Interventional Handle and Interventional Delivery System

Abstract

The present invention provides an interventional handle and an interventional delivery system. The interventional handle includes a manual driving module and a conversion module; the manual driving module includes a clutch assembly and a driving member, and the clutch assembly has an engaged state and a disengaged state; the conversion module is used to connect with the outer tube of the interventional catheter and convert the power of the manual driving module into the axial movement of the outer tube along the housing; when the clutch assembly is in the engaged state, the driving member is coupled to the conversion module through the clutch assembly; when the clutch assembly is in the disengaged state, the power transmission between the driving member and the conversion module is disconnected. With such a configuration, when manual driving is required, the driving member can be coupled to the conversion module by using the clutch assembly, so that manual driving can be realized. On the contrary, when converting from manual driving to electric driving, the power transmission between the driving member and the conversion module can also be disconnected by using the clutch assembly to avoid the manual driving module interfering with the electric driving.

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, fast 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 purely manual handles use screw pairs to achieve transmission; electric handles use combinations 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, hybrid power handles have 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 manual drive module and a conversion module;

[0006] The manual drive module includes a clutch assembly and a driving member, and the clutch assembly has an engaged state and a disengaged state;

[0007] The conversion module is used to connect with the outer tube of the interventional catheter and convert the power of the manual drive module into the axial movement of the outer tube along the housing;

[0008] When the clutch assembly is in the engaged state, the driving member is coupled to the conversion module through the clutch assembly; when the clutch assembly is in the disengaged state, the power transmission between the driving member and the conversion module is disconnected.

[0009] Optionally, the engaged state includes a forward rotation engaged state and a reverse rotation engaged state; the driving member is configured to transmit power to the conversion module when circumferentially rotating in a direction adapted to the forward rotation engaged state or the reverse rotation engaged state; the driving member is configured to slip and idle when circumferentially rotating in a direction opposite to the forward rotation engaged state or the reverse rotation engaged state.

[0010] Optionally, the clutch assembly includes a commutator, a forward rotation ratchet, and a reverse rotation ratchet; the conversion module includes a toothed disk.

[0011] The commutator is circumferentially rotatably arranged around the axis of the housing, the forward rotation ratchet and the reverse rotation ratchet are axially movably arranged along the housing, and the circumferential positions of the forward rotation ratchet and the reverse rotation ratchet relative to the driving member are defined.

[0012] When the commutator rotates around the axis of the housing to the vacant position, both the forward rotation ratchet and the reverse rotation ratchet are separated from the toothed disk, and the clutch assembly is in the disengaged state.

[0013] When the commutator rotates around the axis of the housing to the forward rotation position, the forward rotation ratchet meshes with the toothed disk; when the driving member rotates forward around the axis of the housing, the toothed disk is driven to rotate forward through the forward rotation ratchet; when the driving member rotates reversely around the axis of the housing, the forward rotation ratchet slips with the toothed disk, and the forward rotation ratchet idles.

[0014] When the commutator rotates around the axis of the housing to the reverse rotation position, the reverse rotation ratchet meshes with the toothed disk; when the driving member rotates reversely around the axis of the housing, the toothed disk is driven to rotate reversely through the reverse rotation ratchet; when the driving member rotates forward around the axis of the housing, the reverse rotation ratchet slips with the toothed disk, and the reverse rotation ratchet idles.

[0015] Optionally, the commutator has a circumferentially extending forward rotation limit groove and a reverse rotation limit groove, the forward rotation ratchet and the reverse rotation ratchet respectively have limit posts, the limit post of the forward rotation ratchet is movably inserted into the forward rotation limit groove, the limit post of the reverse rotation ratchet is movably inserted into the reverse rotation limit groove, and the forward rotation limit groove and the reverse rotation limit groove respectively have engagement recesses recessed towards the toothed disk.

[0016] When the commutator is in the forward rotation position, the limiting post of the forward rotation ratchet abuts against the meshing recess of the forward rotation limiting groove; when the commutator is in the reverse rotation position, the limiting post of the reverse rotation ratchet abuts against the meshing recess of the reverse rotation limiting groove.

[0017] Optionally, the forward rotation limiting groove and the reverse rotation limiting groove respectively have empty recesses, and the empty recesses are farther from the tooth disc than the meshing recesses; when the commutator is in the empty position, the limiting post of the forward rotation ratchet abuts against the empty recess of the forward rotation limiting groove, and the limiting post of the reverse rotation ratchet abuts against the empty recess of the reverse rotation limiting groove.

[0018] Optionally, the forward rotation limiting groove has a forward rotation transition slope surface, and the forward rotation transition slope surface is connected between the meshing recess and the empty recess of the forward rotation limiting groove; the reverse rotation limiting groove has a reverse rotation transition slope surface, and the reverse rotation transition slope surface is connected between the meshing recess and the empty recess of the reverse rotation limiting groove.

[0019] Optionally, the clutch assembly further includes a potential energy member, and the potential energy member is used to apply a potential force towards the tooth disc direction to the forward rotation ratchet and the reverse rotation ratchet.

[0020] Optionally, the commutator and the tooth disc are connected by a point contact member.

[0021] Optionally, the driving member includes a lever and a base, and the base is rotatably arranged around the axis of the housing; the forward rotation ratchet and the reverse rotation ratchet are axially movably arranged on the base along the housing, and the circumferential positions of the forward rotation ratchet and the reverse rotation ratchet relative to the base are defined;

[0022] The lever is rotatably arranged on the base between a storage position and a dialing position around a rotating shaft, and the rotating shaft is perpendicular to the axis of the housing; when the lever is in the storage position, it does not protrude beyond the opening to allow the cover to cover the opening; when the lever is in the dialing position, it extends radially along the housing.

[0023] Optionally, the clutch assembly further includes a commutation dial button, and the commutation dial button is arranged on the commutator and passes through the base; the lever has an avoidance hole, and when the commutator is in the empty position, the avoidance hole is aligned with the commutation dial button and allows the commutation dial button to penetrate, so as to allow the lever to rotate to the storage position.

[0024] Optionally, the base is in a ring shape and sleeved on the outer periphery of the commutator; the base has a dial button groove opened circumferentially, one end of the commutation dial button is arranged on the commutator, and the other end passes through the dial button groove.

[0025] Optionally, the intervention handle further includes: a housing, an electric drive module, a cover, and a control module; the conversion module is further configured to convert the power of the electric drive module into the axial movement of the outer tube along the housing.

[0026] The housing has an opening; the cover 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.

[0027] The control module is configured to obtain the assembly information on whether the cover covers the opening, and based on the assembly information, when the cover covers the opening, switch the electric drive module to the enabled mode; when the cover is separated from the opening, switch the electric drive module to the disabled mode.

[0028] To solve the above technical problems, the present invention further provides an intervention delivery system, which includes the intervention handle as described above, and further includes an intervention catheter, and the intervention catheter includes an outer tube, and the outer tube is at least configured to axially move along the housing under the drive of the manual drive module.

[0029] In summary, in the intervention handle and the intervention delivery system provided by the present invention, the intervention handle includes a manual drive module and a conversion module; the manual drive module includes a clutch assembly and a driving member, and the clutch assembly has an engaged state and a separated state; the conversion module is configured to be connected to the outer tube of the intervention catheter and convert the power of the manual drive module into the axial movement of the outer tube along the housing; when the clutch assembly is in the engaged state, the driving member is coupled to the conversion module through the clutch assembly; when the clutch assembly is in the separated state, the power transmission between the driving member and the conversion module is disconnected.

[0030] With such a configuration, when manual driving is required, the driving member can be coupled to the conversion module by using the clutch assembly, so that manual driving can be realized. On the contrary, when converting from manual driving to electric driving, the power transmission between the driving member and the conversion module can also be disconnected by using the clutch assembly to avoid the manual drive module interfering with the electric drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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:

[0032] Figure 1 is a schematic diagram of the intervention handle according to an embodiment of the present invention, where the cover covers the opening.

[0033] Figure 2It is a schematic diagram of the intervention handle according to an embodiment of the present invention, where the cover body is separated from the housing.

[0034] Figure 3 It is a schematic diagram of the cover body according to an embodiment of the present invention.

[0035] Figure 4 It is a schematic diagram of the axial cross-section of the cover body according to an embodiment of the present invention.

[0036] Figure 5 It is a schematic diagram of the axial cross-section of the intervention handle according to an embodiment of the present invention.

[0037] Figure 6 It is a partial enlarged view of the electric drive module and the manual drive module according to an embodiment of the present invention.

[0038] Figure 7 It is a partial enlarged view of the inner tube control module according to an embodiment of the present invention.

[0039] Figure 8 It is a schematic diagram of the intervention handle according to another embodiment of the present invention, where the cover body is separated from the housing.

[0040] 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.

[0041] Figure 10 It is a schematic diagram of the manual drive module according to another embodiment of the present invention.

[0042] Figure 11 It is a side view of the manual drive module according to another embodiment of the present invention.

[0043] Figure 12 It is a schematic diagram of the axial cross-section of the manual drive module according to another embodiment of the present invention.

[0044] Figure 13a 、 Figure 13b It is a schematic diagram of the positive rotation ratchet and the reverse rotation ratchet according to another embodiment of the present invention.

[0045] Figure 14 It is a schematic diagram of the commutator according to another embodiment of the present invention.

[0046] Figure 15a It is a schematic diagram of the commutator in the vacant position according to another embodiment of the present invention.

[0047] Figure 15b It is a schematic diagram of the commutator in the positive rotation position according to another embodiment of the present invention.

[0048] Figure 16 It is a top view of the clutch assembly in the separated state according to another embodiment of the present invention.

[0049] Figure 17It is a schematic diagram of the clutch assembly in the positive rotation meshing state of another embodiment of the present invention.

[0050] In the drawings:

[0051] 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 member; 321 - First gear; 322 - Second gear; 33 - Battery; 4 - Manual drive module; 41 - First knob; 42 - Clutch assembly; 421 - Commutator; 4211 - Positive rotation limit slot; 4212 - Reverse rotation limit slot; 4213 - Positive rotation meshing recess; 4214 - Reverse rotation meshing recess; 4215 - Positive rotation idle recess; 4216 - Reverse rotation idle recess; 4217 - Positive rotation transition slope; 4218 - Reverse rotation transition slope; 422 - Positive rotation ratchet; 423 - Reverse rotation ratchet; 4231 - Reverse rotation limit post; 424 - Potential energy component; 425 - Point contact component; 426 - Commutation dial; 43 - Driving member; 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 - Buckle; 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 member; 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 member; 94 - Convex ring. Detailed implementation manners

[0052] 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 are 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 emphases to be shown in each of the accompanying drawings are different, and sometimes different scales are used.

[0053] 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 interventional 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 an application scenario of manual or hand operation, 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 that there is a connection, coupling, cooperation or transmission relationship between the two elements, and the two elements can be directly or indirectly connected, coupled, cooperated or transmitted through an intermediate element, rather than being construed as indicating or implying the spatial position relationship between the two elements, that is, an element can be in any orientation such as inside, outside, above, below or on one side of another element, unless otherwise explicitly specified in the content. 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, and 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.

[0054] The object 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.

[0055] The following is a description with reference to the accompanying drawings.

[0056] 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 at the native annulus). The interventional delivery system includes an interventional catheter, and the artificial valve prosthesis can be loaded onto the interventional catheter and move forward and backward therewith.

[0057] 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 retracts proximally relative to the inner tube 11, exposing (or partially exposing) the artificial valve prosthesis. The stent of the artificial valve prosthesis can be self-expanding and expand to fit the native annulus of the implantation site, completing the implantation. The recovery process 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 recovery 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.

[0058] Based on the interventional catheter described above, the interventional delivery system further includes an interventional handle connected to the proximal end of the interventional catheter. The interventional 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 interventional handle, and the interventional handle only needs to drive the outer tube 12 to move forward and backward along the axis to achieve the loading, release, or recovery of the artificial valve prosthesis.

[0059] Please refer to Figures 1 to 6 , an embodiment of the present invention provides an interventional handle, which includes: a manual driving module 4 for driving the outer tube 12 to move forward and backward along the axis of the housing 2. Preferably, the interventional handle further includes a housing 2, an electric driving module 3, 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 driving module 3 is arranged in the housing 2, and the manual driving 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 on whether the cover 5 covers the opening 20, and based on the assembly information, switch the electric driving module 3 to the enabled mode when the cover 5 covers the opening 20; and switch the electric driving module 3 to the disabled mode when the cover 5 is separated from the opening 20. The electric driving module 3 and the manual driving module 4 are used to drive the outer tube 12 to move forward and backward along the axis of the housing 2.

[0060] It should be noted that the enabled mode means that the electric drive module 3 can output power, and the disabled mode means that the electric drive module 3 is turned off or disabled and does not output power. Optionally, the electric drive module 3 is coupled to the outer tube 12 regardless of whether it is enabled or not. It controls whether to be enabled and output power through an electrical switching method under the control of the control module. The electrical switching method here can be, for example, sending an enable 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.

[0061] 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 body 5 is generally in a saddle shape, which can be buckled on the opening 20 and is generally flush with the surrounding housing 2, so as to cover and hide 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 retract (load) button 61 and a release button 62. The retract (load) button 61 and the release button 62 are respectively communicatively connected to the control module. When the retract (load) 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 body 5 are only an exemplary embodiment and not a limitation. Those skilled in the art can configure the housing 2, opening 20 and cover body 5 into other shapes according to the actual situation.

[0062] As Figure 5 and Figure 6As shown, optionally, the intervention handle includes a conversion module 7, which is used to connect with the outer tube 12 of the intervention catheter and convert the power of the manual driving module 4 into the axial movement of the outer tube 12 along the housing 2. Preferably, the conversion module 7 is also used to convert the power of the electric driving module 3 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 along the axial direction of 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 with 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 driving module 3 and the manual driving module 4, and the ball nut 72 is used to rotate around the first lead screw 71 under the drive of the electric driving module 3 or the manual driving module 4 to drive the first lead screw 71 to move axially along the housing 2.

[0063] 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.

[0064] 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 driving module 3 and the manual driving module 4, the electric driving module 3 and the manual driving module 4 are equivalent to being coupled to the ball nut 72, and both the electric driving module 3 and the manual driving module 4 can output driving force to the ball nut 72.

[0065] In an alternative exemplary embodiment, the manual driving 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.

[0066] Optionally, the first lead screw 71 has an axially penetrating cavity 70 for the outer tube 12 of the intervention catheter to penetrate and be fixed, and the cavity 70 is also for the inner tube 11 of the intervention catheter to movably penetrate. Optionally, the intervention handle includes an outer tube fixing member 73, which is an annular member having an inner hole penetrating axially along the housing 2, and this inner hole allows the inner tube 11 to penetrate. 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 back and forth.

[0067] 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 used 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. The first gear 321 meshes with the second gear 322 to achieve transmission. Of course, it can be understood that in some other embodiments, the transmission member 32 is not limited to gear transmission and can also adopt common transmission structures in the art such as belt transmission and friction wheel transmission. 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 back and forth. 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 intervention handle further includes a battery 33 for providing energy for the motor 31 and the control module.

[0068] 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 and conflicting with the manual drive to cause harm during manual drive, 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 to output power.

[0069] 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. The first sensor 81 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 of whether the cover body 5 is covered on the opening 20. Optionally, the first sensor 81 is a magnetic sensor, and the cover body 5 has a magnet 51 at a position corresponding to the magnetic sensor. When the cover body 5 is covered on 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 is covered on the opening 20 to the control module. Further, the control module switches the electric drive module 3 to the enabled mode. That is, when the operator presses the recovery (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. Further, the control module switches the electric drive module 3 to the disabled mode.

[0070] 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.

[0071] 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 stroke of the first lead screw 71, and the third sensor 83 is located on the proximal side of the axial stroke of the first lead screw 71. When the first lead screw 71 moves along the housing 2 to the distal stroke 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 stroke 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, thereby outputting corresponding stroke limit information to the control module to indicate the control module. After receiving the distal stroke 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 stroke 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.

[0072] Of course, the above embodiments of the magnetic sensors 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-position sensors, such as touch switches, infrared sensors, ultrasonic sensors, etc. The present invention is not limited thereto.

[0073] Please refer to Figure 2 and Figure 4, Optionally, the cover body 5 and the housing 2 are provided with matching connecting components for applying 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 components include 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. 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, thus ensuring the magnetic attraction cooperation between the cover body 5 and the housing 2, and a certain force is required to remove the cover body 5 to prevent the cover body 5 from falling due to jolting. Of course, the connecting components are 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 screw connection, which can be configured by those skilled in the art according to the actual situation.

[0074] Further, please refer to Figures 2 to 4 , the cover body 5 and the housing 2 are provided with matching engaging components. When the cover body 5 covers the opening 20, the cover body 5 is engaged with the opening 20 through the engaging components; wherein, the engaging components and the connecting components 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 components can include, for example, a protruding snap 53 and a slot 22 adapted to the snap 53. The snap 53 can be snapped 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 snap 53 is arranged on the distal side of the cover body 5, and the slot 22 is formed on the housing 2. Further, the first magnetic attraction component 52 is arranged on the proximal side of the cover body 5. Since the snap 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 axial ends respectively, 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 snap 53 can also be arranged on the housing 2 and the slot 22 can be formed on the cover body 5.

[0075] 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 to 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.

[0076] 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 threaded 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 conversion of the thread.

[0077] The inner tube control module 9 has different functions based on the different objects connected by its second lead screw 91. In one embodiment, the inner wall of the inner tube 11 contains a bending control wire (not shown), and the bending control wire passes through the inner 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 requirement of making the intervention catheter coaxial and concentric with the blood vessel to reach the target position for 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 inner tube bending control function.

[0078] 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 its original position. At this time, the inner tube control module 9 actually realizes the inner tube quick retraction function.

[0079] 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 applied to 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 threads, 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.

[0080] Optionally, the second knob 92 is rotatable relative to the housing 2 but has no axial displacement. In one exemplary embodiment, the housing 2 may 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 is circumferentially rotatable but 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 ball bearings can be placed in the reserved space 90 to change the sliding friction of the second knob 92 relative to the housing 2 into rolling friction, so as to solve the situation that the second knob 92 cannot be rotated due to the excessive load transmitted by the bending wire to the second knob 92 on the second lead screw 91. If conditions permit, a lubricating oil can also be injected into this ring of ball bearings to reduce the friction coefficient.

[0081] 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 magnitude of the stroke margin of the inner tube bending function.

[0082] Based on the above-described intervention handle, an embodiment of the present invention further provides an intervention delivery system, which includes the above-described intervention handle and further includes an intervention catheter. The intervention catheter includes an outer tube 12, and the outer tube 12 is configured 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, reference may be made to the prior art, and the present invention will not be elaborated herein.

[0083] 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.

[0084] 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. Combining with the setting of the cover body 5, when the cover body 5 is closed on 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, so that the operator can achieve manual driving through the driving member 43.

[0085] 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.

[0086] 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. 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.

[0087] 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.

[0088] 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 towards the proximal end or the distal end along the axial direction of the housing 2 through the conversion module 7, which is convenient for operation and use.

[0089] 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 toothed disk 75 is driven to rotate forward through the forward rotation ratchet 422; 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 toothed disk 75 is driven to rotate in reverse through the reverse rotation ratchet 423; 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.

[0090] 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 dialing 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 dialing position, it extends radially along the housing 2.

[0091] 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.

[0092] 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 dialing 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 dialing position and the lever 431 is dialed 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.

[0093] 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 caught in the toothed disk 75, and at this time, it is said that the forward-rotation ratchet 422 meshes with the toothed disk 75. When the forward-rotation ratchet 422 rotates in the forward-rotation direction (for example Figure 17In [the figure], the forward-rotation ratchet 422 rotates clockwise around the axis of the housing 2), and the ratchet teeth of the forward-rotation ratchet 422 abut against the rectangular teeth of the toothed disc 75 to drive the toothed disc 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 [the figure], the forward-rotation ratchet 422 rotates counterclockwise around the axis of the housing 2), the ratchet teeth of the forward-rotation ratchet 422 slip due to the inclined surface, and the forward-rotation ratchet 422 cannot drive the toothed disc 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.

[0094] Furthermore, the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 move axially along the housing 2 based on the rotation of the commutator 421 around 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 toothed disc 75, and at this time the clutch assembly 42 is in the disengaged state. When the commutator 421 rotates circumferentially to the forward-rotation position, the forward-rotation ratchet 422 meshes with the toothed disc 75. When the commutator 421 rotates circumferentially to the reverse-rotation position, the reverse-rotation ratchet 423 meshes with the toothed disc 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. This will be demonstrated below through an embodiment.

[0095] 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 below, 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 toothed disc 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 below, 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.

[0096] Taking the forward rotation limiting groove 4211 as an example for illustration, the forward rotation meshing recess 4213 is recessed towards the gear disk 75. Therefore, when the forward rotation limiting post rotates circumferentially with the forward rotation ratchet 422 to the position of the forward rotation meshing recess 4213, the entire forward rotation ratchet 422 can move towards the gear disk 75, thereby achieving meshing with the gear disk 75.

[0097] Optionally, the forward rotation limiting groove 4211 and the reverse rotation limiting groove 4212 respectively have vacant recesses (for the convenience of description, the vacant recess of the forward rotation limiting groove 4211 will be referred to as the forward rotation vacant recess 4215 hereinafter, and the vacant recess of the reverse rotation limiting groove 4212 will be referred to as the reverse rotation vacant recess 4216 hereinafter). The vacant recess is farther from the gear disk 75 than the meshing recess, that is, the forward rotation vacant recess 4215 is farther from the gear disk 75 than the forward rotation meshing recess 4213, and the reverse rotation vacant recess 4216 is farther from the gear disk 75 than the reverse rotation meshing recess 4214. When the commutator 421 is in the vacant position, the forward rotation limiting post abuts against the forward rotation vacant recess 4215, and the reverse rotation limiting post 4231 abuts against the reverse rotation vacant recess 4216.

[0098] Taking the forward rotation limiting groove 4211 as an example for illustration again, the forward rotation vacant recess 4215 is recessed towards the gear disk 75 and is farther from the gear disk 75 than the forward rotation meshing recess 4213. Therefore, when the forward rotation limiting post rotates circumferentially with the forward rotation ratchet 422 to the position of the forward rotation vacant recess 4215, the forward 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 forward rotation limiting post abuts in the forward rotation vacant recess 4215, which can form a gear position when the commutator 421 rotates, ensuring that the commutator 421 can be reliably positioned in the vacant position when not rotated by the operator, and preventing the forward rotation ratchet 422 or the reverse rotation ratchet 423 from affecting the normal operation of the electric drive module 3.

[0099] In some embodiments, the forward rotation ratchet 422 is pushed to move towards the gear disk 75, which can be realized by the push of the commutator 421. For example, the width of the forward rotation limiting groove 4211 along the axial direction of the housing 2 can be configured to match the outer diameter of the forward rotation limiting post, and while the forward 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 forward rotation limiting groove 4211 can push the forward 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 forward rotation limiting groove 4211 and will not be repeated here.

[0100] Preferably, the clutch assembly 42 further includes a potential energy member 424 for applying a potential energy force toward the direction of the toothed disk 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 toward the toothed disk 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 an elastic sheet 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 applying a potential energy force toward the toothed disk 75 to the forward rotation ratchet 422 and the reverse rotation ratchet 423, ensuring reliable engagement between the forward rotation ratchet 422 or the reverse rotation ratchet 423 and the toothed disk 75.

[0101] Furthermore, the commutator 421 and the toothed disk 75 are connected by a point contact member 425. The point contact member 425 can be, for example, a hemisphere, a dot-like protrusion, a ball or other components. 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 disk 75, the commutator 421 should not be far from the toothed disk 75 to avoid looseness and affect the accuracy. When the outer driving tube 12 moves axially, the ball nut 72 and the toothed disk 75 need to rotate circumferentially, and the commutator 421 may not rotate circumferentially or the rotation amount does not match the rotation of the toothed disk 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 disk 75 can effectively reduce the frictional resistance between the commutator 421 and the toothed disk 75.

[0102] Optionally, the forward rotation limiting groove 4211 has a forward rotation transition slope 4217 connected 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 connected 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.

[0103] Optionally, refer to Figure 10 and Figure 17 , the clutch assembly 42 further includes a reversing knob 426, the reversing knob 426 is disposed 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 circumferentially formed thereon. One end of the reversing knob 426 is disposed on the commutator 421, and the other end passes out of the knob groove 435.

[0104] 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 provision of the avoidance hole 434 enables the lever 431 to allow the reversing knob 426 to be received therein when rotating 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.

[0105] Further, 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 disengaged state, so as to ensure that in the scenario where the cover body 5 is closed on the opening 20 and the electric drive is used, the manual drive module 4 inside the cover body 5 does not interfere with the drive of the electric drive module 3.

[0106] Furthermore, 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, which is equivalent to ensuring in a double-insurance manner that the manual drive module 4 does not interfere with the drive of the electric drive module 3.

[0107] In summary, in the interventional handle and the interventional delivery system provided by the present invention, the interventional handle includes a manual driving module and a conversion module; the manual driving module includes a clutch assembly and a driving member, and the clutch assembly has an engaged state and a disengaged state; the conversion module is used to connect with the outer tube of the interventional catheter and convert the power of the manual driving module into the axial movement of the outer tube along the housing; when the clutch assembly is in the engaged state, the driving member is coupled to the conversion module through the clutch assembly; when the clutch assembly is in the disengaged state, the power transmission between the driving member and the conversion module is disconnected. With such a configuration, when manual driving is required, the clutch assembly can be used to couple the driving member to the conversion module, so that manual driving can be achieved. On the contrary, when converting from manual driving to electric driving, the clutch assembly can also be used to disconnect the power transmission between the driving member and the conversion module to avoid interference of the manual driving module with the electric driving.

[0108] 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 according to the above disclosure are within the protection scope of the claims.

Claims

1. An interventional handle, characterized in that, Comprising: A manual driving module and a conversion module; The manual driving module includes a clutch assembly and a driving member, and the clutch assembly has an engaged state and a disengaged state; The conversion module is used to connect with the outer tube of the intervention catheter and convert the power of the manual driving module into the axial movement of the outer tube along the housing; When the clutch assembly is in the engaged state, the driving member is coupled to the conversion module through the clutch assembly; when the clutch assembly is in the disengaged state, the power transmission between the driving member and the conversion module is disconnected; The engaged state includes a forward rotation engaged state and a reverse rotation engaged state; the driving member is configured to transmit power to the conversion module when rotating circumferentially in a direction adapted to the forward rotation engaged state or the reverse rotation engaged state; the driving member 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.

2. The interventional handle according to claim 1, wherein The clutch assembly includes a commutator, a forward rotation ratchet and a reverse rotation ratchet; the conversion module includes a toothed disk; The commutator is circumferentially rotatably arranged around the axis of the housing, the forward rotation ratchet and the reverse rotation ratchet are axially movably arranged along the housing, and the circumferential positions of the forward rotation ratchet and the reverse rotation ratchet relative to the driving member are defined; When the commutator rotates around the axis of the housing to the vacant position, both the forward rotation ratchet and the reverse rotation ratchet are separated from the toothed disk, and the clutch assembly is in the disengaged state.

3. The interventional handle according to claim 2, wherein, When the commutator rotates around the axis of the housing to the forward rotation position, the forward rotation ratchet meshes with the toothed disk; when the driving member rotates forward around the axis of the housing, the toothed disk is driven to rotate forward through the forward rotation ratchet; When the driving member rotates reversely around the axis of the housing, the forward rotation ratchet slips with the toothed disk, and the forward rotation ratchet idles; When the commutator rotates around the axis of the housing to the reverse rotation position, the reverse rotation ratchet meshes with the toothed disk; when the driving member rotates reversely around the axis of the housing, the toothed disk is driven to rotate reversely through the reverse rotation ratchet; when the driving member rotates forward around the axis of the housing, the reverse rotation ratchet slips with the toothed disk, and the reverse rotation ratchet idles.

4. The interventional handle according to claim 3, wherein The commutator has a circumferentially extending forward rotation limiting groove and a reverse rotation limiting groove, the forward rotation ratchet and the reverse rotation ratchet respectively have limiting posts, the limiting post of the forward rotation ratchet is movably inserted into the forward rotation limiting groove, the limiting post of the reverse rotation ratchet is movably inserted into the reverse rotation limiting groove, and the forward rotation limiting groove and the reverse rotation limiting groove respectively have meshing recesses recessed towards the toothed disk; When the commutator is in the forward rotation position, the limiting post of the forward rotation ratchet abuts against the meshing recess of the forward rotation limiting groove; when the commutator is in the reverse rotation position, the limiting post of the reverse rotation ratchet abuts against the meshing recess of the reverse rotation limiting groove.

5. The intervention handle according to claim 4, wherein, The forward rotation limiting groove and the reverse rotation limiting groove respectively have empty recessed portions, and the empty recessed portions are farther from the tooth disc relative to the meshing recessed portions; when the commutator is in the empty position, the limiting post of the forward rotation ratchet abuts against the empty recessed portion of the forward rotation limiting groove, and the limiting post of the reverse rotation ratchet abuts against the empty recessed portion of the reverse rotation limiting groove.

6. The interventional handle according to claim 5, characterized in that, The forward rotation limiting groove has a forward rotation transition slope surface, and the forward rotation transition slope surface is connected between the meshing recessed portion and the empty recessed portion of the forward rotation limiting groove; the reverse rotation limiting groove has a reverse rotation transition slope surface, and the reverse rotation transition slope surface is connected between the meshing recessed portion and the empty recessed portion of the reverse rotation limiting groove.

7. The interventional handle according to claim 4, characterized in that, The clutch assembly further includes a potential energy member, and the potential energy member is used to apply a potential force in the direction towards the tooth disc to the forward rotation ratchet and the reverse rotation ratchet.

8. The interventional handle according to claim 3, wherein, The commutator and the tooth disc are connected by a point contact member.

9. The interventional handle according to claim 3, characterized in that, The intervention handle further includes a housing and a cover body, the housing has an opening, the cover body is adapted to the opening and is detachably covered on the opening; the driving member includes a lever and a base, and the base is rotatably arranged around the axis of the housing; the forward rotation ratchet and the reverse rotation ratchet are axially movably arranged on the base along the axis of the housing, and the circumferential positions of the forward rotation ratchet and the reverse rotation ratchet relative to the base are defined; The lever is rotatably arranged on the base between a storage position and a dialing position around a rotating shaft, and the rotating shaft is perpendicular to the axis of the housing; When the lever is in the storage position, it does not extend beyond the opening to allow the cover body to cover the opening; when the lever is in the dialing position, it extends radially along the housing.

10. The interventional handle according to claim 9, wherein, The clutch assembly further includes a commutation dial button, the commutation dial button is arranged on the commutator and passes through the base; the lever has an avoidance hole, and when the commutator is in the empty position, the avoidance hole is aligned with the commutation dial button and allows the commutation dial button to penetrate, so as to allow the lever to rotate to the storage position.

11. The interventional handle according to claim 10, wherein The base is annular and sleeved on the outer periphery of the commutator; the base has a dial button groove opened in the circumferential direction, one end of the commutation dial button is arranged on the commutator, and the other end passes out of the dial button groove.

12. The intervention handle according to claim 1, characterized in that, The intervention handle further includes: a housing, an electric drive module, a cover body and a control module; the conversion module is further used to convert the power of the electric drive module into the axial movement of the outer tube along the housing. 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; The control module is configured to obtain the assembly information of 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 the enabled mode; when the cover body is separated from the opening, switch the electric drive module to the disabled mode.

13. An interventional delivery system, characterized in that, Comprising an interventional handle according to any one of claims 1 to 12, further comprising an interventional catheter, the interventional catheter including an outer tube configured to move axially along the housing at least under the drive of the manual drive module.

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