KR20150106671A - High-frequency treatment device formed insulation - Google Patents

Abstract

The present invention relates to a high frequency treatment apparatus having an insulator for preventing contact between a front surface of a knife and a normal tissue in an energized state during marking for removing and removing lesion tissue. More particularly, And an insulating member is provided on the curvature surface in order to prevent perforation due to contact between the front curvature surface and the normal tissue during the high frequency current application. Removal and removal of lesion tissue by using a knife It is effective to insulate the entire surface of the knife except the part for marking before it is performed, and to prevent a wound due to puncture or harmful damage from the normal tissue.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high-

TECHNICAL FIELD The present invention relates to a high frequency treatment apparatus in which an insulator is formed, and more particularly to a high frequency treatment apparatus in which an insulator is formed to prevent contact between a front surface of a knife and a normal tissue in an energized state during marking for removal and removal of lesion tissue.

Conventionally, an endoscope is inserted into a body in advance, and a treatment tool is inserted into the body through a channel of the endoscope to cut out a living tissue such as a mucous membrane. In such a cut-off treatment, for example, a high frequency treatment tool as disclosed in Japanese Patent Application Laid-Open No. 4-329944 (Patent Document 1) is used.

The high frequency treatment tool disclosed in Patent Document 1 has an elongated insertion portion and a manipulation portion on the immediate front side. The insertion portion is inserted into the body through the channel of the endoscope. The operation portion is connected to the proximal end portion of the insertion portion. The inserting portion has a flexible tube and an operating wire. The operating wire is inserted into the flexible tube movably in the axial direction. A needle-shaped knife portion (electrode portion) extending in the axial direction is provided at the distal end portion of the operating wire. An operation handle is provided on the operation portion. The operation wire is moved in the axial direction by the operation of this handle. The knife portion is capable of energizing a high-frequency current.

When the operation handle is operated, the operation wire is moved in the axial direction. Through this operating wire, the knife portion is moved from the stored position stored in the flexible tube to the used position protruding out of the flexible tube. In a state in which the knife portion protrudes to the use position outside the flexible tube, a living body tissue contacting the knife portion is energized by applying a high-frequency current to the knife portion.

In the high-frequency wave treatment instrument disclosed in Patent Document 1, a liquid feeding means for feeding a chemical liquid or the like to the base end portion of the insertion portion is provided. Then, the liquid is sent from the liquid feeding means to the tip end side of the flexible tube through the pipe of the flexible tube, and the chemical liquid can be discharged from the opening of the flexible tube to the outside.

In addition, Tsuneo Oyama, et al., 6, "Expansion of the EMR Adaptation: Research and Achievement of Techniques for Batch Removal from the Viewpoint of Size", Chuweon Zhang, Aug. 2002, Vol. 37, No. 9, p1155-1161 Patent Document 1) discloses a high-frequency treatment instrument of another configuration.

This high-frequency treatment instrument has a bent portion formed by bending the tip of a knife portion (electrode portion) on the needle. In this high-frequency treatment instrument, the biotissue is hooked up to the bent portion of the knife portion, and the ablation is performed.

Inoue Haruhiro et al., &Quot; Cap Method ", Gastrointestinal Endoscopic Augmentation Endoscopic Selection Method AtoZ, Sep. 2002, Vol. 14, No. 9, p1301-1302 (Non-Patent Document 2) A high frequency treatment instrument is disclosed. This high frequency treatment instrument has a disk-like electrode portion at the tip of a knife portion (electrode portion) on the needle. In this high-frequency treatment instrument, biotissue is hooked up to the electrode portion on the disk, and the ablation is performed.

When such a high-frequency treatment instrument is used to incise a living tissue, bleeding may occur from the incision site during incision. In such a case, the following treatments are performed in each of the above-described high-frequency treatment instruments. First, in the high frequency treatment tool disclosed in Patent Document 1, the high frequency treatment tool in use is once taken out of the channel of the endoscope. Then, another hemostatic treatment instrument is inserted into the channel of the endoscope to perform hemostatic treatment. When the bleeding stops, the high-frequency treatment instrument disclosed in Patent Document 1 is replaced in the channel of the endoscope to continue the treatment.

In the high-frequency treatment tool disclosed in the non-patent document 1 or the non-patent document 2, the bending portion at the tip of the knife portion or the distal end surface of the disk is pressed against the bleeding point to conduct high- Thus, the bleeding point can be coagulated and hemostatic.

When the incision of the living tissue is performed using the high-frequency treatment instrument, when the amount of bleeding from the incision site is large, the bleeding point becomes unclear and it is difficult to perform hemostatic treatment. In such a case, it is necessary to clean the bleeding site to clarify the bleeding point. However, in a treatment instrument not having a pumping function, the treatment port must be once recovered from the channel of the endoscope, and the liquid for cleaning should be sent through the channel to clean the bleeding site or replace the cleaning catheter in the channel of the endoscope . Therefore, there is a possibility that the operation is labor-intensive and the time required for high-frequency treatment becomes long.

As in the case of the high-frequency wave treatment device disclosed in Patent Document 1, if the distal end of the flexible tube of the insertion portion is opened at the proximal end portion of the insertion portion and the distal end of the flexible tube of the insertion portion is open, the delivery can be performed through the flexible tube. However, if the tip of the flexible tube is wide open, the support of the knife portion becomes unstable and the knife portion may be shaken.

When the knife portion is unstable in this manner, as in the non-patent document 1 or the non-patent document 2, when the knife portion is drawn into the tube of the flexible tube in the high-frequency treatment tool in which the bent portion or the disc is provided at the tip of the knife portion, There is a possibility that some of them will be discharged outward from the outer peripheral surface of the flexible tube. As a result, there is a possibility that the portion of the flexible tube which is outwardly protruded from the outer peripheral surface may damage the inner wall of the channel at the time of insertion into the endoscope.

Japanese Patent Application No. 2003-00113164 discloses a technique in which a high-frequency knife is used, a rod-like portion extending in the axial direction of the flexible sheath is provided in the electrode portion, and the rod- A sliding hole through which the sheath is inserted and retracted in the axial direction of the sheath, and a liquid-feeding opening through which the rod-shaped portion can not enter.

However, such a conventional high-frequency knife has a problem that it is inconvenient for a knife to be formed in a triangular shape and to display a cut portion, and the cut surface can not be scratched cleanly.

In addition, Japanese Patent Application No. 2003-00146478 discloses a technique having the name of EMLA treatment apparatus and EMAR device, which can reduce complications and burden on patients in endoscopic mucosal resection, The sphere and the EMR device are provided with a separating and swelling member so that the separating portion including the lesion portion and the non-inverting portion are peeled and separated by the separating and swelling member to elevate the lesion portion to shorten the operation time .

However, the conventional emulsion treatment apparatus and the emulsion apparatus can not maintain the exfoliated state of the exfoliated part even when the incision is made, and since the knife is formed into a needle shape, the excision area is small, There is a problem that it is difficult to clearly determine the draw-out of the knife.

Japanese Patent Application No. 2005-278473 discloses an endoscopic treatment tool having a treatment section and a proximal end formed with a crest and a curved section, a curved section provided with cutting means, and a plurality of cutting means And a selecting means for selecting a cutting means to be used among the plurality of cutting means.

However, in the conventional MALTHOLOGICAL TREATMENT METHOD and EMERGAL DEVICE, the cutting means is formed close to the irregular elliptical sphere shape, and when the lesion is excised, the resection area is increased more than necessary, and the pain of the patient is burdened, there was.

On the other hand, in Japanese Patent Application No. 2010-018130, according to the technique having the name of an endoscopic treatment tool, a triangular electrode having a triangular shape extending in the radial direction with respect to the first electrode from the proximal end toward the distal end in the axial direction is formed .

However, in such a conventional endoscope treatment instrument, there is a problem that the electrode portion is formed in a triangular shape, and when the lesion is excised, the tube itself is laid down and a sharp portion is sharp and a wound can be caused when it contacts the normal tissue .

In order to solve such a conventional problem, the present applicant has proposed a patent application No. 10-2012-0068660 (name: a high frequency treatment apparatus with an insulator).

In the conventional high frequency treatment device, a plunger is moved forward and backward along a tubular body, and a plunger is coupled to a front surface of a movable sphere having a high-frequency port formed therein. An outer circumferential surface of the plunger And a handle connected to the hook so that the handle is not detached from the front side portion of the body, and a wire connected to the front end of the sub- And an operating portion which is exposed through a tube coupled to the front side of the saline infusion port through a saline infusion port connected to the front side of the plunger, and an arcuate knife is coupled to an end of the wire of the operating portion, By operation, the plunger, auxiliary plunger, wire and knife move forward and backward, and the rotation of the handle causes the wire and knife to rotate It is configured to be.

However, in the conventional high frequency treatment device with an insulator, when a high frequency is applied to the whole area of the knife, the front part of the knife is contacted with the normal tissue during the cutting operation for marking the lesion tissue or for display, .

1. Patent Application No. 10-2012-0068660 (High frequency treatment device with insulator) 2. Japanese Patent Application No. 2010-018130 (endoscopic treatment instrument)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems of the conventional art, and it is an object of the present invention to provide a method of inserting and removing lesion tissues using a knife, And an object of the present invention is to provide a high frequency treatment apparatus in which

Another object of the present invention is to provide an insulating member on the entire surface of a knife by an adhesive method, a fitting method, or a coating method so as to prevent damage to the normal tissue by puncturing or high frequency.

Another object of the present invention is to minimize the volume change of the knife by forming the insulating member in a coating manner, thereby miniaturizing the knife.

In order to achieve the above-mentioned object, the present invention provides a method of controlling an operation of a mobile robot, which comprises a step of moving a plunger, an auxiliary plunger, a wire and a knife forward and backward in a forward and backward movement of a movable plunger, A high-frequency treatment apparatus for removing a lesion tissue from a normal tissue by using a treatment device in which a knife is rotated, inflating a lesion tissue by infusing saline solution, and then removing and removing the lesion tissue by using a high frequency, Wherein the front curvature surface is provided with an insulating member so as to prevent perforation due to contact between the front curvature surface and normal tissue during high frequency current application.

As described above, the present invention uses a knife to excise and remove lesion tissue. It is effective to insulate the entire surface of the knife except the part for marking before performing it, so as not to cause a puncture in the normal tissue or a wound caused by high frequency have.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic overall configuration diagram showing a high frequency treatment apparatus in which an insulator according to the present invention is formed;
FIG. 2A is a partial cutaway view of a high frequency treatment apparatus in which an insulator is formed according to the present invention,
2B is an exploded perspective view of the knife and the insulating member according to the bonding method, FIG. 2B is an exploded perspective view of the knife and the insulating member,
2 (c) is a cross-sectional view of the knife and the insulating member bonded together by an adhesive method, FIG. 2 (b) is a cross-
FIG. 2 (d) is a perspective view in which an insulating coating layer is formed on the upper and lower surfaces and the front surface of the knife, FIG. 2 (b) is a sectional view in which insulating coating layers are formed on the upper and lower surfaces,
FIG. 3 is a cross-sectional view of the portion A of FIG.
Fig. 4 is a sectional view of the portion B in Fig. 2A in a state where the handle and the sub-
5 is a perspective view of a part projecting a state in which a latching groove of a handle is inserted into a latching projection of a hand cover,
6 is an operational view showing a state in which a locking protrusion is engaged with the handle when the handle is rotated;
7 is a cut-away perspective view of the stopper,
FIG. 8 is a drawing of a wire and a knife, an operation of inserting the wire and a knife according to an operation of an operating unit of the high frequency treatment apparatus with an insulator according to the present invention,
9 is an operation diagram of rotating the knife in the direction of rotation of the handle of the high frequency treatment apparatus in which the insulator according to the present invention is formed,
10 is a view illustrating an example of a procedure of performing a resection procedure of a lesion site using the high frequency treatment apparatus with an insulator according to the present invention,
11 is a cut-away perspective view of a stopper according to another embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As shown in FIGS. 1 to 9, in the RF treatment apparatus with the insulator of the present invention, saline is injected to separate lesion tissues and normal tissues to elevate lesion tissues, and then high frequency treatment A knife 41 having an insulating member 46 formed on an entire surface thereof is moved forward and backward by the operation of the movable mouth 20 moving along the body 10 of the operating portion 80, 60 is rotated to rotate the knife 41 so that the periphery of the irregular lesion can be removed and an insulator is formed to prevent the entire surface of the knife 41 from contacting the normal tissue.

The operation unit 80 includes a body 10 in front of a movable mouth 20 having a high frequency port 25 that moves forward and backward along a body 10 having a saline infusion port 15 formed in front of a tube, 10 of the present invention.

Here, the body 10 has a long tube shape, and a first space 11 into which the thumb of the operator is inserted is formed at the rear end.

A handle cover 13 is integrally formed on the front end of the body 10 so as to partially expose the circumference of the handle 60. A locking protrusion 14 is formed on the inner wall of one side of the handle cover 13. [ Or more.

The saline infusion port 15 is integrally formed with the front side body 10 on which the handle 60 is installed and communicates with the internal space 21a through which the bristles 21 pass, .

A sealing ring 21b through which the plunger 21 is inserted is inserted into the space between the rear of the body 10 on which the saline infusion port 15 is formed and the handle 60, And to prevent it from flowing into the interior of the body (10).

In the present invention, the locking protrusions 14 are formed in two and described as an example, but they may be composed of one or more than one.

That is, the handle cover 13 is a track-shaped barrel shape, the exposure space 12 is formed on both sides, and the handle cover 13 may be made of synthetic resin (plastic) with a small thickness.

The high frequency port 25 is connected to a high frequency connection line 201 of the high frequency oscillator 200 for receiving a high frequency from a high frequency oscillator 200 used for medical use. And is transmitted to the knife 41 sequentially through the plunger 21, the plunger 50, and the wire 40. [

In addition, the movable mouth 20 is coupled to the body 10 on the outer circumferential surface and is configured to slide in the forward and backward directions along the longitudinal direction of the body 10, 3 spaces 23 and 24 are integrally formed.

At this time, an auxiliary stopper (50) having an engagement surface (51) on the outer circumferential surface is rotatably connected to the front end of the push rod (21) of the movable mouth (20).

The engaging surface 51 of the above-described auxiliary push rod 50 is formed in a track shape of which the upper and lower surfaces are horizontal and the left and right side surfaces are rounded.

In order to rotate the plunger 21 and the plunger 50, a front end of the plunger 21 constitutes a catch ball 22 having a diameter larger than the diameter of the plunger 21.

The tapered end 71 is formed at one end so that the stopper ball 22 is caught by the push rod 21 and the connection pipe 72 having a larger diameter than the engagement ball 22 is formed on the opposite side. (70).

Meanwhile, an auxiliary plunger 50 is fixedly connected to the connection end 72 of the connection pipe 70.

When the auxiliary push rod 50 is rotated, the auxiliary push rod 50 and the connecting pipe 70 are rotated without being separated from the push rod 21.

A wire 40 connected to the front end of the auxiliary push rod 50 constitutes an operating part 80 exposed through a tube 30 coupled to the front of the body 10. [

At this time, the wire 41 is formed in a single strand shape, such as wire, which is flexible and has good transmission of rotational force to transmit the rotational force generated when the handle 60 is rotated to the knife 41 without loss of rotational force.

The body 10 and the tube 30 are formed such that one end of the tube 30 is formed at the front end of the body 10 and the tip 16 is formed at the front end of the body 10, Thereby forming the inclined end 16a.

The end of the tube 30 is extended and pushed so as to enclose the water or the inclined end 16a of the tip 16 and then a cap 31 having a center hollow cap shape and a female thread is formed on the inner circumferential surface of the body 30 10 and the stopper 31 are screwed together.

At this time, the stopper 31 has a tapered step 31b having an inclination so as to press the tube 30 inserted in the inclined end 16a to the rear of the female helical end 31a to be fastened to the male end 16, And a cover end 31c which can partly cover the tube 30 to the rear of the pressure gradient end 31b.

That is, when the male thread 31 is fastened by the male thread 16 and the stopper 31, the stopper 31 pushes the end of the tube 30, which is inserted into the inclined end 16a, So that the tube 30 and the body 10 can be pressure-bonded so as to be sealed without being separated.

At this time, a part of the tube 30 or the front end of the tube 30 is formed to be transparent so that the operation of drawing out the knife 41 from the inside of the tube 30 can be confirmed.

Herein, the saline infusion port 15 is configured to receive saline to separate the normal tissue from the normal tissue before the lesion is excised. The saline solution tube 300 for supplying saline solution is provided before the indication procedure for the ablation procedure. .

That is, the wire 40 is fixedly connected to the front end of the auxiliary push rod 50.

In addition, an arc-shaped knife 41 is coupled to an end of the wire 40 of the operation unit 80.

The knife 41 is integrally formed with a half-moon shaped blade 43 in front of the annular body 42 connected to the wire 40.

An insulation member 46 is installed on the front curvature surface 43b except for both ends 43a of the knife 41 to prevent puncturing due to contact between the front curvature surface 43b and the normal tissue during high- .

Here, the insulating member 46 is formed in a shape of a front curvature surface 43b of the knife 41, and may be installed by an adhesive method or an insertion method, and it is preferable to use an adhesive which is harmless to a human body when using an adhesive method something to do.

At least one fitting protrusion 44 is formed on the front curved surface 43b of the knife 41 and a fitting groove 46a to be fitted in the fitting protrusion 44 is formed in the insulating member 46, Or the like.

The insulating member 46 is formed by forming an insulating coating layer 47 using any one of ceramics, sapphire, polymer, glass, and Teflon on the front curvature surface 43b of the knife 41, The coating layer 47 covers a part of the upper / lower surface 43c except for the front curvature surface 43b of the knife 41 and both ends 43a so that the knife 41 can be made lightweight Feature.

That is, by forming the insulating coating layer 47 on the front curvature surface 43b and the upper / lower surface 43c of the knife 41, the normal tissue contacts the front curvature surface 43b or the upper / There is a feature to prevent the occurrence of perforations and scars due to high frequencies.

In addition, the insulating member 46 may be formed of any one of ceramics, sapphire, polymer, and glass, and may have different application ranges depending on manufacturing conditions and conditions.

That is, the knife 41 is configured to leave a point-like mark on the lesion tissue in a state where a high frequency is supplied to indicate a position to be cut along the periphery of the lesion through both ends 43a, (43) are formed so as to correspond to both sides, and are configured to be cut off by using a high frequency along cutting marks through both ends (43a).

It is preferable that the both ends 43a are formed in a semicircular shape so that the display shape and the shape of the cutout position are clarified when the cutout position is displayed.

The handle 60 having the engagement hole 61 formed at the center thereof to be fitted to the outside of the auxiliary pusher 50 is not detached from the front side portion of the body 10.

At this time, the outer circumferential surface of the handle 60 is formed with the support grooves 62 along the outer circumferential surface to prevent sliding with the finger during rotation.

The center of the cylindrical stopper 90 is connected to the annular body 42 of the knife 41 by means of the annular body 42. The annular body 42 is connected to the annular body 42, And the annular body 42 of the wire 40 and the knife 41 is configured to be connected by the connecting pipe 45. [

The stopper 90 has a cylindrical through-hole 92 formed at the center thereof with a through-hole 91 through which the annular body 42 passes.

The outer circumferential surface of the through hole 92 and the inner circumferential surface of the stopper 90 are connected by a rib 93 to form a saline solution passage 94 between the ribs 93.

As shown in FIG. 11, in another embodiment, the stopper 90 is formed on the inner circumferential surface so as to protrude toward the center so that a plurality of ribs 93 do not come into contact with each other.

A through space 95 through which the annular body 42 passes is formed between the ends of the plurality of ribs 93 facing each other.

The end of the rib 93 of the stopper 90 constitutes a curved end 93a which is depressed outward so as to surround the outer circumferential surface of the annular body 42 so as to minimize movement during movement of the annular body 42 Respectively.

The saline solution passage 94 is connected to the saline solution inlet port 15 so that when the saline solution is supplied, the saline solution is discharged through the inside of the tube 30 to the outside of the tube 30 will be.

At this time, when the body 10 is moved forward, the stopper 90 is engaged with the through hole 92 of the stopper 90 so that the knife 41 is exposed to the outside of the tube 30 Thereby limiting the exposure length.

That is, in the present invention, the plunger 21, the auxiliary plunger 50, the wire 40 and the knife 41 are operated forward and backward by the forward and backward movement of the movable member 20, The auxiliary push rod 50 slides through the corresponding hole 61 of the handle 60 and the handle 60 is rotated so that the engaging surface 51 and the engaging hole 61 are engaged with each other The knife 41 is rotated together with the auxiliary pushrod 50 and the wire 40 being rotated.

The procedure and operation of the high frequency treatment apparatus 100 with the insulator of the present invention will be described below.

As shown in FIGS. 1 to 10, the high frequency treatment apparatus 100 with the insulator is used as an example of a procedure for removing a lesion tissue such as a gastric ulcer that is developed after cancer is removed.

A thumb is inserted into the first space 11 of the body 10 of the RF treatment apparatus 100 having the insulator and the second and third spaces 23 and 24 of the movable mouth 20 The index finger and the stop finger are respectively inserted and the body 10 and the movable mouth 20 are pulled together so that the knife 41 is inserted into the tube 30.

The high frequency connection line 201 is connected to the high frequency port 25 of the movable mouth 20 so as to receive a high frequency from the high frequency oscillator 200.

Thereafter, a saline solution pipe 300 for supplying physiological saline solution is connected to the saline solution injection port 15.

Next, a separate endoscope is firstly inserted into the inside of the human body, and the tube 30 is inserted into the inside of the human body after confirming the onset position of the gastric ulcer to be resected.

Next, the end of the tube 30 of the operation part 80 is moved to the vicinity of the gastric ulcer lesion tissue from the outside of the human body through the endoscope, and then the high frequency oscillator 200 is operated, (50), the wire (40), and the knife (41).

At this time, the knife 41 is moved forward by moving the pushing piece 21, the pushrod 50, and the wire 40 so that the knife 41 is exposed to the outside of the tube 30, Both ends 43a of the lesion are displayed in a dotted form along the periphery of the lesion.

Here, the knife 41 is easily exposed to the outside from the inside of the transparent tube 30 through an endoscope.

Thereafter, the surrounding tissues around the lesion are partially cut to the submucosal layer located below the mucosal layer using the knife 41, and when the saline is supplied in a state in which the end of the tube 30 is in close contact with the partially cut portion, Is discharged through the tube (30) while being discharged at a proper pressure into the saline solution passage (94), thereby injecting physiological saline through a partially cut gap to prevent reattachment of the incised tissue, And the incisional tissue can easily be separated.

Alternatively, the surrounding tissue of the lesion may be partially cut to the submucosal layer located under the mucosal layer using the knife 41, and then the knife 41 may be inserted into the tube 30, When the saline solution is supplied in a state in which it is closely contacted with the part where the tip is partially cut, the saline solution flows through the tube 30 while being discharged to the saline solution passage 94 at an appropriate pressure, and the saline solution is injected through a partially- It is possible to prevent the reattachment of the tissue, and at the same time, the excised tissue can be easily exfoliated and the dissected tissue can be easily separated.

Next, one end of both ends 43a of the knife 41 is brought into contact with the gastric mucosal layer to a position marked on the lesion portion raised by injection of physiological saline in a state where the high-frequency oscillator 200 is operated and high frequency is supplied .

At this time, a portion of the mucosal layer and submucosal layer contacting the end 43a of the gastric mucosal layer is excluded by the high frequency supplied to the knife 41.

Here, the knife 41 is rotated or moved back and forth during the marking operation for cutting off the lesion site and the excision of the lesion tissue. An insulating member 46 is installed on the front curvature surface 43b, The normal tissue is not affected by the high-frequency waves by the insulating member 46, so that it does not cause scratches such as puncturing and marking in the normal tissue.

The maximum length of the knife 41 may be adjusted by adjusting the length of the connection pipe 45 to the stopper 90. The maximum length of the knife 41 may be adjusted by adjusting the exposure length of the knife 41 by moving the movable mouth 20 forward, To the distance that it can not advance due to the engagement with the through-hole (92)

The reason for limiting the exposure length of the knife 41 is to prevent the knife 41 from being damaged due to high frequency by contacting the knife 41 to the normal tissue due to movement of the operator to the front side of the excessive body 10, And is prevented from penetrating by the knife 41 supplied with a high frequency.

Here, the knife 41 is moved along the lesion site while being cut. In order to move the cut-off direction of the lesion irregularly or at a right angle, the knife 41, which rotates the handle 60 in a desired direction to contact the gastric mucosa, It is possible to simply adjust the traveling direction of the vehicle.

When the handle 60 is rotated, the auxiliary plunger 50 is rotated together with the engagement surface 51 of the auxiliary plunger 50 by the engagement hole 61 of the handle 60, The knife 41 is rotated together with the rotation of the auxiliary push rod 50 and the wire 40 without rotating the push rod 21 so that the connection pipe 70 connected to the back of the push rod 50 is idled with the push rod 21 wrapped around It will rotate.

When the handle 60 is rotated to turn the knife 41, the latching protrusion 14 of the handle cover 13 is inserted into the latching groove 63 of the handle 60, The knife 41 is not rotated to the original position due to the restoring force of the wire 40, and the turning position is fixed.

That is, the handle cover 13 is formed of a thin synthetic resin material so that when the handle 60 is rotated, the surface of the handle cover 13 on which the engagement groove 63 is not formed is in contact with the engagement protrusion 14, When the engaging protrusion 14 is inserted into the engaging groove 63 after the cover 13 is expanded outwardly, it is restored to its original position by its own elastic force.

Thereby, there is no inconvenience that the handle 60 is fixed so as not to rotate in order to fix the turning position of the knife 41, so that the operation is simplified.

When the lesion is cut using high frequency while the knife 41 is moved and rotated, the gastric mucosal tissues due to the irradiation of the high frequency are not smoothly cut but rough, and the restoration of the resection site is delayed Further, contamination may be additionally generated. In the present invention, the rough end portion 43a of the knife 41 is used to smoothly and scrape off the rough cut surface, thereby preventing additional contamination on the cut portion, .

Accordingly, the lesion site can be excised along the end 43a of the knife 41, so that the resection area is wider than that of the saliva used in the conventional technique, thereby greatly shortening the procedure time And it is possible to relieve the burden on both the practitioner and the patient.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Various changes and modifications may be made by those skilled in the art.

10: body 11: first space
13: handle cover 14:
15: Saline infusion port
20:
22: Stuck ball 23: Second space
24: third space 25: high frequency port
30: tube 40: wire
41: knife 42: annular body
43: blade 43a: end
43b: front curvature surface 44:
45: connector 46: insulating member
46a: fitting groove 47: Teflon coating layer
50: Auxiliary pin
51: engaging surface 60: handle
61: engagement hole 62: support groove
63: latching groove 70: connector
71: tapered end 72: connection end
80: actuating part 90: stopper
91: through hole 92: through hole
93: rib 94: saline passage
100: Operation part 200: High frequency oscillator
201: High frequency wire 300: Saline tube

Claims (5)

The plunger 21, the plunger 50, the wire 40 and the knife 41 are operated forward and backward by the forward and backward movements of the movable member 20 to connect the plunger 50 and the wire 40 The high frequency treatment device 100 in which an arc-shaped knife 41 connected to the end of the wire 40 is rotated by the rotation of the handle 60 is used to inject saline to separate the lesion tissue and the normal tissue, In a high-frequency treatment device for removing and removing high-frequency waves using a high frequency,
The front curvature surface 43b excluding both ends 43a of the knife 41 is provided with an insulating member 46 for preventing perforation due to contact between the front curvature surface 43b and the normal tissue during high- And an insulator is formed on the surface of the substrate. The insulator according to claim 1, wherein the insulating member (46) is formed in a shape of a front curvature surface (43b) of the knife (41) and is installed by an adhesive method or a fitting method. Formed high frequency treatment device. [3] The apparatus according to claim 2, wherein at least one fitting protrusion (44) is formed on the front curved surface (43b) of the knife (41)
Wherein an inserting groove (46a) to be fitted in the fitting protrusion (44) is formed in the insulating member (46) so as to be fitted in the inserting member (46). The high frequency treatment apparatus according to any one of claims 1 to 3, wherein the insulating member (46) is formed of any one of ceramics, sapphire, polymer, glass, and Teflon. The insulator according to claim 4, wherein the insulating member (46) is made of ceramic, sapphire, polymer, glass, Teflon, or the like on a portion / lower surface (43c) of the knife (41) excepting the front curved surface (43b) The insulating coating layer (47) is formed by using any one of the insulating coating layer (47) and the insulating coating layer (47).

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