Plasma surgical device

Abstract

The application discloses a kind of plasma surgical device, comprising: shell, circuit component, sleeve assembly, round hole cutter head and straight hook cutter head.The shell defines cavity;Circuit component is located in the cavity;Sleeve assembly is connected with the cavity, at least part of sleeve assembly is located outside the shell;Round hole cutter head is provided in the sleeve assembly, and the round hole cutter head is electrically connected with the circuit component;Straight hook cutter head is movably provided in the sleeve assembly, and can extend or retract the sleeve assembly, and the straight hook cutter head is electrically connected with the circuit component.The plasma surgical device of the application can consider the function of round hole cutter head and straight hook cutter head, ablation and coagulation are carried out to large organization by round hole cutter head, and accurate cutting is carried out to organization by straight hook cutter head, to avoid doctor to replace cutter head in operation, to reduce the operation amount of doctor, and improve the safety of operation.

Description

Technical Field

[0001] This application relates to the field of plasma ablation equipment, and more particularly to a plasma surgical device. Background Technology

[0002] In arthroscopic sports medicine surgery, plasma ablation is used for the debridement of joint soft tissues and vascular coagulation. In existing technologies, radiofrequency plasma ablation tips include round-hole tips and hook-shaped tips. Round-hole tips are mainly used for large-area soft tissue ablation and cartilage surface debridement and shaping, while also addressing large-area coagulation. Hook-shaped tips are mainly used for high-precision surgical cutting to avoid damage to important blood vessels and nerves.

[0003] During the procedure, the surgeon needs to switch to either a round-hole or straight-hook blade as needed. However, changing blades during surgery is quite difficult, which increases the workload for the surgeon and reduces the safety of the procedure. Utility Model Content

[0004] The purpose of this application is to at least address the difficulty of changing surgical blades during surgery. This purpose is achieved through the following means:

[0005] This application discloses a plasma surgical device, comprising: a housing, a circuit assembly, a cannula assembly, a circular-hole blade, and a straight-hook blade. The housing defines a cavity; the circuit assembly is disposed within the cavity; the cannula assembly is connected to the cavity, with at least a portion of the cannula assembly located outside the housing; the circular-hole blade is disposed on the cannula assembly and electrically connected to the circuit assembly; the straight-hook blade is movably disposed on the cannula assembly and is capable of extending or retracting from the cannula assembly, and is electrically connected to the circuit assembly.

[0006] The plasma surgical device of this application retracts its straight hook tip and is housed within the cannula assembly upon entering the joint cavity, facilitating the insertion of the cannula assembly into the joint cavity. When larger tissues require ablation, the circular hole tip is energized via the circuit assembly, enabling ablation and coagulation of large tissues through this tip. When precise tissue cutting is required, the straight hook tip extends out of the cannula assembly, and is energized via the circuit assembly, enabling precise tissue cutting through this tip. This plasma surgical device combines the functions of both the circular hole tip and the straight hook tip, allowing for ablation and coagulation of large tissues through the circular hole tip and precise tissue cutting through the straight hook tip. This eliminates the need for surgeons to change tips during surgery, reducing workload and improving surgical safety.

[0007] In some embodiments, the device further includes a transmission mechanism and a first button. The transmission mechanism is disposed within the cavity, and the first button is movably disposed within the housing and connected to the straight hook cutter head via the transmission mechanism. When the first button is pressed, the transmission mechanism drives the straight hook cutter head to extend or retract from the sleeve assembly.

[0008] In some embodiments, the transmission mechanism includes a first moving member, a clutch assembly, and an abutment member. The straight hook cutter head is connected to the first moving member. The abutment member is disposed in the housing and located within the cavity. The first moving member is movably disposed within the cavity. The first moving member has an extended position and a retracted position relative to the abutment member. The first moving member in the extended position abuts against the abutment member in a first direction. The straight hook cutter head extends out of the sleeve assembly. When the first moving member in the retracted position separates from the abutment member in the first direction, the straight hook cutter head retracts into the sleeve assembly. The first moving member and the first button are both connected to the clutch assembly. When the first button is pressed, the clutch assembly is used to drive the first moving member in the extended position to move to the retracted position and to drive the first moving member in the retracted position to move to the extended position. The first direction is the length direction of the sleeve assembly.

[0009] In some embodiments, the first moving member is provided with a locking tooth and a relief groove. In the first direction, the end of the relief groove facing away from the straight hook head is open. In the first direction, the locking tooth is located on the side of the first moving member facing away from the straight hook head. When the first moving member is in the extended position, the locking tooth abuts against the abutting member. When the first moving member is in the retracted position, the abutting member is located in the relief groove.

[0010] In some embodiments, the clutch assembly includes a second moving member, a first elastic member, and a second elastic member. The second moving member is movably disposed within the cavity and has a first position and a second position. The first button is connected to the second moving member to drive the second moving member from the first position to the second position. The second moving member also has a through groove, which is open at one end near the first moving member. When the second moving member is in the first position, the abutment extends out of the through groove; when the second moving member is in the second position, the abutment retracts into the through groove.

[0011] One end of the first elastic element is connected to the housing, and the other end of the first elastic element abuts against the first moving element. The first elastic element is in a compressed deformation state. When the second moving element is in the second position, the first elastic element drives the first moving element in the extended position to move to the retracted position, or the first elastic element drives the first moving element in the retracted position to move to the extended position. One end of the second elastic element is connected to the second moving element, and the other end of the second elastic element is connected to the abutting element. The second elastic element is used to drive the second moving element to move from the second position to the first position.

[0012] In some embodiments, the first moving member is further provided with guide teeth, and the engaging teeth, the guide teeth, and the clearance groove are arranged sequentially in the circumferential direction of the first moving member.

[0013] In the circumferential direction of the first moving member, the engaging tooth has a first end near the clearance groove and a second end near the guide tooth. In the first direction, the second end is located on the side of the first end opposite to the second moving member.

[0014] In the circumferential direction of the first moving member, the guide tooth has a third end near the engaging tooth and a fourth end communicating with the clearance groove. In the first direction, the second end is located on the side of the third end opposite to the second moving member, and in the first direction, the fourth end is located on the side of the third end opposite to the second moving member.

[0015] The first moving part is rotatably disposed, and the second moving part is provided with connecting teeth. Part of the through groove is disposed on the connecting teeth, and the ends of the connecting teeth in the circumferential direction of the second moving part are spaced apart from the through grooves.

[0016] In some embodiments, the second moving member has a first abutting portion, which is located on the side of the second moving member opposite to the connecting teeth in the first direction. The first button is movably disposed in the second direction and has a second abutting portion.

[0017] The second abutment portion has an inclined guide end face. In the first direction, the guide end face has a fifth end close to the straight hook cutter head and a sixth end away from the straight hook cutter head. In the second direction, the fifth end is located on the side of the sixth end opposite to the first moving member.

[0018] The first abutting part is movably abutting against the guide end face. The first abutting part is used to move from the sixth end to the fifth end when the first button is pressed. The first direction and the second direction intersect.

[0019] In some embodiments, the round hole cutter head is connected to the circuit assembly via a first electrode wire, and the straight hook cutter head is connected to the circuit assembly via a second electrode wire. The first moving member includes a connecting component and a moving component. The moving component is provided with the locking teeth, the guide teeth, and the clearance groove. In the first direction, both the connecting component and the moving component are movably arranged. In the circumferential direction of the first moving component, the moving component is rotatably arranged. The connecting component is connected to the second electrode wire.

[0020] In some embodiments, the sleeve assembly includes an outer sleeve and a connecting sleeve. One end of the outer sleeve is located inside the cavity and connected to the housing, and the other end of the outer sleeve is located outside the cavity and connected to the connecting sleeve. The round hole cutter head is disposed on the connecting sleeve, and the straight hook cutter head is movably disposed on the connecting sleeve. The connecting sleeve is provided with a receiving groove, and the straight hook cutter head is located in the receiving groove when it retracts into the connecting sleeve.

[0021] In some embodiments, the circuit assembly includes a circuit board, a second button, and a third button, both of which are movably disposed on the housing and can be pressed. The round hole cutter head is electrically connected to the circuit board via the second button, and the straight hook cutter head is electrically connected to the circuit board via the third button. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0023] Figure 1 This is a schematic diagram of the plasma surgical device according to an embodiment of this application;

[0024] Figure 2 This is a half-sectional view of the plasma surgical device according to an embodiment of this application;

[0025] Figure 3 This is a schematic diagram showing some states of the transmission mechanism according to an embodiment of this application;

[0026] Figure 4 This is a schematic diagram showing some other states of the transmission mechanism according to an embodiment of this application;

[0027] Figure 5 This is a schematic diagram showing some other states of the transmission mechanism according to an embodiment of this application;

[0028] Figure 6 This is a schematic diagram showing some other states of the transmission mechanism according to an embodiment of this application;

[0029] Figure 7 This is a schematic diagram showing some other states of the transmission mechanism according to an embodiment of this application;

[0030] Figure 8 This is a schematic diagram showing some other states of the transmission mechanism according to an embodiment of this application;

[0031] Figure 9 This is a schematic diagram showing some other states of the transmission mechanism according to an embodiment of this application;

[0032] Figure 10 This is a schematic diagram showing some other states of the transmission mechanism according to an embodiment of this application;

[0033] Figure 11 This is a schematic diagram of the moving parts in an embodiment of this application;

[0034] Figure 12 This is a schematic diagram of the second moving component according to an embodiment of this application;

[0035] Figure 13 for Figure 2 Enlarged view of point A in the middle;

[0036] Figure 14 This is a schematic diagram of the straight hook cutter head retractable sleeve assembly according to an embodiment of this application;

[0037] Figure 15 This is a schematic diagram of the straight hook assembly extending from the sleeve assembly according to an embodiment of this application.

[0038] The labels in the attached diagram are as follows:

[0039] 100. Plasma surgical device;

[0040] 1. Shell; 11. Cavity;

[0041] 2. Circuit assembly; 21. Circuit board; 22. Second button; 23. Third button;

[0042] 3. Sleeve assembly; 31. Outer sleeve; 32. Connecting pipe; 321. Storage slot;

[0043] 4. Round hole cutter head; 41. First electrode wire;

[0044] 5. Straight hook cutter head; 51. Second electrode wire;

[0045] 6. Transmission mechanism; 61. First moving component; 611. Engaging tooth; 6111. First end; 6112. Second end; 612. Clearance groove; 613. Guide tooth; 6131. ​​Third end; 6132. Fourth end; 614. Connecting component; 615. Moving component; 62. Clutch assembly; 621. Second moving component; 6211. Connecting tooth; 6212. First abutment part; 6213. Through groove; 622. First elastic element; 623. Second elastic element; 63. Abutment member;

[0046] 7. First button; 71. Second abutting part; 711. Guide end face; 712. Fifth end; 713. Sixth end;

[0047] a) First direction; b) Second direction. Detailed Implementation

[0048] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0049] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0050] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure rotates, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0052] In the description of the application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In arthroscopic sports medicine surgery, plasma ablation is used for the debridement of joint soft tissues and vascular coagulation. In existing technologies, radiofrequency plasma ablation tips include round-hole tips and hook-shaped tips. Round-hole tips are mainly used for large-area soft tissue ablation and cartilage surface debridement and shaping, while also addressing large-area coagulation. Hook-shaped tips are mainly used for high-precision surgical cutting to avoid damage to important blood vessels and nerves.

[0055] During the procedure, the surgeon needs to switch to either a round-hole or straight-hook blade as needed. However, changing blades during surgery is quite difficult, which increases the workload for the surgeon and reduces the safety of the procedure.

[0056] To address the significant challenge of changing surgical tips during surgery, embodiments of this application propose a plasma surgical device 100 that integrates the functions of a round-hole surgical tip and a straight-hook surgical tip. This eliminates the need for surgeons to change surgical tips during surgery, thereby reducing the workload for surgeons and improving surgical safety.

[0057] The plasma surgical device 100 of this application, according to an embodiment of the accompanying drawings, is described below.

[0058] Combination Figure 1 , Figure 2 , Figure 14 and Figure 15 As shown, the plasma surgical device 100 of this application embodiment includes: a housing 1, a circuit assembly 2, a sheath assembly 3, a round-hole blade 4, and a straight hook blade 5. The housing 1 defines a cavity 11; the circuit assembly 2 is disposed within the cavity 11; the sheath assembly 3 is connected to the cavity 11, and at least a portion of the sheath assembly 3 is located outside the housing 1; the round-hole blade 4 is disposed on the sheath assembly 3 and is electrically connected to the circuit assembly 2; the straight hook blade 5 is movably disposed on the sheath assembly 3 and is capable of extending or retracting from the sheath assembly 3, and is electrically connected to the circuit assembly 2.

[0059] Upon entering the joint cavity, the straight hook tip 5 retracts and is housed within the cannula assembly 3, facilitating the insertion of the cannula assembly 3 into the joint cavity. When ablation of larger tissue is required, the circular hole tip 4 is energized via the circuit assembly 2, enabling ablation and coagulation of the large tissue through the circular hole tip 4. When precise tissue cutting is required, the straight hook tip 5 extends out of the cannula assembly 3, and the straight hook tip 5 is energized via the circuit assembly 2, enabling precise tissue cutting through the straight hook tip 5.

[0060] The plasma surgical device 100 of this embodiment can combine the functions of the round hole blade 4 and the straight hook blade 5. The round hole blade 4 is used to ablate and coagulate large tissues, while the straight hook blade 5 is used to precisely cut tissues, thus avoiding the need for doctors to change blades during surgery, thereby reducing the workload of doctors and improving the safety of surgery.

[0061] Combination Figure 1 , Figure 2 , Figure 14 and Figure 15 As shown, in some embodiments, the sleeve assembly 3 includes an outer sleeve 31 and a connecting tube 32. One end of the outer sleeve 31 is located inside the cavity 11 and connected to the housing 1, and the other end of the outer sleeve 31 is located outside the cavity 11 and connected to the connecting tube 32. A round hole cutter head 4 is disposed on the connecting tube 32, and a straight hook cutter head 5 is movably disposed on the connecting tube 32. The connecting tube 32 is provided with a receiving groove 321, and the straight hook cutter head 5 is located in the receiving groove 321 when it retracts into the connecting tube 32.

[0062] The outer sleeve 31 increases the distance between the connecting tube 32 and the housing, allowing the outer sleeve 31 to extend properly into the joint cavity. The straight hook cutter head 5 can be retracted into the storage groove 321, allowing it to be stored.

[0063] like Figure 2 As shown, in some embodiments, the device further includes a transmission mechanism 6 and a first button 7. The transmission mechanism 6 is disposed in the cavity 11, and the first button 7 is movably disposed in the housing 1 and connected to the straight hook cutter head 5 through the transmission mechanism 6. When the first button 7 is pressed, the transmission mechanism 6 drives the straight hook cutter head 5 to extend or retract the sleeve assembly 3.

[0064] Pressing the first button 7 can drive the transmission mechanism 6 to extend or retract the straight hook cutter head 5 into the sleeve assembly 3, thereby facilitating the control of the straight hook cutter head 5.

[0065] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, in some embodiments, the transmission mechanism 6 includes a first moving member 61, a clutch assembly 62, and an abutment member 63. The straight hook cutter head 5 is connected to the first moving member 61. The abutment member 63 is disposed in the housing 1 and located in the cavity 11. The first moving member 61 is movably disposed in the cavity 11. The first moving member 61 has an extended position and a retracted position relative to the abutment member 63. When the first moving member 61 is in the extended position, it abuts against the abutment member 63 in the first direction a. The straight hook cutter head 5 extends out of the sleeve assembly 3. When the first moving member 61 is in the retracted position and separates from the abutment member 63 in the first direction a, the straight hook cutter head 5 retracts into the sleeve assembly 3. The first moving member 61 and the first button 7 are both connected to the clutch assembly 62. When the first button 7 is pressed, the clutch assembly 62 is used to drive the first moving member 61 in the extended position to move to the retracted position and to drive the first moving member 61 in the retracted position to move to the extended position.

[0066] The first direction 'a' is the length direction of the sleeve assembly 3.

[0067] The first moving part 61 abuts against the abutting part 63 in the first direction a, which means that the first moving part 61 and the abutting part 63 have an abutting relationship in the first direction a. In other directions that are not parallel to the first direction a, the first moving part 61 may have a connection relationship with the abutting part 63. In other directions that are not parallel to the first direction a, the first moving part 61 may not have a connection relationship with the abutting part 63.

[0068] The separation of the first moving part 61 from the abutting part 63 in the first direction a means that the abutting between the first moving part 61 and the abutting part 63 in the first direction a is released. In other directions not parallel to the first direction a, the first moving part 61 may be connected to the abutting part 63. In other directions not parallel to the first direction a, the first moving part 61 may not be connected to the abutting part 63.

[0069] When the first button 7 is pressed, the first button 7 can drive the clutch assembly 62 to move, causing the clutch assembly 62 to drive the first moving member 61, which is in the extended position, to the retracted position, and then drive the first moving member 61, which is in the retracted position, to the extended position. Through the clutch assembly 62, the first moving member 61 can be alternately in the extended position and the retracted position.

[0070] For example, when the first moving part 61 is in the extended position, pressing the first button 7 will drive the first moving part 61 to the retracted position. Pressing the first button 7 again will drive the first moving part 61 to the extended position. Pressing the first button 7 again will drive the first moving part 61 to the retracted position.

[0071] For example, when the first moving part 61 is in the retracted position, pressing the first button 7 will drive the first moving part 61 to the extended position. Pressing the first button 7 again will drive the first moving part 61 to the retracted position. Pressing the first button 7 again will drive the first moving part 61 to the extended position.

[0072] Therefore, the first moving part 61, the clutch assembly 62 and the abutment part 63 can simplify the difficulty of the straight hook cutter head 5 extending out of the sleeve assembly 3 and retracting into the sleeve assembly 3, thereby simplifying the control difficulty of the movement of the straight hook cutter head 5.

[0073] Specifically, the abutment 63 is integrally formed with the housing 1 to simplify the production process.

[0074] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, in some embodiments, the first moving member 61 is provided with a locking tooth 611 and a relief groove 612. In the first direction a, the end of the relief groove 612 facing away from the straight hook head 5 is open. In the first direction a, the locking tooth 611 is located on the side of the first moving member 61 facing away from the straight hook head 5. When the first moving member 61 is in the extended position, the locking tooth 611 abuts against the abutting member 63. When the first moving member 61 is in the retracted position, the abutting member 63 is located in the relief groove 612.

[0075] The first moving member 61 abuts against the abutting member 63 by engaging with the locking teeth 611, thereby achieving abutment between the first moving member 61 and the abutting member 63 in the first direction a. By positioning the abutting member 63 within the clearance groove 612, the first moving member 61 separates from the abutting member 63 in the first direction a.

[0076] By using the snap-fit ​​teeth 611 and the clearance groove 612, the first moving part 61 can abut against the abutting part 63 in the first direction a, and the first moving part 61 can separate from the abutting part 63 in the first direction a, thus making the structure of the first moving part 61 simple and the distribution reasonable.

[0077] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, in some embodiments, the clutch assembly 62 includes a second moving member 621, a first elastic member 622, and a second elastic member 623. The second moving member 621 is movably disposed in the cavity 11 and has a first position and a second position. The first button 7 is connected to the second moving member 621 so as to drive the second moving member 621 to move from the first position to the second position. The second moving member 621 is also provided with a through groove 6213. The end of the through groove 6213 near the first moving member 61 is open. When the second moving member 621 is in the first position, the abutment member 63 extends out of the through groove 6213. When the second moving member 621 is in the second position, the abutment member 63 retracts into the through groove 6213.

[0078] One end of the first elastic member 622 is connected to the housing 1, and the other end of the first elastic member 622 abuts against the first moving member 61. The first elastic member 622 is in a compressed deformation state. When the second moving member 621 is in the second position, the first elastic member 622 drives the first moving member 61 in the extended position to move to the retracted position, or the first elastic member 622 drives the first moving member 61 in the retracted position to move to the extended position. One end of the second elastic member 623 is connected to the second moving member 621, and the other end of the second elastic member 623 is connected to the abutting member 63. The second elastic member 623 is used to drive the second moving member 621 from the second position to the first position.

[0079] Combination Figure 7 , Figure 8 , Figure 9 and Figure 3 As shown, when the first moving member 61 is in the extended position and the second moving member 621 is in the second position, the first elastic member 622 can drive the guide tooth 613 to abut against the connecting tooth 6211 and drive the guide tooth 613 to rotate from the fourth end 6132 to the third end 6131. ​​The second elastic member 623 can drive the second moving member 621 to move from the second position to the first position, so as to drive the second moving member 621 to separate from the first moving member 61 in the circumferential direction of the first moving member 61, thereby placing the first moving member 61 in the retracted position.

[0080] Combination Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, when the first moving member 61 is in the retracted position and the second moving member 621 is in the second position, the first elastic member 622 can drive the locking tooth 611 to abut against the connecting tooth 6211, and drive the locking tooth 611 to rotate from the second end 6112 to the first end 6111. The second elastic member 623 can drive the second moving member 621 to move from the second position to the first position, so as to drive the second moving member 621 to separate from the first moving member 61 in the circumferential direction of the first moving member 61, thereby so that the first moving member 61 is in the extended position.

[0081] The second moving member 621, the first elastic member 622, and the second elastic member 623 enable the first moving member 61, located in the extended position, to move to the retracted position when the first button 7 is pressed, and then drive the first moving member 61, located in the retracted position, to move to the extended position. The second moving member 621, the first elastic member 622, and the second elastic member 623 simplify the structure of the clutch assembly 62 and make its positional distribution more rational.

[0082] Specifically, both the first elastic element 622 and the second elastic element 623 are springs.

[0083] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, in some embodiments, the first moving member 61 is further provided with a guide tooth 613. In the circumferential direction of the first moving member 61, the engaging tooth 611, the guide tooth 613 and the clearance groove 612 are arranged in sequence.

[0084] In the circumferential direction of the first moving member 61, the engaging tooth 611 has a first end 6111 near the clearance groove 612 and a second end 6112 near the guide tooth 613. In the first direction a, the second end 6112 is located on the side of the first end 6111 that is away from the second moving member 621.

[0085] In the circumferential direction of the first moving member 61, the guide tooth 613 has a third end 6131 near the engaging tooth 611 and a fourth end 6132 communicating with the clearance groove 612. In the first direction a, the second end 6112 is located on the side of the third end 6131 away from the second moving member 621, and in the first direction a, the fourth end 6132 is located on the side of the third end 6131 away from the second moving member 621.

[0086] The first moving part 61 is rotatably mounted, and the second moving part 621 is provided with connecting teeth 6211. Part of the connecting teeth 6213 is provided in the connecting teeth 6211. The connecting teeth 6211 are spaced apart from the connecting teeth 6213 at the ends of the second moving part 621 in the circumferential direction.

[0087] Combination Figure 8 and Figure 9As shown, by positioning the fourth end 6132 on the side of the third end 6131 away from the second moving member 621, the abutment member 63 and the locking tooth 611 can be guided by the guide tooth 613, so that the abutment member 63 can enter the clearance groove 612 through the guide tooth 613.

[0088] Combination Figure 7 and Figure 11 As shown, by positioning the second end 6112 on the side of the first end 6111 away from the second moving member 621, and the fourth end 6132 on the side of the third end 6131 away from the second moving member 621, the abutment 63 can abut more firmly against the locking tooth 611.

[0089] Combination Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the second moving member 621 is in the second position. When the first moving member 61 moves from the retracted position to the abutting position, since the connecting teeth 6211 are spaced apart from the through grooves 6213 at their circumferential ends in the second moving member 621, the connecting teeth 6211 abut against the sidewalls of the guide teeth 613 in the circumferential direction of the second moving member 621. Under the action of the second elastic member 623, the second moving member 621 moves from the second position to the first position, so that the connecting teeth 6211 separate from the sidewalls of the guide teeth 613. After the connecting teeth 6211 separate from the sidewalls of the guide teeth 613, under the action of the first elastic member 622, the engaging teeth 611 and the abutting member 63 rotate, causing the first moving member 61 to rotate to the abutting position, and causing the abutting member 63 to abut against the sidewalls of the guide teeth 613, so that the connecting teeth 6211 abut against the guide teeth 613 in the first direction a.

[0090] By having connecting teeth 6211 spaced apart from the through grooves 6213 at the ends of the second moving member 621 in the circumferential direction, when the first moving member 61 is in the abutting position, the connecting teeth 6211 abut against the guide teeth 613 in the first direction a. This allows the guide teeth 613 to guide the connecting teeth 6211 and the abutting member 63 when the first button 7 is pressed again, thereby making the movement of the first moving member 61 and the second moving member 621 more precise.

[0091] Combination Figure 2 , Figure 8 , Figure 9 and Figure 3As shown, the second moving member 621 is in the second position. When the first moving member 61 moves from the abutting position to the retracted position, since the connecting teeth 6211 are spaced apart from the through grooves 6213 at their circumferential ends in the second moving member 621, the connecting teeth 6211 abut against the sidewalls of the locking teeth 611 in the circumferential direction of the second moving member 621. Under the action of the second elastic member 623, the second moving member 621 moves from the second position to the first position, so that the connecting teeth 6211 separate from the sidewalls of the locking teeth 611. After the connecting teeth 6211 separate from the sidewalls of the locking teeth 611, under the action of the first elastic member 622, the first moving member 61 rotates with the abutting member 63, causing the first moving member 61 to rotate to the retracted position, and causing the abutting member 63 to abut against the sidewalls of the locking teeth 611, so that the connecting teeth 6211 abut against the locking teeth 611 in the first direction a.

[0092] By having connecting teeth 6211 spaced apart from the through grooves 6213 at the ends of the second moving member 621 in the circumferential direction, when the first moving member 61 is in the retracted position, the connecting teeth 6211 abut against the locking teeth 611 in the first direction a. This allows the connecting teeth 6211 and the abutting member 63 to enter the locking teeth 611 and abut against the locking teeth 611 when the first button 7 is pressed again, thereby making the movement of the first moving member 61 and the second moving member 621 more precise.

[0093] Combination Figure 2 and Figure 11 As shown, in some embodiments, the second moving member 621 is provided with a first abutting part 6212. In the first direction a, the first abutting part 6212 is located on the side of the second moving member 621 away from the connecting tooth 6211. The first button 7 is movably disposed in the second direction b, and the first button 7 is provided with a second abutting part 71.

[0094] The second abutment portion 71 has an inclined guide end face 711. In the first direction a, the guide end face 711 has a fifth end 712 close to the straight hook cutter head 5 and a sixth end 713 away from the straight hook cutter head 5. In the second direction b, the fifth end 712 is located on the side of the sixth end 713 away from the first moving member 61.

[0095] The first abutting part 6212 is movably abutting against the guide end face 711. The first abutting part 6212 is used to move from the sixth end 713 to the fifth end 712 when the first button 7 is pressed. The first direction a and the second direction b intersect.

[0096] By having the second abutment portion 71 have an inclined guide end face 711, in the first direction a, the guide end face 711 has a fifth end 712 close to the straight hook cutter head 5 and a sixth end 713 away from the straight hook cutter head 5, and in the second direction b, the fifth end 712 is located on the side of the sixth end 713 opposite to the first moving member 61. Thus, the movement of the first button 7 along the second direction b is converted into the movement of the second moving member 621 along the first direction a.

[0097] The second direction b is the direction that intersects with the first direction a. It can be understood that the second direction b can be perpendicular to the first direction a. For example, when the first direction a is horizontal, the second direction b is vertical.

[0098] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, in some embodiments, the round hole cutter head 4 is connected to the circuit assembly 2 via the first electrode wire 41, and the straight hook cutter head 5 is connected to the circuit assembly 2 via the second electrode wire 51. The first moving member 61 includes a connecting member 614 and a moving member 615. The moving member 615 is provided with a locking tooth 611, a guide tooth 613, and a clearance groove 612. In the first direction a, both the connecting member 614 and the moving member 615 can be movably arranged. In the circumferential direction of the first moving member 61, the moving member 615 can be rotatably arranged. The connecting member 614 is connected to the second electrode wire 51.

[0099] The connecting component 614 can generate displacement in the first direction a, but the connecting component 614 cannot rotate. By connecting the connecting component 614 to the second electrode wire 51, the second electrode wire 51 can generate displacement in the first direction a, thereby driving the straight hook cutter head 5 to move, and preventing the second electrode wire from rotating, thus making the connection between the straight hook cutter head 5 and the circuit assembly 2 more stable.

[0100] Optionally, the connecting component 614 is provided with a slider, and the housing 1 is provided with a groove extending along the first direction a. The slider is slidably disposed in the groove. The groove and the slider can restrict the connecting component 614 to prevent the connecting component 614 from rotating. Moreover, the groove and the slider can guide the connecting component 614, making the movement of the connecting component 614 more precise.

[0101] like Figure 2As shown, in some embodiments, the circuit assembly 2 includes a circuit board 21, a second button 22 and a third button 23. The second button 22 and the third button 23 are movably disposed on the housing 1 and can be pressed. The round hole cutter head 4 is electrically connected to the circuit board 21 through the second button 22, and the straight hook cutter head 5 is electrically connected to the circuit board 21 through the third button 23.

[0102] The second button 22 can control the on / off of the electrical connection between the circuit board 21 and the round hole cutter head 4, thereby reducing the difficulty of opening and closing the round hole cutter head 4. The third button 23 can control the on / off of the electrical connection between the circuit board 21 and the straight hook cutter head 5, thereby reducing the difficulty of opening and closing the straight hook cutter head 5.

[0103] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A plasma surgical device, characterized in that, include: The shell defines the cavity; The circuit components are disposed within the cavity; A sleeve assembly connected to the cavity, with at least a portion of the sleeve assembly located outside the housing; A round hole cutter head is disposed on the sleeve assembly, and the round hole cutter head is electrically connected to the circuit assembly; A straight hook cutter head is movably disposed on the sleeve assembly and is capable of extending or retracting from the sleeve assembly. The straight hook cutter head is electrically connected to the circuit assembly.

2. The plasma surgical device according to claim 1, characterized in that, The plasma surgical device further includes a transmission mechanism and a first button. The transmission mechanism is located inside the cavity, and the first button is movably located in the housing and connected to the straight hook blade head through the transmission mechanism. When the first button is pressed, the transmission mechanism drives the straight hook blade head to extend or retract from the cannula assembly.

3. The plasma surgical device according to claim 2, characterized in that, The transmission mechanism includes a first moving component, a clutch assembly, and an abutment component. The straight hook cutter head is connected to the first moving component, and the abutment component is disposed in the housing and located within the cavity. The first moving member is movably disposed within the cavity. The first moving member has an extended position and a retracted position relative to the abutting member. When the first moving member is in the extended position, it abuts against the abutting member in a first direction, and the straight hook cutter head extends out of the sleeve assembly. When the first moving member is in the retracted position and separates from the abutting member in the first direction, the straight hook cutter head retracts into the sleeve assembly. Both the first moving component and the first button are connected to the clutch assembly. When the first button is pressed, the clutch assembly is used to drive the first moving component located in the extended position to the retracted position, and to drive the first moving component located in the retracted position to the extended position. The first direction is the length direction of the sleeve assembly.

4. The plasma surgical device according to claim 3, characterized in that, The first moving member is provided with a locking tooth and a relief groove. In the first direction, the end of the relief groove facing away from the straight hook head is open. In the first direction, the locking tooth is located on the side of the first moving member facing away from the straight hook head. When the first moving member is in the extended position, the locking tooth abuts against the abutting member. When the first moving member is in the retracted position, the abutting member is located in the relief groove.

5. The plasma surgical device according to claim 4, characterized in that, The clutch assembly includes a second moving member, a first elastic member, and a second elastic member. The second moving member is movably disposed within the cavity and has a first position and a second position. The first button is connected to the second moving member to drive the second moving member from the first position to the second position. The second moving member also has a through groove, which is open at one end near the first moving member. When the second moving member is in the first position, the abutment extends out of the through groove; when the second moving member is in the second position, the abutment retracts into the through groove. One end of the first elastic element is connected to the housing, and the other end of the first elastic element abuts against the first moving element. The first elastic element is in a compressed deformation state. When the second moving element is in the second position, the first elastic element drives the first moving element in the extended position to move to the retracted position, or the first elastic element drives the first moving element in the retracted position to move to the extended position. One end of the second elastic element is connected to the second moving element, and the other end of the second elastic element is connected to the abutting element. The second elastic element is used to drive the second moving element to move from the second position to the first position.

6. The plasma surgical device according to claim 5, characterized in that, The first moving component is further provided with guide teeth. In the circumferential direction of the first moving component, the engaging teeth, the guide teeth, and the clearance groove are arranged sequentially. In the circumferential direction of the first moving member, the engaging tooth has a first end near the clearance groove and a second end near the guide tooth. In the first direction, the second end is located on the side of the first end opposite to the second moving member. In the circumferential direction of the first moving member, the guide tooth has a third end near the engaging tooth and a fourth end communicating with the clearance groove. In the first direction, the second end is located on the side of the third end opposite to the second moving member, and in the first direction, the fourth end is located on the side of the third end opposite to the second moving member. The first moving part is rotatably disposed, and the second moving part is provided with connecting teeth. Part of the through groove is disposed on the connecting teeth, and the ends of the connecting teeth in the circumferential direction of the second moving part are spaced apart from the through grooves.

7. The plasma surgical device according to claim 6, characterized in that, The second moving member is provided with a first abutting portion. In the first direction, the first abutting portion is located on the side of the second moving member opposite to the connecting teeth. The first button is movable in the second direction and is provided with a second abutting portion. The second abutment portion has an inclined guide end face. In the first direction, the guide end face has a fifth end close to the straight hook cutter head and a sixth end away from the straight hook cutter head. In the second direction, the fifth end is located on the side of the sixth end opposite to the first moving member. The first abutting part is movably abutting against the guide end face. The first abutting part is used to move from the sixth end to the fifth end when the first button is pressed. The first direction and the second direction intersect.

8. The plasma surgical device according to claim 6, characterized in that, The round hole cutter head is connected to the circuit assembly via a first electrode wire, and the straight hook cutter head is connected to the circuit assembly via a second electrode wire. The first moving part includes a connecting part and a moving part. The moving part is provided with the locking teeth, the guide teeth, and the clearance groove. In the first direction, both the connecting part and the moving part can be movably arranged. In the circumferential direction of the first moving part, the moving part can be rotatably arranged. The connecting part is connected to the second electrode wire.

9. The plasma surgical device according to claim 1, characterized in that, The sleeve assembly includes an outer sleeve and a connecting tube. One end of the outer sleeve is located inside the cavity and connected to the housing. The other end of the outer sleeve is located outside the cavity and connected to the connecting tube. The round hole cutter head is disposed on the connecting tube. The straight hook cutter head is movably disposed on the connecting tube. The connecting tube is provided with a receiving groove. When the straight hook cutter head retracts into the connecting tube, it is located in the receiving groove.

10. The plasma surgical device according to claim 1, characterized in that, The circuit assembly includes a circuit board, a second button, and a third button. Both the second button and the third button are movably disposed on the housing and can be pressed. The round hole cutter head is electrically connected to the circuit board via the second button, and the straight hook cutter head is electrically connected to the circuit board via the third button.

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