Method, device, system and storage medium for RF operation reminder using multipolar radiofrequency ablation catheter

Abstract

The present invention relates to a method, apparatus, system and computer readable storage medium for RF operation reminder with a multipolar radiofrequency ablation catheter. [Solution] The method includes the steps of: a computer terminal periodically obtains physical property data of the operation position of the RF operation object by a plurality of probes formed at intervals on the outer circumferential surface of the multipolar radiofrequency ablation catheter; obtaining a physical property field of the RF operation object by the periodically obtained physical property data; obtaining the initial range of the target operation area of ​​the RF operation object and the change in the range of the operation waiting area in the target operation area according to the change in the physical property data in the physical property field, and displaying the change in the range as a three-dimensional model. The present invention can improve the success rate and effect of RF operation by visualizing the change in the range of the operation waiting area.

Description

[Technical field]

[0001] The present invention relates to the technical field of data processing, and in particular to a method, device, system and storage medium for RF operation reminder using a multi-polar radiofrequency ablation catheter. [Background technology]

[0002] In RF technology, an RF probe is introduced to the location of an RF manipulation target by image guidance, and an RF signal transmitted by an RF host is applied to the RF manipulation target to perform RF manipulation. In the process of RF manipulation, the user must be able to grasp the process of RF manipulation in order to ensure the effect of RF manipulation.

[0003] In the prior art, when performing RF operation, the RF host usually displays simple numbers on the display interface to allow the user to grasp the current RF operation status. However, the prior art reminder method has the disadvantage that the accuracy of the reminder is low and the content of the reminder information is small, so that the user cannot grasp the current RF operation status. This reduces the effect of the reminder and may affect the effect of the RF operation. Summary of the Invention [Problem to be solved by the invention]

[0004] In the embodiments of the present invention, a method, device, system and storage medium for reminding RF operation using a multi-polar radiofrequency ablation catheter are provided, which can provide visual information to remind the change in the range of the operation waiting area, thereby improving the effectiveness of the reminding information and improving the success rate and effect of RF operation. [Means for solving the problem]

[0005] In one embodiment of the present invention, a method for RF operation reminder using a multi-polar radiofrequency ablation catheter is provided for use in a computer terminal, the method comprising: Obtaining physical characteristic data of an operation position of an RF operation target by a plurality of probes on a multipolar radio frequency ablation catheter at regular intervals; acquiring a physical property field of the RF manipulation object according to the physical property data acquired at regular intervals; obtaining a change in the range of an operation standby area in the target operation area according to a change in the initial range of the target operation area of ​​the RF operation target and a change in the value of the physical property data in the physical property field, and displaying the change in range as a three-dimensional model; the multipolar radiofrequency ablation catheter includes a handle having a proximal end and a distal end, an outer tube module having a proximal end and a distal end, and an inner tube module having a proximal end and a distal end; a proximal end of the outer tube module is coupled to a distal end of the handle; a proximal end of the inner tube module is coupled to a distal end of the handle; The inner tube module includes a branch-type electrode module that rotates relative to the outer tube module by driving the handle, and the branch-type electrode module includes a plurality of branch-type electrodes spaced apart on its circumferential surface, and the branch-type electrode includes the probe.

[0006] In an embodiment of the present invention, there is further provided an electronic device, the electronic device including a storage device and a processing device, The storage device stores executable program code; The processing device is electrically connected to the multipolar radiofrequency ablation catheter and a memory device, and implements the RF operation reminder method using the multipolar radiofrequency ablation catheter of the embodiment by using executable program code stored in the memory device.

[0007] In an embodiment of the present invention, there is further provided a non-volatile computer-readable storage medium having a computer program stored therein, the computer program being executed by a processing device to implement the RF operation reminder method using a multi-polar radiofrequency ablation catheter according to the embodiment. Effect of the Invention

[0008] In each embodiment of the present invention, a plurality of physical characteristic data of RF operation position is obtained by a plurality of probes on a multi-polar radiofrequency ablation catheter at any time, and a physical characteristic field of an RF operation object is obtained by the physical characteristic data. Then, according to the initial range of the target operation area of ​​the RF operation object and the change of the physical characteristic data in the physical characteristic field, the change of the range of the operation waiting area in the target operation area is obtained, and the change of the range is displayed as a three-dimensional model. The change of the range of the operation waiting area is made into visual information to remind, so that the content of the reminder information is enriched, the intuitiveness of the reminder information is improved, and the accuracy and intelligence of determining the operation waiting area is improved. Therefore, the effectiveness of the reminder information can be improved, and the success rate and effect of RF operation can be improved. [Brief description of the drawings]

[0009] In the following, in order to explain technical matters related to the embodiments of the present invention or technical matters related to the prior art in more detail, drawings of the embodiments of the present invention or drawings of the prior art will be briefly described. It should be noted that the drawings are merely illustrative of the present invention. Those skilled in the art can come up with other drawings from the drawings without creative invention. [Figure 1] 1 is a diagram showing the overall structure of a multipolar radiofrequency ablation catheter according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an exploded view of a portion of the catheter module of the multipolar radiofrequency ablation catheter of FIG. 1. [Diagram 3]FIG. 2 is a cross-sectional view of a portion of a catheter module of the multipolar radiofrequency ablation catheter of FIG. 1. [Figure 4] FIG. 2 is an exploded view of a portion of the handle of the multipolar radiofrequency ablation catheter of FIG. 1. [Diagram 5] FIG. 2 is a diagram showing the overall structure of a multipolar radiofrequency ablation catheter according to another embodiment of the present invention. [Figure 6] FIG. 6 is an exploded view of a portion of the handle of the multipolar radiofrequency ablation catheter of FIG. 5. [Figure 7] FIG. 2 is a diagram showing the overall structure of a multipolar radiofrequency ablation catheter according to another embodiment of the present invention. [Figure 8] FIG. 8 is an exploded view of a portion of the handle of the multipolar radiofrequency ablation catheter of FIG. [Figure 9] FIG. 8 is an exploded view of a portion of the catheter module of the multipolar radiofrequency ablation catheter of FIG. [Figure 10] FIG. 1 is a diagram showing an application example of an RF operation reminder method using a multipolar radiofrequency ablation catheter according to an embodiment of the present invention. [Figure 11] 1 is a flow chart showing a method for RF operation reminder using a multipolar radiofrequency ablation catheter according to an embodiment of the present invention. [Figure 12] 11 is a flow chart showing a method for RF operation reminder using a multipolar radiofrequency ablation catheter according to another embodiment of the present invention. [Figure 13] FIG. 2 is a diagram showing the structure of an RF operation reminder device according to an embodiment of the present invention; [Figure 14] FIG. 2 is a diagram showing the structure of an RF operation reminder system according to an embodiment of the present invention; [Figure 15] FIG. 2 is a diagram illustrating a hardware configuration of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In order to describe the object, technical matters and effects of the present invention in more detail, the technical matters of the embodiments of the present invention will be described in more detail and fully below with reference to the drawings of the embodiments of the present invention. The following embodiments are only a part of the embodiments of the present invention and do not represent all the embodiments. When referring to the embodiments of the present invention, a person skilled in the art can come up with other embodiments without creative research, and of course, these are included in the present invention.

[0011] It should be noted that in the present specification, directional or positional terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential" and the like are used to indicate the direction or position of each item on the drawings. They are used to simplify the description of the present invention, and do not explicitly or implicitly indicate that the devices or parts of the present invention have a specific direction or have a structure and operation in a specific direction, and do not limit the present invention.

[0012] In the present specification, "axial" means a direction parallel to the longitudinal direction of the multipolar radiofrequency ablation catheter, "diametric" means a direction approximately perpendicular to the axial direction, and "circumferential" means a direction surrounding the axial direction.

[0013] "Inside" / "outside" are two corresponding concepts and mean that all or part of one feature or part having that feature is located diametrically behind / diametrically outside the whole part having the other feature.

[0014] "Near end" / "far end" are two corresponding concepts. "Near end" means an end that is closer to an operator in the axial direction. For example, it can refer to an end that is closer to an operator of a specific part, module, or device, or it can refer to a part that is closer to an operator of a specific part, module, or device. "Far end" means an end that is farther away from an operator in the axial direction. For example, it can refer to an end that is farther away from an operator of a specific part, module, or device, or it can refer to a part that is farther away from an operator of a specific part, module, or device.

[0015] In the present invention, unless otherwise specified, the meanings of the terms "mounted", "connected", "coupled", "fixed", etc. should be interpreted broadly. For example, unless otherwise specified, "fixedly coupled" means detachably coupled, integrally coupled, mechanically coupled, electrically connected, communicatively coupled, directly coupled, indirectly coupled through a central part, two parts connected in a state of internal communication, or two parts connected so as to affect each other. Those skilled in the art can specifically understand the specific meanings of the above terms according to specific situations.

[0016] Hereinafter, the technical matters of the present invention will be described in detail with reference to specific embodiments. Once the same or similar concept or process is described in any one specific embodiment, it will not be described again in other embodiments.

[0017] Referring to FIG. 1, as shown in FIG. 1, a multipole radio frequency ablation catheter 100 provided in an embodiment of the present invention includes a handle 10 and a catheter module 20 connected to the handle 10. The catheter module 20 includes an outer tube module 40 connected to the handle 10 and an inner tube module 60 connected to the handle 10. The inner tube module 60 can rotate relative to the outer tube module 40 by driving the handle 10. Specifically, the proximal end of the outer tube module 40 is connected to the distal end of the handle 10. The inner tube module 60 includes a branch-type electrode module 61. The distal end of the branch-type electrode module 61 can protrude from the distal end of the outer tube module 40. Preferably, the distal end of the branch-type electrode module 61 protrudes from the distal end of the outer tube module 40 by operating the handle 10. More preferably, the distal end of the branched electrode module 61 is formed in an expanded state and protrudes in a cylindrical state onto the outer periphery of the distal end of the outer tube module 40. The branched electrode module 61 includes a plurality of branched electrodes 610 spaced apart on its circumferential surface.

[0018] When using the above structure, a user can control the rotation of the branch-type electrode module 61 relative to the outer tube module 40 by operating the handle 100. Therefore, when the catheter module 20 of the multipolar radiofrequency ablation catheter 100 is fed into the inside of the patient's lungs under the guidance of B-scan ultrasonography and CT (Computed Tomography), blood vessels can be prevented from being punctured by passing through the gaps between the adjacent branch-type electrode modules 61 of the inner tube module 60. In addition, since there is no need to rotate the outer tube module 40, the convenience of operation can be improved.

[0019] 1 to 3, in this embodiment, each branch-type electrode 610 of the branch-type electrode module 61 includes a probe 611, a sensor wire 612 connected to the probe 611, and a lead wire 613. When the catheter module 20 is inserted into the patient's body, for example, the patient's lungs, the included angles formed between the probe 611 of each branch-type electrode 610 and the central axis of the multipolar radiofrequency ablation catheter 100 may be the same or different.

[0020] The inner tube module 60 may further include a support part 62 for supporting the branch-type electrode module 61. The support part 62 is substantially cylindrical in shape, and each branch-type electrode 610 of the branch-type electrode module 61 is arranged at intervals on the outer circumferential surface of the support part 62. In this embodiment, the support part 62 is arranged at the distal end of the outer tube module 40, and the support part 62 and the branch-type electrode module 61 rotate together relative to the outer tube module 40, and the branch-type electrode module 61 can slide in the axial direction of the support part 62.

[0021] In this embodiment, the inner tube module 60 further includes a central electrode 63 fixed to the distal end of the support part 62. The support part has a through hole 620 passing through the center of the support part 62 in the axial direction, and the sensor wire and lead wire of the central electrode 63 and the saline injection tube (not shown) are accommodated in the through hole 620. A plurality of recessed connecting recesses 630 are formed on the end face of the proximal end of the central electrode 63. The sensor wire and lead wire of the central electrode 63 are respectively attached to the connecting recesses 630 and inserted into the through hole 620 of the support part 62. A hollow liquid injection part 631 protrudes from the center of the end face of the proximal end of the central electrode 63, and the liquid injection part 631 is connected to the saline injection tube extending from the through hole 620 of the support part 62. Preferably, the inner tube module 60 further includes a lubricating cover 64 attached to the outer peripheral surface of the central electrode 63. A plurality of lubricating holes 640 are formed on the lubricating cover 64 and passing through the lubricating cover 64 in the diametric direction. It is preferable that the lubrication holes 640 are uniformly formed in the circumferential and axial directions. The saline in the saline injection tube flows into the central electrode 63 through the liquid injection part 631, and flows out of the lubrication holes 640 through a passage (not shown) in the central electrode 63. This allows the saline to diffuse into the patient's tissue, for example, lung tissue.

[0022] In this embodiment, the inner tube module 60 further includes a first connecting part 65 for connecting the support part 62 and the central electrode 63. The first connecting part 65 is a hollow cylinder, and is preferably made of plastic. Preferably, the distal end of the first connecting part 65 is connected to the lubricating cover 64 and / or the central electrode 63 by a fusion connecting means. Preferably, the first connecting part 65 and the central electrode 63 are connected to each other by a metal wire (not shown) to improve the connection strength between the first connecting part 65 and the central electrode 63. One end of the metal wire is connected to the connection recess 630 on the end surface of the proximal end of the central electrode 63, and the other end is connected to the first connecting part 65 by a fusion connecting means. Preferably, the distal end of the support part 62 is formed with a hollow threaded part 621 corresponding to the through hole 620. By connecting the near end of the first connecting part 65 to the outer peripheral surface of the hollow screw portion 621 by a fusion connecting means, the connection strength between the first connecting part 65 and the support part 62 can be improved, and the first connecting part 65 and the parts connected to the first connecting part 65, such as the central electrode 63, can be prevented from falling off.

[0023] In this embodiment, the end face of the proximal end of the support part 62 and the end face of the distal end of the outer tube module 40 are arranged to face each other. When the end face of the distal end of the outer tube module 40 abuts against the end face of the proximal end of the support part 62, the outer tube module 40 can determine the axial position of the support part 62 and prevent the support part 62 and the branch-type electrode module 61 from moving toward the proximal end when they rotate together. A predetermined gap can also be reserved in advance between the end face of the proximal end of the support part 62 and the end face of the distal end of the outer tube module 40. This can determine the axial position of the support part 62 and ensure that the support part 62 and the branch-type electrode module 61 rotate smoothly together.

[0024] In this embodiment, the inner tube module 60 further includes a rotating component 66 that connects the support component 62 and the outer tube module 40. The rotating component 66 is generally cylindrical in shape. The distal end of the rotating component 66 is fixed to the support component 62, for example, by an interference fit or by welding. The proximal end of the rotating component 66 is rotatably connected to the outer tube module 40.

[0025] Preferably, the support part 62 includes a plurality of first recesses 622 formed at intervals on its outer circumferential surface, and the size of the first recesses 622 in the longitudinal direction coincides with the size of the support part 62 in the longitudinal direction (i.e., the axial direction). The branch-type electrodes 610 are slidably housed in the respective first recesses 622, and the distal ends of the branch-type electrodes 610 can be fed into or fed out of the rotating part 66 by sliding. The formation of the first recesses 622 ensures smooth sliding of the branch-type electrodes 610 in the axial direction, and prevents deviation during sliding. Preferably, the rotating part 66 covers only a portion of each of the first recesses 622, and the distal ends of each of the first recesses 622 are exposed. This makes it easy to grasp the rotation direction of the support part 62. By grasping the rotation direction of the branch-type electrode module 61, the branch-type electrode module 61 can be controlled to avoid the blood vessel.

[0026] Preferably, a first protrusion 660 protruding in a diametrical direction toward the axis is formed on the inner wall of the rotating part 66, and a second protrusion 400 protruding in a diametrical direction toward the outside is formed on the far end of the outer tube module 40. The second protrusion 400 rotatably supports the far end of the first protrusion 660. This ensures that the rotating part 66, the support part 62, and the branch-type electrode module 61 rotate together relative to the outer tube module 40, and prevents the rotating part 66, the support part 62, and the branch-type electrode module 61 from moving toward the far end when they rotate together. In addition, the rotating part 66 and parts connected to the rotating part 66, such as the support part 62, can be prevented from falling off.

[0027] Preferably, the outer tube module 40 includes an outer sheath tube 41 and a connecting tube 42 which are connected to each other. The proximal end of the outer sheath tube 41 is connected to the distal end of the handle 10. Preferably, the proximal end of the outer sheath tube 41 is integrally fixed to the distal end of the handle 10. The connecting tube 42 is housed in the distal end of the outer sheath tube 41, and the connecting tube 42 is connected to the distal end of the outer sheath tube 41 by interference fit, welding, or the like. A second protrusion 400 is formed on the end surface of the distal end of the connecting tube 42, and the second protrusion 400 abuts against the rotating part 66.

[0028] Preferably, the end face of the distal end of the outer sheath tube 41 abuts against the end face of the proximal end of the rotating part 66. This makes it possible to prevent the rotating part 66, the support part 62, and the branch-type electrode module 61 from moving toward the proximal end when they rotate together.

[0029] Preferably, in this embodiment, the inner tube module 60 further includes a spring tube 67 housed in the outer tube module 40. The distal end of the spring tube 67 is directly or indirectly connected to the probe 611 of the branch-type electrode module 61. In this embodiment, the inner tube module 60 further includes a second connecting part 68 connecting the spring tube 67 to the probe 611 of the branch-type electrode module 61. The proximal end of the second connecting part 68 is attached to the outer circumferential surface of the distal end of the spring tube 67 and connected to the distal end of the spring tube 67. The distal end of the second connecting part 68 is attached on the proximal end of the probe 611 of the branch-type electrode module 61 and connected to the proximal end of the probe 611 of the branch-type electrode module 61.

[0030] In this embodiment, the conducting wire 613 and the sensor wire 612 of the branch-type electrode module 61 pass through the inside of the spring tube 67 and then extend to the proximal end (handle 10). The sensor wire and conducting wire of the saline injection tube and the central electrode 63 extend to the proximal end side through the through-hole 620 of the support part 62, and then extend to the annular gap between the second connecting part 68 and the connecting tube 42. Then, they extend to the proximal end (handle 10) through the annular gap between the spring tube 67 and the outer sheath tube 41.

[0031] In this embodiment, as shown in Figures 1 and 4, the handle 10 includes a case 11, an end cap 12 connected to the distal end of the case 11, a rotating sphere 13 rotatably housed within the end cap 12, and a push-pull rod 14 connected to the rotating sphere 13 so as not to rotate relative to the rotating sphere 13.

[0032] In this embodiment, the case 11 has a hollow, generally cylindrical shape, and includes two case segments that are joined together to form the case 11. A cylindrical male connecting part 110 is attached to the far end of one of the case segments. The end cover 12 includes a hollow, cylindrical female connecting part 120 that is attached to the male connecting part 110 so as to cover the outer circumferential surface of the male connecting part 110, a plurality of arc-shaped connecting parts 121 that are connected to the far end of the female connecting part 120 and form one storage chamber 122, and a cone-shaped part 123 that is connected to the far end of the plurality of arc-shaped connecting parts 121. An opening 124 is formed between two adjacent arc-shaped connecting parts 121. The outer sheath tube 41 is inserted into the cone-shaped part 123. In this embodiment, the outer sheath tube 41 is connected to the cone-shaped part 123 as an integral part. The rotating ball 13 is stored in the storage chamber 122, and a user can rotate the rotating ball 13 in the storage chamber 122 through an opening 124. The proximal end of the push-pull rod 14 is stored in the case 11, and the distal end passes through the male coupling part 110 and the rotating ball 13 in order, and then is inserted into the outer sheath tube 41, and is then directly or indirectly connected to the spring tube 67. In this embodiment, the distal end of the push-pull rod 14 is directly connected to the spring tube 67.

[0033] Preferably, the push-pull rod 14 is formed in a hollow shape. In this case, the lead wire 613 and the sensor wire 612 of the branch-type electrode module 61 pass through the inside of the spring tube 67 and then extend to the proximal end side, thereby extending to the inside of the push-pull rod 14. Then, they extend further to the proximal end side to be connected to the electrode connection part 15 at the proximal end of the case 11. Preferably, a storage space 111 is formed in the case 11. The physiological saline injection tube, which extends from the annular gap between the spring tube 67 and the outer sheath tube 41 to the proximal end side and extends into the case 11, and the sensor wire and lead wire of the central electrode 63 are stored in the storage space 111. Preferably, the storage space 111 is composed of the inner wall of the case 11 and a curved columnar body 112 (e.g., an L-shaped columnar body) protruding from the inner wall. The case 11 includes two pairs of storage spaces 111 facing each other in the diametric direction. The sensor wire and conductor of the central electrode 63 are housed in the storage space 111 on one side in the diametrical direction, and extend in a predetermined direction to be connected to the electrode connection part 15 at the proximal end of the case 11. The saline injection tube is housed in the storage space 111 on the other side in the diametrical direction, and extend in a predetermined direction to be connected to the saline tube connection part 16 at the proximal end of the case 11.

[0034] When it is necessary to rotate the branch-type electrode module 61, a user can rotate the branch-type electrode module 61 by rotating the rotating sphere 13. Since the rotating sphere 13 and the push-pull rod 14 are connected to rotate together, the rotation of the rotating sphere 13 causes the push-pull rod 14 to rotate together with the rotating sphere 13. The rotation of the push-pull rod 14 drives the inner tube module 60 (the spring tube 67, the second connecting part 68, the branch-type electrode module 61, the support part 62, the rotating part 66, the first connecting part 65, the central electrode 63 connected to the first connecting part 65, and the lubrication cover 64) to rotate.

[0035] In this embodiment, the push-pull rod 14 can be moved axially to drive the branch-type electrode module 61 to move axially relative to the support part 62 and the rotating part 66. Thereby, the distal end of the probe 611 of the branch-type electrode module 61 can be advanced out of or advanced into the rotating part 66.

[0036] Specifically, the handle 10 further includes a slide module. The slide module includes a slide button 17 slidably connected to the case 11, a fixed part 18 rotatably connected to the slide button 17, and a push-pull rod 14. A strip-shaped hole 113 is formed in the side wall of the case 11, penetrating the case 11 in the diametrical direction, and the slide button 17 is attached in the strip-shaped hole 113. A part of the slide button 17 protrudes from the outer surface of the case 11, so that a user can easily operate the slide button 17, and another part of the slide button 17 is stored in the case 11. A storage recess 170 is formed in the other part of the slide button 17, which opens in the diametrical direction facing outward. The fixed part 18 is stored in the storage recess 170, and the end faces of the fixed part 18 abut against the wall surfaces at both ends of the storage recess 170 in the axial direction. The shape of the fixed part 18 is cylindrical, so that the fixed part 18 can rotate stably relative to the slide button 17. The proximal end of the push-pull rod 14 passes through the slide button 17 and the fixed part 18. The push-pull rod 14 is connected to the fixed part 18 by, for example, an interference fit. The push-pull rod 14 is connected to the slide button 17 in a clearance fit state, so that the push-pull rod 14 can move or rotate relative to the slide button 17. When the push-pull rod 14 rotates relative to the slide button 17, the movement of the slide button 17 is transmitted to the push-pull rod 14 by the fixed part 18, and the push-pull rod 14 can drive the spring tube 67, the second connecting part 68, and the branch-type electrode module 61 to move in the axial direction.

[0037] Preferably, a non-circular hole 130, such as a square hole, an elliptical hole, etc., is formed in the center of the rotating sphere 13. The push-pull rod 14 inserted into the non-circular hole 130 of the rotating sphere 13 abuts against the inner wall of the non-circular hole 130. This ensures that the push-pull rod 14 moves in the axial direction of the rotating sphere 13 and that the push-pull rod 14 and the rotating sphere 13 rotate together.

[0038] When the ablation catheter of this embodiment is used, the distal end of the branch-type electrode module 61 is housed in the rotating part 66. The distal end of the catheter module 20 (i.e., the central electrode 63) is inserted into a predetermined tumor by puncturing the skin. Next, when the rotating sphere 13 is rotated, the exposed parts (distal end parts) of the four first recesses 622 of the support part 62 can be used to grasp the rotation direction of the rotating sphere 13, so that the first recesses 622 can avoid blood vessels. After the rotating sphere 13 is rotated to an appropriate position, the central electrode 63 is inserted into the lesion site of the patient, and the slide button 17 is moved to push out the branch-type electrode module 61 in the rotating part 66. This makes it possible to obtain the situation around the central electrode 63. For example, the progress of ablation can be grasped by obtaining temperature and resistance. Since the first recesses 622 avoid blood vessels, the branch-type electrodes 610 of the branch-type electrode module 61 delivered from the rotating part 66 can avoid blood vessels, preventing the branch-type electrodes 610 from puncturing blood vessels.

[0039] Please refer to Figures 5 and 6. As shown in Figures 5 and 6, a multipolar radiofrequency ablation catheter 200 according to another embodiment of the present invention is similar to the multipolar radiofrequency ablation catheter 100 of Figures 1 to 4. The difference between the two is that the branch-type electrode module 61 of the multipolar radiofrequency ablation catheter 200 is rotated in a different manner.

[0040] Specifically, the handle 210 of the multipolar radiofrequency ablation catheter 200 of this embodiment does not include the end cap 12 and the rotating sphere 13 of the embodiment of Figures 1 to 4. In this embodiment, the end cap 212 of the handle 210 only includes a hollow cylindrical female connecting part 220 attached on the male connecting part 110 so as to cover the outer circumferential surface of the male connecting part 110, and a cone-shaped part 223 connected to the distal end of the female connecting part 220. In this embodiment, the outer sheath tube 41 is inserted into the cone-shaped part 223 and connected to the cone-shaped part 223.

[0041] The male coupling part 110 and the female coupling part 220 can be rotatably coupled by the following structure: an annular recess 114 is formed on the outer circumferential surface of the male coupling part 110, and one or more arc-shaped protrusions 224 or one annular protrusion 224 is formed on the inner wall of the female coupling part 220, and the protrusion 224 is rotatably coupled within the recess 114. In other embodiments, the male coupling part 110 and the female coupling part 220 can also be rotatably coupled by other structures.

[0042] The push-pull rod 14 of this embodiment does not have to be coupled to the slide button 17 in a clearance fit state. For example, the push-pull rod 14 can be connected to the slide button 17 or can be coupled to the slide button 17 in an interference fit state.

[0043] When using the multipolar radiofrequency ablation catheter 300, a user holds the end cap 212 with one hand and rotates the case 11 of the handle 210 with the other hand. Since the push-pull rod 14 is connected to the slide button 17, when the case 11 is rotated, the push-pull rod 14 rotates with the case 11, and the branch-type electrode module 61 can be rotated by the spring tube 67 and the second connecting part 68. When it is necessary to move the branch-type electrode module 61, the distal end of the probe 611 of the branch-type electrode module 61 can be advanced out of or advanced into the rotating part 66 by pushing or pulling the slide button 17.

[0044] Please refer to Figures 7 to 9. As shown in Figures 7 to 9, a multipolar radiofrequency ablation catheter 300 according to another embodiment of the present invention is similar to the multipolar radiofrequency ablation catheter 200 of Figures 5 to 6. The difference between the two is that the slide module of the multipolar radiofrequency ablation catheter 300 of this embodiment is different.

[0045] Specifically, in this embodiment, the sliding module of the multipolar radiofrequency ablation catheter 300 includes a plurality of sliding parts 330, each of which can move axially relative to the case 311. Each branch-type electrode 610 of the branch-type electrode module 61 is connected to a corresponding sliding part 330 and can move axially relative to the sliding part 330.

[0046] When the multipolar radiofrequency ablation catheter 300 of this embodiment is used, the axial movement of each branch-type electrode 610 is controlled separately, that is, each branch-type electrode 610 can be moved to a suitable lesion area by controlling the sliding member 330 separately according to actual needs, thereby improving the accuracy of determining the position of each branch-type electrode 610 and improving the accuracy of detecting the ablation result.

[0047] The slide part 330 includes a slide rod 331 slidably attached inside the case 311, and a slide button 317 connected to the slide rod 331 so as to protrude from the outer surface of the case 311. The branch-type electrode 610 is connected to a predetermined slide rod 331. The slide button 317 is slidably attached to the case 311.

[0048] The handle 310 further includes at least one support base 340 housed in the case 311. In this embodiment, the support base 340 is formed in a substantially disk shape, and the outer circumferential surface of the support base 340 abuts and is connected to the inner circumferential surface of the case 311. The slide bar 331 penetrates the at least one support base 340 in the axial direction, so that the at least one support base 340 is slidably mounted on the slide bar 331. In this embodiment, the handle 310 includes three support bases 340 arranged at intervals in the axial direction. The slide bar 331 is slidably mounted on the central support base 340 and the far end support base 340. The support base 340 is mounted to guide the movement of the slide part 330 and ensure that the slide part 330 moves in the axial direction without displacement. In addition, the slide part 330 supports the case 311, thereby preventing the case 311 from being deformed.

[0049] At least one second recess 341 is formed on the outer circumferential surface of the support base 340, penetrating the support base 340 in the axial direction. The second recess 341 is coupled to the inner wall of the case 311 to form a storage space 342. In this embodiment, two second recesses 341 facing each other in the diametric direction are formed on the outer circumferential surface of each support base 340. The saline injection tube passes through the inside of the through hole 620 of the support part 62, extends to the proximal end side, passes through the connecting tube 42 and the outer sheath tube 41 of the outer tube module 40, and extends to the inside of the case 311. The saline injection tube then passes through the storage space 342 formed by each support base 340 and the case 311 and located on one side in the diametric direction, and is connected to the saline pipe connection part 16 at the proximal end of the case 311. The sensor wire and conductor of the central electrode 63 pass through the inside of the through hole 620 of the support part 62, then extend to the proximal end side, and pass through the connecting tube 42 and the outer sheath tube 41 of the outer tube module 40, then extend to the inside of the case 311. Then, the sensor wire and conductor of the central electrode 63 pass through a storage space 342 formed by each support base 340 and the case 311 and located on the other side in the diameter direction, and are connected to the electrode connection part 15 at the proximal end of the case 311. The formation of the storage space 342 makes it possible to prevent the wires of the multipolar radiofrequency ablation catheter 300 from becoming entangled.

[0050] A first storage hole 332 is formed in the slide rod 331, penetrating the slide rod 331 in the axial direction. The probe 611 of each branch-type electrode 610 passes through the connecting tube 42 and the outer sheath tube 41 of the outer tube module 40 from the rotating part 66, in order, and then extends to the inside of the case 311. Then, the probe 611 of each branch-type electrode 610 extends to the first storage hole 322 of the slide rod 331, thereby being connected to the slide rod 331. The sensor wire 612 and the conductor 613 of each branch-type electrode 610 extend from the first storage hole 332 to the proximal end, pass through the support base 340 at the proximal end, and are connected to the electrode connection part 15 at the proximal end of the case 311. The formation of the first storage hole 332 and the support base 340 at the proximal end can prevent the wires of the multipolar radiofrequency ablation catheter 300 from getting tangled.

[0051] The case 311 includes a plurality of strip-shaped holes 313 formed at intervals on its outer circumferential surface. Each strip-shaped hole 313 is formed to penetrate the case 311 in the radial direction, and the longitudinal direction of each strip-shaped hole 313 coincides with the longitudinal direction of the case 311 (the axial direction in this embodiment). The slide button 317 of each slide part 330 protrudes from the outer surface of the case 311 through a corresponding strip-shaped hole 313. The strip-shaped hole 313 determines the position of the slide button 317, so that the slide button 317 can smoothly slide in the axial direction within the strip-shaped hole 313 and can prevent the slide button 317 from shifting.

[0052] In this embodiment, the radially rear wall of the sliding button 317 of each sliding part 330 is vertically connected to the sliding bar 331. Preferably, the sliding button 317 is disposed close to the proximal end of a given sliding bar 331. An avoidance recess 318 is formed on the radially rear wall of the sliding button 317. The avoidance recess 318 is formed on one side of the sliding button close to the proximal end of the sliding bar 331, thereby making it possible to avoid the sliding part 330 affecting the surrounding parts and / or tracks when sliding.

[0053] The sliding parts 330 further include a voussoir 319 disposed close to the far end of a given sliding rod 331 and formed on one side of the sliding rod 331 opposite the sliding button 317. The sliding rod 331, the sliding button 317 and the voussoir 319 form an approximately T-shaped structure. Specifically, the voussoir 319 tapers (i.e., becomes thinner) from the side wall of the sliding rod 331 toward the center of the sliding module (the center of the four sliding parts 330 in this embodiment, i.e., the center of the handle 310). The formation of the voussoir 319 ensures that the sliding parts 330 slide stably in the axial direction and prevents the sliding parts 330 from affecting each other adjacent to each other.

[0054] The inner tube module 360 ​​of the multipolar radiofrequency ablation catheter 300 of this embodiment further includes a support rod 361 housed in the outer tube module 40, and the support rod 361 includes a plurality of second housing holes 362 penetrating the support rod 361 in the axial direction. The support rod 361 includes a second housing hole 362 formed in the center of the support rod 361 and a plurality of second housing holes 362 formed around the second housing hole 362. Each branch-type electrode 610 is inserted into a predetermined second housing hole 362 formed around the periphery. The physiological saline injection tube and the sensor wire and conductor of the central electrode 63 are inserted into the second housing hole 362 in the center. As described above, the spring tube 67 and the second connecting part 68 are not attached to the inner tube module 360 ​​of this embodiment. In this embodiment, the second housing hole 362 is formed, which can prevent the wires of the multipolar radiofrequency ablation catheter 300 from getting tangled.

[0055] When using the multipolar radiofrequency ablation catheter, a user holds the end cap 212 with one hand and rotates the case 311 of the handle 310 with the other hand. Since the branch-type electrode module 61 is connected to the slide module of the handle 310, when the case 311 is rotated, the branch-type electrode module 61 rotates with the case 311. When it is necessary to move one or more branch-type electrodes 610 of the branch-type electrode module 61, the distal end of the probe 611 of the specified branch-type electrode 610 can be advanced out of or into the rotating part 66 by pushing or pulling the specified one or more slide modules.

[0056] 10 is a diagram showing an application example of a method for reminding RF operation by a multipolar radio frequency ablation catheter according to an embodiment of the present invention. The method for reminding RF operation by a multipolar radio frequency ablation catheter according to the present invention can be implemented by an RF host 101 in FIG. 10 or a computer terminal connected to the RF host 101 to transmit and receive data.

[0057] 10, an RF host 101 is connected to a syringe pump 102, a neutral electrode 103, and a multipolar radiofrequency ablation catheter (the structure of which is as shown in FIGS. 1 to 9). A display panel (not shown) is attached to the RF host 101.

[0058] Before performing the operation, first, the tip of the multipolar radiofrequency ablation catheter 104, which generates and outputs RF energy, and the extension tube (not shown) of the syringe pump 102 are inserted into the operation target 105 (e.g., a tissue mass with an abnormality). Next, the neutral electrode 103 is abutted against the surface of the operation target 105. In this case, a circuit is formed in which an RF current flows through the multipolar radiofrequency ablation catheter 104, the operation target 105, and the neutral electrode 103.

[0059] When performing an operation, the RF host 101 outputs RF energy to the operation site by controlling the discharge of the multipolar radiofrequency ablation catheter 104. This allows RF operation to be performed on the operation site. Next, an injection operation can be performed on the operation target by the extension tube of the syringe pump 102. For example, the resistance and temperature of the operation site can be adjusted by injecting saline into the operation site.

[0060] The RF host 101 continuously acquires physical property data of the operation position of the RF operation object by a plurality of probes attached to the tip of the multipolar radiofrequency ablation catheter 104. The RF operation object's physical property field is acquired by the continuously acquired physical property data. According to the initial range of the target operation area of ​​the RF operation object and the change of the physical property data in the physical property field, the change of the range of the operation waiting area in the target operation area is acquired, and the change of the range is displayed as a three-dimensional model.

[0061] 11 is a flow chart showing a method for RF operation reminder by a multi-polar radiofrequency ablation catheter according to an embodiment of the present invention. The method can be implemented by the RF host 101 in FIG. 10 or by a computer terminal. For ease of explanation, the method is hereinafter taken as an example to be implemented by the RF host 101. As shown in FIG. 11, the method includes the following steps:

[0062] In step S301, the physical characteristic data of the operation position of the RF operation target is continuously obtained by multiple probes on the multi-polar radio frequency ablation catheter.

[0063] The specific structure of the multipolar radiofrequency ablation catheter according to this embodiment can be seen in Figures 1 to 9. The position of the branch-type electrode of the multipolar radiofrequency ablation catheter can be adjusted. That is, the convenience of detecting physical property data can be improved by adjusting the position of the probe.

[0064] Specifically, when the RF host controls the multipolar radiofrequency ablation catheter to perform RF manipulation, the probe attached around the central electrode of the multipolar radiofrequency ablation catheter can detect physical property data at various positions of the manipulation site at any time by inserting the central electrode into or contacting the manipulation site of the RF manipulation target. The physical property data is specifically temperature or resistance, and the present invention can also obtain temperature and resistance simultaneously.

[0065] The RF manipulation target can be any object, target, etc. that can be subjected to RF manipulation, such as RF ablation. For example, when the RF manipulation is RF ablation, the RF manipulation target can be tissue of a living organism, and the manipulation location can be abnormal tissue of the living organism.

[0066] In step S302, a physical property field of an RF manipulation target is obtained according to the continuously obtained physical property data.

[0067] The physical property data may include, but is not limited to, temperature data and resistance data. The physical property fields may include a temperature field and an impedance field.

[0068] The temperature field is a set of temperature values ​​of each point on the RF manipulation object, and represents the distribution of temperature values ​​located in space and time. It usually represents the function of the object's location in space coordinates and time, i.e., t=f(x, y, z, τ). x, y, and z represent the three Cartesian coordinate axes in space, and τ is the coordinate representing time. There are so many methods of calculating the temperature field in the prior art that the present invention will not describe them again.

[0069] Similarly, the resistance field is the set of resistance values ​​at each point on the RF target. The resistance field is a function of time and space coordinates, and represents the distribution of resistance values ​​located in space and time.

[0070] In step S303, the change in the range of the operation waiting area in the target operation area is obtained according to the initial range of the target operation area of ​​the RF operation object and the change in the physical property data in the physical property field, and the change in the range is displayed as a three-dimensional model.

[0071] The target operation area refers to the area in which the current RF operation is performed on the RF operation target. The initial range of the target operation area can be obtained by performing X-ray scanning or the like.

[0072] The standby area refers to the area where the current RF operation is not performed or the effect of RF operation does not meet the standard. RF operation needs to be performed again in the standby area.

[0073] The value of the physical property data of each point in the physical property field changes as the RF operation is performed. The value of the physical property data represents the state of each step in which the RF operation is performed. Specifically, when the value of the physical property data reaches a preset threshold, it represents that the RF operation is finished (i.e., has a predetermined effect), and when the value of the physical property data is smaller than the preset threshold, it represents that the RF operation is not yet finished (i.e., does not have a predetermined effect) or has not yet started, and the area where the RF operation is not yet finished and the area where the RF operation is not yet started are waiting areas. That is, the range of the waiting area can be determined by the value of the physical property data in the physical property field. The range of the waiting area changes as the measured value of each point in the physical property field changes, and the trend of the change increases as the time of the RF operation passes, and the range of the waiting area becomes smaller.

[0074] By using preset three-dimensional model display software, the range of the operation waiting area can be displayed on the display interface of the RF host as changing with the target operation area, so that the RF operator can intuitively grasp the situation of the RF work.

[0075] In an embodiment of the present invention, a plurality of physical characteristic data of RF operation positions are obtained by a plurality of probes on a multi-polar radiofrequency ablation catheter at any time, and a physical characteristic field of an RF operation object is obtained by the physical characteristic data. Then, according to the initial range of the target operation area of ​​the RF operation object and the change of the physical characteristic data in the physical characteristic field, the change of the range of the operation waiting area in the target operation area is obtained, and the change of the range is displayed as a three-dimensional model. The change of the range of the operation waiting area is made into visual information to remind, so that the content of the reminder information is enriched, the intuitiveness of the reminder information is improved, and the accuracy and intelligence of determining the operation waiting area is improved. Therefore, the effectiveness of the reminder information can be improved, and the success rate and effect of RF operation can be improved.

[0076] 12 is a flow chart showing a method for RF operation reminder by a multi-polar radiofrequency ablation catheter according to another embodiment of the present invention. The method can be implemented by the RF host 101 in FIG. 10 or by a computer terminal. For ease of explanation, the method is hereinafter taken as an example to be implemented by the RF host 101. As shown in FIG. 12, the method includes the following steps:

[0077] In step S501, resistance data of the operation position of the RF operation target is continuously obtained by multiple probes on the multipolar radio frequency ablation catheter.

[0078] In step S502, the resistance data acquired at any time is compared with a preset reference resistance range.

[0079] In step S503, if the resistance data includes at least one target resistance, reminder information is output to remind the user that the probe is inserted in a wrong position.

[0080] The specific structure of the multipolar radio frequency ablation catheter of this embodiment is as shown in Figures 1 to 9. The resistance value of normal biological tissue is different from that of abnormal biological tissue. A reference resistance database is stored in the RF host. The reference resistance database stores reference resistance ranges corresponding to biological tissues with various abnormalities (e.g., tumors, inflammation, malignant transformation of tumors, etc.). The reference resistance range corresponding to the type of abnormality of the current RF operation target can be detected in the reference resistance database. The reference resistance database can also be deployed in a cloud.

[0081] The target resistance value is not within the reference resistance range. The resistance data obtained by multiple probes is compared with the detected reference resistance range. If at least one of the target resistances exists in the resistance data, it means that the probe does not completely cover the area that needs to be RF operated, and performing RF operation at the current position cannot achieve the desired effect. In this case, the display panel displays preset reminder information to remind the user that the probe is inserted in the wrong position.

[0082] The reminder information further includes position information of the probe detecting the target resistance, and the user can determine the moving direction of the probe according to the position information, and realize intelligent information reminder.

[0083] After outputting the reminder information, if a predetermined time has elapsed, the process returns to step S501 and repeats the steps until the target resistance does not exist in the resistance data, or step S501 can be performed again according to a control command generated when the user presses a preset real button or virtual button.

[0084] By adopting the reference resistance range, it can remind the user that the probe is inserted in the wrong position and guide the user to insert the probe, thereby realizing the intelligent information reminder and improving the probe insertion speed, and also reducing the RF operation time and improving the operation efficiency.

[0085] In step S504, if the target resistance does not exist in the resistance data, an initial range of the target operation area is obtained by scanning the RF operation object with an X-ray scanning device.

[0086] Specifically, when the target resistance does not exist in the acquired resistance data, that is, when the acquired resistance data values ​​are all within the range of the reference resistance, it is necessary to envelop the entire area of ​​the RF operation site with a probe. In this case, it is necessary to obtain a three-dimensional image of the target site by scanning the target site to be RF operated with an X-ray scanning device. Next, image recognition is performed on the three-dimensional image to obtain the coordinates of the position of each probe in the three-dimensional image. Next, the probe envelopment range is determined according to the coordinates of the positions, and the envelopment range is set as the initial range of the target operation area. The X-ray scanning device can be, for example, a CT (Computed Tomography) device.

[0087] In step S505, the resistance field of the RF manipulation target is obtained according to the resistance data obtained at any time.

[0088] Specifically, the resistance field is a set of resistance values ​​at each point on the RF manipulation target, which is a function of time and space coordinates and represents the distribution of resistance values ​​located in space and time.

[0089] In step S506, the change in range of the operation waiting area in the target operation area is obtained according to the initial range of the target operation area and the change in resistance data in the resistance field.

[0090] The standby operation area refers to an area where the current RF operation is not performed or the effect of the RF operation does not reach the standard, and the RF operation needs to be performed again on the standby operation area. The resistance data value of each point in the resistance field changes as the RF operation is performed. The resistance data value represents the state of each step in which the RF operation is performed. For example, when the resistance data value reaches a preset threshold, it represents that the effect of the RF operation reaches the preset effect, and when the resistance data value is smaller than the preset threshold, it represents that the RF operation has not yet ended or has not yet started. The area where the effect of the RF operation has not yet reached the preset effect and the area where the RF operation has not yet started are standby operation areas. That is, the range of the standby operation area can be determined by the resistance data value in the resistance field. The range of the standby operation area changes as the measured value of each point in the resistance field changes, and the trend of the change increases as the time of the RF operation passes, and the range of the standby operation area becomes smaller.

[0091] Specifically, the resistance data value of each point in the resistance field is compared with a preset threshold value (i.e., the preset resistance threshold value), and the boundary of the range of the operation waiting area is determined by the points where the resistance data value is greater than the preset resistance threshold value.

[0092] A fitting algorithm is used to find points where the resistance data value is greater than the preset threshold value, thereby obtaining the range of the preset effective area in the target operation area. The range and boundary of the standby operation area are obtained by comparing the initial range of the target operation area with the range of the preset effective area. The preset fitting algorithm can be, but is not limited to, the least square method or Matlab curve algorithm.

[0093] When the resistance data value of the operating position is greater than the preset threshold value, the range of the radiation airspace of the operating position is determined according to the resistance data value of the operating position, the measurement angle of the probe corresponding to the operating position, and the preset radiation distance, and the boundary of the operation waiting area is determined according to the range of the radiation airspace.

[0094] As is well known, RF energy output by a central electrode of a multipolar radiofrequency ablation catheter is radiated into the tissue of a living body along a predetermined direction, so that the resistance change comprises a radiation range.

[0095] The measurement angle of the probe refers to the insertion angle of the probe inserted into the resistor of one operating position or the abutment angle of the probe abutting on the operating position. The measurement angle can determine the direction of radiation. The resistance data value of the operating position, the radiation direction and the preset radiation distance can determine the range of the radiation area of ​​the operating position, that is, the depth of the boundary of the range of the area having the preset effect can be determined.

[0096] In step S507, the change in range is displayed as a three-dimensional model.

[0097] Specifically, using a three-dimensional image of the target operation area acquired by scanning with an X-ray scanning device and the change in the range of the operation waiting area of ​​the target operation area, a three-dimensional model of the change in the range of the operation waiting airspace is constructed by a Marching Cubes calculation method using surface rendering or a calculation method such as ray-casting, shear-warp, frequency domain and splatting using volume rendering, and the model is displayed by a pre-set display interface.

[0098] The Marching Cubes calculation method regards multiple two-dimensional slice data as a three-dimensional data field, obtains isosurfaces of the three-dimensional data, and constructs a surface mesh of the three-dimensional model using the three-dimensional model. This constructs a three-dimensional model. The volume rendering calculation method converts discrete data in three-dimensional space directly into the final stereoscopic image, without the need to generate intermediate geometric primitives. It assigns an opaque body to each voxel and considers the effect of each voxel on the transparency, emission, and reflection of light rays.

[0099] In another embodiment of the present invention, when the temperature data of the operation position of the RF operation object is obtained continuously by a plurality of probes, the method includes the following steps.

[0100] In step S701, temperature data of the operation position of the RF operation target is continuously obtained by a plurality of probes.

[0101] In step S702, an initial extent of the target operation area is obtained by scanning the RF operation object with an X-ray scanning device.

[0102] In step S703, the temperature field of the RF manipulation object is obtained according to the continuously acquired temperature data.

[0103] In step S704, the change in the range of the standby area in the target operating area is obtained according to the initial range of the target operating area and the change in the temperature data in the temperature field.

[0104] In step S705, the change in range is displayed as a three-dimensional model.

[0105] The steps S701 to S705 are similar to the steps S501 to S504 and S507, and the description of the steps S501 to S504 and S507 can be referred to, so that they will not be described again here.

[0106] In another embodiment of the present invention, when the temperature data and the resistance data of the operation position of the RF operation object are obtained continuously by a plurality of probes, the method includes the following steps.

[0107] In step S801, resistance data and temperature data of the operation position of the RF operation target are continuously obtained by a plurality of probes.

[0108] In step S802, the resistance data acquired at any time is compared with a preset reference resistance range.

[0109] In step S803, if the resistance data includes at least one target resistance, reminder information is output to remind the user that the probe is inserted in a wrong position.

[0110] In step S804, if the target resistance does not exist in the resistance data, an initial extent of the target operation area is obtained by scanning the RF operation object with an X-ray scanning device.

[0111] In step S805, the resistance field and temperature field of the RF manipulation object are obtained according to the continuously obtained resistance data and temperature data.

[0112] In step S806, a change in the range of an operation waiting area in the target operation area is obtained according to the initial range of the target operation area, the change in resistance data in the resistance field, and the change in temperature data in the temperature field.

[0113] In step S807, the change in range is displayed as a three-dimensional model.

[0114] The steps S801 to S805 and S807 are similar to the steps S501 to S505 and S507, and the description of the steps S501 to S505 and S507 can be referred to, so that they will not be described again here.

[0115] Step S805 specifically includes the steps of: comparing the temperature data value of each point in the temperature field with a preset temperature threshold, and determining a first boundary of the standby area according to the points where the temperature data value is greater than the preset temperature threshold; and after the preset time has elapsed, comparing the resistance data value of each point in the resistance field with a preset resistance threshold, and modifying the first boundary of the standby area according to the points where the resistance data value is greater than the preset resistance threshold to obtain a second boundary, and determining the second boundary as the boundary of the standby area.

[0116] According to the point where the resistance data value is greater than the preset resistance threshold, the first boundary of the standby area is modified to obtain a second boundary. When the resistance data value of a point is greater than the preset resistance threshold but the temperature data value is equal to or less than the preset temperature threshold, the resistance data is taken as the reference, and the position corresponding to the point is taken as the preset effective point.

[0117] As described above, the first boundary is determined by the temperature field, and then the first boundary is modified by the resistance field, so that a complementary effect is obtained and the final boundary can be determined more accurately.

[0118] The method further includes a step of periodically determining a unit change amount of the operation waiting area according to a change in the range of the operation waiting area, and a step of determining a remaining time required for the current RF operation to end according to the unit change amount and a current volume of the operation waiting area, and displaying the remaining time on a display interface as reminder information.

[0119] Specifically, first, a period is determined according to a preset time. After the preset time has elapsed, the change in the area of ​​the standby zone is divided by the time during which the RF operation is performed to obtain the unit change in the standby zone. For example, the volume of the standby zone that decreases per second is obtained. Next, the remaining time required for the current RF operation to end is obtained by dividing the current volume of the standby zone by the unit change.

[0120] The current volume of the waiting area is obtained by subtracting the unit change amount of the waiting area from the initial volume of the target operating area. The initial volume of the target operating area is determined in step S504, that is, determined by the three-dimensional image of the target operating area obtained by scanning with an X-ray scanning device.

[0121] As described above, by being reminded of the remaining time until the current RF operation is completed, the user can grasp the progress of the RF operation, and the intelligence of the information reminder can be further improved.

[0122] In an embodiment of the present invention, a plurality of physical characteristic data of RF operation positions are obtained by a plurality of probes on a multi-polar radiofrequency ablation catheter at any time, and a physical characteristic field of an RF operation object is obtained by the physical characteristic data. Then, according to the initial range of the target operation area of ​​the RF operation object and the change of the physical characteristic data in the physical characteristic field, the change of the range of the operation waiting area in the target operation area is obtained, and the change of the range is displayed as a three-dimensional model. The change of the range of the operation waiting area is made into visual information to remind, so that the content of the reminder information is enriched, the intuitiveness of the reminder information is improved, and the accuracy and intelligence of determining the operation waiting area is improved. Therefore, the effectiveness of the reminder information can be improved, and the success rate and effect of RF operation can be improved.

[0123] Referring to Fig. 13, Fig. 13 is a diagram showing the structure of an RF-operated reminder device according to an embodiment of the present invention. For ease of explanation, only the matters related to this embodiment will be described in the following embodiment. The RF-operated reminder device can be a computer terminal or a software module installed in a computer terminal. As shown in Fig. 13, the RF-operated reminder device includes an acquisition module 601, a processing module 602 and a display module 603.

[0124] The acquisition module 601 continuously acquires physical property data of the operation position of the RF operation target by multiple probes on the multipolar radio frequency ablation catheter.

[0125] The processing module 602 acquires the physical property field of the RF manipulation object according to the acquired physical property data at any time.

[0126] The processing module 602 obtains the initial range of the target operation area of ​​the RF operation target and the change in the range of the operation waiting area in the target operation area according to the change in the physical characteristic data in the physical characteristic field.

[0127] The display module 603 displays the change in range as a three-dimensional model.

[0128] The processing module 602 compares the value of the physical property data of each point in the physical property field with a preset threshold, and determines the boundary of the range of the waiting area by the points whose value of the physical property data is greater than the preset threshold.

[0129] When the value of the physical characteristic data of the operation position is greater than the preset threshold, the processing module 602 determines the range of the radiation area of ​​the operation position according to the value of the physical characteristic data of the operation position, the measurement angle of the probe corresponding to the operation position, and the preset radiation distance, and the value of the physical characteristic data in the radiation area is greater than the preset threshold. The processing module 602 also determines the boundary of the operation waiting area according to the range of the radiation area.

[0130] The physical property data includes temperature data and / or resistance data, and the physical property field includes a temperature field and / or a resistance field.

[0131] When the physical property data includes temperature data and resistance data, and the physical property field includes a temperature field and a resistance field, the processing module 602 compares the value of the temperature data at each point in the temperature field with a preset temperature threshold, and determines a first boundary of the operation waiting area according to the point where the value of the temperature data is greater than the preset temperature threshold.

[0132] After the preset time has elapsed, the resistance data value of each point in the resistance field is compared with the preset resistance threshold, and a second boundary is obtained by modifying the first boundary of the operation waiting area according to the points where the resistance data value is greater than the preset resistance threshold, and the second boundary is determined as the boundary of the operation waiting area.

[0133] The processing module 602 periodically determines a unit change amount of the holding area according to a change in the range of the holding area, and determines the residual time required for the current RF operation to end according to the unit change amount and the current volume of the holding area.

[0134] The display module 603 displays the remaining time as reminder information on a display interface.

[0135] When the physical characteristic data includes resistance data, the processing module 602 compares the acquired resistance data with a preset reference resistance range, and when the resistance data includes at least one target resistance, the display module 603 outputs reminder information to remind the user that the probe is inserted in the wrong position and the target resistance value is not within the reference resistance range.

[0136] If the target resistance does not exist in the resistance data, a step of acquiring a physical property field of the RF manipulation target according to the continuously acquired physical property data is performed.

[0137] The processing module 602 obtains an initial extent of the target scanning area by scanning the RF scanning object with an X-ray scanning device.

[0138] The specific process by which each module achieves a specific function can be referred to in the embodiments of FIG. 11 and FIG. 12, and will not be described again here.

[0139] In an embodiment of the present invention, a plurality of physical characteristic data of RF operation positions are obtained by a plurality of probes on a multi-polar radiofrequency ablation catheter at any time, and a physical characteristic field of an RF operation object is obtained by the physical characteristic data. Then, according to the initial range of the target operation area of ​​the RF operation object and the change of the physical characteristic data in the physical characteristic field, the change of the range of the operation waiting area in the target operation area is obtained, and the change of the range is displayed as a three-dimensional model. The change of the range of the operation waiting area is made into visual information to remind, so that the content of the reminder information is enriched, the intuitiveness of the reminder information is improved, and the accuracy and intelligence of determining the operation waiting area is improved. Therefore, the effectiveness of the reminder information can be improved, and the success rate and effect of RF operation can be improved.

[0140] 14 is a structural diagram of an RF operation reminder system according to an embodiment of the present invention. As shown in FIG. 14, the RF operation reminder system includes an RF host 141 and a multi-polar radiofrequency ablation catheter 142.

[0141] The RF host 141 performs each step in the method for RF operation reminder using a multipolar radiofrequency ablation catheter according to the above-described embodiments (eg, the embodiments of FIGS. 11 and 12).

[0142] The structure of the multipolar radiofrequency ablation catheter 142 may refer to the structure described in the embodiment of Fig. 1 to Fig. 9. Specifically, the multipolar radiofrequency ablation catheter 142 includes a handle having a proximal end and a distal end, an outer tube module having a proximal end and a distal end, and an inner tube module having a proximal end and a distal end. The proximal end of the outer tube module is connected to the distal end of the handle, the proximal end of the inner tube module is connected to the distal end of the handle, the inner tube module includes a branch-type electrode module, the branch-type electrode module rotates relative to the outer tube module by driving the handle, the branch-type electrode module includes a plurality of branch-type electrodes arranged at intervals on its circumferential surface, and the branch-type electrode includes the probe.

[0143] The specific process by which the RF host 141 realizes a specified function can be referred to in the description of the above embodiment, and the structure of the multi-polar radio frequency ablation catheter 142 can be referred to in the structure described in the embodiment of Figures 1 to 9, so it will not be described again here.

[0144] Please refer to FIG. 15, which is a diagram showing a hardware structure of an electronic device according to an embodiment of the present invention.

[0145] In the present embodiment, the electronic device may be any one of non-portable or portable computer systems and have wireless or wired communication. Specifically, the electronic device may be a desktop computer, a server, a mobile phone or smartphone (e.g., iPhone TM, Android TM-based phone), a portable gaming console (e.g., Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), a laptop computer, a PDA, a portable internet device, a portable medical device, a smart camera, a music player and a data storage device, and other portable devices such as a watch, a headset, a pendant, an earphone, etc. The electronic device may also be other wearable devices (e.g., electronic glasses, electronic clothing, electronic bracelets, electronic necklaces, and helmet mounted displays (HMDs)).

[0146] As shown in FIG. 15, the electronic device 1 includes a control circuit, and the control circuit includes a memory and processing circuit 3. The memory and processing circuit 3 may include a memory device, such as a hard disk drive memory device, a non-volatile memory device (e.g., a programmable non-erasable memory device constituting a flash memory or a solid state disk), a volatile memory device (e.g., a static random-access memory or a dynamic random access memory), etc., but the present invention is not limited thereto. The processing circuit in the memory and processing circuit 3 may control the operation of the electronic device 1. The processing circuit may be composed of one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, etc.

[0147] The storage and processing circuit 3 can execute software in the electronic device 1. For example, it can execute an Internet browsing application, a VOIP (Voice over Internet Protocol) telephone calling application, an email application, a media playback application, an operating system function, etc. The software can be responsible for a certain control operation. For example, it can control, but is not limited to, taking a picture with a camera, measuring ambient light with an ambient light sensor, detecting the approach of a component with a proximity sensor, displaying certain information with a status display device such as a status indicator lamp with a diode, detecting a touch event with a touch sensor, displaying information with a plurality of display devices (e.g., each layer), operations related to wireless communication functions, operations related to receiving and forming audio signals, operations related to receiving and forming data related to a button press event, and other functions of the electronic device 1.

[0148] The storage device stores executable program code. A processing device electrically connected to the storage device can execute the RF operation reminder method using the multipolar radiofrequency ablation catheter according to the embodiment by using the executable program code stored in the storage device. The processing device is electrically connected to the multipolar radiofrequency ablation catheter according to the embodiment in Figures 1 to 9 by a data line.

[0149] The executable program code may include each module in the RF-operated reminder device according to the embodiment of Fig. 13. For example, it may include an acquisition module 601, a processing module 602, and a display module 603. The process of performing a specific function by each module may refer to the description of Fig. 13, and will not be described again here.

[0150] The electronic device 1 further includes an input / output circuit 2. The input / output circuit 2 is responsible for inputting and outputting data of the electronic device 1. That is, the input / output circuit 2 is responsible for the electronic device 1 receiving data from an external device and the electronic device 1 transmitting data to an external device. The input / output circuit 2 may further include a sensor 21. The sensor 21 may be an ambient light sensor, a proximity sensor based on light and capacitance, a touch sensor (e.g., a light touch sensor and / or a capacitive touch sensor. The touch sensor may be part of a touch display panel or the touch sensor and the touch display panel may operate separately), an acceleration sensor, or other sensors, etc.

[0151] The input / output circuit 2 may further include one or more display devices, for example, the display device 22. The display device 22 may be a liquid crystal display device, an organic light emitting diode display, an electronic ink display, a plasma display, a display device using other display technologies, or a combination of one or more thereof. (When the display device 22 is a touch display device) the display device 22 may include a touch sensor array. The touch sensor may be a capacitive touch sensor configured with an array of transparent touch sensor electrodes (e.g., indium tin oxide (ITO) electrodes), or a touch sensor configured with other touch technologies, for example, a sound wave touch control sensor, a pressure sensitive touch sensor, a resistive touch sensor, an optical touch sensor, etc., but the present invention is not limited thereto.

[0152] The electronic device 1 may further include an audio module 23. The audio module 23 may be responsible for audio input and audio output of the electronic device 1. The audio module 23 of the electronic device 1 may be a speaker, a microphone, a buzzer, a tone generator, or a module responsible for generating and detecting sound.

[0153] The communication circuit 24 is responsible for communication between the electronic device 1 and an external device. The communication circuit 24 may include an input / output interface circuit for analog and digital signals, and a wireless communication circuit for RF and / or optical signals. The wireless communication circuit in the communication circuit 24 may include an RF transceiver circuit, a power amplifier circuit, a low noise amplifier, a switch, a wave filter, and an antenna. The wireless communication circuit in the communication circuit 24 supports a Near Field Communication (NFC) circuit by transmitting / receiving a Near field coupled electromagnetic signal. For example, the communication circuit 24 may include a near field communication antenna and a near field communication transceiver. The communication circuit 24 may further include a cellular telephone transceiver and antenna, a wireless local area networks transceiver and antenna, etc.

[0154] The electronic device 1 may further include a battery, a power management circuit, and other input / output units 25. The input / output units 25 may include buttons, controllers, click wheels, scroll wheels, touch pads, miniature keyboards, keyboards, cameras, light emitting diodes, and other status indicators, etc.

[0155] A user can control the operation of the electronic device 1 by inputting commands to the input / output circuit 2, and can obtain status information or other information of the electronic device 1 through data output by the input / output circuit 2.

[0156] The present invention further provides a non-volatile computer readable storage medium, which is installed in the server according to the embodiment, and stores a computer program, which is executed by a processing device to implement the RF operation reminder method using a multipolar radiofrequency ablation catheter.

[0157] In the above embodiments, each embodiment represents a different emphasis, and the description of the other embodiments can be referred to for the parts not described in one embodiment.

[0158] As known to those skilled in the art, the modules, units and calculation steps according to the embodiments of the present invention can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether a certain function is implemented by hardware or software is determined by the application and design of technical matters. Those skilled in the art can implement a certain application in various ways, and the present invention is not limited thereto.

[0159] The apparatus and method according to the embodiments of the present invention can be implemented as follows. The apparatus embodiments are merely illustrative of the present invention. For example, the modules have been divided according to logical functions, but in actual applications, the modules can be divided according to other functions. For example, a plurality of modules can be combined, or a certain module can be integrated into a certain system, or some modules can be omitted, or some modules can be inoperative. The connections between the modules can be direct, communicative, indirect through a certain interface, device, or module, or electrically, or mechanically connected.

[0160] Each unit described as a separate component may be manufactured as a single unit. The components shown as a unit may not be physical units, which may be located at a given location or may be located in multiple network units. The objective of the present invention may be realized by using some or all of the units in practical applications.

[0161] Each functional unit according to each embodiment of the present invention may be integrated or individually integrated into one processing unit, or two or more functional units may be integrated into one unit. The integrated unit may be in the form of hardware or software.

[0162] When the integrated unit exists in a software state and the integrated unit is sold or used as a product, the integrated unit can be stored in a computer-readable storage medium and sold or used. All or some steps in the method according to the embodiment of the present invention can be implemented by controlling hardware with a computer program. The computer program is stored in a computer-readable storage medium, and each step of the method can be implemented by executing the computer program on a processing device. The computer program exists in the form of a computer program code, and the computer program code can exist in the form of source code, object code, executable file, intermediate file, etc. The computer-readable storage medium can include any device, recording medium, USB flash disk, mobile hard disk, magnetic disk, write disk, computer memory, ROM (Read-Only Memory), RAM (Random Access Memory), electric carrier signal, telecommunication signal, software distribution media, etc. that can store computer program code. It should be noted that the types of computer-readable storage media may be increased or decreased as required by local laws and practices, for example, computer-readable storage media may not include electrical carrier signals and telecommunication signals as required by local laws and practices.

[0163] The above examples are for explaining the matters of the present invention, but do not limit the scope of the present invention. Although the preferred embodiments of the present invention have been described in detail above, the above examples are merely illustrative of the present invention, and therefore, a person skilled in the art may make design changes, replacements, etc. to the technical matters of the above examples without departing from the scope of the present invention, and such design changes, replacements, etc. are naturally included in the present invention.

Claims

1. An electronic device, comprising: The electronic device includes a storage device and a processing device; The storage device stores executable program code; The processing device is electrically connected to the multipolar radiofrequency ablation catheter and the storage device, and uses executable program code stored in the storage device to perform each step of the RF operation reminder method using the multipolar radiofrequency ablation catheter; The method for RF operation reminder using a multipolar radio frequency ablation catheter includes: A plurality of probes on the multi-polar radio frequency ablation catheter continuously acquire physical characteristic data of an operation position of an RF operation target; acquiring a physical property field of the RF manipulation object according to the continuously acquired physical property data; obtaining a change in the range of an operation waiting area in the target operation area according to a change in the initial range of the target operation area of ​​the RF operation object and the value of the physical property data in the physical property field, and displaying the change in the range as a three-dimensional model; the multipolar radiofrequency ablation catheter includes a handle having a proximal end and a distal end, an outer tube module having a proximal end and a distal end, and an inner tube module having a proximal end and a distal end; a proximal end of the outer tube module is coupled to a distal end of the handle; a proximal end of the inner tube module is coupled to a distal end of the handle; the inner tube module includes a branched electrode module, the branched electrode module rotates relative to the outer tube module by driving the handle, the branched electrode module includes a plurality of branched electrodes spaced apart on its circumferential surface, the branched electrode includes the probe; The step of obtaining the initial range of the target operation area of ​​the RF operation object and the change in the range of the operation waiting area in the target operation area according to the change in the value of the physical characteristic data in the physical characteristic field includes: comparing the value of the physical property data for each point in the physical property field with a preset threshold value; determining a boundary of the range of the operation waiting area by points where the value of the physical characteristic data is greater than the preset threshold value.

2. The step of obtaining the initial range of the target operation area of ​​the RF operation object and the change in the range of the operation waiting area in the target operation area according to the change in the value of the physical characteristic data in the physical characteristic field includes: When the value of the physical characteristic data of the operation position is greater than the preset threshold, determining the range of the radiation area of ​​the operation position according to the value of the physical characteristic data of the operation position, the measurement angle of the probe corresponding to the operation position, and the preset radiation distance, wherein the value of the physical characteristic data in the radiation area is greater than the preset threshold; The electronic device according to claim 1 , further comprising: determining a boundary of the operation waiting area according to a range of the radiation area.

3. 3. The electronic device of claim 2, wherein the physical property data comprises temperature data and / or resistance data, and the physical property fields comprise a temperature field and / or a resistance field.

4. When the physical property data includes temperature data and resistance data, and the physical property field includes a temperature field and a resistance field, the step of obtaining the initial range of the target operation area of ​​the RF operation object and the change in the range of the operation waiting area in the target operation area according to the change in the value of the physical property data in the physical property field includes: comparing the temperature data value of each point in the temperature field with a preset temperature threshold, and determining a first boundary of the standby area according to the point where the temperature data value is greater than the preset temperature threshold; The electronic device of claim 3, further comprising a step of: after the preset time has elapsed, comparing the resistance data value of each point in the resistance field with a preset resistance threshold value, obtaining a second boundary by modifying a first boundary of the operation waiting area according to points whose resistance data value is greater than the preset resistance threshold value, and determining the second boundary as the boundary of the operation waiting area.

5. The processing device, by the executable program code, periodically determining a unit change amount of the operation waiting area according to a change in the range of the operation waiting area; The electronic device of claim 4, further comprising a step of determining a remaining time required for the current RF operation to end according to the unit change amount and the current volume of the operation waiting area, and displaying the remaining time on a display interface as reminder information.

6. When the physical property data includes resistance data, before performing the step of acquiring a physical property field of the RF manipulation target using the physical property data acquired at any time, the processing device executes the executable program code: comparing the resistance data acquired at regular intervals with a preset reference resistance range; If the resistance data includes at least one target resistance, outputting reminder information to remind a user that the probe is inserted in a wrong position and that the target resistance is not within the reference resistance range; The electronic device of claim 1 , further comprising: if the target resistance does not exist in the resistance data, performing a step of acquiring a physical property field of the RF operation target using the physical property data acquired at any time.

7. Before performing the step of acquiring a physical property field of the RF manipulation object using the continuously acquired physical property data, the processing device executes the executable program code to:

2. The electronic device of claim 1, further comprising the step of acquiring an initial extent of the target manipulation area by scanning the RF manipulation object with an X-ray scanning device.

8. The electronic device described in claim 1, characterized in that the inner tube module further includes a support part that supports the branch-type electrode module, the multiple branch-type electrodes of the branch-type electrode module are arranged at intervals on the outer peripheral surface of the support part, and the support part is rotatably connected to the outer tube module.

9. The electronic device of any one of claims 1 to 8, characterized in that the handle includes a case having a proximal end and a distal end and an end cap rotatably connected to the distal end of the case, the proximal end of the outer tube module is rotatably connected to the end cap, and the case rotates relative to the end cap, thereby driving the inner tube module to rotate relative to the outer tube module.

10. The electronic device of any one of claims 1 to 8, characterized in that the handle includes a case having a near end and a far end, an end cap connected to the far end of the case, a rotating sphere rotatably stored in the end cap, and a push-pull rod non-rotatably connected to the rotating sphere, wherein the near end of the outer tube module is connected to the end cap and the push-pull rod is connected to the inner tube module, and when the rotating sphere rotates relative to the end cap, the push-pull rod drives the inner tube module to rotate relative to the outer tube module.

11. An RF operation reminder system, comprising: The RF operation reminder system includes an RF host and a multipolar radiofrequency ablation catheter; The RF host performs each step of the method for reminding RF operation by the multipolar radiofrequency ablation catheter; The method for RF operation reminder using a multipolar radio frequency ablation catheter includes: A plurality of probes on the multi-polar radio frequency ablation catheter continuously acquire physical characteristic data of an operation position of an RF operation target; acquiring a physical property field of the RF manipulation object according to the continuously acquired physical property data; obtaining a change in the range of an operation waiting area in the target operation area according to a change in the initial range of the target operation area of ​​the RF operation object and the value of the physical property data in the physical property field, and displaying the change in the range as a three-dimensional model; the multipolar radiofrequency ablation catheter includes a handle having a proximal end and a distal end, an outer tube module having a proximal end and a distal end, and an inner tube module having a proximal end and a distal end; a proximal end of the outer tube module is coupled to a distal end of the handle; a proximal end of the inner tube module is coupled to a distal end of the handle; the inner tube module includes a branched electrode module, the branched electrode module rotates relative to the outer tube module by driving the handle, the branched electrode module includes a plurality of branched electrodes spaced apart on its circumferential surface, the branched electrode includes the probe; The step of obtaining the initial range of the target operation area of ​​the RF operation object and the change in the range of the operation waiting area in the target operation area according to the change in the value of the physical characteristic data in the physical characteristic field includes: comparing the value of the physical property data for each point in the physical property field with a preset threshold value; and determining a boundary of the range of the operation waiting area by a point where the value of the physical characteristic data is greater than the preset threshold value.

12. A non-volatile computer-readable storage medium having a computer program stored thereon, The computer program, when executed, causes a processing device to: A plurality of probes on the multipolar radio frequency ablation catheter continuously acquire physical property data of an operation position of an RF operation target; Acquiring a physical property field of the RF manipulation object according to the continuously acquired physical property data; obtaining a change in the range of an operation waiting area in the target operation area according to a change in the initial range of the target operation area of ​​the RF operation object and the value of the physical property data in the physical property field, and displaying the change in the range as a three-dimensional model; the multipolar radiofrequency ablation catheter includes a handle having a proximal end and a distal end, an outer tube module having a proximal end and a distal end, and an inner tube module having a proximal end and a distal end; a proximal end of the outer tube module is coupled to a distal end of the handle; a proximal end of the inner tube module is coupled to a distal end of the handle; the inner tube module includes a branched electrode module, the branched electrode module rotates relative to the outer tube module by driving the handle, the branched electrode module includes a plurality of branched electrodes spaced apart on its circumferential surface, the branched electrode includes the probe; Acquiring a change in the range of an operation waiting area in the target operation area according to a change in the initial range of the target operation area of ​​the RF operation object and a change in the value of the physical characteristic data in the physical characteristic field; comparing the value of the physical property data for each point in the physical property field with a preset threshold value; and determining a boundary of a range of the operation waiting area by a point where the value of the physical characteristic data is greater than the preset threshold.

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