Electrotome pen

Abstract

The electric knife pen comprises a knife handle and a knife head connected to the first end of the knife handle, the knife head is provided with a knife head inner cavity, and the part, extending out of the knife handle, of the knife head is provided with a smoke suction hole communicating the knife head inner cavity with the outside; the smoke exhaust pipe is connected to the cutter handle, a first pipe opening of the smoke exhaust pipe communicates with the inner cavity of the cutter head, and a second pipe opening of the smoke exhaust pipe is used for being connected with a negative pressure source; and the pace-making pulse generator is connected with the knife head and is used for sending pulses through the knife head. According to the electric scalpel pen, the inner cavity of the scalpel head is communicated with the negative pressure source through the smoke exhaust pipe, so that smoke generated by an operation at the end of the scalpel head is sucked into the inner cavity of the scalpel head through the smoke suction hole. Due to the fact that the smoke suction hole is formed in the scalpel head, smoke can be sucked into the scalpel head in time when the smoke is just formed, a patient can not easily perceive the smoke, and the nervous mood cannot be generated. Even if a patient has arrhythmia in an operation, the pace-making pulse generator can be started, pulses are conducted through the knife head, and the heart is pace-made through percutaneous external body, so that emergency treatment is carried out on the patient.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an electric surgical pen. Background Art

[0002] The electrosurgical pen is a surgical tool. During surgery, the electrosurgical pen heats the tissue when it comes into contact with the body through the high-frequency (e.g., 200kHz to 3MHz) high-voltage current generated by the effective electrode end, thereby separating and coagulating the body tissue, thereby achieving the purpose of cutting and hemostasis.

[0003] However, the traction and stimulation of surgical operations will have a certain degree of effect and influence on surrounding tissues and organs. For patients with heart disease, it may induce arrhythmia or even cardiac arrest. At the same time, the electrosurgical pen will produce a lot of smoke during the process of cutting tissue. This smoke will not only have an adverse effect on the patient's normal breathing, but if the patient sees a lot of smoke at the surgical site, he will also feel nervous, which is more likely to induce heart problems. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide an electric surgical pen.

[0005] Based on the above-mentioned purpose, the present application provides an electric surgical pen, including: a handle; a blade head connected to the first end of the blade handle, the blade head being provided with a blade head inner cavity, and the portion of the blade head extending out of the blade handle being provided with a smoking hole connecting the blade head inner cavity and the outside world; a smoke exhaust pipe connected to the blade handle, the first pipe opening of the smoke exhaust pipe being connected to the blade head inner cavity, and the second pipe opening of the smoke exhaust pipe being used to connect a negative pressure source; a pacing pulse generator connected to the blade head and used to send pulses through the blade head.

[0006] Optionally, at least two smoking holes are provided, and at least two smoking holes are staggeredly distributed on the cutter head.

[0007] Optionally, the knife handle is provided with a knife handle inner cavity, and the knife handle inner cavity is connected with the knife head inner cavity and the smoke exhaust pipe respectively.

[0008] Optionally, a controller is provided in the knife handle, and the controller includes a control key extending out of the circumferential outer wall of the knife handle, and the controller is electrically connected to the knife head and the pacing pulse generator respectively.

[0009] Optionally, the controller is also connected to a power cord, and the power cord is used to connect to a power source.

[0010] Optionally, the pacing pulse generator is detachably connected to the controller.

[0011] Optionally, the cutter head is a precious metal cutter head or a precious metal alloy cutter head.

[0012] Optionally, the cutter head is conical, and the conical tip of the cutter head is away from the cutter handle.

[0013] Optionally, the electric surgical pen also includes a blocking piece; the second pipe opening of the smoke exhaust pipe has a first state connected to the negative pressure source, and a second state separated from the negative pressure source; when the smoke exhaust pipe is in the second state, the blocking piece is detachably connected to the second pipe opening of the smoke exhaust pipe.

[0014] Optionally, the knife handle is provided with an anti-slip sleeve, and a plurality of anti-slip protrusions are arranged on the outer side of the anti-slip sleeve.

[0015] Optionally, a control key is distributed on the circumferential outer wall of the knife handle, the control key is close to the first end of the knife handle, and the anti-slip sleeve is arranged on a side of the control key away from the first end.

[0016] Optionally, the anti-slip cover is a flexible anti-slip cover.

[0017] From the above description, it can be seen that the inner cavity of the blade of the electrosurgical pen provided by the present application is connected to the negative pressure source through the smoke exhaust pipe. When the negative pressure source is activated, low pressure can be formed in the inner cavity of the blade, so that the smoke generated by the operation at the end of the blade is sucked into the inner cavity of the blade through the smoke hole. Since the smoke hole is set on the blade, the smoke can be sucked into the inside of the blade in time when it is just formed, and the patient is not easy to find it, so there will be no tension. At the same time, even if the patient has an irregular heartbeat during the operation, the pacemaker pulse generator can be started, and the pulse can be transmitted through the blade to perform percutaneous external pacing of the heart, so as to provide emergency treatment for the patient and avoid life-threatening situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of an electric surgical pen according to an embodiment of the present application;

[0020] Figure 2 A schematic cross-sectional view of the electric surgical pen according to an embodiment of the present application;

[0021] Figure 3 A schematic diagram of a knife head of an electric knife pen according to an embodiment of the present application;

[0022] Figure 4 A schematic cross-sectional view of an electric surgical pen of a second structure according to an embodiment of the present application;

[0023] Figure 5 A schematic diagram of a knife handle and a knife head separated from a pacing pulse generator in an electrosurgical pen according to an embodiment of the present application;

[0024] Figure 6 It is a cross-sectional schematic diagram of the electric surgical pen of an embodiment of the present application in the second state.

[0025] Description of reference numerals:

[0026] 1. Knife handle; 101. First end; 102. Second end; 103. Knife handle inner cavity; 103a. First inner cavity; 103b. Second inner cavity; 104. Inner partition;

[0027] 2. Cutter head; 201. Cutter head cavity; 202. Smoking hole;

[0028] 3. Smoke exhaust pipe; 301. First pipe opening; 302. Second pipe opening;

[0029] 4. Negative pressure source; 5. Pacemaker pulse generator; 6. Electrical socket;

[0030] 7. Controller; 701. Control keys;

[0031] 8. Blocking parts;

[0032] 9. Power cord; 901. Plug;

[0033] 10. Power supply; 11. Anti-slip cover; 1101. Anti-slip protrusion; 12. Electric plug. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0035] It should be noted that the relative arrangement of the components, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0036] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0038] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] When cutting tissue, the electrosurgical pen will cause carbonization, vaporization, and explosion of substances in cells, generating a large amount of smoke and dust particles, which will be released into the atmosphere and combined with aerosols formed by various particles in the air. The smoke contains a large amount of toxic and smelly impurities such as oil smoke, fog, and particles. These fumes will not only have adverse effects on patients, but also affect the vision of surgical operators and threaten the health of medical staff.

[0040] The applicant has found that at the point where the electric knife pen contacts the patient's body tissue, that is, the point where the smoke is initially generated, the diffusion range of the smoke is small, and as the smoke rises, its diffusion range will become larger and larger. Therefore, the closer to the point where the smoke is generated, the easier it is to deal with the smoke more thoroughly, thereby preventing the smoke from causing adverse effects on the operator and the patient.

[0041] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides an electric surgical pen, including: a handle 1; a blade head 2, connected to the first end 101 of the blade handle 1, the blade head 2 is provided with a blade head inner cavity 201, and the portion of the blade head 2 extending out of the blade handle 1 is provided with a smoking hole 202 connecting the blade head inner cavity 201 and the outside; a smoke exhaust pipe 3, connected to the blade handle 1, the first pipe opening 301 of the smoke exhaust pipe 3 is connected to the blade head inner cavity 201, and the second pipe opening 302 of the smoke exhaust pipe 3 is used to connect to a negative pressure source 4; a pacing pulse generator 5, connected to the blade head 2, and used to send pulses through the blade head 2.

[0042] Exemplarily, the cross-sectional shape of the shank 1 perpendicular to the axis may be a polygon, a circle, an ellipse or a rounded polygon, which is not limited here.

[0043] For example, the blade head 2 and the handle 1 can be connected by bonding, clamping, crimping or fasteners (such as screws). Along the axial direction of the blade head 2, a part of the blade head 2 overlaps with the handle 1 to achieve the connection between the two; another part of the blade head 2 extends out of the handle 1. The end of the part of the blade head 2 extending out of the handle 1 (the end away from the handle 1) is used to contact the patient's body tissue.

[0044] Exemplarily, the smoke exhaust pipe 3 is connected to the knife handle 1 by bonding, plugging or clamping.

[0045] Exemplarily, the negative pressure source 4 may be a negative pressure machine or a negative pressure pump.

[0046] In the electric pen, the blade head 2 acts as an effective electrode. The high-frequency high-voltage current generated at the end of the blade head 2 away from the handle 1 heats the body tissue when it contacts the body, thereby separating and coagulating the body tissue, thereby achieving the purpose of cutting and hemostasis. When the blade head 2 separates and coagulates the body tissue, smoke is also generated at the blade head 2. At this time, under the action of the negative pressure source 4, a low air pressure is formed in the blade head cavity 201, so that the smoke is sucked into the blade head cavity 201 through the smoking hole 202. The smoke in the blade head cavity 201 is discharged from the handle 1 through the smoke exhaust pipe 3 and transported to a designated device (such as a purification and recovery device) or outdoors by a pipeline (the pipeline can be connected to the negative pressure source 4).

[0047] At the same time, when a patient being treated by the electrosurgical pen develops arrhythmia, the pacing pulse generator 5 can be started, and the pacing pulse generator 5 can send pulses to the patient through the blade head 2, thereby achieving the purpose of percutaneous external cardiac pacing.

[0048] In the electrosurgical pen provided in the embodiment of the present application, the inner cavity 201 of the blade head is connected to the negative pressure source 4 through the smoke exhaust pipe 3. When the negative pressure source 4 is started, low pressure can be formed in the inner cavity 201 of the blade head, so that the smoke generated at the end of the blade head 2 during the operation can be sucked into the inner cavity 201 of the blade head through the smoke hole 202. Since the smoke hole 202 is set on the blade head 2, the smoke can be sucked into the inside of the blade head 2 in time when it is just formed, and the patient is not easy to find it, so there will be no tension. At the same time, even if the patient has arrhythmia during the operation, the pacing pulse generator 5 can be started, and the pulse can be transmitted through the blade head 2 to perform percutaneous external pacing of the heart, so as to provide emergency treatment for the patient and avoid life-threatening situations.

[0049] like Figure 1 and Figure 3 As shown, in some embodiments, at least two smoking holes 202 are provided, and at least two smoking holes 202 are staggeredly distributed on the cutter head 2 .

[0050] For example, the shape of the smoking hole 202 can be polygonal, circular, elliptical or rounded polygonal, which is not limited here.

[0051] For example, the diameter of the smoking hole 202 may be 1 mm.

[0052] For example, the smoking holes 202 may be arranged at intervals on one side of the cutter head 2 , or arranged at intervals around the cutter head 2 , or arranged at intervals in a spiral on the cutter head 2 .

[0053] The staggered arrangement of the smoking holes 202 helps to arrange as many smoking holes 202 as possible on the cutter head 2 with a smaller surface area, so as to increase the speed at which the cutter head 2 inhales smoke. At the same time, the staggered arrangement of the smoking holes 202 can also make the interval between adjacent smoking holes 202 larger, which helps to ensure that the cutter head 2 itself meets the strength requirements.

[0054] like Figure 2 As shown, in some embodiments, the knife handle 1 is provided with a knife handle inner cavity 103, and the knife handle inner cavity 103 is communicated with the knife head inner cavity 201 and the smoke exhaust pipe 3 respectively.

[0055] Exemplarily, an opening communicating with the inner cavity 103 of the knife handle is provided at the second end 102 of the knife handle 1 away from the first end 101, and the first pipe opening 301 of the smoke exhaust pipe 3 can be connected to the opening at the outside of the knife handle 1, such as Figure 2 Or the exhaust pipe 3 enters the inner cavity 103 of the handle through the opening, such as Figure 4 .

[0056] The inner cavity 103 of the knife handle can serve as a smoke delivery channel connecting the knife head 2 and the smoke exhaust pipe 3. The smoke sucked into the inner cavity 201 of the knife head can pass through the inner cavity 103 of the knife handle and enter the smoke exhaust pipe 3 from the first pipe opening 301, and be discharged from the knife handle 1 through the smoke exhaust pipe 3.

[0057] At the same time, the electrical components in the electric knife pen can also be installed in the inner cavity 103 of the knife handle.

[0058] like Figure 2 and Figure 4 As shown, in some embodiments, a controller 7 is provided in the knife handle 1, and the controller 7 includes a control key 701 extending out of the circumferential outer wall of the knife handle 1, and the controller 7 is electrically connected to the knife head 2 and the pacing pulse generator 5 respectively.

[0059] Exemplarily, the controller 7 may be directly disposed in the inner cavity 103 of the tool handle.

[0060] For example, Figure 4The handle inner cavity 103 may be provided with an inner partition 104 to separate the handle inner cavity 103 into a first inner cavity 103a and a second inner cavity 103b. The controller 7 may be provided in the first inner cavity 103a, and the second inner cavity 103b is connected to the cutter head inner cavity 201 to transport the smoke sucked into the electric knife pen.

[0061] Exemplarily, the controller 7 and the blade head 2 , as well as the controller 7 and the pacing pulse generator 5 are electrically connected via electrical connecting wires.

[0062] Exemplarily, three control keys 701 may be provided, which may be used to control the electrosurgical pen to perform electrocuting, electrocoagulation, and cardiac pacing, respectively. The three control keys 701 extend from the inner cavity 103 of the handle to the outside through the through holes penetrating the circumferential side wall of the handle 1.

[0063] Exemplarily, the three control keys 701 may be spaced apart and distributed along the axis direction of the handle 1 .

[0064] When in use, the surgical operator can trigger the control key 701 by touching or pressing it, so as to control the electrosurgical pen to perform electrocuting, electrocoagulation or cardiac pacing through the controller 7 .

[0065] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the controller 7 is also connected to a power line 9, and the power line 9 is used to connect to a power source 10.

[0066] Exemplarily, the power source 10 may be mains electricity, a battery, or a generator.

[0067] Exemplarily, one end of the power cord 9 is inserted into the inner cavity 103 of the knife handle and connected to the controller 7, and the other end extends out of the knife handle 1 and is provided with a plug 901. Figure 5 The power cord 9 can be electrically connected to the mains socket through the plug 901.

[0068] The power supply 10 supplies power to the controller 7 , electronic components connected to the controller 7 , and devices connected to the controller 7 (such as the pacing pulse generator 5 ) through the power supply line 9 .

[0069] Since the blade head 2 is in direct contact with the patient's body tissue, it can be replaced after the operation is completed. The pacing pulse generator 5 does not directly contact the patient and can be reused. When replacement is required, the blade head 2 can be removed from the handle 1 for replacement; or the handle 1 and the blade head 2 can be replaced at the same time.

[0070] like Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the pacing pulse generator 5 is detachably connected to the controller 7.

[0071] Exemplarily, an electrical socket 6 may be provided at the second end 102 of the shank 1, and the electrical socket 6 is connected to the controller 7 via an electrical connection line. An electrical plug 12 may be provided on the electrical connection line connected to the pacing pulse generator 5, and the electrical plug 12 is detachably connected to the electrical socket 6.

[0072] When replacing, the pacemaker pulse generator 5 can be separated from the controller 7, and the separated knife handle 1 and knife head 2 can be separated as shown in FIG. Figure 5 After separation, the pacing pulse generator 5 is connected to the controller 7 in the new knife handle 1. The replacement process is easy to operate, and the pacing pulse generator 5 can be reused, which helps to reduce medical costs.

[0073] In some embodiments, the cutter head 2 is a precious metal cutter head or a precious metal alloy cutter head.

[0074] The precious metal blade head or precious metal alloy blade head can not only transmit high-frequency high-voltage current well, but also transmit pulse well, so as to ensure that the electrosurgical pen of this embodiment can perform electroresection surgery, electrocoagulation surgery, and cardiac pacing through the same blade head 2.

[0075] like Figure 1 and Figure 3 As shown, in some embodiments, the cutter head 2 is conical, and the conical tip of the cutter head 2 is away from the handle 1.

[0076] The conical tip of the blade head 2 can perform surgery on body tissue more accurately. The conical blade head 2 can make a smooth transition between the conical tip and the end with a larger conical diameter (the end where the blade head 2 is connected to the handle 1), without blocking the vision of the surgical operator. At the same time, the conical blade head 2 has a larger surface area, which helps to arrange more smoking holes 202 and improve the smoking efficiency of the electric knife pen.

[0077] like Figure 4 and Figure 6 As shown, in some embodiments, the electric surgical pen also includes a blocking piece 8; the second pipe opening 302 of the smoke exhaust pipe 3 has a first state connected to the negative pressure source 4, and a second state separated from the negative pressure source 4; when the smoke exhaust pipe 3 is in the second state, the blocking piece 8 is detachably connected to the second pipe opening 302 of the smoke exhaust pipe 3.

[0078] Exemplarily, the blocking member 8 may be a sealing plug.

[0079] When the electric knife pen is used for electro-cutting or electro-coagulation, the smoke exhaust pipe 3 is in the first state to ensure that low pressure can be formed in the inner cavity 201 of the knife head through the normally working negative pressure source 4. When the smoke exhaust pipe 3 is in the second state, the second pipe opening 302 of the smoke exhaust pipe 3 can be blocked by the blocking member 8 to prevent dust or foreign matter from entering the smoke exhaust pipe 3 through the second pipe opening 302.

[0080] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the knife handle 1 is provided with an anti-slip cover 11 , and a plurality of anti-slip protrusions 1101 are arranged on the outer side of the anti-slip cover 11 .

[0081] Exemplarily, the anti-slip protrusions 1101 are evenly spaced apart on the outer surface of the anti-slip cover 11 .

[0082] Exemplarily, along a direction perpendicular to the axis of the knife handle 1 , the shape of the outer contour of the anti-slip protrusion 1101 in the orthographic projection of the knife handle 1 can be a polygon, a circle, an ellipse or a rounded polygon, which is not limited here.

[0083] Exemplarily, the diameter of the circumscribed circle of the outer contour of the orthographic projection of the anti-slip protrusion 1101 on the handle 1 is 1 mm.

[0084] The anti-slip protrusion 1101 can effectively increase the friction between the operator's hand and the knife handle 1, thereby preventing the operator's hand and the knife handle 1 from sliding relative to each other and affecting the surgical effect.

[0085] In some embodiments, the anti-slip cover 11 is a flexible anti-slip cover.

[0086] The anti-slip cover 11 may be made of a flexible material (such as rubber) to increase the comfort of the operator's hands and avoid discomfort in the operator's hands caused by holding the device for a long time.

[0087] like Figure 1 As shown, in some embodiments, the control key 701 is close to the first end 101 of the knife handle 1 , and the anti-slip cover 11 is arranged on a side of the control key 701 away from the first end 101 .

[0088] Typically, the surgical operator will hold the knife handle 1 with the middle and base of the fingers, and trigger the control key 701 with the knuckles of the finger tips.

[0089] When the surgical operator holds the knife handle 1, since the anti-slip cover 11 is disposed near the second end 102 of the knife handle 1, the position of the anti-slip cover 11 can correspond to the middle and root of the surgical operator's fingers, so that the anti-slip cover 11 can better play an anti-slip role. At the same time, since the control key 701 is disposed near the first end 101 of the knife handle 1, the position of the control key 701 can correspond to the finger head of the surgical operator, which is convenient for the surgical operator to trigger the control key 701, which conforms to the operator's operating habits and is reasonably arranged.

[0090] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0091] The various embodiments in the present application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0092] The description of the present application is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present application to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present application, and to enable those of ordinary skill in the art to understand the present application and thus design various embodiments with various modifications suitable for specific purposes.

[0093] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0094] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0095] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. An electric knife pen, characterized in that: include: Handle; A cutter head connected to the first end of the knife handle, the cutter head is provided with a cutter head inner cavity, and a portion of the cutter head extending out of the knife handle is provided with a smoking hole connecting the cutter head inner cavity and the outside; A smoke exhaust pipe is connected to the knife handle, a first pipe opening of the smoke exhaust pipe is communicated with the inner cavity of the knife head, and a second pipe opening of the smoke exhaust pipe is used to connect to a negative pressure source; A pacing pulse generator is connected to the blade head and is used to send pulses through the blade head.

2. The electric surgical pen according to claim 1, characterized in that: At least two smoking holes are provided, and at least two smoking holes are staggeredly distributed on the cutter head.

3. The electric surgical pen according to claim 1, characterized in that: The knife handle is provided with a knife handle inner cavity, and the knife handle inner cavity is communicated with the knife head inner cavity and the smoke exhaust pipe respectively.

4. The electric surgical pen according to claim 1, characterized in that: The knife handle is provided with a controller, and the controller includes a control key extending out of the circumferential outer wall of the knife handle. The controller is electrically connected to the knife head and the pacing pulse generator respectively.

5. The electric surgical pen according to claim 4, characterized in that: The controller is also connected to a power line, and the power line is used to connect to a power source.

6. The electric surgical pen according to claim 4, characterized in that: The pacing pulse generator is detachably connected to the controller.

7. The electric surgical pen according to claim 1, characterized in that: The cutter head is a precious metal cutter head or a precious metal alloy cutter head.

8. The electric surgical pen according to claim 1, characterized in that: The cutter head is in a cone shape, and the cone tip of the cutter head is far away from the cutter handle.

9. The electric surgical pen according to claim 1, characterized in that: The electric surgical pen also includes a blocking piece; the second pipe opening of the smoke exhaust pipe has a first state connected to the negative pressure source, and a second state separated from the negative pressure source; when the smoke exhaust pipe is in the second state, the blocking piece is detachably connected to the second pipe opening of the smoke exhaust pipe.

10. The electric surgical pen according to claim 1, characterized in that: The knife handle is provided with an anti-skid sleeve, and a plurality of anti-skid protrusions are arranged on the outer side of the anti-skid sleeve.

11. The electric surgical pen according to claim 10, characterized in that: A control key is distributed on the circumferential outer wall of the knife handle, the control key is close to the first end of the knife handle, and the anti-slip sleeve is arranged on a side of the control key away from the first end.

12. The electric surgical pen according to claim 10, characterized in that: The anti-skid cover is a flexible anti-skid cover.

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