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 in-vivo tube; an electrode guide which is coupled to the tip of the electrode unit and guides the electrode unit to come into contact with the tube in the body; an electrode guide driving unit configured to advance and retreat the electrode guide; and an electrode driving unit configured to move the electrode unit forward and backward in conjunction with the electrode guide driving unit, the electrode driving unit comprising: a tension holding unit connected to one end of the electrode unit; and a moving part that is connected to the tension holding unit and that moves the tension holding unit forward and backward, the tension holding unit including a rod part that supplies tension to the electrode unit, the rod part detecting tension by a sensor, and the rod part being automatically driven in the front-back direction in accordance with the detected tension.

Description

Technical Field

[0001] The present invention relates to an electrode device for blocking or adjusting nerves in a body. Background Art

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

[0003] Nerves usually surround the outer walls of tubes such as blood vessels and bronchi. Therefore, it may be necessary to measure nerve signals by surrounding the outer walls of such tubes, or to damage or destroy the nerves by delivering electrical stimulation or various energies to the nerves.

[0004] For example, when performing renal artery surgery, the main renal artery, which is the target, has a diameter of 5mm to 7mm, while the accessory renal artery, which has a diameter of 1mm to 2mm, can also be the target. Furthermore, the size of the vessels where nerves are distributed varies from person to person and also varies depending on the location of the vessel.

[0005] During these procedures, it's crucial to precisely position the assembly containing the electrodes formed at the distal end of the catheter so that it surrounds the outer wall of the tube. Specifically, to effectively block or modulate nerves, the assembly must circumferentially surround the outer wall of the tube containing the nerves, and this positioning of the electrode-enclosed assembly around the tube must be performed reliably and quickly. It's particularly important that the electrode-enclosed assembly securely adheres to the outer wall of the internal tube in a manner that prevents damage to the tube, which is susceptible to external stimuli.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Korean Patent Publication No. 2013-0108401 (published on October 2, 2013) Summary of the Invention

[0009] Technical issues

[0010] An object of the present invention is to solve the above-mentioned problems of the prior art and to provide an electrode device having the following structure: a guide electrode surrounds the outer circumference of a tube in a body.

[0011] Another object of the present invention is to provide an electrode device in which an assembly formed with electrodes is automatically adjusted and securely attached to the outer wall of a tube in the body, thereby protecting the tube in the body, which is easily damaged by external stimuli.

[0012] However, the technical problems to be solved by this embodiment are not limited to the above technical problems, and there may be other technical problems.

[0013] Technical Solution

[0014] As a means to solve the above-mentioned technical problems, one embodiment of the present invention provides an electrode device for blocking or adjusting nerves in the body, which includes: a main body having a shaft; an electrode unit formed by pulling out from one end of the shaft, and blocking or adjusting at least a portion of the nerves in the tube in the body; an electrode guide coupled to the end of the electrode unit and guiding the electrode unit to contact the tube in the body; an electrode guide driving unit configured to move the electrode guide forward and backward; and an electrode driving unit configured to move the electrode unit forward and backward in conjunction with the electrode guide driving unit, the electrode driving unit including: a tension maintaining unit connected to one end of the electrode unit; and a moving part connected to the tension maintaining unit and moving the tension maintaining unit forward, the tension maintaining unit including a rod portion, the rod portion providing tension to the electrode unit, the rod portion detecting tension using a sensor and automatically driving in a forward and backward direction according to the detected tension.

[0015] The above solutions to the problems are merely exemplary and should not be construed as limiting the present invention. In addition to the above exemplary embodiments, there may be additional embodiments described in the drawings and detailed description.

[0016] Effects of the Invention

[0017] According to any of the aforementioned means for solving the problems of the present invention, when the electrode lead is positioned close to the tube, the electrode drive unit automatically and gradually causes the electrode unit to adhere closely to the outer wall of the tube. The electrode drive unit automatically adjusts the assembly having the electrodes and securely adheres them to the outer wall of the tube in the body while maintaining the adherence with a constant force, thereby protecting the tube in the body, which is easily damaged by external stimuli. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a side view of an electrode device according to one embodiment of the present invention.

[0019] Figure 2 It shows Figure 1 The electrode guide shown is in a state where the guide electrode unit surrounds a blood vessel.

[0020] Figures 3a to 3e 1 is a diagram illustrating an operation process of an electrode lead according to an embodiment of the present invention.

[0021] Figure 4 yes Figure 2 An exploded perspective view of a portion of the joint is shown.

[0022] Figure 5 Is set in Figure 1 A cross-sectional view of the electrode lead drive unit inside the main body is shown.

[0023] Figures 6a to 6i FIG. 1 is a diagram illustrating an operation process of an electrode driving unit according to an embodiment of the present invention.

[0024] Figure 7 FIG. 1 is an exemplary diagram for explaining the operation process of a rod portion in an electrode driving unit according to another embodiment of the present invention. DETAILED DESCRIPTION

[0025] Hereinafter, 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 implement the embodiments of the present invention. However, the present invention can be implemented in various forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention in the accompanying drawings, parts not related to the description are omitted, and similar reference numerals are used for similar parts throughout the specification.

[0026] Throughout this specification, when a component is referred to as being "connected" to another component, this includes not only the case of being "directly connected" but also the case of being "electrically connected" to another component. Furthermore, when a component is referred to as "comprising" a certain component, unless otherwise specified, this means that other components may be included, not that other components are excluded. It should be understood that this does not exclude the possibility of the presence of one or more other features or quantities, steps, actions, components, parts, or combinations thereof.

[0027] Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0028] Figure 1 is a side view of an electrode device according to one embodiment of the present invention. Figure 2 It shows Figure 1 The electrode guide shown is in a state where the guiding electrode unit surrounds the blood vessel. Figures 3a to 3e 1 is a diagram illustrating an operation process of an electrode lead according to an embodiment of the present invention. Figure 4 yes Figure 2 The exploded perspective view of a portion of the joint shown, Figure 5 Is set in Figure 1 A cross-sectional view of the electrode lead drive unit inside the main body is shown. Figures 6a to 6i FIG. 1 is a diagram showing an operation process of an electrode driving unit according to an embodiment of the present invention. Figure 7 FIG. 1 is an exemplary diagram for explaining the operation process of a rod portion in an electrode driving unit according to another embodiment of the present invention.

[0029] Reference Figure 1 The electrode device 100 includes a main body 110 , an electrode unit 120 , an electrode guide 130 , an electrode guide driving unit 140 formed inside the main body 110 , and an electrode driving unit 150 .

[0030] The main body 110 may include: a shaft 111 extending in one direction; a gripping portion 112 formed to be connected to the shaft 111 for gripping by an operator; a guide operating portion 113 formed on the gripping portion 112 to operate the movement of the electrode guide 130; and an electrode operating portion 114 formed on the gripping portion 112 to operate the energy transfer to the electrode unit 120.

[0031] Elements for driving and controlling the electrode unit 120 and the electrode guide 130 may be provided inside the body 110. For example, an electrode guide driving unit 140 for driving and controlling the electrode guide 130 and an electrode driving unit 150 for driving and controlling the electrode unit 120 may be provided inside the body 110.

[0032] Electrode unit 120 is formed by extending from one end of shaft 111 and is configured to block or modulate at least a portion of nerves distributed in tissue including a tube within the body, depending on the operator's operation. Electrode unit 120 is housed within shaft 111 and can be extended to the outside of the body via electrode guide 130, described later, when electrode device 100 is in operation.

[0033] Reference Figure 2 The electrode unit 120 may include a base 121, an electrode portion 122, and a sensor portion 123. For the electrode device 100, the electrodes surround the outer surface of the tube or tubular tissue V within the body and can transmit energy through the electrode portion 122. To this end, the base 121 may be a flexible PCB.

[0034] The electrode portion 122 may be composed of two electrodes extending parallel to each other on the base portion 121. The base portion 121 and the electrode portion 122 may be formed as a tube or the like extending in the circumferential direction and surrounding the body.

[0035] The electrode portion 122 may be made of a material that is harmless to the human body and is conductive, such as stainless steel or gold, to block or denervate or control or modulate nerves.

[0036] In addition, the electrode portion 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.

[0037] In addition, the electrode portion 122 can be formed as a flexible PCB for transmitting high-frequency energy, a transducer for transmitting ultrasonic energy, a metal electrode for transmitting high-voltage energy, etc., to transmit energy for damaging nerves.

[0038] Furthermore, a sensor portion 123 may be formed on the base portion 121. In one example, the sensor portion 123 may be a thermocouple that measures temperature by contacting a tube or the like in the body. When performing a nerve resection surgery using the electrode device 100, the sensor portion 123 may monitor the temperature of the surgical site. In another example, the sensor portion 123 may also measure nerve signals from the tube.

[0039] For example, the sensor portion 123 may be a thermocouple made of a pair of copper and constantan.

[0040] The electrode guide 130 performs a function of bringing the electrode unit 120 into contact with a tube in the body. The electrode guide 130 is coupled to the electrode unit 120 and guides the electrode unit 120 to be deformed into a wound state so as to contact the tube in the body.

[0041] Reference Figures 2 to 4 The electrode guide 130 includes a plurality of joints 131. The plurality of joints 131 can form a curved winding path so as to surround the outer circumference of the tube V within the body via the electrode unit 120. Figure 2 、 Figure 3c as well as Figure 3d The state shown in FIG. 1 may be a state in which the plurality of joint portions 131 are completely pulled out and arranged along the curved winding path.

[0042] In addition, refer to Figures 3a to 3e The electrode guide 130 may further include a tip joint 132 and a wire 133. The tip joint 132 supports the electrode unit 120 and may be coupled to the ends of the plurality of joints 131 connected in sequence.

[0043] The tip joint 132 can be pulled out from one end of the shaft 111 before the plurality of joints 131. Figure 3d As shown, the tip joint 132 may be located near the tube V in the body, and may have a tapered shape with its width or thickness becoming thinner toward the end to prevent interference with the electrode unit 120 or maximize the surface area surrounding the tube in the body. The end of the electrode unit 120 may be fastened and fixed to the tip joint 132.

[0044] The wire 133 may be formed to sequentially pass through the plurality of joints 131. Figure 4 A wire hole 131 c may be formed in the joint portion 131 along the long side direction, and the wire hole 131 c is for the wire 133 to pass through.

[0045] The ends of the wires 133 passing through the wire holes 131 c in sequence may be coupled and fixed to the tip connector 132 , and the wires 133 may slide relative to the joints 131 along the longitudinal direction inside the wire holes 131 c .

[0046] Therefore, the guide wire 133 can guide the plurality of joints 131 and the tip joint 132 to be disposed on the winding path, and provide a force for pulling the plurality of joints 131 and the tip joint 132 in a direction surrounding the tube V.

[0047] The wire 133 can protrude from one end of the shaft 111 together with the multiple joints 131. In this case, the wire 133 can be designed to protrude less than the joints 131, thereby providing a force that pulls the multiple joints 131 in a winding path.

[0048] The joint portion 131 may include a hinge portion 131a and a winding support portion 131b. The hinge portion 131a may be formed on one or both sides of the joint portions 131 in the longitudinal direction as a structure for rotatably connecting with the adjacent joint.

[0049] like Figure 4 As shown, the hinge portion 131a may form a rotation axis in a direction intersecting the longitudinal direction and connect to the hinge portion 131a of the adjacent joint portion 131. In each hinge portion 131a, a hinge portion (not shown) may be inserted and fastened along the direction forming the rotation axis.

[0050] The winding support portion 131 b is a structure for supporting the plurality of joint portions 131 on the winding path, and may be formed on one side or both sides in the longitudinal direction so as to support adjacent joint portions 131 .

[0051] like Figure 2 as well as Figure 4As shown, the winding support portion 131 b may be formed at a position adjacent to the hinge portion 131 a along the inner side (where the joint portion 131 is wound) of the electrode lead 130 .

[0052] The winding support portion 131 b may be formed as a surface having a predetermined angle and area, and supported in surface contact with adjacent winding support portions 131 b , so that the winding form of the electrode lead 130 may be fixed.

[0053] The winding support portion 131 b and the guide wire hole 131 c may be formed at a position spaced apart from the rotation center of the hinge portion 131 a toward the inside of the tube V in the body.

[0054] When the wire 133 is pulled further rearward than the electrode lead 130 (the length of the wire 133 pulled out from the shaft 111 is shorter than the length of the joint 131), tension is applied to the wire 133 in the direction in which the electrode lead 130 winds. Conversely, the winding support 131b provides a force that supports the joint 131 in a direction that prevents the electrode lead 130 from winding. The wire 133 and the winding support 131b balance forces in opposite directions, thereby securing the electrode lead 130 along its winding path.

[0055] In addition, the electrode lead 130 may include a first joint group 131x and a second joint group 131y. That is, the plurality of joint parts 131 may be divided into the first joint group 131x and the second joint group 131y having different lengths from each other.

[0056] According to the difference in length, the first joint group 131x can form a first curvature radius, and the second joint group 131y can form a second curvature radius larger than the first curvature radius. Figure 3d It is confirmed that the joint portion having a relatively short length (the first joint group 131x) can form a small curvature radius, while the joint portion having a longer length (the second joint group 131y) can form a large curvature radius.

[0057] When a path with a smaller curvature radius is formed by the joint portion 131 located on the side close to the tip joint 132, as shown in FIG. Figure 3d As shown in FIG, a path for the tip joint 132 to enter the space between the tube in the body and the shaft 111 may be formed. Also, the electrode lead 130 including the joint portion 131 may have a spiral shape as a whole.

[0058] Refer to 3a to Figure 3e The electrode guide 130 may be housed inside the shaft 111 together with the electrode unit 120 and may protrude from one end toward the front F in a manner forming a curved winding path for performing surgery.

[0059] For example, the plurality of joints 131 may be sequentially pulled out and, depending on the displacement difference with the guide wire 133 , may be moved along a curved winding path to surround the tube V as a whole.

[0060] Furthermore, the electrode guide 130 is spaced apart from the outer circumferential surface of the tube, 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.

[0061] The plurality of joints 131 can be pulled out from the shaft 111 by the electrode guide driving unit 140 and wound in a direction surrounding the tube V. Therefore, the operating space of the electrode guide 130 can be minimized, and nerve blocking or adjustment can be performed safely and accurately even in a narrow space.

[0062] Reference Figure 5 The electrode lead driving unit 140 may be configured to move the electrode lead 130 forward and backward, and may include a frame 141 , a motor portion 142 , a rod block 143 , a wire block 144 , and a variable connection portion 145 .

[0063] The frame 141 may be provided to be fixed inside the main body, and may include a guide groove or a guide shaft extending in the front-rear direction.

[0064] The motor part 142 is connected to the frame 141 and can rotate the rotation shaft 142a, wherein the rotation shaft 142a is rotatably supported by the frame 141. For example, the motor part 142 can receive electric power to rotate the rotation shaft 142a.

[0065] One end of the rod block 143 may be connected to the joint portion 131. The rod block 143 may be moved forward and backward by the motor portion 142. Specifically, the rod block 143 may be moved forward and backward by engaging with a rotating shaft 142a extending in the front-rear direction and having a thread formed thereon.

[0066] The rod block 143 can have a rod 143a and a concave-convex structure, wherein the rod 143a is arranged inside the shaft 111 and is formed in a manner extending in one direction (front and back direction) to support the joint part 131, and the concave-convex structure is slidably combined with the guide groove or guide shaft of the frame 141.

[0067] In addition to the aforementioned configuration of the rotating shaft 142a and the motor unit 142, the electrode guide drive unit 140 according to the present invention can also be configured to move the rod block 143 in the front-to-rear direction using various linear actuation methods. For example, the electrode guide drive unit 140 can include a cylinder-type linear actuator, such as a pneumatic, hydraulic, or electric linear actuator, or a piezoelectric / ultrasonic linear actuator.

[0068] The wire block 144 is formed to support the wire 133 and can be moved forward and backward in conjunction with the rod block 143. The wire block 144 can include a concave-convex structure that is 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 in parallel with the rod block 143.

[0069] The variable connection part 145 can connect the rod block 143 and the wire block 144 to each other and can change the distance between the rod block 143 and the wire block 144. To this end, the variable connection part 145 can include a rod link 145a, a wire link 145b, a hinge pin 145c and a pin groove 145d.

[0070] The rod link 145a and the wire link 145b may be rotatably connected to the rod block 143 and the wire block 144, respectively. In addition, the rod link 145a and the wire link 145b may be rotatably connected to each other by a hinge pin 145c.

[0071] The pin slot 145d is formed to slidably receive the hinge pin 145c. Specifically, the pin slot 145d is formed to extend at a predetermined inclination angle with respect to the front-rear direction. The pin slot 145d may be formed in the frame 141.

[0072] Furthermore, the electrode unit 120 can be pulled out of the shaft 111 by the electrode drive unit 150 and wound around the tube V by the electrode guide 130. Specifically, the electrode unit 120 and the electrode guide 130 advance along a curved winding path. Once completely pulled out of the shaft 111 and placed, the electrode unit 120 is controlled by the electrode drive unit 150 to gradually adhere to the tube V within the body. Thus, the electrode unit 120 can maintain stable and close contact with the tube V within the body without damaging the tube V, thereby enabling nerve blocking or modulation.

[0073] Reference Figure 6a The electrode drive unit 150 can be configured to work in conjunction with the electrode guide drive unit 140 to advance and retract the electrode unit 120. The electrode drive unit 150 may include a tension maintaining unit 151, a moving portion 152, an advancing rail 153, a retracting rail 154, a connecting rail 155 connecting the advancing rail 153 and the retracting rail 154, and a stopper 156. For example, the advancing rail 153 and the retracting rail 154 may have the same length.

[0074] The tension maintaining unit 151 may be connected to one end of the electrode unit 120 and provide tension to the electrode unit 120. The tension maintaining unit 151 may include a spring portion 151a, a protrusion 151b protruding upward on one side of the tension maintaining unit 151, a rod portion 151c, and an electrode connecting portion 151d located on the other side of the tension maintaining unit 151.

[0075] The protrusion 151 b may be retracted by the rod 151 c . As will be described later, the spring 151 a may provide tension to the electrode unit 120 by the retraction of the rod 151 c .

[0076] The rod 151c can stretch the spring 151a to generate tension. Specifically, the rod 151c can use a sensor to detect the tension generated by the spring 151a. The rod 151c can automatically drive along the front-back direction according to the detected tension.

[0077] 6 a , the rod portion 151 c may include a link 151 c 1 , an actuator 151 c 2 , and a force sensor 151 c 3 .

[0078] After the electrode driving unit 150 and the electrode guide driving unit 140 have completed their forward movement, the rod portion 151 c can cause the protrusion 151 b to retreat through the link 151 c 1 , thereby extending the length of the spring portion 151 a .

[0079] Here, the link 151c1 can retract the protrusion 151b to generate tension of the spring portion 151a. Here, one side of the link 151c1 can be connected to the actuator 151c2, and the other side can be fixed to the force sensor 151c3.

[0080] like Figure 6a As shown, the connecting rod 151c1 can extend along the long side direction. For example, the connecting rod 151c1 can be in the Korean alphabet. The connecting rod 151c1 is extended in a U-shaped manner so as to contact the side surface of the protrusion 151b and limit the movement of the protrusion 151b. The shape of the connecting rod 151c1 can be constructed in various ways and is not limited to the embodiment described here.

[0081] For example, the rod 151c can drive the connecting rod 151c1 in the front-rear direction. In this case, the connecting rod 151c1 can move in a linear sliding manner. The rod 151c can move the connecting rod 151c1 in the front-rear direction to move the protrusion 151b forward or backward.

[0082] The force sensor 151c3 may be formed on the inner side surface of the connecting rod 151c1 that contacts the protrusion 151b. For example, the force sensor 151c3 may be provided on the surface where the connecting rod 151c1 contacts the protrusion 151b. Here, the force sensor 151c3 may be a load cell.

[0083] Force sensor 151c3 formed on the inner side of connecting rod 151c1 can detect the tension generated in spring portion 151a. Specifically, connecting rod 151c1, with force sensor 151c3 on its inner side, moves in the front-to-back direction, causing protrusion 151b to move, thereby generating tension in spring portion 151a. At this time, force sensor 151c3, which contacts protrusion 151b, can detect the tension generated in spring portion 151a.

[0084] On the other hand, the force sensor 151c3 can detect the restoring force of the spring portion 151a after the tension is generated. That is, the force sensor 151c3 can detect the tension or restoring force of the spring portion 151a through the protrusion 151b while in contact with the side surface of the protrusion 151b.

[0085] Actuator 151c2 may be connected to one side of connecting rod 151c. Actuator 151c2 may drive connecting rod 151c1 in the front-rear direction based on the tension of spring portion 151a detected by force sensor 151c3. For example, actuator 151c2 may be a linear actuator that operates in a linear sliding manner.

[0086] Specifically, the actuator 151c2 can drive the connecting rod 151c1 in the backward direction when the restoring force of the spring portion 151a detected by the force sensor 151c3 is smaller than the generated tension. On the other hand, the actuator 151c2 can drive the connecting rod 151c1 in the forward direction when the restoring force of the spring portion 151a detected by the force sensor 151c3 is larger than the generated tension.

[0087] Specifically, rod portion 151c can detect the tension or restoring force of spring portion 151a via force sensor 151c3, and can advance or retract connecting rod 151c1 based on the detected tension or restoring force of spring portion 151a. This allows electrode unit 120 to automatically, more precisely, and safely adhere to the outer wall of tube V, while maintaining a constant force under real-time control.

[0088] According to the present invention, after the connection between the tension holding unit 151 and the moving part 152 is released, the tension of the spring part 151a is slowly transmitted to the electrode unit 120 through the automatic driving of the rod part 151c, thereby making the electrode unit 120 safely and tightly attached to the tube V.

[0089] The electrode connection portion 151d is connected to one side of the electrode unit 120 and can transmit the tension of the spring portion 151a to the electrode unit 120. For example, the protrusion 151b can be retracted by the link 151c1 to allow the electrode unit 120 to contact the tube V.

[0090] The moving unit 152 , while being connected to the tension maintaining unit 151 , can move the tension maintaining unit 151 forward until the electrode guide 130 surrounds the outer circumference of the tube V therein, and then release the connection with the tension maintaining unit 151 .

[0091] The moving portion 152 may include a connection portion 152 a for connection with the tension maintaining unit 151 , a pin 152 b , a support portion 152 c , and a hinge portion 152 d .

[0092] The pin 152b may be formed at one side of the connection portion 152a and may be moved forward along the forward track 153 or moved backward along the backward track 154. Therefore, the moving portion 152 may be moved forward along the forward track 153 together with the tension maintaining unit 151 by the pin 152b, and may be moved backward along the backward track 154 after the connection with the tension maintaining unit 151 is released.

[0093] The support portion 152c may be connected to the electrode lead driving unit 140. For example, the support portion 152c may be connected to the lead block 144.

[0094] The hinge portion 152d allows the connection portion 152a to rotate, and when the pin 152b moves from the advancing track 153 to the connecting track 155, the hinge portion 152d rotates, thereby releasing the connection between the connection portion 152a and the tension maintaining unit 151. Therefore, after the connection between the connection portion 152a and the tension maintaining unit 151 is released, the electrode unit 120 and the electrode guide 130 can move separately.

[0095] When the pin 152b moves backward, the stopper 156 can prevent the pin 152b from moving back to the connecting track 155. When the pin 152b is located on the retreat track 154 through the connecting track 155, the stopper 156 can block the connecting track 155.

[0096] Below, refer to Figures 6a to 6i , the driving of the electrode unit 120 based on the electrode driving unit 150 is observed. Figures 6a to 6i Can be with Figures 3a to 3e The state corresponding to the state.

[0097] Figure 6a The electrode driving unit 150 and the electrode guide driving unit 140 may be just before starting to move forward, or just after completing the backward movement. Figure 3a As shown, the electrode unit 120 and the electrode guide 130 may be positioned before surrounding the outer circumference of the tube V in the body, or after surrounding the outer circumference of the tube V and immediately after moving to the position before surrounding. In other words, the electrode unit 120 and the electrode guide 130 may be positioned before or immediately after a nerve removal surgery is performed using the electrode device 100.

[0098] At this time, the force F applied to the protrusion 151b in the advancing direction A can be expressed by the following mathematical formula 1.

[0099] <Mathematical formula 1>

[0100] F=kX0=0=F0

[0101] In formula 1, k is the spring coefficient and X is the spring extension length, which can be expressed as X0, X1 and X 2。 That is, the force F0 applied to the protrusion 151b may be in a state of “0”.

[0102] Therefore, the distance between one side of electrode connecting portion 151d and protruding portion 151b, when the length of spring portion 151a remains unchanged, can be, for example, "D0." Furthermore, the distance between force sensor 151c3 and one side 151c21 of actuator 152c2 also remains unchanged, and can be, for example, "L1." Furthermore, the force F measured by force sensor 151c3 can also be "0."

[0103] Reference Figure 6b The electrode driving unit 150 can move forward along the path provided by the forward track 153 together with the electrode guide driving unit 140 that moves forward. Figure 3b as well as Figure 3c As shown, the electrode unit 120 and the electrode guide 130 can be pulled out from the shaft 111 toward the front F and deformed into a wound state so as to surround the outer circumference of the tube V inside.

[0104] Specifically, when the electrode guide driving unit 140 is driven forward by the motor portion 142 , the tension maintaining unit 151 is also moved forward by the moving portion 152 .

[0105] That is, as the electrode guide driving unit 140 moves forward, the pin 152b of the moving portion 152 connected to the electrode guide driving unit 140 can move forward along the forward track 153. At this time, the electrode guide 130 is pulled out from the shaft 111 toward the front F, and the tension maintaining unit 151 connected to the moving portion 152 moves forward, so that the electrode unit 120, one end of which is connected to the electrode connecting portion 151d, can also be pulled out from the shaft 111.

[0106] At this time, when the force F0 applied to the protrusion 151b in the forward direction A is "0," the distance between one side of the electrode connection portion 151d and the protrusion 151b can be "D0" if the length of the spring portion 151a remains unchanged, and the distance between the force sensor 151c3 and one side 151c21 of the actuator 152c2 can be "L1" if the distance remains unchanged. The force F measured by the force sensor 151c3 can also be "0."

[0107] Reference Figure 6c When the electrode lead driving unit 140 completes the forward movement, the hinge portion 152 d rotates as the pin 152 d of the moving portion 152 moves along the connecting track 155 , thereby releasing the connection between the connecting portion 152 a and the tension maintaining unit 151 .

[0108] As the pin 152b of the moving portion 152 moves together with the electrode guide driving unit 140 to the end of the path provided by the advancing rail 153, as shown in FIG. Figure 3c As shown, the electrode unit 120 and the electrode guide 130 can be wound together to be close to the tube V in the body. At this time, the electrode guide 130 can be in a state where the plurality of joints 131 are completely pulled out along the curved winding path.

[0109] At this time, when the force F0 applied to the protrusion 151b in the forward direction A is "0," the distance between the side of the electrode connecting portion 151d and the protrusion 151b can be "D0" if the length of the spring portion 151a remains unchanged. The distance between the force sensor 151c3 and the side 151c21 of the actuator 152c2 can also be "L1" if the distance remains unchanged. The force F measured by the force sensor 151c3 can also be "0."

[0110] On the other hand, as the connection between the moving portion 152 and the tension maintaining unit 151 is released, the distance between the rod block 143 of the electrode lead driving unit 140 and the other side of the electrode connecting portion 151 d may be extended to “ D1 ”.

[0111] Reference Figure 6d and Figure 6e After the connection between the tension holding unit 151 and the moving part 152 is released, the protruding part 151b can be moved backward by the connecting rod 151c1 of the rod part 151c. Figure 6dAs the connection between the tension maintaining unit 151 and the moving unit 152 is released, the tension maintaining unit 151 can continue to retreat. Therefore, the distance between the rod block 143 of the electrode guide driving unit 140 and the other side of the electrode connecting portion 151d can be further extended to "D2." Here, the extended distance "D2" can be inversely proportional to the diameter of the tube V in contact with the electrode unit 120. At this time, when the force F0 applied to the protrusion 151b in the forward direction A is "0," the distance between one side of the electrode connecting portion 151d and the protrusion 151b can be "D0" if the length of the spring portion 151a remains unchanged. The distance between the force sensor 151c3 and the one side 151c21 of the actuator 152c2 remains unchanged and can also be "L1." The force F measured by the force sensor 151c3 can also be "0."

[0112] By extending the distance "D2", e.g. Figure 3d As shown, in a state where the length of the spring portion 151 a does not change, the electrode unit 120 can contact the tube V in the body.

[0113] Reference Figure 6e The connecting rod 151c1 drives the protruding portion 151b to retreat by the rod portion 151c, which can increase the length of the spring portion 151a by a certain distance X. t。

[0114] Specifically, the rod 151c can use the actuator 151c2 to drive the connecting rod 151c1 in the backward direction. For example, the distance between the force sensor 151c3 and the side 151c21 of the actuator 152c2 can be shortened to "L t ”.

[0115] As the connecting rod 151c1 moves in the backward direction through the driving of the actuator 152c2, the protrusion 151b can also move in the backward direction, and the length of the spring portion 151a connected to the protrusion 151b can increase by a certain distance X. t .

[0116] That is, Figure 6e As shown, after the connection between the tension holding unit 151 and the moving portion 152 is released, as the protruding portion 151b moves backward through the connecting rod 151c1, referring to Figure 6e , the length of the spring portion 151a can be increased by a certain distance X t ,like Figure 3d As shown, tension can be applied to the electrode unit 120 so that the electrode unit 120 is in close contact with the tube V in the body at a certain tension.

[0117] At this time, the force F applied to the protrusion 151b in the advancing direction A can be expressed by the following mathematical formula 2.

[0118] <Mathematical formula 2>

[0119] F T =kX t

[0120] Referring to Mathematical Formula 2, the force F measured by the force sensor 151c3 can be the length of the spring portion 151a increased by a certain distance X t The resulting tension F T .

[0121] Also, the distance between one side of the electrode connecting portion 151d and the protruding portion 151b may be “D T =D0+X t ”.

[0122] The electrode unit 120 , which is in close contact with the tube V in the body with a certain tension, transmits energy for damaging the nerve, thereby enabling nerve resection surgery.

[0123] Afterwards, refer to Figure 6f As the link 151c1 of the rod portion 151c returns to its original position, the state of the spring portion 151a can be restored.

[0124] Specifically, as the lever 151c is operated, the link 151c1 returns to its original position, and the protrusion 151b also returns to its original position, so that the length of the spring portion 151a can be reduced again by a certain distance D2→D1. The actuator 151c2 can move the link 151c1 in the forward direction A.

[0125] Therefore, the tension generated in the spring portion 151a is completely reduced, as shown in FIG. Figure 3c As shown, the electrode unit 120 , which is separated from the electrode guide 130 and closely attached to the tube V in the body, can be attached to the electrode guide 130 again.

[0126] At this time, the force F0 applied to the protrusion 151b in the forward direction A is "0", the distance between one side of the electrode connecting portion 151d and the protrusion 151b can be "D0" when the length of the spring portion 151a does not change, and the distance between the force sensor 151c3 and one side 151c21 of the actuator 152c2 can also be "L1" when it does not change.

[0127] Reference Figure 6g and Figure 6h When the protrusion 151b returns to its original position together with the connecting rod 151c1, the moving portion 152 can move backward. The moving portion 152 can move backward along the backward track 154 together with the electrode guide driving unit 140, so that Figure 3eAs shown, the electrode lead 130 is separated from the outer periphery of the tube V in the body.

[0128] Specifically, as the electrode guide driving unit 140 moves backward, the pin 152b of the moving portion 152 connected to the electrode guide driving unit 140 can move backward along the backward track 154, and the other side of the connecting portion 152a meets the electrode connecting portion 151d of the tension maintaining unit 151, causing the tension maintaining unit 151 to move backward.

[0129] When the pin 152b moves backward, the electrode driving unit 150 may block the connection track 155 through the stopper 156 to prevent the pin 152b from moving back to the connection track 155. For example, the stopper 156 may include a spring for compressing the stopper 156 so that the pin 152b can move to the connection track 155, and restoring the state of the stopper 156 when the pin 152b is located on the retreat track 154.

[0130] As the electrode guide driving unit 140 and the electrode driving unit 150 move backward, Figure 3e As shown, the electrode unit 120 and the electrode guide 130 can move backward B toward the axis 111.

[0131] When the backward movement of the electrode guide driving unit 140 and the electrode driving unit 150 is completed, as shown in FIG. Figure 6i As shown, the pin 152b of the moving portion 152 may be in a state of being set on the forward track 153, that is, in a standby state. Figure 3a As shown, the electrode unit 120 and the electrode guide 130 may also be in a standby state before being pulled out from the standby shaft 111 .

[0132] Reference Figure 7 Even after the electrode unit 120 is in close contact with the tube V, the rod portion 151c can still automatically adjust the forward or backward drive of the electrode unit 120, so that the electrode unit 120 is in close contact with the tube V in the body with a certain tension, and the degree of the certain tension can be arbitrarily adjusted according to the diameter, elasticity, etc. of the tube V.

[0133] first, Figure 7 (b) shows a case where the protrusion 151b retreats via the rod 151c after the tension holding unit 151 is disconnected from the moving portion 152. At this time, the rod 151c can detect the tension or restoring force of the spring portion 151a via the force sensor 151c3.

[0134] Figure 7 (a) means Figure 7 The restoring force F1 of the spring portion 151a detected by the force sensor 151c3 in (b) is greater than the tension F generated by the extension of the length of the spring portion 151a.T In this case, the rod portion 151c can drive the link 151c1 in the backward direction B via the actuator 151c2.

[0135] That is, the rod portion 151c moves the link 151c1 in the backward direction B, thereby moving the protruding portion 151b in the backward direction. As the protruding portion 151b moves in the backward direction, the tension of the spring portion 151a is increased.

[0136] on the other hand, Figure 7 (c) indicates Figure 7 The restoring force F1 of the spring portion 151a detected by the force sensor 151c3 in (b) is greater than the tension F generated by the extension of the length of the spring portion 151a. T In this case, the rod portion 151c can drive the link 151c1 in the forward direction B via the actuator 151c2.

[0137] That is, the rod portion 151c can move the protrusion 151b in the forward direction by moving the link 151c1 in the forward direction A. As the protrusion 151b moves in the forward direction, the tension of the spring portion 151a can be reduced.

[0138] like Figure 7 As shown in (a), (b) and (c), the present invention controls the rod portion 151c according to the force detected by the force sensor 151c3, the tension or restoring force of the spring portion 151a, so that the electrode unit 120 is tightly attached to the tube V with a certain tension, and the certain tension can be arbitrarily adjusted according to the diameter, elasticity, etc. of the tube V.

[0139] As a result, the electrode unit 120 is brought into close contact with the tube V in the body accurately and safely, and a nerve resection surgery can be performed.

[0140] The above description of the present invention is for illustrative purposes only. Those skilled in the art will appreciate that other specific embodiments can be readily adapted without altering the technical principles or essential features of the present invention. Therefore, it should be understood that the above embodiments are illustrative and non-restrictive in all respects. For example, components described as being separate can be implemented in a dispersed manner, and similarly, components described as being dispersed can also be implemented in a combined manner.

[0141] The scope of the present invention will be indicated by the following claims rather than the detailed description above, and all modifications or changes derived from the meaning and scope of the claims and their equivalents should be understood to be included in the scope of the present invention.

Claims

1. An electrode device for blocking or adjusting nerves in the body, characterized in that: include: A main body, having an axis; An electrode unit is formed by pulling out from one end of the shaft and blocks or adjusts at least a portion of the nerves of the tube in the body; an electrode guide, coupled to a distal end of the electrode unit and guiding the electrode unit to contact the tube in the body; An electrode guide driving unit configured to move the electrode guide forward and backward; as well as an electrode driving unit configured to move the electrode unit forward and backward in conjunction with the electrode guide driving unit, The electrode driving unit comprises: A tension holding unit connected to one end of the electrode unit; as well as a moving part connected to the tension holding unit and causing the tension holding unit to move forward and backward, The tension holding unit includes a rod portion, and the rod portion provides tension to the electrode unit. The rod portion detects tension using a sensor and is automatically driven in a front-rear direction according to the detected tension.

2. The electrode device according to claim 1, characterized in that The tension maintaining unit further includes a spring portion for generating the tension. The rod portion pulls the spring portion to generate the tension, and provides the generated tension to the electrode unit.

3. The electrode device according to claim 2, characterized in that In a state where the moving portion is connected to the tension maintaining unit, the tension maintaining unit is advanced until the electrode guide surrounds the outer circumference of the tube in the body, and then the connection between the moving portion and the tension maintaining unit is released.

4. The electrode device according to claim 3, characterized in that The tension maintaining unit further includes a protrusion protruding at one side, The rod portion comprises: a connecting rod for causing the protruding portion to retreat in order to generate tension of the spring portion; a force sensor formed on an inner side surface of the link in contact with the protrusion, and detecting tension generated in the spring portion; and The actuator drives the link in the front-rear direction according to the detected tension of the spring portion.

5. The electrode device according to claim 4, characterized in that When the restoring force of the spring portion detected by the force sensor is smaller than the tension, the actuator drives the link in a backward direction, and when the restoring force of the spring portion detected by the force sensor is larger than the tension, the actuator drives the link in a forward direction.

6. The electrode device according to claim 4, characterized in that The protrusion is retracted by the link so that the electrode unit comes into contact with the tube.

7. The electrode device according to claim 3, characterized in that The mobile unit also includes: a connecting portion, used to connect to the tension maintaining unit; and a pin formed on the connecting portion, used for the moving portion to advance the tension holding unit, The electrode driving unit further includes a forward track, and the forward track is used for the pin to move forward.

8. The electrode device according to claim 7, characterized in that The electrode driving unit further includes a retreat rail for retreating the pin after the connection between the moving portion and the tension maintaining unit is released, thereby detaching the electrode lead from the outer periphery of the tube in the body.

9. The electrode device according to claim 8, characterized in that The mobile unit also includes: a supporting portion connected to the electrode guide driving unit; and A hinge portion allows the connection portion to rotate, The electrode driving unit further includes a connecting track, wherein the connecting track connects the forward track and the backward track. When the pin moves along the connecting track, the hinge portion rotates so that the connection between the connecting portion and the tension maintaining unit is released.

10. The electrode device according to claim 9, characterized in that The electrode driving unit further includes a stopper, which blocks the connection track when the pin passes through the connection track and is located on the retreat track in order to prevent the pin from moving back to the connection track when the pin moves backward.

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