Electrode unit and electrode device including same

Abstract

The electrode unit is provided in an electrode device for blocking or regulating nerves in the body, and is configured to be wrapped around tubular tissue in the body, the electrode unit including an electrode layer having a fastening portion, an extension portion and an electrode portion extending in sequence, the electrode portion having an electrode formed on one side thereof being configured to be wrapped around the tubular tissue, and a fixing layer laminated on the electrode layer with respect to the fastening portion, the extension portion and a portion of the electrode portion.

Description

[Technical field]

[0001] The present invention relates to an electrode unit for blocking or modulating nerves in the body and an electrode device including the same. [Background technology]

[0002] Neuropathy is a procedure that damages certain nerves to control abnormally overactive autonomic nervous system. For example, renal neuropathy can treat high blood pressure and heart disease by damaging the renal sympathetic nerves that go to the kidneys, and pulmonary neuropathy can treat lung disease by damaging the parasympathetic nerves that go to the lungs.

[0003] Nerves are typically wrapped around the exterior walls of tubes such as blood vessels, bronchi, etc., and may need to be wrapped around the exterior walls of such tubes to measure nerve signals, deliver electrical impulses to the nerve, or deliver various energies to damage or destroy the nerve.

[0004] For example, when performing surgery on the renal artery, the diameter of the main renal artery to be treated is 5 to 7 mm, and the accessory renal artery, which has a diameter of 1 to 2 mm, may also be targeted. In addition, the size of the vessels that contain nerves varies from person to person, and the size changes depending on the location.

[0005] In carrying out such treatment, it is important to precisely position the components including the electrodes formed at the distal end of the catheter so that they can be wrapped around the outer wall of the vessel. Specifically, in order to effectively block or regulate nerves, the outer wall of the vessel in which the nerves are distributed must be wrapped in a circumferential direction, and the operation of placing the components with electrodes formed in the middle of the vessel in a wrapped state must be performed reliably and quickly. At the same time, it must be performed while suppressing or minimizing the transmission and contact of unnecessary energy into the body. Prior art documents include Korean Patent Application Publication No. 2013-0108401 (published on October 2, 2013). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent Application Publication No. 2013-0108401 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention provides an electrode device including an electrode unit that is in contact with a human body, and an electrode guide that operates the electrode unit by forming a connection with the electrode unit with minimal contact.

[0008] However, the technical problems to be solved by this embodiment are not limited to those described above, and other technical problems may exist. [Means for solving the problem]

[0009] As a means for achieving the above-mentioned technical objectives, one embodiment of the present invention is an electrode unit provided in an electrode device for blocking or regulating nerves in the body, and configured to be wrapped around tubular tissue in the body, the electrode unit being formed by sequentially extending a fastening portion, an extension portion and an electrode portion, the electrode portion having an electrode formed on one side thereof being configured to be wrapped around the tubular tissue; and a fixing layer laminated on the electrode layer with respect to the fastening portion, the extension portion and a portion of the electrode portion.

[0010] In one embodiment of the present invention, the fixing layer includes a first fastening portion formed at one end to correspond to the fastening portion, a second fastening portion formed at the other end, and a connecting portion connecting the first and second fastening portions, and the boundary between the connecting portion and the second fastening portion is configured to be bendable.

[0011] In one embodiment of the present invention, the anchoring layer is attached to the electrode layer, but at least a part of an electrode portion of the electrode layer is not attached to the anchoring layer.

[0012] In one embodiment of the present invention, a first fastening portion of the fixing layer is attached corresponding to a fastening portion of the electrode layer, and the entire connecting portion of the fixing layer is attached over the extension portion of the electrode layer and a portion of the electrode portion of the electrode layer.

[0013] In one embodiment of the present invention, a first fastening portion of the fixing layer is attached corresponding to a fastening portion of the electrode layer, a portion of the connecting portion of the fixing layer is attached to the entire extension portion of the electrode layer, and a remaining portion of the connecting portion of the fixing layer is not attached to the electrode portion of the electrode layer.

[0014] In one embodiment of the present invention, a first fastening portion of the fixing layer is attached corresponding to a fastening portion of the electrode layer, a portion of the connecting portion of the fixing layer is attached across the extension portion of the electrode layer and a portion of the electrode portion of the electrode layer, and a remaining portion of the connecting portion of the fixing layer is not attached to the electrode portion of the electrode layer.

[0015] An embodiment of the present invention further includes a sensor portion disposed on the electrode portion of the electrode layer and configured to sense temperature.

[0016] Another embodiment of the present invention is an electrode device for blocking or regulating nerves in the body, comprising: an electrode unit according to the embodiment of the present invention; and an electrode guide that is deformed into a wound state to bring the electrode unit into contact with the tubular tissue, the electrode guide comprising a body portion that is formed to be wound around the tubular tissue and spaced apart from the electrode unit in the wound state; and a coupling portion that is connected to an end portion of the body portion and is formed to fix a fastening portion of the electrode unit.

[0017] In another embodiment of the present invention, the coupling portion includes a first clamp piece configured to be fixed to the body portion, and a second clamp piece coupled to the first clamp piece across the fastening portion of the electrode unit.

[0018] In another embodiment of the present invention, one of the first clamp piece and the second clamp piece has a protrusion formed to protrude in one direction, the other of the first clamp piece and the second clamp piece has a fastening groove recessed to correspond to the protrusion, and a through hole is formed in the fastening portion of the electrode unit through which the protrusion passes.

[0019] Another embodiment of the invention is configured such that the fastening portion of the electrode unit is interposed between the first clamp piece and the second clamp piece.

[0020] In another embodiment of the present invention, the electrode guide further includes a joint wire that passes through the body portion and is coupled to the second clamp piece to guide the body portion in a wound state, and the second clamp piece includes a wire groove into which an end of the joint wire is inserted, and a fixing plate that closes a portion of the wire groove to prevent the end of the joint wire from coming out of the wire groove.

[0021] The above-mentioned means for solving the problems are merely examples and should not be construed as limiting the present invention. In addition to the above-mentioned exemplary embodiments, there may be additional embodiments described in the drawings and the detailed description of the invention. Effect of the Invention

[0022] According to any of the above-mentioned means for solving the problems of the present invention, the electrode guide and the electrode unit may be arranged to be separated from each other in most of the sections in the winding state, so that treatment is performed in a state where the space where the electrode unit and the electrode guide are separated from each other is exposed to air, etc., and heat generated in the electrode unit can be easily dissipated by convection heat transfer.

[0023] In addition, according to any one of the problem solving means of the present invention, the electrode unit can be firmly supported by the electrode guide joint while minimizing the number of joint (assembly) points between the electrode unit and the electrode guide, thereby ensuring durability and reliability. Furthermore, the electrode unit and the electrode guide can be easily assembled together.

[0024] Furthermore, since the electrode guide, which is deformed into a winding state by power, and the electrode unit, which is placed in close contact with a tube inside the body, are constructed separately, it is possible to suppress the effects of power transmission, such as the transmission of vibrations and force to a tube inside the body. [Brief description of the drawings]

[0025] [Figure 1] 1 is a side view of an electrode device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a perspective view showing a wound state of an electrode guide according to an embodiment of the present invention. [Figure 3a] 5A to 5C are diagrams illustrating a process in which an electrode guide according to an embodiment of the present invention is deformed into a winding state. [Figure 3b] 5A to 5C are diagrams illustrating a process in which an electrode guide according to an embodiment of the present invention is deformed into a winding state. [Figure 3c] 5A to 5C are diagrams illustrating a process in which an electrode guide according to an embodiment of the present invention is deformed into a winding state. [Figure 4] 1 is a perspective view showing a body portion and a coupling portion of an electrode guide according to an embodiment of the present invention; [Diagram 5] FIG. 2 is a plan view showing a portion of an electrode unit according to an embodiment of the present invention. [Figure 6a] FIG. 2 is an exploded perspective view of an electrode unit according to an embodiment of the present invention. [Figure 6b] FIG. 2 is an exploded perspective view of an electrode unit according to an embodiment of the present invention. [Figure 7] 1 is an exploded perspective view of an electrode unit and a coupling portion according to an embodiment of the present invention; [Figure 8] 1 is a perspective view showing a state in which an electrode unit and a coupling part according to an embodiment of the present invention are coupled to each other; [Figure 9a] 1 is a side view showing an attachment state between an electrode layer and a fixing layer of an electrode unit according to an embodiment of the present invention. FIG. [Figure 9b] 1 is a side view showing an attachment state between an electrode layer and a fixing layer of an electrode unit according to an embodiment of the present invention. FIG. [Figure 10a] FIG. 9b shows the electrode guide and electrode unit wrapped around tubular tissue in the attached state according to FIG. 9a. [Figure 10b] FIG. 9b shows the electrode guide and electrode unit wrapped around tubular tissue in the attached state according to FIG. 9b. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. In the drawings, in order to clearly explain the present invention, parts that are not related to the description are omitted, and similar parts are designated by similar reference numerals throughout the specification.

[0027] In this specification, the singular expression includes the plural expression unless a clearly different meaning is indicated in the context.

[0028] In describing the embodiments disclosed in this specification, if it is determined that a detailed description of related publicly known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description will be omitted.

[0029] In this specification, when a part is said to "comprise" a certain element, this means that it may further include other elements, not excluding other elements, unless specifically stated to the contrary, and should be understood not to preclude the presence or possibility of addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0030] In this specification, terms indicating positions and directions such as "upper," "lower," "left," "right," "front," "rear," etc. are used only to describe the relative positions and directions of objects based on the drawings, and do not limit the present invention.

[0031] The attached drawings are intended only to aid in understanding the embodiments disclosed in this specification, and are not intended to limit the technical ideas disclosed in this specification. It should be understood that the attached drawings include all modifications, equivalents, and alternatives included in the idea and technical scope of the present invention.

[0032] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0033] Fig. 1 is a side view of an electrode device 100 according to an embodiment of the present invention, Fig. 2 is a perspective view showing a wound state of an electrode guide 130 according to an embodiment of the present invention, Figs. 3a to 3c are views showing a process in which the electrode guide 130 according to an embodiment of the present invention is transformed into a wound state, and Fig. 4 is a perspective view showing a body part 131 and a coupling part 132 of the electrode guide 130 according to an embodiment of the present invention.

[0034] First, referring to FIG. 1, an electrode device 100 according to an embodiment of the present invention may include a body 110, an electrode unit 120, and an electrode guide .

[0035] The main body 110 may include a shaft 111 extending in one direction, a grip portion 112 connected to the shaft 111 so as to be gripped by a practitioner, a guide operation portion 113 formed on the grip portion 112 and capable of operating the operation of the electrode guide 130, and an electrode operation portion 114 formed on the grip portion 112 and capable of operating energy transmission to the electrode unit 120. Elements for driving and controlling the electrode unit 120 and the electrode guide 130 may be disposed inside the main body 110.

[0036] The electrode unit 120 and the electrode guide 130 are formed to protrude from one end of the shaft 111 and are configured to be wrapped around at least a portion of the nerves distributed in the tubular tissue inside the body by the practitioner's manipulation, etc., to block or regulate them.

[0037] For example, as shown in FIG. 2, the electrode unit 120 can be wrapped around the outer surface of a tubular tissue V in the body to contact the nerves distributed in the tissue V and transmit electrical stimulation or various energies to block or regulate at least a portion of the nerves.

[0038] At this time, the electrode guide 130 can function to bring the electrode unit 120 into contact with the tubular tissue V. The electrode guide 130 can be combined with the electrode unit 120 and transformed into a winding state that brings the electrode unit 120 into contact with the tubular tissue V. The winding state may refer to, for example, the state shown in Figures 2 and 3c.

[0039] 3a to 3c and 4, in order to realize the transformation into the wound state, the electrode guide 130 provided in the present invention may include a body portion 131 and a coupling portion 132. The body portion 131 may be disposed so as to be wrapped around the tubular tissue V with the electrode unit 120 sandwiched therebetween in the wound state.

[0040] According to one embodiment of the present invention, the electrode guide 130 is housed inside the shaft 111 together with the electrode unit 120, and can be deformed into a winding state while being pulled out toward the front F from one end for treatment.

[0041] 3a to 3c, the multiple body portions 131 may be pulled out sequentially and move toward one side to be in a winding state in which they are entirely wrapped around the tubular tissue V. However, in the winding state, the electrode guide 130 may be spaced apart from the outer circumferential surface of the tubular tissue V, and the electrode unit 120 disposed inside the wound electrode guide 130 may be in close contact with the outer circumferential surface of the tubular tissue V.

[0042] According to an embodiment of the present invention, the torso 131 may include a first torso group 131x and a second torso group 131y. As shown in Figures 3a to 4, the first torso group 131x may have a first length in the longitudinal direction, and the second torso group 131y may have a second length longer than the first length. As an example, the first torso group 131x and the second torso group 131y may each include, for example, six joints of different lengths.

[0043] Due to the difference in length between the first and second fuselage groups 131x and 131y, in a winding state, the first fuselage group 131x can form a first radius of curvature, and the second fuselage group 131y can form a second radius of curvature larger than the first radius of curvature. That is, as shown in Fig. 3c, a joint having a relatively short length (first fuselage group 131x) can form a small radius of curvature, and a joint having a long length (second fuselage group 131y) can form a large radius of curvature.

[0044] Specifically, the first body group 131x forming the first radius of curvature may be disposed on the side closer to the coupling portion 132, and the second body group 131y forming the second radius of curvature may be disposed on the side closer to the shaft 111.

[0045] If the body portion 131 disposed closer to the coupling portion 132 in the wound state forms a smaller radius of curvature, as shown in Fig. 3c, a path for the coupling portion 132 to enter the space between the tubular tissue V and the shaft 111 can be created. The electrode guide 130 including such a body portion 131 may have a spiral shape as a whole.

[0046] Meanwhile, Fig. 5 is a plan view showing a part of the electrode unit 120 according to an embodiment of the present invention, Figs. 6a and 6b are exploded perspective views of the electrode unit 120 according to an embodiment of the present invention, Fig. 7 is an exploded perspective view of the electrode unit 120 and the coupling part 132 according to an embodiment of the present invention, and Fig. 8 is a perspective view showing a state in which the electrode unit 120 and the coupling part 132 according to an embodiment of the present invention are coupled to each other.

[0047] The electrode unit 120 according to one embodiment of the present invention is an electrode unit provided in an electrode device for blocking or regulating nerves in the body, and is configured to be wrapped around tubular tissue in the body, and may be formed by extending a fastening portion 1201, an extension portion 1202 and an electrode portion 1203 in sequence, as shown in FIG. 5.

[0048] The fastening portion 1201 may have a through hole 120a formed therein for coupling with the coupling portion 132 which will be described with reference to FIGS.

[0049] The electrode unit 120 may be configured so that when wrapped around a tubular tissue in the body, the electrode section 1203 is wound around the tubular tissue while being in contact with the outer surface of the tubular tissue. The electrode unit 120 may be configured with a flexible PCB for transmitting high-frequency energy, a transducer for transmitting ultrasonic energy, a metal electrode for transmitting high-voltage energy, or the like so that the electrode section 1203 can be wrapped around the outer surface of the tubular tissue to transmit energy.

[0050] An electrode 122 capable of transmitting energy to tubular tissue may be formed on the electrode portion 1203 of such an electrode unit 120, and the electrode 122 may be configured as a bipolar electrode, which is a pair of electrodes extending parallel to each other on the electrode portion 1203.

[0051] The electrodes 122 may be made of materials that are harmless to the human body and can transmit electricity, such as stainless steel, gold, etc., for nerve block or denervation or control or modulation, and the electrodes 122 can transmit various types of energy from an energy source generator.

[0052] For example, radio-frequency (RF) energy, electrical energy, laser energy, ultrasonic energy, high-intensity focused ultrasound energy, cryogenic energy, and other thermal energies may be utilized.

[0053] Furthermore, a sensor unit 123 may be disposed between the electrodes 122 on the electrode unit 1203, and the sensor unit 123 may be a thermocouple made of a first metal 123a and a second metal 123b. As an example, the sensor unit 123 may be made of a pair of copper and constantan. When a nerve cutting operation is performed by the electrode device 100 according to an embodiment of the present invention, the sensor unit 123 can monitor the temperature of the treatment site and measure nerve signals of the tissue V.

[0054] And, the electrode unit 120 according to an embodiment of the present invention may include an electrode layer 121 and a fixing layer 126 laminated on the electrode layer 121, as shown in FIG.

[0055] The electrode layer 121 may be formed by extending an electrode layer fastening portion 1211, an electrode layer extending portion 1212, and an electrode layer electrode portion 1213 in this order.

[0056] The fixing layer 126 may be laminated on the electrode layer 121 over the fastening portion 1211 , the extending portion 1212 and a part of the electrode portion 1213 of the electrode layer 121 .

[0057] The fixing layer 126 may be provided with a first fastening portion 1261 formed at one end, a second fastening portion 1263 formed at the other end, and a connecting portion 1262 connecting the first and second fastening portions 1261, 1263 together.

[0058] The first fastening portion 1261 of the fixing layer corresponds to the electrode layer fastening portion 1211 and may be laminated to the electrode layer fastening portion 1211 to form the fastening portion 1201 of the electrode unit.

[0059] The connecting portion 1262 of the fixing layer may extend to the extending portion 1212 of the electrode layer 121 and a part of the electrode portion 1213. In this case, a part of the connecting portion 1262 of the fixing layer may correspond to the extending portion 1212 of the electrode layer and may be laminated on the extending portion 1212 of the electrode layer to form the extending portion 1202 of the electrode unit. Then, the remaining part of the connecting portion 1262 of the fixing layer may be laminated on the electrode portion 1213 of the electrode layer.

[0060] The boundary between the connecting portion 1262 of the fixing layer and the second fastening portion 1263 may be configured such that the connecting portion 1262 of the fixing layer and the second fastening portion 1263 are bent, as shown in FIG. 6b.

[0061] Hereinafter, the connection between the electrode guide and the electrode unit 120 will be described with reference to FIGS.

[0062] In the electrode guide, the coupling part 132 may be configured to be connected to an end of the body part and to fix an end of the electrode unit 120. As shown in Fig. 7, the coupling part 132 may include a first clamp piece 132a and a second clamp piece 132b. In order to guide the body part into a wound state, the coupling part 132 may further include a joint wire 133 that passes through the body part and is coupled to the second clamp piece 132b.

[0063] The joint wire 133 may be formed to pass through the body in sequence. The joint wire 133 may guide the electrode guide to be deformed into a shape that is wrapped around a vessel in the body.

[0064] The second clamp piece 132b may include a wire groove 132b2 formed to receive the end of the joint wire 133, and a fixing plate 132b3 that closes a portion of the wire groove 132b2 to prevent the end of the joint wire 133 from coming out of the wire groove 132b2.

[0065] The wire groove 132b2 may be formed to accommodate an end of the joint wire 133 between the multiple fastening grooves 132b1 provided in the second clamp piece 132b. The end of the joint wire 133 inserted into the wire groove 132b2 has a larger diameter than the wire 133 or a different shape than the wire 133, and can be hooked onto the fixing plate 132b3 and fixed without coming off the wire groove 132b2.

[0066] The first clamp piece 132a may be formed to be fixed to the torso, and the second clamp piece 132b may be coupled to the first clamp piece 132a via a portion of the electrode unit 120, preferably the fastening portion 1201 of the electrode unit and the second fastening portion 1263 of the fixing layer.

[0067] Looking specifically at the connection structure between the first clamp piece 132a and the second clamp piece 132b, in one embodiment of the present invention, either the first clamp piece 132a or the second clamp piece 132b may have a protrusion 132a1 formed to protrude in one direction, and the other either the first clamp piece 132a or the second clamp piece 132b may have a fastening groove 132b1 recessed to correspond to the protrusion 132a1.

[0068] For example, if the first clamp piece 132a has a protrusion 132a1, the second clamp piece 132b has a fastening groove 132b1, and conversely, if the second clamp piece 132b has a protrusion, the second clamp piece 132b has a fastening groove.

[0069] The protrusion 132a1 of the first clamp piece 132a may be coupled to the fastening groove 132b1 of the second clamp piece 132b by penetrating the second fastening portion of the fixing layer and the fastening portion of the electrode unit 120. In this case, the fastening portion 1201 of the electrode unit and the second fastening portion 1263 of the fixing layer may be formed with through holes 120a and 1263a through which the protrusion 132a1 can pass, respectively.

[0070] When the first clamp piece 132a and the second clamp piece 132b are fastened with the fastening portion 1201 of the electrode unit and the second fastening portion 1263 of the fixing layer interposed between the first clamp piece 132a and the second clamp piece 132b, the electrode unit 120 can be firmly fixed in a state where it is wrapped around the second clamp piece 132b as shown in Fig. 8. Specifically, the fastening portion, the extension portion and a part of the electrode portion of the electrode layer, and the fixing layer are wrapped around the second clamp piece 132b.

[0071] Figures 9a and 9b are side views showing the attachment state of the electrode layer 121 and the fixing layer 126 of an electrode unit according to one embodiment of the present invention, and Figures 10a and 10b are views showing the electrode guide 130 and the electrode unit 120 wrapped around a tubular tissue V in the attachment state shown in Figures 9a and 9b, respectively.

[0072] In Fig. 9, the tip (left end) of the coupling portion 132 coincides with the boundary between the extension portion and the electrode portion of the electrode unit. In view of this, it can be seen that the area indicated by S in Fig. 9a corresponds to the fastening portion, extension portion, and part of the electrode portion of the electrode unit, as well as the first fastening portion and connecting portion of the fixing layer. And it can be seen that the area indicated by S in Fig. 9b corresponds to the fastening portion and extension portion of the electrode unit, as well as the first fastening portion and connecting portion of the fixing layer.

[0073] The anchoring layer 126 according to an embodiment of the present invention may be attached to the electrode layer 121 in a state where it is laminated on the electrode layer 121 .

[0074] For example, for the region indicated as S in Fig. 9a, the fixing layer 126 may be attached to the electrode layer 121. That is, the fixing layer 126 may have a first fastening portion and an entire connecting portion attached to the electrode layer 121. Thus, the first fastening portion of the fixing layer 126 may be attached to a corresponding fastening portion of the electrode layer 121, and the entire connecting portion of the fixing layer 126 may be attached over the extension portion of the electrode layer 121 and a part of the electrode portion.

[0075] In this attached state, the electrode guide 130 and the electrode unit 120 may be wrapped around the tubular tissue V, as shown in Fig. 10a. At this time, the electrode guide 130 may be deformed into a winding state in which the electrode unit 120 contacts the tubular tissue V, and may be arranged so as to be wrapped around the tissue V with the electrode unit 120 sandwiched therebetween. The electrode unit 120 may be wrapped around the tissue V while being in contact with the outer surface of the tissue V, with a part of the electrode portion of the electrode unit 120 in contact with the second clamp piece, which is the first node of the coupling portion 132.

[0076] Alternatively, the anchoring layer 126 may be attached to the electrode layer 121 , but the anchoring layer 126 and the electrode layer 121 may not be attached to at least a portion of the electrode portion of the electrode layer 121 .

[0077] For example, the fixing layer 126 may be attached to the electrode layer 121 in the region indicated by S in FIG. 9b. That is, the fixing layer 126 may have a first fastening portion and a part of a connecting portion attached to the electrode layer 121. Here, the first fastening portion of the fixing layer 126 may be attached to a portion corresponding to the fastening portion of the electrode layer 121, and a part of the connecting portion of the fixing layer 126 may be attached to the entire extending portion of the electrode layer 121. And the remaining part of the connecting portion of the fixing layer 126 may not be attached to the electrode layer 121, particularly not to the electrode portion of the electrode layer 121.

[0078] In this attached state, the electrode guide 130 and the electrode unit 120 may be wrapped around a tubular tissue V as shown in Fig. 10b. At this time, since the electrode portion of the electrode unit 120 does not contact the second clamp piece, which is the first node of the coupling portion 132, the electrode unit can form an even smaller radius of curvature, and therefore may be wrapped around a tubular tissue V with an even smaller diameter than in the attached state as shown in Fig. 9a.

[0079] Alternatively, although not shown, a first fastening portion of the fixing layer may be attached corresponding to a fastening portion of the electrode layer, a portion of the connecting portion of the fixing layer may be attached across the extension portion of the electrode layer and a portion of the electrode portion of the electrode layer, and the remaining portion of the connecting portion of the fixing layer may not be attached to the electrode portion of the electrode layer.

[0080] In such an attached state, the electrode unit can form a radius of curvature smaller than the radius of curvature formed by the electrode unit in the attached state shown in Figure 9a, and can form a radius of curvature larger than the radius of curvature formed by the electrode unit in the attached state shown in Figure 9b.

[0081] The above description of the present invention is for illustrative purposes only, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and are not limiting. For example, each component described as a single type may be implemented in a distributed form, and similarly, each component described as a distributed type may be implemented in a combined form.

[0082] The scope of the present invention is indicated by the claims set forth below rather than by the above detailed description, and all modifications and variations derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included within the scope of the present invention.

Claims

1. An electrode unit provided in an electrode device for blocking or regulating a nerve in a body, the electrode unit being arranged to be wrapped around a tubular tissue in the body, an electrode layer including a fastening portion fastened to an electrode guide, an extension portion, and an electrode portion extending in sequence, the electrode portion having an electrode formed on one side thereof being wound around the tubular tissue; a fixing layer laminated on the electrode layer with respect to a portion of the electrode portion, the fastening portion, and the extending portion; Electrode unit.

2. The fixed layer comprises: a first fastening portion at one end configured to be fastened to the electrode guide together with the fastening portion; a second fastening portion formed at the other end to be fastened to the electrode guide together with the fastening portion and the first fastening portion; a connecting portion connecting the first and second fastening portions, The boundary between the connecting portion and the second fastening portion is configured to be bendable. The electrode unit according to claim 1 .

3. the anchoring layer is attached to the electrode layer, but at least a portion of the electrode portion of the electrode layer is not attached to the anchoring layer; The electrode unit according to claim 1 .

4. The first fastening portion of the fixing layer is attached to the fastening portion of the electrode layer, and the entire connecting portion of the fixing layer is attached across the extension portion of the electrode layer and a part of the electrode portion of the electrode layer. The electrode unit according to claim 2 .

5. the first fastening portion of the fixing layer is attached to the fastening portion of the electrode layer correspondingly, a portion of the connecting portion of the fixing layer is attached to the entire extension portion of the electrode layer, and a remaining portion of the connecting portion of the fixing layer is not attached to the electrode portion of the electrode layer; The electrode unit according to claim 2 .

6. the first fastening portion of the fixing layer is attached to the fastening portion of the electrode layer, a portion of the connecting portion of the fixing layer is attached across the extension portion of the electrode layer and a portion of the electrode portion of the electrode layer, and a remaining portion of the connecting portion of the fixing layer is not attached to the electrode portion of the electrode layer; The electrode unit according to claim 2 .

7. a sensor portion disposed on the electrode portion of the electrode layer and configured to sense temperature. The electrode unit according to claim 1 .

8. An electrode device for blocking or modulating nerves in the body, comprising: The electrode unit according to claim 1 ; an electrode guide that is deformed into a wound state so as to bring the electrode unit into contact with the tubular tissue; The electrode guide is a body portion configured to be wound around the tubular tissue and spaced apart from the electrode unit in the wound state; a coupling portion connected to an end portion of the body portion and configured to fix the fastening portion of the electrode unit; The extension portion is arranged to be wrapped around at least a portion of the coupling portion. Electrode device.

9. The coupling portion is a first clamp piece configured to be secured to the barrel; a second clamp piece coupled to the first clamp piece across the fastening portion of the electrode unit, The extension portion of the electrode unit is arranged to be wrapped around the second clamp piece.

9. The electrode device of claim 8.

10. Either the first clamp piece or the second clamp piece has a protruding portion formed to protrude in one direction, the other of the first clamp piece and the second clamp piece includes a fastening groove cut out to correspond to the protrusion; The fastening portion of the electrode unit is formed with a through hole through which the protrusion passes.

10. The electrode device of claim 9.

11. The fastening portion of the electrode unit is configured to be inserted between the first clamp piece and the second clamp piece.

10. The electrode device of claim 9.

12. The electrode guide further includes a joint wire that passes through the body portion and is coupled to the second clamp piece to guide the body portion into a wound state, The second clamp piece includes: a wire groove formed so that an end of the joint wire is inserted; a fixing plate that closes a portion of the wire groove to prevent the end of the joint wire from being removed from the wire groove.

10. The electrode device of claim 9.

Images