Interventional handle and interventional delivery system

Abstract

The present invention provides an interventional handle and an interventional delivery system. The interventional handle includes a housing, an electric drive module, a manual drive module, a cover body, and a control module; the housing has an opening; the cover body is adapted to the opening and detachably covers the opening; the electric drive module is disposed in the housing, and the manual drive module is disposed in the housing corresponding to the opening; the control module is configured to obtain the assembly information on whether the cover body covers the opening, and according to the assembly information, when the cover body covers the opening, switch the electric drive module to an enabled mode; when the cover body is separated from the opening, switch the electric drive module to a disabled mode. With such a configuration, the layout of the interventional handle is optimized, allowing more other functional modules to be arranged. And when manual driving is required, the cover body can be separated from the housing.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an interventional handle and an interventional delivery system. Background Art

[0002] Interventional therapy is a brand-new treatment technology developed internationally in recent years. Its principle is a minimally invasive treatment using modern high-tech means. Under the guidance of medical imaging equipment, special precision instruments are introduced into the human body to diagnose and locally treat internal diseases. This technology has the characteristics of no need for surgery, small trauma, quick recovery, and good effect, avoiding the harm caused to patients by traditional surgical operations.

[0003] The delivery system used in cardiac valve interventional therapy generally consists of two parts: a catheter part and a handle part. As the power source of the entire interventional therapy, the handle needs to ensure sufficient safety and effectiveness. Currently, conventional pure manual handles use screw pairs to achieve transmission; electric handles use a combination of components such as motors, couplings, gears, lead screws, or hydraulics to achieve transmission. With the in-depth research on solutions for cardiac valve diseases, in order to improve the release accuracy and stability of interventional surgeries, a hybrid power handle has been developed for the delivery system, such as the combination of electric and manual, or the combination of hydraulic and manual. Such hybrid power handles use electric or hydraulic methods as the main operation mode, and manual as a risk management measure. When the main operation mode fails, it can be switched to the manual mode to continue the surgery, reducing the surgical risk. Due to the very low frequency of use of the manual mode in the hybrid power handle and the inability to directly cancel the manual function, how to cleverly combine the manual function with the main body structure, that is, without affecting the main operation structure and being able to play a role at critical times, requires further optimization of the handle structure to achieve a harmonious and natural state. Summary of the Invention

[0004] The purpose of the present invention is to provide an interventional handle and an interventional delivery system to solve the problem that the manual module of the existing delivery system cannot be cancelled, which affects the overall layout of the handle.

[0005] To solve the above technical problems, the present invention provides an interventional handle, which includes: a housing, an electric drive module, a manual drive module, a cover body, and a control module;

[0006] The housing has an opening; the cover body is adapted to the opening and is detachably covered on the opening; the electric drive module is arranged in the housing, and the manual drive module is arranged at the position of the housing corresponding to the opening;

[0007] The control module is configured to obtain the assembly information on whether the cover body is closed on the opening, and based on the assembly information, switch the electric drive module to the enabled mode when the cover body is closed on the opening; and switch the electric drive module to the disabled mode when the cover body is separated from the opening.

[0008] Optionally, the intervention handle includes a first sensor, the first sensor is disposed on the housing corresponding to the opening, and is connected to the control module; the first sensor is used to obtain the assembly information on whether the cover body is closed on the opening.

[0009] Optionally, the first sensor is a magnetic sensor, and the cover body has a magnet at a position corresponding to the magnetic sensor.

[0010] Optionally, the intervention handle includes a matching connecting component, and the connecting component is used to apply a binding force towards the opening to the cover body, so as to drive the cover body to be assembled and connected to the opening.

[0011] Optionally, the connecting component includes a first magnetic attraction component and a second magnetic attraction component that can attract each other, the first magnetic attraction component is disposed on the cover body, the second magnetic attraction component is disposed at the opening, and when the cover body is closed on the opening, the cover body is attracted to the opening by magnetic force.

[0012] Optionally, the cover body and the housing have a matching engaging component, and when the cover body is closed on the opening, the cover body is engaged with the opening through the engaging component; wherein, the engaging component and the connecting component are arranged at both ends of the cover body and the opening at intervals along the axial direction of the housing.

[0013] Optionally, the intervention handle includes a conversion module, the conversion module includes a first lead screw arranged along the axial direction of the housing, and a ball nut that is threadedly connected to the first lead screw in a rotatable manner; the first lead screw is used to be connected to the outer tube of the intervention catheter;

[0014] The housing defines the axial position of the ball nut along the housing and restricts the circumferential rotation of the first lead screw; the ball nut is respectively connected to the electric drive module and the manual drive module, and the ball nut is used to rotate around the first lead screw under the drive of the electric drive module or the manual drive module, so as to drive the first lead screw to move along the axial direction of the housing.

[0015] Optionally, the manual drive module includes a first knob coaxially connected to the ball nut; the electric drive module includes a motor and a transmission member, and the motor is connected to the ball nut through the transmission member.

[0016] Optionally, the intervention handle includes a second sensor and a third sensor. The second sensor is configured to obtain the distal stroke limit information of the first lead screw, and the third sensor is configured to obtain the proximal stroke limit information of the first lead screw. Based on the distal stroke limit information, the control module prohibits the electric drive module from driving the first lead screw to move distally. Based on the proximal stroke limit information, the control module prohibits the electric drive module from driving the first lead screw to move proximally.

[0017] Optionally, the second sensor and the third sensor are magnetic sensors, and the first lead screw has a magnet. When the first lead screw moves along the housing to the distal stroke limit position, the magnet is axially aligned with the second sensor. When the first lead screw moves along the housing to the proximal stroke limit position, the magnet is axially aligned with the third sensor.

[0018] Optionally, the first lead screw has an axially penetrating cavity for the outer tube of the intervention catheter to penetrate and be fixed, and the cavity is also for the inner tube of the intervention catheter to movably pass through.

[0019] Optionally, the intervention handle includes an inner tube control module. The inner tube control module includes a second lead screw axially arranged along the housing and a second knob threadedly connected to be rotatable around the second lead screw. The housing defines the axial position of the second knob along the housing and restricts the circumferential rotation of the second lead screw.

[0020] The second lead screw is configured to be connected to the inner tube or the bending control wire of the intervention catheter, so as to drive the inner tube or the bending control wire to move axially along the housing under the driving of the rotation of the second knob.

[0021] Optionally, the housing has an observation window with scales to indicate the rotation amount of the second knob.

[0022] To solve the above technical problems, the present invention further provides an intervention delivery system, which includes the above-mentioned intervention handle and further includes an intervention catheter. The intervention catheter includes an outer tube, and the outer tube is configured to move axially along the housing under the drive of the electric drive module or the manual drive module.

[0023] In summary, in the interventional handle and the interventional delivery system provided by the present invention, the interventional handle includes a housing, an electric drive module, a manual drive module, a cover body, and a control module; the housing has an opening; the cover body is adapted to the opening and detachably covers the opening; the electric drive module is disposed in the housing, and the manual drive module is disposed at a position of the housing corresponding to the opening; the control module is configured to obtain the assembly information on whether the cover body covers the opening, and based on the assembly information, when the cover body covers the opening, switch the electric drive module to an enabled mode; when the cover body is separated from the opening, switch the electric drive module to a disabled mode.

[0024] With such a configuration, when the cover body covers the opening, the control module switches the electric drive module to the enabled mode, that is, electric control is allowed. At the same time, by covering the opening, the cover body hides the manual drive module, optimizing the layout of the interventional handle and allowing more other functional modules to be arranged. When manual drive is required, the cover body can be separated from the housing to expose the manual drive module, thereby realizing manual drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Those of ordinary skill in the art will understand that the provided drawings are used to better understand the present invention and do not constitute any limitation to the scope of the present invention. Among them:

[0026] Figure 1 is a schematic diagram of the interventional handle according to an embodiment of the present invention, in which the cover body covers the opening.

[0027] Figure 2 is a schematic diagram of the interventional handle according to an embodiment of the present invention, in which the cover body is separated from the housing.

[0028] Figure 3 is a schematic diagram of the cover body according to an embodiment of the present invention.

[0029] Figure 4 is an axial sectional view of the cover body according to an embodiment of the present invention.

[0030] Figure 5 is an axial sectional view of the interventional handle according to an embodiment of the present invention.

[0031] Figure 6 is a partial enlarged view of the electric drive module and the manual drive module according to an embodiment of the present invention.

[0032] Figure 7 is a partial enlarged view of the inner tube control module according to an embodiment of the present invention.

[0033] Figure 8 is a schematic diagram of the interventional handle according to another embodiment of the present invention, in which the cover body is separated from the housing.

[0034] Figures 9a to 9c It is a schematic diagram of the circumferential rotation of the driving member according to another embodiment of the present invention.

[0035] Figure 10 It is a schematic diagram of the manual driving module according to another embodiment of the present invention.

[0036] Figure 11 It is a side view of the manual driving module according to another embodiment of the present invention.

[0037] Figure 12 It is a schematic diagram of the axial sectional view of the manual driving module according to another embodiment of the present invention.

[0038] Figure 13a 、 Figure 13b It is a schematic diagram of the forward rotation ratchet and the reverse rotation ratchet according to another embodiment of the present invention.

[0039] Figure 14 It is a schematic diagram of the commutator according to another embodiment of the present invention.

[0040] Figure 15a It is a schematic diagram of the commutator in the vacant position according to another embodiment of the present invention.

[0041] Figure 15b It is a schematic diagram of the commutator in the forward rotation position according to another embodiment of the present invention.

[0042] Figure 16 It is a top view of the clutch assembly in the disengaged state according to another embodiment of the present invention.

[0043] Figure 17 It is a schematic diagram of the clutch assembly in the engaged state according to another embodiment of the present invention.

[0044] In the drawings:

[0045] 11 - Inner tube; 12 - Outer tube; 13 - Stabilizing tube; 2 - Housing; 20 - Opening; 21 - Second magnetic attraction component; 22 - Card slot; 23 - Ring groove; 24 - Observation window; 3 - Electric drive module; 31 - Motor; 32 - Transmission component; 321 - First gear; 322 - Second gear; 33 - Battery; 4 - Manual drive module; 41 - First knob; 42 - Clutch assembly; 421 - Commutator; 4211 - Forward rotation limit groove; 4212 - Reverse rotation limit groove; 4213 - Forward rotation meshing recess; 4214 - Reverse rotation meshing recess; 4215 - Forward rotation vacant recess; 4216 - Reverse rotation vacant recess; 4217 - Forward rotation transition slope; 4218 - Reverse rotation transition slope; 422 - Forward rotation ratchet; 423 - Reverse rotation ratchet; 4231 - Reverse rotation limit post; 424 - Potential energy component; 425 - Point contact component; 426 - Commutation dial; 43 - Driving component; 430 - Base; 431 - Lever; 432 - Rotating shaft; 433 - Bearing; 434 - Avoidance hole; 435 - Dial slot; 5 - Cover body; 51 - Magnet; 52 - First magnetic attraction component; 53 - Snap; 61 - Recycling (loading) button; 62 - Release button; 63 - Power switch; 7 - Conversion module; 70 - Cavity; 71 - First lead screw; 72 - Ball nut; 73 - Outer tube fixing component; 74 - Magnet; 75 - Tooth disc; 81 - First sensor; 82 - Second sensor; 83 - Third sensor; 9 - Inner tube control module; 90 - Space; 91 - Second lead screw; 92 - Second knob; 93 - Inner tube fixing component; 94 - Convex ring. Detailed implementation manners

[0046] To make the objectives, advantages and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are all in very simplified forms and not drawn to scale, only for the purpose of facilitating and clearly assisting in explaining the objectives of the embodiments of the present invention. In addition, the structures shown in the accompanying drawings are often part of the actual structures. In particular, the accompanying drawings need to show different emphases and sometimes different scales will be used.

[0047] As used in the present invention, the singular forms "a", "an", and "the" include plural referents, the term "or" is generally used in the sense of including "and / or", the term "several" is generally used in the sense of including "at least one", the term "at least two" is generally used in the sense of including "two or more". In addition, the terms "first", "second", "third" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third" may explicitly or implicitly include one or at least two of such features. "One end" and "the other end", as well as "proximal end" and "distal end" generally refer to two corresponding parts, which include not only the endpoints. The terms "proximal end" and "distal end" are defined herein relative to an interventional delivery system, which has one end for intervening in the human body and a control end (i.e., an intervention handle) extending outside the body. The term "proximal end" refers to the position of an element closer to the control end of the interventional delivery system extending outside the body, and the term "distal end" refers to the position of an element closer to the end of the interventional delivery system intervening in the human body and thus farther from the control end of the interventional delivery system. Optionally, in a manual or hand-operated application scenario, the terms "proximal end" and "distal end" are defined herein relative to an operator such as a surgeon or a clinician. The term "proximal end" refers to the position of an element closer to the operator, and the term "distal end" refers to the position of an element closer to the interventional delivery system and thus farther from the operator. In addition, as used in the present invention, "mounted", "connected", "coupled", an element "disposed" on another element should be understood in a broad sense, generally only indicating a connection, coupling, cooperation or transmission relationship between two elements, and the two elements can be directly or indirectly connected, coupled, cooperated or transmitted through an intermediate element, and should not be construed as indicating or implying a spatial position relationship between the two elements, that is, an element can be in any position such as inside, outside, above, below or on one side of another element, unless otherwise explicitly stated. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, directional terms such as above, below, up, down, upward, downward, left, right, etc. are used relative to an exemplary embodiment as shown in the figures, the upward or upper direction is towards the top of the corresponding figure, and the downward or lower direction is towards the bottom of the corresponding figure.

[0048] The object of the present invention is to provide an intervention handle and an interventional delivery system to solve the problem that the manual module of the existing delivery system cannot be cancelled, which affects the overall layout of the handle.

[0049] The following is a description with reference to the accompanying drawings.

[0050] An embodiment of the present invention provides an interventional delivery system. One application scenario of the interventional delivery system is to deliver an artificial valve prosthesis to an implantation site in a patient's heart (such as the native annulus). The interventional delivery system includes an interventional catheter, and the artificial valve prosthesis can be loaded on the interventional catheter and move forward and backward therewith.

[0051] In a demonstration example, the interventional catheter includes an inner tube 11 and an outer tube 12. The outer tube 12 is movably sleeved outside the inner tube 11, and there is a certain gap at their distal ends for placing the artificial valve prosthesis. When the inner tube 11 and the outer tube 12 move forward and backward along the axis together, they can drive the artificial valve prosthesis to move forward and backward along the patient's blood vessel. After roughly moving to the implantation site, the outer tube 12 retreats proximally relative to the inner tube 11, exposing (or partially exposing) the artificial valve prosthesis. The stent of the artificial valve prosthesis can be optionally self-expanding and expand to fit the native annulus of the implantation site to complete the implantation. The process of retrieval is the opposite and will not be elaborated here. It can be understood that the principle of the entire interventional catheter is to achieve the loading, release, or retrieval of the artificial valve prosthesis through the displacement difference generated by the forward and backward movement of the outer tube 12 relative to the inner tube 11.

[0052] Based on the interventional catheter described above, the interventional delivery system further includes an intervention handle connected to the proximal end of the interventional catheter. The intervention handle is located outside the body and is for the operator to operate to drive the inner tube 11 and the outer tube 12. In a demonstration example, the inner tube 11 can be fixedly connected to the intervention handle, and the intervention handle only needs to drive the outer tube 12 to move forward and backward along the axis to achieve the loading, release, or retrieval of the artificial valve prosthesis.

[0053] Please refer to Figures 1 to 6 , an embodiment of the present invention provides an intervention handle, which includes: a housing 2, an electric drive module 3, a manual drive module 4, a cover 5, and a control module (not shown); the housing 2 has an opening 20; the cover 5 is adapted to the opening 20 and detachably covers the opening 20; the electric drive module 3 is arranged in the housing 2, and the manual drive module 4 is arranged at the position of the housing 2 corresponding to the opening 20; the control module is configured to obtain the assembly information of whether the cover 5 covers the opening 20, and according to the assembly information, when the cover 5 covers the opening 20, switch the electric drive module 3 to the enabled mode; when the cover 5 is separated from the opening 20, switch the electric drive module 3 to the disabled mode. The electric drive module 3 and the manual drive module 4 are used to drive the outer tube 12 to move forward and backward along the axis of the housing 2.

[0054] It should be noted that the enabling mode means that the electric drive module 3 can output power, while the disabling mode means that the electric drive module 3 is turned off or disabled and does not output power. Optionally, regardless of whether it is enabled or not, the electric drive module 3 is coupled to the outer tube 12, and it controls whether to enable and output power in an electrical switching manner under the control of the control module. The electrical switching manner here can be, for example, sending an enabling control signal (such as a level signal) to the electric drive module 3 to disable or enable the electric drive module 3, or cutting off or connecting the power supply of the electric drive module 3. Those skilled in the art can configure it according to the prior art. The assembly information can be in the form of an electrical signal, such as a level signal. After the control module obtains the assembly information, it can accordingly switch the mode of the electric drive module 3.

[0055] As Figures 2 to 4 shown, in an alternative exemplary embodiment, the opening 20 on the housing 2 extends approximately half a circumference along the circumferential direction of the housing 2 and faces one side of the housing 2. Correspondingly, the cover 5 is generally saddle-shaped, and it can be buckled on the opening 20 and is generally flush with the surrounding housing 2, thereby covering and hiding the manual drive module 4 located at the opening 20. Further, an electric control button for controlling the electric drive module 3 is also provided on the housing 2. The electric control button includes a retraction (loading) button 61 and a release button 62. The retraction (loading) button 61 and the release button 62 are respectively communicatively connected to the control module. When the retraction (loading) button 61 is pressed, a forward signal is sent to the control module. After receiving the forward signal, the control module controls the electric drive module 3 to drive the outer tube 12 to move distally, that is, forward. When the release button 62 is pressed, a backward signal is sent to the control module. After receiving the backward signal, the control module controls the electric drive module 3 to drive the outer tube 12 to move proximally, that is, backward. Optionally, a power switch 63 is also provided on the housing 2, which is used to conduct and cut off the power supply to the control module and the electric drive module 3. It should be understood that Figures 2 to 4 the shown housing 2, opening 20 and cover 5 are only an exemplary embodiment and not a limitation. Those skilled in the art can configure the housing 2, opening 20 and cover 5 into other shapes according to the actual situation.

[0056] As Figure 5 and Figure 6As shown, optionally, the intervention handle includes a conversion module 7. The conversion module 7 is used to connect to the outer tube 12 of the intervention catheter and convert the power of the electric drive module 3 or the manual drive module 4 into the axial movement of the outer tube 12 along the housing 2. In an exemplary embodiment, the conversion module 7 includes a first lead screw 71 arranged axially along the housing 2, and a ball nut 72 threadedly connected to be rotatable around the first lead screw 71; the first lead screw 71 is used to connect to the outer tube 12 of the intervention catheter; the housing 2 defines the axial position of the ball nut 72 along the housing 2 and restricts the circumferential rotation of the first lead screw 71; the ball nut 72 is respectively connected to the electric drive module 3 and the manual drive module 4, and the ball nut 72 is used to rotate around the first lead screw 71 under the drive of the electric drive module 3 or the manual drive module 4 to drive the first lead screw 71 to move axially along the housing 2.

[0057] Optionally, the housing 2 has a rotation-limiting guide groove (not shown) extending axially. The first lead screw 71 only moves back and forth along the rotation-limiting guide groove and is restricted by the rotation-limiting guide groove and cannot rotate circumferentially. The ball nut 72 is restricted by the housing 2 and can only rotate circumferentially and cannot move axially.

[0058] Furthermore, the first lead screw 71 and the ball nut 72 are matched in a way that the ball is embedded in the arc thread. When the ball nut 72 rotates around the first lead screw 71, the ball can circulate in the ball nut 72 and drive the first lead screw 71 to move axially along the housing 2. Its specific structure can refer to the existing ball screw, and this embodiment will not be elaborated. Since the ball nut 72 is respectively connected to the electric drive module 3 and the manual drive module 4, the electric drive module 3 and the manual drive module 4 are equivalent to being coupled to the ball nut 72, and both the electric drive module 3 and the manual drive module 4 can output driving force to the ball nut 72.

[0059] In an alternative exemplary embodiment, the manual drive module 4 includes a first knob 41 coaxially connected to the ball nut 72. The first knob 41 and the ball nut 72 can be fixedly connected or integrally formed. The outer periphery of the first knob 41 has anti-slip teeth, and the operator can rotate the first knob 41 to rotate around the first lead screw 71, thereby driving the first lead screw 71 to move back and forth.

[0060] Optionally, the first lead screw 71 has an axially penetrating cavity 70 for the outer tube 12 of the interventional catheter to penetrate and be fixed therein, and the cavity 70 is also for the inner tube 11 of the interventional catheter to movably pass through. Optionally, the interventional handle includes an outer tube fixing member 73, which is an annular member having an inner hole axially penetrating the housing 2, and the inner hole allows the inner tube 11 to pass through. The outer tube fixing member 73 is disposed in the cavity 70 and fixedly connected to the first lead screw 71. The outer tube 12 penetrates into the cavity 70 from the distal end and is fixedly connected to the outer tube fixing member 73. The inner tube 11 penetrates into the cavity 70 from the distal end, passes through the inner hole of the outer tube fixing member 73, penetrates into the outer tube 12, and extends proximally. With such a configuration, the first lead screw 71 is fixed to the outer tube 12, and rotating the first knob 41 can drive the outer tube 12 to move forward and backward.

[0061] Optionally, the electric drive module 3 includes a motor 31 and a transmission member 32. The motor 31 is connected to the ball nut 72 through the transmission member 32. The motor 31 is configured to rotate under the control of the control module to output power. In a demonstration example, the transmission member 32 includes a first gear 321 fixedly connected to the ball nut 72 and a second gear 322 fixedly connected to the output shaft of the motor 31, and the first gear 321 meshes with the second gear 322 to achieve transmission. It can be understood that, in some other embodiments, the transmission member 32 is not limited to gear transmission, and other common transmission structures in the art such as belt transmission and friction wheel transmission can also be used. When the electric drive module 3 is in the enabled mode, the operator can control the forward and reverse rotation of the motor 31 by pressing the electric control button, so as to drive the outer tube 12 to move forward and backward. It can be understood that since the electric drive module 3 and the manual drive module 4 are equivalently coupled to the ball nut 72 at the same time, when the motor 31 rotates, the first knob 41 will also rotate. When the first knob 41 rotates, the motor 31 will also rotate. Optionally, the interventional handle further includes a battery 33 for providing energy for the motor 31 and the control module.

[0062] In order to achieve electric drive as the main operation mode under normal conventional control, in this embodiment, the manual drive module 4 is covered and hidden by setting the cover 5. When it is necessary to switch to manual drive, the cover 5 can be detached to expose the manual drive module 4. Further, in order to avoid accidentally touching the electric control button during manual drive, which may conflict with the manual drive and cause harm, the control module is configured to switch the electric drive module 3 to the disabled mode when the cover 5 is separated from the opening 20, that is, when the cover 5 is detached, the electric drive module 3 cannot output power. At this time, the retraction (loading) button 61 and the release button 62 are both invalid, that is, even if the operator presses the retraction (loading) button 61 or the release button 62, the electric drive module 3 will not respond and output power.

[0063] To achieve the detection of whether the cover body 5 is separated from the opening 20, optionally, the intervention handle includes a first sensor 81, which is disposed on the housing 2 corresponding to the opening 20 and is connected to the control module; the first sensor 81 is used to obtain the assembly information on whether the cover body 5 covers the opening 20; optionally, the first sensor 81 is a magnetic sensor, and a magnet 51 is provided at the position of the cover body 5 corresponding to the magnetic sensor. When the cover body 5 covers the opening 20, the magnet 51 approaches the first sensor 81. At this time, the first sensor 81 can sense the magnetic field of the magnet 51, thereby outputting the assembly information that the cover body 5 covers the opening 20 to the control module. Furthermore, the control module switches the electric drive module 3 to the enabled mode, that is, when the operator presses the retraction (loading) button 61 or releases the button 62 at this time, the electric drive module 3 will respond and output power accordingly. When the cover body 5 is separated from the opening 20, the first sensor 81 cannot sense the magnetic field of the magnet 51, thereby outputting the assembly information of the separation of the cover body 5 to the control module. Furthermore, the control module switches the electric drive module 3 to the disabled mode.

[0064] Please continue to refer to Figure 5 , optionally, the intervention handle includes a second sensor 82 and a third sensor 83. The second sensor 82 is used to obtain the distal stroke limit information of the first lead screw 71, and the third sensor 83 is used to obtain the proximal stroke limit information of the first lead screw 71; the control module prohibits the electric drive module 3 from driving the first lead screw 71 to move distally according to the distal stroke limit information; the control module prohibits the electric drive module 3 from driving the first lead screw 71 to move proximally according to the proximal stroke limit information. The settings of the second sensor 82 and the third sensor 83 can detect whether the stroke of the first lead screw 71 reaches the limit. When the limit is reached, corresponding information is sent to the control module so that the control module can prohibit the operation of the electric drive module 3.

[0065] In an alternative exemplary embodiment, the second sensor 82 and the third sensor 83 are magnetic sensors, and the first lead screw 71 has a magnet 74; the second sensor 82 is located on the distal side of the axial travel of the first lead screw 71, and the third sensor 83 is located on the proximal side of the axial travel of the first lead screw 71. When the first lead screw 71 moves along the housing 2 to the distal travel limit position, the magnet 74 is axially aligned with the second sensor 82; when the first lead screw 71 moves along the housing 2 to the proximal travel limit position, the magnet 74 is axially aligned with the third sensor 83. When the magnet 74 is axially aligned with the second sensor 82 or the third sensor 83, the second sensor 82 or the third sensor 83 can sense the magnetic field of the magnet 74, and thus output corresponding travel limit information to the control module to indicate the control module. After receiving the distal travel limit information from the second sensor 82, the control module prohibits the electric drive module 3 from driving the first lead screw 71 to move distally. At this time, when the recovery (loading) button 61 is pressed, the electric drive module 3 will not respond. However, when the release button 62 is pressed at this time, the electric drive module 3 will respond and drive the first lead screw 71 to move proximally. Conversely, after receiving the proximal travel limit information from the third sensor 83, the control module prohibits the electric drive module 3 from driving the first lead screw 71 to move proximally. At this time, when the release button 62 is pressed, the electric drive module 3 will not respond. However, when the recovery (loading) button 61 is pressed at this time, the electric drive module 3 will respond and drive the first lead screw 71 to move distally.

[0066] Of course, the above embodiments of the magnetic sensor are only an example of the first sensor 81, the second sensor 82, and the third sensor 83, rather than a limitation on the first sensor 81, the second sensor 82, and the third sensor 83. Those skilled in the art can also configure at least one of the first sensor 81, the second sensor 82, and the third sensor 83 as other in-place sensors, such as tactile switches, infrared sensors, ultrasonic sensors, etc. The present invention is not limited thereto.

[0067] Please refer to Figure 2 and Figure 4, Optionally, the cover body 5 and the housing 2 are provided with a matching connecting component, and the connecting component is used to apply a binding force towards the opening 20 to the cover body 5 to drive the cover body 5 to be assembled and connected to the opening 20. Optionally, the connecting component includes a first magnetic attraction component 52 and a second magnetic attraction component 21 that can attract each other. The first magnetic attraction component 52 is arranged on the cover body 5, and the second magnetic attraction component 21 is arranged at the opening 20. When the cover body 5 covers the opening 20, the cover body 5 is attracted to the opening 20 by magnetic force. In some embodiments, the first magnetic attraction component 52 and the second magnetic attraction component 21 can be, for example, a magnet and an attracted body that can be attracted by the magnet. The attracted body can be, for example, a ferromagnetic metal block, such as an iron block, a nickel block, or an iron-nickel alloy block, etc. In other embodiments, the first magnetic attraction component 52 and the second magnetic attraction component 21 can also be two magnets with opposite poles facing each other. It can be understood that a magnet and an attracted body can be attracted by magnetic force, and two magnets with opposite poles facing each other can also be attracted by magnetic force. In a demonstration example, a magnet is arranged on the cover body 5, and a magnet with the opposite pole to the magnet is arranged on the housing 2. When the cover body 5 covers the opening 20, the magnets approach or contact each other, thereby ensuring the magnetic attraction cooperation between the cover body 5 and the housing 2, and a certain force is required to remove it, preventing the cover body 5 from falling due to jolting. Of course, the connecting component is not limited to including the first magnetic attraction component 52 and the second magnetic attraction component 21 that can attract each other, and can also be other matching structures, such as snap connection, interference fit, or threaded connection, which can be configured by those skilled in the art according to the actual situation.

[0068] Further, please refer to Figures 2 to 4 , the cover body 5 and the housing 2 are provided with a matching engaging component. When the cover body 5 covers the opening 20, the cover body 5 is engaged with the opening 20 through the engaging component; wherein, the engaging component and the connecting component are arranged at both ends of the cover body 5 and the opening 20 at intervals along the axial direction of the housing 2. The matching engaging component can include, for example, a protruding buckle 53 and a slot 22 matching with the buckle 53. The buckle 53 can be inserted into the slot 22, so that the cover body 5 can be stably engaged on the opening 20. In Figures 2 to 4 the demonstration example shown, the buckle 53 is arranged on the distal side of the cover body 5, and the slot 22 is opened on the housing 2. Further, the first magnetic attraction component 52 is arranged on the proximal side of the cover body 5. Since the buckle 53 and the first magnetic attraction component 52 are respectively arranged at both ends of the cover body 5 along the axial direction of the housing 2, the cover body 5 and the housing 2 can be fixed at both ends axially, further improving the connection reliability between the cover body 5 and the housing 2. Of course, it can be understood that in other embodiments, the buckle 53 can also be arranged on the housing 2 and the slot 22 can be opened on the cover body 5.

[0069] Please refer toFigure 7 , optionally, the intervention handle includes an inner tube control module 9, the inner tube control module 9 includes a second lead screw 91 arranged along the axial direction of the housing 2, and a second knob 92 that is rotatably threadedly connected around the second lead screw 91; the housing 2 defines the axial position of the second knob 92 along the housing 2 and restricts the circumferential rotation of the second lead screw 91; the second lead screw 91 is used to connect with the inner tube 11 of the intervention catheter or a bending control wire (not shown), so as to drive the inner tube 11 or the bending control wire to move axially along the housing 2 under the driving of the rotation of the second knob 92.

[0070] It can be understood that since the axial position of the second knob 92 is defined and the circumferential rotation of the second lead screw 91 is defined, the second knob 92 and the second lead screw 91 constitute a set of screw drive components. The operator can drive the second lead screw 91 to move axially along the housing 2 by rotating the second knob 92 based on the screw conversion.

[0071] The inner tube control module 9 has different functions based on the different objects connected by its second lead screw 91. In one embodiment, a bending control wire (not shown) is included in the tube wall of the inner tube 11, and the bending control wire passes through the tube wall of the inner tube 11 at the proximal position of the inner tube 11. When pulling the bending control wire towards the proximal end, the inner tube 11 can be controlled to bend, and when relaxing the bending control wire towards the distal end, the inner tube 11 can return to a straight shape, thereby realizing the bending control of the intervention catheter. To adapt to different bending shapes of blood vessels, the operator can rotate the second knob 92 to tighten the bending control wire in the inner tube 11, so that the distal end (i.e., the distal end) of the intervention catheter bends to adapt to the blood vessel shape, which is convenient for the intervention delivery system to push the intervention catheter into the body, or to meet the requirements of making the intervention catheter coaxial and concentric with the blood vessel for reaching the target position of releasing the artificial valve prosthesis. Optionally, at this time, the inner tube 11 can be fixed to the housing 2 through an inner tube fixing member 93. By rotating the intervention handle, the inner tube 11 can be driven to rotate circumferentially, thereby determining the circumferential direction in which the distal end of the intervention catheter bends. The second lead screw 91 is connected to the bending control wire, and the bending of the inner tube 11 can be controlled through the second knob 92. That is, at this time, the inner tube control module 9 actually realizes the function of inner tube bending control.

[0072] In another embodiment, the inner tube 11 is connected to the second lead screw 91, so that the operator can control the inner tube 11 to move axially by rotating the second knob 92, that is, the inner tube 11 can be quickly retracted at this time. The position of the outer tube 12 is not limited at this time and can remain in the original position. At this time, the inner tube control module 9 actually realizes the function of quick inner tube retraction.

[0073] Optionally, the threads of the second lead screw 91 and the second knob 92 are trapezoidal threads, which have a self-locking function under axial load. When applying the inner tube bending function, the operator does not have to maintain the rotation position of the second knob 92. Instead, after bending the inner tube 11 to the desired bent shape, the operator can loosen the second knob 92. At this time, based on the self-locking effect of the trapezoidal thread, the axial position of the second lead screw 91 will be locked, that is, the bent shape of the inner tube 11 will not change until the operator rotates the second knob 92 again.

[0074] Optionally, the second knob 92 is rotatable relative to the housing 2 but has no axial displacement. In a demonstration example, the housing 2 can be provided with an annular groove 23, and the second knob 92 is provided with a convex ring 94. The cooperation of the two realizes the effect that the second knob 92 can rotate circumferentially but is axially limited. Further, a certain space 90 is reserved between the convex ring 94 and the annular groove 23. In some embodiments, a ring of balls can be placed in the reserved space 90 to change the sliding friction between the second knob 92 and the housing 2 to rolling friction, so as to solve the situation that the second knob 92 cannot rotate due to the excessive load transmitted by the bending wire of the second lead screw 91 to the second knob 92. If conditions permit, a lubricating oil can also be injected into this ring of balls to reduce the friction coefficient.

[0075] Preferably, the housing 2 has an observation window 24, and the observation window 24 has scales to indicate the rotation amount of the second knob 92. Through the observation window 24 and the scales, the operator can intuitively observe the control stroke of the inner tube control module 9 and understand, for example, the remaining stroke of the inner tube bending function.

[0076] Based on the above-mentioned intervention handle, an embodiment of the present invention further provides an intervention delivery system, which includes the above-mentioned intervention handle and an intervention catheter. The intervention catheter includes an outer tube 12, and the outer tube 12 is used to move axially along the housing 2 under the drive of the electric drive module 3 or the manual drive module 4. Further, the intervention catheter further includes an inner tube 11, and preferably further includes a stabilizing tube 13. One end of the stabilizing tube 13 is connected to the housing 2, and the other end is sleeved outside the outer tube 12, providing a stable channel for the intervention but not completely covering the outer tube 12. For other components and principles of the intervention delivery system, please refer to the prior art, and the present invention will not be elaborated further.

[0077] Please refer to Figures 8 to 17, in another embodiment, the structure of the manual driving module 4 is different from that of the foregoing embodiment. Specifically, the manual driving module 4 includes a clutch assembly 42 and a driving member 43, and the clutch assembly 42 has an engaged state and a disengaged state. When the clutch assembly 42 is in the engaged state, the driving member 43 is coupled to the conversion module 7 through the clutch assembly 42; when the clutch assembly 42 is in the disengaged state, the power transmission between the driving member 43 and the conversion module 7 is disconnected.

[0078] With such a configuration, based on the setting of the clutch assembly 42, the power transmission between the driving member 43 and the conversion module 7 can be freely switched. In combination with the setting of the cover body 5, when the cover body 5 is closed at the opening 20, the clutch assembly 42 can be switched to the disengaged state to disconnect the power transmission between the driving member 43 and the conversion module 7, and at the same time, the control module switches the electric driving module to the enabled mode to allow electric control. When manual driving is required, the cover body 5 can be separated from the housing 2 to expose the manual driving module 4, and then the clutch assembly 42 can be switched to the engaged state, so that the driving member 43 is coupled to the conversion module 7 through the clutch assembly 42, and thus the operator can achieve manual driving through the driving member 43.

[0079] Optionally, as Figures 9a to 9c shown, the driving member 43 can rotate circumferentially around the axis of the housing 2. Further, the engaged state includes a forward rotation engaged state and a reverse rotation engaged state; the driving member 43 is configured to transmit power to the conversion module 7 when rotating circumferentially in a direction adapted to the forward rotation engaged state or the reverse rotation engaged state; the driving member 43 is configured to slip and idle when rotating circumferentially in a direction opposite to the forward rotation engaged state or the reverse rotation engaged state. It should be noted that the forward rotation and the reverse rotation here refer to a set of circumferential rotation directions opposite to each other around the axis of the housing 2. For example, when the forward rotation is clockwise, the reverse rotation is counterclockwise. Of course, it can also be that the forward rotation is counterclockwise and the reverse rotation is clockwise, and this embodiment is not limited thereto.

[0080] Further, the forward rotation engaged state means that when the clutch assembly 42 is in this state, it can only be engaged in the forward rotation direction and cannot be engaged in the reverse rotation direction. Therefore, when the clutch assembly 42 is in the forward rotation engaged state, the forward rotation of the driving member 43 is adapted to the forward rotation engaged state, and at this time, the forward rotation of the driving member 43 can be transmitted to the conversion module 7 through the clutch assembly 42. The reverse rotation of the driving member 43 is opposite to the forward rotation engaged state, and the reverse rotation of the driving member 43 cannot be transmitted by the clutch assembly 42, and the driving member 43 slips and idles.

[0081] Similarly, the reverse rotation engagement state means that when the clutch assembly 42 is in this state, it can only engage in the reverse rotation direction and cannot engage in the forward rotation direction. Therefore, when the clutch assembly 42 is in the reverse rotation engagement state, the rotation of the driving member 43 in the reverse rotation direction is adapted to the reverse rotation engagement state. At this time, the reverse rotation of the driving member 43 can be transmitted to the conversion module 7 through the clutch assembly 42. The rotation of the driving member 43 in the forward rotation direction is opposite to the reverse rotation engagement state, and the rotation of the driving member 43 in the forward rotation direction cannot be transmitted by the clutch assembly 42, and the driving member 43 slips and idles.

[0082] Thus, when the clutch assembly 42 is in the forward rotation engagement state or the reverse rotation engagement state, the driving member 43 can only drive the conversion module 7 in one direction and idle in the other direction. In this way, the operator can toggle the driving member 43 back and forth, and can drive the outer tube 12 to continuously move in a certain direction along the axial direction of the housing 2 towards the proximal end or the distal end through the conversion module 7, which is convenient for operation and use.

[0083] Please refer to Figures 10 to 17 , in an alternative exemplary embodiment, the clutch assembly 42 includes a commutator 421, a forward rotation ratchet 422, and a reverse rotation ratchet 423; the conversion module 7 includes a toothed disk 75; the toothed disk 75 can be fixedly connected to the ball nut 72, for example; the commutator 421 is circumferentially rotatably arranged around the axis of the housing 2, the forward rotation ratchet 422 and the reverse rotation ratchet 423 are axially movably arranged along the housing 2, and the circumferential positions of the forward rotation ratchet 422 and the reverse rotation ratchet 423 relative to the driving member 43 are defined; when the commutator 421 rotates around the axis of the housing 2 to the vacant position, both the forward rotation ratchet 422 and the reverse rotation ratchet 423 are separated from the toothed disk 75, and the clutch assembly 42 is in the separated state; when the commutator 421 rotates around the axis of the housing 2 to the forward rotation position, the forward rotation ratchet 422 meshes with the toothed disk 75; when the driving member 43 rotates forward around the axis of the housing 2, the forward rotation ratchet 422 drives the toothed disk 75 to rotate forward; when the driving member 43 rotates in reverse around the axis of the housing 2, the forward rotation ratchet 422 slips with the toothed disk 75, and the forward rotation ratchet 422 idles; when the commutator 421 rotates around the axis of the housing 2 to the reverse rotation position, the reverse rotation ratchet 423 meshes with the toothed disk 75; when the driving member 43 rotates in reverse around the axis of the housing 2, the reverse rotation ratchet 423 drives the toothed disk 75 to rotate in reverse; when the driving member 43 rotates forward around the axis of the housing 2, the reverse rotation ratchet 423 slips with the toothed disk 75, and the reverse rotation ratchet 423 idles.

[0084] Optionally, please refer to Figures 8 to 12, the driving member 43 includes a lever 431 and a base 430, and the base 430 is rotatably arranged around the axis of the housing 2; the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 are axially movably arranged on the base 430 along the housing 2, and the circumferential positions of the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 relative to the base 430 are defined; the lever 431 is rotatably arranged on the base 430 between a storage position and a rotating position around a rotating shaft 432, and the rotating shaft 432 is perpendicular to the axis of the housing 2; when the lever 431 is in the storage position, it does not extend beyond the opening 20 to allow the cover 5 to cover the opening 20; when the lever 431 is in the rotating position, it extends radially along the housing 2.

[0085] In an alternative exemplary embodiment, the base 430 is annular and is rotatably arranged on the housing 2 around the axis of the housing 2 through a bearing 433. The forward-rotation ratchet 422 and the reverse-rotation ratchet 423 are arranged inside the base 430 and their circumferential positions are defined, that is, when the base 430 rotates circumferentially, it can drive the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 to rotate circumferentially together, but the base 430 does not limit the axial positions of the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 along the housing 2.

[0086] Furthermore, the lever 431 can rotate around the rotating shaft 432. When it is necessary to cover the opening 20 with the cover 5, the lever 431 can be rotated to the storage position so that it does not extend beyond the opening 20, thereby allowing the cover 5 to cover. When manual driving is required, the lever 431 can be rotated to the rotating position so that it extends radially along the housing 2 for easy operation by the operator. As Figures 9a to 9c shown, when the lever 431 is in the rotating position and the lever 431 is rotated circumferentially, the base 430 can be driven to rotate circumferentially. It can be understood that at this time, the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 inside the base 430 will also be driven to rotate circumferentially together.

[0087] Please refer to Figure 13a 、 Figure 13b and Figure 17 , the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 are a pair of ratchets with opposite directions, and they have ratchet teeth with opposite directions. The toothed disk 75 has rectangular teeth protruding axially. Taking the forward-rotation ratchet 422 as an example, when the forward-rotation ratchet 422 moves axially along the housing 2 towards the toothed disk 75 to a certain position, its ratchet teeth are engaged with the toothed disk 75, and at this time, it is said that the forward-rotation ratchet 422 is engaged with the toothed disk 75. When the forward-rotation ratchet 422 rotates in the forward-rotation direction (for example Figure 17In [description], the forward-rotation ratchet 422 rotates clockwise about the axis of the housing 2. The ratchet teeth of the forward-rotation ratchet 422 abut against the rectangular teeth of the gear disk 75 to push the gear disk 75 to rotate clockwise, thereby realizing the transmission of power. If the forward-rotation ratchet 422 rotates in the reverse-rotation direction (for example Figure 17 In [description], the forward-rotation ratchet 422 rotates counterclockwise about the axis of the housing 2), the ratchet teeth of the forward-rotation ratchet 422 slip due to the inclined plane, and the forward-rotation ratchet 422 cannot drive the gear disk 75 to rotate counterclockwise. The structure and principle of the reverse-rotation ratchet 423 are similar to those of the forward-rotation ratchet 422, except that the direction of the ratchet teeth of the reverse-rotation ratchet 423 is opposite to that of the ratchet teeth of the forward-rotation ratchet 422.

[0088] Furthermore, the axial movement of the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 along the housing 2 is driven based on the rotation of the commutator 421 about the axis of the housing 2. Please refer to Figure 15a and Figure 15b , the circumferential position of the commutator 421 includes three gear positions, namely the idle position, the forward-rotation position, and the reverse-rotation position. When the commutator 421 is in the idle position, both the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 are separated from the gear disk 75, and at this time the clutch assembly 42 is in the separated state. When the commutator 421 rotates circumferentially to the forward-rotation position, the forward-rotation ratchet 422 meshes with the gear disk 75. When the commutator 421 rotates circumferentially to the reverse-rotation position, the reverse-rotation ratchet 423 meshes with the gear disk 75. It can be understood that there are various ways for the commutator 421 to drive the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 to move axially along the housing 2. The following is demonstrated by an embodiment.

[0089] In an alternative exemplary example, the commutator 421 has a circumferentially extending forward-rotation limiting groove 4211 and a reverse-rotation limiting groove 4212. The forward-rotation ratchet 422 and the reverse-rotation ratchet 423 respectively have limiting posts (for the convenience of description, the limiting post of the forward-rotation ratchet 422 will be referred to as the forward-rotation limiting post hereinafter, and the limiting post of the reverse-rotation ratchet 423 will be referred to as the reverse-rotation limiting post 4231). The forward-rotation limiting post is movably inserted into the forward-rotation limiting groove 4211, and the reverse-rotation limiting post 4231 is movably inserted into the reverse-rotation limiting groove 4212. The forward-rotation limiting groove 4211 and the reverse-rotation limiting groove 4212 respectively have engaging recesses recessed toward the gear disk 75 (for the convenience of description, the engaging recess of the forward-rotation limiting groove 4211 will be referred to as the forward-rotation engaging recess 4213 hereinafter, and the engaging recess of the reverse-rotation limiting groove 4212 will be referred to as the reverse-rotation engaging recess 4214); when the commutator 421 is in the forward-rotation position, the forward-rotation limiting post abuts against the forward-rotation engaging recess 4213; when the commutator 421 is in the reverse-rotation position, the reverse-rotation limiting post 4231 abuts against the reverse-rotation engaging recess 4214.

[0090] Taking the positive rotation limiting groove 4211 as an example for illustration, the positive rotation meshing recess 4213 is recessed towards the gear disk 75. Therefore, when the positive rotation limiting post rotates circumferentially with the positive rotation ratchet 422 to the position of the positive rotation meshing recess 4213, the entire positive rotation ratchet 422 can move towards the gear disk 75, thereby achieving meshing with the gear disk 75.

[0091] Optionally, the positive rotation limiting groove 4211 and the reverse rotation limiting groove 4212 respectively have empty recesses (for the convenience of description, the empty recess of the positive rotation limiting groove 4211 will be referred to as the positive rotation empty recess 4215 hereinafter, and the empty recess of the reverse rotation limiting groove 4212 will be referred to as the reverse rotation empty recess 4216 hereinafter). The empty recess is farther from the gear disk 75 than the meshing recess, that is, the positive rotation empty recess 4215 is farther from the gear disk 75 than the positive rotation meshing recess 4213, and the reverse rotation empty recess 4216 is farther from the gear disk 75 than the reverse rotation meshing recess 4214. When the commutator 421 is in the empty position, the positive rotation limiting post abuts against the positive rotation empty recess 4215, and the reverse rotation limiting post 4231 abuts against the reverse rotation empty recess 4216.

[0092] Taking the positive rotation limiting groove 4211 as an example for illustration again, the positive rotation empty recess 4215 is recessed towards the gear disk 75 and is farther from the gear disk 75 than the positive rotation meshing recess 4213. Therefore, when the positive rotation limiting post rotates circumferentially with the positive rotation ratchet 422 to the position of the positive rotation empty recess 4215, the positive rotation ratchet 422 moves away from the gear disk 75 relative to the meshing position, thereby achieving separation from the gear disk 75. Further, the positive rotation limiting post abuts in the positive rotation empty recess 4215, which can form a gear position when the commutator 421 rotates, ensuring that the commutator 421 can be reliably positioned in the empty position when not rotated by the operator, and preventing the positive rotation ratchet 422 or the reverse rotation ratchet 423 from affecting the normal operation of the electric drive module 3.

[0093] In some embodiments, the positive rotation ratchet 422 is pushed to move towards the gear disk 75, which can be achieved by the push of the commutator 421. For example, the width of the positive rotation limiting groove 4211 along the axial direction of the housing 2 can be configured to match the outer diameter of the positive rotation limiting post, and while the positive rotation limiting groove 4211 extends circumferentially, it is inclined along the axial direction of the housing 2. In this way, when the commutator 421 rotates circumferentially, the positive rotation limiting groove 4211 can push the positive rotation ratchet 422 to move along the axial direction of the housing 2. The structure and principle of the reverse rotation limiting groove 4212 are similar to those of the positive rotation limiting groove 4211 and will not be repeated here.

[0094] Preferably, the clutch assembly 42 further includes a potential energy member 424 for applying a potential force towards the direction of the toothed disc 75 to the forward rotation ratchet 422 and the reverse rotation ratchet 423. In some embodiments, the forward rotation ratchet 422 and the reverse rotation ratchet 423 do not move towards the toothed disc 75 based on the push of the commutator 421, but are realized based on the push of the additionally provided potential energy member 424. Please refer to Figure 13a and Figure 13b , the potential energy member 424 can be, for example, an elastic potential energy member such as a shrapnel or a spring, or a magnetic potential energy member composed of magnet blocks with like poles facing each other. This embodiment is not limited thereto. One end of the potential energy member 424 along the axial direction of the housing 2 is connected to the forward rotation ratchet 422 and the reverse rotation ratchet 423, and the other end is connected to the driving member 43, such as the base 430. In this way, when the commutator 421 rotates circumferentially, it can maintain the potential force applied to the forward rotation ratchet 422 and the reverse rotation ratchet 423 towards the toothed disc 75, ensuring reliable engagement between the forward rotation ratchet 422 or the reverse rotation ratchet 423 and the toothed disc 75.

[0095] Furthermore, the commutator 421 and the toothed disc 75 are connected by a point contact member 425. The point contact member 425 can be, for example, components such as a hemisphere, a dot-shaped protrusion, or a ball. Preferably, the point contact members 425 can be evenly arranged along the circumferential direction of the commutator 421. Since there is an axial force between the commutator 421 and the forward rotation ratchet 422 and the reverse rotation ratchet 423, to ensure reliable engagement between the forward rotation ratchet 422 and the reverse rotation ratchet 423 and the toothed disc 75, the commutator 421 should not be far from the toothed disc 75 to avoid looseness and affect the accuracy. When the outer driving tube 12 moves axially, the ball nut 72 and the toothed disc 75 need to rotate circumferentially, while the commutator 421 may not rotate circumferentially or the rotation amount does not match the rotation of the toothed disc 75 whether in the manual driving mode or the electric driving mode. Therefore, setting the point contact member 425 between the commutator 421 and the toothed disc 75 can effectively reduce the frictional resistance between the commutator 421 and the toothed disc 75.

[0096] Optionally, the forward rotation limiting groove 4211 has a forward rotation transition slope 4217 connecting between the forward rotation engagement recess 4213 and the forward rotation idle recess 4215; the reverse rotation limiting groove 4212 has a reverse rotation transition slope 4218 connecting between the reverse rotation engagement recess 4214 and the reverse rotation idle recess 4216. The forward rotation transition slope 4217 is used to smoothly connect the forward rotation engagement recess 4213 and the forward rotation idle recess 4215, and the reverse rotation transition slope 4218 is used to smoothly connect the reverse rotation engagement recess 4214 and the reverse rotation idle recess 4216, so that when the commutator 421 rotates circumferentially, it can gently push the forward rotation ratchet 422 and the reverse rotation ratchet 423 to move axially along the housing 2.

[0097] Optionally, refer to Figure 10 and Figure 17 , the clutch assembly 42 further includes a reversing knob 426, the reversing knob 426 is arranged on the commutator 421 and passes through the base 430; the lever 431 has an avoidance hole 434, when the commutator 421 is in the vacant position, the avoidance hole 434 is aligned with the reversing knob 426 and allows the reversing knob 426 to penetrate, so as to allow the lever 431 to rotate to the storage position. Optionally, the base 430 has a knob groove 435 opened circumferentially, one end of the reversing knob 426 is arranged on the commutator 421, and the other end passes out of the knob groove 435.

[0098] In an alternative exemplary embodiment, the commutator 421 is annular, and the base 430 is sleeved on the outer periphery of the commutator 421. The reversing knob 426 protrudes radially on the outer periphery of the commutator 421 and passes through the knob groove 435 of the base 430 for easy operation by the operator. The setting of the avoidance hole 434 enables the reversing knob 426 to be received therein when the lever 431 rotates to the storage position, so that the lever 431 and the reversing knob 426 do not cross and overlap and protrude outside the opening 20, thereby making full use of the space of the opening 20 and reducing the volume of the intervening handle.

[0099] Furthermore, the reversing knob 426 is aligned with the avoidance hole 434 only when the commutator 421 is in the vacant position, ensuring that when the lever 431 is switched to the storage position, the entire clutch assembly 42 must be in a separated state, so as to ensure that in the scenario where the cover 5 is closed on the opening 20 and the electric drive is used, the manual drive module 4 inside the cover 5 does not interfere with the drive of the electric drive module 3.

[0100] Even further, the inner dimension of the avoidance hole 434 is preferably matched with the outer contour dimension of the reversing knob 426. When the reversing knob 426 penetrates into the avoidance hole 434, it can limit the circumferential position of the lever 431, ensuring that the lever 431 does not rotate circumferentially. Equivalent to a double-insurance method, it ensures that the manual drive module 4 does not interfere with the drive of the electric drive module 3.

[0101] In summary, in the interventional handle and interventional delivery system provided by the present invention, the interventional handle includes a housing, an electric drive module, a manual drive module, a cover body, and a control module; the housing has an opening; the cover body is adapted to the opening and detachably covers the opening; the electric drive module is disposed in the housing, and the manual drive module is disposed at the housing corresponding to the opening; the control module is configured to obtain the assembly information on whether the cover body covers the opening, and based on the assembly information, when the cover body covers the opening, switch the electric drive module to an enabled mode; when the cover body is separated from the opening, switch the electric drive module to a disabled mode. With such a configuration, when the cover body covers the opening, the control module switches the electric drive module to the enabled mode, that is, electric control is allowed. At the same time, the cover body hides the manual drive module by covering the opening, optimizing the layout of the interventional handle and allowing more other functional modules to be arranged. When manual drive is required, the cover body can be separated from the housing to expose the manual drive module, so that manual drive can be realized.

[0102] It should be noted that the above-mentioned several embodiments can be combined with each other. The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art of the present invention based on the above disclosure are within the protection scope of the claims.

Claims

1. An interventional handle, characterized in that, Comprising: A housing, an electric drive module, a manual drive module, a cover body, and a control module; The housing has an opening; the cover body is adapted to the opening and detachably covers the opening; the electric drive module is disposed in the housing, and the manual drive module is disposed in the housing corresponding to the opening; The control module is configured to obtain the assembly information on whether the cover body covers the opening, and based on the assembly information, when the cover body covers the opening, switch the electric drive module to the enabled mode; when the cover body is separated from the opening, switch the electric drive module to the disabled mode.

2. The interventional handle according to claim 1, wherein, The access handle includes a first sensor, the first sensor is disposed in the housing corresponding to the opening and is connected to the control module; the first sensor is used to obtain the assembly information on whether the cover body covers the opening.

3. The interventional handle according to claim 2, wherein, The first sensor is a magnetic sensor, and the cover body has a magnet at a position corresponding to the magnetic sensor.

4. The interventional handle according to claim 1, characterized in that, The access handle includes a mating connection component, and the connection component is used to apply a binding force towards the opening to the cover body to drive the cover body to be assembled and connected to the opening.

5. The interventional handle according to claim 4, wherein The connection component includes a first magnetic attraction component and a second magnetic attraction component that can be attracted to each other. The first magnetic attraction component is disposed on the cover body, and the second magnetic attraction component is disposed at the opening. When the cover body covers the opening, the cover body is attracted to the opening by magnetic force.

6. The interventional handle according to claim 5, characterized in that, The cover body and the housing have mating engagement components. When the cover body covers the opening, the cover body is engaged with the opening through the engagement components; wherein, the engagement components and the connection components are arranged at both ends of the cover body and the opening at intervals along the axial direction of the housing.

7. The interventional handle according to claim 1, characterized in that, The access handle includes a conversion module, and the conversion module includes a first lead screw disposed along the axial direction of the housing, and a ball nut that is rotatably threadedly connected around the first lead screw; the first lead screw is used to connect to the outer tube of the access catheter; The housing defines the axial position of the ball nut along the housing and restricts the circumferential rotation of the first lead screw; the ball nut is respectively connected to the electric drive module and the manual drive module, and the ball nut is used to rotate around the first lead screw under the drive of the electric drive module or the manual drive module to drive the first lead screw to move axially along the housing.

8. The interventional handle according to claim 7, characterized in that, The manual drive module includes a first knob coaxially connected to the ball nut; the electric drive module includes a motor and a transmission member, and the motor is connected to the ball nut through the transmission member.

9. The interventional handle according to claim 7, characterized in that, The access handle includes a second sensor and a third sensor. The second sensor is used to obtain the distal stroke limit information of the first lead screw, and the third sensor is used to obtain the proximal stroke limit information of the first lead screw; The control module prohibits the electric drive module from driving the first lead screw to move distally based on the distal stroke limit information; Based on the proximal travel limit information, the control module prohibits the electric drive module from driving the first lead screw to move towards the proximal end.

10. The interventional handle according to claim 9, wherein, The second sensor and the third sensor are magnetic sensors, and the first lead screw has a magnet; when the first lead screw moves along the housing to the distal travel limit position, the magnet is axially aligned with the second sensor; when the first lead screw moves along the housing to the proximal travel limit position, the magnet is axially aligned with the third sensor.

11. The interventional handle according to claim 7, characterized in that, The first lead screw has an axially penetrating cavity for the outer tube of the interventional catheter to penetrate and be fixed, and the cavity is also for the inner tube of the interventional catheter to movably pass through.

12. The interventional handle according to claim 1, characterized in that, The interventional handle includes an inner tube control module, the inner tube control module includes a second lead screw axially arranged along the housing, and a second knob threadedly connected around the second lead screw and rotatable; the housing defines the axial position of the second knob along the housing and restricts the circumferential rotation of the second lead screw; The second lead screw is used to connect with the inner tube or the bending control wire of the interventional catheter, so as to drive the inner tube or the bending control wire to move axially along the housing under the rotation drive of the second knob.

13. The interventional handle according to claim 12, characterized in that, The housing has an observation window with scales to indicate the rotation amount of the second knob.

14. An interventional delivery system, characterized in that, An interventional handle according to any one of claims 1 to 13, further comprising an interventional catheter, the interventional catheter including an outer tube for moving axially along the housing under the drive of the electric drive module or the manual drive module.

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