Trigger mechanism for multifunctional ablation electrode, ablation electrode with flushing and suction functions

Abstract

The present invention relates to the field of medical device technology, and specifically to a trigger mechanism for a multifunctional ablation electrode, and an ablation electrode with flushing and suction functions. The trigger mechanism includes: a flushing and suction sleeve composed of a flushing and suction inner tube and a suction telescopic tube that are slidably connected; an electrode; and a suction control wrench. The suction control wrench controls the activation of the suction function when closed. The suction control wrench is transmission-connected to the telescopic tube push block sleeved on the flushing pipeline, and the telescopic tube push block is detachably connected to the telescopic tube connecting block on the suction telescopic tube. When the suction control wrench triggers the suction action, the suction control wrench links the telescopic tube push block to move toward the telescopic tube connecting block, and is connected to the telescopic tube connecting block to push the suction telescopic tube out. By linking the suction control wrench to the action of the suction telescopic tube, the suction function can be activated without separately moving the suction telescopic tube to extend forward, effectively reducing the complexity of the operation for medical workers.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a trigger mechanism for a multifunctional ablation electrode, and an ablation electrode with flushing and suction functions. Background Art

[0002] Ablation electrodes are surgical devices used during surgery. Their primary functions include cutting, hemostasis, irrigation, and aspiration. They operate by applying a high-frequency current through the blade, generating a thermal effect that causes the blade to act on tissue, creating eschars or ruptures, thereby achieving coagulation or cutting.

[0003] The multifunctional high-frequency surgical electrode with irrigation and suction functions requires a hollow inner tube to create a suction channel. Furthermore, the ablation electrode with irrigation and suction functions requires an irrigation and suction telescopic tube that is sheathed around the inner tube.

[0004] In the prior art, currently available multifunctional ablation electrodes with irrigation and suction functions require medical personnel to operate a trigger mechanism to control the suction function when using the suction function. Furthermore, the telescopic trigger mechanism must be activated to control the forward extension of the irrigation and suction telescopic tube, thereby enabling the suction function of the ablation electrode. Therefore, when using the suction function of the prior art multifunctional ablation electrode, these two steps must be completed before the suction function of the ablation electrode can be activated. This makes the operation of the existing multifunctional ablation electrode complex and difficult to achieve a quick and effective suction function.

[0005] Therefore, those skilled in the art are in urgent need of a new trigger mechanism for a multifunctional ablation electrode, through which medical workers can achieve the following: they only need to operate the switch of the suction function device, and the flushing and suction telescopic tube will be synchronously extended to the specified position, thereby simplifying and reducing the doctor's operation and ensuring the convenience of equipment use. Summary of the Invention

[0006] The present invention provides a trigger mechanism for a multifunctional ablation electrode and an ablation electrode with flushing and suction functions, to solve the problem in the prior art that the suction telescopic tube cannot operate synchronously with the suction control wrench, resulting in poor convenience when medical workers operate the multifunctional ablation electrode. In order to solve the above problem, the technical solution of the present invention is: a trigger mechanism for a multifunctional ablation electrode, comprising:

[0007] The irrigation and suction sleeve comprises: an irrigation and suction inner tube, and a suction telescopic tube which is sleeved on the outer surface of the irrigation and suction inner tube and is slidably connected to the irrigation and suction inner tube;

[0008] The electrode is fixed on the irrigation and suction inner tube; the suction telescopic tube is driven to extend and retract, and when the suction telescopic tube is extended to the working position in front of the electrode, the ablation electrode performs the suction operation, and when the suction telescopic tube is retracted to the initial position behind the electrode, the ablation electrode performs the ablation and irrigation operations;

[0009] The suction control wrench controls the suction function of the ablation electrode when closed. The suction control wrench is transmission-connected to the telescopic tube pushing block sleeved on the flushing pipe through a first linkage mechanism, and the telescopic tube pushing block is detachably connected to the telescopic tube connecting block on the suction telescopic tube; when the suction control wrench triggers the suction action, the suction control wrench links the telescopic tube pushing block to move toward the telescopic tube connecting block through the first linkage mechanism, and is connected to the telescopic tube connecting block to push the suction telescopic tube out.

[0010] Optionally, the first linkage mechanism includes: a connecting rod provided on the suction control wrench, a sliding sleeve transmission-connected to the telescopic tube push block, and a fixed rotating shaft;

[0011] The connecting rod is pivotally connected to the fixed rotating shaft and is connected to the sliding sleeve to drive the sliding sleeve to rotate around the fixed rotating shaft; the sliding sleeve is also provided with a guide slot, and the connecting end of the telescopic tube pushing block is slidably provided in the guide slot to drive the telescopic tube pushing block to extend and retract through the sliding sleeve.

[0012] Optionally, the telescopic tube pushing block is an annular structure sleeved on the flushing pipe, and the telescopic tube connecting block is a sleeve structure sleeved on the flushing pipe and adapted to the telescopic tube pushing block;

[0013] An annular groove is provided on the outer periphery of the telescopic tube pushing block; a hook is provided on the telescopic tube connecting block, and a guide slope is provided on the side of the hook facing the annular groove to guide the telescopic tube pushing block to cooperate and engage with the telescopic tube connecting block.

[0014] Optionally, the trigger mechanism for the multifunctional ablation electrode further includes: a wrench self-locking mechanism for controlling the suction control wrench to maintain a closed state;

[0015] The wrench self-locking mechanism comprises:

[0016] A self-locking buckle, which is provided on the suction control wrench and has a Y-shaped structure with a contracted portion on a side close to the suction control wrench;

[0017] A limit spring is arranged on the moving path of the self-locking buckle; when the attraction control wrench is closed, the limit spring is engaged with the contraction portion to prevent the attraction control wrench from resetting, so that the attraction control wrench remains in a closed state; when the attraction control wrench is in a closed state and is pressed again, the limit spring unlocks the self-locking buckle.

[0018] The trigger mechanism for the multifunctional ablation electrode also includes: a suction line control mechanism, including:

[0019] a suction tube, connected to the flushing pipeline;

[0020] The suction valve control rod has one end connected to the suction control wrench and the other end extending into the pipe of the suction tube; the suction valve control rod is also provided with a first sealing portion for closing the suction tube, and the suction valve control rod is driven to extend and retract to respectively realize the conduction and closure of the suction pipeline.

[0021] The trigger mechanism for the multifunctional ablation electrode and the suction line control mechanism further include:

[0022] A first return spring is sleeved on the outside of the suction valve control rod; when the suction control wrench is closed, the first return spring is compressed and the suction valve control rod moves toward the suction tube to control the conduction of the suction tube through the first sealing part; when the suction control wrench is in a closed state and is pressed again, the limit spring unlocks the self-locking buckle, the first return spring drives the suction control wrench to reset, and the first sealing part resumes the closure of the suction tube.

[0023] Optionally, the first sealing portion is a sealing ring sleeved on the end of the suction valve control rod.

[0024] Optionally, the trigger mechanism for the multifunctional ablation electrode further includes: a flushing trigger mechanism, including:

[0025] an irrigation liquid supply tube, connected to the irrigation pipeline, and used for providing irrigation liquid to the ablation electrode;

[0026] The flushing valve control rod is arranged on the communication path between the flushing pipe and the flushing liquid supply pipe, and seals the two by a second sealing part; the flushing valve control rod is driven to move toward the extension direction of the flushing pipe to an extended position to open the flushing valve; and the flushing valve control rod is driven to move away from the connection position between the flushing pipe and the flushing liquid supply pipe to a reset position to close the flushing valve.

[0027] Optionally, the flush trigger mechanism also includes:

[0028] A self-locking mechanism is used to keep the flushing valve control rod in an extended position and the flushing valve in an open state; the self-locking mechanism includes: a connecting rod arranged on the flushing valve control rod, and a clamp arranged on the moving path of the connecting rod and adapted to the connecting rod; the clamp clamps and fixes the connecting rod to fix the flushing valve control rod.

[0029] Optionally, the flush trigger mechanism also includes:

[0030] a second return spring, sleeved on the flushing valve control rod;

[0031] When the flushing valve control rod is extended to open the flushing valve, the second return spring is compressed, and the flushing pipe and the flushing liquid supply pipe are connected;

[0032] When the flushing valve control rod is in the extended state, the self-locking mechanism unlocks the flushing valve control rod, the second return spring drives the flushing valve control rod to return to its original position, and the second sealing portion resumes closing the flushing liquid supply pipe.

[0033] Optionally, the trigger mechanism for the multifunctional ablation electrode further includes:

[0034] The ablation mechanism comprises a function switching button, wherein the function switching button is bent in one rotation direction to realize the electric cutting function, and is bent in another rotation direction to realize the electric coagulation function.

[0035] An ablation electrode with flushing and suction functions comprises: a trigger mechanism for the multifunctional ablation electrode; a flushing device, a suction device and an ablation device.

[0036] The technical solution of the present invention has the following advantages:

[0037] 1. The trigger mechanism for a multifunctional ablation electrode provided by the present invention comprises:

[0038] The irrigation and suction sleeve comprises: an irrigation and suction inner tube, and a suction telescopic tube which is sleeved on the outer surface of the irrigation and suction inner tube and is slidably connected to the irrigation and suction inner tube;

[0039] The electrode is fixed on the irrigation and suction inner tube; the suction telescopic tube is driven to extend and retract, and when the suction telescopic tube is extended to the working position in front of the electrode, the ablation electrode performs the suction operation, and when the suction telescopic tube is retracted to the initial position behind the electrode, the ablation electrode performs the ablation and irrigation operations;

[0040] The suction control wrench controls the suction function of the ablation electrode when closed. The suction control wrench is transmission-connected to the telescopic tube pushing block sleeved on the flushing pipe through a first linkage mechanism, and the telescopic tube pushing block is detachably connected to the telescopic tube connecting block on the suction telescopic tube; when the suction control wrench triggers the suction action, the suction control wrench links the telescopic tube pushing block to move toward the telescopic tube connecting block through the first linkage mechanism, and is connected to the telescopic tube connecting block to push the suction telescopic tube out.

[0041] In existing multifunctional ablation electrodes with irrigation and suction functions, when using the suction function, doctors must first operate the suction function device and then adjust the suction tube extension device to extend the suction tube forward, or adjust the suction tube first and then operate the suction function device. This makes it very complicated for medical workers to operate these ablation electrodes and activate the suction function.

[0042] In the present invention, the suction control wrench is connected to the telescopic tube push block mounted on the flushing pipe through a first linkage mechanism. A detachable clamping structure is provided to connect the telescopic tube push block to the suction telescopic tube. The above structure can effectively achieve: the suction control wrench is linked to the telescopic tube push block through the first linkage mechanism to move toward the telescopic tube connecting block, and is clamped and connected with the telescopic tube connecting block, thereby pushing the suction telescopic tube to extend. The telescopic action of the suction telescopic tube is then achieved by linking the suction control wrench. Through the present invention, when a doctor uses a multifunctional ablation electrode with flushing and suction functions for surgery, he only needs to operate the switch of the suction function device, and the above-mentioned suction telescopic tube will be extended to the position, simplifying and reducing the doctor's operation and saving the doctor's physical energy.

[0043] 2. The trigger mechanism for the multifunctional ablation electrode provided by the present invention, wherein the first linkage mechanism comprises: a connecting rod provided on the suction control wrench, a sliding sleeve transmission-connected to the telescopic tube push block, and a fixed rotating shaft;

[0044] The connecting rod is pivotally connected to the fixed rotating shaft and is connected to the sliding sleeve to drive the sliding sleeve to rotate around the fixed rotating shaft; the sliding sleeve is also provided with a guide slot, and the connecting end of the telescopic tube pushing block is slidably provided in the guide slot to drive the telescopic tube pushing block to extend and retract through the sliding sleeve.

[0045] In this invention, a connecting rod pivotally connected to a fixed shaft stably and reliably converts the movement of the suction control wrench into the horizontal sliding movement of a driving sliding sleeve along the flushing pipe. The sliding sleeve then drives the telescopic tube pusher block to engage the telescopic tube connecting block on the suction telescopic tube. The guide grooves on the driving sliding sleeve stably and reliably achieve the telescopic movement of the telescopic tube pusher block, resulting in a stable and reliable structure.

[0046] 3. In the trigger mechanism for the multifunctional ablation electrode provided by the present invention, the telescopic tube push block is an annular structure that is sleeved on the irrigation pipe, and the telescopic tube connecting block is a sleeve structure that is sleeved on the irrigation pipe and is compatible with the telescopic tube push block;

[0047] An annular groove is provided on the outer periphery of the telescopic tube pushing block; a hook is provided on the telescopic tube connecting block, and a guide slope is provided on the side of the hook facing the annular groove to guide the telescopic tube pushing block to cooperate and engage with the telescopic tube connecting block.

[0048] In the present invention, the telescopic tube pusher block and the telescopic tube connecting block are annular structures that are sleeved onto the flushing pipe, ensuring stable and reliable telescopic sliding. Furthermore, an annular groove on the outer periphery of the telescopic tube pusher block and a hook on the telescopic tube connecting block, guided by a guide ramp, ensure a stable and reliable clamping and fixing of the telescopic tube pusher block and the telescopic tube connecting block.

[0049] 4. The trigger mechanism for the multifunctional ablation electrode provided by the present invention further includes: a wrench self-locking mechanism for controlling the suction control wrench to maintain a closed state;

[0050] The wrench self-locking mechanism comprises:

[0051] A self-locking buckle, which is provided on the suction control wrench and has a Y-shaped structure with a contracted portion on a side close to the suction control wrench;

[0052] A limit spring is arranged on the moving path of the self-locking buckle; when the attraction control wrench is closed, the limit spring is engaged with the contraction portion to prevent the attraction control wrench from resetting, so that the attraction control wrench remains in a closed state; when the attraction control wrench is in a closed state and is pressed again, the limit spring unlocks the self-locking buckle.

[0053] The present invention also has a wrench self-locking mechanism for limiting the position of the suction control wrench. The wrench self-locking mechanism allows the operator to lock the position of the suction control wrench, so that medical workers do not have to hold the suction control wrench tightly all the time, effectively reducing the operator's grip fatigue.

[0054] 5. The trigger mechanism for the multifunctional ablation electrode provided by the present invention further includes: a suction line control mechanism, including:

[0055] a suction tube, connected to the flushing pipeline;

[0056] The suction valve control rod has one end connected to the suction control wrench and the other end extending into the pipe of the suction tube; the suction valve control rod is also provided with a first sealing portion for closing the suction tube, and the suction valve control rod is driven to extend and retract to respectively realize the conduction and closure of the suction pipeline.

[0057] In the present invention, the suction valve control rod can be effectively linked to the suction control wrench. When the suction control wrench is in the reset state, the suction valve control rod closes the pipeline channel of the suction tube. In addition, when the suction control wrench is in the grip state, the suction tube is opened to realize the suction function of the ablation electrode.

[0058] 6. The trigger mechanism for the multifunctional ablation electrode provided by the present invention, the suction pipeline control mechanism, also includes: a first return spring, which is sleeved on the outside of the suction valve control rod; when the suction control wrench is closed, the first return spring is compressed and the suction valve control rod moves toward the direction of the suction tube to control the conduction of the suction tube through the first sealing part; when the suction control wrench is in a closed state and is pressed again, the limit spring unlocks the self-locking buckle, the first return spring drives the suction control wrench to reset, and the first sealing part restores the closure of the suction tube.

[0059] In the present invention, a first return spring is sleeved around the suction valve control lever. This first return spring effectively compresses when the suction control lever is closed. When the self-locking buckle is unlocked, the first return spring releases its elastic force, driving the suction control lever back into position, thereby closing the suction tube with the first sealing portion of the suction valve control lever. This first return spring cleverly achieves automatic return of the suction valve control lever, offering the advantages of simple structure, compact size, and reliable stability.

[0060] 7. The trigger mechanism for the multifunctional ablation electrode provided by the present invention further includes: a flushing trigger mechanism, specifically including:

[0061] an irrigation liquid supply tube, connected to the irrigation pipeline, and used for providing irrigation liquid to the ablation electrode;

[0062] The flushing valve control rod is arranged on the communication path between the flushing pipe and the flushing liquid supply pipe, and seals the two by a second sealing part; the flushing valve control rod is driven to move toward the extension direction of the flushing pipe to an extended position to open the flushing valve; and the flushing valve control rod is driven to move away from the connection position between the flushing pipe and the flushing liquid supply pipe to a reset position to close the flushing valve.

[0063] In the present invention, the flushing valve control rod is used to control the opening and closing of the connection node between the flushing pipeline and the flushing liquid supply pipe. The flushing valve control rod is driven by an operator or a control mechanism to extend and retract to realize the opening and closing of the flushing valve.

[0064] 8. The trigger mechanism and flushing trigger mechanism for the multifunctional ablation electrode provided by the present invention also include: a self-locking mechanism for keeping the flushing valve control rod in the extended position and the flushing valve in the open state; the self-locking mechanism includes: a connecting rod arranged on the flushing valve control rod, and a clamp arranged on the moving path of the connecting rod and adapted to the connecting rod; the clamp clamps and fixes the connecting rod to fix the flushing valve control rod.

[0065] In the present invention, the self-locking mechanism allows the flushing valve control rod to remain in the extended position and the flushing valve to remain open, thereby effectively ensuring that the ablation electrode is flushed. The operator does not need to continuously push the flushing valve control rod to keep the flushing valve open, effectively reducing the complexity of the operator's operation.

[0066] 9. The trigger mechanism and flushing trigger mechanism for the multifunctional ablation electrode provided by the present invention further include:

[0067] a second return spring, sleeved on the flushing valve control rod;

[0068] When the flushing valve control rod is extended to open the flushing valve, the second return spring is compressed, and the flushing pipe and the flushing liquid supply pipe are connected;

[0069] When the flushing valve control rod is in the extended state, the self-locking mechanism unlocks the flushing valve control rod, the second return spring drives the flushing valve control rod to return to its original position, and the second sealing portion resumes closing the flushing liquid supply pipe.

[0070] In the present invention, the second return spring compresses and stores compression energy when the flush valve control rod extends, opening the flush valve. When the self-locking mechanism unlocks the flush valve control rod, the second return spring releases its elastic force, driving the flush valve control rod back to its original position. This automatically resets the second sealing portion of the flush valve control rod, sealing the flushing liquid supply pipe.

[0071] 10. The ablation electrode with irrigation and suction functions provided by the present invention includes: a trigger mechanism for the multifunctional ablation electrode; and an irrigation device, a suction device, and an ablation device. The ablation electrode of the present invention includes the above-mentioned trigger mechanism and thus has all the advantages of the trigger mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0073] Figure 1 A schematic diagram of the internal structure of the ablation electrode with flushing and suction functions provided by the present invention;

[0074] Figure 2 This is an enlarged schematic diagram of the function triggering mechanism structure of the ablation electrode provided by the present invention;

[0075] Figure 3 A schematic diagram of the three-dimensional connection structure of the telescopic tube pushing block and the telescopic tube connecting block provided by the present invention;

[0076] Figure 4 A schematic diagram of the connection structure of the telescopic tube pushing block and the telescopic tube connecting block provided by the present invention;

[0077] Figure 5 A schematic diagram of the connection structure between the guide slot of the telescopic tube push block and the hook of the telescopic tube connecting block provided by the present invention;

[0078] Figure 6 A schematic diagram of the three-dimensional structure of the flushing trigger mechanism provided by the present invention;

[0079] Figure 7 This is a schematic diagram of the relative positions of the flushing and suction inner tube and the suction telescopic tube provided by the present invention.

[0080] Description of reference numerals:

[0081] 1-Flushing and suction sleeve; 2-Flushing and suction inner tube; 3-Suction telescopic tube; 4-Electrode; 5-Suction control wrench; 6-Flushing pipeline; 7-Telescopic tube push block; 8-Telescopic tube connecting block; 9-Connecting rod; 10-Sliding sleeve; 11-Fixed rotating shaft; 12-Guide slide; 13-Hook; 14-Wrench self-locking mechanism; 15-Self-locking buckle; 16-Limiting spring; 17-Annular groove; 18-Suction tube; 19-Suction valve control rod; 20-First return spring; 21-First sealing part; 22-Flushing liquid supply pipe; 23-Flushing valve control rod; 24-Second sealing part; 25-Self-locking mechanism; 26-Connecting rod; 27-Clamp; 28-Second return spring; 29-Function switching button. DETAILED DESCRIPTION

[0082] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0083] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0084] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0085] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0086] Example 1

[0087] See Figure 1 and Figure 2 , Figure 1A schematic diagram of the internal structure of an ablation electrode with flushing and suction functions in an embodiment of the present invention is shown. Figure 2 A schematic diagram of the enlarged structure of the function triggering mechanism of the ablation electrode in an embodiment of the present invention is shown.

[0088] This embodiment provides a trigger mechanism for a multifunctional ablation electrode, comprising:

[0089] Flush the suction cannula 1, such as Figure 7 As shown, it comprises: an irrigation and suction inner tube 2, and a suction telescopic tube 3 which is sleeved on the outer surface of the irrigation and suction inner tube 2 and is slidably connected to the irrigation and suction inner tube 2;

[0090] The electrode 4 is fixed on the inner irrigation and suction tube 2; the suction telescopic tube 3 is driven to extend and retract, and when the suction telescopic tube 3 is extended to the working position in front of the electrode 4, the ablation electrode performs the suction operation, and when the suction telescopic tube 3 is retracted to the initial position behind the electrode 4, the ablation electrode performs the ablation and irrigation operations;

[0091] Suction control wrench 5, which controls the suction function of the ablation electrode to start when closed, and is connected to the telescopic tube pushing block 7 sleeved on the flushing pipe 6 through a first linkage mechanism, and the telescopic tube pushing block 7 is detachably connected to the telescopic tube connecting block 8 on the suction telescopic tube 3; when the suction control wrench 5 triggers the suction action, the suction control wrench 5 links the telescopic tube pushing block 7 to move toward the telescopic tube connecting block 8 through the first linkage mechanism, and is connected to the telescopic tube connecting block 8 to push the suction telescopic tube 3 out;

[0092] The suction pipe control mechanism includes: a suction pipe 18 connected to the flushing pipe 6; a suction valve control rod 19, one end of which is connected to the suction control wrench 5 and the other end extends into the suction pipe 18; the suction valve control rod 19 is also provided with a first sealing portion 21 for closing the suction pipe 18. The suction valve control rod 19 is driven to extend and retract to respectively realize the conduction and closure of the suction pipe;

[0093] The flushing trigger mechanism includes: a flushing liquid supply tube 22, which is connected to the flushing pipeline 6 and is used to provide flushing liquid to the ablation electrode; a flushing valve control rod 23, which is arranged on the communication path between the flushing pipeline 6 and the flushing liquid supply tube 22 and seals the two via a second sealing portion 24; the flushing valve control rod 23 is driven to move toward the extension direction of the flushing pipeline 6 to move to an extended position to open the flushing valve; and the flushing valve control rod 23 is driven to move away from the connection position between the flushing pipeline 6 and the flushing liquid supply tube 22 to move to a reset position to close the flushing valve.

[0094] The ablation mechanism includes a function switching button 29 , which is moved in one rotation direction to realize the electric cutting function, and is moved in another rotation direction to realize the electric coagulation function.

[0095] In this embodiment, if Figures 3 to 5 The diagram shows the connection structure between the telescopic tube push block and the telescopic tube connecting block. The first linkage mechanism comprises a connecting rod 9 provided on the suction control wrench 5, a sliding sleeve 10 drivingly connected to the telescopic tube push block 7, and a fixed shaft 11. The connecting rod 9 is pivotally connected to the fixed shaft 11 and connected to the sliding sleeve 10 to drive the sliding sleeve 10 to rotate about the fixed shaft 11. The sliding sleeve 10 is also provided with a guide slot 12, into which the connecting end of the telescopic tube push block 7 slides, thereby driving the telescopic movement of the telescopic tube push block 7 through the sliding sleeve 10.

[0096] In this embodiment, if Figure 4 and Figure 5 , Figure 4 A schematic diagram of the connection structure of the telescopic tube pushing block and the telescopic tube connecting block in an embodiment of the present invention is shown. Figure 5 A schematic diagram of the connection structure between the guide slot of the telescopic tube pushing block and the hook of the telescopic tube connecting block in an embodiment of the present invention is shown.

[0097] In order to achieve a secure and reliable engagement and effective separation between the telescopic tube push block 7 and the telescopic tube connecting block 8, the telescopic tube push block 7 is an annular structure that is sleeved on the flushing pipe 6, and the telescopic tube connecting block 8 is a sleeve structure that is sleeved on the flushing pipe 6 and adapted to the telescopic tube push block 7; an annular groove 17 is provided on the outer periphery of the telescopic tube push block 7; and a hook 13 is provided on the telescopic tube connecting block 8, and a guide slope is provided on the side of the hook 13 facing the annular groove 17 to guide the engagement of the telescopic tube push block 7 and the telescopic tube connecting block 8.

[0098] In the present invention, in order to allow medical workers to not have to hold the suction control wrench 5 tightly all the time, the operator's grip fatigue is effectively reduced. Figure 2 As shown, the trigger mechanism of the multifunctional ablation electrode further includes: a wrench self-locking mechanism 14 for controlling the suction control wrench 5 to maintain a closed state;

[0099] The wrench self-locking mechanism 14 includes:

[0100] A self-locking buckle 15 is provided on the suction control wrench 5 and is a Y-shaped structure having a contracted portion on one side close to the suction control wrench 5;

[0101] A limiting retaining spring 16 is arranged on the moving path of the self-locking buckle 15; when the attraction control wrench 5 is closed, the limiting retaining spring 16 is engaged with the contraction portion to prevent the attraction control wrench 5 from resetting, so that the attraction control wrench 5 remains in a closed state; when the attraction control wrench 5 is in a closed state and is pressed again, the limiting retaining spring 16 unlocks the self-locking buckle 15.

[0102] like Figure 2 As shown, in this embodiment, to achieve automatic closure of the suction tube 18, the suction pipeline control mechanism further includes a first return spring 20, which is sleeved on the outside of the suction valve control rod 19. When the suction control wrench 5 is closed, the first return spring 20 compresses, causing the suction valve control rod 19 to move toward the suction tube 18, thereby controlling the flow of the suction tube 18 through a first sealing portion 21. The first sealing portion 21 is a sealing ring sleeved on the end of the suction valve control rod 19. When the suction control wrench 5 is in the closed state and pressed again, the limit spring 16 unlocks the self-locking buckle 15, the first return spring 20 drives the suction control wrench 5 to reset, and the first sealing portion 21 resumes closing the suction tube 18.

[0103] In order to realize the position locking of the suction control wrench 5 by the operator, the medical worker does not have to hold the suction control wrench 5 tightly all the time, which effectively reduces the operator's grip fatigue. Figure 6 As shown, the flushing trigger mechanism also includes:

[0104] The self-locking mechanism 25 is used to keep the flushing valve control rod 23 in the extended position and the flushing valve in the open state; the self-locking mechanism 25 includes: a connecting rod 26 arranged on the flushing valve control rod 23, and a clamp 27 arranged on the moving path of the connecting rod 26 and adapted to the connecting rod 26; the clamp 27 clamps and fixes the connecting rod 26 to fix the flushing valve control rod 23.

[0105] In addition, in order to realize the automatic reset of the second sealing portion 24 of the flushing valve control rod 23, the flushing liquid supply pipe 22 is sealed. Figure 6 As shown, the flushing trigger mechanism also includes:

[0106] A second return spring 28 is sleeved on the flushing valve control rod 23;

[0107] When the flushing valve control rod 23 is extended to open the flushing valve, the second return spring 28 is compressed, and the flushing pipe 6 and the flushing liquid supply pipe 22 are connected;

[0108] When the flushing valve control rod 23 is in the extended state, the self-locking mechanism 25 unlocks the flushing valve control rod 23 , the second reset spring 28 drives the flushing valve control rod 23 to reset, and the second sealing portion 24 resumes closing the flushing liquid supply pipe 22 .

[0109] Of course, the specific structure of the first linkage mechanism is not specifically limited in this embodiment. In other embodiments, the first linkage mechanism can also be an electronically controlled mechanism. When the suction control wrench 5 is grasped, it sends a control signal to the first linkage mechanism, which then controls the telescopic tube push block 7 to extend and retract, thereby driving the telescopic tube push block 7 toward the telescopic tube connecting block 8 and engaging with the telescopic tube connecting block 8, thereby pushing the suction telescopic tube 3 out.

[0110] Of course, in this embodiment, there is no specific limitation on the clamping method of the telescopic tube pushing block 7 and the telescopic tube connecting block 8. In other embodiments, the telescopic tube pushing block 7 and the telescopic tube connecting block 8 can also be connected by other clamping structures, such as mutually adapted claws respectively provided on the telescopic tube pushing block 7 and the telescopic tube connecting block 8.

[0111] Of course, in this embodiment, the specific structure of the wrench self-locking mechanism 14 is not specifically limited. In other embodiments, the wrench self-locking mechanism 14 can also be a matching hook and buckle structure. When the attraction control wrench 5 is closed, the hook is locked into the buckle to prevent the attraction control wrench 5 from resetting, so that the attraction control wrench 5 remains in a closed state; when the attraction control wrench 5 is in a closed state and is pressed again, the buckle structure separates to achieve unlocking.

[0112] Of course, in this embodiment, the specific structure of the first return spring 20 and the second return spring 28 is not specifically limited. In other embodiments, the first return spring 20 and the second return spring 28 can be replaced by elastic rubber parts or electromagnetic devices to respectively realize the reset action of the suction control wrench 5 and the automatic reset of the flushing valve control rod 23.

[0113] Example 2

[0114] like Figure 1 The diagram shows the internal structure of the ablation electrode with flushing and suction functions.

[0115] An ablation electrode with flushing and suction functions comprises: a trigger mechanism for the multifunctional ablation electrode; a flushing device, a suction device and an ablation device.

[0116] A trigger mechanism for a multifunctional ablation electrode, comprising:

[0117] Flush the suction cannula 1, such as Figure 7As shown, it comprises: an irrigation and suction inner tube 2, and a suction telescopic tube 3 which is sleeved on the outer surface of the irrigation and suction inner tube 2 and is slidably connected to the irrigation and suction inner tube 2;

[0118] The electrode 4 is fixed on the inner irrigation and suction tube 2; the suction telescopic tube 3 is driven to extend and retract, and when the suction telescopic tube 3 is extended to the working position in front of the electrode 4, the ablation electrode performs the suction operation, and when the suction telescopic tube 3 is retracted to the initial position behind the electrode 4, the ablation electrode performs the ablation and irrigation operations;

[0119] Suction control wrench 5, which controls the suction function of the ablation electrode to start when closed, and is connected to the telescopic tube pushing block 7 sleeved on the flushing pipe 6 through a first linkage mechanism, and the telescopic tube pushing block 7 is detachably connected to the telescopic tube connecting block 8 on the suction telescopic tube 3; when the suction control wrench 5 triggers the suction action, the suction control wrench 5 links the telescopic tube pushing block 7 to move toward the telescopic tube connecting block 8 through the first linkage mechanism, and is connected to the telescopic tube connecting block 8 to push the suction telescopic tube 3 out;

[0120] The suction pipe control mechanism includes: a suction pipe 18 connected to the flushing pipe 6; a suction valve control rod 19, one end of which is connected to the suction control wrench 5 and the other end extends into the suction pipe 18; the suction valve control rod 19 is also provided with a first sealing portion 21 for closing the suction pipe 18. The suction valve control rod 19 is driven to extend and retract to respectively realize the conduction and closure of the suction pipe;

[0121] The flushing trigger mechanism includes: a flushing liquid supply tube 22, which is connected to the flushing pipeline 6 and is used to provide flushing liquid to the ablation electrode; a flushing valve control rod 23, which is arranged on the communication path between the flushing pipeline 6 and the flushing liquid supply tube 22 and seals the two via a second sealing portion 24; the flushing valve control rod 23 is driven to move toward the extension direction of the flushing pipeline 6 to move to an extended position to open the flushing valve; and the flushing valve control rod 23 is driven to move away from the connection position between the flushing pipeline 6 and the flushing liquid supply tube 22 to move to a reset position to close the flushing valve.

[0122] The ablation mechanism includes a function switching button 29 , which is moved in one rotation direction to realize the electric cutting function, and is moved in another rotation direction to realize the electric coagulation function.

[0123] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A trigger mechanism for a multifunctional ablation electrode, characterized in that: include: The flushing and suction sleeve (1) comprises: a flushing and suction inner tube (2), and a suction telescopic tube (3) sleeved on the outer surface of the flushing and suction inner tube (2) and slidably connected to the flushing and suction inner tube (2); The electrode (4) is fixed on the inner irrigation and suction tube (2); the suction telescopic tube (3) is driven to telescope, and when the suction telescopic tube (3) is extended to the working position in front of the electrode (4), the ablation electrode performs the suction operation, and when the suction telescopic tube (3) is retracted to the initial position behind the electrode (4), the ablation electrode performs the ablation and irrigation operations; A suction control wrench (5), wherein the suction control wrench (5) controls the activation of the suction function of the ablation electrode when closed, and the suction control wrench (5) is transmission-connected to a telescopic tube push block (7) sleeved on the flushing pipe (6) through a first linkage mechanism, and the telescopic tube push block (7) is detachably connected to the telescopic tube connecting block (8) on the suction telescopic tube (3); when the suction control wrench (5) triggers the suction action, the suction control wrench (5) links the telescopic tube push block (7) to move toward the telescopic tube connecting block (8) through the first linkage mechanism, and is connected to the telescopic tube connecting block (8) to push the suction telescopic tube (3) out; A wrench self-locking mechanism (14) is used to control the suction control wrench (5) to maintain a closed state; the wrench self-locking mechanism (14) comprises: a self-locking buckle (15), the self-locking buckle (15) is provided on the suction control wrench (5), and the self-locking buckle (15) is a Y-shaped structure with a contraction portion on a side close to the suction control wrench (5); a limiting clamping spring (16) is provided on the moving path of the self-locking buckle (15); when the suction control wrench (5) is closed, the limiting clamping spring (16) is engaged with the contraction portion to prevent the suction control wrench (5) from resetting, so that the suction control wrench (5) remains in a closed state; when the suction control wrench (5) is in a closed state and is pressed again, the limiting clamping spring (16) unlocks the self-locking buckle (15); A suction pipeline control mechanism comprises: a suction pipe (18) connected to the flushing pipe (6); a suction valve control rod (19) connected to the suction control wrench (5) at one end and extending into the pipe of the suction pipe (18) at the other end; a first sealing portion (21) for closing the suction pipe (18) is further provided on the suction valve control rod (19); the suction valve control rod (19) is driven to extend and retract, thereby realizing the conduction and closure of the suction pipeline respectively; When the suction control wrench (5) is closed, the suction valve control rod (19) moves toward the suction tube (18) to control the conduction of the suction tube (18) through the first sealing portion (21).

2. The trigger mechanism for a multifunctional ablation electrode according to claim 1, characterized in that: The first linkage mechanism comprises: a connecting rod (9) provided on the suction control wrench (5), a sliding sleeve (10) transmission-connected to the telescopic tube push block (7), and a fixed rotating shaft (11); The connecting rod (9) is pivotally connected to the fixed rotating shaft (11) and is connected to the sliding sleeve (10) to drive the sliding sleeve (10) to rotate around the fixed rotating shaft (11); the sliding sleeve (10) is also provided with a guide slot (12), and the connecting end of the telescopic tube push block (7) is slidably arranged in the guide slot (12) to drive the telescopic tube push block (7) to telescope through the sliding sleeve (10).

3. The trigger mechanism for a multifunctional ablation electrode according to claim 1, characterized in that: The telescopic tube push block (7) is an annular structure sleeved on the flushing pipe (6), and the telescopic tube connecting block (8) is a sleeve structure sleeved on the flushing pipe (6) and adapted to the telescopic tube push block (7); An annular groove (17) is provided on the outer periphery of the telescopic tube pushing block (7); a hook (13) is provided on the telescopic tube connecting block (8), and a guide slope for guiding the telescopic tube pushing block (7) to engage with the telescopic tube connecting block (8) is provided on the side of the hook (13) facing the annular groove (17).

4. The trigger mechanism for a multifunctional ablation electrode according to claim 1, characterized in that: The suction pipeline control mechanism further includes: A first return spring (20) is sleeved on the outside of the suction valve control rod (19); when the suction control wrench (5) is in a closed state and is pressed again, the limit spring (16) unlocks the self-locking buckle (15), the first return spring (20) drives the suction control wrench (5) to reset, and the first sealing part (21) resumes closing the suction tube (18).

5. The trigger mechanism for a multifunctional ablation electrode according to claim 1, characterized in that: The first sealing portion (21) is a sealing ring sleeved on the end of the suction valve control rod (19).

6. The trigger mechanism for a multifunctional ablation electrode according to claim 1, characterized in that: Also includes: Flush trigger mechanism, including: A flushing liquid supply tube (22), connected to the flushing pipeline (6), for providing flushing liquid to the ablation electrode; A flushing valve control rod (23) is arranged on a communication path between the flushing pipe (6) and the flushing liquid supply pipe (22), and seals the two via a second sealing portion (24); the flushing valve control rod (23) is driven to move toward an extension direction of the flushing pipe (6) to an extended position for opening the flushing valve; and the flushing valve control rod (23) is driven to move away from a connection position between the flushing pipe (6) and the flushing liquid supply pipe (22) to a reset position for closing the flushing valve.

7. The trigger mechanism for a multifunctional ablation electrode according to claim 6, characterized in that: The flushing trigger mechanism also includes: A self-locking mechanism (25) is used to keep the flushing valve control rod (23) in an extended position and the flushing valve in an open state; the self-locking mechanism (25) comprises: a connecting rod (26) arranged on the flushing valve control rod (23), and a clamp (27) arranged on a moving path of the connecting rod (26) and adapted to the connecting rod (26); the clamp (27) clamps and fixes the connecting rod (26) to fix the flushing valve control rod (23).

8. The trigger mechanism for a multifunctional ablation electrode according to claim 7, characterized in that: The flushing trigger mechanism also includes: a second return spring (28) sleeved on the flushing valve control rod (23); When the flushing valve control rod (23) is extended to open the flushing valve, the second return spring (28) is compressed, and the flushing pipe (6) and the flushing liquid supply pipe (22) are connected; When the flushing valve control rod (23) is in an extended state, the self-locking mechanism (25) unlocks the flushing valve control rod (23), the second return spring (28) drives the flushing valve control rod (23) to return, and the second sealing portion (24) resumes closing the flushing liquid supply pipe (22).

9. The trigger mechanism for a multifunctional ablation electrode according to claim 1, characterized in that: Also includes: The ablation mechanism comprises a function switching button (29), wherein the function switching button (29) is moved in one rotation direction to realize an electric cutting function, and is moved in another rotation direction to realize an electric coagulation function.

10. An ablation electrode with irrigation and suction functions, characterized in that: include: The trigger mechanism for a multifunctional ablation electrode according to any one of claims 1 to 4; as well as, Irrigation devices, suction devices, and ablation devices.

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