Control handle and ultrasonic catheter equipment

Abstract

The utility model provides a control handle and ultrasonic catheter equipment. The control handle is used for connecting a catheter. The control handle comprises a body, a damping adjusting assembly, a first rotating part and a second rotating part are arranged on the body, the first rotating part and the second rotating part can rotate around the axis of the body, the damping adjusting assembly comprises an operating part and a damping part, and the operating part can rotate between a first angle position and a second angle position around the axis of the body. The damping part can move between a first position and a second position in the direction of the axis of the main body, the operating part abuts against the damping part, when the operating part is located at the first angle position, the damping part is located at the first position, and at the moment, the damping part abuts against the first rotating part so that rotating damping can be formed between the first rotating part and the second rotating part; when the operating part is located at the second angle position, the damping part is located at the second position, and rotation damping is relieved. Therefore, the locking and unlocking operations of the control handle are simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly to a control handle and an ultrasonic catheter device. Background Art

[0002] When an ultrasonic catheter device is in use, the catheter needs to be pushed along the curved shape of the blood vessel to the lesion position. After the distal end of the catheter reaches the lesion position, the angle needs to be adjustable to achieve ultrasonic cross-sectional examinations from different perspectives within the heart. Usually, the operation knob on the control handle of the ultrasonic catheter device can be used to control the movement of the distal end of the catheter to achieve examinations at different angles. After the distal end of the catheter is adjusted to the target angle, the angle of the distal end of the catheter needs to be locked to maintain the stability of the examination perspective. When the examination is over, the distal end of the catheter needs to be quickly reset.

[0003] In the existing ultrasonic catheter device, during the operation of the control handle, the doctor needs to hold down the operation knob with one hand to ensure a specific angle, and rotate the locking knob with the other hand to achieve locking, which is very troublesome; or, when resetting the distal end of the catheter, only manual control of the operation knob can be relied on to reset the distal end of the catheter, and rapid reset cannot be achieved. Therefore, there is an urgent need for a control handle that is more convenient for both locking and unlocking. Summary of the Utility Model

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present utility model, a control handle is provided. The control handle is used to connect a catheter. The control handle includes a main body, on which a damping adjustment component, a first rotating member, and a second rotating member are provided. Both the first rotating member and the second rotating member are rotatable around the axis of the main body. The damping adjustment component includes an operating member and a damping member. The operating member is rotatable around the axis of the main body between a first angular position and a second angular position. The damping member is movable between a first position and a second position along the direction of the axis of the main body. The operating member abuts against the damping member. Wherein, when the operating member is located at the first angular position, the damping member is located at the first position, and at this time the damping member abuts against the first rotating member so that a rotational damping is formed between the first rotating member and the second rotating member. When the operating member is located at the second angular position, the damping member is located at the second position, and at this time the rotational damping is released.

[0005] For the control handle provided by the present utility model, when the operating member is in the first angular position, the operating member abuts against the damping member and makes the damping member located at the first position, so that there is a rotational damping between the first rotating member and the second rotating member. In this way, when rotating the first rotating member and / or the second rotating member to drive the movement of the head end of the catheter, the rotational damping enables the head end of the catheter to be locked at any position and angle. Unless the rotational damping is overcome again and the first rotating member and / or the second rotating member are rotated, the position and angle of the head end of the catheter will not change. When the position and angle of the head end of the catheter need to be reset, only an external force needs to be applied to the operating member to make the operating member leave the first angular position, that is, to rotate the operating member by a certain angle from the first angular position to the second angular position. At this time, the rotational damping between the first rotating member and the second rotating member is not sufficient to restrict the reset of the catheter under the action of its own elastic force, and the catheter can achieve a reset with a controllable deformation speed. On this basis, when the operating member is rotated to the second angular position, at this time the damping member is located at the second position, and the rotational damping between the first rotating member and the second rotating member is released, and the head end of the catheter can be naturally reset, and at this time the reset speed of the catheter is relatively fast. When such a control handle is in use, the locking and unlocking of the position and angle of the head end of the catheter are very convenient. There is no need to perform additional operations to lock the position and angle of the head end of the catheter. When unlocking, only the operating member needs to be rotated to make it leave the first angular position, and the catheter can be reset. When the operating member is rotated to the second angular position, the head end of the catheter can be quickly reset, which is equivalent to being able to achieve one-key unlocking. The locking and unlocking operations of such a control handle are simpler, and the user experience of the operator can be better.

[0006] Exemplarily, a first reset member is further provided on the main body. The first reset member is connected to the operating member and applies a force to the operating member to keep the operating member in the first angular position.

[0007] Exemplarily, an elastic member is provided on the main body. The elastic member abuts between the damping member and the first rotating member, and the elastic member applies an elastic force to the damping member to keep the damping member in the second position.

[0008] Exemplarily, a first reset member is further provided on the main body. The first reset member is connected to the operating member and applies a force to the operating member to keep the operating member in the first angular position, and the force is greater than the elastic force.

[0009] Exemplarily, the operating member includes a first mating surface that spirally or obliquely extends around the axis of the main body, and the damping member includes a second mating surface that spirally or obliquely extends around the axis of the main body. The first mating surface abuts against the second mating surface.

[0010] Exemplarily, along the direction of the axis of the main body, the first mating surface has a first mating end close to the first rotating member. Along the direction of the axis of the main body, the second mating surface has a second mating end far from the first rotating member and a third mating end close to the first rotating member. When the operating member is in the first angular position, the first mating end abuts against the second mating end, so that the damping member is in the first position. When the operating member is in the second angular position, the first mating end abuts against the third mating end, so that the damping member is in the second position.

[0011] Exemplarily, the operating member includes a plurality of first mating surfaces arranged around the main body, and the damping member includes a plurality of second mating surfaces respectively corresponding to the plurality of first mating surfaces.

[0012] Exemplarily, the first rotating member includes a first rotating sleeve and a first connecting member. The first rotating sleeve is connected to the first connecting member, and the first connecting member is connected to the main body. The second rotating member includes a second rotating sleeve and a second connecting member. The second rotating sleeve is connected to the second connecting member, and the second connecting member is connected to the main body. A wire winding assembly is further provided on the main body and is located between the first connecting member and the second connecting member. When the operating member is in the first angular position, the damping member is in the first position. At this time, the damping member abuts against the first connecting member so that a rotational damping is formed among the first connecting member, the wire winding assembly and the second connecting member.

[0013] Exemplarily, the first rotating member has a first initial position corresponding to the initial state of the catheter. A second reset member is provided on the main body and is connected to the first rotating member to apply a force to the first rotating member to keep the first rotating member in the first initial position.

[0014] Exemplarily, the second rotating member has a second initial position corresponding to the initial state of the catheter. A third reset member is provided on the main body and is connected to the second rotating member to apply a force to the second rotating member to keep the second rotating member in the second initial position.

[0015] Exemplarily, the first rotating member is used to drive the head end of the catheter to move in a first plane through a first control wire, and the second rotating member is used to drive the head end of the catheter to move in a second plane through a second control wire. The force generated by the elastic force of the catheter due to deformation and transmitted through the first control wire to the first rotating member is less than the damping force acting on the first rotating member by the rotational damping, and the force generated by the elastic force of the catheter due to deformation and transmitted through the second control wire to the second rotating member is less than the damping force acting on the second rotating member by the rotational damping.

[0016] Exemplarily, a plurality of marking portions are circumferentially provided on the operating member, and the plurality of marking portions are used to prompt the operator of the angular position of the operating member.

[0017] Exemplarily, the operating member is rotatable about the axis of the main body within a first rotation interval between a first angular position and a second angular position and within a second rotation interval adjacent to the first rotation interval. When the operating member is located within the second rotation interval, the damping member is located at the first position. The plurality of marking portions include a plurality of different first marking portions and a plurality of identical second marking portions. When the operating member is located within the first rotation interval, the first marking portions correspond to the prompting positions on the main body. When the operating member is located within the second rotation interval, the second marking portions correspond to the prompting positions on the main body.

[0018] According to another aspect of the present invention, there is provided an ultrasonic catheter device. The ultrasonic catheter device includes a catheter and any one of the control handles as described above, and the catheter is connected to the control handle.

[0019] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the detailed implementation section. The summary of the invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0020] The advantages and features of the present invention will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0021] The following drawings of the present invention are used as a part of the present invention to understand the present invention. The embodiments and descriptions of the present invention are shown in the drawings to explain the principles of the present invention. In the drawings,

[0022] Figure 1 is a perspective view of a control handle according to an exemplary embodiment of the present invention;

[0023] Figure 2 is Figure 1 a sectional view of the control handle shown;

[0024] Figure 3 is Figure 1 an exploded view of the control handle shown;

[0025] Figure 4 is a partial sectional view of a control handle according to an exemplary embodiment of the present invention;

[0026] Figure 5 is a partial exploded view of a control handle according to an exemplary embodiment of the present invention;

[0027] Figure 6 is a partial exploded view of a control handle according to an exemplary embodiment of the present invention;

[0028] Figure 7A partial exploded view of a control handle according to an exemplary embodiment of the present utility model; and

[0029] Figure 8 A partial cross-sectional view of a control handle according to an exemplary embodiment of the present utility model.

[0030] Wherein, the above-mentioned drawings include the following reference numerals:

[0031] 10. Control handle; 100. Main body; 101. Gripping part; 102. End cap; 110. First reset member; 120. Damping adjustment assembly; 121. Operating member; 1211. First mating surface; 1211a. First mating end; 1212. Winding part; 1213. Marking part; 1213a. First marking part; 1213b. Second marking part; 122. Damping member; 1221. Second mating surface; 1221a. Second mating end; 1221b. Third mating end; 130. First rotating member; 131. First rotating sleeve; 132. First connecting member; 140. Second rotating member; 141. Second rotating sleeve; 142. Second connecting member; 150. Wire winding assembly; 151. Steering column; 160. Elastic member; 170. Friction plate; 20. Catheter; 30. First control wire; 40. Second control wire. Detailed implementation manners

[0032] In the following description, a large number of details are provided to enable a thorough understanding of the present utility model. However, those skilled in the art can understand that the following description only exemplarily shows the preferred embodiments of the present utility model, and the present utility model can be implemented without one or more of such details. In addition, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described in detail.

[0033] According to one aspect of the present utility model, a control handle is provided. The control handle can be used to connect to a catheter. Therefore, according to another aspect of the present utility model, an ultrasonic catheter device is provided. The ultrasonic catheter device can include a catheter and any one of the control handles to be introduced below. The catheter can include a distal end tube, a flexible hose, and a traction member. The distal end tube can be at least partially soft. The flexible hose can have a certain elasticity and can also have a certain bendability. Refer to Figure 1, the catheter 20 can be connected to the control handle 10. For example, a flexible hose can be connected to the control handle 10 at one end and to the head end tube at the other end. The traction member can be threaded through the flexible hose, and the flexible hose can be driven to bend in a predetermined direction by the traction member. When the external force is removed, the bent flexible hose will reset under the action of its own elastic force. One end of the traction member can be connected to the head end tube, and the other end can pass through the flexible hose and be connected to the control handle 10. By using the control handle 10, the head end tube can be driven to move through the traction member, so that the head end of the catheter 20 can be controlled to move through the control handle 10, and the head end of the catheter 20 can reach a predetermined position at a predetermined angle. The traction member can be a control wire or any other suitable form. The flexible hose and the head end tube can be integrally formed, or can be separately processed and then connected together in various forms such as snap connection, welding or threaded connection. When such an ultrasonic catheter device is in use, after the head end of the catheter 20 is controlled to move by the control handle 10, due to the certain elasticity of the flexible hose part of the catheter 20, such a catheter 20 is more easily reset.

[0034] Referring to Figure 2 and Figure 3 , the control handle 10 can include a main body 100. A damping adjustment component 120, a first rotating member 130 and a second rotating member 140 can be provided on the main body 100. Both the first rotating member 130 and the second rotating member 140 can rotate around the axis of the main body 100. The main body 100 can include a holding portion 101, a shaft body (not shown in the figure) and an end cap 102. The shaft body can be connected between the holding portion 101 and the end cap 102. The catheter 20 can be connected to the end cap 102. The damping adjustment component 120, the first rotating member 130 and the second rotating member 140 can be sleeved on the shaft body. In the illustrated embodiment, the first rotating member 130 is close to the holding portion 101 and the second rotating member 140 is close to the end cap 102. In other embodiments, it can also be that the first rotating member 130 is close to the end cap 102 and the second rotating member 140 is close to the holding portion 101. The relative positional relationship among the damping adjustment component 120, the first rotating member 130 and the second rotating member 140 can be arbitrary. For example, as Figure 1 shown, the damping adjustment component 120, the first rotating member 130 and the second rotating member 140 can be arranged in sequence. In other embodiments not shown, it can also be that the second rotating member 140, the first rotating member 130 and the damping adjustment component 120 are arranged in sequence, or the first rotating member 130, the damping adjustment component 120 and the second rotating member 140 are arranged in sequence. The first rotating member 130 and the second rotating member 140 here are only for distinction and are not specifically defined.

[0035] The traction member can be in the form of a control wire. Referring to Figure 4 and Figure 5, the first rotating member 130 can be used to drive the head end of the catheter 20 to move in the first plane through the first control wire 30, and the second rotating member 140 can be used to drive the head end of the catheter 20 to move in the second plane through the second control wire 40. The first rotating member 130 can include a first rotating sleeve 131 and a first connecting member 132. The first rotating sleeve 131 can be connected to the first connecting member 132 in various forms such as snap connection, welding or threaded connection and sleeved on the first connecting member 132. The operator can rotate the first rotating sleeve 131 to drive the first connecting member 132 to rotate. The two ends of the first control wire 30 can be fixedly connected to the head end of the catheter 20, and at least a part of the portion between the two ends can be connected to the first connecting member 132. For example, the two ends of the first control wire 30 can be fixedly connected to the head end of the catheter 20. At this time, the first control wire 30 can be in a "U" shape as a whole, and an arc segment can be formed in the portion between the two ends of the first control wire 30, that is, the arc segment part in the "U" shape. A wire winding column can be provided on the first connecting member 132, and such an arc segment on the first control wire 30 can bypass the wire winding column, or a part of such an arc segment on the first control wire 30 can be wound around the wire winding column. Thus, when the first connecting member 132 rotates, the wire winding column can drive the first control wire 30 to move. For example, one end of the two ends of the first control wire 30 in the "U" shape can extend and the other end can retract, so as to drive the head end of the catheter 20 to move in the first plane. Thus, it can be realized that the first rotating member 130 drives the head end of the catheter 20 to move in the first plane through the first control wire 30. Similarly, the second rotating member 140 can include a second rotating sleeve 141 and a second connecting member 142. The second rotating member 140 can drive the head end of the catheter 20 to move in the second plane through the second control wire 40. The form of driving the head end of the catheter 20 to move can be the same as that of the first rotating member 130, which will not be elaborated here. The first plane and the second plane can be perpendicular to each other or can be at any angle to each other. The first plane and the second plane are only used for distinction here and have no special limitation. Under the combined action of the first control wire 30 and the second control wire 40, the flexible hose of the catheter 20 can be bent at any angle, and the head end of the catheter 20 can reach a predetermined position at a predetermined angle.

[0036] The damping adjustment assembly 120 may include an operating member 121 and a damping member 122. The operating member 121 is rotatable between a first angular position and a second angular position about the axis of the main body 100 (axis C-C shown in the figure), and the damping member 122 is movable between a first position and a second position in the direction along the axis C-C of the main body 100. The operating member 121 may abut against the damping member 122. The surface of the operating member 121 that abuts against the damping member 122 may be helically extended or inclinedly extended about the axis C-C of the main body 100. Thus, when the operating member 121 rotates about the axis C-C of the main body 100, the damping member 122 abutted by the operating member 121 will move along the axis C-C of the main body 100. The first position may be closer to the first rotating member 130 than the second position. When the operating member 121 is in the first angular position, the damping member 122 may be in the first position, and when the operating member 121 is in the second angular position, the damping member 122 may be in the second position. Thus, when the damping member 122 is in the first position, it may abut tightly against the first rotating member 130, or when it is in the second position, it may disengage from the first rotating member 130, which will be described in detail below. For the damping member 122 located between the first position and the second position, the damping member 122 contacts the first rotating member 130, and different magnitudes of frictional forces exist between the damping member 122 and the first rotating member 130 according to the distance between the damping member 122 and the first position. For example, the closer the damping member 122 is to the first position, the greater the frictional force between the damping member 122 and the first rotating member 130. When the damping member 122 is in the first position, that is, abutting tightly against the first rotating member 130, a relatively large frictional force exists between the damping member 122 and the first rotating member 130 at this time; when the damping member 122 moves from the first position to the second position, the frictional force between the damping member 122 and the first rotating member 130 gradually decreases; when the damping member 122 is in the second position, that is, disengaging from the first rotating member 130 or having only a relatively small frictional force with the first rotating member 130, the first position and the second position here are only for distinction and have no special limitations. When the operating member 121 is in the first angular position, the damping member 122 may be in the first position, and at this time, the damping member 122 may abut against the first rotating member 130 so that a rotational damping can be formed between the first rotating member 130 and the second rotating member 140. When the operating member 121 is in the first angular position, the operating member 121 abuts against the damping member 122 and makes the damping member 122 in the first position. The first rotating member 130 may include a first rotating sleeve 131 and a first connecting member 132. The first rotating sleeve 131 may be connected to the first connecting member 132, and the damping member 122 in the first position may abut against the first connecting member 132, so that the operating member 121, the damping member 122, and the first rotating member 130 can abut tightly in sequence. The so-called abutment of the damping member 122 against the first connecting member 132 may be a direct abutment between the two.Alternatively, the damping member 122 can be indirectly abutted against the first connecting member 132, and the indirect abutment can be achieved through various forms of connecting members such as elastic members or friction plates. The meaning of rotational damping is that when a relatively small external force is applied, such an external force cannot cause the first rotating member 130 and the second rotating member 140 to rotate relative to each other. The conduit 20 generates an elastic force due to deformation. Here, the relatively small external force can be the elastic force transmitted to the first rotating member 130 via the first control wire 30, or the elastic force transmitted to the second rotating member 140 via the second control wire 40. At this time, the first rotating member 130 can be abutted against the second rotating member 140. On the basis that the operating member 121 and the damping member 122 are tightly abutted against each other and the damping member 122 and the first rotating member 130 are tightly abutted against each other, the first rotating member 130 can be tightly abutted against the second rotating member 140, so that a relatively large frictional force can exist between the first rotating member 130 and the second rotating member 140, thereby achieving the formation of rotational damping between the first rotating member 130 and the second rotating member 140. Similarly, a winding assembly 150 can be provided between the first rotating member 130 and the second rotating member 140. The first rotating member 130 is abutted against the winding assembly 150, and the winding assembly 150 is abutted against the second rotating member 140. In this way, on the basis that the operating member 121 and the damping member 122 are tightly abutted against each other and the damping member 122 and the first rotating member 130 are tightly abutted against each other, the first rotating member 130, the winding assembly 150, and the second rotating member 140 can also be tightly abutted against each other in sequence, thereby achieving the formation of rotational damping between the first rotating member 130 and the second rotating member 140.

[0037] When the operating member 121 is located between the first angular position and the second angular position, the damping member 122 can be located between the first position and the second position. At this time, the damping between the first rotating member 130 and the second rotating member 140 is relatively small, less than the rotational damping between the first rotating member 130 and the second rotating member 140 when the operating member 121 is located at the first angular position. The conduit 20 will slowly return to its original position under the action of the elastic force generated by its own deformation, which can avoid damage to the internal organs caused by too fast resetting.

[0038] When the operating member 121 is in the second angular position, the damping member 122 can be in the second position. At this time, the damping member 122 can be disengaged from the first connecting member 132, so that the damping member 122 can be disengaged from the first rotating member 130 at this time; or there can be only a small frictional force between the damping member and the first connecting member 132 at this time, so that there can be only a small frictional force between the damping member 122 and the first rotating member 130 at this time. At this time, it can be considered that the rotational damping is released. The damping member 122 in the second position can be disengaged from the first connecting member 132, which can mean that the damping member 122 is not in contact with the first connecting member 132, or that although the damping member 122 is in contact with the first connecting member 132, the damping member 122 and the first connecting member 132 are not in a state of being pressed against each other. Thus, the frictional force between them can be very small, or the damping member 122 and the first connecting member 132 can be in a state of just touching, and there is no frictional force between the two in the just-touching state. At this time, it is equivalent to that the damping member 122 has no constraint on the first rotating member 130, and there is naturally no rotational damping between the first rotating member 130 and the second rotating member 140.

[0039] When such a control handle 10 is in use, when the operating member 121 is in the first angular position, the damping member 122 is in the first position at this time. The damping member 122 abuts against the first rotating member 130, and there is a rotational damping between the first rotating member 130 and the second rotating member 140. Rotating the first rotating member 130 can control the movement of the head end of the catheter 20 through the first control wire 30, and rotating the second rotating member 140 can control the movement of the head end of the catheter 20 through the second control wire 40. It can be understood that the external force applied around the axis C-C of the main body 100 when rotating the first rotating member 130 and the second rotating member 140 obviously needs to be greater than the damping force generated by the rotational damping. In this way, after the head end of the catheter 20 reaches the predetermined position at a predetermined angle, when the external force is removed, under the action of the rotational damping, the first rotating member 130 and the second rotating member 140 will remain in the position before the external force is removed and will not rotate, thus realizing the position locking of the head end of the catheter 20 through the rotational damping. Since the operating member 121 remains in the first angular position, the damping member 122 remains in the first position, and the rotational damping between the first rotating member 130 and the second rotating member 140 always exists, and the locking can be achieved at any time as long as the external force is removed. When it is necessary to unlock the position of the head end of the catheter 20, an external force around the axis C-C of the main body 100 can be applied to the operating member 121 to make the operating member 121 rotate from the first angular position to the second angular position. When the operating member 121 is in the second angular position, and thus the damping member 122 is in the second position, the damping member 122 no longer abuts against the first rotating member 130, and the rotational damping between the first rotating member 130 and the second rotating member 140 is released. Since the catheter 20 generates an elastic force due to deformation, there is no rotational damping between the first rotating member 130 and the second rotating member 140, and thus the catheter 20 cannot be restricted by the first control wire 30 and the second control wire 40. The catheter 20 can quickly reset under the action of the elastic force generated by its own deformation, thus realizing the unlocking and resetting of the catheter 20.

[0040] When the operating member 121 is in the first angular position and the damping member 122 is in the first position at this time, it can be considered to be in a locked state. After the head end of the catheter 20 reaches the predetermined position at a predetermined angle, the position of the head end of the catheter 20 can be locked; when the operating member 121 is in the second angular position and the damping member 122 is in the second position at this time, it can be considered to be in an unlocked state, and the catheter 20 can quickly reset under the action of the elastic force generated by its own deformation. When the operating member 121 is between the first angular position and the second angular position and the damping member 122 is between the first position and the second position at this time, there is damping between the first rotating member 130 and the second rotating member 140, but the damping at this time is less than the rotational damping in the locked state. It can be understood that through reasonable design, when the operating member 121 is between the first angular position and the second angular position, the catheter 20 can reset under the action of the elastic force generated by its own deformation, but the reset speed at this time is slower than that in the unlocked state, and the closer the operating member is to the second angular position, the smaller the damping between the first rotating member 130 and the second rotating member 140, and the controllable reset speed of the catheter 20 can be achieved.

[0041] It should be noted that the first angular position and the second angular position mentioned here may not be precise angular position points, and the first angular position and the second angular position can be two angular position intervals respectively. When in the locked state, the angular position where the operating member 121 is located can be considered to be within the angular position interval corresponding to the first angular position, and the same applies to the angular position interval corresponding to the second angular position. Similarly, the first position and the second position mentioned here may not be precise position points, and the first position and the second position can be two position intervals respectively. When in the locked state, the position where the damping member 122 is located can be considered to be within the position interval corresponding to the first position. At this time, the damping member 122 abuts against the first rotating member 130 to make there be a large enough rotational damping between the first rotating member 130 and the second rotating member 140, and the same applies to the position interval corresponding to the second position. Among them, it can be considered that the operating member 121 within the angular position interval corresponding to the first angular position can make the damping member 122 be within the position interval corresponding to the first position; the operating member 121 within the angular position interval corresponding to the second angular position can make the damping member 122 be within the position interval corresponding to the second position.

[0042] Exemplarily, refer to Figure 1 and Figure 3, at least one groove may be provided on the surfaces of the first rotating sleeve 131 and the second rotating sleeve 141, so that the operator can put fingers into the grooves and then rotate the first rotating sleeve 131 or the second rotating sleeve 141. In the initial state, the grooves of the first rotating sleeve 131 and the second rotating sleeve 141 may be in corresponding positions. At this time, the operating member 121 may be located at the second angular position, and the damping member 122 may be located at the second position. In this way, when performing the reset operation, the operator can determine whether the operation is in place by checking whether the grooves of the first rotating sleeve 131 and the second rotating sleeve 141 are aligned.

[0043] For the control handle 10 provided by the present utility model, when the operating member 121 is at the first angular position, the operating member 121 abuts against the damping member 122 and makes the damping member 122 located at the first position, so that there is a rotational damping between the first rotating member 130 and the second rotating member 140. In this way, when rotating the first rotating member 130 and / or the second rotating member 140 to drive the movement of the head end of the catheter 20, the rotational damping enables the head end of the catheter 20 to be locked at any position and angle. Unless the rotational damping is overcome again and the first rotating member 130 and / or the second rotating member 140 are rotated, the position and angle of the head end of the catheter 20 will not change. When the position and angle of the head end of the catheter 20 need to be reset, only an external force needs to be applied to the operating member 121 to make the operating member 121 leave the first angular position, that is, to rotate the operating member 121 by a certain angle from the first angular position to the second angular position. At this time, the damping between the first rotating member 130 and the second rotating member 140 is not sufficient to restrict the reset of the catheter 20 under its own elastic force, and the catheter 20 can achieve a reset with a controllable deformation speed. On this basis, when the operating member 121 is rotated to the second angular position, at this time the damping member 122 is located at the second position, and the rotational damping between the first rotating member 130 and the second rotating member 140 is released, and the head end of the catheter 20 can be naturally reset, and at this time the reset speed of the catheter 20 is relatively fast. When such a control handle 10 is in use, the locking and unlocking of the position and angle of the head end of the catheter 20 are very convenient. There is no need to perform additional operations to lock the position and angle of the head end of the catheter 20. When unlocking, only the operating member 121 needs to be rotated to make it leave the first angular position, and the catheter 20 can be reset. When the operating member 121 is rotated to the second angular position, the head end of the catheter 20 can be quickly reset, which is equivalent to being able to achieve one-key unlocking. The locking and unlocking operations of such a control handle 10 are simpler, and the user experience of the operator can be better.

[0044] In an embodiment of the present utility model, refer to Figure 2 and Figure 3, a first reset member 110 may also be provided on the main body 100. The first reset member 110 may be connected to the operating member 121 and apply a force to the operating member 121 to keep the operating member 121 in the first angular position. The first reset member 110 may be connected to any suitable position on the main body 100 as needed. For example, the first reset member 110 may be connected to the shaft body, may also be connected to the holding portion 101, or may also be connected to the end cap 102. The first reset member 110 may be connected to the operating member 121 to apply a force to the operating member 121. Refer to Figure 2 , the operating member 121 may have a winding portion 1212, and the first reset member 110 may be connected to the operating member 121 by winding around the winding portion 1212. Of course, the first reset member 110 may be a torsion spring or other various suitable forms. According to different forms of the first reset member 110, the first reset member 110 may be connected to the main body 100 and the operating member 121 respectively through various suitable forms. The force applied by the first reset member 110 to the operating member 121 may cause the operating member 121 to rotate or have a tendency to rotate. When the control handle 10 as a whole is not affected by an external force, the first reset member 110 may cause the operating member 121 located at the second angular position to rotate to the first angular position, and may continuously apply a force pointing from the second angular position to the first angular position to the operating member 121 located at the first angular position, so as to keep the operating member 121 in the first angular position. It can be understood that the force pointing from the second angular position to the first angular position here may have a direction around the axis C-C of the main body 100, and the acting form may be similar to torque.

[0045] When such a control handle 10 is in use, in its natural state, the operating member 121 is held at the first angular position under the action of the first restoring member 110. At this time, the damping member 122 is located at the first position, the damping member 122 abuts against the first rotating member 130, and there is a rotational damping between the first rotating member 130 and the second rotating member 140. Rotating the first rotating member 130 can control the movement of the head end of the catheter 20 through the first control wire 30, and rotating the second rotating member 140 can control the movement of the head end of the catheter 20 through the second control wire 40. It can be understood that the external force applied around the axis C-C of the main body 100 when rotating the first rotating member 130 and the second rotating member 140 obviously needs to be greater than the damping force generated by the rotational damping. After the head end of the catheter 20 reaches the predetermined position at a predetermined angle in this way, when the external force is removed, under the action of the rotational damping, the first rotating member 130 and the second rotating member 140 will remain in the position before the external force is removed and will not rotate, thus realizing the position locking of the head end of the catheter 20 through the rotational damping. Since the damping member 122 remains at the first position when the operating member 121 is held at the first angular position, the rotational damping between the first rotating member 130 and the second rotating member 140 always exists, and the locking can be achieved at any time as long as the external force is removed. When it is necessary to unlock the position of the head end of the catheter 20, an external force around the axis C-C of the main body 100 can be applied to the operating member 121 to rotate the operating member 121 from the first angular position to the second angular position, and this external force needs to be greater than the acting force of the first restoring member 110 on the operating member 121. For example, the first restoring member 110 in the form of a torsion spring continuously applies a force to keep the operating member 121 at the first angular position. An external force can be applied to overcome the acting force of the first restoring member 110 on the operating member 121 to rotate the operating member 121 from the first angular position to the second angular position. At this time, the external force can be from the first angular position around the axis C-C of the main body 100 and point to the second angular position. When the operating member 121 is located at the second angular position, and thus the damping member 122 is located at the second position, the damping member 122 no longer abuts against the first rotating member 130, and the rotational damping between the first rotating member 130 and the second rotating member 140 is released. Since the catheter 20 generates an elastic force due to deformation, there is no rotational damping between the first rotating member 130 and the second rotating member 140, and thus the catheter 20 cannot be restricted by the first control wire 30 and the second control wire 40. The catheter 20 can quickly reset under the action of the elastic force generated by its own deformation, and thus the unlocking and resetting of the catheter 20 are realized.

[0046] When no external force acts on the damping adjustment assembly 120, the operating member 121 is held at the first angular position under the action of the first reset member 110. At this time, the operating member 121 abuts against the damping member 122 and makes the damping member 122 located at the first position, so that there is a rotational damping between the first rotating member 130 and the second rotating member 140 under normal conditions. In this way, when the first rotating member 130 and / or the second rotating member 140 are rotated to drive the head end of the catheter 20 to move, the rotational damping enables the head end of the catheter 20 to be locked at any position and angle. Unless the rotational damping is overcome again and the first rotating member 130 and / or the second rotating member 140 are rotated, the position and angle of the head end of the catheter 20 will not change. When it is necessary to reset the position and angle of the head end of the catheter 20, only an external force needs to be applied to the operating member 121 to make the operating member 121 rotate to the second angular position, and the rotational damping between the first rotating member 130 and the second rotating member 140 is reduced or even released, and the head end of the catheter 20 can be naturally reset. When such a control handle 10 is used, the locking and unlocking of the position and angle of the head end of the catheter 20 are very convenient. There is no need to perform additional operations to lock the position and angle of the head end of the catheter 20. When unlocking, only the operating member 121 needs to be rotated to the second angular position, and the head end of the catheter 20 can be quickly reset, which is equivalent to realizing one-key unlocking. The locking and unlocking operations of such a control handle 10 are simpler, and the user experience of the operator can be better.

[0047] In an embodiment of the present invention, refer to Figure 6 、 Figure 7 and Figure 8, an elastic member 160 may be provided on the main body 100. The elastic member 160 may abut between the damping member 122 and the first rotating member 130, and the elastic member 160 may apply an elastic force to the damping member 122 to keep the damping member 122 in the second position. When the damping member 122 is not subject to other constraints, for example, when the operating member 121 is in the second angular position, the elastic force applied by the elastic member 160 to the damping member 122 may keep the damping member 122 in the second position, or may cause the damping member 122 to move from the first position to the second position. The elastic force applied by the elastic member 160 to the damping member 122 can be considered to point from the first position to the second position. The elastic member 160 may be a spring or various other forms. Taking the elastic member 160 as a spring as an example, when the operating member 121 is in the first angular position, the operating member 121 presses against the damping member 122 to make the damping member 122 in the first position. At this time, the elastic member 160 in the form of a spring is in a compressed state, and the damping member 122 presses against the first rotating member 130 through the elastic member 160, which can make the rotational damping between the first rotating member 130 and the second rotating member 140 greater. When the operating member 121 is in the second angular position, the operating member 121 no longer presses against the damping member 122. Under the action of the elastic force of the elastic member 160, the damping member 122 can move from the first position to the second position faster. With the setting of the elastic member 160, when the operating member 121 is in the first angular position, the damping member 122 presses against the first rotating member 130 through the elastic member 160, which can make the rotational damping between the first rotating member 130 and the second rotating member 140 greater, and the position locking of the head end of the catheter 20 by the control handle 10 is more stable; when the operating member 121 is in the second angular position, the damping member 122 can quickly move from the first position to the second position under the action of the elastic member 160, and the position unlocking of the head end of the catheter 20 by the control handle 10 is faster.

[0048] Exemplarily, the acting force exerted by the first reset member 110 on the operating member 121 can be greater than the elastic force exerted by the elastic member 160 on the damping member 122. When the operating member 121 is at the first angular position, the damping member 122 is at the first position. The first reset member 110 exerts a force on the operating member 121 to keep the operating member 121 at the first angular position. It can also be considered that the acting force of the first reset member 110 on the operating member 121 has the effect of keeping the damping member 122 at the first position. Under the action of the elastic member 160, for the damping member 122 at the first position, the elastic force exerted by the elastic member 160 on the damping member 122 points from the first position to the second position. The elastic force exerted by the elastic member 160 on the damping member 122 has a tendency to move the damping member 122 from the first position to the second position, which is equivalent to being opposite to the action of the first reset member 110 on the damping member 122. The acting force exerted by the first reset member 110 on the operating member 121 is greater than the elastic force exerted by the elastic member 160 on the damping member 122, which can ensure that when the operating member 121 is at the first angular position, the damping member 122 can be stably located at the first position, and thus can ensure that the control handle 10 can lock the position of the head end of the catheter 20, improving the stability of the overall device during use.

[0049] Exemplarily, referring to Figure 1 , Figure 6 and Figure 7 , the elastic member 160 and the first rotating member 130 can be in abutment through a friction plate 170. A friction plate 170 can be provided between the elastic member 160 and the first rotating member 130. When the operating member 121 is at the first angular position, the damping member 122 is at the first position, and the damping member 122 is pressed tightly against the first rotating member 130 through the elastic member 160. In fact, the elastic member 160 is in abutment against the first rotating member 130 through the friction plate 170. The setting of the friction plate 170 can increase the friction force between the elastic member 160 and the first rotating member 130. Thus, the automatic locking of the position of the head end of the catheter 20 in the first plane after removing the external force can be more stable. This also makes the position locking of the head end of the catheter 20 by the control handle 10 more stable.

[0050] In an embodiment of the present invention, referring to Figure 6 and Figure 7, the operating member 121 may include a first mating surface 1211 that spirally or obliquely extends around the axis C-C of the main body 100, and the damping member 122 may include a second mating surface 1221 that spirally or obliquely extends around the axis C-C of the main body 100. The first mating surface 1211 may abut against the second mating surface 1221. Since both the first mating surface 1211 and the second mating surface 1221 spirally or obliquely extend around the axis C-C of the main body 100, through the abutment between the first mating surface 1211 and the second mating surface 1221, the rotation of the operating member 121 around the axis C-C of the main body 100 can be converted into the movement of the damping member 122 in the direction along the axis C-C of the main body 100, so that when the operating member 121 is at the first angular position, the damping member 122 is at the first position, and when the operating member 121 is at the second angular position, the damping member 122 is at the second position. There is a first circumferential direction and a second circumferential direction opposite thereto around the axis C-C of the main body 100. For example, the first circumferential direction may be the clockwise direction around the axis C-C of the main body 100, and the second circumferential direction may be the counterclockwise direction around the axis C-C of the main body 100. The first mating surface 1211 may gradually approach the damping member 122 in the first circumferential direction. At this time, the operating member 121 can be rotated in the first circumferential direction to drive the damping member 122 to move in the direction from the second position to the first position; the first mating surface 1211 may also gradually approach the damping member 122 in the second circumferential direction. At this time, the operating member 121 can be rotated in the second circumferential direction to drive the damping member 122 to move in the direction from the second position to the first position. Such a control handle 10 can design the inclination direction of the first mating surface 1211 and / or the second mating surface 1221 as needed to realize the rotation of the operating member 121 from the first angular position to the second angular position by rotating the operating member 121 in the first circumferential direction, or to realize the rotation of the operating member 121 from the first angular position to the second angular position by rotating the operating member 121 in the second circumferential direction. In this way, it is realized that the movement of the damping member 122 in the direction along the axis C-C of the main body 100 is caused by the rotation of the operating member 121 around the axis C-C of the main body 100. Such first mating surface 1211 and second mating surface 1221 are easy to produce and process, and the overall structure is also simpler.

[0051] Specifically, along the direction of the axis C-C of the main body 100, the first mating surface 1211 may have a first mating end 1211a close to the first rotating member 130. Along the direction of the axis C-C of the main body 100, the second mating surface 1221 may have a second mating end 1221a away from the first rotating member 130 and a third mating end 1221b close to the first rotating member 130. When the operating member 121 is at the first angular position, the first mating end 1211a may abut against the second mating end 1221a so that the damping member 122 can be located at the first position. When the operating member 121 is at the second angular position, the first mating end 1211a may abut against the third mating end 1221b so that the damping member 122 can be located at the second position. When the first mating end 1211a abuts against the second mating end 1221a, at this time the operating member 121 is at the first angular position, and the damping member 122 is closer to the first rotating member 130 along the direction of the axis C-C of the main body 100, that is, the damping member 122 is located at the first position, so as to tightly press against the first rotating member 130; when the first mating end 1211a abuts against the third mating end 1221b, at this time the operating member 121 may be at the second angular position, and the damping member 122 is farther away from the first rotating member 130 along the direction of the axis C-C of the main body 100, so that it can disengage from the first rotating member 130 and release the rotational damping between the first rotating member 130 and the second rotating member 140, that is, the damping member 122 is located at the second position. When the first mating end 1211a abuts against the second mating end 1221a, the operating member 121 is at the first angular position and the damping member 122 is at the first position; when the first mating end 1211a abuts against the third mating end 1221b, the operating member 121 is at the second angular position and the damping member 122 is at the second position. When such end mating is in place, it can give the operator a clearer prompt. When the control handle 10 switches between the locked and unlocked states of the head end position of the catheter 20, it can also have a clearer prompt. When the operator rotates the operating member 121 around the axis C-C of the main body 100, the operator can better grasp the locked or unlocked state of the control handle 10, and the user experience is better.

[0052] Exemplarily, the operating member 121 may include a plurality of first mating surfaces 1211. The plurality of first mating surfaces 1211 may be arranged around the main body 100. Specifically, the plurality of first mating surfaces 1211 may be arranged around the axis C-C of the main body 100. The damping member 122 may include a plurality of second mating surfaces 1221 respectively corresponding to the plurality of first mating surfaces 1211. The plurality of first mating surfaces 1211 may respectively abut against the plurality of second mating surfaces 1221. In this way, the abutting area between the operating member 121 and the damping member 122 is larger, and the overall stability is better. When the operating member 121 is in the first angular position and the damping member 122 is in the first position, the position locking of the head end of the catheter 20 by the control handle 10 is more stable; when the operating member 121 is in the second angular position and the damping member 122 is in the second position, the position unlocking of the head end of the catheter 20 by the control handle 10 is also more stable. Exemplarily, the plurality of first mating surfaces 1211 and the plurality of second mating surfaces 1221 are evenly distributed. One first mating surface 1211 and one second mating surface 1221 may form a group. The abutting positions of the first mating surface 1211 and the second mating surface 1221 in each group are the same. The superposition of these abutting positions can achieve a larger abutting area and a greater damping effect.

[0053] In an embodiment of the present invention, refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5, the first rotating member 130 may include a first rotating sleeve 131 and a first connecting member 132. The first rotating sleeve 131 may be connected to the first connecting member 132, and the first connecting member 132 may be connected to the main body. The second rotating member 140 may include a second rotating sleeve 141 and a second connecting member 142. The second rotating sleeve 141 may be connected to the second connecting member 142, and the second connecting member 142 may be connected to the main body 100. A wire winding assembly 150 may also be provided on the main body 100. The wire winding assembly 150 is located between the first connecting member 132 and the second connecting member 142. When the operating member 121 is in the first angular position, the damping member 122 is in the first position. At this time, the damping member 122 may abut against the first connecting member 132 so that a rotational damping can be formed among the first connecting member 132, the wire winding assembly 150, and the second connecting member 142. At least a part of each of the first control wire 30 and the second control wire 40 may be wound around the wire winding assembly 150. Taking the damping member 122, the first connecting member 132, the wire winding assembly 150, and the second connecting member 142 arranged in sequence as an example, when the operating member 121 is in the first angular position, the damping member 122 may be in the first position. At this time, the damping member 122, the first connecting member 132, the wire winding assembly 150, and the second connecting member 142 may abut against each other in sequence, that is, the damping member 122, the first rotating member 130, the wire winding assembly 150, and the second rotating member 140 may abut against each other in sequence, so that a rotational damping can be formed between the first rotating member 130 and the second rotating member 140. The wire winding assembly 150 may change the extending directions of the first control wire 30 and the second control wire 40. The first control wire 30 and the second control wire 40 extending along the axis C-C of the main body 100 may enter the interior of the wire winding assembly 150 at the openings on the side wall of the wire winding assembly 150, and under the guidance of the turning column 151 inside the wire winding assembly 150, the first control wire 30 and the second control wire 40 that originally extended along the axis C-C of the main body 100 may be turned to extend in the direction where the axis C-C of the main body 100 is located, and thus extend along the axial direction of the catheter 20 to the head end of the catheter 20. The arrangement of the wire winding assembly 150 may facilitate the realization that the rotation of the first rotating member 130 and the second rotating member 140 around the axis C-C of the main body 100 drives the movement of the head end of the catheter 20. Moreover, the arrangement of the wire winding assembly 150 may prevent the first control wire 30 and the second control wire 40 inside the control handle 10 from being wound around each other after the first rotating member 130 and / or the second rotating member 140 rotates.

[0054] Exemplarily, referring to Figure 4 and Figure 5, when the operating member 121 is in the first angular position, the first rotating member 130 and the wire winding assembly 150 can be abutted against each other through the friction plate 170. A friction plate 170 can be provided between the first rotating member 130 and the wire winding assembly 150. When the operating member 121 is in the first angular position and the damping member 122 is in the first position, the first rotating member 130 and the wire winding assembly 150 are tightly abutted. In fact, the first rotating member 130 is abutted against the wire winding assembly 150 through the friction plate 170. The setting of the friction plate 170 can increase the frictional force between the first rotating member 130 and the wire winding assembly 150, so that when the operating member 121 is in the first angular position and the damping member 122 is in the first position, the rotational damping between the first rotating member 130 and the second rotating member 140 can be greater. Thus, the position locking of the head end of the catheter 20 automatically achieved by removing the external force can be more stable.

[0055] Exemplarily, refer to Figure 4 and Figure 5 , when the operating member 121 is in the first angular position, the wire winding assembly 150 and the second rotating member 140 can be abutted against each other through the friction plate 170. A friction plate 170 can be provided between the wire winding assembly 150 and the second rotating member 140. When the operating member 121 is in the first angular position and the damping member 122 is in the first position, the wire winding assembly 150 and the second rotating member 140 are tightly abutted. In fact, the wire winding assembly 150 is abutted against the second rotating member 140 through the friction plate 170. The setting of the friction plate 170 can increase the frictional force between the wire winding assembly 150 and the second rotating member 140, so that when the operating member 121 is in the first angular position and the damping member 122 is in the first position, the rotational damping between the wire winding assembly 150 and the second rotating member 140 can be greater. Thus, the position locking of the head end of the catheter 20 automatically achieved by removing the external force can be more stable.

[0056] In an embodiment of the present utility model, the first rotating member 130 may have a first initial position corresponding to the initial state of the catheter 20. A second reset member (not shown in the figure) may be provided on the main body 100. The second reset member may be connected to the first rotating member 130 and may apply a force to the first rotating member 130 to keep the first rotating member 130 in the first initial position. The second reset member may be a torsion spring or any other suitable form. Due to the provision of the second reset member, when the operating member 121 rotates from the first angular position to the second angular position around the axis C-C of the main body 100, the damping member 122 moves from the first position to the second position along the direction of the axis C-C of the main body 100, and the rotational damping between the first rotating member 130 and the second rotating member 140 is released. Thus, the first rotating member 130 returns to the first initial position under the action of the second reset member. During this process, the catheter 20 will be driven by the first control wire 30 to return to the initial state faster. When such a control handle 10 is unlocked, not only does the elastic force generated by the deformation of the catheter 20 itself cause the catheter 20 to reset, but also under the action of the second reset member, the first rotating member 130 can also drive the catheter 20 to reset. Therefore, the reset of the catheter 20 after the control handle 10 is unlocked can be faster.

[0057] Similarly, the second rotating member 140 may have a second initial position corresponding to the initial state of the catheter 20. A third reset member (not shown in the figure) may be provided on the main body 100. The third reset member may be connected to the second rotating member 140 and may apply a force to the second rotating member 140 to keep the second rotating member 140 in the second initial position. The third reset member may be a torsion spring or any other suitable form. Due to the provision of the third reset member, when the operating member 121 rotates from the first angular position to the second angular position around the axis C-C of the main body 100, the damping member 122 moves from the first position to the second position along the direction of the axis C-C of the main body 100, and the rotational damping between the first rotating member 130 and the second rotating member 140 is released. Thus, the second rotating member 140 returns to the second initial position under the action of the third reset member. During this process, the catheter 20 will be driven by the second control wire 40 to return to the initial state faster. When such a control handle 10 is unlocked, not only does the elastic force generated by the deformation of the catheter 20 itself cause the catheter 20 to reset, but also under the action of the third reset member, the second rotating member 140 can also drive the catheter 20 to reset. Therefore, the reset of the catheter 20 after the control handle 10 is unlocked can be faster.

[0058] Exemplarily, refer to Figure 2 、 Figure 3 and Figure 4, the first rotating member 130 can be used to drive the head end of the catheter 20 to move in the first plane through the first control wire 30, and the second rotating member 140 can be used to drive the head end of the catheter 20 to move in the second plane through the second control wire 40. The force exerted on the first rotating member 130 by the elastic force generated by the deformation of the catheter 20 and transmitted through the first control wire 30 can be less than the damping force exerted on the first rotating member 130 by the rotational damping, and the force exerted on the second rotating member 140 by the elastic force generated by the deformation of the catheter 20 and transmitted through the second control wire 40 can be less than the damping force exerted on the second rotating member 140 by the rotational damping. This can ensure that when there is rotational damping between the first rotating member 130 and the second rotating member 140, the catheter 20 will not return to its original position under the action of its own elastic force, thereby ensuring the stability of the control handle 10 when locking the position of the head end of the catheter 20.

[0059] In an embodiment of the present invention, refer to Figure 1 、 Figure 3 、 Figure 6 and Figure 7, a plurality of marking portions 1213 may be circumferentially provided on the operating member 121, and the plurality of marking portions 1213 may be used to prompt the operator of the angular position of the operating member 121. A prompting position (at the illustrated position P) may be provided on the main body 100, and the prompting position P may be a groove, a recessed point, a protrusion or various other forms. The plurality of marking portions 1213 may be respectively designed in various different forms, and according to the relative positional relationship between the plurality of marking portions 1213 and the prompting position P, the angular position of the operating member 121 may be prompted to the operator, whereby the magnitude of the rotational damping between the first rotating member 130 and the second rotating member 140 may be judged. The plurality of marking portions 1213 may also have the same form, and according to the number of the marking portions 1213 on both sides of the prompting position P, the angular position of the operating member 121 can also be realized to be prompted to the operator. Exemplarily, the marking portion 1213 may be a strip-shaped groove, or may be a recessed point, a protrusion or various other forms, and such a marking portion 1213 may have an anti-slip function. The prompting position P on the main body 100 may be the position where the thumb is placed when the operator holds it. Of course, the prompting position P may also be provided at any suitable position on the main body 100. The setting of the plurality of marking portions 1213 can prompt the operator of the angular position of the operating member 121, so as to facilitate the operator to judge the magnitude of the rotational damping between the first rotating member 130 and the second rotating member 140, and moreover, the plurality of marking portions 1213 can facilitate the operator to rotate the operating member 121, and such a control handle 10 is more convenient to use. It should be noted that there may be gaps between the plurality of marking portions 1213. When the operator rotates the operating member 121, the prompting position P may correspond to at least a part of the plurality of marking portions 1213 (for example, on the same axis), or may not correspond to any of the plurality of marking portions 1213, that is, the prompting position P corresponds to the gap between the marking portions 1213, and at this time, there may be a certain angular deviation from the marking portions 1213.

[0060] Exemplarily, referring to Figure 1 , Figure 3 , Figure 6 and Figure 7, the operating member 121 is rotatable about the axis C-C of the main body 100 within a first rotation interval between a first angular position and a second angular position and within a second rotation interval adjacent to the first rotation interval. Both the first rotation interval and the second rotation interval can be a rotation range of the operating member 121. The fact that the second rotation interval is adjacent to the first rotation interval means that the second rotation interval is located outside the first rotation interval. The second rotation interval can be adjacent to the first angular position. When the operating member 121 rotates from the second angular position to the first angular position, the operating member 121 actually rotates within the first rotation interval. At this time, the damping member 122 moves from the second position to the first position, and the surface of the damping member 122 facing the first connecting member 132 gradually presses against the first connecting member 132, and the first connecting member 132 gradually presses against the second connecting member 142, so that the resistance to relative rotation between the first rotating member 130 and the second rotating member 140 gradually increases. That is to say, within the first rotation interval, the rotation of the operating member 121 can cause the damping member 122 to gradually move from the second position to the first position, thereby adjusting the resistance to relative rotation between the first rotating member 130 and the second rotating member 140.

[0061] The plurality of marking portions 1213 may include a plurality of different first marking portions 1213a and a plurality of identical second marking portions 1213b. When the operating member 121 rotates, the prompting position P on the main body 100 can be considered stationary. When the operating member 121 is within the first rotation range, at least a part of the plurality of first marking portions 1213a can correspond to the prompting position P on the main body 100. Since the plurality of first marking portions 1213a are different from each other, the angular position of the operating member 121 can be determined according to the form of the first marking portion 1213a corresponding to the prompting position P. For example, the first marking portion 1213a may have different lengths along the axial direction of the main body 100. When the operating member 121 is at different angular positions, different first marking portions 1213a will correspond to the prompting position P, so that a prompt of the angular position of the operating member 121 can be obtained. After the operating member 121 rotates to the first angular position, a rotational damping is formed between the first rotating member 130 and the second rotating member 140. The rotational damping is equivalent to a relatively large resistance to the relative rotation between the first rotating member 130 and the second rotating member 140. Subsequently, when the operating member 121 continues to rotate, the operating member 121 will rotate within the second rotation range. The first position of the damping member 122 can correspond to a position range. When the damping member 122 is within this position range, there is a sufficiently large rotational damping between the first rotating member 130 and the second rotating member 140. As long as the damping member 122 is within this position range, it can be considered that the damping member 122 is in the first position. When the operating member 121 is within the second rotation range, the damping member 122 can be within the position range corresponding to the first position. When the operating member 121 continues to rotate away from the first angular position within the second rotation range and the damping member 122 is within the position range corresponding to the first position, the damping member 122 will continue to press against the first rotating member 130 under the drive of the operating member 121, so that the rotational damping between the first rotating member 130 and the second rotating member 140 is further increased. This can further prevent the creep and rebound of the catheter 20. When the operating member 121 is within the second rotation range, the second marking portion 1213b can correspond to the prompting position P on the main body 100. Since the damping member 122 is in the first position when the operating member 121 is within the second rotation range and there is already a rotational damping sufficient to lock the head end of the catheter 20 between the first rotating member 130 and the second rotating member 140, the plurality of second marking portions 1213b can be identical to each other. The plurality of identical second marking portions 1213b only need to prompt the operator of the range of the second rotation range of the operating member 121. When the operating member 121 is within the first rotation range, the surface of the operating member 121 in contact with the damping member 122 can be helically or obliquely extended around the axis of the main body 100. When the operating member 121 is within the second rotation range, the surface of the operating member 121 in contact with the damping member 122 can be perpendicular to the axis of the main body 100.The arrangement of multiple different first marking portions 1213a and multiple identical second marking portions 1213b can more clearly prompt the operator of the angular position of the operating member 121, so that the operator can use the control handle 10 more conveniently.

[0062] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front", "rear", "upper", "lower", "left", "right", "lateral", "vertical", "perpendicular", "horizontal" and "top", "bottom", etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Without contrary explanation, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present invention; the orientation terms "inside" and "outside" refer to the inside and outside of the contour of each component itself.

[0063] For the sake of convenience of description, regional relative terms such as "above...", "above...", "on the upper surface of...", "above" etc. can be used here to describe the regional positional relationship between one or more components or features shown in the drawings and other components or features. It should be understood that the regional relative terms not only include the orientation of the components described in the drawings, but also include different orientations during use or operation. For example, if the components in the drawings are inverted as a whole, then the component "above other components or features" or "above other components or features" will include the situation where the component is "below other components or structures" or "below other components or structures". Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". In addition, these components or features can also be positioned at other different angles (for example, rotated 90 degrees or other angles), and this article is intended to include all such situations.

[0064] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, components, assemblies and / or combinations thereof.

[0065] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present invention are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here.

[0066] The present utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for the purposes of illustration and example, and are not intended to limit the present utility model to the scope of the described embodiments. In addition, those skilled in the art can understand that the present utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present utility model, and these variations and modifications all fall within the scope of protection required by the present utility model. The scope of protection of the present utility model is defined by the appended claims and their equivalent scope.

Claims

1. A control handle, the control handle is used to connect a catheter, characterized in that: The control handle comprises a main body, on which a damping adjustment assembly, a first rotating member and a second rotating member are arranged, the first rotating member and the second rotating member are both rotatable around the axis of the main body, the damping adjustment assembly comprises an operating member and a damping member, the operating member is rotatable around the axis of the main body between a first angular position and a second angular position, the damping member is movable between a first position and a second position along the direction of the axis of the main body, the operating member abuts against the damping member, Among them, when the operating member is located at the first angular position, the damping member is located at the first position, at which time the damping member abuts against the first rotating member to form rotational damping between the first rotating member and the second rotating member; when the operating member is located at the second angular position, the damping member is located at the second position, at which time the rotational damping is released.

2. The control handle according to claim 1, characterized in that: The main body is also provided with a first restoring member, which is connected to the operating member and applies a force to the operating member to keep the operating member at the first angular position.

3. The control handle according to claim 1, characterized in that: An elastic member is disposed on the main body, the elastic member abuts between the damping member and the first rotating member, and the elastic member applies an elastic force to the damping member to keep the damping member at the second position.

4. The control handle according to claim 3, characterized in that: The main body is also provided with a first restoring member, which is connected to the operating member and applies a force to the operating member to keep the operating member at the first angular position, and the force is greater than the elastic force.

5. The control handle according to claim 1, characterized in that: The operating member includes a first mating surface extending spirally or obliquely around the axis of the main body, and the damping member includes a second mating surface extending spirally or obliquely around the axis of the main body, and the first mating surface abuts against the second mating surface.

6. The control handle according to claim 5, characterized in that: The first mating surface has a first mating end close to the first rotating member along the direction of the axis of the main body, and the second mating surface has a second mating end away from the first rotating member and a third mating end close to the first rotating member along the direction of the axis of the main body. Wherein, when the operating member is located at the first angular position, the first mating end abuts against the second mating end, so that the damping member is located at the first position; When the operating member is located at the second angular position, the first mating end abuts against the third mating end, so that the damping member is located at the second position.

7. The control handle according to claim 5, characterized in that: The operating member includes a plurality of the first matching surfaces, and the plurality of the first matching surfaces are arranged around the main body. The damping member includes a plurality of the second matching surfaces respectively corresponding to the plurality of the first matching surfaces.

8. The control handle according to claim 1, characterized in that: The first rotating member includes a first rotating sleeve and a first connecting member, the first rotating sleeve is connected to the first connecting member, the first connecting member is connected to the main body, the second rotating member includes a second rotating sleeve and a second connecting member, the second rotating sleeve is connected to the second connecting member, the second connecting member is connected to the main body, and a winding assembly is further provided on the main body, and the winding assembly is located between the first connecting member and the second connecting member. Wherein, when the operating member is located at the first angular position, the damping member is located at the first position, and at this time, the damping member abuts against the first connecting member to form rotational damping between the first connecting member, the winding assembly and the second connecting member.

9. The control handle according to claim 1, characterized in that: The first rotating member has a first initial position corresponding to the initial state of the catheter, and the main body is provided with a second restoring member, which is connected to the first rotating member and applies a force to the first rotating member to keep the first rotating member in the first initial position; And / or, the second rotating member has a second initial position corresponding to the initial state of the catheter, and a third resetting member is provided on the main body, which is connected to the second rotating member and applies a force to the second rotating member to keep the second rotating member in the second initial position.

10. The control handle according to claim 1, characterized in that: The first rotating member is used to drive the head end of the catheter to move in a first plane through a first control wire, and the second rotating member is used to drive the head end of the catheter to move in a second plane through a second control wire. The elastic force generated by the deformation of the catheter and transmitted to the first rotating member via the first control wire is less than the damping force of the rotational damping on the first rotating member, and the elastic force generated by the deformation of the catheter and transmitted to the second rotating member via the second control wire is less than the damping force of the rotational damping on the second rotating member.

11. The control handle according to claim 1, characterized in that: A plurality of marking parts are arranged on the operating member along the circumferential direction, and the plurality of marking parts are used to prompt the operator with the angular position of the operating member.

12. The control handle according to claim 11, characterized in that: The operating member is rotatable around the axis of the main body in a first rotation interval between the first angular position and the second angular position and in a second rotation interval adjacent to the first rotation interval, and the damping member is located at the first position when the operating member is located in the second rotation interval. The multiple marking parts include multiple different first marking parts and multiple identical second marking parts. When the operating part is located in the first rotation range, the first marking part corresponds to the prompt position on the main body. When the operating part is located in the second rotation range, the second marking part corresponds to the prompt position on the main body.

13. An ultrasonic catheter device, characterized in that: The invention comprises a catheter and a control handle according to any one of claims 1 to 12, wherein the catheter is connected to the control handle.

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