Handle and ablation equipment

Abstract

The utility model is suitable for the technical field of medical equipment, and provides a handle and ablation equipment. The rotating piece is rotatably arranged in the shell; the driving part is arranged in the shell and is in transmission connection with the rotating part so as to drive the rotating part to rotate; the fixing piece is fixedly arranged in the shell, and a rotating joint is arranged on the fixing piece; the fixing piece and the driving piece are sequentially arranged along the axis of the rotating piece; according to the handle, the rotating piece and the fixing piece are arranged in the shell of the handle, the rotating piece drives the ultrasonic transducer in the ablation catheter to rotate, the fixing piece serves as a cable fixing base, and the rotating piece can drive the ultrasonic transducer in the ablation catheter to rotate instead of driving a cable in the handle to rotate; according to the ultrasonic transducer, the orientation of the ultrasonic transducer can be adjusted, meanwhile, the cable can not rotate along with the rotating piece, the situations of cable entanglement and the like are reduced, and the stability of signal transmission is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical equipment, and in particular, relates to a handle and an ablation device. Background Art

[0002] Renal artery denervation (RDN) refers to a method of destroying renal sympathetic afferent and efferent nerves through interventional therapy (such as through the femoral artery or radial artery), weakening renal and systemic sympathetic nerve activity, and thus lowering blood pressure.

[0003] RDN technology can be based on radiofrequency ablation, ultrasonic ablation, cryoablation, chemical ablation, etc., but currently radiofrequency ablation (rRDN) and ultrasonic ablation (uRDN) are the main methods. Among them, ultrasonic ablation has the advantages of good penetration and high energy controllability, and has certain technical advantages in the field of RDN.

[0004] After the ablation catheter enters the blood vessel and reaches the desired position, the orientation of the ultrasonic transducer often differs from the position of the target site. At this time, the orientation of the ultrasonic transducer needs to be adjusted to meet the needs. Currently, adjusting the orientation of the transducer usually involves rotating the entire ablation catheter. Since the inner diameter of the blood vessel is small and relatively tortuous, rotating the entire ablation catheter can easily damage the patient's blood vessel wall, increasing the risk of blood vessel damage. Utility Model Content

[0005] In response to the above problems, the present application provides a handle and an ablation device that can alleviate damage to blood vessels during the adjustment of the ultrasonic transducer.

[0006] In a first aspect, some embodiments of the present application provide a handle, comprising:

[0007] shell;

[0008] A rotating member is rotatably disposed in the housing;

[0009] A driving member is disposed in the housing and is transmission-connected to the rotating member to drive the rotating member to rotate;

[0010] A fixing member, fixedly arranged in the housing, and provided with a rotating joint;

[0011] The rotating member, the fixing member and the driving member are arranged in sequence along the axis of the rotating member.

[0012] In the technical solution of the present embodiment, a rotating part and a fixed part are respectively arranged in the outer shell of the handle, and a driving part for driving the rotating part is arranged. The ultrasonic transducer in the ablation catheter is driven to rotate by the rotating part, and the fixed part serves as a base for fixing the cable. This arrangement enables the rotating part to drive the ultrasonic transducer in the ablation catheter to rotate without driving the cable in the handle to rotate. It can adjust the direction of the ultrasonic transducer while preventing the cable from rotating with the rotating part. On the premise that the ultrasonic transducer can be directed toward the target site, the occurrence of cable entanglement and the like is reduced, and the stability of signal transmission is improved. The rotating part, the fixed part and the driving part are arranged in sequence along the axis of the rotating part to reduce the radial space occupied by the outer shell, thereby reducing the overall volume of the handle and making it easier for the user to hold it.

[0013] In some embodiments, a wire-passing channel is provided in the rotating member along the axial direction of the rotating member, and a communication base is accommodated in the wire-passing channel, and one end of the communication base is rotatably connected to the fixing member.

[0014] In the technical solution of this embodiment, the communication base is arranged in the rotating part, so that the cable of the ultrasonic transducer in the ablation catheter can be connected to the communication base, and the communication base can be stationary relative to the cable of the ultrasonic transducer, so that the communication base can always be connected to the cable of the ultrasonic transducer during the rotation of the rotating part, so as to improve the stability of transmission; the communication base is rotatably connected to the fixed part, so that the communication base can rotate relative to the fixed part, thereby reducing the impact of the rotation of the communication base on the fixed part.

[0015] In some embodiments, the communication base is provided with a first terminal, a second terminal and an output terminal, the output terminal is provided on the axis of the rotating member, and the output terminal is connected to both the first terminal and the second terminal;

[0016] A cable group is provided on the fixing member, and the cable group is connected to the rotating joint;

[0017] The handle also includes a control module, and the cable set is electrically connected to the control module.

[0018] In the technical solution of this embodiment, the communication base includes a first terminal and a second terminal, so that the communication base can be connected to different cables of the ultrasonic transducer respectively; the output terminal is arranged on the axis of the rotating part, so that the output terminal can always be connected to the cable group of the fixed part during the rotation of the communication base, so as to reduce the negative impact of the rotation of the communication base on the stability of signal transmission.

[0019] In some embodiments, an output gear and a driving gear are rotatably disposed in the housing, the output gear is transmission-connected to the rotating member, the driving gear is transmission-connected to the driving member, and the output gear is transmission-connected to the driving gear.

[0020] The technical solution of this embodiment provides some specific structures for the driving member to drive the rotating member to rotate, so that the output gear and the driving gear are respectively connected to the rotating member and the driving member, and the driving gear is transmission-connected to the output gear, so that the driving member can drive the rotating member to rotate. At the same time, by making the driving gear transmission-connected to the output gear, the power transmission path between the driving gear and the output gear can deviate from the axis of the rotating member, so as to reduce the negative impact of the power transmission between the driving gear and the output gear on the fixed member.

[0021] In some embodiments, a first transmission gear and a second transmission gear that are coaxially fixedly connected are further provided in the housing, the first transmission gear is transmission-connected to the driving gear, and the second transmission gear is transmission-connected to the output gear.

[0022] The technical solution of this embodiment provides some transmission connection methods between the output gear and the driving gear. By setting a first transmission gear and a second transmission gear that are coaxially fixedly connected, the power transmission path between the driving gear and the output gear deviates from the axis of the rotating part, thereby reducing the negative impact of the power transmission between the driving gear and the output gear on the fixed part.

[0023] In some embodiments, the ratio of the number of teeth of the first transmission gear and the second transmission gear is 1, and the ratio of the number of teeth of the output gear and the driving gear is greater than or equal to 1.

[0024] In the technical solution of this embodiment, the tooth ratio of the first transmission gear and the second transmission gear is 1, that is, the first transmission gear and the second transmission gear play the role of changing the power transmission path; the tooth ratio of the output gear and the driving gear is greater than or equal to 1, so that the rotation speed of the output gear can be less than or equal to the rotation speed of the driving gear, thereby reducing the rotation speed of the output gear, so that the staff can better control the direction of the ultrasonic transducer through the handle, thereby reducing the difficulty of operation.

[0025] In some embodiments, the drive member has an initial state;

[0026] The handle also includes a button movably arranged on the shell and a sensor arranged in the shell. The sensor is electrically connected to the driving member, and the sensor can be triggered by the button to put the driving member in an initial state.

[0027] In the technical solution of this embodiment, the driving member has an initial state, and buttons and sensors are provided on the handle so that the user can return the driving member to the initial state by pressing the buttons, so that the handle has a certain state when it is used next time.

[0028] In some embodiments, at least two magnetic members are spaced apart on the rotating member along the circumference of the rotating member;

[0029] A Hall sensor is also provided on one side of the rotating part.

[0030] The technical solution of this embodiment provides some structures that can monitor the rotation angle of the rotating part. Multiple magnetic parts are arranged on the circumferential side of the rotating part, and a Hall sensor is arranged next to the rotating part. The rotation angle of the rotating part is detected by the magnetic induction characteristics of the Hall sensor, so that the user can confirm the status of the rotating part.

[0031] In some embodiments, the housing is provided with an opening, and one end of the rotating member extends into the opening;

[0032] A first clamping piece connected to the shell is also arranged in the opening.

[0033] In the technical solution of this embodiment, an opening is provided on the outer shell, and a first clamping piece is provided in the opening, so that the ablation catheter can be detachably clamped on the outer shell through the first clamping piece, so that the user can adjust the position of the ablation catheter in the blood vessel through the handle, and the rotating piece can also adjust the position of the ultrasonic transducer.

[0034] In a second aspect, some embodiments of the present application further provide an ablation device, including the handle provided by some embodiments of the first aspect; and

[0035] The catheter has a second clamping piece at one end.

[0036] The technical solution of this embodiment provides an ablation device including a handle, and is provided with a catheter having a second clamping piece, so that the catheter can be clamped to the first clamping piece through the second clamping piece, thereby facilitating the catheter to be fixed to the handle.

[0037] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 A three-dimensional schematic diagram of a handle provided in some embodiments of the present application.

[0040] Figure 2 A three-dimensional schematic diagram of a handle provided in some embodiments of the present application.

[0041] Figure 3A front view schematic diagram of a handle provided in some embodiments of the present application with the outer shell removed.

[0042] Figure 4 A schematic top view of a handle without the outer shell provided in some embodiments of the present application.

[0043] Figure 5 for Figure 4 Schematic cross-sectional view at AA in the middle.

[0044] Figure 6 A three-dimensional schematic diagram of a handle provided in some embodiments of the present application without the outer shell.

[0045] Figure 7 A three-dimensional schematic diagram of a communication base in a handle provided in some embodiments of the present application.

[0046] Figure 8 A three-dimensional schematic diagram of a fixing member and related structures in a handle provided in some embodiments of the present application.

[0047] The meanings of the marks in the figure are:

[0048] 100. Handle;

[0049] 10. housing; 101. opening; 11. first holder; 12. first part; 13. second part;

[0050] 20. Rotating member; 201. Wire-passing channel; 21. Magnetic member; 22. Third clamping member;

[0051] 30. Driving member; 31. Coupling;

[0052] 40. Fixing member; 41. Cable group; 411. First cable; 412. Second cable; 42. Communication base; 421. First terminal; 422. Second terminal; 423. Output terminal;

[0053] 50. Control module;

[0054] 61. output gear; 62. driving gear; 63. first transmission gear; 64. second transmission gear;

[0055] 71. Button; 72. Sensor;

[0056] 80. Hall sensor. DETAILED DESCRIPTION

[0057] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0059] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0060] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0061] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0062] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0063] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0064] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0065] Hypertension is the most common chronic disease and a major risk factor for cardiovascular and cerebrovascular diseases. It can easily cause stroke, myocardial infarction, heart failure and chronic kidney disease, and is known as the "invisible killer" that affects human health. Excessive excitement of the renal sympathetic nerves can increase blood pressure, and hypertension has a high risk of death and a heavy burden of treatment. RDN technology refers to a technique that destroys the renal sympathetic afferent and efferent nerves through interventional therapy (via the femoral artery and radial artery), which can weaken renal and systemic sympathetic nerve activity, thereby lowering blood pressure.

[0066] RDN technology can be based on radiofrequency ablation, ultrasonic ablation, cryoablation, chemical ablation and other methods, but currently radiofrequency ablation (rRDN) and ultrasonic ablation (uRDN) are the main ones. Radiofrequency ablation is to deliver a catheter with an electrode to the renal artery, and output radiofrequency energy through the electrode to heat the tissue around the electrode, and gradually conduct the radiofrequency current or heat to below the renal artery adventitia. Although radiofrequency ablation can reduce the temperature of the electrode and the renal artery endothelium by perfusing cold saline, there is still a risk of endothelial damage and renal artery stenosis.

[0067] Ultrasonic energy has the advantages of good penetration and high energy controllability, and has certain technical advantages in the field of RDN. The current existing technology mainly includes ultrasonic transducers that generate directional energy. During the use of this type of transducer, when the ablation catheter enters the blood vessel and reaches the required position, it is easy for the direction of the ultrasonic transducer to be different from the location of the target part. At this time, the direction of the ultrasonic transducer needs to be adjusted to meet the needs.

[0068] Because the inner diameter of blood vessels is small and usually tortuous, the ablation catheter usually bends multiple times according to the direction of the blood vessel when entering the blood vessel and reaching the desired position. At this time, if the outer tube of the ablation catheter is rotated, it is very easy to cause damage to the blood vessel.

[0069] Based on the above considerations, in order to alleviate the damage that may be caused to the blood vessels during the process of adjusting the direction of the ultrasonic transducer, the present application provides a handle, which is provided with a rotating part relative to the outer shell, and the ultrasonic transducer in the ablation catheter is driven to rotate by the rotating part, so that the ultrasonic transducer can rotate within the outer tube of the ablation catheter, thereby alleviating the damage that may be caused to the blood vessels during the process of adjusting the direction of the ultrasonic transducer.

[0070] The present application also provides a fixing part, which fixes the cable in the handle. This arrangement enables the rotating part to drive the ultrasonic transducer in the ablation catheter to rotate without driving the cable in the handle to rotate. It can adjust the direction of the ultrasonic transducer while preventing the cable from rotating with the rotating part. On the premise that the ultrasonic transducer can be directed toward the target area, the occurrence of cable entanglement and the like is reduced, thereby improving the stability of signal transmission.

[0071] The present application also arranges the rotating member, the fixing member and the driving member in sequence along the axis of the rotating member to reduce the radial space occupied by the housing, thereby reducing the overall volume of the handle and facilitating the user's grip.

[0072] Such a handle can not only adjust the direction of the ultrasonic transducer and reduce damage to blood vessels, but also reduce the entanglement of cables during the rotation of the ultrasonic transducer, and can also reduce the radial space occupied by the handle shell, making it easier for users to hold.

[0073] The ablation catheter generally includes an outer tube, and the ultrasonic transducer, cable, temperature sensor or other structures are all arranged inside the outer tube. In addition to being used for ultrasonic transducer ablation catheters, the handle provided in the embodiments of the present application can also be used for other catheters, and the ablation catheter provided in some embodiments of the present application is used as an example for explanation.

[0074] In a first aspect, some embodiments of the present application provide a handle 100, referring to Figures 1 to 3 ,in, Figure 1 A three-dimensional schematic diagram of a handle 100 provided in some embodiments of the present application, Figure 2 This is a three-dimensional schematic diagram of a handle 100 provided in some embodiments of the present application. Figure 3 This is a schematic front view of the handle 100 provided in some embodiments of the present application with the housing 10 removed.

[0075] The handle 100 provided in some embodiments of the present application includes a shell 10, a rotating member 20, a driving member 30 and a fixed member 40; wherein the rotating member 20 is rotatably arranged in the shell 10; the driving member 30 is arranged in the shell 10 and is transmission-connected with the rotating member 20 to drive the rotating member 20 to rotate; the fixed member 40 is fixed in the shell 10, and a rotating joint is provided on the fixed member 40; the rotating member 20, the fixed member 40 and the driving member 30 are arranged in sequence along the axis of the rotating member 20.

[0076] The shell 10 is provided in the handle 100 to provide a fixing base for other structures and to define the internal space of the handle 100. In addition to providing a fixing base for the structure in the handle 100, the shell 10 can also be used to fix the outer tube of the smile catheter; the shell 10 may include a first part 12 and a second part 13 that are interlocked, or may include more parts, or may be formed in one piece after other structures are configured inside; the shape of the shell 10 may be cylindrical, prismatic or other shapes; the material of the shell 10 may be plastic, metal or other materials.

[0077] The rotating member 20 refers to a rotatable structure in the handle 100, and is used to drive the ultrasonic transducer in the ablation catheter to rotate relative to the outer tube of the ablation catheter; the rotating member 20 can be completely accommodated in the outer shell 10, or can partially extend outside the outer shell 10; the shape of the rotating member 20 can be cylindrical, prismatic or other shapes; the material of the rotating member 20 can be plastic, metal or other materials.

[0078] The rotating member 20 can be directly connected to the ultrasonic transducer, or indirectly connected to the ultrasonic transducer via an intermediate structure.

[0079] The driving member 30 refers to a structure in the handle 100 that can drive the rotating member 20 to rotate. The driving member 30 can drive the rotating member 20 to rotate to drive the ultrasonic transducer to rotate; the driving member 30 can be a device such as a motor, a rotary cylinder, or a mechanical structure such as a dial or a rocker; the driving member 30 can be completely accommodated in the outer shell 10, or it can partially extend outside the outer shell 10.

[0080] The fixing part 40 refers to a structure in the handle 100 for fixing cables, and the fixing part 40 is used to provide a fixing base for the cables in the handle 100; the shape of the fixing part 40 can be cylindrical, prismatic or other shapes; the material of the fixing part 40 can be metal, plastic or other materials.

[0081] A rotating joint is provided on the fixing member 40, which refers to a cable connecting member. The rotating joint can be connected to the cable in the ablation catheter. At the same time, the cable in the ablation catheter can also rotate relative to the rotating joint so that the cable in the handle 100 will not get entangled, thereby reducing the negative impact of the rotation of the rotating member 20 on the stability of the cable signal transmission.

[0082] Since the rotating member 20 is rotatably disposed in the housing 10, the rotating member 20 has an axis and can rotate around the axis. The rotating member 20, the fixing member 40 and the driving member 30 are sequentially arranged along the axis of the rotating member 20. On this basis, the length direction of the housing 10 can also be arranged to be parallel to the axis of the rotating member 20. The rotating member 20 is located at one end of the housing 10 so as to be connected to the ultrasonic transducer in the ablation catheter; the fixing member 40 is arranged adjacent to the rotating member 20 so as to connect the cable in the ablation catheter to the fixing member 40.

[0083] Since the driving member 30 needs to drive the rotating member 20 to rotate, and a fixing member 40 is provided between the driving member 30 and the rotating member 20, the driving member 30 can drive the rotating member 20 to rotate through a transmission structure, which can be a gear set, a pulley set or other transmission structures.

[0084] Depending on the user's hand holding state, if the radial size of the shell 10 is large, it is easy for the user to be unable to close the thumb and the other four fingers when holding the handle 100, which can easily lead to unstable holding; accordingly, in this embodiment, the rotating member 20, the fixing member 40 and the driving member 30 are arranged in sequence along the axis of the rotating member 20, so that the shell 10 can have a larger size in the axial direction, and the radial size of the shell 10 can be reduced, so that the user's thumb can close the other four fingers when holding the handle 100, thereby facilitating the user to hold the handle 100 stably.

[0085] When the handle 100 is used in conjunction with an ablation catheter, the ultrasonic transducer in the ablation catheter can be connected to the rotating member 20, the outer tube of the ablation catheter can be connected to the outer shell 10, and the cable in the ablation catheter can be connected to the fixing member 40; after the ablation catheter enters the blood vessel and reaches the target position, the user can control the driving member 30 to drive the rotating member 20 to rotate, thereby adjusting the direction of the ultrasonic transducer so that the ultrasonic transducer can be directed toward the target site. During the rotation of the rotating member 20, the cable in the handle 100 will not rotate the rotating member 20, thereby reducing the negative impact of the cable due to rotation and improving the stability of signal transmission.

[0086] It is understandable that, in addition to being able to drive the rotating member 20 to rotate a certain angle to adjust the direction of the ultrasonic transducer, the driving member 30 can also drive the rotating member 20 to rotate multiple circles, at which time the ultrasonic transducer can form an annular ablation zone around the blood vessel.

[0087] In this embodiment, a rotating member 20 and a fixed member 40 are respectively arranged in the outer shell 10 of the handle 100, and a driving member 30 for driving the rotating member 20 is arranged. The ultrasonic transducer in the ablation catheter is driven to rotate by the rotating member 20, and the fixed member 40 serves as a cable fixing basis. This arrangement enables the rotating member 20 to drive the ultrasonic transducer in the ablation catheter to rotate without driving the cable in the handle 100 to rotate. While being able to adjust the direction of the ultrasonic transducer, it is also possible to prevent the cable from rotating with the rotating member 20. On the premise that the ultrasonic transducer can be directed toward the target site, the occurrence of cable entanglement and the like is reduced, and the stability of signal transmission is improved. The rotating member 20, the fixed member 40 and the driving member 30 are arranged in sequence along the axis of the rotating member 20 to reduce the radial space occupied by the outer shell 10, thereby reducing the overall volume of the handle 100 and making it easier for the user to hold.

[0088] In some embodiments, since the ablation catheter is usually long and usually bends along the blood vessel, the ultrasonic transducer is indirectly connected to the rotating member 20 via an intermediate structure, which may be a torque spring tube or other structures.

[0089] According to some embodiments of the present application, reference Figure 4 , Figure 5 , Figure 7 ,in, Figure 4 A schematic top view of the handle 100 provided in some embodiments of the present application without the housing 10 is shown. Figure 5 for Figure 4 The cross-sectional view at AA in the middle is as follows: Figure 7 A three-dimensional schematic diagram of the communication base 42 in the handle 100 provided in some embodiments of the present application.

[0090] In some embodiments of the present application, a wire passage 201 is provided in the rotating member 20 along the axial direction of the rotating member 20 , and a communication base 42 is accommodated in the wire passage 201 . One end of the communication base 42 is rotatably connected to the fixing member 40 .

[0091] The wire-passing channel 201 refers to a channel formed in the rotating member 20. The wire-passing channel 201 extends along the axial direction of the rotating member 20. The main function of the wire-passing channel 201 is to allow the cables in the ablation catheter to pass through and be connected to the fixing member 40, for example, to allow the cables of the ultrasonic transducer to pass through; along the radial direction of the rotating member 20, the cross-sectional shape of the wire-passing channel 201 can be circular, square or other shapes.

[0092] The communication base 42 refers to a structure in the handle 100 that can be connected to the cable in the ablation catheter and realize signal exchange; according to the cross-sectional shape of the wire channel 201, the communication base 42 can be cylindrical, prismatic or other shapes; the material of the communication base 42 can be plastic, metal or other materials.

[0093] The communication base 42 should be fixed relative to the rotating member 20 so that the cable of the ablation catheter can be stationary relative to the communication base 42 during the rotation of the rotating member 20, so that the communication base 42 can always be connected to the cable of the ultrasound transducer during the rotation of the rotating member 20.

[0094] One end of the communication base 42 can be rotatably connected to the fixing member 40 and realize signal exchange with the cable on the fixing member 40, and the other end of the communication base 42 can be connected to the cable of the ablation catheter and realize signal exchange. Specifically, for example, an input terminal can be provided on the communication base 42 to realize signal exchange with the cable in the ablation catheter, and an output terminal 423 can also be provided on the communication base 42 to realize signal exchange with the cable on the fixing member 40, so that the transmission terminal is connected to the rotating joint of the fixing member 40, so that the rotation of the communication base 42 is not easy to have a negative impact on the signal exchange.

[0095] In this embodiment, the communication base 42 is arranged in the rotating part 20 so that the cable of the ultrasonic transducer in the ablation catheter can be connected to the communication base 42, and the communication base 42 can be stationary relative to the cable of the ultrasonic transducer, so that the communication base 42 can always be connected to the cable of the ultrasonic transducer during the rotation of the rotating part 20, so as to improve the stability of transmission; the communication base 42 is rotatably connected to the fixed part 40, so that the communication base 42 can rotate relative to the fixed part 40, thereby reducing the impact of the rotation of the communication base 42 on the fixed part 40.

[0096] refer to Figure 7 In some embodiments, a first terminal 421, a second terminal 422 and an output terminal 423 are provided on the communication base 42, the output terminal 423 is provided on the axis of the rotating member 20, and the output terminal 423 is connected to both the first terminal 421 and the second terminal 422; a cable group 41 is provided on the fixed member 40, and the cable group 41 is connected to the rotating joint; the handle 100 also includes a control module 50, and the cable group 41 is electrically connected to the control module 50.

[0097] The first terminal 421 and the second terminal 422 both refer to structures in the communication base 42 that are connected to the cable of the ablation catheter and realize signal exchange. The first terminal 421 and the second terminal 422 can respectively receive signals from different cables in the ablation catheter. In addition to the first terminal 421 and the second terminal 422, the communication base 42 may also include a third terminal, a fourth terminal or more terminals, and the specific number of the terminals can be determined according to the number of cables in the ablation catheter.

[0098] The output terminal 423 refers to a structure in the communication base 42 that is connected to the rotating joint of the fixed part 40. The output terminal 423 will also rotate synchronously relative to the rotating joint during the rotation of the rotating part 20; the output terminal 423 can receive the signals received by the first terminal 421 and the second terminal 422 and send them to the connected rotating joint; the output terminal 423 is set on the axis of the rotating part 20, so that the output terminal 423 is not easy to fall off the rotating joint during rotation.

[0099] The cable group 41 refers to a structure on the fixing member 40 connected to the rotating joint. The cable group 41 may include a first cable or multiple cables. When the cable group 41 includes multiple cables, the specifications and shapes of the multiple cables may be the same or different. The number and specifications of the cables in the cable group 41 may be determined according to the number and specifications of the cables in the ablation catheter.

[0100] The control module 50 refers to a structure in the handle 100 for controlling the reception and transmission of signals. The control module 50 may include a PCB board or other devices. The control module 50 can receive signals sent by the cable group 41 and send them to the outside world. The control module 50 can also receive signals from the outside world and send them to the cable group 41. The control module 50 can also receive signals from the outside world and send them to the various structures connected in the handle 100.

[0101] In this embodiment, the communication base 42 includes a first terminal 421 and a second terminal 422, so that the communication base 42 can be connected to different cables of the ultrasonic transducer respectively; the output terminal 423 is arranged on the axis of the rotating part 20, so that the output terminal 423 can always be connected to the cable group 41 of the fixed part 40 during the rotation of the communication base 42, so as to reduce the negative impact of the rotation of the communication base 42 on the stability of signal transmission.

[0102] In some embodiments, the control module 50 is connected to an external device, and the external device can control the ablation catheter through the control module 50. For example, the external device controls the ultrasonic power of the ablation catheter by sending ultrasonic power information to the control module 50; the control module 50 can also send parameter information such as the ultrasonic power and temperature of the ablation catheter to the external device.

[0103] According to some embodiments of the present application, reference Figures 4 to 6 ,in, Figure 4 A schematic top view of the handle 100 provided in some embodiments of the present application without the housing 10 is shown. Figure 5 for Figure 4 The cross-sectional view at AA in the middle is as follows: Figure 6 A three-dimensional schematic diagram of the handle 100 provided in some embodiments of the present application without the housing 10 .

[0104] In some embodiments of the present application, an output gear 61 and a driving gear 62 are rotatably provided in the housing 10, the output gear 61 is transmission-connected to the rotating member 20, the driving gear 62 is transmission-connected to the driving member 30, and the output gear 61 is transmission-connected to the driving gear 62.

[0105] The driving gear 62 is a gear connected to the driving member 30 , and the output gear 61 is a gear connected to the rotating member 20 . The driving gear 62 and the output gear 61 may be made of metal, plastic or other materials.

[0106] The output gear 61 and the driving gear 62 are connected in transmission so that the driving gear 62 can drive the output gear 61 to rotate, thereby driving the rotating member 20 to rotate; the transmission structure between the driving gear 62 and the output gear 61 can be a gear set or other structures, and the transmission structure between the driving gear 62 and the output gear 61 is mainly used to transmit power; because a fixed member 40 is also provided between the driving member 30 and the rotating member 20, the transmission structure between the driving gear 62 and the output gear 61 is also used to change the transmission path of power so that the transmission path of power can avoid the fixed member 40.

[0107] The present embodiment provides some specific structures for the driving member 30 to drive the rotating member 20 to rotate, so that the output gear 61 and the driving gear 62 are connected to the rotating member 20 and the driving member 30 respectively, and the driving gear 62 is transmission-connected to the output gear 61, so that the driving member 30 can drive the rotating member 20 to rotate. At the same time, by making the driving gear 62 transmission-connected to the output gear 61, the power transmission path between the driving gear 62 and the output gear 61 can deviate from the axis of the rotating member 20, so as to reduce the negative impact of the power transmission between the driving gear 62 and the output gear 61 on the fixed member 40.

[0108] refer to Figure 5 , Figure 6 In some embodiments, a first transmission gear 63 and a second transmission gear 64 which are coaxially fixedly connected are further provided in the housing 10 . The first transmission gear 63 is transmission-connected to the driving gear 62 , and the second transmission gear 64 is transmission-connected to the output gear 61 .

[0109] The first transmission gear 63 refers to a gear that is transmission-connected to the driving gear 62, and the second transmission gear 64 refers to a gear that is transmission-connected to the output gear 61. The first transmission gear 63 and the second transmission gear 64 are coaxially fixedly connected so that the power of the driving gear 62 can be transmitted to the output gear 61 via the first transmission gear 63 and the second transmission gear 64; the first transmission gear 63 and the second transmission gear 64 are coaxially fixedly connected, that is, the first transmission gear 63 and the second transmission gear 64 have the same angular velocity.

[0110] The first transmission gear 63 can be directly engaged with the driving gear 62, or an idler gear can be set between the first transmission gear 63 and the driving gear 62 to change the direction of power; similar to the first transmission gear 63, the second transmission gear 64 can be directly engaged with the driving gear 62, or an idler gear can be set between the second transmission gear 64 and the output gear 61 to change the direction of power.

[0111] The number of teeth of the first transmission gear 63 and the number of teeth of the second transmission gear 64 can be the same, then the first transmission gear 63 and the second transmission gear 64 only play the role of transmitting power; the tooth ratio of the first transmission gear 63 and the second transmission gear 64 can also be greater than 1, then the first transmission gear 63 and the second transmission gear 64 can also play a role of deceleration; the tooth ratio of the first transmission gear 63 and the second transmission gear 64 can also be less than 1, then the first transmission gear 63 and the second transmission gear 64 can also play a role of acceleration.

[0112] This embodiment provides some transmission connection methods between the output gear 61 and the driving gear 62. By setting a first transmission gear 63 and a second transmission gear 64 that are coaxially fixedly connected, the power transmission path between the driving gear 62 and the output gear 61 deviates from the axis of the rotating member 20, thereby reducing the negative impact of the power transmission between the driving gear 62 and the output gear 61 on the fixed member 40.

[0113] refer to Figure 5 , Figure 6 In some embodiments, the ratio of the number of teeth of the first transmission gear 63 and the second transmission gear 64 is 1, and the ratio of the number of teeth of the output gear 61 and the driving gear 62 is greater than or equal to 1.

[0114] The gear ratio of the first transmission gear 63 and the second transmission gear 64 is equal to 1, that is, the number of teeth of the first transmission gear 63 is the same as the number of teeth of the second transmission gear 64. At this time, the first transmission gear 63 and the second transmission gear 64 only play the role of transmitting power.

[0115] The gear ratio of the output gear 61 to the driving gear 62 can be equal to 1. At this time, the rotation speed of the output gear 61 is equal to the rotation speed of the driving gear 62. The gear train composed of the driving gear 62, the first transmission gear 63, the second transmission gear 64 and the output gear 61 is mainly used to transmit power.

[0116] The gear ratio of the output gear 61 to the driving gear 62 may also be greater than 1. In this case, the rotation speed of the output gear 61 is less than that of the driving gear 62. The gear train composed of the driving gear 62, the first transmission gear 63, the second transmission gear 64 and the output gear 61 is used not only for transmitting power but also for deceleration. The faster the rotation speed of the rotating member 20, the shorter the operation time for the user to confirm the position of the ultrasonic transducer and stop the rotation of the rotating member 20, and the higher the operation difficulty, making it easier for problems such as repeated operation to occur. Making the gear ratio of the output gear 61 to the driving gear 62 greater than 1 can slow down the rotation speed of the rotating member 20, so as to provide more time for the user to confirm the position of the ultrasonic transducer and stop the rotation of the rotating member 20, thereby reducing the difficulty of operation.

[0117] In this embodiment, the tooth ratio of the first transmission gear 63 and the second transmission gear 64 is 1, that is, the first transmission gear 63 and the second transmission gear 64 play the role of changing the power transmission path; the tooth ratio of the output gear 61 and the driving gear 62 is greater than or equal to 1, so that the rotation speed of the output gear 61 can be less than or equal to the rotation speed of the driving gear 62, thereby reducing the rotation speed of the output gear 61, so that the staff can better control the direction of the ultrasonic transducer through the handle 100, thereby reducing the difficulty of operation.

[0118] refer to Figure 6 In some embodiments, the driving member 30 has an initial state; the handle 100 also includes a button 71 movably disposed on the housing 10 and a sensor 72 disposed in the housing 10, the sensor 72 is electrically connected to the driving member 30, and the sensor 72 can be triggered by the button 71 to put the driving member 30 in the initial state.

[0119] The initial state refers to a certain state in which the driving member 30 is in. Since the driving member 30 is used to drive the rotating member 20 to rotate, the driving member 30 can also limit the position of the rotating member 20. When the driving member 30 is in the initial state, the rotating member 20 can be in a certain state. At this time, the user can remove the ablation catheter from the rotating member 20, and can also install the ablation catheter on the rotating member 20.

[0120] The button 71 refers to a trigger structure movably arranged on the housing 10. The button 71 movably arranged on the housing 10 means that the button 71 can move relative to the housing 10. For example, the button 71 can move along the axial direction of the housing 10, can also move along the radial direction of the housing 10, or move along other directions. The sensor 72 refers to an information acquisition device arranged in the housing 10. The sensor 72 can be triggered by the button 71, which means that the sensor 72 can collect information about the activity of the button 71. When the button 71 is active, the sensor 72 can collect information about the activity of the button 71 and convert it into an electrical signal. Specifically, in some embodiments, the sensor 72 can be a pressure sensor, in which case the activity of the button 71 can press on the sensor 72 or change the pressure between the sensor 72 and the sensor 72 to trigger the sensor 72; in other embodiments, the sensor 72 can also be a position sensor, in which case the activity of the button 71 will cause a change in position, and the sensor 72 can collect the position change of the button 71 to be triggered by the button 71; it can be understood that the sensor 72 can also be other sensors, not limited to the above-mentioned pressure sensor or position sensor.

[0121] After being triggered, the sensor 72 can send an electrical signal to the driving member 30. After receiving the electrical signal sent by the sensor 72, the driving member 30 can be in an initial state and drive the rotating member 20 to move synchronously so that the rotating member 20 is in a certain position.

[0122] After each use of the handle 100 or before starting to use the handle 100, the user can press the button 71 and trigger the sensor 72 to control the driving member 30 to drive the rotating member 20 to be in a certain state, so that the user can remove the ablation catheter from the handle 100 or install the ablation catheter on the handle 100.

[0123] In this embodiment, the driving member 30 has an initial state, and a button 71 and a sensor 72 are provided on the handle 100, so that the user can return the driving member 30 to the initial state through the button 71, so that the handle 100 has a certain state when it is used next time.

[0124] According to some embodiments of the present application, reference Figure 3 , Figure 5 , Figure 6 ,in, Figure 3 This is a front view schematic diagram of the handle 100 provided in some embodiments of the present application with the housing 10 removed. Figure 5 A cross-sectional schematic diagram of a handle 100 provided in some embodiments of the present application without the housing 10 is shown. Figure 6 A three-dimensional schematic diagram of the handle 100 provided in some embodiments of the present application without the housing 10 .

[0125] In some embodiments of the present application, at least two magnetic members 21 are spaced apart on the rotating member 20 along the circumference of the rotating member 20 ; a Hall sensor 80 is also disposed on one side of the rotating member 20 .

[0126] The magnetic part 21 refers to a structure with magnetism; the magnetic part 21 may include a structure with magnetism itself, such as a natural magnet, etc. The magnetic part 21 may also include a structure that generates magnetism after power is applied or other external intervention methods, such as an electromagnet, etc.; the shape of the magnetic part 21 may be cylindrical, prismatic or other shapes.

[0127] The circumference of the rotating member 20 refers to the direction surrounding the axial direction of the rotating member 20; the number of magnetic members 21 can be two, or three, four or more, and at least two magnetic members 21 can be evenly spaced on the rotating member 20 along the circumference of the rotating member 20.

[0128] The Hall sensor 80 is a magnetic field sensor. The Hall sensor 80 is arranged on one side of the rotating part 20. When the rotating part 20 rotates, the magnetic part 21 on the rotating part 20 rotates accordingly, and the relative position between the magnetic part 21 and the Hall sensor 80 changes. The position of the Hall sensor 80 in the magnetic field also changes, which can cause the electrical signal generated by the Hall sensor 80 to change, so as to achieve the effect of monitoring the position of the rotating part 20.

[0129] This embodiment provides some structures capable of monitoring the rotation angle of the rotating part 20. A plurality of magnetic parts 21 are arranged on the peripheral side of the rotating part 20, and a Hall sensor 80 is arranged next to the rotating part 20. The rotation angle of the rotating part 20 is detected by the magnetic induction characteristics of the Hall sensor 80, so that the user can confirm the status of the rotating part 20.

[0130] In some embodiments, the handle 100 may also include a display screen, so that the display screen is communicatively connected to the control module 50, and the Hall sensor 80 is communicatively connected to the control module 50, so as to display position information such as the rotation angle of the rotating member 20 through the display screen, and also to display information such as the ultrasonic power and temperature in the ablation catheter through the display screen.

[0131] According to some embodiments of the present application, reference Figure 2 , Figure 5 ,in, Figure 2 This is a three-dimensional schematic diagram of a handle 100 provided in some embodiments of the present application. Figure 5 A schematic cross-sectional view of the handle 100 provided in some embodiments of the present application with the outer shell 10 removed.

[0132] In some embodiments of the present application, an opening 101 is provided on the housing 10 , and one end of the rotating member 20 extends into the opening 101 ; a first holding member 11 connected to the housing 10 is also provided in the opening 101 .

[0133] The opening 101 may be formed at one end of the housing 10 , and one end of the rotating member 20 extends into the opening 101 ; the function of the opening 101 is to enable the ultrasonic transducer of the ablation catheter to be connected to the rotating member 20 ; the shape of the opening 101 may be circular, square or other shapes.

[0134] A first clamping component 11 is provided in the opening 101. The first clamping component 11 can be directly connected to the inner wall of the shell 10, or can be connected to other structural components in the shell 10. The first clamping component 11 is used to clamp the outer tube of the ablation catheter to the shell 10; the first clamping component 11 can be a buckle, a slot or other clamping structure; there can be one first clamping component 11, or there can be two or more.

[0135] In this embodiment, an opening 101 is provided on the outer shell 10, and a first clamping member 11 is provided in the opening 101, so that the ablation catheter can be detachably clamped on the outer shell 10 through the first clamping member 11, so that the user can adjust the position of the ablation catheter in the blood vessel through the handle 100, and the rotating member 20 can also adjust the position of the ultrasonic transducer.

[0136] In some embodiments, a third clamping member 22 is also provided on the rotating member 20, and the third clamping member 22 is used to clamp the intermediate structure so that the rotating member 20 can be connected to the ultrasonic transducer through the intermediate structure; the third clamping member 22 can be a buckle, a slot or other clamping structure; there can be one third clamping member 22, or there can be two or more.

[0137] In the second aspect, some embodiments of the present application further provide an ablation device, comprising the handle 100 provided in some embodiments of the first aspect, and a catheter, wherein a second clamp is provided at one end of the catheter, and the second clamp can be clamped on the first clamp 11.

[0138] A second clamp is provided at one end of the catheter connected to the handle 100, and the second clamp is specifically provided on the outer tube of the catheter; the second clamp can cooperate with the first clamp 11 and be clamped on the first clamp 11; the second clamp can be a slot, a buckle or other clamping structure that is compatible with the first clamp 11.

[0139] When the ablation device is in use, the ablation catheter can be installed on the handle 100. Specifically, the outer tube of the ablation catheter can be clamped to the outer shell 10 by the first clamp 11 and the second clamp, and the intermediate structure can be clamped to the rotating member 20 by the third clamp 22, so that the ultrasonic transducer is connected to the rotating member 20. At this time, the rotating member 20 can drive the ultrasonic transducer to rotate through the intermediate structure, while the outer tube does not rotate and remains fixed.

[0140] This embodiment provides an ablation device including a handle 100 , and is provided with a catheter having a second clamping piece, so that the catheter can be clamped to the first clamping piece 11 through the second clamping piece, thereby facilitating the catheter to be fixed to the handle 100 .

[0141] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A handle, applied to an ablation catheter, characterized in that: include: shell; A rotating member rotatably disposed in the housing; A driving member, disposed in the housing and drivingly connected to the rotating member to drive the rotating member to rotate; A fixing member, fixedly arranged in the housing, and provided with a rotating joint; The rotating member, the fixing member and the driving member are arranged in sequence along the axis of the rotating member.

2. The handle according to claim 1, characterized in that: A wire-passing channel is provided in the rotating member along the axial direction of the rotating member, a communication base is accommodated in the wire-passing channel, and one end of the communication base is rotatably connected to the fixing member.

3. The handle according to claim 2, characterized in that: The communication base is provided with a first terminal, a second terminal and an output terminal, the output terminal is provided on the axis of the rotating member, and the output terminal is connected to both the first terminal and the second terminal; The fixing member is provided with a cable group, and the cable group is connected to the rotary joint; The handle further includes a control module, and the cable group is electrically connected to the control module.

4. The handle according to any one of claims 1 to 3, characterized in that: An output gear and a driving gear are rotatably disposed in the housing. The output gear is transmission-connected to the rotating member, the driving gear is transmission-connected to the driving member, and the output gear is transmission-connected to the driving gear.

5. The handle according to claim 4, characterized in that: The housing is further provided with a first transmission gear and a second transmission gear which are coaxially fixedly connected. The first transmission gear is transmission-connected to the driving gear, and the second transmission gear is transmission-connected to the output gear.

6. The handle according to claim 5, characterized in that: The ratio of the number of teeth of the first transmission gear to that of the second transmission gear is 1, and the ratio of the number of teeth of the output gear to that of the driving gear is greater than or equal to 1.

7. The handle according to claim 4, characterized in that: The driving member has an initial state; The handle further comprises a button movably arranged on the shell and a sensor arranged in the shell, wherein the sensor is electrically connected to the driving member and can be triggered by the button to put the driving member in the initial state.

8. The handle according to any one of claims 1 to 3, characterized in that: At least two magnetic members are spaced apart on the rotating member along the circumference of the rotating member; A Hall sensor is also provided on one side of the rotating member.

9. The handle according to any one of claims 1 to 3, characterized in that: The housing is provided with an opening, and one end of the rotating member extends into the opening; A first clamping piece connected to the shell is also arranged in the opening.

10. An ablation device, characterized in that: comprising a handle as claimed in any one of claims 1 to 9; and A catheter, one end of which is provided with a second clamping piece.

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