Electrotome pen for nerve detection

Abstract

The invention provides an electrotome pen for nerve detection, which comprises an electrode mechanism (1) and a holder (2), the electrode mechanism (1) comprises an electrode stem (11) and an electrode tip (12) located at one end of the electrode stem (11); and the holding piece (2) is connected with one end, far away from the electrode tip (12), of the electrode rod (11). Wherein the electrotome pen has a first working state and a second working state, and in the first working state, the electrode mechanism (1) is electrically connected with high-frequency equipment, so that the electrode tip (12) can perform cutting or blood coagulation; and in the second working state, the electrode mechanism (1) is electrically connected with nerve detection equipment, and the electrode tip (12) is used for detecting nerve signals. According to the embodiment of the invention, the electrotome pen can be compatible with cutting, blood coagulation or nerve detection capabilities, the surgical operation difficulty is simplified, the surgical duration is shortened, and the high efficiency of surgical operation is improved.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to an electrosurgical pen for nerve detection. Background Technology

[0002] The electrocautery scalpel is a commonly used surgical device in surgery, capable of safe and efficient hemostasis and cutting. However, when performing surgery on areas with multiple nerve tissues (such as the larynx), it can easily cause accidental nerve damage in the surgical area, resulting in unnecessary harm to the patient.

[0003] Therefore, in practical use, surgeries in areas with multiple nerve tissues require probing around the surgical area to identify the location of nerves within the area, allowing the operator to avoid the nerve regions. Introducing this probing process necessitates the use of new probing devices, requiring operators to frequently change devices during surgery, increasing the difficulty of the procedure. Furthermore, the electrosurgical pen requires fine-tuning for the operating position under these specific working conditions.

[0004] In view of the above, this application is hereby submitted. Summary of the Invention

[0005] This application provides an electrosurgical pen for nerve detection to solve at least one of the above-mentioned technical problems.

[0006] This application provides an electrosurgical pen for nerve detection, including an electrode mechanism and a holder. The electrode mechanism includes an electrode rod and an electrode head located at one end of the electrode rod; the holder is connected to the end of the electrode rod away from the electrode head.

[0007] The electrosurgical pen has a first working state and a second working state. In the first working state, the electrode mechanism is electrically connected to a high-frequency device, enabling the electrode tip to cut or coagulate blood. In the second working state, the electrode mechanism is electrically connected to a nerve detection device, allowing the electrode tip to detect nerve signals. The electrode mechanism further includes a bending member located at the end of the electrode rod away from the holder.

[0008] By adopting the above structure and enabling the electrosurgical pen to have a first working state and a second working state, the electrosurgical pen can be compatible with cutting, coagulation, or nerve detection capabilities, thus making the electrosurgical pen easy to meet various usage needs. For example, when it is necessary to detect nerve areas, there is no need to change to a new operating device. Most of the work required in the surgical operation can be accomplished by the same device. At this time, the device also has a bending mechanism that can finely adjust the position, thereby simplifying the difficulty of surgical operation, reducing the operation time, and improving the efficiency of surgical operation.

[0009] In some alternative embodiments of this application, the holder includes a housing and a circuit board located inside the housing. In a first operating state, the circuit board is electrically connected to the electrode mechanism and the high-frequency device. In a second operating state, the circuit board is electrically connected to the electrode mechanism and the neural detection device.

[0010] With the above structure, on the one hand, by setting up the shell, a hand-held area can be provided for the operator to operate the electric knife pen, which is convenient for operation. It can also provide a relatively independent space within the shell, which is convenient for mounting a structure for adjusting the state between the first working state and the second working state. On the other hand, by setting up the circuit board, the electrical connection relationship on the circuit board can be adjusted to realize the control of the first working state and the second working state or the state switching between the first working state and the second working state.

[0011] In some optional embodiments of this application, the electrode rod includes a rod housing and a conductive rod disposed within the rod housing. One end of the conductive rod is connected to the electrode head, and the other end of the conductive rod is electrically connected to the circuit board 22. An external power supply controls the output of the electrode head through the conductive rod to achieve switching between different working states.

[0012] In some preferred embodiments, the electrode head housing includes a connector and a head component, the connector being fixedly connected to the head component, and the head component having a through hole to allow the electrode core to extend from the inside.

[0013] In some optional embodiments of this application, the bending member is sleeved on the outside of the conductive rod, and the end of the bending member away from the holder is connected to the electrode head, and the bending part can be bent in a direction perpendicular to the axial direction of the electrode rod.

[0014] In some optional embodiments of this application, the bending member includes a plurality of continuously arranged bending sub-members, each bending sub-member having a first contraction section and a second contraction section arranged opposite to each other along the length direction of the electrode rod, as well as a first connection position and a second connection position arranged opposite to each other. Preferably, the contraction section and the connection position have a smooth transition. In some embodiments, adjacent plurality of bending sub-members abut against each other through the first connection position and the second connection position, while a gap is formed at adjacent first contraction sections and second contraction sections to facilitate bending.

[0015] In some optional embodiments of this application, bending end members are respectively provided at both ends of the bending member, and the bending end members do not have a contraction section.

[0016] In some optional embodiments of this application, the bending sub-component is provided with a first through hole and a second through hole in its thickness direction, and a first connecting rod and a second connecting rod are passed through multiple bending sub-components and fixed to the bending end pieces at both ends.

[0017] In some optional embodiments of this application, the bending component further includes a third through hole 317 disposed at its center position in the thickness direction, the third through hole 317 being used to pass through a conductive rod.

[0018] In some optional embodiments of this application, the electrode rod further includes a movable sleeve located inside the rod housing, and the movable sleeve is disposed between the rod housing and the conductive rod. One end of the movable sleeve is connected to a drive plate, and the other end is located inside the holder. The movable sleeve is movable relative to the rod housing along the axial direction of the electrode rod.

[0019] By adopting the above structure, a movable sleeve is set between the rod shell and the conductive rod. One end of the movable sleeve is connected to the elastic electrode, and the other end of the movable sleeve is located inside the holder. The movable sleeve can move relative to the rod shell along the axial direction of the electrode rod. This allows for control of bending at the bending point while maintaining the rod-shaped structure of the electrode rod, reducing the difficulty of operating the electric drill and improving its working efficiency.

[0020] In some optional embodiments of this application, one end of the drive plate is fixedly connected to the movable rod sleeve, and the other end is fixedly connected to the electrode head housing, thereby transmitting the movement of the movable rod sleeve to the electrode head.

[0021] In some alternative embodiments of this application, the electrosurgical pen further includes a driving member disposed on the end of the holder near the electrode rod. The driving member is connected to a movable sleeve and is used to drive the movable sleeve to move axially along the electrode rod.

[0022] By adopting the above structure and setting a driving component, on the one hand, the operating structure on the electric drill can be concentrated at the holding part, which makes it convenient for the operator to operate around the holding part during operation, such as one-handed operation, which simplifies the operation of the electric drill and improves the operation efficiency of the electric drill. It also keeps the operating structure for bending the workpiece away from the electrode head, reduces structural interference at the electrode head, and improves the operation accuracy of the electrode head. On the other hand, the electric drill has a driving moving rod sleeve that can move along the axial direction of the electrode rod, which facilitates the control of the bending process of the workpiece.

[0023] In some optional embodiments of this application, the driving component includes a driving seat, a rotating component, and a connecting block. The driving seat is connected to the end of the holding component near the electrode rod. The driving seat includes a limiting ring groove. The rotating component is disposed in the limiting ring groove and can rotate relative to the driving seat. The limiting ring groove is used to restrict the rotating component from moving axially along the electrode rod. The connecting block is disposed in the receiving cavity of the rotating component and is threadedly connected to the rotating component. The connecting block is connected to the movable sleeve rod and can move axially relative to the rotating component along the electrode rod.

[0024] By adopting the above structure and setting up a drive base, a rotating component, and a connecting block, on the one hand, the rotation of the rotating component around the electrode rod can be converted into the axial movement of the connecting block along the electrode rod, thereby driving the moving rod sleeve to move along the axial direction of the electrode rod, thus realizing the bending control of the bending component; on the other hand, the part of the electric drill that moves along the axial direction of the electrode rod can be roughly located inside the electric drill, thereby reducing the change in the shape of the electric drill, reducing the impact of the related structure of adjusting the bending component on the actual operation of the electric drill, and facilitating the efficient operation of the electric drill.

[0025] In some optional embodiments of this application, the bending component further includes a fourth through hole, which is disposed on one side of the third through hole, and the driving piece passes through the fourth through hole.

[0026] In some optional embodiments of this application, the bending sub-component further includes a fifth through hole located near the first contraction section and the second contraction section, and the fifth through hole does not have any other through-holes.

[0027] Compared with related technologies, the electrosurgical pen for nerve detection in the embodiments of this application, by having the electrosurgical pen have a first working state and a second working state, can be compatible with cutting, coagulation or nerve detection capabilities, thereby making the electrosurgical pen easy to meet various usage needs. For example, when it is necessary to detect nerve areas, there is no need to replace the new operating device. Most of the work needs in the surgical operation can be achieved by the same device, simplifying the difficulty of surgical operation, reducing the operation time and improving the efficiency of surgical operation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the electric knife pen in one embodiment of this application.

[0030] Figure 2 This is a schematic diagram of the structure of the electric pen in another embodiment of this application.

[0031] Figure 3 yes Figure 2 A schematic diagram of the internal structure of one end of the intermediate electrode head.

[0032] Figure 4 yes Figure 2 A schematic diagram of the internal structure of one end of the middle support component.

[0033] Figure 5This is a three-dimensional schematic diagram of an electric drill according to one embodiment of this application.

[0034] Figure 6 This is a front view of the circuit board in one embodiment of this application.

[0035] Figure 7 This is a schematic diagram of the back of the circuit board according to one embodiment of this application.

[0036] Figure 8 This is an internal structural diagram of the electrode mechanism at the first angle in one embodiment of this application.

[0037] Figure 9 This is an internal structural diagram of the electrode mechanism at the second angle in one embodiment of this application.

[0038] Figure 10 This is a structural diagram of the bending component at the first angle in one embodiment of this application.

[0039] Figure 11 This is a structural diagram of the second angle of the bending component in one embodiment of this application.

[0040] Figure 12 This is an internal structural diagram of the drive component in one embodiment of this application.

[0041] In the attached image: 1. Electrode mechanism; 11. Electrode rod; 111. Rod shell; 1111. Insulating layer; 112. Conductive rod; 113. Moving rod sleeve; 114. Drive plate; 12. Electrode head; 121. Electrode head shell; 1211. Connector; 1212. Head assembly; 122. Electrode core; 2. Holding component; 21. Housing; 22. Circuit board; 23. Status button; 3. Bending component; 31. Bending sub-component; 311. First contraction section; 312. Second contraction section; 313. First connecting position; 314. Second connecting position; 315. First through hole; 316. Second through hole; 317. Third through hole; 318. Fourth through hole; 319. Fifth through hole; 32. Bending end component; 33. First connecting rod; 34. Second connecting rod; 4. Driving component; 41. Driving base; 411. Limiting ring groove; 42. Rotating component; 43. Connecting block; 44. Positioning component; 5. First connector; 6. Second connector; 811. Electrical cutter button solder joint; 812. Electrical coagulation button solder joint; 813. Nerve detection button solder joint; 814. Circuit connection contact point; 821. Control element; 822. Electrical cutter input solder joint; 823. Nerve detection signal output contact point; 824. Electrical coagulation input solder joint; 825. Brush. Detailed Implementation

[0042] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0044] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0045] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0046] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0047] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0048] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0049] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" 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 or an electrical connection; 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0050] like Figure 1 As shown, this application provides an electrosurgical pen for nerve detection, including an electrode mechanism 1 and a holder 2. The electrode mechanism 1 includes an electrode rod 11 and an electrode head 12 located at one end of the electrode rod 11; the holder 2 is connected to the end of the electrode rod 11 away from the electrode head 12.

[0051] The electrosurgical pen has a first working state and a second working state. In the first working state, the electrode mechanism 1 is electrically connected to the high-frequency device, enabling the electrode head 12 to perform cutting or coagulation. In the second working state, the electrode mechanism 1 is electrically connected to the nerve detection device, enabling the electrode head 12 to detect nerve signals.

[0052] Electrode mechanism 1 refers to the part of the electrosurgical pen that performs the electrode function, which may include an electrode head 12 that releases electrical energy for cutting or coagulation, and a rod-shaped structure for extending the electrode head 12 to create a certain distance between the electrode head 12 and the holder 2.

[0053] Holding component 2 refers to the structure on the electrosurgical pen that enables handheld operation, such as a cylindrical structure or a handle structure that is sleeved onto one end of the electrode rod 11. This application does not specifically limit the shape of the holding component 2.

[0054] By enabling the electrosurgical pen to have a first working state and a second working state, it is possible to integrate cutting, coagulation, or nerve detection capabilities, thus making the electrosurgical pen easy to meet various usage needs. For example, when it is necessary to detect nerve areas, there is no need to change to a new operating device. Most of the work needs in the surgical operation can be achieved through the same device, simplifying the difficulty of surgical operation, reducing the operation time, and improving the efficiency of surgical operation.

[0055] It is understandable that the switching between the first and second working states on the electric scalpel can be achieved by switching different circuits on the electric scalpel. For example, the electric scalpel has a first circuit and a second circuit. The first circuit corresponds to the first working state, and the second circuit corresponds to the second working state. When the first circuit is connected and the second circuit is disconnected, the electric scalpel is in the first working state. When the first circuit is disconnected and the second circuit is connected, the electric scalpel is in the second working state.

[0056] For example, the first working state may also have two sub-working states to correspond to cutting and coagulation. Furthermore, the specific settings of the two sub-working states can be configured according to the high-frequency device.

[0057] like Figure 2 and Figure 4 As shown, the holder 2 includes a housing 21 and a circuit board 22 located inside the housing 21. In the first working state, the circuit board 22 is electrically connected to the electrode mechanism 1 and the high-frequency device. In the second working state, the circuit board 22 is electrically connected to the electrode mechanism 1 and the nerve detection device.

[0058] Specifically, such as Figure 1 and Figure 2 As shown, in some optional embodiments of this application, the electric pen further includes a first connector 5 and a second connector 6. The first connector 5 is used to electrically connect the circuit board 22 to the high-frequency device, and the second connector 6 is used to electrically connect the circuit board 22 to the neural detection device.

[0059] By setting the first connector 5 and the second connector 6, it is possible to easily connect the electrosurgical pen to high-frequency equipment or neural detection equipment.

[0060] For example, the first connector 5 may be an electrode plug, and the second connector 6 may be a nerve detector connector.

[0061] On the one hand, by setting the housing 21, a handheld area can be provided for the operator to operate the electric knife pen, which is convenient for operation. It can also provide a relatively independent space within the housing 21, which is convenient for mounting a structure for adjusting the state between the first working state and the second working state. On the other hand, by setting the circuit board 22, the electrical connection relationship on the circuit board 22 can be adjusted to realize the control of the first working state and the second working state or the state switching between the first working state and the second working state.

[0062] For example, different circuits corresponding to the first working state and the second working state may be etched on the circuit board 22, and the switching between the first working state and the second working state can be realized by controlling the on and off of the different circuits.

[0063] For example, the circuit board 22 may have a control element with a bidirectional cut-off function. For instance, under normal circumstances, the first line on the circuit board 22 corresponding to the first working state is continuously connected in the control element, while the second line corresponding to the second working state is disconnected in the control element. When nerve detection is required, the first line is cut off and the second line is connected. The control element also has voltage shielding capability. For instance, a high-voltage blocking element may be provided on the second line. When a high-voltage current flows into the second line, the high-voltage current is blocked, that is, only nerve signals are allowed to pass through the second line.

[0064] like Figures 2 to 4 As shown, in some optional embodiments of this application, the holder 2 further includes a status button 23, which is used to switch the working state of the electric drill.

[0065] By setting the status button 23, the electrical connection relationship on the circuit board 22 can be adjusted to switch between the first working state and the second working state.

[0066] For example, the status button 23 may include a cutting button, an electrocoagulation button, and a probe button.

[0067] In some optional embodiments of this application, the circuit structure diagram of the circuit board 22 is as follows: Figures 6-7 As shown, on the front side of the circuit board, there are spaced-apart electrical cutting button solder points 811 corresponding to the cutting button, electrical coagulation button solder points 812 corresponding to the electrical coagulation button, and nerve detection button solder points 813 corresponding to the detection button, as well as loop connection contact points 814. On the back side of the circuit board, there is an electrical cutting input solder point 822, which is connected to the opposite position of the electrical cutting button solder point 811 via a wire to achieve electrical connection with the electrical cutting button solder point 811; on the back side of the circuit board, there is also an electrical coagulation input solder point 824, which is connected to the opposite position of the electrical coagulation button solder point 812 via a wire to achieve electrical connection with the electrical coagulation button solder point 812; a control element 821 is provided on the back side of the nerve detection button solder point 813 for controlling the nerve detection device, and is electrically connected to the nerve detection signal output contact 823, which is also provided on the back side of the circuit board. A brush 825 is provided on the back side of the circuit board near the electrical coagulation button solder point 812, and is connected to an electrode via an electrode rod. Accordingly, in some embodiments of this application, the circuit board 22 includes four lines: First circuit: loop connection contact 814 - nerve detection button solder joint 813 (control element 821) - brush 825. When the nerve detection button solder joint 813 is not pressed, this circuit is a continuous circuit. The loop connection contact 814 is connected to the loop in the first connector 5. When the nerve detection button solder joint 813 is pressed, the control element 821 disconnects the circuit. The second circuit is: electrical cutting input solder joint 822 - electrical cutting button solder joint 811 - brush 825. This circuit is open-circuited. The electrical cutting input solder joint 822 is connected to the cutting circuit in the first connector 5. When the electrical cutting button solder joint 811 is pressed, the circuit is connected, the cutting circuit is connected to the circuit, and cutting energy is delivered to the electrode.

[0068] The third circuit is: electrocoagulation input solder joint 824 - electrocoagulation button solder joint 812 - brush 825. This circuit is open circuit. The electrocoagulation input solder joint 824 is connected to the electrocoagulation circuit in the first connector 5. When the electrocoagulation button solder joint 812 is pressed, the circuit is connected and the electrocoagulation circuit is connected to the circuit to deliver electrocoagulation energy to the electrode.

[0069] Fourth circuit: Nerve detection signal output contact 823 - Nerve detection button solder joint 813 (control element 821) - brush 825. When the nerve detection button solder joint 813 is not pressed, this circuit is open, and the nerve detection signal output contact 823 is connected to the second connector 6. When the nerve detection button solder joint 813 is pressed, the control element 821 disconnects the first circuit and connects the fourth circuit at the same time, and the electrode can perform nerve detection. At this time, when the electric cut button solder joint 811 or the electric coagulation button solder joint 812 is pressed, the second circuit and the third circuit will not form a circuit, preventing high voltage energy from affecting the fourth circuit.

[0070] The control element 821 is equivalent to a switch that is on and off. When the nerve detection button solder joint 813 is not pressed, the first circuit is on and the fourth circuit is off; when it is pressed, the first circuit is off and the fourth circuit is on. At the same time, there is a high-frequency current-blocking inductor at one end of the nerve detection circuit to prevent high-frequency current from flowing in.

[0071] In some alternative embodiments of this application, at least a portion of the tip of the electrode head 12 is a bare metal area, which is used for nerve signal detection. The presence of a bare metal area facilitates the detection of nerve signals.

[0072] like Figures 2 to 4 As shown, in some optional embodiments of this application, the electrode rod 11 includes a rod housing 111 and a conductive rod 112 disposed in the rod housing 111. One end of the conductive rod 112 is connected to the electrode head 12, and the other end of the conductive rod 112 is electrically connected to the circuit board 22. The external power supply controls the output of the electrode head 12 through the conductive rod 112 to achieve the switching of different working states.

[0073] Furthermore, such as Figure 8 As shown, the electrode head 12 includes an electrode head housing 121 and an electrode core 122 extending through the electrode head housing 121. The electrode core 122 is electrically connected to a conductive rod 112. In some embodiments, the electrode core 122 and the conductive rod 112 are directly connected by welding to achieve current transmission. Further, the connection point between the electrode core 122 and the conductive rod 112 is located inside the electrode head housing 121 to facilitate the connection between the electrode core 122 and the conductive rod 112 and subsequent maintenance. In some preferred embodiments, the electrode core 122 has a bent portion at its end to facilitate contact with the detection area.

[0074] In some preferred embodiments, the electrode head housing 121 includes a connector 1211 and a head component 1212, the connector 1211 being fixedly connected to the head component 1212, and the head component 1212 having a through hole to allow the electrode core 122 to extend from the inside. In some embodiments, the head component 1212 has a retractable portion for user operation. Further, a protective layer is fitted over the rod housing 111 to protect it, the connector 1211 being located inside the protective layer to ensure the connection stability between the connector 1211 and the head component 1212, while the head component 1212 is at least partially located outside the protective layer for user operation.

[0075] By setting up the rod housing 111 and the conductive rod 112 inside the rod housing 111, on the one hand, the conductive rod 112 can supply power to the electrode head 12; on the other hand, the electrode rod 11 can have a relatively insulated outer shell structure, reducing the interference of the electrical relationship inside the electrode rod 11 to the outside.

[0076] like Figures 2 to 4 As shown, in some optional embodiments of this application, the electrode mechanism 1 further includes a bending member 3. The bending member 3 is located on the electrode rod 11 at one end away from the holder 2 and is sleeved on the outside of the conductive rod 112. The end of the bending member 3 away from the holder 2 is connected to the electrode head 12, and the bending part can be bent in a direction perpendicular to the axial direction of the electrode rod 11.

[0077] By setting the bending component 3, the linear relationship between the electrode head 12 and the electrode rod 11 can be changed, so that the electrode head 12 and the electrode rod 11 can have a certain angle. This makes it easy to adjust the positional relationship between the electrode head 12 and the electrode rod 11 according to the actual operation needs, expands the operating range of the electrosurgical pen, improves the universality of the electrosurgical pen, and enhances the surgical operation effect of the electrosurgical pen.

[0078] For example, refer to Figures 8-11The bending member 3 includes a plurality of continuously arranged bending sub-members 31. Each bending sub-member 31 has a first contraction section 311 and a second contraction section 312 arranged opposite to each other along the length direction of the electrode rod 11, as well as a first connection position 313 and a second connection position 314 arranged opposite to each other. Preferably, the contraction section and the connection position have a smooth transition. In some embodiments, adjacent bending sub-members 31 abut against each other through the first connection position 313 and the second connection position 314, while gaps are formed at adjacent first contraction sections 311 and second contraction sections 312 to facilitate bending.

[0079] In some preferred embodiments, the two ends of the bending member 3 are respectively provided with bending end members 32, and the bending end members 32 do not have a shrinkage section, so as to facilitate the cooperation of the bending member 3 with other structures such as electrode heads.

[0080] In some preferred embodiments, refer to Figures 9-11 The multiple adjacent bending sub-components 31 abut against each other but do not have a fixed connection relationship to ensure the flexibility of the bending component 3 when bending. Furthermore, the bending sub-component 31 has a first through hole 315 and a second through hole 316 through it in its thickness direction, that is, along the length direction of the electrode rod 11. The first connecting rod 33 and the second connecting rod 34 pass through the multiple bending sub-components 31 and are fixed to the bending end pieces 32 at both ends to increase the stability of the bending component 3.

[0081] In some preferred embodiments, the bending sub-component 31 further includes a third through hole 317 disposed at its center in the thickness direction. The third through hole 317 is used to pass through the conductive rod 112. By passing the conductive rod 112 through the middle of the bending sub-component 31, the force exerted on the conductive rod 112 when the electrode rod 11 is bent can be reduced, thus ensuring the normal operation of the electrode.

[0082] like Figures 2 to 4 As shown, in some optional embodiments of this application, the electrode rod 11 further includes a movable rod sleeve 113 located inside the rod housing 111, and the movable rod sleeve 113 is disposed between the rod housing 111 and the conductive rod 112. One end of the movable rod sleeve 113 is connected to the drive plate 114, and the other end is located inside the holder 2. The movable rod sleeve 113 can move relative to the rod housing 111 along the axial direction of the electrode rod 11.

[0083] In some embodiments, one end of the drive plate 114 is fixedly connected to the movable rod sleeve 113, and the other end is fixedly connected to the electrode head housing 121, thereby transmitting the movement of the movable rod sleeve 113 to the electrode head. Preferably, the drive plate 114 is fixedly connected to the connector 1211 to ensure stable power transmission.

[0084] In some preferred embodiments, by setting a movable sleeve 113, the movable sleeve 113 is disposed between the rod shell 111 and the conductive rod 112, and one end of the movable sleeve 113 is connected to the drive plate 114, and the other end is located in the holder 2. The movable sleeve 113 can move relative to the rod shell 111 along the axial direction of the electrode rod 11. While maintaining the electrode rod 11 as a rod-shaped structure, it can control the bending at the bending part 3, reduce the difficulty of operating the electric drill, and improve the working efficiency of the electric drill.

[0085] It is understandable that when the movable sleeve 113 moves along the axial direction of the electrode rod 11 toward the holder 2, the movable sleeve 113 drives the elastic electrode 1121 to move along the axial direction of the electrode rod 11 toward the holder 2. Since the other end of the drive piece 114 is connected to the electrode head shell 121, the electrode head 12 also has a tendency to move toward the holder 2. However, there is a bending member 3 arranged along the axial direction of the electrode rod 11 between the electrode head 12 and the electrode rod 11. In order to meet the moving tendency of the electrode head 12, the bending member 3 with bending ability bends, realizing the relative bending between the electrode head 12 and the electrode rod 11. When the movable sleeve 113 moves away from the holder 2 along the axial direction of the electrode rod 11, the movable sleeve 113 drives the elastic electrode 1121 to move away from the holder 2 along the axial direction of the electrode rod 11. Since the other end of the elastic electrode 1121 is connected to the electrode head 12, the electrode head 12 also has a tendency to move away from the holder 2. In order to satisfy the moving tendency of the electrode head 12, the bending member 3 is reset, thus achieving relative straightness between the electrode head 12 and the electrode rod 11.

[0086] In some preferred embodiments, the rod housing 111 includes an insulating layer 1111, which is sleeved on the outside of the movable rod sleeve 113 to shield the electrical energy inside the electrode rod.

[0087] like Figures 2-4 , Figure 12 As shown, in some optional embodiments of this application, the electric drill also includes a driving member 4, which is disposed on the end of the holder 2 near the electrode rod 11. The driving member 4 is fixedly connected to the movable rod sleeve 113 and is used to drive the movable rod sleeve 113 to move along the axial direction of the electrode rod 11.

[0088] By setting the driving component 4, on the one hand, the operating structure on the electric knife pen can be concentrated at the holding component 2, which makes it convenient for the operator to operate around the holding component 2 during operation, such as one-handed operation, which simplifies the operation of the electric knife pen and helps to improve the operation efficiency of the electric knife pen. It also keeps the operating structure of the bending component 3 away from the electrode head 12, reduces structural interference at the electrode head 12, and improves the operation accuracy of the electrode head 12. On the other hand, the electric knife pen has a driving moving rod sleeve 113 that moves along the axial direction of the electrode rod 11, which facilitates the control of the bending process of the bending component 3.

[0089] For example, the driving member 4 can be a pull handle provided on the holding member 2. Moving the pull handle along the axial direction of the electrode rod 11 can drive the moving rod sleeve 113 to move.

[0090] like Figures 2 to 4 As shown, in some optional embodiments of this application, the driving member 4 includes a driving seat 41, a rotating member 42, and a connecting block 43. The driving seat 41 is connected to the end of the holder 2 near the electrode rod 11. The driving seat 41 includes a limiting ring groove 411. The rotating member 42 is disposed in the limiting ring groove 411 and can rotate relative to the driving seat 41. The limiting ring groove 411 is used to restrict the rotating member 42 from moving axially along the electrode rod 11. The connecting block 43 is disposed in the receiving cavity of the rotating member 42 and is threadedly connected to the rotating member 42. The connecting block 43 is connected to the moving rod sleeve 113 and can move relative to the rotating member 42 along the axial direction of the electrode rod 11.

[0091] By setting up the drive seat 41, the rotating part 42, and the connecting block 43, on the one hand, the rotation of the rotating part 42 about the electrode rod 11 can be converted into the movement of the connecting block 43 along the axial direction of the electrode rod 11, thereby driving the moving sleeve 113 to move along the axial direction of the electrode rod 11, thus realizing the bending control of the bending part 3; on the other hand, the part of the electric drill that moves along the axial direction of the electrode rod 11 can be roughly located inside the electric drill, thereby reducing the change in the shape of the electric drill, reducing the impact of adjusting the related structure of the bending part 3 on the actual work of the electric drill, and facilitating the efficient operation of the electric drill.

[0092] It is understandable that the rotating part 42 is confined within the limiting ring groove 411, so when the rotating part 42 rotates, it cannot move on its own, and the connecting block 43, which is threadedly connected to it, rotates and moves along the axial direction of the electrode rod 11.

[0093] In some preferred embodiments, a positioning member 44 is provided inside the drive seat 41 near the electrode rod 11. The positioning member 44 has a through hole in its center for accommodating the conductive rod 112, the movable sleeve 113, and the insulating layer 1111, thereby positioning the aforementioned structures and reducing friction between them and the inner wall of the drive seat 41. The end of the insulating layer 1111 is fixed inside the positioning member 44, while the conductive rod 112 and the movable sleeve 113 both pass through the positioning member 44. The positioning member 44 includes a fixed end near the electrode rod 11 and a free end away from the electrode rod 11. The fixed end is press-fitted with the inner wall of the drive seat to ensure the positioning member 44 is stably positioned inside the drive seat 41.

[0094] For example, in some embodiments, the movable sleeve 113 is fitted onto the periphery of the conductive rod 112 at the end away from the electrode head 12. That is, the movable sleeve 113 can move axially relative to the conductive rod 112, thereby avoiding the potential impact on the axial position of the conductive rod 112 when adjusting the bending member 3 via the movable sleeve, and improving the stability of the product during operation.

[0095] In some preferred embodiments, the bending component 31 further includes a fourth through hole 318, which is spaced apart along a first direction on one side of the third through hole 317. The driving piece 114 passes through the fourth through hole 318. Inserting the driving piece 114 inside the bending component 31 improves the space utilization inside the electrode rod 11 and effectively reduces the overall volume of the electrode blade. Furthermore, the fourth through hole 318 is located close to the first connecting position 313 and the second connecting position 314, and is positioned opposite to the first contraction section 311 and the second contraction section 312, which is more conducive to the movement between the bending components 31 when the driving piece 113 moves. In some preferred embodiments, the driving piece 113 is elastic and can be an elastic sheet.

[0096] In some preferred embodiments, the bending component 31 further includes a fifth through hole 319 located near the first contraction section 311 and the second contraction section. No other through-holes are present in the fifth through hole. The fifth through hole 319 reduces the weight of the bending component 31 and, being positioned opposite the fourth through hole 318, facilitates deformation of the bending component 31, thus aiding its movement.

[0097] In some preferred embodiments, the first through hole 315 and the second through hole 316 are spaced apart and located on both sides of the third through hole 317 to improve the stability of the first connecting rod 33 and the second connecting rod 34 on the bent part 3. Furthermore, the line connecting the first through hole 315 and the second through hole 316 is a second direction, and the line connecting the fourth through hole 318 and the fifth through hole 319 is a first direction. The second direction is perpendicular to or nearly perpendicular to the first direction. This design ensures a more balanced distribution of components inside the bent part, improves product assembly efficiency, and avoids interference between components.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrosurgical pen for nerve detection, characterized in that, include: The electrode mechanism (1) includes an electrode rod (11) and an electrode head (12) located at one end of the electrode rod (11). The holder (2) is connected to one end of the electrode rod (11) away from the electrode head (12); The electrosurgical pen has a first working state and a second working state. In the first working state, the electrode mechanism (1) is electrically connected to a high-frequency device, enabling the electrode head (12) to perform cutting or coagulation. In the second working state, the electrode mechanism (1) is electrically connected to a nerve detection device, enabling the electrode head (12) to detect nerve signals. The electrode mechanism (1) further includes a bending member (3), which is located on the electrode rod (11) at one end away from the holder (2).

2. The electrosurgical pen for nerve detection according to claim 1, characterized in that, The holder (2) includes a housing (21) and a circuit board (22) located inside the housing (21). In the first working state, the circuit board (22) is electrically connected to the electrode mechanism (1) and the high-frequency device. In the second working state, the circuit board (22) is electrically connected to the electrode mechanism (1) and the neural detection device.

3. The electrosurgical pen for nerve detection according to claim 1, characterized in that, The electrode rod (11) includes a rod housing (111) and a conductive rod (112) disposed in the rod housing (111). One end of the conductive rod (112) is connected to the electrode head (12), and the other end of the conductive rod (112) is connected to the circuit board (22).

4. The electrosurgical pen for nerve detection according to claim 3, characterized in that, The bending member (3) is sleeved on the outside of the conductive rod (112). The end of the bending member (3) away from the holder is connected to the electrode head (12). The bending part can be bent in a direction perpendicular to the axial direction of the electrode rod (11).

5. The electrosurgical pen for nerve detection according to claim 4, characterized in that, The bending component (3) includes a plurality of continuously arranged bending sub-components (31), which have a first contraction section (311) and a second contraction section (312) arranged opposite to each other along the length direction of the electrode rod (11), as well as a first connection position (313) and a second connection position (314) arranged opposite to each other.

6. The electrosurgical pen for nerve detection according to claim 5, characterized in that, The bending sub-component (31) has a first through hole (315) and a second through hole (316) in its thickness direction. The first connecting rod (33) and the second connecting rod (34) pass through the multiple bending sub-components (31) and are fixed to the bending end pieces (32) at both ends. The bending sub-component (31) also includes a third through hole (317) in its thickness direction, which passes through the center position. The third through hole (317) is used to pass through the conductive rod (112).

7. The electrosurgical pen for nerve detection according to claim 4, characterized in that, The electrode rod (11) also includes a movable rod sleeve (113) located inside the rod housing (111), and the movable rod sleeve (113) is disposed between the rod housing (11) and the conductive rod (112); one end of the movable rod sleeve (113) is connected to the drive plate (114), and the other end is located inside the holder (2), and the movable rod sleeve (113) can move relative to the rod housing (111) along the axial direction of the electrode rod (11).

8. The electrosurgical pen for nerve detection according to claim 7, characterized in that, One end of the drive piece (114) is fixedly connected to the moving rod sleeve (113), and the other end is fixedly connected to the electrode head housing (121), thereby transmitting the movement of the moving rod sleeve (113) to the electrode head; the bending sub-component (31) also includes a fourth through hole (318), which is located on one side of the third through hole (317), and the drive piece (114) passes through the fourth through hole (318); the bending sub-component (31) also includes a fifth through hole (319) located near the first contraction section (311) and the second contraction section (312), and the fifth through hole (319) does not have any other through parts.

9. The electrosurgical pen for nerve detection according to claim 7 or 8, characterized in that, It also includes a drive member (4), which is disposed on the end of the holder (2) near the electrode rod (11). The drive member (4) is connected to the movable rod sleeve (113) and is used to drive the movable rod sleeve (113) to move along the axial direction of the electrode rod (11).

10. The electrosurgical pen for nerve detection according to claim 9, characterized in that, The driving component (4) includes a driving seat (41), a rotating component (42), and a connecting block (43). The driving seat (41) is connected to the end of the holder (2) near the electrode rod (11). The driving seat (41) includes a limiting ring groove (411). The rotating component (42) is disposed in the limiting ring groove (411) and can rotate relative to the driving seat (41). The limiting ring groove (411) is used to restrict the rotating component (42) from moving axially along the electrode rod (11). The connecting block (43) is disposed in the receiving cavity of the rotating component (42) and is threadedly connected to the rotating component (42). The connecting block (43) is connected to the moving sleeve rod and can move axially relative to the rotating component (42) along the electrode rod (11).

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