Edge electrode scalpel

Abstract

The invention relates to an edged electrode scalpel, relates to the technical field of scalpels, and aims to solve the problem that a scalpel head of a traditional high-frequency electrotome is wide and blunt and is prone to adhesion to tissues. The edged electrode scalpel comprises a scalpel handle and a scalpel edge arranged at one end of the scalpel handle, and the other end of the scalpel handle is provided with an electrified wire. Cutting edges are formed in the two sides of the cutting edge, and an anti-sticking layer is arranged on the surface of the cutting edge. The tool bit has the effect of reducing tissue adhesion to the tool bit.

Description

Technical Field

[0001] The present application relates to the technical field of surgical knives, and in particular to a sharp-edged electrode surgical knife. Background Art

[0002] Due to the characteristics of scalpel operation, traditional surgery also causes great trauma to patients during treatment, with disadvantages such as large wounds, heavy bleeding, long operation time, and slow recovery. Therefore, the application of minimally invasive surgical instruments has fostered the development of "minimally invasive surgery".

[0003] Minimally invasive surgery causes only minor trauma to the patient during the surgical treatment process and leaves only minor scars after surgery. Compared with traditional surgery, it has the advantages of small incisions, less bleeding, shorter operation time, less postoperative pain, and faster recovery. High-frequency electrosurgical knife is a widely used minimally invasive surgical instrument. It is used to replace traditional mechanical scalpels for tissue cutting and coagulation.

[0004] With respect to the above-mentioned related technologies, the inventors found that the blade of the traditional high-frequency electric knife is wide and blunt and easily adheres to tissues, so there is room for improvement. Summary of the invention

[0005] In order to improve the problem that the blade of a traditional high-frequency electric knife is wide and blunt and easily adheres to tissues, the present application provides a sharp-edged electrode surgical knife.

[0006] The present application provides a sharp electrode scalpel adopting the following technical solution: A sharp-edged electrode surgical knife comprises a handle and a blade arranged at one end of the handle, wherein the other end of the handle is provided with a conducting wire; cutting edges are arranged on both sides of the blade, and an anti-sticking layer is arranged on the surface of the blade.

[0007] By adopting the above technical solution, the front end of the blade is sharpened, so that the current of the electrode scalpel instantly releases a large amount of heat and extremely high temperature at the blade edge, and the waveform formed is denser and more energy concentrated, so that lower power output can be used to achieve the required electric cutting effect, thereby achieving the electric cutting power output of the scalpel to be controlled at 10 to 20W, effectively reducing the thermal radiation effect of the scalpel on the surrounding healthy tissues, reducing secondary injuries, and shortening the patient's postoperative recovery time; the anti-sticking layer plays an anti-adhesion, high temperature resistance and carbonization effect in the process of the blade cutting tissue, further reducing the phenomenon of the blade adhering to the tissue.

[0008] Preferably, the cutting edge angles on both sides of the blade are 30°.

[0009] By adopting the above technical solution, a 30° cutting edge is selected. This cutting edge effectively increases the sharpness of the blade, achieves a good electric cutting effect, and ensures the stable strength of the blade.

[0010] Preferably, the lengths of the cutting edges on both sides of the blade are 8 mm respectively, the width of the cutting edge on one side of the blade is 1.02 mm, and the end of the blade away from the handle is in a fan shape with a diameter of 2.4 mm.

[0011] By adopting the above technical solution, it does not affect the doctor's use, and ensures the structural strength of the blade and the effective cutting range. The sharpened part at the rear end of the blade increases the structural strength of the sharpened part, and the unsharpened part in the middle of the blade has the same effect as the unsharpened part at the rear end.

[0012] Preferably, the knife handle includes a fixing rod and a threaded sleeve threadedly connected to the fixing rod; the fixing rod is connected to the electric wire, and a knife rod detachably connected to the knife handle is provided at the end of the knife blade facing the knife handle, a positioning groove for the knife rod to be pressed into, and a clamping block is provided at the end of the knife rod away from the knife blade, a clamping groove for the clamping block to be pressed into the positioning groove is provided inside the positioning groove, and a magnetic part for adsorbing the clamping block is provided inside the clamping groove; an installation opening for the knife rod to pass through is provided at the end of the threaded sleeve away from the fixing rod, and a limiting ring that presses against the inner side wall of the threaded sleeve is provided on the peripheral wall of the knife rod.

[0013] By adopting the above technical scheme, the knife rod of the blade is pushed into the inside of the positioning groove, the magnetic part and the clamping block are magnetically attracted, and the clamping block is quickly fixed in the inside of the clamping groove. On the one hand, the knife rod is quickly fixed and accurately positioned, so as to facilitate the subsequent assembly of the knife handle; on the other hand, the clamping block is pressed against the inner side wall of the clamping groove, which limits the rotation of the knife rod in the positioning groove, reduces the phenomenon that the blade rotates with the knife rod during the installation of the threaded sleeve, and ensures the convenience of assembling the scalpel; finally, the threaded sleeve is used to press the limit ring against the fixed rod, so as to achieve the rapid assembly of the scalpel; and the blade can be replaced by disassembling the fixed rod and the threaded sleeve, so that when the blade becomes blunt or sticky during use, the blade can be easily replaced, thereby ensuring the sharpness of the scalpel and the ability to prevent tissue adhesion.

[0014] Preferably, a fastening assembly for limiting loosening of the threaded sleeve is provided on the fixing rod.

[0015] By adopting the above technical solution, the fastening component limits the rotation of the threaded sleeve, thereby ensuring the connection stability between the threaded sleeve and the fixed rod, and reducing the phenomenon of loosening of the threaded sleeve and thus the loosening of the blade during the use of the scalpel.

[0016] Preferably, the fastening assembly comprises a driving sleeve, a clamping ring and several groups of fastening rods; the driving sleeve is threadedly connected to the peripheral wall of the fixed rod, and the driving sleeve is located on the side of the threaded sleeve facing the electric wire; the clamping ring is rotatably arranged on the side wall of the driving sleeve facing the threaded sleeve, and a sliding ring groove for the clamping ring to be inserted into the peripheral wall of the fixed rod is provided, the clamping ring and the sliding ring groove are adapted to each other, and the clamping ring can be moved along the length direction of the sliding ring groove; all the fastening rods are arranged on the side wall of the clamping ring facing the threaded sleeve, and all the fastening rods are distributed at intervals along the circumference of the clamping ring, and the side wall of the threaded sleeve facing the clamping ring is provided with several groups of fastening grooves for the fastening rods to be inserted into.

[0017] By adopting the above technical solution, after the threaded sleeve is installed, the driving sleeve is rotated, and the threaded transmission between the driving sleeve and the fixed rod is utilized to make the driving sleeve gradually approach the threaded sleeve along the length direction of the fixed rod; during the movement of the driving sleeve, the clamping ring is driven to gradually approach the threaded sleeve along the radial direction of the sliding ring groove, so that the fastening rod gradually presses into the fastening groove, thereby limiting the rotation of the threaded sleeve and ensuring the stability of the threaded sleeve after installation; in addition, when the blade needs to be replaced, the driving sleeve is reversed, so that the driving sleeve drives the clamping ring and the fastening rod to gradually move away from the threaded sleeve, that is, the fastening rod gradually disengages from the fastening groove, so as to facilitate driving the threaded sleeve to reverse, thereby realizing the replacement of the blade.

[0018] Preferably, a heating component for heating the blade is provided on the fixing rod.

[0019] By adopting the above technical solution, the heating component heats the blade so that the blade is kept at a certain temperature. Due to the high temperature of the blade surface, the tissue at the site of surgery using the blade is not easily adhered, and it has a good bactericidal effect. At the same time, no smoke is generated when the blade cuts the tissue, and the hemostatic performance is good, thereby preventing bleeding and infection at the surgical site caused by adhesion of tissue at the surgical site.

[0020] Preferably, the heating assembly comprises a heating element and an air delivery element; an air inlet pipe and an air outlet pipe are penetrated through the fixed rod, and the heating element is arranged inside the air inlet pipe to heat the gas inside the air inlet pipe; the air delivery element is connected and arranged on the air inlet pipe to transport gas to the inside of the air inlet pipe; a ventilation cavity is connected and opened inside the handle and the blade, and the ventilation cavity is connected to the air inlet pipe and the air outlet pipe.

[0021] By adopting the above technical scheme, the clamping block and the clamping groove are used to quickly locate the clamping connection between the knife rod and the fixed rod, so as to facilitate the rapid alignment and connection of the air inlet pipe, the air outlet pipe and the ventilation cavity; the air is continuously transported to the inside of the air inlet pipe by the air conveying component, and the gas inside the air inlet pipe is heated by the heating component, so that the air inlet pipe is used to continuously provide high-temperature gas to the inside of the ventilation cavity, and the heat transfer between the high-temperature gas and the blade is utilized, and the gas after the heat transfer is discharged through the air outlet pipe, so as to ensure that the blade is in a certain temperature state, and realize stable and continuous heating and stable maintenance of the blade.

[0022] Preferably, a knife storage seat is provided on one side of the knife handle, a mounting groove is provided on the top wall of the knife storage seat, a mounting plate covering the mounting groove is provided on the knife storage seat, a plurality of placement grooves for the knife rod to be inserted are provided on the mounting plate, and a passage opening for the blade to pass through is formed on the bottom wall of each group of placement grooves of the mounting plate; a sterilization component for sterilization is provided inside the mounting groove.

[0023] By adopting the above technical solution, the blade to be used is inserted into the passage, and the guide rod is pushed into the placement groove, so that the blade is suspended in the installation groove using the mounting plate, and the inside of the installation groove is continuously sterilized using the sterilization component, thereby achieving the sterilization and heating effects on the blade to be used, and ensuring the sterile state of the blade when the scalpel needs to be replaced later.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. By sharpening the front end of the blade, the current at the edge can release more heat, achieving the effect of low-power output and high-efficiency tissue cutting, and reducing the adhesion of human tissue; in addition, the anti-adhesion layer plays an anti-adhesion, high temperature and carbonization effect during the process of the blade cutting tissue, further reducing the phenomenon of the blade head adhering to the tissue; 2. By setting a fastening component to limit the rotation of the threaded sleeve, the connection stability between the threaded sleeve and the fixed rod is guaranteed, and the phenomenon of loosening of the threaded sleeve and the blade during the use of the scalpel is reduced; 3. The blade is heated by setting a heating component so that the blade is kept at a certain temperature. Due to the high temperature of the blade surface, the tissue at the site where the blade is used for surgery is not prone to adhesion and has a good sterilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a sharp-edged electrode scalpel in Example 1 of the present application.

[0026] Figure 2 It is a structural schematic diagram of a sharp-edged electrode scalpel in Example 2 of the present application.

[0027] Figure 3 It is a cross-sectional schematic diagram of the internal structure of the scalpel of Example 2 of the present application.

[0028] Figure 4 It is an exploded schematic diagram of the connection relationship between the handle and the blade of Example 2 of the present application.

[0029] Figure 5 It is a schematic diagram of the structure of the knife storage seat of Example 2 of the present application.

[0030] Figure 6 It is a cross-sectional schematic diagram of the internal structure of the knife storage holder of Example 2 of the present application.

[0031] Description of reference numerals: 1. Knife handle; 10. Electric wire; 11. Fixing rod; 111. Positioning groove; 112. Snap-on groove; 113. Magnetic part; 114. Sliding ring groove; 115. Air inlet pipe; 116. Air outlet pipe; 12. Threaded sleeve; 121. Mounting port; 122. Fastening groove; 2. Blade; 21. Cutting edge; 22. Anti-sticking layer; 23. Knife rod; 231. Snap-on block; 232. Limiting ring; 24. Ventilation cavity; 3. Fastening assembly; 31. Drive sleeve; 32. Snap-on ring; 33. Fastening rod; 4. Heating assembly; 41. Heating element; 42. Air delivery element; 5. Knife storage seat; 51. Mounting groove; 511. Sterilization element; 6. Mounting plate; 61. Placement groove; 611. Passageway. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] The embodiment of the present application discloses a sharp-edged electrode surgical knife, which is used to reduce the phenomenon of the blade tip adhering to tissue.

[0034] Embodiment 1: Reference Figure 1 A sharp electrode surgical knife comprises a handle 1 and a blade 2 mounted on one end of the handle 1, and a conducting wire 10 is mounted on the other end of the handle 1 for providing current. Both sides of the end of the blade 2 away from the handle 1 are sharpened to form a cutting edge 21, and the surface of the blade 2 is coated with an anti-sticking layer 22 formed by a ceramic coating.

[0035] Reference Figure 1 In this embodiment, the angle of the cutting edge 21 on both sides of the blade 2 is 30°; the length of the cutting edge 21 on both sides of the width direction of the blade 2 is 8 mm, and the width of the cutting edge 21 on one side of the blade 2 is 1.02 mm, and the end of the blade 2 away from the handle 1 is generally in the shape of a fan with a diameter of 2.4 mm.

[0036] The implementation principle of a sharp electrode scalpel in the embodiment of the present application is: At the cutting edge 21 of the blade 2, the electric current releases a large amount of heat and temperature, forming concentrated waveform-intensive energy, effectively reducing the thermal radiation effect of the scalpel on the surrounding healthy tissue; at the same time, the anti-sticking layer 22 plays an anti-adhesion, high temperature resistance and carbonization effect during the process of the blade 2 cutting tissue, further reducing the phenomenon of the blade head adhering to the tissue.

[0037] Embodiment 2: The difference between Example 2 and Example 1 is that: Figure 2 and Figure 3 The handle 1 includes a fixing rod 11 and a threaded sleeve 12 threadedly connected to the fixing rod 11, and the fixing rod 11 is electrically connected to the electric wire 10. The end of the blade 2 facing the handle 1 is integrally formed with a knife rod 23, and the knife rod 23 is detachably connected to the handle 1.

[0038] Reference Figure 2 and Figure 3 The end wall of the fixed rod 11 is provided with a positioning groove 111 for the knife rod 23 to be inserted into, and the end of the knife rod 23 away from the blade 2 is fixedly connected with a clamping block 231. In this embodiment, the clamping block 231 is prismatic. The bottom wall of the positioning groove 111 is provided with a clamping groove 112 for the clamping block 231 to be inserted into, and the clamping block 231 and the clamping groove 112 are adapted to each other to limit the guide rod from rotating inside the positioning groove 111. The bottom wall of the connection groove is fixedly connected with a magnetic member 113. In this embodiment, the magnetic member 113 can be a magnet, and the clamping block 231 is made of an iron material that can be adsorbed by a magnet.

[0039] Reference Figure 3 and Figure 4 A limiting ring 232 is integrally formed on the peripheral wall of the knife bar 23, and the side wall of the limiting ring 232 facing the fixed rod 11 abuts against the end wall of the fixed rod 11, and the side wall of the limiting ring 232 facing away from the fixed rod 11 abuts against the inner side wall of the threaded sleeve 12, so that the limiting rod is stably pressed on the fixed rod 11 through the threaded sleeve 12. The end wall of the threaded sleeve 12 away from the fixed rod 11 is penetrated and provided with an installation opening 121, so that the end of the knife bar 23 away from the fixed rod 11 can pass through, so that the blade 2 is outside the fixed sleeve.

[0040] Reference Figure 3 and Figure 4 A fastening assembly 3 is installed on the fixing rod 11 to prevent the threaded sleeve 12 from loosening. The fastening assembly 3 includes a driving sleeve 31, a clamping ring 32 and a plurality of fastening rods 33; the driving sleeve 31 is threadedly connected to the outer peripheral wall of the fixing rod 11, and the driving sleeve 31 is located on the side of the threaded sleeve 12 facing the fixing rod 11.

[0041] Reference Figure 3 and Figure 4The clamping ring 32 is rotatably connected to the end wall of the driving sleeve 31 facing the threaded sleeve 12, and the inner ring of the clamping ring 32 is polygonal. The outer peripheral wall of the fixing rod 11 is recessed inward to form a sliding ring groove 114, and the clamping ring 32 is sleeved inside the sliding ring groove 114, and the inner peripheral wall of the clamping ring 32 and the inside of the sliding ring groove 114 are adapted to each other, so that the clamping ring 32 slides along the radial direction of the sliding ring groove 114.

[0042] Reference Figure 3 and Figure 4 All the fastening rods 33 are integrally formed on the end wall of the clamping ring 32 away from the driving sleeve 31, and all the fastening rods 33 are distributed at intervals along the circumference of the clamping ring 32. The end wall of the threaded sleeve 12 facing the clamping ring 32 is provided with a plurality of groups of fastening grooves 122, and the fastening grooves 122 are respectively arranged in a one-to-one correspondence with the fastening rods 33, so that the corresponding fastening rods 33 can be pressed into, thereby limiting the rotation of the threaded sleeve 12.

[0043] Reference Figure 2 and Figure 3 A heating assembly 4 is installed on the fixed rod 11 to heat and keep the blade 2 warm. The heating assembly 4 includes a heating element 41 and a gas delivery element 42; in this embodiment, the heating element 41 can be an electric heating wire, and the gas delivery element 42 can be a micro air pump. An air inlet pipe 115 and an air outlet pipe 116 connected to the outside are opened through the fixed rod 11, and the heating element 41 is fixedly connected to the inside of the air inlet pipe 115 to heat the gas inside the air inlet pipe 115.

[0044] Reference Figure 2 and Figure 3 The gas delivery member 42 is connected to the end of the gas inlet pipe 115 to deliver gas to the inside of the gas inlet pipe 115. In this embodiment, the gas inlet end of the gas delivery member 42 can be connected to a gas cylinder of an inert gas to deliver inert gas to the inside of the gas inlet pipe 115, and the inert gas is heated by the heating member 41.

[0045] Reference Figure 2 and Figure 3 The handle 1 and the blade 2 are both provided with interconnected ventilation cavities 24, and the air inlet pipe 115 and the air outlet pipe 116 are both connected to the ventilation cavity 24 to continuously transport heated gas to the inside of the ventilation cavity 24, so that the blade 2 maintains a certain temperature.

[0046] Reference Figure 5 and Figure 6 A knife storage seat 5 is installed on one side of the knife handle 1, and a mounting groove 51 is recessed on the top wall of the knife storage seat 5; a mounting plate 6 for closing the mounting groove 51 is installed inside the mounting groove 51, and a sterilization component 511 is installed on the bottom wall of the mounting groove 51. In this embodiment, the sterilization component 511 can be an ultraviolet lamp for sterilizing the inside of the mounting groove 51.

[0047] Reference Figure 5 and Figure 6 A plurality of groups of placement grooves 61 are provided on the top wall of the mounting plate 6 for the end of the knife bar 23 to be pressed against the blade 2. A through opening 611 is provided inside each group of placement grooves 61 for the blade 2 of the corresponding knife bar 23 to pass through and press against the inside of the mounting groove 51, so that the sterilization element 511 can sterilize the blade 2.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sharp electrode surgical knife, characterized in that: The knife comprises a handle (1) and a blade (2) arranged at one end of the handle (1); the other end of the handle (1) is provided with a conducting wire (10); cutting edges (21) are provided on both sides of the blade (2); and an anti-sticking layer (22) is provided on the surface of the blade (2).

2. The sharp-edged electrode surgical knife according to claim 1, characterized in that: The angles of the cutting edges (21) on both sides of the blade (2) are 30°.

3. The sharp-edged electrode surgical knife according to claim 1, characterized in that: The lengths of the cutting edges (21) on both sides of the blade (2) are 8 mm respectively, the width of the cutting edge (21) on one side of the blade (2) is 1.02 mm, and the end of the blade (2) away from the handle (1) is in a fan shape with a diameter of 2.4 mm.

4. The sharp-edged electrode surgical knife according to claim 1, characterized in that: The knife handle (1) comprises a fixing rod (11) and a threaded sleeve (12) threadedly connected to the fixing rod (11); the fixing rod (11) is connected to the electric wire (10); the end of the blade (2) facing the knife handle (1) is provided with a knife rod (23) detachably connected to the knife handle (1); the fixing rod (11) is provided with a positioning groove (111) for the knife rod (23) to be pressed into; the end of the knife rod (23) away from the blade (2) is provided with a clamping block (23 1), a clamping groove (112) for a clamping block (231) to abut against is provided inside the positioning groove (111), and a magnetic member (113) for adsorbing the clamping block (231) is provided inside the clamping groove (112); an installation opening (121) for a knife rod (23) to pass through is provided at the end of the threaded sleeve (12) away from the fixed rod (11), and a limiting ring (232) abutting against the inner wall of the threaded sleeve (12) is provided on the peripheral wall of the knife rod (23).

5. The sharp-edged electrode surgical knife according to claim 4, characterized in that: The fixing rod (11) is provided with a fastening assembly (3) for limiting the loosening of the threaded sleeve (12).

6. The sharp-edged electrode surgical knife according to claim 5, characterized in that: The fastening assembly (3) comprises a driving sleeve (31), a clamping ring (32) and a plurality of sets of fastening rods (33); the driving sleeve (31) is threadedly connected to the peripheral wall of the fixing rod (11), and the driving sleeve (31) is located on the side of the threaded sleeve (12) facing the electric wire (10); the clamping ring (32) is rotatably arranged on the side wall of the driving sleeve (31) facing the threaded sleeve (12), and a sliding ring groove (114) for the clamping ring (32) to abut against is provided on the peripheral wall of the fixing rod (11). The clamping ring (32) and the sliding ring groove (114) are adapted to each other, and the clamping ring (32) can move along the length direction of the sliding ring groove (114); all the fastening rods (33) are arranged on the side wall of the clamping ring (32) facing the threaded sleeve (12), and all the fastening rods (33) are distributed at intervals along the circumference of the clamping ring (32); and the side wall of the threaded sleeve (12) facing the clamping ring (32) is provided with a plurality of groups of fastening grooves (122) for the fastening rods (33) to be pressed into.

7. The sharp-edged electrode surgical knife according to claim 4, characterized in that: The fixing rod (11) is provided with a heating component (4) for heating the blade (2).

8. The sharp-edged electrode surgical knife according to claim 7, characterized in that: The heating assembly (4) comprises a heating element (41) and a gas delivery element (42); an air inlet pipe (115) and an air outlet pipe (116) are provided through the fixing rod (11); the heating element (41) is arranged inside the air inlet pipe (115) for heating the gas inside the air inlet pipe (115); the gas delivery element (42) is arranged on the air inlet pipe (115) for delivering gas to the inside of the air inlet pipe (115); a ventilation cavity (24) is provided inside the handle (1) and the blade (2); the ventilation cavity (24) is connected to the air inlet pipe (115) and the air outlet pipe (116).

9. The sharp-edged electrode surgical knife according to claim 4, characterized in that: A knife storage seat (5) is provided on one side of the knife handle (1), a mounting groove (51) is provided on the top wall of the knife storage seat (5), a mounting plate (6) covering the mounting groove (51) is provided on the knife storage seat (5), a plurality of groups of placement grooves (61) for the knife rod (23) to be inserted into are provided on the mounting plate (6), and a passage (611) for the blade (2) to pass through is provided on the bottom wall of each group of placement grooves (61) of the mounting plate (6); a sterilization member (511) for sterilization is provided inside the mounting groove (51).

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