Valve clamp device with indication function

Abstract

The utility model relates to the field of medical instruments, in particular to a valve clamp device with an indicating function, which comprises a valve clamp used for clamping a heart valve. The far end of the core wire is connected with the valve clamp, and the core wire is used for controlling the valve clamp to work; the near end of the core wire extends into the control handle and is fixed on the control handle, and when the control handle is rotated, the control handle can actuate the core wire to move in the axial direction of the core wire; the control handle comprises a handle shell, the handle shell is hollow, a cavity is formed in the handle shell, a knob capable of rotating in the circumferential direction is arranged at the near end of the handle shell, and the inner surface of the knob is connected with a push rod through threads. According to the device, the push rod and the knob are arranged, so that a user can clearly know the opening condition of the valve clamp in a human body in a simple mode, and the device is more convenient for the user to use.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a valve clamp device with an indication function. Background Art

[0002] Heart valves are valves between the atria and ventricles or between the ventricles and arteries, similar to one-way valves. Heart valve disease can cause blood to flow backwards or abnormally when blood flows backwards. Mitral valve regurgitation is common, where some blood flows from the left ventricle back into the left atrium instead of the aorta when the heart's ventricles contract. Similar regurgitation can also occur with the tricuspid valve, which causes blood to flow back from the right ventricle into the right atrium. Taking the mitral valve as an example, a normal and healthy mitral valve can control the flow of blood from the left atrium to the left ventricle, while preventing blood from flowing from the left ventricle to the left atrium and forming regurgitation. In this case, blood flows backwards abnormally from the left ventricle into the left atrium during heart contraction, and this condition can lead to many adverse consequences, such as heart failure and death due to left ventricular dysfunction, atrial fibrillation, pulmonary hypertension.

[0003] During the operation, doctors can only determine the opening and closing angle of the valve clip in the body through DSA (Digital Subtraction Angiography), digital subtraction angiography or ultrasound images. When the valve clip clamps the valve leaflets, if the closing angle of the valve clip is too small or the valve leaflets are subjected to large local forces, it is easy to cause damage to the valve leaflets; similarly, if the valve clip is opened too much, it will damage the mechanical parts of the valve clip and cause unsuccessful implantation. However, when the clamping status of the valve clip is determined by DSA or ultrasound images, doctors cannot intuitively evaluate the clamping effect of the valve clip. Therefore, the operation time is long, the efficiency is low, and the operation process is complicated. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, the utility model provides a valve clip device with an indication function, which is provided with a push rod and the knob, so that when the core wire moves axially and actuates the valve clip, the knob can indicate the opening and closing of the valve clip on the push rod, so that the user can clearly understand the opening of the valve clip in the human body in a simple way without using or reducing the use of developing equipment, which is more convenient for the user to use. At the same time, it also reduces the exposure time of doctors or patients to radiation.

[0005] The technical solution of the utility model is:

[0006] A valve clip device with an indication function, comprising

[0007] A valve clip, which is used to clamp a heart valve;

[0008] A core wire, the distal end of which is connected to the valve clip and is used to control the opening and closing action of the valve clip;

[0009] A control handle, wherein the proximal end of the core wire extends into the control handle and is fixed to the control handle, and when the control handle is rotated, the control handle can actuate the core wire to move in the axial direction of the core wire;

[0010] The control handle comprises a handle shell, which is hollow and has a cavity inside. A knob which can rotate circumferentially is provided at the proximal end of the handle shell, and the inner surface of the knob is connected to a push rod through a thread.

[0011] The push rod may include multiple regions, that is, a segmented arrangement is adopted, and multiple regions are arranged in an integrated manner. The region near the distal end of the valve clip device is arranged in a non-uniform diameter manner, and the diameter gradually decreases from the distal end to the proximal end; the region near the proximal end of the valve clip device is arranged in a non-uniform diameter manner, and the diameter gradually increases from the distal end to the proximal end.

[0012] The distal end of the push rod at least partially extends into the interior of the handle housing from the axial position of the knob, and an indication area is provided on the outer surface of the push rod. The proximal end of the core wire can pass through the cavity and be fixed on the push rod. When the knob is rotated, the knob can actuate the push rod to move axially, and the push rod then pushes the core wire to move in the axial direction, thereby actuating the valve clamp to open or close the valve clamp. At the same time, through the cooperation of the knob and the push rod, the opening or closing angle of the valve clamp is fed back to the indication area.

[0013] Preferably, the push rod at least includes a first area and a second area, the first area and the second area are integrally connected, the first area is located at a distal end of the push rod, and the second area is located at a proximal end of the push rod;

[0014] The first region is non-uniformly arranged along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle is α degrees, the second region is non-uniformly arranged along the axial direction, the diameter gradually increases from the distal end to the proximal end, the inclination angle is β degrees, and tan(α / 2):tan(β / 2)=1:1~2.

[0015] Preferably, the first region is arranged in a non-uniform diameter along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle α is 5-10 degrees, and tan(α / 2):tan(β / 2)=1:1.5~2.

[0016] Preferably, the first region is arranged with non-equal diameters along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle α is 5 degrees, and tan(α / 2):tan(β / 2)=1:2.

[0017] Preferably, the push rod at least includes a first area, a second area and a third area, the first area, the second area and the third area are connected as one body, and the first area is located at a distal end of the push rod, the second area is located at a proximal end of the push rod, and the third area is located between the first area and the second area;

[0018] The first region is non-uniformly arranged along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle is α degrees, the second region is non-uniformly arranged along the axial direction, the diameter gradually increases from the distal end to the proximal end, the inclination angle is β degrees, and tan(α / 2):tan(β / 2)=1:1~2.

[0019] Preferably, the first region is arranged in a non-uniform diameter along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle α is 5-10 degrees, and tan(α / 2):tan(β / 2)=1:1.5~2.

[0020] Preferably, the first region is arranged with non-equal diameters along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle α is 5 degrees, and tan(α / 2):tan(β / 2)=1:2.

[0021] Preferably, the indication area is located on the outer surface of the push rod, and the indication area is provided with evenly arranged indication scales.

[0022] Preferably, different areas on the surface of the indication area are coated with layers of different colors.

[0023] Preferably, an observation window is provided on the handle housing, and a pointer is provided on the outer side of the observation window, so that the push rod in the handle housing can be seen through the observation window.

[0024] When the utility model is working, the pin is passed through the hole on the push rod, and the pin is contacted with the core wire inside the push rod to fix the core wire inside the push rod, thereby preventing the core wire and the push rod from relative movement in the axial and circumferential directions. At this time, the opening angle of the valve clip can be adjusted as needed: when the valve clip needs to be closed, the user can manually rotate the knob so that the push rod moves toward the proximal end in the axial direction, and the valve clip gradually closes, that is, the opening angle of the valve clip gradually changes from 180 degrees to 0 degrees, and the user can judge the closing condition of the valve clip according to the scale on the indicator device or the color of the indicator device; when the valve clip needs to be opened, the user can manually rotate the knob so that the push rod moves toward the distal end in the axial direction, and the valve clip gradually opens, that is, the opening angle of the valve clip changes from 180 degrees to 270 degrees. The user can judge the opening of the valve clip according to the scale on the indication area or the color of the indication device, or judge the opening or closing of the valve clip by seeing the scale or color on the indication area through the observation window, and judge the opening or closing of the valve clip comprehensively by combining the force applied by the user on the knob.

[0025] The beneficial effects achieved by the utility model are:

[0026] The utility model has the following beneficial effects:

[0027] 1. By setting the indication area, the user can more intuitively judge the opening or closing angle of the valve clip, making it easier for the user to understand the working status of the valve clip;

[0028] 2. By setting the inclination angle, when the user applies force to the knob to actuate the push rod, the knob can provide feedback to the user's hand, so that the user can qualitatively judge the working status of the valve clip.

[0029] 3. During the entire process of opening and closing the valve clip, the status of the valve clip can be understood by directly reading the indication area and / or combining hand force feedback without using or reducing the use of external imaging equipment. The method is simple and convenient, which greatly facilitates the user to use the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0032] Figure 2 It is a structural diagram of a knob and a push rod, and is used to show the assembly structure diagram of the knob and the push rod.

[0033] Figure 3 It is a structural schematic diagram of a push rod, which is used to display the indication area.

[0034] Figure 4 It is a schematic structural diagram of the push rod.

[0035] Figure 5 Another structural schematic diagram of the push rod.

[0036] Figure 6 It is a partial structural schematic diagram of the push rod, used to show the angle between the first area and the second area.

[0037] Figure 7 for Figure 1 The enlarged view of A in the figure is used to show the observation window.

[0038] Figure 8 for Figure 1 The enlarged view of B is used to show the fixation of the core wire on the push rod.

[0039] 110. Valve clip;

[0040] 120. Control handle;

[0041] 1201, handle housing; 1202, knob; 1203, push rod; 1204, indication area;

[0042] 12011, observation window; 12012, pointer;

[0043] 12021, anti-slip groove;

[0044] 12031, first area; 12032, second area; 12033, third area; 12034, channel; 12035, pin; 12036, hole;

[0045] 130. Core wire. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] Unless otherwise indicated or specially specified, the valve clip device with indication function shown in the utility model is divided into two ends, the distal end and the proximal end. The end close to the valve clip setting direction is called the distal end, and the end close to the control handle is called the proximal end.

[0048] like Figures 1 to 3 As shown, Figure 1 It is a schematic diagram of the overall structure of the utility model. Figure 2 is a schematic diagram of the structure of the knob 1202 and the push rod 1203, which is used to show the assembly structure of the knob 1202 and the push rod 1203. Figure 3 1 is a schematic diagram of the structure of the push rod 1203, which is used to display the indication area 1204. The utility model provides a valve clip 110 device with an indication function, see Figure 1 , Figure 2 and Figure 3 , including the valve clip 110 that can be clamped and fixed on the heart valve, the core wire 130 that can actuate the valve clip 110 to open or close, and the control handle 120 that can actuate the core wire 130 to move in the axial direction. The control handle 120 includes a handle housing 1201, the handle housing 1201 is hollow, and a cavity is provided inside. The proximal end of the handle housing 1201 is provided with a knob 1202 that can rotate circumferentially, and the knob 1202 is fixedly connected to the proximal end of the handle housing 1201. The distal end of the push rod 1203 at least partially extends into the knob 1202, and the inner surface of the knob 1202 is connected to the push rod 1203 through a thread. The proximal end of the core wire 130 can extend from the distal end of the handle housing 1201 into the cavity and be fixed to the push rod 1203.

[0049] An indication area 1204 is provided on the outer surface of the push rod 1203, and the indication area 1203 is recessed in the outer surface of the push rod 1203, or coated on the outer surface of the push rod 1203. When the knob 1202 is rotated, the knob 1202 can actuate the push rod 1203 to move axially, and the push rod 1203 further actuates the core wire 130 to move in the axial direction, thereby controlling the opening or closing of the valve clip 110, and feeding back the opening or closing angle of the valve clip 110 to the indication area 1204. The user can understand the opening or closing status of the valve clip 110 by checking the indication area 1204.

[0050] For example, the indication area 1204 is a uniformly arranged scale, such as Figure 3 The scale value at the intersection of the plane where the proximal surface of the knob 1202 is located and the indication area 1204 is the opening or closing angle of the valve clip 110 at this time. By reading this value, the user can intuitively obtain the opening angle of the valve clip 110.

[0051] For another example, the indication area 1204 is divided into different colors and the color of the interface between the plane where the proximal surface of the knob 1202 is located and the indication area 1204 is observed to roughly determine whether the valve clip 110 is in an open state or a closed state.

[0052] Figure 3 1203 is a schematic diagram of the structure of the push rod 1203, which is used to display the indication area 1204. Figure 3 The knob 1202 is rotatably connected to the push rod 1203 through a thread arranged on the inner surface. The push rod 1203 includes a first area 12031, a second area 12032 and a third area 12033. The third area 12033 is located between the second area 12032 and the first area 12031. The third area 12033 is set with equal diameters, and the diameters at both ends are respectively equal to the proximal end of the first area 12031 and the distal end of the second area 12032. The knob 1202 can be driven back and forth in the axial direction by a constant force in this area.

[0053] It should be noted that the first area 12031 is set as a non-equal diameter, that is, the radius of the first area 12031 gradually decreases from the distal end to the proximal end, and finally becomes the same as the radius of the third area 12033. When the knob 1202 moves from the third area 12033 to the first area 12031, the force driving the knob 1202 gradually increases, so as to provide feedback to the user. When the user feels that the applied force gradually increases, it means that the opening angle of the valve clip 110 gradually decreases. The greater the driving force applied, the smaller the opening angle of the valve clip 110. The user can roughly judge the closing angle of the valve clip 110 by the magnitude of the applied force. When the knob 1202 moves from the third area 12033 to the first area 12031, the opening angle of the valve clip 110 gradually decreases, preferably, the minimum can be 0 degrees, and the valve clip 110 is completely closed. The second area 12032 is also set to be non-equal diameter, that is, the radius of the second area 12032 gradually increases from the distal end to the proximal end, and the distal radius of the second area 12032 is the same as the radius of the third area 12033. When the knob 1202 moves from the third area 12033 to the second area 12032, the opening angle of the valve clip 110 gradually increases from 180 degrees, preferably, it can be opened to a maximum of 270 degrees. While the valve clip 110 is gradually opened, the force driving the knob 1202 also needs to gradually increase. The user can feel the change in the size of the driving force of the knob 1202 by hand. The greater the driving force applied, the greater the angle of the valve clip 110 at this time, and then the opening angle of the valve clip 110 can be qualitatively judged.

[0054] It should be noted that although the first area 12031 and the second area 12032 are structures of unequal diameters, this structure does not affect the threaded connection relationship and relative sliding function between the knob 1202 and the push rod 1203, and the knob 1202 will also be threadedly connected to the third area 12033.

[0055] It should be noted that the third area 12033 is not a necessary structure and may not be provided in some embodiments.

[0056] It should be noted that the first area 12031, the second area 12032 and the third area 12033 are integrally arranged.

[0057] Figure 4 FIG. 1 is a schematic diagram of the structure of the push rod 1203, which is used to show the inclination angles of the outer surfaces of the first area 12031 and the second area 12032. Figure 4, the angle between the planes where the upper and lower surfaces of each region are located is the inclination angle, that is, the angle formed by the plane where the upper end of the surface of the first region 12031 is located and the plane where the lower end is located is the angle α, and the angle formed by the plane where the upper end of the surface of the second region 12032 is located and the plane where the lower end is located is the angle β. The ratio of Tan (α / 2): tan (β / 2) ranges from 1:1 to 2, which can be 1:1, 1:1.1, 1:1.2, 1:1.3, 1:1.4, 1:1.5, 1:1.6, 1:1.7, 1:1.8, 1:1.9 or 1:2, preferably 1:1.5 to 2, and more preferably 1:2. α is preferably 5 to 10 degrees, preferably 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, and more preferably 5 degrees.

[0058] Figure 5 Another structural schematic diagram of the push rod 1203 is used to show the inclination angle of the outer surface of the first area 12031 and the second area 12032. It should be noted that the angle between the planes where the upper and lower surfaces of each area are located is the inclination angle, that is, the angle formed by the plane where the upper end of the surface of the first area 12031 is located and the plane where the lower end is located is angle α, and the angle formed by the plane where the upper end of the surface of the second area 12032 is located and the plane where the lower end is located is angle β. The ratio range of Tan (α / 2): tan (β / 2) is 1:1 to 2, which can be 1:1, 1:1.1, 1:1.2, 1:1.3, 1:1.4, 1:1.5, 1:1.6, 1:1.7, 1:1.8, 1:1.9 or 1:2, preferably 1:1.5 to 2, and more preferably 1:2. α is preferably 5 to 10 degrees, preferably 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, and more preferably 5 degrees.

[0059] Figure 6It is a partial structural diagram of the push rod 1203, which is used to show the inclination angles of the first area and the second area 12032. In this embodiment, the opening angle of the valve clip 110 can be changed between 0 degrees and 270 degrees. At this time, when the knob 1202 is in the initial position, the knob 1202 is located at the junction of the first area 12031 and the second area 12032, and points to the 180-degree position of the indication area 1204. When the knob 1202 is turned, the valve clip 110 can be closed to 0 degrees or opened to 270 degrees. At this time, tan(α / 2):tan(β / 2) is 1:2. Since the gap D between the knob 1202 and the push rod 1203 is fixed, the position of the knob 1202 in the first area 12031 and the second area 12032 can only be limited to a position where the gap is not greater than D. Since tan(α / 2)=D / L1, tan(β / 2)=D / L2, L1=2L2. That is, the maximum movement distance L1 of the knob 1202 from the initial position to the first area 12031 is twice the maximum movement distance L2 of the knob 1202 from the initial position to the second area 12032. When the core wire 130 moves a distance of L1 from the initial position to the first area 12031, the angle of the valve clip 110 closes from 180 degrees to 0 degrees. The closer the angle of the valve clip 110 is to 0 degrees, the greater the force required by the user. When the core wire 130 moves a distance of L2 from the initial position to the second area 12032, the angle of the valve clip 110 opens from 180 degrees to 270 degrees. The closer the angle of the valve clip 110 is to 270 degrees, the greater the force required by the user. The user can roughly judge the working condition of the valve clip 110 according to the force applied.

[0060] In this embodiment, the indication area 1204 is a scale line evenly arranged on the surface of the push rod 1203 and recessed inwardly, such as Figure 3 As shown, the scale lines are evenly arranged from 0 to 270 degrees, and the intersection of the proximal end surface of the knob 1202 and the indication area 1204 is the current opening angle of the valve clip 110. The user can easily read the opening or closing angle of the valve clip 110 through the indication area 1204, which is convenient to use. For example, Figure 3 In the figure, the junction between the proximal end surface of the knob 1202 and the indicating area 1204 indicates 180 degrees, which proves that the opening angle of the valve clip 110 is 180 degrees at this time.

[0061] In this embodiment, the indication area 1204 is arranged on the surface of the push rod 1203, and different colors are shown in different area diagrams. For example, the first area 12031 is yellow, the second area 12032 is red, and the third area 12033 is green. When the color of the junction between the proximal end surface of the knob 1202 and the indication area 1204 is roughly the position of the valve clip 110, if the color of the junction between the proximal end surface of the knob 1202 and the indication area 1204 is green, it indicates that the valve clip 110 is in the third area 12033, and if the color of the junction between the proximal end surface of the knob 1202 and the indication area 1204 is red, it indicates that the valve clip 110 is in the second area 12032.

[0062] Figure 7 for Figure 1 The enlarged view of A in FIG. 1 is used to show the observation window 12011. In this embodiment, refer to Figure 7 The handle housing 1201 is provided with an observation window 12011 for observing the internal structure, and a pointer 12012 is provided outside the observation window 12011, through which the scale or color on the push rod 1203 in the handle housing 1201 can be seen. When the push rod 1203 is pushed by the knob 1202 and moves axially in the handle housing 1201, the user can see the push rod 1203 through the observation window 12011, and understand the opening or closing of the valve clip 110 through the scale or color pointed by the pointer 12012.

[0063] Figure 8 for Figure 1 The enlarged view of B in FIG. 1 is used to show the state where the core wire 130 is fixed to the push rod 1203. In this embodiment, refer to Figure 8 The push rod 1203 is provided with a channel 12034 at the axial position and a hole 12036 at the radial position, the core wire 130 extends into the channel 12034, a pin 12035 extends radially into the hole 12036 and into the push rod 1203, and finally contacts the core wire 130 and fixes the core wire 130 in the channel 12034, so as to achieve the purpose of fixing the core wire 130 to the push rod 1203. At this time, the core wire 130 can move axially with the push rod 1203.

[0064] When the utility model is working, the pin 12035 is passed through the hole 12036 on the push rod 1203 and contacts the core wire 130 inside the push rod 1203 to fix the core wire 130 inside the push rod 1203, thereby preventing the core wire 130 and the push rod 1203 from relative movement in the axial and circumferential directions. At this time, the opening angle of the valve clip 110 can be adjusted as needed: when the valve clip 110 needs to be closed, the user can manually rotate the knob 1202 so that the push rod 1203 moves toward the proximal end along the axial direction, and the valve clip 110 gradually closes. The user can judge the closing status of the valve clip 110 according to the scale on the indicator device or the color of the indicator device; when the valve clip 110 needs to be opened, the user can manually rotate the knob 1202 so that the push rod 1203 moves toward the distal end along the axial direction, and the valve clip 110 gradually closes. The user can judge the opening status of the valve clip 110 according to the scale on the indicator area 1204 or the color of the indicator device; or the user can judge the opening or closing status of the valve clip 110 by seeing the scale or color on the indicator area 1204 through the observation window 12011. And the opening or closing status of the valve clip 110 is judged in combination with the force applied by the user on the knob 1202.

[0065] The utility model has the following beneficial effects:

[0066] 1. By setting the indication area 1204, the user can more intuitively judge the opening or closing angle of the valve clip, so that the user can more easily understand the working status of the valve clip 110;

[0067] 2. By setting the inclination angle, when the user applies force to the knob 1202 to actuate the push rod 1203 , the knob 1202 can provide feedback to the user's hand, so that the user can qualitatively judge the working status of the valve clip 110 .

[0068] 3. The entire process of opening and closing the valve clip 110 can be understood by directly reading the indication area 1204 and / or combining hand force feedback without using external imaging equipment, and the method is simple and convenient.

[0069] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0070] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A valve clip (110) device with an indication function, characterized in that: include A valve clip (110), wherein the valve clip (110) is used to clamp a heart valve; A core wire (130), the distal end of which is connected to the valve clip (110) and is used to control the operation of the valve clip (110); A control handle (120), wherein the proximal end of the core wire (130) extends into the control handle (120) and is fixed to the control handle (120), and when the control handle (120) is rotated, the control handle (120) can actuate the core wire (130) to move in the axial direction of the core wire (130); The control handle (120) comprises a handle housing (1201), wherein the handle housing (1201) is hollow and has a cavity inside. A knob (1202) that can rotate in a circumferential direction is provided at the proximal end of the handle housing (1201), and the inner surface of the knob (1202) is connected to a push rod (1203) via a thread. The push rod (1203) includes a plurality of regions, wherein the region near the distal end of the valve clamp device is arranged in a non-uniform diameter manner, and the diameter gradually decreases from the distal end to the proximal end; wherein the region near the proximal end of the valve clamp device is arranged in a non-uniform diameter manner, and the diameter gradually increases from the distal end to the proximal end; The distal end of the push rod (1203) at least partially extends from the axial position of the knob (1202) into the interior of the handle housing (1201), and an indication area (1204) is provided on the outer surface of the push rod (1203). The proximal end of the core wire (130) can pass through the cavity and be fixed on the push rod (1203); When the knob (1202) is rotated, the knob (1202) can actuate the push rod (1203) to move axially, and the push rod (1203) in turn pushes the core wire (130) to move in the axial direction, thereby actuating the valve clip (110) to open or close the valve clip (110). At the same time, through the cooperation of the knob (1202) and the push rod (1203), the opening or closing angle of the valve clip (110) is fed back to the indication area (1204).

2. A valve clip (110) device with an indication function according to claim 1, characterized in that: The push rod (1203) at least includes a first region (12031) and a second region (12032), the first region (12031) and the second region (12032) are integrally connected, the first region (12031) is located at a distal end of the push rod (1203), and the second region (12032) is located at a proximal end of the push rod (1203); The first region (12031) is non-uniformly arranged along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle is α degrees, the second region (12032) is non-uniformly arranged along the axial direction, the diameter gradually increases from the distal end to the proximal end, the inclination angle is β degrees, and tan(α / 2):tan(β / 2)=1:1~2.

3. A valve clip (110) device with an indication function according to claim 2, characterized in that: The first region (12031) is arranged in a non-uniform diameter along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle α is 5-10 degrees, and tan (α / 2): tan (β / 2) = 1:1.5~2.

4. A valve clip (110) device with an indication function according to claim 3, characterized in that: The first region (12031) is arranged in a non-uniform diameter along the axial direction, and the diameter gradually decreases from the distal end to the proximal end. The inclination angle α is 5 degrees, and tan(α / 2):tan(β / 2)=1:

2.

5. A valve clip (110) device with an indication function according to claim 1, characterized in that: The push rod (1203) at least includes a first region (12031), a second region (12032) and a third region (12033), wherein the first region (12031), the second region (12032) and the third region (12033) are integrally connected, and the first region (12031) is located at a distal end of the push rod (1203), the second region (12032) is located at a proximal end of the push rod (1203), and the third region (12033) is located between the first region (12031) and the second region (12032); The first region (12031) is non-uniformly arranged along the axial direction, the diameter gradually decreases from the distal end to the proximal end, the inclination angle is α degrees, the second region (12032) is non-uniformly arranged along the axial direction, the diameter gradually increases from the distal end to the proximal end, the inclination angle is β degrees, and tan(α / 2):tan(β / 2)=1:1~2.

6. A valve clip (110) device with an indication function according to claim 5, characterized in that: The first region (12031) is arranged in a non-uniform diameter along the axial direction, and the diameter gradually decreases from the distal end to the proximal end, the inclination angle α is 5-10 degrees, and tan (α / 2): tan (β / 2) = 1:1.5~2.

7. A valve clip (110) device with an indication function according to claim 5, characterized in that: The first region (12031) is arranged in a non-uniform diameter along the axial direction, and the diameter gradually decreases from the distal end to the proximal end. The inclination angle α is 5 degrees, and tan(α / 2):tan(β / 2)=1:

2.

8. A valve clip (110) device with an indication function according to claim 1, characterized in that: The indication area (1204) is located on the outer surface of the push rod (1203), and the indication area (1204) is provided with evenly arranged indication scales.

9. A valve clip (110) device with an indication function according to claim 1, characterized in that: Different areas on the surface of the indication area (1204) are coated with layers of different colors.

10. A valve clip (110) device with an indication function according to claim 8 or 9, characterized in that: The handle housing (1201) is provided with an observation window (12011), and a pointer (12012) is provided on the outside of the observation window (12011), so that the push rod (1203) in the handle housing (1201) can be seen through the observation window (12011).

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