Bending compensation device for high-frequency electrotome

Abstract

The invention relates to the technical field of high-frequency electrotomes, in particular to a bending compensation device for a high-frequency electrotome, which comprises a handle, a button, a PCBA (printed circuit board assembly) control panel, a power line, a conductive part, a T-shaped part, an inner snake-bone tube, an outer snake-bone tube, a sleeve, a first connecting piece and an electrotome. According to the bending compensation device for the high-frequency electrotome, a rotating sleeve of the rotating assembly can drive an inner rotating block, a second connecting piece and a snake-bone pipe to rotate integrally, stability of a sliding ring is not affected when the inner snake-bone pipe rotates due to the arrangement of a bearing, and further rotating adjustment of the electrotome on the basis of bending is achieved; the cutting requirements of multiple directions and complex angles are met, and the flexibility and accuracy of surgical operation are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-frequency electrotome, in particular to a bending compensation device for high-frequency electrotome. BACKGROUND

[0002] At present, high-frequency electrotome occupies an important position in the field of surgical operation, and its working principle is based on the high-frequency current heat effect. The concentrated heat effect is generated by the contact of dense high-frequency current with the body to heat the tissue, so as to realize cutting and hemostasis. It is widely used in general surgery, gynecology, urology, orthopedics, thoracic surgery, neurosurgery and ear-nose-throat surgery, etc.

[0003] Although high-frequency electrotome is widely used and has many advantages, such as fast cutting speed, good hemostatic effect, flexible operation and wide application range, etc., the high-frequency electrotome under the prior art still has significant defects in actual surgical application. Due to the structural characteristics of the slender structure of the knife rod, the bending of the knife rod will reduce the control accuracy of the knife head during the operation process, so that during the operation, the position reached by the knife tip has errors with the target position to be cut, which may cause damage to the non-target position of the tissue, expand the cutting range, and even may cause serious consequences, such as in neurosurgery, ophthalmology and other operations with high operation precision requirements, which may cause accidental damage to non-target tissue, expand the cutting range, affect the operation effect, and even cause postoperative complications, which has adverse effects on the rehabilitation of patients.

[0004] With the continuous progress of medical technology, surgical operation is developing towards more precise and minimally invasive. The requirement for the operation precision of high-frequency electrotome is increasing, and the precision problem caused by the bending of the knife rod of the existing high-frequency electrotome technology has become a bottleneck restricting its further application in high-end and complex operations.

[0005] Therefore, the present application provides a bending compensation device for high-frequency electrotome to solve the above problems. SUMMARY

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a bending compensation device for high-frequency electrotome to solve the above problems caused by the structural characteristics of the slender structure of the knife rod, the bending of the knife rod will reduce the control accuracy of the knife head during the operation process, so that during the operation, the position reached by the knife tip has errors with the target position to be cut, which may cause damage to the non-target position of the tissue, expand the cutting range, and even may cause serious consequences.

[0007] In order to achieve the above object, the application provides a bending compensation device for a high-frequency electrotome, which comprises a handle, the surface of the handle is provided with a button, the inside of the handle is provided with a PCBA control board and a power cord, the surface of the PCBA control board is provided with a conductive part, the inside of the handle is provided with a T-shaped part, the inner wall of the T-shaped part is fixedly provided with an inner snake bone pipe, the outer side of the inner snake bone pipe is provided with an outer snake bone pipe, the outer side of the outer snake bone pipe is provided with a coaxial sleeve, the end of the inner snake bone pipe away from the handle is provided with a first connecting piece, the first connecting piece away from the inner snake bone pipe is provided with an electrotome, and the electrotome can cut the tissue in the body. The handle is provided with a bending assembly for bending and deforming the inner snake bone pipe.

[0008] Preferably, the surface of the inner snake bone pipe is provided with a plurality of first arc-shaped grooves arranged at equal distances along the axial direction of the inner snake bone pipe, so that the inner snake bone pipe has a certain bending space.

[0009] Preferably, the surface of the outer snake bone pipe is provided with a plurality of second arc-shaped grooves arranged at equal distances along the axial direction of the outer snake bone pipe and a groove, the second arc-shaped grooves are communicated with the groove, the inner wall of the second arc-shaped grooves is provided with a rib wall, the rib wall is slidingly connected to the inside of the groove, and the rib wall can slide transversely in the inside of the groove, so that the inner snake bone pipe can be limited by the cooperation of the rib wall and the groove.

[0010] Preferably, the outer wall of the first connecting piece is symmetrically fixedly provided with a first clamping block, the side of the first connecting piece away from the inner snake bone pipe is provided with a connecting head, the side of the connecting head facing the inner snake bone pipe is formed with a second clamping block, the second clamping block abuts against the outer wall of the first clamping block, the side of the outer snake bone pipe facing the connecting head is provided with a limiting groove matched with the first clamping block and the second clamping block, and the first clamping block and the second clamping block are slidingly connected to the inside of the limiting groove.

[0011] Preferably, the bending assembly comprises a sliding ring slidingly connected to the surface of the T-shaped part, the axial direction of the sliding ring is same as that of the T-shaped part, the sliding ring can slide transversely along the axial direction of the T-shaped part, the outer wall of the sliding ring is symmetrically fixedly provided with two driving blocks, the surface of the handle is provided with sliding openings matched with the driving blocks, and the driving blocks are slidingly connected to the inside of the sliding openings.

[0012] Preferably, the surface of the handle is provided with a screw sleeve, the surface of the handle is provided with a positioning groove accommodating the screw sleeve, the positioning groove is communicated with the sliding openings, the screw sleeve is located in the inside of the positioning groove, the inner wall of the screw sleeve is provided with a threaded section, and the driving blocks are located in the inside of the threaded section, when the screw sleeve rotates, the driving blocks can be pushed to slide in the inside of the sliding openings.

[0013] Preferably, the surface of the T-shaped piece is sleeved with a bearing, one side of the bearing abuts against the surface of the sliding ring, the friction force borne by the sliding ring when sliding can be reduced, the side of the bearing away from the sliding ring is provided with a nylon nut, and the nylon nut is installed on the surface of the T-shaped piece, so that the sliding ring and the bearing can be limited.

[0014] Preferably, the rotating assembly comprises a rotating sleeve arranged on the surface of the handle, and the rotating sleeve is sleeved with an inner rotating block in the inside, and the rotating sleeve can drive the inner rotating block to rotate.

[0015] Preferably, the handle is provided with an annular groove, the rotating sleeve is provided with a rib wall, and the rib wall of the rotating sleeve is slidably connected in the inside of the annular groove.

[0016] Preferably, the outer serpentine tube is fixedly provided with a second connecting piece, the outer wall of the second connecting piece is symmetrically fixedly provided with two third clamping blocks, the inner rotating block is provided with an accommodating groove, and the third clamping blocks are located in the inside of the accommodating groove.

[0017] The beneficial effects of the present application are: The inner serpentine tube and the outer serpentine tube can be synchronously bent by rotating the screw sleeve, the rib wall of the outer serpentine tube cooperates with the groove to limit the inner serpentine tube to bend in only one direction, so that the bending deviation is avoided, the electrotome can be accurately aligned with tissues at different positions, the problem that the cutting angle of the traditional electrotome is fixed and it is difficult to adapt to complex anatomical positions is solved, the inner rotating block, the second connecting piece and the serpentine tube can be rotated as a whole by the rotating sleeve of the rotating assembly, the stability of the sliding ring is not affected when the inner serpentine tube rotates due to the arrangement of the bearing, the electrotome can be further rotated and adjusted on the basis of bending, the cutting demand in multiple directions and complex angles is met, and the flexibility and accuracy of the operation are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the present application; Figure 2 It is a structural schematic view of the handle of the present application; Figure 3 It is a structural schematic view of the electrotome of the present application; Figure 4 It is a structural schematic view of the bending assembly of the present application; Figure 5 It is a structural schematic view of the first solid section of the sleeve of the present application; Figure 6 It is a structural schematic view of the inner serpentine tube of the present application; Figure 5 It is an enlarged structural schematic view of A in the present application; Figure 7 It is a structural schematic view of the inner serpentine tube of the present application; Figure 8 It is a structural schematic view of the outer serpentine tube of the present application; Figure 9 This is a schematic diagram of the connector structure of the present invention; Figure 10 This is a schematic diagram of the structure of the first connecting piece of the present invention; Figure 11 This is a schematic diagram of the rotating sleeve of the present invention.

[0019] In the picture: 10. Handle; 101. Upper shell; 102. Lower shell; 103. Arc-shaped block; 104. Linkage groove; 105. Annular block; 11. Button; 12. PCBA control board; 13. Power cord; 14. Conductive component; 15. T-shaped component; 16. Inner snake-bone tube; 160. First arc-shaped groove; 17. Outer snake-bone tube; 170. Second arc-shaped groove; 171. Groove; 18. Sleeve; 19. First connecting piece; 190. First locking block; 110. Connector; 1101. Second locking block; 111. Electric cutter; 112. Limiting groove; 20. Bending assembly; 21. Sliding ring; 22. Drive block; 23. Sliding end; 24. Screw sleeve; 25. Positioning groove; 26. Bearing; 27. Nylon nut; 30. Rotating assembly; 31. Rotating sleeve; 32. Inner rotating block; 33. Annular groove; 34. Second connecting piece; 35. Receiving groove; 36. Third locking block. Detailed Implementation

[0020] The following will refer to the attached reference. Figures 1-11 The various embodiments of the present invention will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] like Figures 1 to 11 As shown, a bending compensation device for a high-frequency electrosurgical unit includes a handle 10, which is assembled from an upper shell 101 and a lower shell 102. An arc-shaped block 103 is snapped onto the handle 10. The handle 10 has a linkage groove 104 for assembling the arc-shaped block 103, and the arc-shaped block 103 is snapped onto the linkage groove 104. A detachable annular block 105 is installed on the outside of the arc-shaped block 103 to stabilize the arc-shaped block 103 on the handle 10, thereby completing the assembly of the upper shell 101 and the lower shell 102.

[0022] The handle 10 has a button 11 on its surface. The handle 10 has a PCBA control board 12 and a power cord 13 installed inside. The end of the power cord 13 can be connected to a power source. The surface of the PCBA control board 12 has a conductive element 14. The PCBA control board 12 is powered by plugging the power cord 13 into the power source. The button 11 controls the opening and closing state of the PCBA control board 12. All of these are existing technologies and will not be described in detail.

[0023] The handle 10 is internally provided with a T-shaped piece 15, the middle part of the T-shaped piece 15 is provided with a through hole penetrating left and right, the inner wall of the T-shaped piece 15 is fixedly provided with an inner serpentine pipe 16, the surface of the inner serpentine pipe 16 is provided with a plurality of first arc-shaped grooves 160 arranged equidistantly along the axial direction of the inner serpentine pipe 16, and the inner serpentine pipe 16 has a certain bending space.

[0024] The outer surface of the inner serpentine pipe 16 is provided with an outer serpentine pipe 17, the surface of the outer serpentine pipe 17 is provided with a plurality of second arc-shaped grooves 170 arranged equidistantly along the axial direction of the outer serpentine pipe 17 and a plurality of grooves 171, and the plurality of second arc-shaped grooves 170 and the plurality of grooves 171 correspond one by one, and each second arc-shaped groove 170 is in communication with a groove 171.

[0025] The inner wall of the second arc-shaped groove 170 is provided with a rib wall, the rib wall is slidingly connected in the inner part of the groove 171, and the rib wall can slide transversely in the inner part of the groove 171, and the rib wall cooperates with the groove 171 to limit the inner serpentine pipe 16, so that the inner serpentine pipe 16 can only be bent in one direction.

[0026] The outer surface of the outer serpentine pipe 17 is provided with a coaxial sleeve 18, the end of the inner serpentine pipe 16 away from the handle 10 is provided with a first connecting piece 19, the outer wall of the first connecting piece 19 is symmetrically fixedly provided with a first clamping block 190, the side of the first connecting piece 19 away from the inner serpentine pipe 16 is provided with a connecting head 110, the side of the connecting head 110 facing the inner serpentine pipe 16 is formed with a second clamping block 1101, and the second clamping block 1101 abuts against the outer wall of the first clamping block 190, the side of the outer serpentine pipe 17 facing the connecting head 110 is provided with a limiting groove 112 matched with the first clamping block 190 and the second clamping block 1101, and the first clamping block 190 and the second clamping block 1101 are slidingly connected in the inner part of the limiting groove 112.

[0027] The first connecting piece 19 is provided with an electrotome 111 away from the inner serpentine pipe 16, which can cut the tissue in the body.

[0028] The handle 10 is provided with a bending assembly 20 for bending and deforming the inner serpentine pipe 16, thereby flexibly adjusting the cutting angle of the electrotome 111.

[0029] The bending assembly 20 comprises a sliding ring 21 slidingly connected to the surface of the T-shaped piece 15, and the axial direction of the sliding ring 21 is the same as that of the T-shaped piece 15, and the sliding ring 21 can slide transversely along the axial direction of the T-shaped piece 15, the outer wall of the sliding ring 21 is symmetrically fixedly provided with two driving blocks 22, the surface of the handle 10 is provided with sliding openings 23 matched with the driving blocks 22, and the driving blocks 22 are slidingly connected in the inner part of the sliding openings 23.

[0030] The surface of the handle 10 is provided with a threaded sleeve 24. The surface of the handle 10 has a positioning groove 25 for accommodating the threaded sleeve 24. The positioning groove 25 is connected to the slide 23. The threaded sleeve 24 is located inside the positioning groove 25. The inner wall of the threaded sleeve 24 has a threaded section. The driving block 22 is located inside the threaded end. When the threaded sleeve 24 rotates, it can push the driving block 22 to slide inside the slide 23.

[0031] A bearing 26 is fitted onto the surface of the T-shaped part 15, and one side of the bearing 26 abuts against the surface of the sliding ring 21, which can reduce the friction force on the sliding ring 21 when it slides. A nylon nut 27 is provided on the side of the bearing 26 away from the sliding ring 21, and the nylon nut 27 is installed on the surface of the T-shaped part 15, which can limit the sliding ring 21 and the bearing 26.

[0032] The handle 10 is provided with a rotating component 30, which enables the electric cutter 111 to rotate.

[0033] The rotating assembly 30 includes a rotating sleeve 31 disposed on the surface of the handle 10. An inner rotating block 32 is sleeved inside the rotating sleeve 31, and the rotating sleeve 31 can drive the inner rotating block 32 to rotate. An annular groove 33 is provided on the handle 10. The rotating sleeve 31 has ribs, and the ribs of the rotating sleeve 31 are slidably connected inside the annular groove 33. A second connecting piece 34 is fixed to the outer wall of the outer snake tube 17. Two third locking blocks 36 are symmetrically fixed to the outer wall of the second connecting piece 34. A receiving groove 35 is provided on the inner rotating block 32, and the third locking blocks 36 are located inside the receiving groove 35.

[0034] In use, plug the power cord 13 into the power supply, and then press the button 11 that turns on the PCBA control board 12. The conductive element 14 on the PCBA control board 12 contacts the inner snake tube 16. Since the inner snake tube 16, the outer snake tube 17, and the first connecting piece 19 are all conductive, while the connector 110 and the sleeve 18 are not conductive, when the inner snake tube 16 contacts the conductive element 14, the electric cutting blade 111 is energized and can cut tissue. When cutting tissue at different locations, the user can rotate the screw sleeve 24 to drive the drive block 22 to slide inside the slide 23. The drive block 22 drives the sliding ring 21 to slide on the surface of the T-shaped part 15. However, at this time, the sliding ring 21 and the bearing 26 are restricted by the nylon nut 27, which will drive... The T-shaped component 15 slides inside the handle 10, which in turn drives the inner snake tube 16 to slide into the handle 10, causing the inner snake tube 16 to bend. Since the inner snake tube 16 has an opening located at the section with the first arc-shaped groove 160, when the inner snake tube 16 bends, the section with the first arc-shaped groove 160 unfolds along the direction of the opening. At this time, the space of the first arc-shaped groove 160 is compressed, providing necessary buffer space for the bending action, ensuring a smooth and controllable bending process. The inner snake tube 16 abuts against the outer snake tube 17 via the first locking block 190. Simultaneously, the inner snake tube 16 forms an abutting engagement with the outer snake tube 17 through its own first locking block 190. Both block 190 and the second locking block 1101 on the outer snake tube are constrained by the limiting groove 112. This double limiting structure not only ensures the relative positional stability between the inner and outer snake tubes, but also forms a directional force transmission path during bending. When the inner snake tube 16 deforms, the second locking block 1101 applies a directional thrust to the outer snake tube 17, forcing the outer snake tube 17 to bend synchronously. The rib wall is limited by the groove 171, and can only slide along the extension path of the groove 171, fundamentally avoiding possible lateral displacement during bending. Furthermore, the second arc-shaped groove 170 also provides compression space for the bending of the outer snake tube 17, allowing the outer snake tube 17 to bend only in one direction, preventing displacement during bending. Because the inner snake bone tube 16 and the outer snake bone tube 17 have a double-layer structure, and both the inner snake bone tube 16 and the outer snake bone tube 17 form a skeleton, they can bend and also provide support. When the device is used for surgery, the inner snake bone tube 16 and the outer snake bone tube 17 can fix the angle of the electrosurgical knife during surgery, thereby avoiding the problem of tilting during electrosurgical knife surgery. The user can also rotate the rotating sleeve 31. The rotating sleeve 31 drives the second connecting piece 34 to rotate through the inner rotating block 32. The second connecting piece 34 drives the inner snake bone tube 16 to rotate through the outer snake bone tube 17. Since there is a bearing 26 between the nylon nut 27 and the sliding ring 21, the rotation of the inner snake bone tube 16 will not affect the sliding ring 21, thereby enabling the electrosurgical knife 111 to cut tissue at multiple angles.

[0035] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A bending compensation device for a high-frequency electrosurgical unit, characterized in that, Includes a handle (10), the surface of which is provided with a button (11), the inside of which is installed a PCBA control board (12) and a power cord (13), the surface of which is provided with a conductive element (14), the inside of which is installed with a T-shaped part (15), the inner wall of which is fixed with an inner snake bone tube (16), the outside of which is installed with an outer snake bone tube (17), the outside of which is installed with a coaxial sleeve (18), the end of which is away from the handle (10) of the inner snake bone tube (16) is provided with a first connecting piece (19), the first connecting piece (19) is away from the inner snake bone tube (16) and an electric cutting knife (111) is provided, the electric cutting knife (111) is capable of cutting tissue in the body; The handle (10) is provided with a bending component (20) for bending and deforming the inner snake tube (16).

2. The bending compensation device for a high-frequency electrosurgical unit according to claim 1, characterized in that, The surface of the inner snake tube (16) has a plurality of first arc-shaped grooves (160) arranged at equal intervals along its axial direction, providing the inner snake tube (16) with a certain bending space.

3. The bending compensation device for a high-frequency electrosurgical unit according to claim 1, characterized in that, The surface of the outer snake tube (17) has multiple second arc-shaped grooves (170) and grooves (171) arranged equidistantly along its axial direction. The second arc-shaped grooves (170) are connected to the grooves (171). The inner wall of the second arc-shaped groove (170) has ribs. The ribs are slidably connected inside the grooves (171) and can slide laterally inside the grooves (171). The inner snake tube (16) can be limited by the ribs cooperating with the grooves (171).

4. The bending compensation device for a high-frequency electrosurgical unit according to claim 1, characterized in that, The outer wall of the first connecting piece (19) is symmetrically fixed with a first locking block (190). A connector (110) is installed on the side of the first connecting piece (19) away from the inner snake tube (16). A second locking block (1101) is formed on the side of the connector (110) facing the inner snake tube (16). The second locking block (1101) abuts against the outer wall of the first locking block (190). A limiting groove (112) adapted to the first locking block (190) and the second locking block (1101) is opened on the side of the outer snake tube (17) facing the connector (110). The first locking block (190) and the second locking block (1101) are slidably connected inside the limiting groove (112).

5. The bending compensation device for a high-frequency electrosurgical unit according to claim 1, characterized in that, The bending assembly (20) includes a sliding ring (21) slidably connected to the surface of the T-shaped part (15), and the sliding ring (21) is axially aligned with the T-shaped part (15). The sliding ring (21) can slide laterally along the axial direction of the T-shaped part (15). Two drive blocks (22) are symmetrically fixed to the outer wall of the sliding ring (21). The surface of the handle (10) is provided with a sliding opening (23) that cooperates with the drive blocks (22), and the drive blocks (22) are slidably connected inside the sliding opening (23).

6. The bending compensation device for a high-frequency electrosurgical unit according to claim 5, characterized in that, The surface of the handle (10) is provided with a threaded sleeve (24). The surface of the handle (10) has a positioning groove (25) for accommodating the threaded sleeve (24), and the positioning groove (25) is connected to the slide (23). The threaded sleeve (24) is located inside the positioning groove (25). The inner wall of the threaded sleeve (24) has a threaded section, and the driving block (22) is located inside the threaded section. When the threaded sleeve (24) rotates, it can push the driving block (22) to slide inside the slide (23).

7. The bending compensation device for a high-frequency electrosurgical unit according to claim 6, characterized in that, The surface of the T-shaped part (15) is fitted with a bearing (26), and one side of the bearing (26) abuts against the surface of the sliding ring (21), which can reduce the friction force on the sliding ring (21) when it slides. A nylon nut (27) is provided on the side of the bearing (26) away from the sliding ring (21), and the nylon nut (27) is installed on the surface of the T-shaped part (15), which can limit the sliding ring (21) and the bearing (26).

8. The bending compensation device for a high-frequency electrosurgical unit according to claim 1, characterized in that, The handle (10) is provided with a rotating component (30), which includes a rotating sleeve (31) disposed on the surface of the handle (10). An inner rotating block (32) is sleeved inside the rotating sleeve (31), and the rotating sleeve (31) can drive the inner rotating block (32) to rotate.

9. A bending compensation device for a high-frequency electrosurgical unit according to claim 8, characterized in that, The handle (10) has an annular groove (33), the rotating sleeve (31) has a rib wall, and the rib wall of the rotating sleeve (31) is slidably connected to the inside of the annular groove (33).

10. A bending compensation device for a high-frequency electrosurgical unit according to claim 9, characterized in that, The outer wall of the outer snake bone tube (17) is fixed with a second connecting piece (34), and two third locking blocks (36) are symmetrically fixed on the outer wall of the second connecting piece (34). The inner rotating block (32) is provided with a receiving groove (35), and the third locking block (36) is located inside the receiving groove (35).

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