CN116459042A - Interventional Handle and Interventional Delivery System - Google Patents

Abstract

The invention provides an intervention handle and an intervention conveying system, wherein the intervention handle comprises a shell, an electric driving module, a manual driving module, a cover body and a control module; the housing has an opening; the cover body is matched with the opening and is detachably covered on the opening; the electric driving module is arranged in the shell, and the manual driving module is arranged at the position, corresponding to the opening, of the shell; the control module is configured to acquire assembly information of whether the cover body is covered on the opening or not, and switch the electric driving module into an enabling mode according to the assembly information when the cover body is covered on the opening; and when the cover body is separated from the opening, switching the electric driving module into a disabling mode. So configured, optimizing the layout of the interventional handle allows for the placement of more other functional modules. And when manual driving is needed, the cover body can be separated from the shell.

Description

Interventional Handle and Interventional Delivery System

technical field

The invention relates to the technical field of medical devices, in particular to an interventional handle and an interventional delivery system.

Background technique

Intervention therapy is a brand-new treatment technology developed internationally in recent years. Its principle is a minimally traumatic 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 lesions in the body. This technology has the characteristics of no surgery, less trauma, quick recovery and good effect, and avoids the harm caused by traditional surgery to patients.

The delivery system used in heart valve interventional therapy is generally divided into two parts: a catheter part and a handle part. As the power source of the entire interventional treatment, the handle needs to ensure sufficient safety and effectiveness. At present, conventional pure manual handles use thread pairs to realize transmission; electric handles use motors, couplings, gears, screw rods or hydraulic components to realize transmission. With the in-depth research on solutions to heart valve diseases, in order to improve the release accuracy and stability of interventional operations, the delivery system has developed a hybrid handle, such as the combination of electric and manual, hydraulic and manual. This kind of hybrid handle uses electric or hydraulic mode as the main operation mode, and manual operation is used as a risk management measure. When the main operation mode fails, it can be switched to manual mode to continue the operation and reduce the risk of surgery. Because the frequency of manual mode in the hybrid handle is very low, and the manual function cannot be canceled directly, it is necessary to further optimize the handle structure to achieve a harmonious and natural state.

Contents of the invention

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 canceled and the overall layout of the handle is affected.

In order 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 and a control module;

The housing has an opening; the cover is adapted to the opening and detachably covers the opening; the electric driving module is arranged in the housing, and the manual driving module is arranged in the housing corresponding to the opening;

The control module is configured to acquire assembly information on whether the cover fits on the opening, and according to the assembly information, switch the electric drive module to an enabled mode when the cover is closed to the opening; switch the electric drive module to a disabled mode when the cover is separated from the opening.

Optionally, the interventional handle includes a first sensor, the first sensor is arranged at the position of the housing corresponding to the opening, and is connected to the control module; the first sensor is used to obtain assembly information of whether the cover is closed to the opening.

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

Optionally, the intervention handle includes a matching connecting part, and the connecting part is used to apply a binding force to the cover toward the opening, so as to drive the cover to be assembled and connected to the opening.

Optionally, the connection part includes a first magnetic attraction part and a second magnetic attraction part capable of attracting each other, the first magnetic attraction part is arranged on the cover, the second magnetic attraction part is arranged at the opening, and when the cover is closed on the opening, the cover is attracted to the opening by magnetic force.

Optionally, the cover body and the housing have matching engaging parts, and when the cover body covers the opening, the cover body is engaged in the opening through the engaging parts; wherein, the engaging parts and the connecting parts are arranged at both ends of the cover body and the opening at intervals along the axial direction of the housing.

Optionally, the interventional handle includes a conversion module, the conversion module includes a first screw rod arranged along the axial direction of the housing, and a ball nut rotatably screwed around the first screw rod; the first screw rod is used to connect with the outer tube of the interventional catheter;

The housing defines the axial position of the ball nut along the housing, and limits the circumferential rotation of the first screw; the ball nuts are respectively connected to the electric drive module and the manual drive module, and the ball nut is used to rotate around the first screw under the drive of the electric drive module or the manual drive module, so as to drive the first screw to move in the axial direction of the housing.

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.

Optionally, the interventional handle includes a second sensor and a third sensor, the second sensor is used to obtain information about the distal stroke limit of the first screw rod, and the third sensor is used to obtain information about the proximal stroke limit of the first screw rod; the control module prohibits the electric drive module from driving the first screw rod to move toward the distal end according to the remote stroke limit information; the control module prohibits the electric drive module from driving the first screw rod to move toward the proximal end according to the proximal stroke limit information.

Optionally, the second sensor and the third sensor are magnetic sensors, and the first screw rod has a magnet; when the first screw rod moves along the housing to the far-end stroke limit position, the magnet is axially aligned with the second sensor; when the first screw rod moves along the housing to the proximal stroke limit position, the magnet is axially aligned with the third sensor.

Optionally, the first screw rod has an axially penetrating cavity, the cavity is used for the outer tube of the interventional catheter to penetrate and be fixed, and the cavity is also used for the inner tube of the interventional catheter to movably pass through.

Optionally, the intervention handle includes an inner tube control module, the inner tube control module includes a second screw rod arranged axially along the housing, and a second knob rotatably threaded around the second screw rod; the housing defines the axial position of the second knob along the housing, and limits the circumferential rotation of the second screw rod;

The second screw rod 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 along the axial direction of the housing under the rotational drive of the second knob.

Optionally, the housing has an observation window, and the observation window has a scale to indicate the amount of rotation of the second knob.

In order to solve the above technical problems, the present invention also provides an interventional delivery system, which includes the above-mentioned interventional handle, and also includes an interventional catheter, the interventional catheter includes an outer tube, and the outer tube is used to move along the axial direction of the housing under the drive of the electric drive module or the manual drive module.

To sum up, in the interventional handle and the interventional delivery system provided by the present invention, the interventional handle includes a housing, an electric driving module, a manual driving module, a cover, and a control module; the housing has an opening; the cover is adapted to the opening and detachably covers the opening; the electric driving module is disposed in the housing, and the manual driving module is disposed in the housing corresponding to the opening; When the electric drive module is switched to an enabled mode; when the cover is separated from the opening, the electric drive module is switched to a disabled mode.

With such a configuration, when the cover is closed on the opening, the control module switches the electric drive module to the enable mode, which allows electric control, and at the same time, the cover closes the opening to hide the manual drive module, optimizes the layout of the intervention handle, and allows more other functional modules to be arranged. And when manual driving is required, the cover body can be separated from the housing to expose the manual driving module, so that manual driving can be realized.

Description of drawings

Those of ordinary skill in the art will understand that the provided drawings are for better understanding of the present invention, but do not constitute any limitation to the scope of the present invention. in:

Fig. 1 is a schematic diagram of an interventional handle according to an embodiment of the present invention, wherein a cover body covers an opening.

Fig. 2 is a schematic diagram of an interventional handle according to an embodiment of the present invention, wherein the cover is separated from the housing.

Fig. 3 is a schematic diagram of the cover body of the embodiment of the present invention.

Fig. 4 is a schematic axial sectional view of the cover body of the embodiment of the present invention.

Fig. 5 is a schematic axial sectional view of an interventional handle according to an embodiment of the present invention.

Fig. 6 is a partial enlarged view of the electric driving module and the manual driving module according to the embodiment of the present invention.

Fig. 7 is a partial enlarged view of the inner pipe control module of the embodiment of the present invention.

Fig. 8 is a schematic diagram of an interventional handle according to another embodiment of the present invention, wherein the cover is separated from the housing.

9a to 9c are schematic diagrams of the circumferential rotation of the driving member in another embodiment of the present invention.

Fig. 10 is a schematic diagram of a manual driving module according to another embodiment of the present invention.

Fig. 11 is a side view of a manual driving module according to another embodiment of the present invention.

Fig. 12 is a schematic axial sectional view of a manual driving module according to another embodiment of the present invention.

Fig. 13a and Fig. 13b are schematic diagrams of a forward-rotation ratchet and a reverse-rotation ratchet according to another embodiment of the present invention.

Fig. 14 is a schematic diagram of a commutator according to another embodiment of the present invention.

Fig. 15a is a schematic diagram of a commutator in an idle position according to another embodiment of the present invention.

Fig. 15b is a schematic diagram of a commutator in a positive rotation position according to another embodiment of the present invention.

Fig. 16 is a top view of a clutch assembly in a disengaged state according to another embodiment of the present invention.

Fig. 17 is a schematic diagram of another embodiment of the present invention in which the clutch assembly is engaged.

In the attached picture:

11-inner tube; 12-outer tube; 13-stabilizing tube; 2-housing; 20-opening; 21-second magnetic component; 22-card slot; 23-ring groove; 24-observation window; 3-electric drive module; 31-motor; -forward rotation limit groove; 4212-anti-rotation limit groove; 4213-forward rotation engagement depression; 4214-counter rotation engagement depression; 4215-forward rotation vacant depression; 4-potential energy piece; 425-point contact piece; 426-reversing button; 43-driver; 430-base; 431-shift lever; 432-rotating shaft; 433-bearing; 434-avoidance hole; 0-cavity; 71-first screw; 72-ball nut; 73-outer tube fixture; 74-magnet; 75-sprocket; 81-first sensor; 82-second sensor; 83-third sensor;

Detailed ways

In order to make the purpose, advantages and features of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and not drawn to scale, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In addition, the structures shown in the drawings are often a part of the actual structures. In particular, each drawing needs to display different emphases, and sometimes uses different scales.

As used in the present invention, the singular forms "a", "an" and "the" include plural objects, the term "or" is usually used in the meaning including "and/or", the term "several" is usually used in the meaning including "at least one", and the term "at least two" is usually used in the meaning including "two or more". In addition, the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be understood as indicating or relative importance or implicitly indicating the indicated technology number of features. Thus, the features defined as "first", "second", and "third" may explicitly or implicitly include one or at least two of these features, and "one end" and "another end" as well as "near end" and "far end" generally refer to two corresponding parts, which not only include the end points. The terms "proximal" and "distal" are defined herein with respect to an interventional delivery system having an end for accessing the body and a manipulation end (ie, an interventional handle) that protrudes outside the body. The term "proximal" refers to the position of the element that is closer to the manipulation end of the interventional delivery system that protrudes outside the body, and the term "distal" refers to the position of the element that is closer to the end of the interventional delivery system that intervenes in the body and thus farther from the manipulation end of the interventional delivery system. Optionally, in a manual or hand-operated application scenario, the terms "proximal" and "distal" are defined herein with respect to an operator such as a surgeon or a clinician. The term "proximal" refers to the position of the element closer to the operator, and the term "distal" refers to the position of the element closer to the interventional delivery system and thus farther from the operator. In addition, as used in the present invention, "mounting", "connecting" and "connecting", and one element being "set" on another element, should be interpreted in a broad sense, usually only means that there is a connection, coupling, cooperation or transmission relationship between the two elements, and the connection, coupling, cooperation or transmission between the two elements can be direct or indirect through an intermediate element, and should not be understood as indicating or implying the spatial positional relationship between the two elements, that is, one element can be in any orientation such as inside, outside, above, below or on one side of another element, unless the content clearly states otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations. Furthermore, directional terms such as above, below, up, down, up, down, left, right, etc. are used relative to the exemplary embodiments as they are shown in the figures, with an upward or upward direction towards the top of the corresponding figure and a downward or downward direction towards the bottom of the corresponding figure.

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 canceled and the overall layout of the handle is affected.

Description is made below with reference to the accompanying drawings.

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

In one example, the interventional catheter includes an inner tube 11 and an outer tube 12 , wherein the outer tube 12 is movably sheathed outside the inner tube 11 , and there is a certain gap between the distal ends of the two, and the gap is used for placing an artificial valve prosthesis. When the inner tube 11 and the outer tube 12 advance and retreat axially together, they can move forward and backward along the patient's blood vessel together with the artificial valve prosthesis. After approximately moving to the implantation site, the outer tube 12 is withdrawn toward the proximal end relative to the inner tube 11, exposing (or partially exposing) the artificial valve prosthesis, and the stent of the artificial valve prosthesis can be self-expandable and expanded until it fits with the original valve ring at the implantation site, and the implantation is completed. The recycling process is the opposite, and will not be explained here. It can be understood that the principle of the whole interventional catheter is to realize 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 .

Based on the interventional catheter as 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 operated by the operator to drive the inner tube 11 and the outer tube 12 . In one example, the inner tube 11 can be fixedly connected with the interventional handle, and the interventional handle only needs to drive the outer tube 12 to move forward and backward in the axial direction to realize the loading, release or recovery of the artificial valve prosthesis.

Please refer to FIGS. 1 to 6 , the embodiment of the present invention provides an interventional handle, which includes: a housing 2, an electric driving module 3, a manual driving 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 driving module 3 is disposed in the housing 2, and the manual driving module 4 is disposed in the housing 2 corresponding to the opening 20; According to the assembly information of the opening 20, and according to the assembly information, when the cover body 5 is closed on the opening 20, switch the electric drive module 3 to the enable mode; when the cover body 5 is separated from the opening 20, switch the electric drive module 3 to the disable mode. 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 axial direction of the casing 2 .

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 without outputting power. Optionally, whether the electric drive module 3 is enabled or not, it is coupled with the outer tube 12, which controls whether it is enabled and outputs power by means of electrical switching under the control of the control module. The electrical switching method here, for example, can be to send 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 to cut off or connect the power supply of the electric drive module 3, and those skilled in the art can configure according to the prior art. The assembly information may, for example, be in the form of an electrical signal, such as a level signal. After the control module obtains the assembly information, it can switch the mode of the electric drive module 3 accordingly.

As shown in FIGS. 2 to 4 , in an alternative example, the opening 20 on the housing 2 roughly extends about half a circle along the circumference of the housing 2 and faces one side of the housing 2 . Correspondingly, the cover body 5 is roughly in the shape of a saddle, which can be buckled on the opening 20 and is roughly flush with the surrounding casing 2 , so as to cover and hide the manual driving module 4 located at the opening 20 . Further, the housing 2 is also provided with electric control buttons for controlling the electric driving module 3 , and the electric control buttons include a recovery (loading) button 61 and a release button 62 . The recovery (loading) button 61 and the release button 62 are connected in communication with the control module respectively. When the recovery (loading) button 61 is pressed, a forward signal is sent to the control module. After the control module receives the forward signal, it controls the electric drive module 3 to drive the outer tube 12 to move to the far end, that is, to advance. When the release button 62 is pressed, it sends a retreat signal to the control module. After receiving the retreat signal, the control module controls the electric drive module 3 to drive the outer tube 12 to move proximally, that is, to retreat. Optionally, a power switch 63 is also provided on the housing 2 , which is used to turn on and off the power supply to the control module and the electric drive module 3 . It should be understood that the housing 2 , opening 20 and cover 5 shown in FIGS. 2 to 4 are only examples and not limiting. Those skilled in the art may configure the housing 2 , opening 20 and cover 5 in other shapes according to actual conditions.

As shown in Figures 5 and 6, optionally, the interventional handle includes a conversion module 7, which is used to connect with the outer tube 12 of the interventional 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 one example, the conversion module 7 includes a first screw 71 arranged in the axial direction of the housing 2, and a ball nut 72 rotatably threaded around the first screw 71; the first screw 71 is used to connect with the outer tube 12 of the interventional catheter; the housing 2 defines the axial position of the ball nut 72 along the housing 2, and limits the circumferential rotation of the first screw 71; Driven by the electric driving module 3 or the manual driving module 4 , it rotates around the first screw rod 71 to drive the first screw rod 71 to move along the axial direction of the housing 2 .

Optionally, the housing 2 has a rotation-limiting guide groove (not shown) extending axially, and the first threaded rod 71 only moves forward and backward along the rotation-limiting guide groove, and is restricted by the rotation-limiting guide groove so as to be unable to rotate circumferentially. The ball nut 72 is restricted by the housing 2 so that it can only rotate in the circumferential direction and cannot move in the axial direction.

Further, the first screw rod 71 and the ball nut 72 are matched with balls embedded in circular arc threads. When the ball nut 72 rotates around the first screw rod 71, the balls can circulate in the ball nut 72 and drive the first screw rod 71 to move along the axial direction of the housing 2. For its specific structure, refer to the existing ball screw screw, which will not be described in this embodiment. Since the ball nuts 72 are 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.

In an alternative example, the manual driving module 4 includes a first knob 41 coaxially connected with the ball nut 72 . For example, 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 turn the first knob 41 to rotate around the first screw rod 71 , and then drive the first screw rod 71 to move forward and backward.

Optionally, the first threaded rod 71 has a cavity 70 penetrating in the axial direction, the cavity 70 is used for penetrating and fixing the outer tube 12 of the interventional catheter, and the cavity 70 is also used for movably passing through the inner tube 11 of the interventional catheter. Optionally, the interventional handle includes an outer tube fixing member 73 , which is a ring-shaped member with an inner hole penetrating in the axial direction of the casing 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 with the first threaded rod 71 . The outer tube 12 penetrates through the distal end of the cavity 70 and is fixedly connected with the outer tube fixing member 73 . The inner tube 11 penetrates from the distal end of the cavity 70 , passes through the inner hole of the outer tube fixing member 73 , penetrates into the outer tube 12 , and extends proximally. With such configuration, the first threaded rod 71 is equivalent to being fixed to the outer tube 12 , and the outer tube 12 can be driven to move back and forth by turning the first knob 41 .

Optionally, the electric drive module 3 includes a motor 31 and a transmission member 32 , and 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 one 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 realize 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 transmission structures commonly used in the field such as belt transmission and friction wheel transmission. When the electric drive module 3 is in the enabling mode, the surgeon 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 driving module 3 and the manual driving 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 is turned, the same motor 31 is also turned. Optionally, the interventional handle further includes a battery 33, which is used to provide energy for the motor 31 and the control module.

In order to realize that the main operation mode is electric drive under usual conventional control, the manual drive module 4 is covered and hidden by setting a cover 5 in this embodiment. When it is necessary to switch to manual drive, the cover body 5 can be detached to expose the manual drive module 4 . Further, in order to avoid accidental touch of the electric control button during manual driving and conflict with manual driving to 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, both the recovery (load) button 61 and the release button 62 are invalid.

In order to realize the detection of whether the cover 5 is separated from the opening 20, optionally, the intervention handle includes a first sensor 81, the first sensor 81 is arranged at the place of 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 5 is closed to the opening 20; optionally, the first sensor 81 is a magnetic sensor, and the cover 5 has a magnet 51 at a position corresponding to the magnetic sensor. When the cover 5 is closed on the opening 20, the magnet 51 is close to 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 of the cover 5 to the opening 20 to the control module, and then the control module switches the electric drive module 3 to the enable mode, that is, at this time, the operator presses the recovery (loading) button 61 or the release button 62, and 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 assembly information of the separation of the cover body 5 to the control module, and then the control module switches the electric drive module 3 to a disabled mode.

Please continue to refer to FIG. 5 , optionally, the interventional 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 screw mandrel 71, and the third sensor 83 is used to acquire the proximal end stroke limit information of the first screw mandrel 71; the control module prohibits the electric drive module 3 from driving the first screw mandrel 71 to move toward the distal end according to the distal stroke limit information; the control module prohibits the electric drive module 3 from driving the first screw mandrel 71 to move toward the proximal end according to the proximal stroke limit information. The setting of the second sensor 82 and the third sensor 83 can detect whether the stroke of the first screw mandrel 71 reaches the limit, and when it reaches the limit, send corresponding information to the control module, so that the control module can prohibit the action of the electric drive module 3 .

In an alternative example, the second sensor 82 and the third sensor 83 are magnetic sensors, and the first screw rod 71 has a magnet 74; the second sensor 82 is located at the distal side of the axial travel of the first screw rod 71, and the third sensor 83 is located at the proximal side of the axial travel of the first screw rod 71; 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 instruct the control module. After the control module receives the far-end stroke limit information from the second sensor 82, it prohibits the electric drive module 3 from driving the first screw mandrel 71 to move to the far end. 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 screw rod 71 to move proximally. In contrast, after the control module receives the proximal stroke limit information from the third sensor 83, it prohibits the electric drive module 3 from driving the first screw 71 to move proximally. At this time, the electric drive module 3 will not respond when the release button 62 is pressed. But at this time, when the recovery (loading) button 61 is pressed, the electric drive module 3 will respond and drive the first screw rod 71 to move to the distal end.

Of course, the embodiment of the above-mentioned magnetic sensor is only an example of the first sensor 81, the second sensor 82 and the third sensor 83 and is not limited to 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 tact switches, infrared sensors, ultrasonic sensors, etc., and the present invention is not limited to this.

Please refer to FIG. 2 and FIG. 4 , optionally, the cover 5 and the housing 2 have matching connecting parts, and the connecting parts are used to apply a bonding force to the cover 5 toward the opening 20 to drive the cover 5 to be assembled and connected to the opening 20 . Optionally, the connection part includes a first magnetic attraction part 52 and a second magnetic attraction part 21 capable of attracting each other. The first magnetic attraction part 52 is arranged on the cover 5, and the second magnetic attraction part 21 is arranged at the opening 20. When the cover 5 is closed on the opening 20, the cover 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 capable of being attracted by the magnet, and 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 some other embodiments, the first magnetic attraction component 52 and the second magnetic attraction component 21 may also be two opposite magnets. It can be understood that a magnet and an attracted body can be attracted together by magnetic force, and two magnets with opposite poles can also be attracted together by magnetic force. In one example, the cover body 5 is provided with magnets, and the housing 2 is provided with magnets opposite to the opposite poles of the magnets. When the cover body 5 is closed on the opening 20, the magnet and the magnet are close to or contact each other, thereby ensuring the magnetic cooperation between the cover body 5 and the housing 2, and a certain force is required to take it off, preventing the cover body 5 from falling due to bumps. Of course, the connection part is not limited to include the first magnetic attraction part 52 and the second magnetic attraction part 21 that can be attracted together, and can also be other suitable structures, such as snap fit, interference fit or screw connection, and those skilled in the art can configure according to the actual situation.

Further, please refer to FIG. 2 to FIG. 4 , the cover body 5 and the housing 2 have matching engaging parts, and when the cover body 5 covers the opening 20, the cover body 5 is engaged at the opening 20 through the engaging parts; wherein, the engaging parts and the connecting parts 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 parts may include, for example, a protruding buckle 53 and a slot 22 compatible with the buckle 53 , the buckle 53 can be snapped into the slot 22 , so that the cover body 5 can be firmly locked on the opening 20 . In the example shown in FIG. 2 to FIG. 4 , the buckle 53 is disposed on the distal side of the cover body 5 , and the slot 22 is opened on the housing 2 . Furthermore, the first magnetic attraction part 52 is disposed on the proximal side of the cover body 5, and since the two ends of the cover body 5 along the axial direction of the housing 2 are respectively provided with buckles 53 and the first magnetic attraction part 52, the cover body 5 and the housing 2 can be respectively fixed at both axial ends, 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 may also be provided on the housing 2 and the slot 22 may be opened on the cover 5 .

Please refer to FIG. 7 , optionally, the interventional handle includes an inner tube control module 9, the inner tube control module 9 includes a second screw 91 arranged axially along the housing 2, and a second knob 92 rotatably threaded around the second screw 91; the housing 2 defines the axial position of the second knob 92 along the housing 2, and limits the circumferential rotation of the second screw 91; Driven by the rotation of 2, the inner tube 11 or the bending control wire is driven to move along the axial direction of the housing 2.

It can be understood that since the axial position of the second knob 92 is limited and the circumferential rotation of the second screw rod 91 is limited, the second knob 92 and the second screw rod 91 constitute a set of screw drive components. The surgeon can drive the second threaded rod 91 to move along the axial direction of the casing 2 based on the conversion of the threads by turning the second knob 92 .

The functions of the inner tube control module 9 are different based on the objects to which the second threaded mandrel 91 is connected. In one embodiment, the tube wall of the inner tube 11 contains a bending control wire (not shown), and the proximal end of the inner tube 11 passes through the tube wall of the inner tube 11. When the bending control wire is pulled toward the proximal end, the inner tube 11 can be controlled to bend, and when the bending control wire is released toward the distal end, the inner tube 11 can be restored to a straight line, thereby realizing the controlled bending of the interventional catheter. In order to adapt to different bending shapes of blood vessels, the operator can turn the second knob 92 to tighten the bending control wire in the inner tube 11, so that the head end (i.e., the distal end) of the interventional catheter is bent to adapt to the shape of the blood vessel, so that the interventional delivery system can push the interventional catheter into the body, or the target position for releasing the artificial valve prosthesis is to make the interventional catheter and the blood vessel coaxial and concentric. Optionally, at this time, the inner tube 11 can be fixed on the casing 2 through the inner tube fixing member 93 . By turning the intervention handle, the inner tube 11 can be driven to rotate in the circumferential direction, thereby determining which direction the head end of the intervention catheter bends in the circumferential direction. The second screw rod 91 is connected with the bending control wire, and the bending of the inner tube 11 can be controlled by the second knob 92 . That is to say, what the inner tube control module 9 actually realizes is the function of controlling bending of the inner tube at this time.

In another embodiment, the inner tube 11 is connected to the second screw rod 91 , so that the surgeon can control the inner tube 11 to move axially by turning the second knob 92 , that is, the inner tube 11 can be retracted quickly at this time. Now the position of outer tube 12 is not limited, and the original position can be kept. At this moment, what the inner tube control module 9 actually realizes is the quick retraction function of the inner tube.

Optionally, the threads of the second screw rod 91 and the second knob 92 are trapezoidal threads, which have a self-locking function under axial load. When using the bending control function of the inner tube, the operator does not need to maintain the rotation position of the second knob 92, but can loosen the second knob 92 after controlling the bending of the inner tube 11 to a desired shape. At this time, based on the self-locking effect of the trapezoidal thread, the axial position of the second screw rod 91 will be locked, that is, the bending shape of the inner tube 11 will not change until the operator turns the second knob 92 again.

Optionally, the second knob 92 is rotatable relative to the housing 2 but has no axial displacement. In one example, the housing 2 can be provided with a ring groove 23, and the second knob 92 is provided with a protruding ring 94. The cooperation of the two achieves the effect that the second knob 92 can rotate in the circumferential direction, but the axial direction is limited. Further, a certain space 90 is reserved in the protruding ring 94 and the ring groove 23. In some embodiments, a circle of balls 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 problem that the second screw 91 cannot rotate due to the excessive load transmitted to the second knob 92 by the control bending wire. When the conditions are established, this ring of balls can also be injected with lubricating oil to reduce the coefficient of friction.

Preferably, the casing 2 has an observation window 24 , and the observation window 24 has a scale to indicate the amount of rotation of the second knob 92 . The operator can visually observe the control stroke of the inner tube control module 9 through the observation window 24 and the scale, and know, for example, the size of the stroke margin of the inner tube control bending function.

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

Please refer to FIG. 8 to FIG. 17 , in another embodiment, the structure of the manual driving module 4 is different from the previous 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 ;

With such a configuration, the power transmission between the driving member 43 and the conversion module 7 can be freely switched based on the setting of the clutch assembly 42 . Combined 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, and the power transmission between the drive member 43 and the conversion module 7 can be disconnected, and at the same time, the control module can switch the electric drive module to enable mode, allowing 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 is switched to an engaged state, so that the driving member 43 is coupled with the conversion module 7 through the clutch assembly 42, so that the operator can realize manual driving through the driving member 43.

Optionally, as shown in FIGS. 9 a to 9 c , the driving member 43 can rotate circumferentially around the axis of the housing 2 . Further, the engagement state includes a forward rotation engagement state and a reverse rotation engagement state; the driving member 43 is configured to transmit power to the conversion module 7 when rotating circumferentially in a direction compatible with the forward rotation engagement state or the reverse rotation engagement state; the drive member 43 is configured to slip and idle when rotating circumferentially in a direction opposite to the forward rotation engagement state or the reverse rotation engagement state. It should be noted that the forward rotation and reverse rotation here refer to a set of relative circumferential rotation directions around the axis of the housing 2 , for example, when the forward rotation is clockwise, the reverse rotation is counterclockwise. Of course, the forward rotation may be counterclockwise and the reverse rotation may be clockwise, which is not limited in this embodiment.

Further, the forward-rotating meshing state means that when the clutch assembly 42 is in this state, it can only mesh in the forward-rotating direction, but cannot mesh in the reverse-rotating direction. Therefore, when the clutch assembly 42 is in the forward-rotation engagement state, the rotation of the driving member 43 in the forward rotation direction is compatible with the forward rotation engagement state. At this time, the forward rotation movement of the driving member 43 can be transmitted to the conversion module 7 through the clutch assembly 42 . The rotation of the driver 43 in the anti-rotation direction is opposite to the forward-rotation meshing state, and the rotation of the driver 43 in the anti-rotation direction cannot be transmitted by the clutch assembly 42 , and the driver 43 will slip and idle.

Similarly, the anti-rotation engagement state means that when the clutch assembly 42 is in this state, it can only be engaged in the anti-rotation direction, but cannot be engaged in the forward rotation direction. Therefore, when the clutch assembly 42 is in the anti-rotation engagement state, the rotation of the driving member 43 in the anti-rotation direction is compatible with the anti-rotation engagement state. At this time, the anti-rotation movement of the driving member 43 can be transmitted to the conversion module 7 through the clutch assembly 42 . However, the rotation of the driving member 43 in the forward rotation direction is opposite to the reverse rotation meshing state. 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 will slip and idle.

Thus, when the clutch assembly 42 is in the forward-rotation meshing state or the reverse-rotation meshing 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 the outer tube 12 can be driven by the conversion module 7 to move continuously toward a certain direction of the proximal end or the distal end along the axial direction of the housing 2, which is convenient for operation and use.

Please refer to FIGS. 10 to 17 , in an alternative example, 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 disc 75 ; the toothed disc 75 may be fixedly connected to a ball nut 72 ; And the circumferential position of the forward-rotating ratchet 422 and the reverse-rotating ratchet 423 relative to the driving member 43 is limited; when the commutator 421 rotates around the axis of the housing 2 to an idle position, the forward-rotating ratchet 422 and the reverse-rotating ratchet 423 are separated from the toothed disc 75, and the clutch assembly 42 is in the separated state; meshing; when the driving member 43 rotates positively around the axis of the housing 2, the forward rotation ratchet 422 drives the toothed disc 75 to rotate forward; when the driving member 43 rotates reversely around the axis of the housing 2, the forward rotating ratchet 422 slips with the toothed disc 75, and the forward rotating ratchet 422 idles; 3. When anti-rotating around the axis of the housing 2, the anti-rotation ratchet 423 drives the toothed plate 75 to anti-rotate; when the driving member 43 rotates positively around the axis of the housing 2, the anti-rotation ratchet 423 slips with the toothed plate 75, and the anti-rotation ratchet 423 idles.

Optionally, please refer to FIG. 8 to FIG. 12 , the driving member 43 includes a lever 431 and a base 430 , 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 movably arranged on the base 430 along the axial direction of 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 limited; 32 is rotatably arranged on the base 430 between the storage position and the dialing position, and the rotating shaft 432 is perpendicular to the axis of the housing 2; when the driving rod 431 is in the storage position, it does not exceed the opening 20 to allow the cover 5 to cover the opening 20; when the driving rod 431 is in the dialing position, it extends along the radial direction of the housing 2.

In an alternative example, the base 430 is annular, and is rotatably disposed on the housing 2 around the axis of the housing 2 via 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 limited, that is, when the base 430 rotates in the circumferential direction, it can drive the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 to rotate in the same direction, 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.

Further, the lever 431 can rotate around the rotating shaft 432 , and when the cover 5 needs to be closed on the opening 20 , the lever 431 can be rotated to the storage position so that it does not exceed the opening 20 , thereby allowing the cover 5 to be closed. When manual driving is required, the lever 431 can be rotated to the dial position so that it extends in the radial direction of the housing 2 so as to be convenient for the operator to dial. As shown in Figures 9a to 9c, the driving lever 431 is in the dial position, and the driving lever 431 can be moved in the circumferential direction to push the base 430 to rotate in the circumferential direction. 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 in the same direction.

Please refer to FIG. 13 a , FIG. 13 b and FIG. 17 , the forward rotation ratchet 422 and the reverse rotation ratchet 423 are a pair of ratchets with opposite directions, which have ratchets with opposite directions. The gear plate 75 has rectangular teeth protruding in the axial direction. Taking the forward rotation ratchet 422 as an example for illustration, when the forward rotation ratchet 422 moves toward the gear plate 75 to a certain position along the axial direction of the housing 2, its ratchet teeth snap into the gear plate 75. At this time, the forward rotation ratchet 422 is said to mesh with the gear plate 75. When the forward-rotating ratchet 422 rotates in the forward-rotating direction (for example, in FIG. 17 , the forward-rotating ratchet 422 rotates clockwise around the axis of the housing 2), the ratchet teeth of the forward-rotating ratchet 422 abut against the rectangular teeth of the toothed disc 75 to push the toothed disc 75 to rotate clockwise, thereby realizing power transmission. And if the forward-rotating ratchet 422 rotates in the counter-rotating direction (for example, in FIG. 17 , the forward-rotating ratchet 422 rotates counterclockwise around the axis of the housing 2), the ratchet teeth of the forward-rotating ratchet 422 will slip due to the slope, and the forward-rotating ratchet 422 cannot drive the toothed disc 75 to rotate counterclockwise. The structure and principle of the anti-rotation ratchet 423 are similar to those of the forward-rotation ratchet 422 , except that the direction of the ratchets of the anti-rotation ratchet 423 is opposite to that of the forward-rotation ratchet 422 .

Further, the movement of the forward rotation ratchet 422 and the reverse rotation ratchet 423 along the axial direction of the housing 2 is driven based on the rotation of the commutator 421 around the axis of the housing 2 . Please refer to FIG. 15a and FIG. 15b together. The circumferential position of the commutator 421 includes three gear positions, which are 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 plate 75, and the clutch assembly 42 is in a separated state. When the commutator 421 rotates to the forward rotation position in the circumferential direction, the forward rotation ratchet 422 meshes with the toothed disc 75 . When the commutator 421 rotates to the anti-rotation position in the circumferential direction, the anti-rotation ratchet 423 engages with the toothed disc 75 . It can be understood that there may be various ways in which the commutator 421 drives the forward rotation ratchet 422 and the reverse rotation ratchet 423 to move along the axial direction of the housing 2 by rotating in the circumferential direction. An example will be described below through an example.

In an alternative example, the commutator 421 has a forward-rotation limiting groove 4211 and a reverse-rotation limiting groove 4212 extending in the circumferential direction, and the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 respectively have limit posts (for convenience of description, the limit post of the forward-rotation ratchet 422 is referred to as a forward-rotation limit post, and the limit post of the reverse-rotation ratchet 423 is called a reverse-rotation limit post 4231), and the forward-rotation limit post can be movably passed In the positive rotation limiting groove 4211, the reverse rotation limiting column 4231 is movably inserted in the reverse rotation limiting groove 4212, and the forward rotation limiting groove 4211 and the reverse rotation limiting groove 4212 respectively have an engaging concave portion that is recessed toward the toothed disc 75 (for convenience of description, the engaging concave portion of the positive rotation limiting groove 4211 is referred to as the positive rotation engaging concave portion 4213, and the reverse rotation limiting groove 4212 is referred to as The engagement recess is called the anti-rotation engagement recess 4214); when the commutator 421 is in the forward rotation position, the forward rotation limit post abuts against the forward rotation engagement recess 4213;

Taking the forward rotation limiting groove 4211 as an example, the positive rotation engaging recess 4213 is recessed toward the toothed disc 75 , so when the forward rotation limiting post rotates circumferentially with the forward rotation ratchet 422 to the position of the forward rotation engaging recess 4213 , the entire forward rotation ratchet 422 can move toward the toothed disc 75 , thereby realizing meshing with the toothed disc 75 .

Optionally, the forward rotation limiting groove 4211 and the reverse rotation limiting groove 4212 have vacant recesses respectively (for the convenience of description, the vacant recess of the forward rotation limiting groove 4211 is referred to as the forward rotation vacant recess 4215, and the vacant recess of the reverse rotation limiting groove 4212 is called the reverse rotation vacant recess 4216), and the vacant recesses are farther away from the gear plate 75 than the meshing recesses, that is, the forward rotation vacant The recessed portion 4215 is farther away from the chainring 75 than the forward-rotation meshing recess 4213 , and the anti-rotation vacant recess 4216 is farther away from the chainring 75 than the anti-rotation meshing recess 4214 . When the commutator 421 is in the idling 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 .

Also take the positive rotation limiting groove 4211 as an example. The positive rotation vacant recess 4215 is recessed toward the toothed plate 75 and is away from the toothed plate 75 relative to the positive rotation engagement recess 4213. Therefore, when the positive rotation limit post rotates with the positive rotation ratchet 422 to the position of the forward rotation vacant recess 4215, the positive rotation ratchet 422 is far away from the toothed plate 75 relative to the meshing position, thereby realizing separation from the toothed plate 75. Further, the forward rotation limit post abuts against 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 it is not rotated by the operator, and prevents the forward rotation ratchet 422 or reverse rotation ratchet 423 from affecting the normal operation of the electric drive module 3.

In some embodiments, the forward rotation ratchet 422 is pushed to move toward the toothed plate 75, which can be realized based on 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 column, and the forward rotation limiting groove 4211 is inclined along the axial direction of the housing 2 while extending in the circumferential direction, so that when the commutator 421 rotates in the circumferential direction, the forward rotation limiting groove 4211 can push forward. The spin ratchet 422 moves along the axial direction of the housing 2 . The structure and principle of the reverse rotation limiting groove 4212 is similar to that of the forward rotation limiting groove 4211, and will not be repeated here.

Preferably, the clutch assembly 42 further includes a potential energy member 424 , and the potential energy member 424 is used to apply a potential force toward the toothed plate 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 are not moved toward the chainring 75 based on the push of the commutator 421 , but based on the push of the additional potential energy member 424 . Please refer to FIG. 13 a and FIG. 13 b , the potential energy component 424 may be, for example, an elastic potential energy component such as a shrapnel or a spring, or may be a magnetic potential energy component composed of magnetic block groups with opposite poles, which is not limited in this embodiment. 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, so that when the commutator 421 rotates in the circumferential direction, it can keep applying potential force to the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 in the direction of the toothed disc 75, ensuring that the forward-rotation ratchet 422 or the counter-rotation ratchet 423 is reliably meshed with the toothed disc 75.

Further, the commutator 421 is connected to the gear plate 75 through a point contact 425 . The point contact member 425 can be, for example, a hemisphere, a point-shaped protrusion, a ball, and the like. Preferably, the point contacts 425 may be evenly arranged along the circumference of the commutator 421 . Since there is an axial force between the commutator 421 and the forward-rotation ratchet 422 and reverse-rotation ratchet 423, in order to ensure the reliable engagement of the forward-rotation ratchet 422 and the reverse-rotation ratchet 423 with the toothed disc 75, the commutator 421 should not be far away from the toothed disc 75, so as to avoid loosening and affect the accuracy. When driving the outer tube 12 to move axially, the ball nut 72 and the toothed disc 75 need to rotate in the circumferential direction, and the commutator 421 may not rotate in the circumferential direction or the amount of rotation may not match the rotation of the toothed disc 75 no matter in the manual drive mode or the electric drive mode. Therefore, the point contact 425 is provided between the commutator 421 and the toothed plate 75 , which can effectively reduce the frictional resistance between the commutator 421 and the toothed plate 75 .

Optionally, the forward-rotation limiting groove 4211 has a forward-rotation transition slope 4217, and the forward-rotation transition slope 4217 is connected between the forward-rotation engaging recess 4213 and the forward-rotation vacant recess 4215; The forward rotation transition slope 4217 is used to smoothly connect the forward rotation engaging recess 4213 and the forward rotation vacant recess 4215, and the reverse rotation transition slope 4218 is used to smoothly connect the reverse rotation engaging recess 4214 and the reverse rotation vacant recess 4216, so that the commutator 421 can smoothly push the forward rotation ratchet 422 and the reverse rotation ratchet 423 to move along the axial direction of the housing 2 when the commutator 421 rotates in the circumferential direction.

Optionally, please refer to FIG. 10 and FIG. 17 , the clutch assembly 42 also includes a reversing dial 426, the reversing dial 426 is arranged on the commutator 421, and passes through the base 430; the shifting lever 431 has an avoidance hole 434, and when the commutator 421 is in the idle position, the avoidance hole 434 is aligned with the reversing dial 426 and allows the reversing dial 426 to pass through, thereby allowing the shifting rod 431 rotates to the storage position. Optionally, the base 430 has a button slot 435 opened circumferentially, one end of the reversing button 426 is disposed on the commutator 421 , and the other end passes through the button slot 435 .

In an alternative example, the commutator 421 is annular, and the base 430 is sleeved on the outer periphery of the commutator 421 . The reversing button 426 protrudes radially from the outer periphery of the commutator 421 and passes through the button slot 435 of the base 430 so as to be easily operated by the operator. The setting of the avoidance hole 434 can make the lever 431 allow the reversing button 426 to be accommodated therein when the lever 431 is rotated to the storage position, so that the lever 431 and the reversing button 426 will not cross and overlap and protrude out of the opening 20, thereby making full use of the space of the opening 20 and reducing the volume of the intervention handle.

Further, only when the commutator 421 is in the vacant position, the reversing button 426 is aligned with the escape hole 434, which ensures that when the lever 431 is switched to the storage position, the entire clutch assembly 42 must be in a disengaged state, thereby ensuring that the manual drive module 4 inside the cover 5 will not interfere with the drive of the electric drive module 3 when the cover 5 is closed to the opening 20 and the electric drive is used.

Furthermore, the inner size of the avoidance hole 434 preferably matches the outer contour size of the reversing dial 426. When the reversing dial 426 penetrates into the avoiding hole 434, it can limit the circumferential position of the shifting rod 431, ensuring that the shifting rod 431 will not rotate in the circumferential direction, which is equivalent to double insurance, ensuring that the manual drive module 4 will not interfere with the drive of the electric drive module 3.

To sum up, in the interventional handle and the interventional delivery system provided by the present invention, the interventional handle includes a housing, an electric driving module, a manual driving module, a cover, and a control module; the housing has an opening; the cover is adapted to the opening and detachably covers the opening; the electric driving module is disposed in the housing, and the manual driving module is disposed in the housing corresponding to the opening; When the electric drive module is switched to an enabled mode; when the cover is separated from the opening, the electric drive module is switched to a disabled mode. With such a configuration, when the cover is closed on the opening, the control module switches the electric drive module to the enable mode, which allows electric control, and at the same time, the cover closes the opening to hide the manual drive module, optimizes the layout of the intervention handle, and allows more other functional modules to be arranged. And when manual driving is required, the cover body can be separated from the housing to expose the manual driving module, so that manual driving can be realized.

It should be noted that the above 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. Any changes and modifications made by those of ordinary skill in the field of the present invention based on the above disclosures shall fall within the protection scope of the claims.

Claims (14)

1. An interventional handle, comprising: the device comprises a shell, an electric driving module, a manual driving module, a cover body and a control module;

the housing has an opening; the cover body is matched with the opening and is detachably covered on the opening; the electric driving module is arranged in the shell, and the manual driving module is arranged at the position, corresponding to the opening, of the shell;

the control module is configured to acquire assembly information of whether the cover body is covered on the opening or not, and switch the electric driving module into an enabling mode according to the assembly information when the cover body is covered on the opening; and when the cover body is separated from the opening, switching the electric driving module into a disabling mode.

2. The interventional handle of claim 1, comprising a first sensor disposed at the housing corresponding to the opening and connected to the control module; the first sensor is used for acquiring assembly information of whether the cover body covers the opening.

3. The interventional handle of claim 2, wherein said first sensor is a magnetic sensor and said cover has a magnet in a position corresponding to said magnetic sensor.

4. The access handle of claim 1, comprising a mating connection member for applying a binding force to the cover toward the opening to urge the cover into fitting connection with the opening.

5. The access handle of claim 1, wherein the connecting member comprises a first magnetic member and a second magnetic member that are capable of engaging, the first magnetic member is disposed on the cover, the second magnetic member is disposed at the opening, and the cover engages the opening by magnetic force.

6. The access handle of claim 5, wherein the cover and the housing have an adapted engagement member, and when the cover is closed to the opening, the cover is engaged to the opening by the engagement member; the clamping component and the connecting component are arranged at two ends of the cover body and the opening along the axial direction of the shell at intervals.

7. The access handle of claim 1, comprising a conversion module comprising a first lead screw disposed along an axial direction of the housing, and a ball nut rotatably threadably connected about the first lead screw; the first screw rod is used for being connected with an outer tube of the interventional catheter;

the housing defines an axial position of the ball nut along the housing and limits circumferential rotation of the first lead screw; the ball nut is respectively connected with the electric driving module and the manual driving module, and is used for rotating around the first screw rod under the driving of the electric driving module or the manual driving module so as to drive the first screw rod to axially move along the shell.

8. The access handle of claim 7, wherein the manual drive module comprises a first knob coaxially connected with the ball nut; the electric driving module comprises a motor and a transmission piece, and the motor is connected with the ball nut through the transmission piece.

9. The interventional handle of claim 7, wherein the interventional handle comprises a second sensor for acquiring distal travel limit information of the first lead screw and a third sensor for acquiring proximal travel limit information of the first lead screw; the control module prohibits the electric driving module from driving the first screw rod to move towards the far end according to the far-end travel limit information; and the control module prohibits the electric driving module from driving the first screw rod to move towards the proximal end according to the proximal end travel limit information.

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

11. The interventional handle of claim 7, wherein the first screw has an axially through cavity for penetration and fixation of an outer tube of the interventional catheter, the cavity further for movable penetration of an inner tube of the interventional catheter.

12. The access handle of claim 1, comprising an inner tube control module comprising a second lead screw disposed along an axial direction of the housing, and a second knob rotatably threaded about the second lead screw; the housing defines an axial position of the second knob along the housing and limits circumferential rotation of the second lead screw;

The second screw rod is used for being connected with an inner tube or a bending control wire of the interventional catheter so as to drive the inner tube or the bending control wire to move along the axial direction of the shell under the rotation drive of the second knob.

13. The interventional handle of claim 12, wherein said housing has a viewing window having graduations to indicate the amount of rotation of said second knob.

14. An interventional delivery system, comprising an interventional handle according to any one of claims 1-13, further comprising an interventional catheter comprising an outer tube for movement in an axial direction of the housing under the drive of an electric drive module or the manual drive module.