KR20160043257A - Apparatuses of minimally invasive plasma generating device with coolant inducement in multi-tip electrode - Google Patents

Abstract

The present invention provides a minimally invasive plasma generating device, and a method for removing a human tissue using the same. The minimally invasive plasma generating device comprises: an inductive pipe; a plasma electrode inserted inside the inductive pipe; a coolant inlet installed in one side of the inductive pipe, and injecting a coolant to the inductive pipe; a coolant passage unit provided inside the inductive pipe, and having the coolant flowed therein; and a coolant collection unit for collecting the coolant discharged outside the inductive passage through the coolant passage unit to the inside of the inductive pipe again, thereby preventing human tissue hardening and carbonizing, and being safe to a patient.

Description

TECHNICAL FIELD [0001] The present invention relates to a micro-invasive plasma generating device having an inter-electrode cooling medium induction flow path,

The present invention relates to a micro-invasive plasma generator for use in decomposing human tissues, and more particularly, to a micro-invasive plasma generator that takes into account electrode and peripheral cooling.

In general, disc herniation, well known as the lumbar disc, is the compression of the nerve by the disc. The intervertebral disc, which acts as a buffer between the vertebrae and the vertebrae, is a region where the force is concentrated when lifting a heavy object and contains a lot of moisture. The intervertebral disc consists of the nucleus pulposus and the surrounding fibrous rings. When the disc is overloaded due to severe trauma or misalignment, a part of the nucleus pulposus or fibrous ring protrudes and presses the nerve near the spinal cord. Therefore, pain in the back and legs is caused.

Methods of treating these pain can be divided into conservative and therapeutic methods. Conservative therapies include absolute stabilization, use of anti-inflammatory analgesics, and thermal therapy. However, if treatment is not effective for a certain period of time, treatment will be used. In the method of using the treatment, when the nucleus constituent material inside the intervertebral disc is partially removed, the pressure inside the intervertebral disc is reduced and the property of returning the protruding portion to the original state can be used.

Examples of the method for removing the nucleus constituent material include a method of injecting the drug into the nucleus, a method of treating after dissection, a method of removing the nucleus using a laser, and the like. The method of injecting the drug into the nucleus is a method of chemically dissolving the nucleus pulposus through the drug, and the method of treating after the incision is a surgical treatment method in which the nucleus is removed by vacuum suction after cutting with a needle saw, The method is a non-therapeutic procedure that burns the nucleus using heat to lower the pressure inside the nucleus and sends the escaped nucleus back to the inside of the fiber.

<Prior Art Literature>

1. Japanese Unexamined Patent Publication No. 2008-541878 (November 27, 2008)

2. U.S. Published Patent Application No. 2005-0273093 (2005.12.08)

However, these conventional methods for treating herniated discs are dangerous to patients because they involve resection of the spinal nerve to remove the nucleus pulposus, and because of the strong linearity of the laser, the treatment area can not be treated intensively, and hardening and carbonization . In particular, caution should be exercised in the case of nucleus pulposus because it does not heal when inflammation occurs due to carbonization.

It is an object of the present invention to provide a micro-invasive plasma generating apparatus for preventing hardening and carbonization of human tissue and being safe for a patient. However, these problems are exemplary and do not limit the scope of the present invention.

According to an aspect of the present invention, there is provided a plasma display apparatus comprising: an induction tube; a plasma electrode inserted in the induction tube; a cooling medium inlet provided at one side of the induction tube to inject the cooling medium into the induction tube; And a cooling medium recovery unit for recovering the cooling medium discharged from the induction pipe through the cooling passage unit into the induction pipe again.

In the micro-invasive plasma generator, the plasma electrode may include a dielectric, a plasma generating part inserted into the user body, and a coupling part positioned between the dielectric and the plasma generating part.

In the micro-invasive plasma generator, an opening through which the cooling medium injected from the one side is discharged may be formed on the other side opposite to the one side of the induction pipe.

In the micro-invasive plasma generator, a guide passage portion for guiding the cooling medium to the cooling medium recovery portion may be formed on one side of the opening.

The micro-invasive plasma generator may further include a cooling medium processing unit installed at one side of the induction pipe and capable of discharging the cooling medium recovered from the cooling medium recovery unit to the outside of the induction pipe.

In the micro-invasive plasma generator, the cooling medium may include saline.

In the micro-invasive plasma generator, the cooling medium moves through the cooling channel portion and is discharged to the other opening, thereby cooling the plasma electrode or the human body tissue.

The micro-invasive plasma generator may include a fixing unit for fixing the plasma electrode in the induction tube while closing a space between the plasma electrode and the induction tube at one side of the induction tube.

The micro-invasive plasma generator may further include a support unit configured to be positioned on an outer circumferential surface of the induction tube.

According to an embodiment of the present invention as described above, it is possible to implement a micro-invasive plasma generating apparatus and a method of removing a human tissue using the apparatus, which prevent hardening and carbonization of a human tissue and are safe for a patient. Of course, the scope of the present invention is not limited by these effects.

1 is a side view schematically showing an apparatus for generating a micro-invasive plasma according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view schematically showing a cross-section of a micro-invasive plasma generator taken along a line II-II of FIG. 1 according to an embodiment of the present invention.
3 is a cross-sectional view schematically showing one surface of a micro-invasive plasma generator according to another embodiment of the present invention.
4 is a cross-sectional view schematically showing a section taken along the line III-III in Fig.
5 is a partial enlarged view schematically showing one end of the plasma electrode cooling apparatus shown in Fig.
FIG. 6 is a graph showing the sustainable time of the microinvasive plasma generating devices according to the experimental examples of the present invention.
FIG. 7 is a graph showing the maximum temperature of a swine nucleus measured using a thermo couple during the operation of the microinvasive plasma generating apparatus according to the experimental examples of the present invention. FIG.
8 is a cross-sectional view schematically showing a cross section taken along the line II in Fig.
9A and 9B are views schematically showing a microinvasive plasma generator according to Experimental Examples 1 and 2 of the present invention.
10A, 10B, and 10C are views schematically showing a microinvasive plasma generator according to Experimental Example 3 of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, Is provided to fully inform the user. Also, for convenience of explanation, the components may be exaggerated or reduced in size.

In the following embodiments, the x-axis, the y-axis, and the z-axis are not limited to three axes on the orthogonal coordinate system, but can be interpreted in a broad sense including the three axes. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

1 is a side view schematically showing an apparatus for generating a micro-invasive plasma according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a micro-invasive plasma generator according to an embodiment of the present invention taken along the line II- Fig. 5 is a cross-sectional view schematically showing a cross section of Fig.

1 and 2, an apparatus 200 for generating micro-invasive plasma according to an embodiment of the present invention includes an induction tube 110, a plasma electrode 120, a cooling medium inlet 140, a cooling channel 130 And a cooling medium recovery unit 170.

For example, a plasma electrode 120 inserted in the induction pipe 110, a cooling medium inlet 140 installed at one side of the induction pipe 110 to inject the cooling medium into the induction pipe 110, The cooling medium flowing through the cooling medium channel part 130 and the cooling channel part 130 which are provided in the induction pipe 110 and are discharged to the outside of the induction pipe 110 are collected again into the induction pipe 110 And a cooling medium recovery unit 170.

The apparatus 200 for generating micro-invasive plasma according to embodiments of the present invention may further include a plasma electrode 120 disposed on one side of the induction pipe 110 while closing a space between the plasma electrode 120 and the induction pipe 110, And a support 160 formed of a structure capable of being positioned on the outer circumferential surface of the induction pipe 110. [

The induction pipe 110 may include a plasma electrode 120 and an inner diameter of the induction pipe 110 may be larger than a diameter of the plasma electrode 120. A cooling medium inlet 140 may be formed in the plasma electrode 120.

The cooling channel portion 130 is formed between the plasma electrode 120 inserted into the induction pipe 110 and the induction pipe 110 by the induction pipe 110 having an inner diameter larger than the diameter of the plasma electrode 120. [ Or a cooling medium recovery unit 170 may be formed.

A cooling medium inlet 140 may be formed at one side of the induction pipe 110 and a diameter of the cooling medium inlet 140 may be formed to be similar to the diameter of the induction pipe 110 .

And an opening through which the cooling medium injected from the one side is discharged may be formed on the other side opposite to the one side of the induction pipe 110. At this time, the other side of the induction tube 110 may correspond to a portion injected through the human tissue.

Generally, when a plasma is generated through the plasma electrode 120 in a human body, the temperature of the human body tissue is increased, and excessive temperature rise may cause hardening or carbonization of the human body tissue. When the hardening of the human tissue occurs, the hardness of the human tissue increases due to the moisture release and protein denaturation in the human tissue, and the movement of the micro-invasive plasma generator 200 inserted into the human tissue may be restricted. Therefore, there is a problem that the temperature of the human tissue must be lowered so that hardening or carbonization does not occur because the practitioner is not free to decompose the human tissue.

However, the apparatus for generating a micro-invasive plasma according to the present invention can solve the above-mentioned problems. For example, as the cooling medium is injected into the human body tissue, it is possible to prevent the hardening and carbonization of the human body while increasing the decomposition rate by suppressing the desorption of water and the rise in temperature during decomposition of the human body tissue.

5 is a partial enlarged view schematically showing one end of the plasma electrode cooling apparatus shown in Fig.

Referring to FIG. 5, the other end of the micro-invasive plasma generator 200 may be pointed with a smaller cross-sectional area in the direction of extension (+ x direction) of the induction pipe 110. That is, it can be manufactured so that it can be easily made to approach the human tissue through the fibrous ring surrounding the human tissue by being sharpened at the peak.

The maximum thickness of the induction tube that can reach the internal human tissue without damaging the fibrous ring protecting the human tissue is 3 mm. Therefore, the diameter of the induction pipe 110 of the plasma electrode cooling apparatus 100 of the present invention can be made, for example, 3 mm or less, and the diameter of the induction pipe 110 It is possible to prevent damage to the fibrous ring.

The cooling medium injected into the cooling medium inlet 140 passes through the cooling passage 130 and is discharged to the human body through the opening formed on the other side of the induction pipe 110. The plasma medium 120 and the plasma electrode 120 ) The temperature at the periphery, e.g., the tissue, can be lowered.

More specifically, when the cooling medium is continuously supplied through the cooling medium inlet 140, the cooling medium continuously flows through the cooling passage portion 130 and is discharged to the other side of the induction pipe 110, The electrode 120 can be cooled. This efficient cooling of the plasma electrode 120 can help to stably generate plasma.

In addition, the cooling medium moved along the cooling channel portion 130 may be discharged through the opening at the other end of the induction pipe 110 and injected into the human body tissue, thereby lowering the temperature of the human body tissue.

Meanwhile, the cooling medium, which is discharged through the opening at the other end of the induction pipe 110 and injected into the human body, may be recovered into the induction pipe 110 through the cooling medium recovery unit 170. The cooling medium recovery unit 170 may recover the cooling medium injected into the human tissue to solve the problem of pressure increase due to the cooling medium injection.

For example, the cooling medium is discharged through the opening at the other end of the induction pipe 110 along the cooling channel portion 130 of the induction pipe 110, and the discharged cooling medium is again supplied through the cooling medium recovery portion 170 And can be recovered to the inside of the induction pipe 110. The micro-invasive plasma generator 200 may further include a cooling medium processing unit (not shown) capable of discharging the cooling medium recovered from the cooling medium recovery unit 170 to the outside of the induction pipe 110 . The cooling medium processing unit may be connected to one side of the induction pipe 110, for example.

On one side of the opening, an induction conduit 180 for guiding the cooling medium to the cooling medium recovery unit 170 may be formed.

FIG. 3 is a cross-sectional view schematically showing one surface of a micro-invasive plasma generator according to another embodiment of the present invention, and FIG. 8 is a cross-sectional view schematically showing a cross section taken along line I-I of FIG.

3 and 8, the induction passage 180 includes the cooling medium, which is discharged to the periphery of the electrode through the opening at the other end of the induction pipe 110 along the cooling passage 130, ) To be recovered. In addition, the guide passage 180 may be formed in various shapes on one side of the opening. For example, the induction passage 180 may be formed in a long passage shape so that the cooling medium inlet 140 and the cooling medium recovery unit 170 are connected.

The fixing part 150 may serve to fix the plasma electrode 120 in the induction pipe 110 while closing a space between the plasma electrode 120 and the induction pipe 110 at one end of the induction pipe 110 have.

For example, when the cooling medium is injected into the fixing unit 150, a gap is generated and a pressure is generated between the gaps of the gap, so that the plasma electrode 120 included in the micro- The problem of being separated from the electrode cooling apparatus 100 can be prevented in advance. In addition, the fixing portion 150 can prevent the cooling medium from being injected into the body tissue through the opening formed on the other side of the induction pipe 110 and coming out to the rear side.

The supporting part 160 may be a structure that can be grasped on the outer circumferential surface of the induction pipe 110. The operator can easily and stably perform the treatment for inserting the micro-invasive plasma generator 200 into the human tissue by grasping the support part 160. [ For example, although the supporting part 160 has a circular annular shape in FIG. 1, the present invention is not limited thereto. The supporting part 160 may be formed in various shapes that can be grasped.

The plasma electrode 120 may include a dielectric 126, a plasma generating portion 122, and a coupling portion 124. The plasma generating part 122 may be realized with a metal material. For example, the melting point is about 3387 ° C, which belongs to the highest part of the metal, and can be realized with good tungsten with high density, strength and elastic modulus. In addition, the plasma generating unit 122 is not limited thereto, and may include platinum or the like.

4 is a cross-sectional view schematically showing a section taken along the line III-III in Fig.

Referring to FIGS. 2 and 4, a coupling part 124 to which the plasma generating part 122 can be coupled may be formed in the plasma electrode 120. The plurality of engaging portions 124 may be formed of, for example, a dielectric 126 formed of alumina having high heat resistance. The coupling portion 124 is formed through the dielectric 126 and the diameter of the portion contacting the cell tissue (the right side of FIG. 4) is formed to be similar to the diameter of the plasma generating portion 122, It is possible to prevent penetration into the inside of the housing 200.

In addition, the cooling medium can flow through the cooling channel part 130 formed inside the plasma electrode 120 and can contact the surface of the plasma electrode 120. The cooling medium may be continuously supplied through a cooling medium inlet (refer to 140 in FIG. 1) installed at one side of the induction pipe 110, and the cooling medium may be supplied to the cooling medium recovery unit 170 to the induction tube 110 again.

Accordingly, a cooling medium may always be present in the periphery of the plasma electrode 120, and a cooling medium may be present in the vicinity of the electrode electrode. This cooling medium can effectively cool the entire plasma electrode 120 and the micro-invasive plasma generator 200, and can also help generate plasma.

The cooling channel unit 130 and the cooling medium recovery unit 170 according to the embodiments of the present invention may be formed in the induction pipe 110 as shown in FIG. A cooling medium passage portion 170 may be formed between the plasma electrode 120 inserted into the induction pipe 110 and the induction pipe 110. [

In addition, the description of the induction pipe 110, the plasma electrode 120, the plasma generating unit 122, and the cooling channel unit 130 is the same as that described with reference to FIGS. 1 and 2, and will not be described here.

The micro-invasive plasma generator 200 described above can dissolve the human tissue using plasma, thereby effectively depressurizing the human body tissue, and at the same time, solidification is possible. Further, the treatment can be completed in a short time. By injecting the cooling medium around the plasma electrode 120, it is possible to increase the decomposition rate by suppressing the desorption of moisture and the rise in temperature during decomposition of the human tissue. In addition, hardening and carbonization of the human body can be prevented through the micro-invasive plasma generator 200.

The human tissue may include, for example, a tumor or a cancerous tissue, a nucleus pulposus, an intravascular thrombus, a fibroid, a stenosis or the like. The human tissue may be cooled in a process of decomposing or removing plasma using the cooling medium discharged through the other side of the induction pipe 110 of the micro-invasive plasma generator 200.

On the other hand, the above-described cooling medium may include, for example, saline, and may include any other material as long as it is harmless to the human body. Further, it may be supplied to the human body in the form of a liquid or a gas and may include various forms.

The temperature control of the plasma treatment through the inflow of the cooling medium mentioned in the embodiments of the present invention can be applied not only to decomposition of human tissues but also to various biological fields and heat sensitive surface modification changes. For example, the present invention may be applied to a change in the surface modification of a plastic thin film capable of sterilizing and thermally denaturing animals / human organs using plasma.

Hereinafter, experimental examples are provided to facilitate understanding of the present invention. It should be understood, however, that the following examples are for the purpose of promoting understanding of the present invention and are not intended to limit the scope of the present invention.

(Experimental Method)

The swine tubing most similar to human pulmonary tubing was injected with fixed voltage of 280 V and saline flow rate of 1 lpm. Next, the maximum temperature of the pig's pouch was measured using the thermo-couple during the duration of the procedure and during the procedure. At this time, the treatment was stopped when carbonization or hardening occurred.

Experimental Example 1)

The experiment was carried out in the same manner as the above-described experimental method except that the micro-invasive plasma generator including only the cooling channel portion was not used and the saline solution was not injected. Experimental Example 1 corresponds to the configuration shown in Figs. 9A and 9B. 9B is a cross-sectional view taken along line AA 'in FIG. 9A.

9A and 9B, the micro-invasive plasma generating apparatus not including the induction channel portion and the cooling medium recovery portion includes an induction pipe 110, a plasma electrode 120, a plasma generating portion 122, a coupling portion 124 and a cooling passage portion 130. [ The plurality of coupling parts 124 in the plasma electrode 120 may be formed of the dielectric 126. For example, it can be formed of alumina having strong heat resistance. A coupling part 124 to which the plasma generating part 122 can be coupled may be formed in the plasma electrode 120.

9B is formed to penetrate through the dielectric 126 and has a diameter similar to the diameter of the plasma generating portion 122 so that the cell tissue is formed into a micro-invasive plasma It is possible to prevent penetration into the treatment device 200.

Experimental Example 2)

The experiment was carried out in the same manner as the above-mentioned experimental method by using a micro-invasive plasma generating apparatus not including the induction flow path portion and the cooling medium returning portion but including only the cooling flow path portion. Experiment 2 corresponds to the configuration shown in Figs. 9A and 9B.

In Experimental Example 2, the cooling medium can flow through the cooling channel portion 130 formed on the outer peripheral surface of the plasma electrode 120, and can contact the surface of the plasma electrode. The cooling medium provided through the cooling medium inlet (refer to 140 in FIG. 1) installed at one side of the induction pipe 110 can be continuously supplied, and the provided cooling medium can continue to flow on the outer circumferential surface which is the surface portion of the electrode .

Experimental Example 3)

The experiment was conducted in the same manner as the above-mentioned experimental method using a micro-invasive plasma generating apparatus that does not include a cooling medium recovery unit but only a cooling channel unit and an induction channel unit. Experimental Example 3 corresponds to the configuration shown in Figs. 10A to 10C. 10B is a sectional view taken along line BB 'in FIG. 10A, and FIG. 10C is a sectional view taken along line CC' in FIG. 10A.

10A to 10C, the micro-invasive plasma generator including only the cooling passage portion and the induction passage portion without the cooling medium recovery portion includes a guide passage portion 180 for guiding the cooling medium to one surface of the opening May be formed. The plasma display apparatus may further include an induction pipe 110, a plasma electrode 120, a plasma generating unit 122, a coupling unit 124, and a cooling channel unit 130.

The plurality of coupling parts 124 in the plasma electrode 120 may be formed of the dielectric 126. For example, it can be formed of alumina having strong heat resistance. A coupling part 124 to which the plasma generating part 122 can be coupled may be formed in the plasma electrode 120. 9B is formed to penetrate through the dielectric 126 and has a diameter similar to the diameter of the plasma generating portion 122 so that the cell tissue is formed into a micro-invasive plasma It is possible to prevent penetration into the treatment device 200.

In addition, the cooling medium can flow through the cooling passage portion 130 and the guide passage portion 180 formed on the outer circumferential surface of the plasma electrode 120, and can contact the surface of the plasma electrode. The cooling medium provided through the cooling medium inlet (refer to 140 in FIG. 1) installed at one side of the induction pipe 110 can be continuously supplied, and the provided cooling medium can continue to flow on the outer circumferential surface which is the surface portion of the electrode .

Experimental Example 4)

The experiment was carried out in the same manner as the above-described experimental method using a micro-invasive plasma generating apparatus not including the induction flow path portion but including only the cooling passage portion and the cooling medium recovery portion. Experimental Example 4 corresponds to the configuration shown in Figs. 2 and 4 as one embodiment of the present invention.

Experimental Example 5)

The experiment was conducted in the same manner as the above-described experimental method using a micro-invasive plasma generator including a cooling channel portion, a cooling medium recovery portion, and an induction channel portion. Experimental Example 5 corresponds to the configuration shown in Figs. 3 and 8 as another embodiment of the present invention.

FIG. 6 is a graph showing the sustainable time of the microinvasive plasma generating apparatuses according to the experimental examples of the present invention. FIG. 7 is a graph showing the duration of the microinvasive plasma generating apparatuses according to the present invention. And the maximum temperature of the pig's pit. On the graph, Experimental Example 1 is shown as A1, Experimental Example 2 as A2, Experimental Example 3 as B, Experimental Example 4 as C, Experimental Example 5 as D.

Referring to FIGS. 6 and 7, the duration of the procedure was the longest in D (Experiment 5), followed by B (Experimental Example 3), C (Experimental Example 4), A2 Example 2), and A1 (Experimental Example 1). In the case of D (Experimental Example 5) in which the operation sustainability time is the longest, and A1 (Experimental Example 1) in which the operation duration is the shortest, (Experimental Example 1) was about 400% higher than that of Experimental Example 1.

The maximum temperature of the porcine nucleus at the time of the procedure was highest in A1 (Experimental Example 1), followed by A2 (Experimental Example 2), C (Experimental Example 4), B (Experimental Example 3) D (Experimental Example 5). When comparing the case of D (Experiment 5) in which the maximum temperature of the pig's nucleus was lowest during the procedure and the case of A1 (Experiment 1) in which the maximum temperature of the pig's nucleus was highest during the procedure, 5) showed about 25% higher temperature control ability than that of A1 (Experimental Example 1).

As a result, the microinvasive plasma generator including all of the cooling channel portion, the guide channel portion 180, and the cooling medium recovery portion according to the embodiment of the present invention is superior to other devices Could know.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

110: induction tube
120: Plasma electrode
122: Plasma generator
124:
126: Dielectric
130: cooling channel part
140: Cooling medium inlet
150:
160: Support
200: Micro-invasive plasma generator
170: Cooling medium recovery unit
180:

Claims (9)

Induction tube;
A plasma electrode inserted in the induction tube;
A cooling medium inlet provided at one side of the induction tube and capable of injecting a cooling medium into the induction tube;
A cooling passage portion provided in the induction pipe and through which the cooling medium flows; And
A cooling medium recovery unit which recovers the cooling medium discharged to the outside of the induction pipe through the cooling passage unit into the induction pipe;
Wherein the micro-invasive plasma generating device comprises: The method according to claim 1,
Wherein the plasma electrode comprises:
dielectric;
A plasma generator inserted into the body; And
A coupling unit positioned between the dielectric and the plasma generating unit;
Wherein the micro-invasive plasma generating device comprises: The method according to claim 1,
And an opening through which the cooling medium injected from the one side is discharged is formed on the other side opposite to the one side of the induction pipe. The method of claim 3,
And a guide passage part for guiding the cooling medium to the cooling medium recovery part is formed on one side of the opening. The method according to claim 1,
And a cooling medium processing unit installed at one side of the induction pipe and capable of discharging the cooling medium recovered from the cooling medium recovery unit to the outside of the induction pipe. The method according to claim 1,
Wherein the cooling medium comprises saline. The method according to claim 6,
Wherein the cooling medium moves through the cooling channel portion and is discharged to the other opening, thereby cooling the plasma electrode or the human body tissue. The method according to claim 1,
And a fixing unit for fixing the plasma electrode in the induction tube while closing a space between the plasma electrode and the induction tube at one side of the induction tube. The method according to claim 1,
Further comprising a support constructed of a structure that can be positioned on an outer circumferential surface of the induction tube.

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