WO2018038562A1 - 신경차단용 카테터 - Google Patents
신경차단용 카테터 Download PDFInfo
- Publication number
- WO2018038562A1 WO2018038562A1 PCT/KR2017/009283 KR2017009283W WO2018038562A1 WO 2018038562 A1 WO2018038562 A1 WO 2018038562A1 KR 2017009283 W KR2017009283 W KR 2017009283W WO 2018038562 A1 WO2018038562 A1 WO 2018038562A1
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- WO
- WIPO (PCT)
- Prior art keywords
- catheter
- tube
- hollow
- support member
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
Definitions
- the present invention relates to a catheter, more specifically a medical catheter for the treatment of a disease, in particular a nerve blocking catheter for ablation of a part of the nerve and nerve conduction can be inactivated and nerve block including the same Relates to a device.
- Nerve block is a method of blocking a part of nerve pathways so that stimulation or information is not transmitted to various nerves such as perceptual nerve or autonomic nerve.
- nerve block surgery is increasingly used for the treatment of various diseases including arrhythmias, pain relief, plastic surgery, and the like.
- hypertensive patients have been treated with hypertension depending on the drug.
- the method of lowering blood pressure by the drug has a number of problems, such as the inconvenience of continuing to take the drug, the cost, and side effects such as long-term damage due to long-term use of the drug.
- some hypertensive patients suffer from refractory hypertension, which is not controlled as a drug. Since such refractory hypertension is not treated with drugs, the risk of causing an accident such as stroke, arrhythmia, kidney disease, etc. to the patient is high, and the treatment of refractory hypertension is very serious and urgent.
- nerve block surgery is attracting attention as a breakthrough method for treating hypertension.
- nerve block surgery for treating hypertension may be performed in such a way that nerve conduction is inactivated by ablation of the renal nerves, sympathetic nerves around the renal arteries, thereby blocking the renal nerves.
- Activation of the renal nerve increases the production of the renin hormone by the kidneys, which can lead to an increase in blood pressure. Therefore, the nerve conduction may not be performed when blocking the renal nerve, it has been demonstrated in recent experiments that can be treated for hypertension.
- a typical method of blocking renal nerves for the treatment of hypertension is using a catheter.
- Catheter nerve block surgery involves the use of RF (Radio Frequency) energy at the distal end of the catheter, with the catheter inserted into a part of the body, such as the thigh, and the distal end of the catheter positioned in the renal artery along the vessel. This can be done in a manner that blocks the sympathetic nerves around the renal artery.
- RF Radio Frequency
- catheter-based nerve block surgery involves incision of much smaller areas than open block surgery, potential complications and side effects can be greatly reduced, and treatment and recovery time due to partial anesthesia is very short. It is attracting attention as a method of treating hypertension.
- the catheter should be small enough to be able to move freely along the inside of the blood vessel.
- the catheter should be small enough to be able to move freely along the inside of the blood vessel.
- the head portion of the conventionally developed or proposed catheter is provided with one or more electrodes and various devices for sensing, and also includes various wires for transmitting power or electrical signals to the electrodes and sensing devices. Therefore, it is a very difficult task in the prior art to manufacture a catheter having all of these and having a small size.
- the head portion when the distal end of the catheter reaches the site of treatment, the head portion is expanded so that the electrode is close to the inner wall of the vessel.
- a separate operation wire may be provided long from the distal end to the proximal end of the catheter.
- the internal structure of the catheter can be more complicated and larger in size due to this wire, which can add difficulty to the miniaturization of the catheter.
- the operation wire is often composed of a metal material, the operation wire of the metal material is exposed to the outside in the head portion to contact with blood, various problems may occur.
- the present invention has been made to solve the above problems, and an object thereof is to provide a catheter with a simplified structure and easy to miniaturize.
- the catheter according to the present invention for achieving the above object is a catheter extending in one direction and having a proximal end and a distal end, located on the distal end side of the catheter, the first hollow in the form that both ends are open
- a formed first support member A second support member positioned on a proximal end side of the catheter rather than the first support member, and having a second hollow formed in an open shape at both ends thereof;
- a third hollow is formed to extend in one direction, and both ends of the longitudinal direction are open, the third hollow is inserted into the first hollow and the second hollow, and is fixed to the first support member or the second support member.
- a driving tube configured to move the first support member or the second support member in a longitudinal direction; One end is connected to the first support member, the other end is connected to the second support member, at least a portion is bent when the distance between the first support member and the second support member is narrowed so that the bending portion is One or more connecting members configured to be remote from the central axis of the third hollow; One or more electrodes provided on the connection member to generate heat; And a fourth hollow formed at a proximal end side of the catheter rather than the second support member and extending in one direction, and having both ends of the longitudinal direction open so that the driving tube is inserted and movable in the longitudinal direction. It may include a shaft body.
- the catheter according to the present invention is configured to extend in one direction, the guide wire is inserted into the third hollow through the opening of both ends of the drive tube further configured to be movable in the longitudinal direction inside the third hollow. It may include.
- the driving tube may be fixed to the first support member and configured to be movable in the longitudinal direction in the second hollow.
- the drive tube, the inner tube extending in one direction and the third hollow is formed
- the mesh tube is configured in the form of a mesh and configured to surround the outer surface of the inner tube, and extending in one direction and the inner tube and An outer tube configured to surround the outer surface of the mesh tube may be provided.
- the driving tube may include an outer tube extending in one direction and formed with the third hollow, and a coil tube configured to surround an inner surface of the outer tube.
- the shaft body may extend in one direction and have an inner body in which the fourth hollow is formed, a mesh body configured to enclose an outer surface of the inner body, and extend in one direction and may extend in one direction. It may have an outer body configured to surround the outer surface of the mesh body.
- the catheter according to the present invention by being electrically connected to the electrode may further include a power supply line for providing a power supply path for the electrode.
- the shaft body there is further formed a fifth hollow in the longitudinal direction separately from the fourth hollow, the power supply line is inserted into the fifth hollow is configured to be movable in the longitudinal direction, the catheter From the proximal end of to the electrode.
- the fifth hollow may be provided at an outer side of the fourth hollow and be bent along the outer edge of the fourth hollow.
- the shaft body is configured such that the central axis of the fourth hollow coincides with the central axis of the catheter, and the power supply line is included in plural, so as to be spaced apart from each other by a predetermined angle with respect to the central axis of the fourth hollow. It may be configured to be placed.
- the power supply line may be inserted between the inner surface and the outer surface of the shaft body may be configured to be fixed to the shaft body.
- the power supply line may be inserted between the inner surface and the outer surface of the drive tube may be configured to be fixed to the drive tube.
- the catheter according to the present invention may further include a heat shrink film formed in a heat-shrinkable form to surround the outside of the power supply line and the drive tube. .
- the catheter according to the present invention is configured to extend in one direction, the distal end is fixed to the distal end of the shaft body, the proximal end is exposed outward from the proximal end of the shaft body, It may further include a deflection wire configured to be movable in the longitudinal direction therein.
- the nerve block device according to the present invention for achieving the above object includes a catheter according to the present invention.
- a medical catheter particularly a catheter effective for nerve block surgery.
- the head portion of the catheter can be opened / closed using a tube member for passing the guide wire.
- the structure of the catheter can be simplified and the volume can be reduced.
- the operation member of the metallic material is not exposed on the blood side, various problems due to this can be prevented.
- the catheter head portion may be flexible, since the wire-type actuating member does not have to be provided with a metal material.
- FIG. 1 is a perspective view schematically showing a distal end side configuration of a catheter according to an embodiment of the present invention.
- FIG. 2 is a perspective view schematically showing a configuration of a first support member according to an embodiment of the present invention.
- FIG 3 is a perspective view schematically showing a distal end side configuration of a drive tube according to an embodiment of the present invention.
- FIGS. 4 and 5 are front views schematically showing a configuration in which the first support member is moved due to the movement of the drive tube according to an embodiment of the present invention.
- FIG. 6 is a perspective view schematically showing an internal configuration of a drive tube according to an embodiment of the present invention.
- FIG. 7 is a perspective view schematically showing the configuration of a drive tube according to another embodiment of the present invention.
- FIG. 8 is a perspective view schematically showing the configuration of a drive tube according to another embodiment of the present invention.
- FIG. 9 is a perspective view schematically showing the configuration of a shaft body in which a drive tube is inserted into an inner hollow according to an embodiment of the present invention.
- FIG. 10 is a cross-sectional view taken along line B1-B1 'of FIG. 9.
- FIG. 11 is a perspective view schematically showing the structure of a catheter according to another embodiment of the present invention.
- FIG. 12 is a cross-sectional view taken along line B2-B2 'of FIG.
- FIG. 13 and 14 are diagrams schematically showing a configuration in which a power supply line according to an embodiment of the present invention is embedded in a shaft body.
- 15 is a perspective view schematically showing the configuration of a catheter according to another embodiment of the present invention.
- FIG. 16 is a cross-sectional view taken along line B3-B3 'of FIG. 15.
- 17 and 18 are views schematically showing a configuration in which a power supply line according to an embodiment of the present invention is embedded in a drive tube.
- FIG. 19 is a diagram schematically showing a configuration in which a power supply line according to another embodiment of the present invention is provided on the outside of the drive tube.
- FIG. 20 is a diagram schematically showing one embodiment of a catheter to which the configuration of FIG. 19 is applied.
- FIG. 1 is a perspective view schematically showing a distal end side configuration of a catheter according to an embodiment of the present invention.
- the distal end of the catheter can be said to mean the end of the side of the catheter in the longitudinal direction to reach the treatment site. That is, the catheter may have both ends in a form extending in one direction and may be configured to move along an inner space such as a blood vessel.
- the end of the catheter located on the operator's side is called the proximal end
- the end of the side that is located on the opposite side of the proximal end and reaches the treatment site at the foremost front is called the distal end.
- the operator may be located on the proximal end side of the catheter to adjust the movement of the distal end of the catheter.
- the distal end of the catheter may also be referred to as the catheter head.
- the catheter not only the catheter itself, but also for the various components included in the catheter, which extend in the longitudinal direction of the catheter and have both ends, an end located on the distal end side of the catheter to distinguish both ends thereof. Is referred to as the distal end and the end located on the proximal end side of the catheter is referred to as the proximal end.
- the catheter according to the present invention includes a first support member 100, a second support member 200, a drive tube 300, a connection member 400, an electrode 500, and a shaft body 600. ) May be included.
- the first support member 100 may be located at the distal end side of the catheter. That is, the first support member 100 may be located at an end portion of the catheter facing toward the treatment site side rather than the operator side. In addition, the first support member 100 may have a hollow formed therein. The configuration of the first support member 100 will be described in more detail with reference to FIG. 2.
- FIG. 2 is a perspective view schematically showing the configuration of the first support member 100 according to an embodiment of the present invention.
- the first support member 100 may be configured in the form of a cylinder having a hollow formed therein, as indicated by V1. And, the hollow is formed along the longitudinal direction of the catheter, it may be configured in the form that both ends are open. That is, in the configuration of FIG. 2, the hollow of the first support member 100 may be formed in an approximately left and right direction, and may have a form in which left and right ends are open. Therefore, a predetermined component can be inserted into this hollow of the first support member 100.
- the hollow formed in the first support member 100 is referred to as a first hollow so as to be compared with the hollow formed in other components.
- the second support member 200 may be located at the proximal end side of the catheter than the first support member 100. That is, the second support member 200 may be located at the distal end side based on the entire portion of the catheter, but may be located at the proximal side of the catheter rather than the first support member 100. For example, as shown in the configuration of FIG. 1, the second support member 200 is spaced apart from the first support member 100 by a predetermined distance, and is located at a proximal side of the catheter than the first support member 100. It may be configured to be located on the right side which can be called.
- the second support member 200 may have a hollow formed therein, like the first support member 100.
- the hollow of the second support member 200 is formed along the longitudinal direction of the catheter, and may be configured to have both ends open.
- the second support member 200 may be configured to be symmetrical in the longitudinal direction of the catheter with respect to the first support member 100 shown in FIG. 2. Therefore, a predetermined component may be inserted into the hollow of the second support member 200.
- the driving tube 300 may be inserted into the hollow of the second support member 200.
- the hollow formed in the second support member 200 is referred to as a second hollow so as to be compared with the hollow formed in the other components.
- the second hollow may also be configured in an open form at both ends.
- the first support member 100 and the second support member 200 may be configured to be spaced apart from each other by a predetermined distance along the longitudinal direction of the catheter. In addition, the distance between the first support member 100 and the second support member 200 may vary. The distance fluctuation structure between them is mentioned later.
- the first support member 100 and / or the second support member 200 may be made of various materials having biocompatibility.
- the support member may be made of a soft material such as metal as well as a soft material such as rubber or plastic.
- such support members are preferably made of a soft and flexible material.
- the first support member 100 is located at the front end of the catheter and is likely to come into contact with the inner wall such as blood vessels when the catheter moves along blood vessels, the first support member 100 is made of a soft and flexible material to prevent damage to blood vessels. It can be prevented and made easy to change direction.
- the drive tube 300 may be configured in the form of a tube, that is, a tube.
- the configuration of the drive tube 300 will be described in more detail with reference to FIG. 3.
- FIG 3 is a perspective view schematically showing a distal end side configuration of the drive tube 300 according to an embodiment of the present invention.
- the drive tube 300 may be configured to extend in one direction.
- the longitudinal direction of the drive tube 300 coincides with the longitudinal direction of the catheter.
- the drive tube 300 may extend from the distal end of the catheter to the proximal end of the catheter.
- the distal end of the drive tube 300 may be located on the surgical site side, and the proximal end of the drive tube 300 may be located on the operator side. Therefore, the operator can operate the proximal end of the drive tube 300 to move the drive tube 300 in the longitudinal direction.
- the drive tube 300 can be formed hollow along the longitudinal direction.
- both ends of the hollow of the driving tube 300 may be opened.
- the driving tube 300 may be formed to extend in a substantially left and right direction and may be configured such that both the left and right ends of the hollow are opened.
- the hollow of the drive tube 300 is referred to as a third hollow to distinguish it from the hollow of other components.
- the driving tube 300 has a hollow formed therein, and both ends of the hollow are configured to be open, so that a predetermined component may be inserted or moved into the driving tube 300.
- the driving tube 300 may be inserted into both the first hollow V1 that is the hollow of the first support member 100 and the second hollow that is the hollow of the second support member 200. That is, the driving tube 300 may be configured such that a portion of the outer surface is surrounded by the first support member 100 and the second support member 200. At this time, since the first support member 100 and the second support member 200 are located at the distal end side of the catheter, the driving tube 300 has a part of the distal end of the first support member 100 and the second support member. It can be said that it is wrapped by the (200).
- the drive tube 300 may be fixed to the first support member 100 or the second support member 200. That is, the driving tube 300 is to be fixed to the first support member 100 or the second support member 200 in a state of being inserted into the hollow of the first support member 100 and the second support member 200, respectively. Can be. Since the driving tube 300 is fixed to the first support member 100 or the second support member 200 in this manner, when the drive tube 300 is moved in the longitudinal direction, the first support member 100 or the second support member is moved. The 200 can be moved in the longitudinal direction. This movement configuration will be described in more detail with reference to FIGS. 4 and 5.
- 4 and 5 are front views schematically showing a configuration in which the first support member 100 is moved due to the movement of the drive tube 300 according to an embodiment of the present invention.
- the first support member 100 and the second support member 200 are spaced apart from each other by a predetermined distance, and the driving tube is hollow in the first support member 100 and the second support member 200. 300 is inserted.
- the driving tube 300 may be configured to freely move in the longitudinal direction, that is, the left and right directions of the drawing in a state inserted into the hollow of the second support member 200.
- the outer diameter of the drive tube 300 may be configured to be slightly smaller than the inner diameter of the second support member 200.
- the drive tube 300 is fixedly coupled to the first support member 100 in a state of being inserted into the hollow of the first support member 100.
- the first support member 100 coupled to the driving tube 300 may be moved in the right direction as shown in FIG. 5. That is, when the operator pulls the proximal end of the driving tube 300, the driving tube 300 moves in the A1 direction. At this time, since the driving tube 300 can freely move the hollow of the second support member 200 in the longitudinal direction, the position of the second support member 200 may not change. However, since the first support member 100 is fixed to the drive tube 300, when the drive tube 300 moves in the A1 direction, the first support member 100 can also move in the A1 direction.
- the driving tube 300 moves in the opposite direction of A1, which causes the first supporting member 100 to move in the opposite direction of A1.
- the distal end side configuration of the catheter may then be changed from the configuration of FIG. 5 to the configuration of FIG. 4.
- the distance between the first supporting member 100 and the second supporting member 200 changes. can do.
- the driving tube 300 moves in the A1 direction in the configuration of FIG. 4, as shown in the configuration of FIG. 5, the distance between the first support member 100 and the second support member 200 is close. Can lose.
- the driving tube 300 moves in the opposite direction to A1 in the configuration of FIG. 4, the distance between the first supporting member 100 and the second supporting member 200 may be increased.
- connection member 400 may be configured to connect them to each other between the first support member 100 and the second support member 200. That is, one end of the connection member 400 may be connected and fixed to the first support member 100, and the other end of the connection member 400 may be connected to the second support member 200.
- the connection member 400 may be configured in the form of a rod or plate extending in one direction.
- connection member 400 When the distance between the first support member 100 and the second support member 200 is narrowed, the connection member 400 may be configured such that at least a portion of the connection member 400 is bent as the distance between both ends is closer. And, this bending portion of the connecting member 400 may be configured to be away from the central axis of the catheter. That is, when the first support member 100 and the second support member 200 are close to each other and the connection member 400 is bent, the bending portion may be configured to be far from the central axis of the driving tube 300.
- the distance between the first support member 100 and the second support member 200 may be adjusted by the drive tube 300. That is, as the driving tube 300 moves in the longitudinal direction, the distance between the first support member 100 and the second support member 200 may vary. Therefore, in the catheter according to the present invention, the connection member 400 may be bent or straightened through the movement of the driving tube 300.
- connection member 400 because the bending portion must be formed in accordance with the movement of the first support member 100 or the second support member 200, which can be bent when the distance between both ends is narrowed It may be made of a material.
- the connection member 400 may be made of a material such as metal or polymer.
- the present invention is not limited to a specific material of the connection member 400, and if the bending portion may be formed in some, the connection member 400 may be formed of various materials.
- connection member 400 may be provided in plurality between the first support member 100 and the second support member 200. For example, as illustrated in FIG. 1, three connection members 400 may be provided. However, the present invention is not limited to the specific number of the connection member 400, the connection member 400 may be configured in various numbers. As such, when a plurality of connection members 400 are provided, at least a portion of each connection member 400 is bent when the distance between the first support member 100 and the second support member 200 is close to each other. The bending portion may be configured in a direction away from the central axis of the drive tube 300.
- the electrode 500 is mounted to the connection member 400 and may receive heat to generate heat.
- the heat generated by the electrode 500 may apply thermal stimulation to surrounding tissues.
- heat generated by the electrode 500 can ablate the surrounding tissue.
- the electrode 500 may generate a heat of approximately 40 ⁇ 80 °C to ablate the nerve around the blood vessel, thereby blocking the nerve.
- the temperature of the heat generated by the electrode 500 may be variously implemented according to the purpose or purpose of the catheter.
- the electrode 500 may be in contact with the blood vessel wall and apply heat to nerve tissues located around the blood vessel, so that the electrode 500 may be in close contact with the blood vessel wall. Therefore, the electrode 500 may be formed in a curved shape so that the surface contacting the inner wall of the blood vessel may correspond to the shape of the inner wall.
- the electrode 500 may have a cross section in the form of a circle, a semicircle, or an ellipse.
- the electrode 500 may be provided at a bending portion of the connection member 400.
- the bending part of the connection member 400 may be configured to be farthest from the central axis of the catheter as the distance between the first support member 100 and the second support member 200 changes. Therefore, when the electrode 500 is provided at the bending portion of the connection member 400, the electrode 500 may be located closest to the inner wall of the blood vessel.
- the catheter head is open.
- the catheter head is closed.
- the electrode 500 may be made of a material such as platinum or stainless steel, but the present invention is not limited to a specific material of the electrode 500, and considering various factors such as a heat generation method or a treatment site. It can be made of various materials.
- the electrode 500 may generate heat in a radio frequency (RF) manner.
- the electrode 500 may be electrically connected to the high frequency generating unit to emit nerves by emitting high frequency energy.
- RF radio frequency
- the electrode 500 existing in the catheter may act as a cathode, and the anode corresponding to the cathode may be connected to an energy supply unit such as a high frequency generating unit, similar to the cathode, and may be specified in the form of a patch. May be attached to the site.
- an energy supply unit such as a high frequency generating unit, similar to the cathode, and may be specified in the form of a patch. May be attached to the site.
- Two or more electrodes 500 may be included in the catheter.
- the electrodes 500 may be provided for each connecting member 400.
- the catheter according to the present invention includes three connecting members 400 and three electrodes 500, so that each electrode of each connecting member 400 has one electrode ( 500 may be configured to be mounted.
- the shaft body 600 may be configured to extend in one direction.
- the shaft body 600 may be configured to extend in a substantially left and right direction.
- the shaft body 600 may be configured to extend from the distal end of the catheter in which the first support member 100 and the second support member 200 are positioned to the proximal end point of the catheter in which the operator is located. Can be.
- the shaft body 600 may be located at the proximal end side of the catheter than the second support member 200.
- the shaft body 600 may be located on the right side of the second support member 200, as shown in FIG. 1.
- the shaft body 600 may be configured to be in contact with the second support member 200. That is, in the configuration of FIG. 1, the left end (distal end) of the shaft body 600 may be configured to be in contact with the right end (proximal end) of the second support member 200.
- the shaft body 600 and the second support member 200 may be fixed in contact with each other. In this case, the space between the second support member 200 and the shaft body 600 may not be exposed. Therefore, it is possible to prevent blood or foreign matter from penetrating into the hollow of the second support member 200 or the outer surface of the driving tube 300.
- the shaft body 600 may be hollow in the longitudinal direction.
- the shaft body 600 in the configuration of FIG. 1, may be hollow in the left and right directions in the inner space.
- the hollow formed in the shaft body 600 is referred to as a fourth hollow so as to be compared with the hollow formed in the other components.
- the fourth hollow may be open at both ends in the longitudinal direction.
- the fourth hollow may also be formed to be elongated in the left and right directions, and the left and right ends of the fourth hollow may be configured to be open. have.
- the drive tube 300 may be inserted into the fourth hollow and movable in the longitudinal direction. That is, when an operator (operator) grabs the proximal end of the drive tube 300 and moves in the longitudinal direction, the drive tube 300 can freely move in the longitudinal direction while being inserted into the fourth hollow.
- At least a portion between the outer surface of the driving tube 300 and the surface of the fourth hollow may be configured to be spaced a predetermined distance apart. That is, the diameter of the fourth hollow may be configured to be somewhat larger than the outer diameter of the drive tube 300.
- the shaft body 600 occupies most of the entire length of the catheter and may be located outside the catheter. In addition, many portions of the shaft body 600 may be located inside the blood vessel. Therefore, the shaft body 600 may be made of a material that is biocompatible, flexible and flexible to be easily moved within the blood vessel and bent according to the shape of the blood vessel.
- the catheter according to the present invention may further include a guide wire 700.
- the guide wire 700 is a wire for guiding the catheter to the surgical site, and may be configured to reach the surgical site prior to the catheter.
- the guide wire 700 may be configured to extend in one direction.
- the guide wire 700 may be inserted into the hollow of the driving tube 300. That is, the guide wire 700 is inserted into the third hollow V3 through the openings at both ends of the driving tube 300, and may be configured to be movable in the longitudinal direction in the third hollow V3.
- the guide wire 700 may have a wire shape, and may be configured to be considerably smaller in diameter than the driving tube 300 or the like. Therefore, the guide wire 700 can be moved freely in the longitudinal direction in the hollow interior of the drive tube (300).
- the guide wire 700 is moved along the inside of the vessel to reach the treatment site first, the drive tube 300, the first support member 100, the second support member 200, the connection member 400 ), Etc., can be moved to the procedure site in the state in which the guide wire 700 is inserted into the hollow.
- the drive tube 300 may be a component for passing the guide wire 700.
- the drive tube 300 may also be used to open or close the catheter head, as described above.
- the component passing through the guide wire 700 may be a component for adjusting the open / close of the catheter head. Therefore, in addition to the drive tube 300 for moving the catheter through the guide wire 700, there is no need for a separate actuating member for opening / closing the catheter head.
- some conventional catheters require a separate actuating member in the form of a wire, apart from the components for passing the guide wire 700, in order to open / close the catheter head.
- the diameter of the catheter is inevitably increased.
- the component for passing the guide wire 700 can open / close the catheter head, the diameter of the catheter can be reduced.
- the shaft body 600 only a space in which the driving tube 300 can be moved is provided, and a space for allowing a separate operation member to be moved does not need to be separately provided, and thus, the shaft body ( 600) can be made smaller.
- the catheter since there is no operating member of the metal material for the open / close of the catheter head or is not exposed to the outside, problems due to corrosion or the like may not occur.
- the operation member of the conventional metal since the operation member of the conventional metal is not provided, the catheter, in particular, the head portion of the catheter may be more flexible.
- the drive tube 300 is fixed to the first support member 100, can be configured to be movable in the longitudinal direction inside the second hollow. have.
- the drive tube 300 can be configured so as not to protrude to the distal side than the first support member (100).
- the driving tube 300 may move in the A1 direction to open the catheter head, and the driving tube 300 may move in the opposite direction of A1 to close the catheter head.
- the first support member 100 since the distal end of the drive tube 300 is fixed to the first support member 100, the first support member 100 also moves together with the movement of the drive tube 300, and the The distal end may be configured not to protrude to the left of the first support member 100. Therefore, in the process of manipulating the drive tube 300 for opening or closing the catheter head, the protruding end of the drive tube 300 can be prevented from damaging blood vessels and the like.
- the coupling state of the second support member 200 and the shaft body 600 can be stably maintained.
- the driving tube 300 can move freely while being inserted into the hollow of the second support member 200, even if the driving tube 300 is moved in the left and right directions, The position of the support member 200 may not be changed. Therefore, the mutual position of the second support member 200 and the shaft body 600 can be stably maintained.
- the drive tube 300 may be configured to have an inner tube, a mesh tube and an outer tube 330. This configuration will be described in more detail with reference to FIG. 6.
- FIG. 6 is a perspective view schematically showing an internal configuration of a drive tube 300 according to an embodiment of the present invention.
- portions of the distal ends of the mesh tube 320 and the outer tube 330 are shown removed so that each component is easily visible.
- the driving tube 300 may be configured in a triple structure having three layers of an inner tube 310, a mesh tube 320, and an outer tube 330.
- the inner tube 310 constitutes an inner layer of the drive tube 300, and the hollow may be formed in the longitudinal direction. That is, the driving tube 300 may extend in one direction and may be configured in the form of a tube in which a hollow is formed. In this case, since the hollow formed in the inner tube 310 may be referred to as a hollow formed in the driving tube 300, the hollow of the inner tube 310 may be a third hollow.
- the inner tube 310 may be made of a polymer material.
- the mesh tube 320 may be configured to surround the outer surface of the inner tube 310. Moreover, the mesh tube 320 may be configured to extend in a length form from the distal end to the proximal end of the inner tube 310. In particular, the mesh tube 320 may be configured in a mesh form, that is, a mesh form. For example, the mesh tube 320 may be formed in a woven form using a plurality of wires, that is, a woven form.
- the mesh tube 320 may be made of a material that reinforces the rigidity of the inner tube 310.
- the mesh tube 320 may be made of a material having a higher rigidity than the inner tube 310.
- the mesh tube 320 may be made of a metal material.
- the mesh tube 320 may be made of stainless steel.
- the outer tube 330 like the inner tube 310 may be configured to extend in one direction.
- the outer tube 330 may be configured to surround the outer surfaces of the inner tube 310 and the mesh tube 320.
- the outer tube 330 may be made of the same or different material, such as a polymer material, the inner tube 310.
- the outer tube 330 may be made of a material such as polytetrafluoroethylene (PTFE), poly ether block amides (Pebax), or the like.
- PTFE polytetrafluoroethylene
- Pebax poly ether block amides
- the outer tube 330 may be configured to cover the outside of the mesh tube 320 so that the mesh tube 320 is not exposed to the outside.
- the outer tube 330 may allow the mesh tube 320 together with the inner tube 310 to be embedded in the driving tube 300 without being exposed to the outside.
- the rigidity of the drive tube 300 is reinforced, it is possible to facilitate the open / close operation of the catheter head by the drive tube (300). That is, in the case of the present invention, the first support member 100 or the second support member 200 is moved by moving the drive tube 300 in the longitudinal direction, for this purpose, the drive tube 300 is a predetermined level or more force It should not be bent or pressed easily in the longitudinal direction.
- the drive tube 300 may be reinforced with rigidity and may receive a force higher than a predetermined level.
- the mesh tube 320 may be configured such that a plurality of mesh rings are disposed along the longitudinal direction of the inner tube 310 at the outer surface of the inner tube 310. This will be described in more detail with reference to FIG. 7.
- FIG. 7 is a perspective view schematically showing the configuration of a drive tube 300 according to another embodiment of the present invention. Also in FIG. 7, portions of the distal ends of the mesh tube 320 and the outer tube 330 are shown removed so that each component is easily visible.
- the driving tube 300 includes an inner tube 310, a mesh tube 320, and an outer tube 330, wherein the mesh tube 320 is represented by R.
- the mesh tube 320 may be configured in the form having a plurality of unit rings.
- the plurality of unit rings respectively, may be configured in the form of a mesh woven wire or string, at least a portion may be configured in a form that can be separated from each other.
- the mesh tube 320 is made of stainless steel, and the metal ring-shaped member surrounds the outer surface of the inner tube 310, from the distal end to the proximal end of the driving tube 300. Multiple dogs may be arranged in succession.
- the mesh tube 320 is configured in the form of a plurality of unit rings that can be separated from each other, it is possible to easily bend the drive tube 300 as necessary. That is, since the catheter moves along the blood vessel, it may need to be bent according to the bending form of the blood vessel. Therefore, in the case of the embodiment consisting of a plurality of mesh rings, while being well received in the longitudinal direction, it is possible to make the bending of the drive tube 300 occurs by changing the distance between the mesh rings.
- the distal ends of the inner tube 310 and the outer tube 330 are fused to each other. It may be configured in the form.
- the mesh tube 320 is made of a metal material
- the inner tube 310 and the outer tube 330 are both made of a polymer material
- the distal end of the inner tube 310 and the outer tube 330 The distal end may be configured in a form that is melt melt bonded to each other by heat treatment.
- FIG. 8 is a perspective view schematically showing the configuration of a drive tube 300 according to another embodiment of the present invention. Also in FIG. 8, the distal ends of some components are shown in some removed form in order to provide visibility for each component.
- the driving tube 300 may include an outer tube 330 and a coil tube 340.
- the outer tube 330 may be formed in a pipe shape in which a third hollow is formed to extend in one direction and extend in the longitudinal direction of the catheter.
- the outer tube 330 may be equally or similarly applied to the outer tube described in the foregoing embodiment.
- the coil tube 340 may be configured to surround the inner surface of the outer tube 330.
- the coil tube 340 may be configured in the form of a spiral wound around the inner surface of the outer tube 330, that is, in the form of a coil.
- the distal end of the coil tube 340 is shown pulled to the distal side to more clearly show the coil shape.
- the coil tube 340 may be configured to be wound in a length form from the distal end to the proximal end of the outer tube 330.
- the coil tube 340 is configured in the form of a wire having a circular or oval cross section perpendicular to the longitudinal direction, one end of which is located at the distal end of the outer tube 330, and the other end of the coil tube 340 is proximal end of the outer tube 330. It may be configured to extend along the longitudinal direction of the catheter to be located in. Alternatively, the coil tube 340 may be configured in a plate shape that is thinner than the width, and a plate shape that is remarkably thin in width compared to the length, and is close to the wire shape.
- the coil tube 340 may be made of a material that reinforces the rigidity of the driving tube 300, in particular, the outer tube 330. That is, the coil tube 340 may be made of a material having a higher rigidity than the outer tube 330. For example, when the outer tube 330 is made of a polymer material, the coil tube 340 may be made of a metal material, for example, stainless steel material.
- the rigidity of the driving tube 300 is reinforced, and the flexibility of the driving tube 300 is also improved.
- the rigidity of the drive tube 300 itself may be further strengthened by the metal material.
- the driving tube 300 since the coil tube 340 is configured in the form of a spring, the driving tube 300 may be more flexibly inserted or moved when the blood vessel is inserted or moved in the blood vessel.
- the coil tube 340 is made of a metal material, since the coil tube 340 is formed in a spiral shape, flexibility can be secured in a direction perpendicular to the longitudinal direction of the driving tube 300.
- the coil tube 340 since the coil tube 340 may be configured in the form of one coil, the driving tube 300 having a multiple structure may be more easily manufactured.
- the coil tube 340 is positioned inside the outer tube 330, and at least distal ends of both ends may be configured to not be exposed to the outside of the driving tube 300.
- the distal end of the coil tube 340 may be shorter than the distal end of the outer tube 330.
- the distal end of the coil tube 340 may be covered by the outer tube 330 so that it is not exposed to the outside at the distal end side of the drive tube 300.
- the distal end of the coil tube 340 is located inside the drive tube 300 and is not exposed to the outer side, whereby the distal end of the coil tube 340 causes the other components of the catheter to vessels.
- the back can be prevented from being damaged.
- the coil tube 340 is made of a metal material, problems such as corrosion of the coil tube 340 due to blood or the like can be prevented.
- the inner tube 310 may be provided inside the coil tube 340.
- the shaft body 600 may be configured to have an inner body, a mesh body, and an outer body. This will be described in more detail with reference to FIG. 9.
- FIG. 9 is a perspective view schematically illustrating a configuration of a shaft body 600 in which a driving tube 300 according to an embodiment of the present invention is inserted into an inner hollow. Also in FIG. 9, parts are removed with respect to the distal ends of the mesh body and the outer body in order to ensure that each component is visible.
- the shaft body 600 may have a triple structure having three layers of an inner body 610, a mesh body 620, and an outer body 630.
- the inner body 610 may constitute an inner layer of the shaft body 600, and a hollow may be formed in the longitudinal direction. That is, the inner body 610 extends long in one direction, and a fourth hollow may be formed.
- the mesh body 620 may be configured in a mesh form and may surround the outer surface of the inner body 610.
- the mesh body 620 extends from the distal end to the proximal end of the inner body 610 and may be provided on an outer surface of the inner body 610.
- the outer body 630 may be configured to extend in one direction from the outside of the inner body 610 and the mesh body 620. In particular, the outer body 630 may be configured to surround the outer surfaces of the inner body 610 and the mesh body 620.
- the description of the drive tube 300 associated with FIGS. 6 and 7 may be similarly applied, and thus, detailed descriptions of parts that may be similarly applied will be omitted.
- the inner body 610 and the outer body 630 may be made of a polymer material.
- the mesh body 620 may be made of a metal material such as stainless steel to secure the rigidity of the driving tube 300.
- the mesh body 620 may be configured in the form of a mesh woven using a plurality of wires.
- the mesh body 620 may be configured such that a plurality of unit mesh rings are continuously disposed along the length direction of the shaft body 600. .
- the mesh body 620 may be shorter than the inner body 610. That is, the inner body 610 may be configured to protrude outward of the distal end than the mesh body 620.
- the shaft body 600 may be configured such that the mesh body 620 is not provided up to about 10 cm from the outermost end of the distal end.
- the mesh body 620 may be formed of a material having a higher rigidity than that of the inner body 610, according to the configuration of the present invention, flexibility of the distal end of the shaft body 600 may be improved. Thus, the distal end of the shaft body 600 can be flexed well along the curved shape of the blood vessel.
- the shaft body 600 may be configured to include a coil body (not shown) instead of the mesh body 620. That is, the shaft body 600 has a coil body and an outer body 630, the outer body 630 is configured in the same or similar form as the above-described embodiment, only the coil body mesh body 620 It may be configured in a different form.
- the coil body may be configured in a shape similar to that of the coil tube 340 of the driving tube 300 described in the embodiment of FIG. 8. That is, the coil body may be configured in the form of a coil and may surround the inner surface of the outer body 630.
- the rigidity and flexibility of the shaft body 600 can be more improved, and the manufacturing can be easier.
- the catheter according to the present invention may further include a power supply line.
- the power supply line may be electrically connected to the electrode 500 to provide a power supply path to the electrode 500.
- the power supply line may have a distal end connected to the electrode 500 and a proximal end connected to an energy supply unit (not shown), such that the energy supply unit supplies power to the electrode 500.
- the power supply line may be separately provided for each of the plurality of electrodes 500, and may be electrically connected to each of the plurality of electrodes 500.
- the plurality of power supply lines may provide a power supply path for each of the plurality of electrodes 500.
- the plurality of power supply lines may be configured in a separate form from the electrode 500 to the energy supply unit.
- the plurality of power supply lines may be configured such that one power supply line is branched into two or more power supply lines at a predetermined point and each branched power supply line is connected to different electrodes 500.
- the shaft body 600 may be configured in various forms such that the power supply line is located therein.
- FIG. 10 is a cross-sectional view taken along line B1-B1 'of FIG. 9.
- the shaft body 600 may be formed with a fourth hollow as indicated by V4, and the driving tube 300 may be inserted into the fourth hollow.
- the shaft body 600 may be further formed with a hollow, as indicated by V5, separately from the fourth hollow V4.
- such a hollow is referred to as a fifth hollow in this specification so that it can be distinguished from other hollows. That is, the shaft body 600 may be formed with at least two hollows in the longitudinal direction.
- the power supply line may be inserted into the fifth hollow V5. That is, the power supply line may be inserted into the fifth hollow.
- the power supply line may be configured to be movable in the longitudinal direction inside the fifth hollow.
- the power supply line may extend to be connected to the electrode 500 through the fifth hollow at the proximal end of the catheter. At this time, the distal end and the proximal end of the fifth hollow may be configured to open to the outside for the exposure of the power supply line.
- both a configuration for driving the catheter head and a configuration for electrical operation may be provided inside a very small outer diameter of the catheter.
- the catheter may have a very small size of approximately 1.4 mm, according to the configuration of the present invention, for the configuration and electrical operation for opening / closing the head of the catheter in the catheter having such a small size
- the wire insertion configuration can be more easily achieved.
- a space in which the wires can be inserted can move can be easily secured.
- a configuration for driving the catheter head and a configuration for electrical operation may not be exposed to most of the catheter.
- the fifth hollow may be provided at an outer side of the fourth hollow. That is, the fifth hollow may be arranged to be biased on any one side in the central axis of the catheter. In this case, the fifth hollow may be configured to be bent along the outer edge of the fourth hollow.
- the fourth hollow may be formed in a substantially circular shape, but the fifth hollow may not be formed in a circular shape. More specifically, the fifth hollow may be interposed between the surface of the fourth hollow and the outer surface of the shaft body 600, and may be curved along the shape of the edge portion of the fourth hollow and the outer edge portion of the shaft body 600. It may be configured in the form.
- the size of the fifth hollow can be widened without relatively increasing the outer diameter of the shaft body 600. Therefore, the space in which the power supply line can be inserted can be secured widely. Therefore, the process of inserting the power supply line into the shaft body 600 can be easily performed.
- the catheter may include a plurality of electrodes 500, a plurality of power supply lines also need to be provided to supply power to the plurality of electrodes 500. Therefore, when a wide fifth hollow is secured as in the above embodiment, it is easy to provide a configuration for supplying power to the plurality of electrodes 500.
- the shaft body 600 may include a variety of other wires in addition to the power supply line.
- the head side of the catheter may include one or more sensors, including a temperature sensor, wherein the wire for sensing needs to be provided long from the proximal end side to the distal end side of the catheter.
- a wire for sensing may be inserted through the wide space of the fifth hollow.
- the fourth hollow and the fifth hollow are illustrated in FIG. 10. As shown, it may be formed on the inner body 610 side.
- FIG. 11 is a perspective view schematically illustrating a catheter according to another embodiment of the present invention
- FIG. 12 is a cross-sectional view taken along line B2-B2 'of FIG. 11. 11 and 12, detailed descriptions of parts to which parts described in connection with the other embodiments may be similarly applied will be omitted and the differences will be mainly described.
- the shaft body 600 may be configured such that the central axis of the fourth hollow coincides with the central axis of the catheter. That is, the fourth hollow of the shaft body 600 may be located at the central portion of the catheter. At this time, the central axis of the fourth hollow and the central axis of the catheter are both denoted by O in the drawings and can be said to be the same.
- the plurality of power supply lines 800 when a plurality of power supply lines 800 are included in the catheter, the plurality of power supply lines 800 may be disposed to be spaced apart from each other by a predetermined angle with respect to the central axis of the fourth hollow.
- the power supply lines 800 when three power supply lines 800 are included, the power supply lines 800 may be arranged at 120 degree intervals with respect to the central axis O of the catheter. Can be.
- the shape of the cross section perpendicular to the longitudinal direction of the catheter can be symmetrical with each other in the up, down, left and right directions relative to the center point (O). Therefore, the connection configuration of the catheter head symmetrically in the vertical and horizontal directions with respect to the center axis of the catheter and the drive tube 300 positioned in the fourth hollow can be easily performed.
- the open and close configuration of the catheter head can be made stable. That is, the opening and closing of the catheter head may be radially based on the center axis of the catheter. When the driving tube 300 is positioned at the center portion of the catheter, such radial open / close operation may be stably implemented.
- the power supply line 800 may be inserted between the inner surface and the outer surface of the shaft body 600 and may be configured to be fixedly coupled to the shaft body 600.
- the inner surface of the shaft body 600 may be referred to as a surface forming the fourth hollow of the shaft body 600.
- the power supply line 800 is not configured to be inserted into a hole formed in the shaft body 600, but as shown in FIG. 12, embedded in the shaft body 600, that is, in an integrated form. Can be configured.
- the power supply line 800 is already embedded in the manufacturing process of the shaft body 600, it is not necessary to perform a process of separately inserting the power supply line 800 for assembling the catheter.
- the hole for inserting the power supply line 800 need not be provided in the shaft body 600, the outer diameter of the shaft body 600 may be reduced, which may be advantageous in miniaturization of the catheter.
- the power supply line 800 is fixed inside the shaft body 600, there is no fear of damage to the power supply line 800 or damage to the connection portion with the electrode 500 due to the flow of the power supply line 800. .
- the power supply line 800 may be embedded in the inner body 610.
- FIG. 13 and 14 are diagrams schematically showing a configuration in which the power supply line 800 according to an embodiment of the present invention is embedded in the shaft body 600.
- a power supply line 800 may be interposed between the inner body 610 and the mesh body 620.
- the outer body 630 may be located outside the mesh body 620.
- the inner body 610 and the outer body 630 may be made of a polymer material
- the mesh body 620 may be made of a metal material.
- a portion of the outer body 630 may melt.
- a portion of the molten outer body 630 flows inwardly through the mesh-shaped opening of the mesh body 620, and as shown in FIG. 14, the existing inner body covering the power supply line 800. 610 may be combined.
- the application of heat and pressure is released, a portion of the outer body 630 that is melted and introduced into the mesh body 620 cools and forms the inner body 610 together with the existing inner body 610. do.
- FIGS. 13 and 14 has been described with reference to the form in which the mesh body 620 is included, the form in which the mesh body 620 is not included is also possible.
- the inner body 610 and the outer body 630 may be made of the same material.
- FIG. 15 is a perspective view schematically illustrating a catheter according to another embodiment of the present invention
- FIG. 16 is a cross-sectional view taken along line B3-B3 'of FIG. 15.
- the description of the other exemplary embodiments may be similarly applied, and detailed descriptions thereof will be omitted.
- the fourth hollow of the shaft body 600 is located at the center of the catheter, and the plurality of power supply lines 800 are of the fourth hollow. It is arranged to be spaced apart from the central axis by a predetermined angle. Therefore, as in FIGS. 11 and 12, the connection configuration of the catheter head, the drive tube 300, and the power supply line 800 can be easily achieved, and the operation configuration of the catheter head by the drive tube 300 is stably. Can be done.
- the power supply line 800 is embedded in the driving tube 300. That is, the power supply line 800 is inserted between the inner surface and the outer surface of the drive tube 300, is integrally formed with the drive tube 300 is configured in a fixed form.
- the power supply line 800 since the power supply line 800 is already embedded in the manufacturing process of the drive tube 300, the power supply line 800 to the shaft body 600 or the drive tube 300 for the assembly of the catheter. There is no need to perform the process of inserting in. In addition, it is not necessary to provide a hole for inserting the power supply line 800 in the shaft body 600 or the driving tube 300, which is advantageous for miniaturization of the catheter head, and damage of the power supply line 800 or the electrode 500. It can prevent the problem of damage to the connection part.
- the driving tube 300 is formed in a triple structure of the inner tube 310, the mesh tube 320 and the outer tube 330, the power supply line 800, as shown in the figure, the outer tube ( 330 may be embedded.
- 17 and 18 are views schematically showing a configuration in which the power supply line 800 according to an embodiment of the present invention is embedded in the drive tube 300.
- a power supply line 800 may be interposed between the mesh tube 320 and the outer tube 330.
- an inner tube 310 may be positioned inside the mesh tube 320.
- the outer tube 330 and the inner tube 310 may be made of a polymer material
- the mesh tube 320 may be made of a metal material. As indicated by the arrows in this configuration, applying heat and high pressure outside the outer tube 330 can cause at least a portion of the outer tube 330 to melt.
- a portion of the molten outer tube 330 may be directed toward the mesh tube 320 while covering the power supply line 800 as illustrated in FIG. 18.
- the melt of the outer tube 330 reaching the mesh tube 320 may come into contact with the inner tube 310 through the mesh-shaped opening of the mesh tube 320. Accordingly, the melt of the outer tube 330 may be part of the inner tube 310 while being combined with the inner tube 310, and the power supply line 800 may be embedded in the outer tube 330.
- the power supply line 800 is located inside the mesh tube 320 and embedded in the inner tube 310. It is also possible to form.
- the power supply line 800 may be located inside the driving tube 300.
- the power supply line 800 may be configured in a form embedded in the outer tube (330).
- the power supply line 800 may be provided in contact with the outer surface of the driving tube.
- the catheter according to the present invention may further include a heat shrink film for closely contacting the power supply line 800 to the outer surface of the drive tube 300. This will be described in more detail with reference to FIGS. 19 and 20.
- FIG. 19 is a view schematically illustrating a configuration in which a power supply line 800 is provided outside the driving tube 300 according to another embodiment of the present disclosure
- FIG. 20 schematically illustrates one form of a catheter to which the configuration of FIG. 19 is applied. It is a figure shown by. Here, the parts that differ from the foregoing embodiment will be mainly described.
- the power supply line 800 may be configured to be positioned outside the driving tube 300.
- the tube-type heat shrink film 1100 may be configured to surround the power supply line 800 and the driving tube 300 together. That is, the heat shrink film 1100 is configured in a tubular shape extending in the same direction as the longitudinal direction of the catheter, the power supply line 800 and the drive tube 300 may be inserted into the interior (hollow). And, as indicated by the arrow, when heat is applied outside the heat shrink film 1100, the heat shrink film 1100 may be in close contact with the outside of the power supply line 800 and the drive tube 300 while being contracted due to this heat. .
- the heat shrink film 1100 may be configured to surround the outside of the power supply line 800 and the driving tube 300 in a heat shrinked state. Accordingly, the power supply line 800 may be attached to the outside of the driving tube 300 by the heat shrink film 1100.
- the heat shrink film 1100, the power supply line 800, and the driving tube 300 configured as described above may be located in the inner space of the shaft body 600, that is, the fourth hollow V4.
- the heat shrink film 1100 may be made of a material that can be shrunk by heat.
- the heat shrink film 1100 may be made of a polymer material, for example, a poly ethylene terephthalate (PET) material.
- PET poly ethylene terephthalate
- the heat shrink process is easy, and little harmful substances are generated in the heat shrink process, and may have excellent flexibility.
- the power supply line 800 is fixed to the outside of the drive tube 300 to reduce the risk of disconnection, the movement of the drive tube 300 by the power supply line 800 is limited or the drive tube ( It is possible to prevent the 300 and the shaft body 600 from being damaged.
- a process of fixing the power supply line 800 to the driving tube 300 and a process of inserting the power supply line 800 into the shaft body may be more easily performed, thereby improving the manufacturing processability of the catheter.
- even if the diameter of the catheter is not increased, it can be said that a structure in which the catheter is open / closed and electrically operable is provided.
- the head portion of the catheter may be shortened and the catheter may be flexible, and the exposure of the power supply line 800 may be limited, thereby facilitating the protection of the power supply line 800.
- the driving tube 300 is located at the center side of the catheter, so that the insertion of the guide wire 700 can be facilitated.
- the catheter according to the present invention may further include a deflection wire 900.
- the deflection wire 900 is configured to extend in one direction, and may be located from the distal end of the catheter to the proximal end of the catheter. In this case, the deflection wire 900, the distal end may be fixed to the distal end of the catheter. In addition, the deflection wire 900, the proximal end may be exposed outward from the proximal end of the shaft body 600.
- the deflection wire 900 may be configured to be movable in the longitudinal direction in the inner space of the catheter.
- the deflection wire 900 may be configured to be movable in the longitudinal direction while being inserted into the shaft body 600.
- the deflection wire 900 may include an inner surface of the driving tube 300 and a shaft body (in the inner space of the fourth hollow V4 that is hollow of the shaft body 600). It may be interposed between the inner surface of 600).
- a hole is formed in the inner body 610 of the shaft body 600 along the longitudinal direction of the catheter, and a deflection wire 900 is formed in the hole. It can be configured to be inserted and moved in the longitudinal direction.
- the catheter head side where the distal end of the shaft body 600 is located via the deflection wire 900 it is possible to bend the catheter head side where the distal end of the shaft body 600 is located via the deflection wire 900.
- the distal end of the shaft body 600 is bent when the deflection wire 900 is pulled by the operator, and the distal end of the shaft body 600 is pushed when the deflection wire 900 is pushed by the operator.
- the catheter according to the present invention may further include an end tip 1000 at the distal end of the catheter, ie, in front of the distal end of the catheter head, as shown in FIG.
- the end tip 1000 is formed in a tubular shape having a hollow, and may be formed of a soft and flexible material.
- the end tip 1000 may be formed of a composition comprising a polyether block amide (PEBA).
- PEBA polyether block amide
- the end tip 1000 made of a soft and flexible material is positioned at the forefront, thereby reducing damage to the blood vessel and the like, and easily changing the direction. It can be done.
- the end tip 1000 of the material as described above because it is possible to shoot by X-ray, it may be easy to determine the position of the catheter head.
- the nerve block device may include the catheter described above.
- the nerve blocking device may further include an energy supply unit and a counter electrode 500 in addition to the nerve blocking catheter.
- the energy supply unit may be electrically connected to the electrode 500 through the power supply line 800.
- the counter electrode 500 may be electrically connected to the energy supply unit through another wire.
- the energy supply unit may supply energy to the electrode 500 of the catheter in the form of a high frequency wave, and heat may be generated at the electrode 500 of the catheter to cut off the nerves around the blood vessel, thereby blocking the nerve. .
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Abstract
Description
Claims (15)
- 일 방향으로 길게 연장되어 근위 단부와 원위 단부를 구비하는 카테터에 있어서,상기 카테터의 원위 단부 측에 위치하고, 양단이 개방된 형태로 제1 중공이 형성된 제1 지지부재;상기 제1 지지부재보다 상기 카테터의 근위 단부 측에 위치하고, 양단이 개방된 형태로 제2 중공이 형성된 제2 지지부재;일 방향으로 길게 연장되게 구성되고, 길이 방향 양단이 개방된 형태로 제3 중공이 형성되며, 상기 제1 중공 및 상기 제2 중공에 삽입되고, 상기 제1 지지부재 또는 상기 제2 지지부재에 고정되어 상기 제1 지지부재 또는 상기 제2 지지부재를 길이 방향으로 이동시키는 구동 튜브;일측 단부가 상기 제1 지지부재에 연결되고 타측 단부가 상기 제2 지지부재에 연결되며, 상기 제1 지지부재와 상기 제2 지지부재 사이의 거리가 좁아지는 경우 적어도 일부분이 벤딩되어 벤딩 부위가 상기 제3 중공의 중심축으로부터 멀어지도록 구성된 하나 이상의 연결 부재;상기 연결 부재에 구비되어 열을 발생시키는 하나 이상의 전극; 및상기 제2 지지부재보다 상기 카테터의 근위 단부 측에 위치하고, 일 방향으로 길게 연장되게 구성되며, 상기 구동 튜브가 삽입되어 길이 방향으로 이동 가능하도록 길이 방향 양단이 개방된 형태로 제4 중공이 형성된 샤프트 바디를 포함하는 것을 특징으로 하는 카테터.
- 제1항에 있어서,일 방향으로 길게 연장되게 구성되고, 상기 구동 튜브의 양단 개방부를 통해 상기 제3 중공에 삽입되어 상기 제3 중공 내부에서 길이 방향으로 이동 가능하게 구성된 가이드 와이어를 더 포함하는 것을 특징으로 하는 카테터.
- 제1항에 있어서,상기 구동 튜브는, 제1 지지부재에 고정되고, 상기 제2 중공 내부에서 길이 방향으로 이동 가능하게 구성된 것을 특징으로 하는 카테터.
- 제1항에 있어서,상기 구동 튜브는, 일 방향으로 길게 연장되며 상기 제3 중공이 형성된 내부 튜브, 메쉬 형태로 구성되며 상기 내부 튜브의 외면을 감싸도록 구성된 메쉬 튜브, 및 일 방향으로 길게 연장되며 상기 내부 튜브와 상기 메쉬 튜브의 외면을 감싸도록 구성된 외부 튜브를 구비하는 것을 특징으로 하는 카테터.
- 제1항에 있어서,상기 구동 튜브는, 일 방향으로 길게 연장되며 상기 제3 중공이 형성된 외부 튜브 및 코일 형태로 구성되며 상기 외부 튜브의 내면을 감싸도록 구성된 코일 튜브를 구비하는 것을 특징으로 하는 카테터.
- 제1항에 있어서,상기 샤프트 바디는, 일 방향으로 길게 연장되며 상기 제4 중공이 형성된 내부 바디, 메쉬 형태로 구성되며 상기 내부 바디의 외면을 감싸도록 구성된 메쉬 바디, 및 일 방향으로 길게 연장되며 상기 내부 바디와 상기 메쉬 바디의 외면을 감싸도록 구성된 외부 바디를 구비하는 것을 특징으로 하는 카테터.
- 제1항에 있어서,상기 전극에 전기적으로 연결됨으로써, 상기 전극에 대한 전원 공급 경로를 제공하는 전원공급선을 더 포함하는 것을 특징으로 하는 카테터.
- 제7항에 있어서,상기 샤프트 바디는, 내부에 상기 제4 중공과는 별도로 길이 방향으로 제 5 중공이 더 형성되고,상기 전원공급선은, 상기 제5 중공에 삽입되어 길이 방향으로 이동 가능하게 구성되며, 상기 카테터의 근위 단부에서 상기 전극까지 연결된 것을 특징으로 하는 카테터.
- 제8항에 있어서,상기 제5 중공은, 상기 제4 중공의 외부 일측에 구비되며, 상기 제4 중공의 외연을 따라 절곡된 형태로 구성된 것을 특징으로 하는 카테터.
- 제7항에 있어서,상기 샤프트 바디는, 상기 제4 중공의 중심축이 상기 카테터의 중심축에 일치하도록 구성되고,상기 전원공급선은, 다수 개 포함되어 상기 제4 중공의 중심축을 기준으로 상호 간 소정 각도 이격되게 배치되도록 구성된 것을 특징으로 하는 카테터.
- 제10항에 있어서,상기 전원공급선은, 상기 샤프트 바디의 내면과 외면 사이에 삽입되어 상기 샤프트 바디와 결합 고정된 형태로 구성된 것을 특징으로 하는 카테터.
- 제10항에 있어서,상기 전원공급선은, 상기 구동 튜브의 내면과 외면 사이에 삽입되어 상기 구동 튜브와 결합 고정된 형태로 구성된 것을 특징으로 하는 카테터.
- 제7항에 있어서,상기 전원공급선은 상기 구동 튜브의 외면에 접촉된 상태로 구비되고,상기 카테터는 상기 전원공급선과 상기 구동 튜브의 외측을 감싸도록 열수축된 형태로 구성된 열수축 필름을 더 포함하는 것을 특징으로 하는 카테터.
- 제1항에 있어서,일 방향으로 길게 연장되게 구성되고, 원위 단부가 상기 샤프트 바디의 원위 단부에 고정되며, 근위 단부가 상기 샤프트 바디의 근위 단부에서 외측으로 노출되며, 상기 샤프트 바디의 내부에서 길이 방향으로 이동 가능하게 구성된 디플렉션 와이어를 더 포함하는 것을 특징으로 하는 카테터.
- 제1항 내지 제14항 중 어느 한 항에 따른 카테터를 포함하는 신경차단 장치.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201780052052.5A CN109688954A (zh) | 2016-08-25 | 2017-08-24 | 去神经支配导管 |
| EP17843982.4A EP3505127A4 (en) | 2016-08-25 | 2017-08-24 | DENERVATIONSKATHETER |
| JP2019510450A JP7053581B2 (ja) | 2016-08-25 | 2017-08-24 | 除神経用カテーテル |
| SG11201901099VA SG11201901099VA (en) | 2016-08-25 | 2017-08-24 | Denervation catheter |
| US16/320,611 US20190159837A1 (en) | 2016-08-25 | 2017-08-24 | Denervation catheter |
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| KR10-2016-0108293 | 2016-08-25 | ||
| KR20160108293 | 2016-08-25 | ||
| KR1020170103192A KR102067773B1 (ko) | 2016-08-25 | 2017-08-14 | 신경차단용 카테터 |
| KR10-2017-0103192 | 2017-08-14 |
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| WO2018038562A1 true WO2018038562A1 (ko) | 2018-03-01 |
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| PCT/KR2017/009283 Ceased WO2018038562A1 (ko) | 2016-08-25 | 2017-08-24 | 신경차단용 카테터 |
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| WO2004052182A2 (en) * | 2002-12-11 | 2004-06-24 | Proteus Biomedical, Inc. | Monitoring and treating hemodynamic parameters |
| KR20110129858A (ko) * | 2008-12-31 | 2011-12-02 | 메드트로닉 아디언 엘엘씨 | 혈관 내로 열-유도된 신장의 신경조절을 구현하기 위한 기구, 시스템 및 방법 |
| US20140200578A1 (en) * | 2013-01-14 | 2014-07-17 | Boston Scientific Scimed, Inc. | Renal nerve ablation catheter |
| JP2015112113A (ja) * | 2013-12-06 | 2015-06-22 | 株式会社グッドマン | ガイディングカテーテル |
| US20150230859A1 (en) * | 2014-02-19 | 2015-08-20 | Kevin Mauch | Bi-directional deployment of neuromodulation devices and associated systems and methods |
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| WO2004052182A2 (en) * | 2002-12-11 | 2004-06-24 | Proteus Biomedical, Inc. | Monitoring and treating hemodynamic parameters |
| KR20110129858A (ko) * | 2008-12-31 | 2011-12-02 | 메드트로닉 아디언 엘엘씨 | 혈관 내로 열-유도된 신장의 신경조절을 구현하기 위한 기구, 시스템 및 방법 |
| US20140200578A1 (en) * | 2013-01-14 | 2014-07-17 | Boston Scientific Scimed, Inc. | Renal nerve ablation catheter |
| JP2015112113A (ja) * | 2013-12-06 | 2015-06-22 | 株式会社グッドマン | ガイディングカテーテル |
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