Surgical electrode knife head and surgical electrode knife thereof

Abstract

The utility model discloses a surgical electrode tool bit, which comprises a working section, a connecting section and a fixed section, the working section, the connecting section and the fixed section are sequentially connected, the working section is connected with the fixed section through the connecting section, a blade is arranged on the working section, a blade tip is arranged on the blade, and the blade tip is arranged on the blade through the design of the blade and a blade tip cutting edge. When the surgical electrode tool bit provided by the utility model is used for cutting, the electric energy can be concentrated near the cutting edge of the blade, and the converted heat energy can also be concentrated around the cutting edge of the blade. By means of the sharp cutting edge appearance and concentrated heat energy, human tissue can be easily cut open, the cutting efficiency is improved, and meanwhile a large amount of smoke cannot be generated due to willful spreading of heat.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a surgical electrode tip and a surgical electrode knife, which are applicable to laparoscopic surgeries in departments such as general surgery, hepatobiliary surgery, gynecology, and urology. Background Art

[0002] The electrocoagulation hook is generally used as an accessory consumable for high-frequency surgical equipment, and is used in conjunction with high-frequency surgical equipment, plasma surgical equipment, and a suction device, and is compatible with various high-frequency mainframes. It integrates many functions such as suction, electrosection, electrocoagulation, flushing, and dissection, and is mainly used in laparoscopic surgeries. The applicable departments include laparoscopic surgeries in general surgery, hepatobiliary surgery, gynecology, urology, etc. The tip of the existing electrocoagulation hook is mainly made by bending a cylindrical stainless steel wire. Its main disadvantages are that during cutting, the current of the cylindrical tip is disordered, the electric energy is not concentrated, and the heat energy is too dispersed, resulting in low cutting efficiency. At the same time, a large amount of smoke is generated and covers the surgical field of view. Content of the Utility Model

[0003] In view of the deficiencies in the prior art, the present utility model provides a surgical electrode tip and a surgical electrode knife.

[0004] The present utility model adopts the following technical solutions:

[0005] Provide a surgical electrode tip, including a working section, a connecting section, and a fixing section. The working section, the connecting section, and the fixing section are connected in sequence. The working section is connected to the fixing section through the connecting section. A cutting edge is provided on the working section, and a cutting edge tip is provided on the cutting edge.

[0006] Further, the working section on the surgical electrode tip is blade-shaped.

[0007] Further, a cutting edge is provided at the inner edge of the working section. A cutting edge tip is provided on the cutting edge. The cross-section of the working section provided with the cutting edge tip is polygonal. The whole surgical electrode tip is hook-shaped. The connecting section is curved. One end of the connecting section is connected to the fixing section, and the other end of the connecting section is connected to the working section. The included angle between the connecting section and the working section is 1° to 179°. The optimal angle range of the included angle between the connecting section and the working section is 45° to 135°. The optimal angle range of the included angle between the connecting section and the working section is 50° to 135°. From the perspective of direction A, the included angle β between the fixing section and the connecting section is 135° to 225°.

[0008] Further, the cutting edge is provided on one side of the working section bent towards the connecting section.

[0009] Further, the cross-section of the working section provided with the cutting edge tip is polygonal.

[0010] Further, a coating is provided on the area of the cutting edge tip of the working section. A coating is provided on all areas except the cutting edge tip on the working section, and no coating is provided on the cutting edge tip.

[0011] Further, a cutting edge is provided at the edge of the connecting section, and a cutting edge tip is provided on the cutting edge.

[0012] Further, a coating is provided on the connecting section. The surface of the fixing section is entirely coated or a part of the fixing section is coated. A coating is provided on all areas except the cutting edge tip on the working section, and no coating is provided on the cutting edge tip.

[0013] Further, a coating is provided on all areas of the working section except the cutting edge tip on the working section.

[0014] Further, the coating is sprayed with a ceramic coating, an oil-based coating, and / or an inorganic nano-coating.

[0015] Further, the working section, the connecting section, and the fixing section are integrally formed.

[0016] Further, the material of the tool tip is made of a metal material.

[0017] Further, the thickness of the cutting edge tip is 5 μm to 300 μm.

[0018] Further, the working section can be bent or folded at any angle in a three-dimensional space (three-dimensional coordinates) with the connection point of the connecting section and the working section as the origin (fixed point).

[0019] The present utility model further provides a surgical electrode knife, including an electrocoagulation hook main body, characterized in that a tool bar is provided at the output end of the electrocoagulation hook main body, and the surgical electrode tool tip and an insulating fixing head are provided at the end of the tool bar. The surgical electrode tool tip is connected to the tool bar, and an insulating fixing head is provided at the connection between the surgical electrode tool tip and the tool bar.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] Through the design of the cutting edge and the cutting edge tip of the cutting edge, when using the surgical electrode tool tip provided by the present utility model for cutting, electric energy can be concentrated near the cutting edge of the cutting edge, and the converted heat energy can also be concentrated around the cutting edge of the cutting edge. The relatively sharp cutting edge shape and the concentrated heat energy can easily cut through human tissues, improve the cutting efficiency, and at the same time, a large amount of smoke will not be generated due to the wanton spread of heat.

[0022] The surgical electrode provided with the surgical electrode blade head of the present utility model makes the current of the blade head more concentrated, avoiding the problems of current disorder and non-concentrated electric energy, with concentrated heat energy, less surgical smoke, high efficiency in stripping human tissues, and avoiding the problem of a large amount of smoke interfering with the surgical field.

[0023] For the surgical electrode blade head of the present utility model, the thickness range set at the tip of its blade is 5 μm to 300 μm (μm is micrometer), ensuring a relatively large current density during use and improving the smoothness of cutting.

[0024] For the surgical electrode blade head of the present utility model, the included angle between the upper inclined surface and the lower inclined surface of the blade is designed to be 17° to 60°. The included angle between the upper inclined surface and the lower inclined surface of the blade of the surgical electrode blade head can also be 10° to 85°. The angles within this range can ensure the strength of the cutting edge and the concentrated release of current during cutting. Brief Description of the Drawings

[0025] Figure 1 It is a three-dimensional schematic diagram of the single-edge blade head of the surgical electrode blade head of the present utility model.

[0026] Figure 2 It is a structural schematic diagram of the single-edge blade head of Embodiment 1 of the surgical electrode blade head of the present utility model.

[0027] Figure 3 It is a structural schematic diagram of the assembly of the single-edge blade head and the insulating fixing head of the surgical electrode blade head of the present utility model.

[0028] Figure 4 It is a three-dimensional schematic diagram of the double-edge blade head of the surgical electrode blade head of the present utility model.

[0029] Figure 5 It is a structural schematic diagram of the double-edge blade head of Embodiment 2 of the surgical electrode blade head of the present utility model.

[0030] Figure 6 It is a planar schematic diagram of the A perspective of the surgical electrode blade head of the present utility model.

[0031] Figure 7 It is a structural schematic diagram of different angular states of the connection section and the working section of the surgical electrode blade head of the present utility model.

[0032] Figure 8 It is a structural schematic diagram of the dagger-shaped blade head of Embodiment 3 of the surgical electrode blade head of the present utility model.

[0033] Figure 9 It is a structural schematic diagram of the surgical electrode of the present utility model.

[0034] Figure 10It is a schematic structural view of the shovel-shaped cutter head of Embodiment 4 of the surgical electrode cutter head described in the present utility model.

[0035] Figure 11 It is a schematic structural view of the cross-section at the blade tip B-B of the single-edge cutter head working section of Embodiment 1 of the surgical electrode cutter head described in the present utility model.

[0036] Figure 12 It is a schematic structural view of the cross-section at the blade tip C-C of the double-edge cutter head working section of Embodiment 2 of the surgical electrode cutter head described in the present utility model.

[0037] In the drawings: 1 - working section; 2 - connecting section; 3 - fixing section; 4 - blade; 5 - blade tip; 6 - electrocoagulation hook body; 7 - cutter bar; 8 - insulating fixing head; 9 - surgical electrode cutter head; 10 - inclined surface on the blade; 11 - inclined surface under the blade. Detailed implementation manners

[0038] The present utility model will be further described below in conjunction with the detailed implementation manners. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0039] As Figures 1 to 8 shown, a surgical electrode cutter head 9 includes a working section 1, a connecting section 2 and a fixing section 3. The working section 1, the connecting section 2 and the fixing section 3 are connected in sequence. The cutter head working section 1 is sheet-shaped. The working section 1 is connected to the fixing section through the connecting section 2. A blade 4 is provided on the working section 1, and a blade tip 5 is provided on the blade 4. Embodiment

[0040] As Figure 1 、 2 shown, the whole cutter head is in a hook shape. The connecting section 2 is curved. One end of the connecting section 2 is connected to the fixing section, and the other end of the connecting section 2 is connected to the working section 1. As Figure 7 shown, from the perspective perpendicular to the paper surface, the included angle between the connecting section 2 and the working section 1 is 45° - 135°. The blade 4 is provided on one side of the working section 1 bent towards the connecting section 2, forming a cutter head in the shape of a single-edge hooked cutter head.

[0041] As Figure 5 and 6As shown, from the perspective of direction A (side view), that is, looking in the direction parallel to the paper surface, the included angle β between the fixed section 3 and the connecting section 2 is 135° - 225°, or the included angle range between the connecting section 2 and the extension line of the fixed section 3 can also be -45° - +45°.

[0042] As Figure 11 shown in [reference], the included angle between the upper inclined surface 11 and the lower inclined surface 12 of the blade is 17° - 60°. For the surgical electrode blade head design, the included angle between the upper inclined surface 11 and the lower inclined surface 12 of the blade can also be 10° - 85°. The angles within this range can ensure the strength of the incision and the concentrated release of current during cutting. The blade tip 5 is arranged at the connection of the upper inclined surface 11 and the lower inclined surface 12 of the blade.

[0043] As the second solution of the above embodiment, the connecting section 2 is linear, and the working section 1 is curved. The pattern of this solution is not shown in the drawings, and those skilled in the art can understand it with reference to the pattern in Embodiment 1.

[0044] As the third solution of the above embodiment, the connecting section 2 is curved, and the working section 1 is linear. The pattern of this solution is not shown in the drawings, and those skilled in the art can understand it with reference to the pattern in Embodiment 1.

[0045] As the fourth solution of the above embodiment, the connecting section 2 is curved, and the working section 1 is curved. The pattern of this solution is not shown in the drawings, and those skilled in the art can understand it with reference to the pattern in Embodiment 1. Embodiment

[0046] As Figure 4 shown, on the basis of Embodiment 1, blades 4 are provided on the outer peripheries of the working section 1 except for the end connected to the fixed section, forming a double - edged hook - shaped blade head, and blade tips 5 are provided on all the blades 4. The cross - section of the working section 1 is quadrilateral or rhombus or hexagon or polygon. The blade tip 5 can be arranged at the outer edge of the entire working section 1, or the blade tip 5 can also be arranged at a part of the outer edge of the working section 1.

[0047] As Figure 12 shown in [reference], the included angle between the upper inclined surface 11 and the lower inclined surface 12 of the blade is 34° - 120°. For the surgical electrode blade head design, the included angle between the upper inclined surface 11 and the lower inclined surface 12 of the blade can also be 20° - 170°. The angles within this range can ensure the strength of the incision and the concentrated release of current during cutting. The blade tip 5 is arranged at the connection of the upper inclined surface 11 and the lower inclined surface 12 of the blade.

[0048] As the second solution of the above-described embodiment, the connecting section 2 is linear, and the working section 1 is curved. The pattern of this solution is not shown in the drawings, and those skilled in the art can understand it with reference to the pattern in Embodiment 2.

[0049] As the third solution of the above-described embodiment, the connecting section 2 is curved, and the working section 1 is linear. The pattern of this solution is not shown in the drawings, and those skilled in the art can understand it with reference to the pattern in Embodiment 2.

[0050] As the fourth solution of the above-described embodiment, the connecting section 2 is curved, and the working section 1 is curved. The pattern of this solution is not shown in the drawings, and those skilled in the art can understand it with reference to the pattern in Embodiment 2. Embodiment

[0051] As Figure 8 shown, the surgical electrode tip includes a working section 1, a connecting section 2, and a fixing section 3. The working section 1, the connecting section 2, and the fixing section 3 are connected in sequence. The working section of the tip is sheet-shaped. The working section 1 is connected to the fixing section through the connecting section 2. A cutting edge 4 is provided on the working section 1. A cutting edge tip 5 is provided on the cutting edge 4. The connecting section 2 is linear, and the working section 1 is dagger-shaped. Embodiment

[0052] As Figure 10 shown, a cutting edge is provided at the edge of the working section. A cutting edge tip is provided on the cutting edge. In this embodiment, the shape presented by the working section includes but is not limited to circular, elliptical, quadrilateral, polygonal, shovel-shaped, and irregular shapes. Only the schematic diagram of the shovel shape is shown in the drawings, and other shapes are not shown. Embodiment

[0053] In Embodiments 1-4, a coating is provided on the area other than the cutting edge tip 5 on the working section 1, and no coating is provided on the cutting edge tip 5 for surgical cutting.

[0054] As a further improvement of the above-described embodiment, the coating is sprayed with a ceramic coating, an oil-based coating, or an inorganic nano-coating.

[0055] As the second solution of the above-described embodiment, a coating is provided on the working section 1 and the connecting section 2.

[0056] As the third solution of the above-described embodiment, the entire surface of the fixing section 3 is provided with a coating and / or a part of the fixing section 3 is provided with a coating.

[0057] As the fourth solution of the above-described embodiment, a coating is provided on the area other than the cutting edge tip 5 on the working section 1, and no coating is provided on the cutting edge tip 5.

[0058] As the fifth solution of the above embodiments, the working section 1 is provided with a coating.

[0059] As the sixth solution of the above embodiments, the connecting section 2 is provided with a coating.

[0060] As the seventh solution of the above embodiments, the area of the working section 1 except at the cutting edge tip 5 of the working section 1 is provided with a coating.

[0061] As a further improvement of the above embodiment, the working section 1, the connecting section 2 and the fixing section 3 are integrally formed.

[0062] As a further improvement of the above embodiment, the cutter head material is made of metal material.

[0063] As a further improvement of the above embodiment, the thickness of the cutting edge tip 5 is 5 μm to 300 μm, and the best use effect of the thickness of the cutting edge tip 5 is 15 μm to 100 μm. Embodiment

[0064] In Embodiments 1 to 5, the cross-section of the position where the working section 1 is provided with the cutting edge tip 5 is pentagonal. The shape of the cross-section includes triangle, quadrilateral, pentagon, hexagon, polygon. The shape of the cross-section also includes regular or irregular shapes formed by one or more combinations of straight lines, curves, arc fillets, and chamfers. Embodiment

[0065] In Embodiments 1 to 6, a cutting edge 4 is also provided at the outer edge of the connecting section. The cutting edge 4 is provided with a cutting edge tip 5; alternatively, a cutting edge 4 is also provided at the outer or inner edge of the connecting section 2, and the cutting edge 4 is provided with a cutting edge tip 5. Embodiment

[0066] As Figure 3 and 9 shown, a surgical electrode knife includes an electrocoagulation hook body 6, characterized in that the output end of the electrocoagulation hook body 6 is provided with a cutter bar 7. The end of the cutter bar 7 is provided with a cutter head and an insulating fixing head 8. The cutter head is connected to the cutter bar 7, and an insulating fixing head 8 is provided at the connection between the cutter head and the cutter bar 7. The cutter head adopts the surgical electrode cutter head 9 described above.

[0067] Through the design of the cutting edge 4 and the cutting edge tip 5, when using the surgical electrode cutter head 9 provided by the present invention for cutting, electric energy can be concentrated near the cutting edge of the cutting edge 4, and the converted heat energy can also be concentrated around the cutting edge of the cutting edge 4. The relatively sharp cutting edge shape and the concentrated heat energy can easily cut through human tissues, improve the cutting efficiency, and at the same time, a large amount of smoke will not be generated due to the wanton spread of heat.

[0068] The surgical electrode provided with the surgical electrode blade head 9 of the present utility model makes the current of the blade head more concentrated, avoiding the problems of current disorder and non-concentrated electric energy, with concentrated heat energy, less surgical smoke, high efficiency in peeling human tissues, and avoiding the problem of a large amount of smoke interfering with the surgical field of view.

[0069] The thickness range of the blade tip 5 of the surgical electrode blade head 9 of the present utility model is 15 μm to 100 μm (μm is micrometer), ensuring a relatively large current density during use and improving the smoothness of cutting.

[0070] The included angle between the inclined surface above the blade 4 and the inclined surface below the blade 4 of the surgical electrode blade head 9 of the present utility model is designed to be 17° to 60°. The cutting effect is better within the range of 17° to 30° in this range, which can ensure the strength of the incision and the concentrated release of current during cutting.

[0071] Obviously, the above embodiments are merely examples for clearly illustrating the technical solutions of the present utility model, rather than limitations on the implementation manners of the present utility model. The above-mentioned connection manners: movable connection, fixed connection, connected, joined, connected, etc. are all one or more of welding, bolt connection, riveting, embedded connection, hinge connection or pin connection, etc. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the scope of the present utility model.

Claims

1. A surgical electrode head, comprising a working section, a connecting section and a fixing section, wherein the working section, the connecting section and the fixing section are connected in sequence, characterized in that: The working section is connected to the fixed section via a connecting section, a blade is provided on the working section, and a blade tip is provided on the blade; The inner edge of the working section is provided with a blade, the blade is provided with a blade tip, and the cross section of the working section provided with the blade tip is polygonal; The surgical electrode tip is hook-shaped as a whole, the connecting section is curved, one end of the connecting section is connected to the fixed section, and the other end of the connecting section is connected to the working section. The angle between the connecting section and the working section is 45°~135°, and the angle β between the fixed section and the connecting section in the A direction viewing angle is 135°~225°.

2. The surgical electrode tip according to claim 1, characterized in that: The connecting section is provided with a coating.

3. The surgical electrode tip according to claim 1, characterized in that: The entire surface of the fixing section is provided with a coating and / or a portion of the fixing section is provided with a coating.

4. The surgical electrode tip according to claim 1, characterized in that: The working section is provided with a coating in all areas except the tip of the blade on the working section.

5. The surgical electrode tip according to any one of claims 2 to 4, characterized in that: The coating is sprayed with ceramic coating, oily coating or inorganic nano coating.

6. The surgical electrode tip according to claim 1, characterized in that: The thickness of the blade tip is 5 μm to 300 μm.

7. A surgical electrode knife comprising the surgical electrode knife head according to any one of claims 1 to 4 and 6, comprising an electrocoagulation hook body, characterized in that: The output end of the electrocoagulation hook body is provided with a knife rod, the end of the knife rod is provided with a surgical electrode knife head and an insulating fixing head, the surgical electrode knife head is connected to the knife rod, and the connection between the surgical electrode knife head and the knife rod is provided with an insulating fixing head.

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