Control valve for flushing and absorbing ablation electrode

Abstract

The control valve comprises a valve body, a rotating portion and an operating portion, the valve body is provided with a plurality of connectors arranged at intervals, the connectors are communicated with a containing cavity of the valve body, the rotating portion is rotatably arranged in the containing cavity of the valve body, a fluid channel is arranged in the rotating portion, and the operating portion is communicated with the fluid channel. The fluid channel forms a first opening and a second opening in the surface of the rotating part, the first opening and the second opening correspond to the connector, the operating part is connected with the rotating part, and the operating part drives the rotating part to rotate, so that the first opening and the second opening are communicated with or staggered from the connector. According to the control valve of the flushing and sucking ablation electrode, the operation part can be shifted by a single hand to control on-off of fluid, and operation is convenient; in addition, a fluid control structure can be simplified, and assembly and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a control valve for aspiration and ablation electrodes. Background Technology

[0002] The suction-flushing ablation electrode is a commonly used electrode in active surgical instruments, characterized by high-efficiency ablation, safety and reliability, ease of operation, and multifunctionality. It consists of an electrode head, cable, and handle. It generates heat energy through high-frequency current to ablate tissue, and simultaneously uses suction to remove or rinse the ablated tissue, achieving the therapeutic effect. For example, patent CN113143452A discloses an ablation electrode device with suction-flushing functionality. When using the negative pressure suction function, the second suction channel is connected to the negative pressure suction tube, and pressing the trigger moves the push rod towards the first suction channel, compressing the fourth spring. One end of the push rod slides along the inclined surface of the second core, causing the second valve core to move towards the second suction channel. The third spring is compressed, the second sealing ring separates from the retaining ring, and the negative pressure suction tube connects to the blade tube, realizing the suction function. However, the above technical solution has a relatively complex structure and poor operational convenience. Utility Model Content

[0003] In order to solve the problems of the prior art, this utility model provides a control valve for the suction and ablation electrode that is easy for users to operate and identify, and effectively simplifies the implementation structure.

[0004] The specific technical solution is as follows: A control valve for aspiration and ablation electrodes includes a valve body, a rotating part, and an operating part. The valve body has several spaced-apart interfaces that communicate with the receiving cavity of the valve body. The rotating part is rotatably disposed in the receiving cavity of the valve body and has a fluid channel. The fluid channel forms a first opening and a second opening on the surface of the rotating part. The first opening and the second opening are corresponding to the interfaces. The operating part is connected to the rotating part and drives the rotating part to rotate, so that the first opening and the second opening are connected to or offset from the interfaces.

[0005] In some embodiments, the fluid channel includes a first channel and a second channel that are interconnected, with an included angle between the first channel and the second channel, and the first channel and the second channel are respectively connected to a first opening and a second opening.

[0006] In some embodiments, the valve body includes a first to a fourth interface, the first interface and the third interface being disposed opposite to each other, the second interface and the fourth interface being disposed opposite to each other, the first opening being movable between the first interface and the second interface, and the second opening being movable between the third interface and the fourth interface.

[0007] In some embodiments, the cross-section of the receiving cavity is circular, and the rotating part is cylindrical.

[0008] In some embodiments, the operating part has a limiting rod disposed in the limiting groove of the ablation electrode.

[0009] In some embodiments, the limiting groove is provided with a plurality of spaced slots, and the limiting rod is engaged in the slots.

[0010] In some embodiments, the limiting groove includes a first to a third slot, a second slot is located between the first and third slots, when the limiting rod is located in the second slot, the fluid channel and the interface are misaligned, and when the limiting rod is located in the first or third slot, the fluid channel and the interface are connected.

[0011] In some embodiments, the limiting rod is provided with a through hole, the through hole having an outward protrusion, and the outward protrusion being correspondingly provided with a slot.

[0012] In some embodiments, the operating part includes a connecting rod, which is disposed at both ends of the rotating part and located at the notch of the valve body.

[0013] In some embodiments, the interface is connected to a conduit.

[0014] The technical advantages of this invention are as follows: The control valve for the ablation electrode of this invention can control the flow of fluid by turning the operating part with one hand, which is convenient to operate; in addition, it can simplify the fluid control structure and facilitate assembly and maintenance. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a control valve for a suction and ablation electrode according to an embodiment of this utility model.

[0017] Figure 2 This is a schematic diagram of the valve body according to an embodiment of the present invention.

[0018] Figure 3 This is a cross-sectional view of a control valve for a suction and ablation electrode according to an embodiment of this utility model.

[0019] Figure 4 This is another schematic diagram of a control valve for a suction and ablation electrode according to an embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the rotating part of an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the ablation electrode according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the operating part of an embodiment of the present utility model. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0027] like Figures 1 to 7As shown, a control valve for a flushing and aspiration ablation electrode according to this embodiment includes a valve body 1, a rotating part 2, and an operating part 3. The valve body 1 has a plurality of spaced-apart interfaces 10, which communicate with a receiving cavity 15 of the valve body 1. The rotating part 2 is rotatably disposed in the receiving cavity 15 of the valve body, and a fluid channel 20 is provided in the rotating part 2. The fluid channel 20 forms a first opening 21 and a second opening 22 on the surface of the rotating part, which are correspondingly arranged with the interfaces 10. The operating part 3 is connected to the rotating part 2, and the operating part 3 drives the rotating part 2 to rotate, so that the first opening 21 and the second opening 22 communicate with or are offset from the interfaces 10. In the above technical solution, the control valve is used to control the flushing or aspiration of the flushing and aspiration ablation electrode. Flushing is performed by rinsing with a cleaning fluid, and aspiration is performed by a pneumatic pump. That is, the flushing and aspiration ablation electrode has at least two channels for the flow of liquid and air. Both channels are controlled by the control valve in this embodiment. The user rotates the rotating part 2 by toggling the operating part 3. When the first and second openings are connected to the two interfaces, the suction or flushing passage can be connected; when the first and second openings are misaligned with the interfaces, the fluid in the interfaces is blocked by the rotating part and cannot flow. Through the above technical solution, it is easy to control the flow of fluid and convenient to operate.

[0028] In this embodiment, the fluid channel 20 includes a first channel 201 and a second channel 202 that are interconnected. The first channel 201 and the second channel 202 have an included angle. The first and second channels are respectively connected to a first and a second opening. When the opening and the interface are connected, fluid flows into the first and second channels through the interface. In this embodiment, the first and second channels form a 120° angle, which reduces the distance between the interfaces and facilitates connection. The valve body 1 includes a first to a fourth interface, each of which is connected to a conduit for fluid delivery. The first interface 11 and the third interface 13 are arranged opposite each other, and the second interface 12 and the fourth interface 14 are arranged opposite each other. The first opening 21 moves between the first interface 11 and the second interface 12, and the second opening 22 moves between the third interface 13 and the fourth interface 14. When the first opening 21 is connected to the first interface 11, the second opening 22 is connected to the third interface 13, and the fluid channel is connected to the flushing channel. When the first opening is connected to the second interface 12, the second opening 22 is connected to the fourth interface 14, and the fluid channel 20 is connected to the suction channel. When the first opening 21 is located between the first and second interfaces, the second opening 22 is located between the third and fourth openings, and fluid cannot flow through at this time. The cross-section of the receiving cavity 15 is circular, and the rotating part 2 is cylindrical, thereby facilitating the rotation of the rotating part 2 within the receiving cavity 15.

[0029] In this embodiment, the operating unit 3 has a limiting rod 31, which is disposed in the limiting groove 4 of the suction and ablation electrode. The limiting groove 4 is located at the top for easy observation by the user. The limiting groove 4 has several spaced slots 40, in which the limiting rod 31 is engaged, thereby limiting its position. The limiting groove 4 includes a first to a third slot, namely a first slot 41, a second slot 42, and a third slot 43. The second slot 42 is located between the first and third slots. When the limiting rod 31 is in the second slot 42, the fluid channel and the interface are misaligned; when the limiting rod is in the first or third slot, the fluid channel and the interface are connected. This allows the user to easily identify the suction or flushing setting by observing the position of the limiting rod in different slots. The limiting rod 31 has a through hole 311 with an outward protrusion 312, which corresponds to the slot 40, allowing the protrusion 312 to deform and engage or disengage from the slot 40. The operating part 3 includes a connecting rod 32, which is located at both ends of the rotating part 2 and at the notch 16 of the valve body 1. The connecting rod 32 drives the rotating part 2 to rotate, while the notch 16 limits the rotation range of the connecting rod. The interface 10 is connected to the conduit 30, which is used to transport fluid.

[0030] The control valve for the ablation electrode in this embodiment can control the flow of fluid by moving the operating part with one hand, which is convenient to operate; in addition, it allows the user to identify the suction or flushing position by observing the position of the limit rod in different slots.

[0031] The control valve for the ablation electrode of this utility model has been described above. However, this utility model is not limited to the specific embodiments described above. Various modifications or alterations can be made without departing from the scope of the claims. This utility model includes various modifications and alterations within the scope of the claims.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A control valve for flushing and ablation electrodes, characterized in that, The device includes a valve body, a rotating part, and an operating part. The valve body has several spaced-apart interfaces that communicate with the receiving cavity of the valve body. The rotating part is rotatably disposed in the receiving cavity of the valve body and has a fluid channel. The fluid channel forms a first opening and a second opening on the surface of the rotating part. The first opening and the second opening are corresponding to the interfaces. The operating part is connected to the rotating part and drives the rotating part to rotate, so that the first opening and the second opening are connected to or offset from the interfaces.

2. The control valve for flushing and ablation of the electrode according to claim 1, characterized in that, The fluid channel includes a first channel and a second channel that are interconnected, with an angle between the first channel and the second channel, and the first channel and the second channel are respectively connected to the first and second openings.

3. The control valve for flushing and ablation of the electrode according to claim 2, characterized in that, The valve body includes a first to a fourth interface, with the first interface and the third interface being arranged opposite each other, the second interface and the fourth interface being arranged opposite each other, the first opening moving between the first interface and the second interface, and the second opening moving between the third interface and the fourth interface.

4. The control valve for flushing and ablation of the electrode according to claim 3, characterized in that, The cavity has a circular cross-section, and the rotating part is cylindrical.

5. The control valve for flushing and ablation of the electrode according to claim 4, characterized in that, The operating part has a limiting rod, which is set in the limiting groove of the ablation electrode.

6. The control valve for flushing and ablation of the electrode according to claim 5, characterized in that, The limiting groove is provided with several spaced slots, and the limiting rod is locked in the slots.

7. The control valve for flushing and ablation of the electrode according to claim 6, characterized in that, The limiting groove includes a first to a third slot, with a second slot located between the first and third slots. When the limiting rod is located in the second slot, the fluid channel and the interface are misaligned. When the limiting rod is located in the first or third slot, the fluid channel and the interface are connected.

8. The control valve for flushing and ablation of the electrode according to claim 7, characterized in that, The limiting rod is provided with a through hole, and the through hole has an outward protrusion, which is correspondingly set with the slot.

9. The control valve for flushing and ablation of the electrode according to claim 8, characterized in that, The operating part includes a connecting rod, which is disposed at both ends of the rotating part and located at the notch of the valve body.

10. The control valve for flushing and ablation of the electrode according to claim 1, characterized in that, The interface is connected to the conduit.

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