Multi-functional dissecting forceps with free rotation

Abstract

The present application relates to the technical field of medical apparatus and instruments, in particular to a multifunctional dissector capable of freely rotating, comprising a shell, an inner suction pipe and a multipurpose pipe are arranged in the shell, the multipurpose pipe is sleeved on the inner suction pipe, one end of the inner suction pipe is connected with an electrotome, the other end of the inner suction pipe is sleeved with a central shaft, a sliding plate sliding groove is formed in the central shaft; one end of the shell is provided with a front push block and a rear push block, the front push block and the rear push block are staggered to form a circle, the front push block and the rear push block are respectively connected with an inner pipe sliding plate and an outer pipe sliding plate through a hinged mechanism, the inner pipe sliding plate and the outer pipe sliding plate slide in the sliding plate sliding groove, one end of the outer pipe sliding plate is connected with a connecting ring, and the connecting ring is fixed on the multipurpose pipe. The present application rotates the circle body composed of the front push block and the rear push block, realizes synchronous rotation of the central shaft, the inner suction pipe and the multipurpose pipe, so that the electrotome rotates, the angle used by the electrotome is adjusted, and the electrotome is freely rotated by the doctor during the operation to adjust the use angle.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a freely rotatable multifunctional dissecter. Background Technology

[0002] The Peng's Multifunctional Surgical Dissector integrates four functions: suction, electrocoagulation (cutting), scraping, and dissection. Surgeons can use this multifunctional surgical dissector to perform various operations except suturing, such as incision, hemostasis, and dissection. It eliminates the need for frequent instrument changes during surgery, saving valuable time for both medical staff and patients, reducing intraoperative bleeding, significantly improving surgical quality, and lowering patient medical costs. The odor generated during electrocoagulation is also readily absorbed, benefiting the health of surgical staff; it is known as an "environmentally friendly electrosurgical unit." Therefore, it has been widely used in hundreds of hospitals nationwide. The invention patent application CN1440728A discloses this multifunctional surgical dissector.

[0003] However, while the aforementioned multifunctional surgical dissecter is comprehensive in function, it can only rotate the multi-purpose tube by rotating the insulator, thereby changing the suction angle and the position of electrocoagulation and electroresection. The electrocautery knife itself cannot be rotated. During surgery, some lesions require electroresection followed by electrocoagulation. The surgeon needs to rotate either their hand or the dissecter to adjust the electrocautery knife to the appropriate operating angle. Rotating the hand to change the angle of the electrocautery knife increases the strain on the surgeon's arm and may also obstruct their view. If the dissecter is rotated to change the angle of the electrocautery knife, the surgeon's hand position changes, resulting in an unconventional grip that increases the difficulty of using the dissecter and makes it inconvenient for the fingers to press the electrocoagulation and electroresection switches. Both methods undoubtedly increase surgical risks, rigidly limiting the use of the electrocautery knife and preventing it from fully realizing its potential. Summary of the Invention

[0004] In order to solve the problem that the use of electrosurgical knives in existing dissecting instruments is limited and the angle of use is inconvenient to adjust, this invention provides a multifunctional dissecting instrument that allows free rotation for the use of electrosurgical knives and multi-purpose tubes.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A freely rotatable multifunctional dissecting instrument includes a housing, inside which are an inner suction tube and a multi-purpose tube. One end of the inner suction tube is fitted inside the multi-purpose tube and connected to an electrocautery knife, while the other end is fitted inside a central shaft. The central shaft is rotatably connected to the housing, and a sliding groove is provided on the central shaft. One end of the housing is provided with a push block, which includes a front push block and a rear push block. The front push block and the rear push block are staggered and arranged on the outer periphery of the end of the housing. The front push block and the rear push block are respectively connected to an inner tube slide plate and an outer tube slide plate through a hinge mechanism. The inner tube slide plate and the outer tube slide plate are both set in slide plate grooves. One end of the inner tube slide plate is connected to the inner suction tube, and one end of the outer tube slide plate is connected to a connecting ring. The connecting ring is fixed to the multi-purpose tube. Rotating the circular body formed by the front push block and the rear push block, the inner tube slide plate and the outer tube slide plate set in the slide plate groove of the central axis slide plate, drives the central axis to rotate. Since the inner tube slide plate and the outer tube slide plate are fixedly connected to the inner suction tube and the multi-purpose tube respectively, the central axis will rotate synchronously with the inner suction tube and the multi-purpose tube, thereby rotating the electrosurgical unit and adjusting the angle of use of the electrosurgical unit. By pushing the front push block and the rear push block in sequence, the electrosurgical unit can be pushed out of the multi-purpose tube. Rotating the central axis can change the angle of use of the electrosurgical unit in electrosurgical state, which makes it convenient for doctors to freely rotate the electrosurgical unit to adjust the angle of use during surgery.

[0006] Furthermore, the hinge mechanism includes a connector disposed at the lower end of the front push block and the rear push block. Both ends of the connector are rotatably connected to connecting rods. The connecting rod on the front push block is connected to the inner tube slide plate, and the connecting rod on the rear push block is connected to the outer tube slide plate. One end of the inner tube slide plate and the outer tube slide plate is connected to a connecting block, and both ends of the connecting block are rotatably connected to the connecting rods.

[0007] Furthermore, one end of the housing is provided with a lever, and there is a gap between the housing and the lever. The lever is cylindrical, and its curved surface has a textured structure. The lever is fixedly connected to the central shaft, and a through hole is provided in the middle of the lever, which communicates with the inner suction tube inside the central shaft. This facilitates the doctor to rotate the electrosurgical unit through the lever during surgery. In the initial state, the forward and backward push blocks are engaged in the gap between the lower housing and the lever. The textured surface of the lever provides friction when rotating it.

[0008] Furthermore, both the front push block and the rear push block have triangular cross-sections. The width of the base corners of the front push block is greater than the width of the apex corner, and the width of the base corners of the rear push block is less than the width of the apex corner. Each pair of adjacent front push blocks jams the middle rear push block. This jamming of the rear push block prevents the multi-purpose tube from sliding freely.

[0009] Furthermore, a circuit board is fixed inside the housing, and an electrocoagulation switch and an electrocution switch are respectively provided on the circuit board for the electrocoagulation function and the electrocution function, and a conductive lever is provided below the circuit board.

[0010] Furthermore, a rectangular opening is provided on the multi-purpose tube corresponding to the circuit board, and a conductive ring is provided below the conductive lever. The conductive ring is sleeved on the outside of the multi-purpose tube and passes through the rectangular opening to connect with the inner suction tube. The current generated by the circuit board is transmitted to the electrosurgical knife through the conductive lever and the conductive ring, enabling the electrosurgical knife to have electrocoagulation and electrocuting functions. The conductive ring is circular to ensure that the conductive lever and the conductive ring are in contact.

[0011] Furthermore, the housing has a wire hole that connects to the circuit board, facilitating the connection of the power supply to the circuit board.

[0012] Furthermore, the housing is provided with a push-key groove, a push-key is provided on the push-key groove, and a slide channel is provided at the bottom of the push-key groove. The push-key passes through the slide channel and is connected to a locking block. This facilitates the doctor to push out the electrosurgical unit by pushing the key during surgery.

[0013] Furthermore, the locking block is U-shaped, the push key is connected to the bottom surface of the locking block's horizontal plate, and a retaining ring is provided in the locking block's groove. The retaining ring is fitted onto the multi-purpose tube, and the multi-purpose tube has a rectangular sliding opening corresponding to the push key's sliding groove. The retaining ring passes through the rectangular sliding opening and connects to the inner suction tube. The ring-shaped structure of the retaining ring ensures that it remains locked in the locking block's groove regardless of how the electrosurgical unit rotates.

[0014] Furthermore, one end of the shell is a constricted structure, and the inner suction tube and the multi-purpose tube protrude from the top of the constricted structure. An insulating sleeve is fitted onto the multi-purpose tube, and the insulating sleeve is rotatably connected to the shell. The top end of the multi-purpose tube is a beveled end. This beveled end has the functions of electrocoagulation and electrocautery, preventing the wall of the protruding part of the multi-purpose tube from touching the patient during surgery and causing accidental damage.

[0015] The beneficial effects of the present invention through the above technical solution are as follows: 1. On one hand, this invention can drive the central shaft to rotate by rotating the circular body formed by the combination of the front and rear push blocks, utilizing the inner and outer tube slide plates located in the slide groove of the central shaft slide plate. Since the inner and outer tube slide plates are fixedly connected to the inner suction tube and the multi-purpose tube respectively, the central shaft will rotate synchronously with the inner suction tube and the multi-purpose tube, thereby rotating the electrosurgical unit and adjusting the angle of use of the electrosurgical unit. Specifically, by sequentially pushing the front and rear push blocks, the electrosurgical unit can be pushed out of the multi-purpose tube, and rotating the central shaft can change the angle of use of the electrosurgical unit in electrosurgical state, making it convenient for doctors to freely rotate the electrosurgical unit to adjust the angle of use during surgery.

[0016] 2. In a further optimized version, the present invention also pushes the push key, and due to the cooperation of the locking block and the locking ring, drives the inner suction tube to move, thereby pushing the electrosurgical knife out of the multi-purpose tube. By rotating the lever, the central shaft can be rotated, thereby driving the inner suction tube and the multi-purpose tube to rotate. After the electrosurgical knife is pushed out of the multi-purpose tube, it can also be rotated, which facilitates the use of the dissecting instrument. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the freely rotatable multifunctional dissecting device of the present invention. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the structure of the freely rotatable multifunctional dissecting device of the present invention. Figure 2 .

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the structure of the freely rotatable multifunctional dissecting device of the present invention. Figure 3 .

[0021] Figure 5 yes Figure 4 Enlarged view of section B in the middle.

[0022] Figure 6 This is a schematic diagram of the initial state of the hinge mechanism. Figure 1 .

[0023] Figure 7 This is a schematic diagram of the initial state of the hinge mechanism. Figure 2 .

[0024] Figure 8 This is a schematic diagram of the initial state of the hinge mechanism. Figure 3 .

[0025] Figure 9 This is a structural diagram of the internal structure of the casing in its operational state.

[0026] Figure 10 This is a structural diagram of the hinge mechanism in use. Figure 1 .

[0027] Figure 11 This is a structural diagram of the hinge mechanism in use. Figure 2 .

[0028] Figure 12 This is a schematic diagram of the structure at the rotatable connection between the shell and the central shaft.

[0029] Figure 13 This is a structural diagram of the inner tube slide plate and connecting block.

[0030] The following numbers are used in the attached diagram: 1 is the housing, 2 is the lever, 3 is the front push block, 301 is the inner tube slide plate, 4 is the rear push block, 401 is the outer tube slide plate, 402 is the connecting ring, 5 is the wire hole, 6 is the electrocoagulation switch, 7 is the electrocuting switch, 8 is the push key, 801 is the locking block, 9 is the slide groove, 10 is the insulating sleeve, 11 is the beveled end, 12 is the electric knife, 13 is the conductive ring, 14 is the locking ring, 15 is the circuit board, 16 is the conductive lever, 17 is the connector, 18 is the connecting rod, 19 is the connecting block, 20 is the inner suction tube, 21 is the multi-purpose tube, and 22 is the central shaft. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 13 The multifunctional dissecting apparatus shown is freely rotatable and includes a housing 1. The housing 1 is provided with an inner suction tube 20 and a multi-purpose tube 21. One end of the inner suction tube 20 is fitted inside the multi-purpose tube 21 and connected to an electrosurgical knife 12. The other end is fitted inside a central shaft 22. The central shaft 22 is rotatably connected to the housing 1. A sliding groove is provided on the central shaft 22. The housing 1 is provided with a push block at one end, the push block includes a front push block 3 and a rear push block 4, the front push block 3 and the rear push block 4 are alternately arranged on the outer periphery of the end of the housing 1, the front push block 3 and the rear push block 4 are respectively connected to an inner tube slide plate 301 and an outer tube slide plate 401 through a hinge mechanism, the inner tube slide plate 301 and the outer tube slide plate 401 are both arranged in the slide plate groove, one end of the inner tube slide plate 301 is connected to the inner suction tube 20, and one end of the outer tube slide plate 401 is connected to a connecting ring 402, the connecting ring 402 is fixed on the multi-purpose tube 21. The hinge mechanism is hinged along the axis of the central shaft 22. Rotating the circular body formed by the front push block 3 and the rear push block 4 can drive the central shaft 22, the inner suction tube 20 and the multi-purpose tube 21 to rotate synchronously, adjusting the operating angle of the electrosurgical knife 12. Pushing the front push block 3 causes the inner tube slide plate 301 and the inner suction tube 20 to move forward synchronously. Since the front push block 3 and the inner tube slide plate 301 are connected by the hinge mechanism, the front push block 3 will slide into the interior of the housing 1, pushing the electrosurgical knife 12 out of the multi-purpose tube 21, making the electrosurgical knife 12 usable. Pushing the rear push block 4 causes the rear push block 4 to slide into the interior of the housing 1. The front end of the rear push block 4 presses against the rear end of the front push block 3, and the rear push block 4 pushes the front push block 3 forward together. The portion of the multi-purpose tube 21 extending out of the housing 1 increases, the overall length of the dissecter increases, and the working distance of the dissecter increases. In this embodiment, the distance the electric knife moves from the extension tube 21 depends on the shortest distance from the inner tube slide plate 301 to the connecting ring 402 in the initial state, and the extension distance of the extension tube 21 depends on the length of the central shaft 22.

[0032] like Figures 6-8As shown, the hinge mechanism includes a connector 17 located at the lower ends of the front push block 3 and the rear push block 4. Both ends of the connector 17 are rotatably connected to connecting rods 18. The connecting rod 18 on the front push block 3 connects to the inner tube slide plate 301, and the connecting rod 18 on the rear push block 4 connects to the outer tube slide plate 401. One end of both the inner tube slide plate 301 and the outer tube slide plate 401 is connected to a connecting block 19, both ends of which are rotatably connected to the connecting rods 18. First, press the front inclined surface of the front push block 3 to move the inner tube slide plate 301 forward a certain distance. Then, push the rear inclined surface of the front push block 3 to make the connecting rod 18 on the front push block 3 tend to be vertical. Then, use the same steps to push the rear push block 4 to make the connecting rod 18 on the rear push block 4 tend to be vertical. In this embodiment, both the connector 17 and the connecting block 19 are U-shaped long plates. Both ends of the connecting rod 18 are respectively located in the grooves of the connector 17 and the connecting block 19 and are rotatably connected to the groove walls.

[0033] like Figures 1-2 As shown, a lever 2 is provided at one end of the housing 1, and there is a gap between the housing 1 and the lever 2. The lever 2 is cylindrical, and its curved surface has a textured structure. The lever 2 is fixedly connected to the central shaft 22. A through hole is provided in the middle of the lever 2, which communicates with the inner suction tube 20 inside the central shaft 22. Rotating the lever 2 drives the central shaft 22 to rotate, which in turn drives the inner suction tube 20 and the multi-purpose tube 21 to rotate simultaneously, so that the electric knife 12 can also rotate in the use state. The suction tube can be connected through the through hole in the middle of the lever 2, so that the multi-purpose tube 21 has a suction function. The suction tube is rotatably connected to the lever 2.

[0034] like Figures 10-11As shown, both the front push block 3 and the rear push block 4 have triangular cross-sections. The width of the base corners of the front push block 3 is greater than the width of the apex corner, while the width of the base corners of the rear push block 4 is less than the width of the apex corner. Each pair of adjacent front push blocks 3 locks the middle rear push block 4. By locking the rear push block 4 with the front push block 3, the rear push block 4 can only move after the front push block 3 has moved, preventing the multi-purpose tube 21 from sliding freely. In this embodiment, when the electrosurgical unit 12 is in use, the bottom corner of the rear end of the front push block 3 is below the rear push block 4. During the process of the dissecter returning from the use state to the initial state, the inclined surface of the rear side of the front push block 3 exerts an upward force on the rear push block 4 to ensure that the front push block 3 pushes the rear push block 4 back to its original position. The achievement of the above purpose depends on the shortest distance from the inner tube slide plate 301 to the connecting ring 402 in the initial state. If the distance is too long, the rear push block 4 will be located behind the front push block 3 in the use state. During the process of resetting the dissecter, the front push block 3 pushes the front end of the rear push block 4 and pushes the rear push block 4 backward. The front push block 3 cannot give the rear push block 4 an upward force and cannot reset the rear push block 4. If the distance is too short, during the process of the rear push block 4 sliding into the housing 1, the front end of the rear push block 4 will be above or near the top corner of the front push block 3. Since the downward movement distance of the rear push block 4 is too short, the rear push block 4 will be unable to enter the housing 1 and cannot achieve the purpose to be achieved in this embodiment.

[0035] like Figures 4-5 As shown, a circuit board 15 is fixed inside the housing 1. The circuit board 15 has an electrocoagulation switch 6 and an electrocution switch 7 corresponding to the electrocoagulation and electrocution functions, respectively. A conductive lever 16 is located below the circuit board 15. A rectangular opening is formed on the multi-purpose tube 21 corresponding to the circuit board 15. A conductive ring 13 is located below the conductive lever 16, and the conductive ring 13 is fitted over the multi-purpose tube 21 and passes through the rectangular opening to connect to the inner suction tube 20. A wire hole 5 is formed on the housing 1, connecting to the circuit board 15. By connecting the circuit board 15 to the wire through the wire hole 5, pressing the electrocoagulation switch 6 or the electrocution switch 7 transmits the current generated by the circuit board 15 to the inner suction tube 20 through the conductive lever 16 and the conductive ring 13, enabling the electrocautery or electrocution function of the electrosurgical unit 12 at the end of the inner suction tube 20. In this embodiment, a conductive lever 16 is provided below the circuit board 15 at the position of the conductive ring 13 corresponding to both the initial and usage states of the dissecter. The usage state is when the multi-purpose tube 21 is at its maximum extension distance. Based on the structure of this embodiment, it can be imagined that the conductive ring 13 can be slidably connected to the inner suction tube 20, and the length of the rectangular opening is the same as the width of the conductive ring 13, so that the conductive ring 13 and the conductive paddle 16 are in a relatively stationary state during the movement of the inner suction tube 20.

[0036] like Figures 2-3As shown, the housing 1 has a push-button groove 9, and a push-button 8 is provided on the push-button groove 9. A slide rail is provided at the bottom of the push-button groove 9, and the push-button 8 passes through the slide rail and is connected to a locking block 801. The locking block 801 is U-shaped, and the push-button 8 is connected to the bottom surface of the horizontal plate of the locking block 801. A retaining ring 14 is provided in the groove of the locking block 801. The retaining ring 14 is sleeved on the multi-purpose tube 21. The multi-purpose tube 21 has a rectangular sliding opening corresponding to the push-button groove 9, and the retaining ring 14 passes through the rectangular sliding opening and is connected to the inner suction tube 20. Pushing the push button 8 causes the inner suction tube 20 to move as the push button 8 is pushed, which in turn causes the inner tube slide plate 301 to slide in the slide plate groove. This causes the front push block 3 to slide into the housing 1, allowing the electric knife 12 to extend from the multi-purpose tube 21. When the end of the inner tube slide plate 301 is pressed against the connecting ring 402, the extension distance of the electric knife 12 is at its maximum. Continuing to push the push button 8 will cause the end of the inner tube slide plate 301 to push the connecting ring 402, causing the inner suction tube 20 and the multi-purpose tube 21 to move synchronously until the push button 8 is pushed to the end of the push button groove 9. At this point, only a small part of the inner tube slide plate 301 is still in the slide plate groove.

[0037] like Figure 1 As shown, one end of the housing 1 has a constricted structure. The inner suction tube 20 and the multi-purpose tube 21 extend from the top of the constricted structure. An insulating sleeve 10 is fitted onto the multi-purpose tube 21, and the insulating sleeve 10 is rotatably connected to the housing 1. The top end of the multi-purpose tube 21 is a beveled end 11. The beveled end 11 is a conductive structure. When the electrocautery knife 12 can perform electrocoagulation and electrocution, the beveled end 11 also has the function of electrocoagulation and electrocution. The insulating sleeve 10 ensures that only the beveled end 11 of the multi-purpose tube 21 can perform electrocoagulation and electrocution, preventing the protruding part of the tube 21 from excessively contacting the patient's body tissue during surgery.

[0038] In use, pushing the push button 8 moves the inner suction tube 20 via the locking block 801, which is fixedly connected to the locking ring 14. This causes the inner tube slide plate 301 to slide within the slide plate groove, along with the front push block 3, which slides into the housing 1. The electric knife 12 extends from the multi-purpose tube 21. When the end of the inner tube slide plate 301 abuts against the connecting ring 402, the extension distance of the electric knife 12 is at its maximum. Continuing to push the push button 8 will cause the end of the inner tube slide plate 301 to push the connecting ring 402, causing the inner suction tube 20 and the multi-purpose tube 21 to move synchronously until the push button 8 reaches the end of the push button groove 9. At this point, only a small portion of the inner tube slide plate 301 remains within the slide plate groove, and the electric knife 12 is in use. The wire passes through the wire hole 5 and connects to the circuit board 15 to supply power to the circuit board 15. When the electrocoagulation switch 6 or the electrocution switch 7 is pressed, the current generated by the circuit board 15 is transmitted to the inner suction tube 20 through the conductive lever 16 and the conductive ring 13, so that the electrocautery knife 12 at the end of the inner suction tube 20 has the function of electrocoagulation or electrocution. When it is necessary to change the operating angle of the electrocautery knife 12, the lever 2 is rotated to drive the central shaft 22 to rotate, which in turn drives the inner suction tube 20 and the multi-purpose tube 21 to rotate synchronously, so that the electrocautery knife 12 can also rotate in the use state. The suction tube can be connected through the through hole in the middle of the lever 2, so that the multi-purpose tube 21 has the suction function and can absorb the debris, blood and smoke generated during the operation.

[0039] The embodiments described above are merely preferred embodiments of the invention and are not intended to limit the scope of the invention. Therefore, any equivalent changes or modifications made to the technical solutions described in the claims of this invention should be included within the scope of the patent application of this invention.

Claims

1. A freely rotatable multifunctional dissecting apparatus, comprising a housing (1), characterized in that, The housing (1) is provided with an inner suction tube (20) and a multi-purpose tube (21). One end of the inner suction tube (20) is fitted inside the multi-purpose tube (21) and connected to an electric knife (12). The other end is fitted inside the central shaft (22). The central shaft (22) is rotatably connected to the housing (1). A sliding groove is provided on the central shaft (22). The housing (1) is provided with a push block at one end. The push block includes a front push block (3) and a rear push block (4). The front push block (3) and the rear push block (4) are alternately arranged on the outer periphery of the end of the housing (1). The front push block (3) and the rear push block (4) are respectively connected to an inner tube slide plate (301) and an outer tube slide plate (401) through a hinge mechanism. The inner tube slide plate (301) and the outer tube slide plate (401) are both arranged in the slide plate groove. One end of the inner tube slide plate (301) is connected to the inner suction tube (20). One end of the outer tube slide plate (401) is connected to a connecting ring (402). The connecting ring (402) is fixed on the multi-purpose tube (21). The housing (1) has a lever (2) at one end, and there is a gap between the housing (1) and the lever (2). The lever (2) is fixedly connected to the central shaft (22). The lever (2) has a through hole in the middle, which is connected to the inner suction tube (20) inside the central shaft (22). The cross-sections of the front push block (3) and the rear push block (4) are both triangular. The width of the bottom corners of the front push block (3) is greater than the width of the top corner, and the width of the bottom corners of the rear push block (4) is less than the width of the top corner. Every two adjacent front push blocks (3) lock the middle rear push block (4).

2. The freely rotatable multifunctional dissecting apparatus according to claim 1, characterized in that, The hinge mechanism includes a connector (17) located at the lower ends of the front push block (3) and the rear push block (4). Both ends of the connector (17) are rotatably connected to a connecting rod (18). The connecting rod (18) on the front push block (3) is connected to the inner tube slide plate (301), and the connecting rod (18) on the rear push block (4) is connected to the outer tube slide plate (401). One end of the inner tube slide plate (301) and the outer tube slide plate (401) are connected to a connecting block (19). Both ends of the connecting block (19) are rotatably connected to the connecting rod (18).

3. The freely rotatable multifunctional dissecting apparatus according to claim 1, characterized in that, The dial (2) is cylindrical and the curved surface of the dial (2) has a textured structure.

4. The freely rotatable multifunctional dissecting apparatus according to claim 1, characterized in that, A circuit board (15) is fixed inside the housing (1). The circuit board (15) is provided with an electrocoagulation switch (6) and an electrocution switch (7) corresponding to the electrocoagulation function and the electrocution function, respectively. A conductive lever (16) is provided below the circuit board (15).

5. The freely rotatable multifunctional dissecting apparatus according to claim 4, characterized in that, A rectangular opening is provided on the multi-purpose tube (21) at the corresponding circuit board (15). A conductive ring (13) is provided below the conductive paddle (16). The conductive ring (13) is sleeved on the outside of the multi-purpose tube (21) and passes through the rectangular opening to connect with the inner suction tube (20).

6. The freely rotatable multifunctional dissecting apparatus according to claim 4, characterized in that, The housing (1) has a wire hole (5) which is connected to the circuit board (15).

7. The freely rotatable multifunctional dissecting apparatus according to claim 1, characterized in that, The housing (1) is provided with a push key groove (9), the push key groove (9) is provided with a push key (8), the bottom of the push key groove (9) is provided with a slide, and the push key (8) passes through the slide and is connected to a locking block (801).

8. The freely rotatable multifunctional dissecting apparatus according to claim 7, characterized in that, The card block (801) is U-shaped. The push key (8) is connected to the bottom surface of the horizontal plate of the card block (801). The card block (801) has a retaining ring (14) in the groove. The retaining ring (14) is sleeved on the multi-purpose tube (21). The multi-purpose tube (21) has a rectangular sliding opening at the push key sliding groove (9). The retaining ring (14) passes through the rectangular sliding opening and connects to the inner suction tube (20).

9. The freely rotatable multifunctional dissecting apparatus according to claim 1, characterized in that, One end of the housing (1) is a constricted structure. The inner suction tube (20) and the multi-purpose tube (21) extend from the top of the constricted structure. An insulating sleeve (10) is fitted on the multi-purpose tube (21). The insulating sleeve (10) is rotatably connected to the housing (1). The top end of the multi-purpose tube (21) is an oblique end (11).

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