Electrode device for blocking or adjusting nerves in vivo

Abstract

An electrode device for blocking or adjusting a nerve in a body comprises: a main body having a shaft; an electrode unit which is formed by being pulled out from one end of the shaft, and which blocks or adjusts at least a part of the nerves of the tube in the body; an electrode guide that is provided with a plurality of joint parts and a lead wire that connects the plurality of joint parts to each other, and that guides the electrode unit; a sensor unit which is formed in a predetermined partial region of the electrode unit and measures the temperature of the tube in the body; and a signal processing unit that converts the analog signal value measured by the sensor unit into a digital signal value and transmits the converted digital signal value to an RF energy generator.

Description

TECHNICAL FIELD

[0001] The present application relates to an electrode device for blocking or adjusting a nerve in a body. BACKGROUND

[0002] Nerve blocking refers to a surgery for controlling an abnormally overactive autonomic nervous system by damaging a specific nerve. For example, renal nerve blocking can treat hypertension and heart disease by damaging a renal sympathetic nerve heading toward a kidney, and pulmonary nerve blocking can treat a lung disease by damaging a parasympathetic nerve heading toward a lung.

[0003] When performing such a surgery, it is essential to accurately deliver a surgery-required electric stimulus to a nerve as a surgery target. Specifically, in order to effectively block or adjust a nerve in a tube in a body as a surgery target, it is essential to accurately deliver a surgery-required RF energy according to a state of a tube in which a nerve is distributed (e.g., a temperature of the tube, etc.).

[0004] Figure 1 FIG. 1 is a diagram illustrating a process of processing a signal regarding a temperature value of a tube in a body detected by an electrode device according to the prior art.

[0005] REFERENCE Figure 1 In the electrode device 10, temperature data of a tube in a body measured by a thermocouple 11 is transmitted to an RF energy generator 20 through a cable 30 to be processed.

[0006] For example, an analog signal detected in the electrode device 10 is transmitted to the RF energy generator 20 through the cable 30, and the RF energy generator 20 converts the received analog signal into a digital signal. Then, the RF energy generator 20 outputs an RF energy to the electrode device 10 according to the converted digital signal.

[0007] At this time, the analog signal detected by the electrode device 10 is exposed to noise 40 generated by the cable 30 in the process of being transmitted to the RF energy generator 20 through the cable 30, and can cause a decrease in accuracy of the detected analog signal, i.e., a measured temperature. In particular, the electrode device 10 measures a temperature of a tube in a body as a surgery target by a thermocouple, however a voltage difference generated by the thermocouple is very small, only several microvolts (μV) per degree Celsius, and thus even a small noise 40 is greatly affected. SUMMARY

[0008] TECHNICAL PROBLEM

[0009] An object of the present application is to accurately transmit a temperature of a surgery target measured by an electrode device to an RF energy generator, and the RF energy generator to accurately output an RF energy required for blocking a nerve.

[0010] Further, the present application provides an electrode device capable of accurately transmitting information about a temperature of a surgical subject detected by a thermocouple to an RF energy generator.

[0011] Further, the present application provides an electrode device capable of reducing an error of a detection signal between an electrode device connected by a cable and an RF energy generator.

[0012] However, the technical problems to be solved by the present embodiment are not limited to the above-described technical problems, and other technical problems can exist.

[0013] Technical Solution

[0014] To achieve an object of the present application, an electrode device for blocking or adjusting a nerve in a body according to the present application can include a main body having a shaft, an electrode unit formed to be pulled out from one end of the shaft and blocking or adjusting a nerve of at least a portion of a tube in the body, an electrode guide having a plurality of joint portions and a wire connecting the plurality of joint portions to each other and guiding the electrode unit, a sensor portion formed in a predetermined portion of the electrode unit and measuring a temperature of the tube in the body, and a signal processing portion converting an analog signal value measured by the sensor portion into a digital signal value and transmitting the converted digital signal value to an RF energy generator.

[0015] The electrode unit can include a base layer, a plurality of electrode layers disposed on the base layer, and a top layer interposed between the plurality of electrode layers and disposed to overlap a portion of the electrode layers.

[0016] The sensor portion is a thermocouple composed of a first metal and a second metal, and the thermocouple can include a cold junction disposed on the base layer.

[0017] The above-described solution for solving the problem is only exemplary and should not be construed as limiting the present application. In addition to the above-described exemplary embodiments, there can be additional embodiments described in the drawings and detailed description.

[0018] Effects of the Invention

[0019] According to the electrode device of the present application, information about a temperature of a surgical subject detected by a thermocouple in an electrode device can be accurately transmitted to an RF energy generator. Thus, an error of a detection signal between an electrode device connected by a cable and an RF energy generator can be reduced, and a surgery can be precisely performed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a diagram showing a process of processing a signal about a temperature value of a tube in a body detected by an electrode device according to the related art.

[0021] Figure 2 is a side view showing an electrode device according to an embodiment of the present application.

[0022] Figure 3 is a side view showing an electrode device according to an embodiment of the present application. Figure 2 is a view showing the electrode guide shown in

[0023] Figure 4 is a view showing the electrode guide shown in Figure 2

[0024] Figure 5 is a view showing the internal configuration of the signal processing section of the main body shown in Figure 2

[0025] Figure 6 is a view showing the sensor section of the electrode unit of the region A shown in Figure 5

[0026] Figure 7 is a view showing the components inside the shaft of the region A shown in Figure 3

[0027] Figure 8 is an exploded perspective view showing a part of the joint portion shown in Figure 3

[0028] Figure 9 is a sectional view showing the drive unit of the main body shown in Figure 2

[0029] Figure 10 is a view showing the operation process of the electrode guide according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the embodiments of the present application. The present application may, however, be implemented in various different forms and is not limited to the embodiments described herein. Also, for the sake of clarity, portions that are not related to the description have been omitted from the drawings, and like reference numerals are used throughout the specification for like parts.

[0031] ​​​​​​Throughout the specification, when it is mentioned that one part is "connected" to another part, it includes not only the case of "direct connection" but also the case of "electric connection" of both through other elements. Also, when it is mentioned that one part "includes" a certain part, it refers to that other parts can be further included unless otherwise stated, not excluding other parts. It should be understood that the additional possibility of one or more other features or quantities, steps, actions, components, parts, or combinations thereof is not excluded. Also, throughout the specification, when one part is "on" another part, it includes not only the case that one part is tangent to another part but also the case that there is another part between the two parts.

[0032] Figure 2 is a side view showing an electrode device 100 according to an embodiment of the present application, Figure 3 is a side view showing Figure 2 is a view showing the electrode guide 130 shown in Figure 4 is a view showing Figure 2 is a plan view showing a part of the electrode unit shown in Figure 5 is a view showing the internal configuration of the signal processing section of the main body shown in Figure 2

[0033] Referring to Figure 2 , the electrode device 100 according to an embodiment of the present application includes a main body 110, an electrode unit 120, and an electrode guide 130. The main body 110 can include a shaft 111 extending in one direction, a grip 112 formed to be connected to the shaft 111 to be held by a surgeon, a guide operation section 113 formed in the grip 112 to operate the movement of the electrode guide 130, and an electrode operation section 114 formed in the grip 112 to operate the energy transmission to the electrode unit 120. The inside of the main body 110 can be configured with various components to drive and control the electrode unit 120 and the electrode guide 130.

[0034] The electrode unit 120 is formed to be pulled out from one end of the shaft 111 and is configured to block or adjust at least a part of the nerves distributed in the tissue of the tube in the body according to the operation of the surgeon or the like. The electrode unit 120 is accommodated in the inside of the shaft 111 and can be pulled out to the outside by the electrode guide 130 to be described later when the electrode device 100 of the present application operates.

[0035] Referring to Figure 3 , the electrode guide 130 performs a function of bringing the electrode unit 120 into contact with the tube in the body. The electrode guide 130 supports the electrode unit 120 and guides the electrode unit 120 to come into contact with the tube in the body.

[0036] ​The electrode guide 130 according to the present application has a plurality of joint portions 131. The plurality of joint portions 131 can form a curved winding path in a manner of surrounding the outer circumference of the tube V in the body with the electrode unit 120 interposed therebetween. Figure 3 and Figure 10 The state shown in (c) of

[0037] Referring to Figure 3 and Figure 4 , the electrode unit 120 can include a base layer 121, an electrode layer 122, and a top layer 124. The electrode device 100 according to the present application can surround the outer surface of the tube or the tubular tissue V in the body with the electrode and deliver energy through the electrode, and for this purpose, the base layer 121 can be a flexible printed circuit board (Flexible PCB) that is flexible.

[0038] The electrode layer 122 can be formed on the base layer 121, Figure 3 In an embodiment of the present application, the electrode layer 122 can be composed of two electrodes extending in parallel to each other on the base layer 121. In this embodiment, the base layer 121 and the electrode layer 122 can be configured to extend in the circumferential direction to surround the tube or the like in the body.

[0039] The electrode layer 122 can be made of a material that is harmless to the human body and can conduct electricity, such as stainless steel or gold, etc., to block or denervate or control or modulate the nerve. In addition, the electrode layer 122 can deliver various types of energy from an energy source generator. For example, radio-frequency (RF) energy, electrical energy, laser energy, ultrasonic energy, high-intensity focused ultrasound energy, cryogenic energy, and other thermal energy can be used.

[0040] In addition, the electrode layer 122 can be formed as a flexible circuit board (Flexible PCB) that delivers high-frequency energy, a transducer that delivers ultrasonic energy, a metal electrode that delivers high-voltage energy, etc., to deliver energy for damaging the nerve.

[0041] In addition, the electrode unit 120 can include the base layer 121, the electrode layer 122 disposed on the base layer 121, and the top layer 124 interposed between the electrode layer 122 and disposed in a manner of overlapping a portion of the electrode layer 122. Also, the top layer 124 can be provided with a through-hole 120a.

[0042] In addition, the electrode unit 120 can include a sensor part 123. The sensor part 123 can be formed in a predetermined portion of the electrode unit 120 to measure the temperature of a tube in the body. When a nerve ablation surgery is performed by the electrode device 100 of the present application, the sensor part 123 can monitor the temperature of a surgery site.

[0043] The sensor part 123 can be a thermocouple that measures the temperature in contact with a tube or the like in the body. For example, the sensor part 123 can include a first metal 123a and a second metal 123b as a thermocouple formed on the base layer 121. As an example, the first metal 123a can be copper, and the second metal 123b can be constantan.

[0044] Referring to Figure 5 , the sensor part 123 can include a cold junction (CJ) 125 and a hot junction (HJ) 127 as a thermocouple composed of the first metal 123a and the second metal 123b. In general, a thermocouple generates an electromotive force, i.e., a thermoelectric electromotive force, by contacting two metals 123a, 123b having different junction temperatures and causing a current to flow.

[0045] At this time, the thermocouple includes a junction that is transitionally connected from the first metal 123a to the second metal 123b, and the junction is referred to as a cold junction 125 and a hot junction 127. According to an embodiment of the present application, Figure 5 The sensor part 123, i.e., the thermocouple according to an embodiment of the present application can be disposed on the base layer 121 to constitute a cold junction.

[0046] Figure 6 is a diagram illustrating a sensor part of an electrode unit of the region A illustrated in Figure 5 Referring to (a) of Figure 6 , the signal processing part 150 can insert a temperature sensor 126 at the cold junction 125. That is, referring to (b) of Figure 6 , the signal processing part 150 configures the temperature sensor 126 in a portion where the first metal 123a starts and the second metal 123b ends, thereby being able to improve an error when measuring the temperature by the thermocouple.

[0047] Also, when the electrode unit is configured with the sensor part, the accuracy of temperature measurement of the cold junction can be improved, and further, the accuracy of the measured temperature of the thermocouple can be improved.

[0048] On the other hand, referring again to Figure 5According to the present invention, the electrode device 100 can directly process the signal related to the temperature of the tubes inside the body detected by the sensor unit 123 inside the main body 110. The electrode device 100 includes a signal processing unit 150 inside the main body 110, which is capable of directly processing the detected information related to the temperature of the tubes inside the body.

[0049] In the prior art, the signal related to the temperature of the tube detected by the electrode device 100 is converted into temperature data in the RF energy generator 200 via the cable 300. However, this method may reduce the accuracy of the information about the tube's temperature. For example, the analog signal detected by the sensor section 123 of the electrode device 100 may be exposed to noise 400 generated by the cable 300 during transmission to the RF energy generator 200 via the cable 300, which may lead to a decrease in the accuracy of the measured temperature value, i.e., the temperature value of the tube inside the body.

[0050] However, according to the present invention, the electrode device 100 has a signal processing unit 150 inside the main body 110. The signal related to the temperature of the tube detected by the sensor unit 123 is directly processed in the signal processing unit 150 and then transmitted to the RF energy generator 200, thereby eliminating the noise 400 generated by the cable 300 and improving the accuracy during surgery.

[0051] exist Figure 5 In some embodiments, the electrode device 100 may include a signal processing unit 150 inside the main body 110. For example, the electrode device 100 may have a signal processing unit 150 inside the handle portion that the surgeon can hold, i.e., inside the main body 110, to directly convert the analog signal detected by the sensor portion 123 of the electrode unit 120 into temperature data.

[0052] The signal processing unit 150 can convert the analog signal value detected by the sensor unit 123 into a digital signal value. The signal processing unit 150 can then send the converted digital signal value to the RF energy generator 200. As described above, the electrode device 100 according to the present invention sends the digital signal value directly converted by the signal processing unit 150 to the RF energy generator 200, thus preventing signal distortion or loss.

[0053] Figure 7 It is shown Figure 3 The diagram shows the components inside the axis of region A. Figure 8 It is shown Figure 3 An exploded perspective view of a portion of the joint shown in the image. Figure 9 It is shown in Figure 2 The cross-sectional view of the drive unit internally configured in the main body is shown in the figure. Figure 10 This is a diagram illustrating the operation process of an electrode conductor according to an embodiment of the present invention.

[0054] Referring to Figure 7 and 8 , the lead wire 133 can be formed to pass through the plurality of joint portions 131 in order. The lead wire hole 131c can be formed in the joint portion 131 along the longitudinal direction to pass the lead wire 133 therethrough. The end portions of the lead wire 133 passing through the lead wire holes 131c in order can be combined and fixed to the tip joint 132, and the lead wire 133 can slide in the lead wire hole 131c with respect to each joint portion 131 along the longitudinal direction. Thus, the lead wire 133 can guide the plurality of joint portions 131 and the tip joint 132 to be disposed on the winding path, and provide a force to pull the plurality of joint portions 131 and the tip joint 132 in a direction surrounding the tube V.

[0055] The lead wire 133 can perform an action of protruding from one end portion of the shaft 111 together with the plurality of joint portions 131. At this time, it can be designed that the amount of protrusion of the lead wire 133 is less than that of the joint portion 131, and thus the lead wire 133 can provide a force to pull the plurality of joint portions 131 to have the winding path.

[0056] Referring to Figure 8 , the joint portion 131 can have a hinge portion 131a and a winding support portion 131b. The hinge portion 131a is a structure for rotatably connecting with an adjacent joint, and can be formed on one side or both sides in the longitudinal direction in which the joint portions 131 are connected side by side. As illustrated, the hinge portion 131a can form a rotation axis in a direction crossing the longitudinal direction and connect with the hinge portion 131a of the adjacent joint portion 131. In each hinge portion 131a, a hinge pin (not shown) can be inserted and fastened in a direction in which the rotation axis is formed.

[0057] The winding support portion 131b is a structure for supporting the plurality of joint portions 131 on the winding path, and can be formed on one side or both sides in the longitudinal direction to support each other with the adjacent joint portion 131. As illustrated, the winding support portion 131b can be formed at a position adjacent to the hinge portion 131a in a direction in which the electrode guide 130 is wound (in which the joint portion 131 is wound). The winding support portion 131b can be formed, for example, as a surface having a predetermined angle and area, and supported in a surface contact manner with the adjacent winding support portion 131b, so that the winding form of the electrode guide 130 can be fixed. The winding support portion 131b and the lead wire hole 131c can be formed at a position spaced apart from the rotation center of the hinge portion 131a toward the inner side of the tube V in the body.

[0058] When the lead wire 133 is pulled more rearward than the electrode guide 130 (the length of the lead wire 133 pulled out from the shaft 111 is shorter than the length of the joint portion 131), tension can be applied to the lead wire 133 in the direction in which the electrode guide 130 is wound. Conversely, the winding support portion 131b can provide a force that supports the joint portions 131 from each other in the direction in which the electrode guide 130 is inhibited from being wound. The lead wire 133 and the winding support portion 131b can form a balance of forces in opposite directions to each other, and thus the electrode guide 130 can be fixed to the winding path.

[0059] On the other hand, as Figure 8 indicated, the electrode guide 130 can include a first joint group 131x and a second joint group 131y. That is, the plurality of joint portions 131 can be divided into the first joint group 131x and the second joint group 131y having different lengths from each other.

[0060] According to the difference in length, the first joint group 131x can form a first radius of curvature, and the second joint group 131y can form a second radius of curvature greater than the first radius of curvature. It can be confirmed from Figure 10 (c) that the joint portion having a relatively short length (the first joint group 131x) can form a small radius of curvature, and the joint portion having a long length (the second joint group 131y) can form a large radius of curvature.

[0061] When a path having a smaller radius of curvature is formed by the joint portions 131 located on the side close to the tip joint 132, as Figure 10 indicated in (c) of FIG. 1, a path in which the tip joint 132 enters the space between the tube and the shaft 111 in the body can be formed. Also, the electrode guide 130 including the joint portions 131 can have a spiral shape as a whole.

[0062] Referring to Figure 9 , the driving unit 140 can include a frame 141, a motor portion 142, a rod block 143, a lead wire block 144, and a variable connection portion 145. The driving unit 140 drives the joint portions 131 of the electrode guide 130 and the lead wire 133 to protrude from one end portion of the shaft, and links the joint portions 131 and the lead wire 133 in such a manner that the joint portions 131 and the lead wire 133 have different displacements.

[0063] That is, the driving unit 140 controls such that the electrode guide 130 assumes a wound state surrounding the outer periphery of the tube V in the body in such a manner that the displacement difference of the joint portions 131 and the lead wire 133 increases. Also, the driving unit 140 controls such that the electrode guide 130 assumes a straight line state in such a manner that the displacement difference of the joint portions 131 and the lead wire 133 decreases.

[0064] For example, via the drive unit 140, the wire 133 can protrude from one end of the shaft 111 by a smaller amount (length) than the joint portion 131. Corresponding to this difference in the amount of protrusion, the joint portion 131 can be pulled by the wire 133 in one direction (the direction of the tube surrounding the body), thereby protruding in a manner that forms a curved winding path. More specifically, the wire 133 can protrude by a relatively smaller amount whenever the joint portion 131 rotates at a winding angle (e.g., 30 degrees) formed by the winding support portion 131b while protruding.

[0065] like Figure 9 As shown, the frame 141 can be fixed inside the main body and may have guide grooves or guide shafts extending in the front-rear direction. The motor unit 142 can be connected to the frame 141 and may have a rotating shaft 142a rotatably supported on the frame 141. The motor unit 142 may, for example, receive electrical energy to rotate the rotating shaft 142a.

[0066] One end of the lever block 143 can be connected to the joint portion 131. The lever block 143 can move forward and backward via the motor portion 142. Specifically, the lever block 143 can move forward and backward by engaging with the rotating shaft 142a, wherein the rotating shaft 142a extends in the front-rear direction and is threaded. The lever block 143 can be configured to have a lever 143a disposed inside the shaft 111 and formed to extend in one direction (front-rear direction) to support the joint portion 131, and a concave-convex structure that slidably engages with the guide groove or guide shaft of the frame 141.

[0067] In addition to the aforementioned rotating shaft 142a and motor unit 142 structures, the drive unit 140 according to the present invention can also be configured to move the lever block 143 in the forward and backward direction by various linear actuation methods. For example, the drive unit 140 may include: a cylinder-type linear actuator including pneumatic, hydraulic or electric methods, or a piezoelectric / ultrasonic linear actuator, etc.

[0068] The wire block 144 is formed to support the wire 133 and can move forward and backward in conjunction with the rod block 143. The wire block 144 has a concave-convex structure that can be slidably inserted into a guide groove or guide shaft, and a sliding hole 144a that slidably accommodates the rotating shaft 142a. The wire block 144 can move forward and backward side by side with the rod block 143.

[0069] The variable connection 145 allows the rod block 143 and the wire block 144 to be connected to each other, and can change the distance between the rod block 143 and the wire block 144. For this purpose, the variable connection 145 may include a rod connecting rod 145a, a wire connecting rod 145b, a hinge pin 145c, and a pin groove 145d.

[0070] Further, the rod link 145a and the wire link 145b are connected to the rod block 143 and the wire block 144, respectively, in a rotatable manner. Further, the rod link 145a and the wire link 145b can be connected to each other in a rotatable manner by a hinge pin 145c.

[0071] The pin groove 145d is formed to slidably accommodate the hinge pin 145c. Specifically, the pin groove 145d is formed to extend at a preset inclined angle with respect to the front-rear direction. The pin groove 145d can be formed in the frame 141.

[0072] According to the present application, by the driving unit 140, the plurality of joint portions 131 can be pulled out from the shaft 111 and wound in a direction surrounding the tube V. Also, the space in which the electrode guide 130 can be operated can be minimized, and the operation of blocking or adjusting the nerve can be safely and accurately performed even in a narrow space.

[0073] Further, the driving unit 140 makes the displacement of the joint portion 131 and the wire 133 different, and thus the electrode guide 130 of the electrode device 100 according to the present application can secure the precision and the reproducibility of the operation path.

[0074] Referring to Figure 10 (a) to (c) of the accompanying drawings, the electrode guide 130 can further include a tip joint 132 and a wire 133. The tip joint 132 supports the electrode unit 120, and can be coupled to the distal end of the plurality of joint portions 131 connected in series. The tip joint 132 can be pulled out from the one end portion of the shaft 111 earlier than the plurality of joint portions 131.

[0075] As shown in Figure 10 (c) of the accompanying drawings, the tip joint 132 can be located close to the tube V in the body, and the tip joint 132 can have a tapered shape in which the width or thickness thereof is thinned toward the distal end, to prevent interference with the electrode unit 120 or to maximize the surface surrounding the tube in the body. The end portion of the electrode unit 120 can be fastened and fixed to the tip joint 132.

[0076] Figure 10 As shown in (a) to (c) of the accompanying drawings, the plurality of joint portions 131 are sequentially pulled out and moved toward one side, and can become a wound state in which the entire electrode guide 130 surrounds the tube V. However, in the wound state, the electrode guide 130 is disposed to be spaced apart from the outer circumferential surface of the tube V, and the electrode unit 120 disposed inside the wound electrode guide 130 can be in close contact with the outer circumferential surface of the tube V.

[0077] Referring to Figure 10 (a) and (b) of the accompanying drawings, the electrode guide 130 is accommodated in the inside of the shaft 111 together with the electrode unit 120, and can protrude from the one end portion toward the front F in a curved wound path to perform a surgery.

[0078] Referring to Figure 10 (c), the electrode guide 130 can be deformed into a coiled state surrounding the outer circumference of the tube V in the body by the enlarged displacement difference between the joint portions 131 and the wire 133. Specifically, the plurality of joint portions 131 can be sequentially pulled out from the shaft 111, and according to the displacement difference with the wire 133, move along a coiled path of a curve to be formed in a state of entirely surrounding the tube V. Also, the electrode guide 130 is disposed apart from the outer circumferential surface of the tube V, and the electrode unit 120 disposed inside the coiled electrode guide 130 can be in close contact with the outer circumferential surface of the tube V.

[0079] Accordingly, it is possible to minimize the space in which the electrode guide 130 operates, and to safely and accurately perform the operation of blocking or adjusting the nerve even in a narrow space.

[0080] The above description of the present application is for example, and it will be understood by those skilled in the art to which the present application pertains that it can be easily modified into other specific embodiments without changing the technical idea or essential characteristics of the present application. Therefore, it should be understood that the above-described embodiments are merely exemplary and not limiting in all aspects.

[0081] Further, the scope of the present application will be represented by the claims to be described later, not the above detailed description, and all modified or changed embodiments derived from the meaning and scope of the claims and equivalent concepts thereof should be understood to be included in the scope of the present application.

Claims

1. An electrode device for blocking or modulating a nerve in a body, wherein, Comprising: a main body having a shaft; an electrode unit formed to protrude from one end of the shaft and blocking or adjusting a nerve of at least a portion of a tube in a body; an electrode guide having a plurality of joint portions and a wire connecting the plurality of joint portions to each other and guiding the electrode unit; a sensor portion formed in a predetermined portion of the electrode unit and measuring a temperature of the tube in the body; and a signal processing portion converting an analog signal value measured by the sensor portion into a digital signal value and transmitting the converted digital signal value to an RF energy generator.

2. The electrode device according to claim 1, wherein the electrode unit includes: a base layer; a plurality of electrode layers disposed on the base layer; and a top layer interposed between the plurality of electrode layers and disposed in a manner of overlapping a portion of the electrode layers.

3. The electrode device according to claim 2, wherein the sensor portion is a thermocouple composed of a first metal and a second metal, the thermocouple includes a cold junction disposed on the base layer.

4. The electrode device according to claim 1, further comprising a driving unit inside the main body, the driving unit being configured to control the electrode guide to assume a coiled state in which the electrode guide surrounds an outer circumference of the tube in the body by increasing a displacement difference between the joint portions and the wire, and to control the electrode guide to assume a straight state by decreasing the displacement difference between the joint portions and the wire.

5. The electrode device according to claim 4, wherein the driving unit includes: a rod block having one end connected to the joint portions and being configured to advance and retreat; a wire block supporting the wire and being configured to advance and retreat; and a variable connection portion connecting the rod block and the wire block to each other and being configured to change a distance between the rod block and the wire block.

6. The electrode device according to claim 4, wherein the driving unit further includes: a motor portion; a rod block being configured to advance and retreat by the motor portion and having a rod having one end connected to the joint portions; and a wire block supporting the wire and being configured to advance and retreat side by side with the rod block, a distance between the wire block and the rod block becomes longer when the rod block advances, and the distance between the wire block and the rod block becomes shorter when the rod block retreats.

7. The electrode device according to claim 1, wherein the wire is formed to protrude from one end of the shaft by a displacement smaller than a displacement by which the joint portions protrude from one end of the shaft, thereby providing a force to pull the joint portions in a direction surrounding the tube.

8. The electrode device according to claim 1, wherein the joint portion includes: a hinge portion formed on one side or both sides of the joint portion in a longitudinal direction of the joint portion connected to an adjacent joint portion; and a wire hole formed at a position spaced apart from a rotation center of the hinge portion to allow the wire to be inserted.

9. The electrode device according to claim 1, wherein the plurality of joint portions are made of an elastically deformable material and formed in one body, ​ ​ A winding support groove is formed between the joint sections of the electrode guide that are adjacent to each other, and the winding support groove is deformed in a manner that at least a part thereof is closed by the force of the lead wire.

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