical snare device of the present invention;
Figure 9 is a cross-sectional view showing the rotating body configuration in the medical snare device of the present invention;
Figure 10 is a perspective view of a polyp removal line excerpt from the medical snare device of the present invention;
Figure 11 is a perspective view of a chemical solution supply line extracted from the medical snare device of the present invention;
Figure 12 is a cross-sectional view of the tip combination in the medical snare device of the present invention;
Figure 13 is a bottom perspective view of the cap from the medical snare device of the present invention;
Figures 14a and 14b are cross-sectional views showing the operational relationship between the snare and needle in the medical snare device of the present invention.

The medical snare device of the present invention supplies a medical solution to a polyp that has developed in an organ in the body to inflate the polyp, inserts a noose into the swollen polyp, inserts it, supplies a high-frequency current, and cuts the polyp to quickly and easily remove the polyp while minimizing bleeding. It is possible to remove, and an embodiment will be described with reference to the attached drawings as follows.

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In the medical snare device of the present invention for quickly and easily removing polyps while minimizing bleeding when removing polyps occurring in organs as described above, the main body 100 has a hollow interior (110) as shown in FIG. 5. ), a fixture 120 is formed at the rear end, and a guide hole 130 is formed to guide the snare operating means 400 along the longitudinal direction of the front body 100 of the fixture 120, and the guide hole On one side of (130), a guide hole 140 is formed to guide the needle operating means 500.

The reason for forming the hollow 110 inside the main body 100 is to mount the snare operating means 400 and the needle operating means 500, which will be described below, and to attach the snare operating means 400 and the needle. This is to enable the operating means 500 to move forward/backward.

In addition, the reason for forming the fixture 120 is to support the main body 100 by inserting the finger of the doctor operating the polyp, and the guide hole 130 that guides the snare operating means 400 is provided. The reason for forming the guide hole 140 to guide the needle operating means 500 is to limit the forward/backward range of the noose operating means 400, and the reason for forming the guide hole 140 to guide the needle operating means 500 is to /This is to limit the reverse range.

If the forward range of the snare operating means 400 and the needle operating means 500 is not limited, the snare operating means 400 and the needle operating means 500 are advanced more than necessary, causing the snare 310 and the needle 330 to move forward. Polyp removal surgery may be difficult because the tip of the body entry portion 300 is exposed to the outside more than necessary, and the polyp removal portion may be damaged by the snare 310 and needle 330, so the snare operating means ( It is preferable that the amount of advancement of the needle operating means 400) and 500 is limited.

In addition, the shape of the fixture 120 described above is preferably formed in a ring shape so that the finger of the doctor performing the polyp removal surgery can be inserted and fixed, but in addition, any shape that can fix the main body 100 with the doctor's finger is possible. possible.

It is preferable that a rotating body coupling portion 150 is formed at the distal end of the main body 100 through which the polyp removal line 320 and the chemical solution supply line 340 pass and the rotating body 200 is installed to idle. This is because When rotating the main body 100 to rotate the noose 310, hold the rotating body 200 installed on the rotating body coupling part 150 with your hand so that the main body 100 can be easily rotated in the desired direction. It is for this purpose.

Additionally, an incision 160 may be formed in the rotary coupling portion 150 to allow the polyp removal line 320 or the chemical solution supply line 340 to enter the rotary coupling portion 150.

In addition, the rotating body 200 of the present invention, as shown in FIG. 9, is coupled to the rotating body coupling portion 150 formed at the tip of the main body 100 to enable idling, and a noose 310 is installed at the tip to remove polyps. The line 320 and the chemical solution supply line 340 equipped with a needle 330 at the tip pass through, and the polyp removal line 320 and the chemical solution supply line 340 move forward/backward.

The reason for installing the rotating body 200, which plays the above role, so that it can rotate idly from the rotating body coupling portion 150 formed at the tip of the main body 100 is to cut the polyp with the noose 310. When inserting the noose 310 into the polyp, the direction of the noose 310 must be rotated to match the direction in which it can be inserted into the polyp. At this time, the polyp is removed by holding the rotating body 200 by hand and rotating the main body 100 in the desired direction. This is to enable the noose 310 to be easily rotated in the desired direction along with the line 320.

One embodiment of the rotating body 200 that acts as described above includes a rotating sphere 210 installed to rotate freely from the tip rotating body coupling part 150 of the main body 100, and a rotating sphere inside the rotating sphere. It is formed integrally with (210), the polyp removal line 320 and the chemical solution supply line 340 pass through it, and a sleeve 220 to which the outer tube 350 is coupled is formed at the tip, and the rear of the sleeve is formed. Inside, a polyp removal line 320 and a chemical solution supply line 340 pass through, and a guide port 230 to which an inner tube 360 is connected is installed at the tip.

In the configuration of the above-mentioned rotary body 200, the rear of the sleeve 220 and the front of the guide sphere 230 are installed in close connection with each other to become one, thereby interlocking with the rotary sphere 210. In order to rotate the snare 310, when the main body 100 is rotated by holding the rotating sphere 210 with the hand, the polyp removal line 320 rotates together with the main body 100, thereby rotating the noose 310. .

However, when the snare 310 is rotated, the snare 310 is exposed to the outside of the body entry portion 300, which will be described below.

In addition, the sleeve 220 and the guide port 230 are preferably formed in a hollow cylindrical shape so that the polyp removal line 320 and the chemical solution supply line 340 pass smoothly, and the sleeve 220 It is preferable to select an interference fit coupling method or a screw coupling method that does not allow for arbitrary separation once coupled with the guide tool 230.

The configuration of one embodiment of the polyp removal line 320, in which the snare 310 is installed at the tip, is hollow on the inside from the snare operating means 400 to the rotating body 200, which will be described below, as shown in FIG. 10. A hard "-" shaped steel wire 321 is installed, and a current-conducting wire 322 penetrates the inner hollow of the steel wire, and one end of the wire 322 passing through the steel wire 321 is a current supply port. It is installed in connection with 420, and a noose 310 is installed at the other end of the wire 322, and a noose 310 is installed on the wire 322 from the end of the steel wire 321 to the part where the noose 310 is installed. It consists of installing a protective tube 323.

In the configuration of one embodiment of the polyp removal line 320, the reason why the steel wire 321 is shaped like a hard “-” shape with a hollow interior is that the wire 322 passes through and forms the snare operating means 400. This is to prevent bending or deformation when moving forward/backward with operation and to move forward/backward in a "-" shape.

In addition, the wire 322 is preferably made of a metal material that can be rotated when the main body 100 is rotated. However, the wire 322 made of the metal material is made of a metal material that can be bent and has elasticity to recover after bending. This is desirable because, when the body entry unit 300 enters an organ of the human body, it can be easily bent and entered along the curve of the organ.

Meanwhile, the wire 322 made of a metal material having the elastic force is tightly coupled to the wire protection tube 323 made of a resin material. This is because when the main body 100 is rotated, the wire 322 is also rotated. By preventing deformation of the wire 322, all of the rotational force of the main body 100 is transmitted to the wire 322, so that the noose 310 rotates precisely according to the exact rotation of the wire 322, and at the same time, the wire 322 This is to prevent the current flowing through ) from being transmitted to the chemical solution supply line 340.

In one embodiment, the noose 310 is configured to be connected to the end of the wire 322, as shown in FIG. 14a, and forms an arc shape when exposed to the outside of the body entry section 300, and is connected to the inside of the body entry section 300. When entering, it is preferable that the arc shape is made of core wires that overlap in a straight line, as shown in Figure 14b. Such core wires are made of a metal material that conducts current and has elasticity.

The reason why the noose 310 of the above-described configuration is made of a core wire (a steel wire thinner than the wire 322) is to ensure that the polyp can be easily cut when the polyp is tied and pulled.

In addition, the snare 310 forms an arc shape when exposed to the outside of the body entry part 300, and when it enters the inside of the body entry part 300, the arc shape overlaps in a straight line. This is because the snare 310 ) has elasticity, so when it is exposed to the outside of the body entry part 300, it forms an arc shape that can be combined by inserting polyps into its original shape, and when it enters the body entrance part 300, it overlaps in a straight line due to elastic force. It will be entered.

In addition, as shown in FIG. 11, the chemical liquid supply line 340 of the present invention is provided with a hard "-" shaped steel wire 341 with a hollow interior from the needle operating means 500 to the rotating body 200, and the A chemical liquid tube 342 penetrates the inside of the steel wire and is connected to the chemical liquid supply port 520. The chemical liquid tube 342 extends from the end of the steel wire 341 to the part where the needle 330 is installed. , and the chemical liquid protection tube 343 is installed on the extended chemical liquid tube.

In the chemical supply line 340 configured as described above, the reason why the steel wire 341 is shaped like a hard “-” shape with a hollow interior is that the chemical liquid tube 342 penetrates and at the same time the needle operating means 500 This is to prevent bending or deformation when moving forward/backward with the operation of , and to move forward/backward in a "-" shape, that is, in the horizontal direction.

And the chemical liquid tube 342 serves to supply the chemical liquid injected from the chemical liquid supply port 520 to the needle 330, and the chemical liquid protection tube 343 serves to accommodate and protect the chemical liquid tube 342. do.

On the other hand, the body entry part 300 of the present invention is connected to the rotating body 200 and enters the body while accommodating the polyp removal line 320 and the chemical solution supply line 340 and uses the snare operating means 400. ) and serves to expose the snare 310 or needle 330 to the outside or enter the inside depending on the operating direction of the needle operating means 500.

As described above, the action of exposing the snare 310 or the needle 330 to the outside or entering the body entry part 300 is that the snare 310 is exposed to the outside of the body entry part 300 as shown in FIG. 14A. When exposed, the needle 330 enters the inside of the body entry part 300, and as shown in FIG. 14b, when the needle 330 is exposed to the outside of the body entry part 300, the noose 310 enters the body. It enters the inside of the entry unit 300.

As shown in Figures 3 and 4, an embodiment of the body entry part 300 that functions as described above includes a snare 310 that accommodates the polyp removal line 320 and the chemical solution supply line 340. ) and an inner tube 360 into which the needle 330 enters and exits, and an outer tube 350 that accommodates a portion of the inner tube 360 at the tip of the rotating body 210.

In one embodiment of the body entry portion 300, the inner tube 360 accommodates and protects the polyp removal line 320 and the chemical solution supply line 340, and supplies the polyp removal line 320 and the chemical solution into the body. It functions to facilitate entry of the line 340 and prevent it from causing harm to the body after entry, and the outer tube 350 protects the connection between the rotating body 200 and the inner tube 360 from being bent. It plays a role.

In addition, at the tip of the body entry portion 300 of the present invention, a snare input/output hole 371 and a needle input/output hole 372 are formed through which the snare 310 and the needle 330 enter and exit, as shown in FIG. 12, A locking jaw 373 is formed at the rear of the needle input/output hole, and a needle guide 374 that guides the needle 330 is installed at the needle input/output hole 372 where the locking jaw is formed at the rear of the tip 370. This is installed.

The reason for installing the needle guide 374 in the configuration of the tip 370 is to ensure that the needle 330 can be correctly drawn out in a "-" shape when entering and exiting the tip of the body entry portion 300. The reason for forming (373) is that the tip of the chemical liquid tube 342 is tied to the locking jaw 373 so that only a certain amount of the needle 330 is drawn out of the body entry part 300, so that it is stable when injecting the chemical liquid into the polyp. This is to enable injection.

In addition, the snare input and output hole 371 and the needle input and output hole 372 are formed with a diameter that allows the snare 310 and the needle 330 to enter and exit smoothly, and the snare input and output hole 371 is the needle input and output hole 372. It was made larger to facilitate entry and exit of the noose 310.

As shown in FIG. 6, the snare operating means 400 of the present invention is provided with a snare moving body 410 that moves forward/backward along the main body 100 with the rear end of the polyp removal line 320 installed, and the snare is A current supply port 420 is installed on one side of the moving object, and a snare operating port 430 is formed on the other side.

The snare operating means 400 configured as described above moves forward/backward along the longitudinal direction of the main body 100 to move the polyp removal line 320 along the forward/backward direction. By moving it, the snare 310 is exposed to the outside of the body entry section 300 or enters the inside of the body entry section 300.

In the configuration of the snare operating means 400 as described above, the snare moving body 410 is fitted and coupled to accommodate a part of the main body 100 and is formed to move along the longitudinal direction of the main body 100. The interior of the is formed in a shape that matches the external shape of the main body 100, allowing the snare moving body 410 to move stably along the main body 100.

The snare moving body 410 as described above moves forward and backward along one side of the main body 100, and is preferably used by combining it to form a shape that matches the shape of one external side of the main body 100.

In addition, the snare operating mechanism 430 is preferably formed in a ring shape on one side of the lasso moving body so that one finger can be inserted. This is because it allows the lasso moving body 410 to be stably moved forward/backward. This is to do so.

In addition, the current supply port 420 is provided with a hollow current supply body 421, as shown in FIG. 8, and a screw hole for fixing the rear end of the polyp removal line is provided at the inner lower part of the current supply body. A fixation guide 422 formed with (423) is inserted and installed, and a fixation hole 424 into which the polyp removal line 320 is inserted and fixed is formed at the lower end of the fixation guide, and the rear end of the polyp removal line is formed in the screw hole. A fixing screw 425 for fixing the part is screwed together, and a current supply piece 426 for supplying electric current is installed in the rear screw hole of the fixing screw.

In the configuration of the current supply port 420, the current supply body 421 is provided with a fixed guide member 422 and a current supply piece 426, and the screw hole 423 of the fixed guide member 422 A fixing screw 425 is installed, and the fixing hole 424 is fixed by inserting a rear part of the polyp removal line 320, and the fixing screw 425 is a polyp removal line inserted into the fixing hole 424. It is to fix the rear of (320). In addition, the current supply piece 426 supplies external current to the snare 310 through the polyp removal line 320.

The needle operating means 500 of the present invention is provided with a needle moving body 510 that moves forward/backward along the main body 100 with the rear end of the chemical liquid supply line 340 installed, and a chemical liquid supply port on one side of the needle moving body. By forming 520 integrally with the needle moving body 510, when the needle moving body 510 moves forward/backward along the main body, the chemical liquid supply port 520 is also linked.

The needle operating means 500 configured as described above is operated by moving the needle operating means 500 forward/backward along the longitudinal direction of the main body 100 using the needle operating tool 530. By moving the chemical solution supply line 340 as much as the guide hole 140, the needle 330 is exposed to the outside of the body entry section 300 or enters the inside of the body entry section 300.

In the configuration of the needle operating means 500, the needle moving body 510 is formed with a fixture 511 to which the "-" shaped steel wire 341, which is a component of the chemical liquid hole line 340, is coupled and fixed, and the upper part of the fixture is formed. A guide portion 512 is formed to guide the polyp removal line 320 to facilitate fixation of the chemical hole line 340 and forward/backward movement of the polyp removal line 320.

In the above configuration of the needle moving body 510, the fixture 511 is for fixing the rear end of the "-" shaped steel wire 341, and the guide part 512 is the needle moving body when the polyp removal line 320 moves forward/backward. It serves as a guide to move forward/backward smoothly without getting caught in (510).

In addition, the chemical solution supply port 520 is formed to have an insertion hole 521 protruding to the outside through which the inlet of a syringe can be inserted into one side of the needle moving body 510 and the medicine can be injected, and the insertion hole 521 has When supplying the chemical solution, it is opened to supply the medicine, and after supplying the chemical solution, it is provided with a stopper 522 that is closed and sealed.

In the configuration of the chemical solution supply port 520, the insertion hole 521 is a place where the inlet of the syringe is inserted so that the chemical solution is supplied to the needle 330 through the chemical solution supply line 340, and the stopper 522 is a place to insert the chemical solution. It is a component that prevents foreign substances from entering the insertion hole (521) when not supplied.

In addition, the needle operating tool 530 is formed by forming handles 531 that can be held by hand on both sides of the needle moving body 510, and the needle operating tool 530 is attached to both sides of the needle moving body 510. The reason for forming it is to allow the needle moving body 510 to be moved by holding it with the selected hand of the right or left hand.

And an extension part 540 is formed between the needle moving body 510 and the needle operating member 530 so that the needle moving body 510 and the needle operating member 530 can be interlocked, and the needle moving body 510 It is desirable to be able to separate and combine from the extension portion 540. The reason is that the needle moving body 510 that injects the chemical solution must be replaced once used.

And in the needle operation tool 530, a coupling part 531 is formed that accommodates a part of the main body 100 and moves along the main body 100, and the coupling part 531 moves a part of the main body 100. The needle moving body 500 is stably moved along the main body 100 by being formed to match a portion of the main body 100 to receive it.

Meanwhile, as shown in FIGS. 3 and 13, a cap 600 is installed on one side of the main body 100 in the area where the needle moving body 510 of the present invention moves (forward/backward) to be coupled separately from the main body 100. When separating and combining the needle moving body 510 from the main body 100, the cap 600 is separated from the main body 100, and after completing the coupling of the needle moving body 510 to the main body 100, the cap 600 is separated from the main body 100. Combine.

And in the main body 100, guiders 170 and 180 that guide the snare operating means 400 and the needle operating means 500 are formed as shown in FIG. 5, and the snare moving body 410 and the needle moving body ( 510) is combined with each of the guiders (170, 180) to form rails (440, 550) that guide the snare operating means (400) and the needle operating means (500) forward and backward in a straight direction, so that the snare operating means (400) and the needle operating means (510) are formed. When the means 500 moves along the main body 100, it does not deviate from its position and stably moves forward/backward in a straight direction.

In addition, in the needle operating means 500, the needle operating means 500 moves arbitrarily when the needle 330 is completely exposed to the outside of the body entry portion 300 and when the needle 330 is completely entered into the body entry portion 300. A control piece 560 is formed with an elastic force to prevent it from happening, a protrusion 570 is formed on the control piece, and a protrusion groove into which the protrusion 570 is coupled is formed in the main body 100, so that the needle operating means ( 500) was prevented from being moved arbitrarily.

In addition, a stop protrusion 450 is formed on the snare operating means 400 to prevent the snare operating means 400 from arbitrarily moving when the snare 310 has completely entered the inside of the body entry portion 300, and the main body A protrusion groove 190 into which the stop protrusion 450 is coupled is formed in (100) to prevent the snare operating means 400 from moving arbitrarily.

In the medical snare device of the present invention as described above, when the snare operating means 400 is advanced from the main body 100 as shown in FIG. 14A, the polyp removal line 320 advances and the snare 310 enters the body. (300) is exposed to the outside, and when the needle operating means 500 is advanced from the main body 100, the chemical solution supply line 340 advances and the needle 330 is exposed to the outside of the body entry portion 300, and the needle ( When 330) is exposed, the snare operating means 400 is retracted from the main body 100 so that the snare 310 enters the inside of the body entry part 300, and when the snare 310 is exposed, the needle operating means ( 500 is moved backwards from the main body 100 so that the needle 330 enters the body entry portion 300.

As described above, the medical snare device of the present invention includes a needle that inflates the polyp to increase its size by injecting a chemical solution into the polyp so that the snare can be easily inserted when removing the polyp occurring in the organ as described in the above effect. , the forward/backward movement of the snare that cuts and removes the polyp is carried out accurately, and the rotation of the snare is made precisely. In addition, bleeding in the area cut and removed by the snare is minimized, thereby reducing the patient's pain and speeding recovery. There is an advantage to this.

100: Body 110: Hollow
120: fixture 130,140: guide hole
150: Rotating body coupling part 200: Rotating body
210: Rotating sphere 220: Sleeve
230: Guide port 300: Entry part into the body
310: Noose 320: Polyp removal line
330: Needle 340: Chemical supply line
350: outer tube 360: inner tube
370: Tip 400: Lasso operating means
410: Lasso moving body 420: Current supply port
430: Noose operating tool 500: Needle operating means
510: Needle body 520: Chemical supply port
530: Needle operation tool 600: Cap

Claims (18)

On the same line on both sides of the rear of the main body 100, where the fixture 120 is formed at the rear end, operating tools 430 and 530 for operating the snare operating means 400 and the needle operating means 500 are formed separately, so that the snare operating means and the needle operate. The operating means is configured to operate separately,
Guide holes 130 and 140 are formed in the longitudinal direction of the main body to guide the snare operating means and the needle operating means, and a rotating body coupling portion 150 is formed in the front,
A polyp removal line 320 with a noose 310 installed at the tip and a chemical solution supply line 340 with a needle 330 installed at the tip pass through the rotating body coupling part, and the rotating body 200 is co-rotated from the rotating body coupling part. is installed,
The rotating body has a body entry part 300 that enters the body while accommodating the polyp removal line and the chemical solution supply line and exposes the snare or needle to the outside or enters the inside according to the operation of the snare operating means and the needle operating means. is installed,
The snare operating means includes a snare moving body 410 that moves forward/backward along the main body with the rear end of the polyp removal line installed, a current supply port 420 that supplies current to the snare, and a snare operating tool that moves the snare moving body ( 430) is formed integrally,
The needle operating means 500 includes a needle moving body 510 formed with a chemical liquid supply port 520 to which the rear end of the chemical liquid supply line is connected, an extension part 540 connected to the needle moving body, and the extension part. A medical snare device, characterized in that it consists of a needle actuating tool (530) formed with a coupling part (531) for moving the needle moving body. According to paragraph 1,
A medical snare device, characterized in that the main body (100) is provided with a cap (600) that separates and couples the needle operating means from the main body.
According to paragraph 1,
The fixture 120 is a medical snare device, characterized in that it is formed in a ring shape so that a finger can be inserted and fixed to the rear end of the main body.
According to paragraph 1,
The rotating body 200 is formed integrally with the rotating sphere 210, which is installed to rotate in place from the distal end of the main body, and the polyp removal line and the chemical solution supply line pass through the inside. A sleeve 220 to which the outer tube 350 is coupled is formed at the tip, and at the rear of the sleeve, a polyp removal line and a chemical solution supply line pass through, and an inner tube 360 is connected to the tip. A medical snare device characterized by installing a sphere (230).
According to paragraph 1,
In the polyp removal line 320, a hard "-" shaped steel wire 321 with a hollow interior is installed from the snare operating means to the rotating body, and a current-conducting wire 322 penetrates the inner hollow of the steel wire. , one end of the wire penetrating the steel wire is connected to a current supply port, a snare 310 is installed at the other end of the wire, and a wire protection tube is provided on the wire from the end of the steel wire to the part where the snare is installed. A medical snare device, characterized in that (323) is installed.
According to claim 1 or 5,
The noose 310 is connected to the end of the wire 322 and forms an arc shape when exposed to the outside of the body entry part. When it enters the inside of the body entrance part, the arc shape overlaps in a straight line and a current passes through it, creating an elastic force. A medical snare device, characterized in that it is formed with a core wire having.
According to paragraph 1,
In the chemical liquid supply line 340, a hard "-" shaped steel wire 341 with a hollow interior is installed from the needle operating means to the rotating body, and a chemical liquid tube 342 penetrates the inside of the steel wire to supply the chemical liquid. It is connected to the sphere, and the chemical liquid tube extends from the end of the steel wire 341 to the part where the needle 330 is installed, and a chemical liquid protection tube 343 is installed on the extended chemical liquid tube. Snare device.
According to paragraph 1,
The body entry portion 300 includes an inner tube 360 through which a noose and a needle enter and exit while accommodating a polyp removal line and a chemical solution supply line, and an outer tube 350 that accommodates a portion of the inner tube at the tip of the rotating body. A medical snare device comprising:
According to claim 1 or 8,
At the tip of the body entry portion 300, a tip 370 through which a snare and a needle enter and exit is installed, and a snare entry and exit hole 371 and a needle entry and exit hole 372 are formed at the tip, and a rear of the needle entry and exit hole is formed. A medical snare device characterized in that a locking jaw (373) is formed, and a needle guide (374) for guiding the needle is installed in the needle input/output hole where the locking jaw is formed.
According to paragraph 1,
The snare moving body 410 is a medical snare device, characterized in that it is fitted and coupled to accommodate a part of the main body and is formed to move along the longitudinal direction of the main body.
According to paragraph 1,
The snare device 430 is a medical snare device, characterized in that it is formed in a ring shape so that a finger can be inserted.
According to paragraph 1,
The current supply port 420 is a fixation guide provided with a current supply 421 that is hollow on the inside, and a screw hole 423 for fixing the rear end of the polyp removal line is formed in the inner lower part of the current supply. (422) is inserted and installed, and a fixing hole 424 for fixing the polyp removal line 320 is formed at the lower end of the fixing guide, and a fixing screw 425 for fixing the rear end of the polyp removal line is formed in the screw hole. A medical snare device characterized in that it is screwed together, and a current supply piece (426) that supplies current is installed in the rear screw hole of the fixing screw.
According to paragraph 1,
A fixture 511 to which the rear end of the chemical solution supply line is fixed is formed on the needle moving body 510, and a guide portion 512 for guiding the polyp removal line is formed on the upper part of the fixture, and the guide portion 512 A medical snare device, characterized in that a chemical solution supply port 520 is formed in the lower part of the .
According to claim 1 or 13,
The chemical solution supply port 520 is formed with an insertion hole 521 protruding outward through which the entrance of a syringe can be inserted into one side of the needle moving body and the medicine can be injected, and the insertion hole is opened when supplying the medicine. A medical snare device, characterized in that it is provided with a stopper 522 that closes and seals after supplying the chemical solution.
According to paragraph 1,
The needle operation tool 530 is a medical snare device, characterized in that it is formed in a ring shape so that a finger can be inserted.
According to paragraph 1,
In the main body 100, guiders 170 and 180 are formed to guide the snare operating means and the needle operating means, and each guider is coupled to the snare moving body and the needle moving body to guide the snare operating means and the needle operating means in a straight line. A medical snare device characterized by forming rails (440, 550) that guide forward and backward.
According to claim 1 or 16,
The needle operating means 500 is formed with a control piece 560 having an elastic force to prevent the needle operating means from arbitrarily moving when the needle is completely exposed to the outside of the body entry section and when the needle is completely entered into the body entry section. , A medical snare device characterized in that a protrusion (570) is formed on the control piece, and a protrusion groove () into which the protrusion is coupled is formed in the main body.
According to paragraph 1,
The snare operating means 400 is formed with a stop protrusion 450 that controls the snare operating means from arbitrarily moving when the snare is completely entered into the body entry section, and the main body is provided with a protrusion groove (450) to which the stop protrusion is coupled. 190) A medical snare device characterized in that it is formed.