Tungsten electrocoagulation hook, stainless steel electrocoagulation hook and medical electrocoagulation instrument

Abstract

The utility model aims to disclose a tungsten material electrocoagulation hook, a stainless steel material electrocoagulation hook and a medical electrocoagulation instrument, and relates to the technical field of surgical medical instruments, the tungsten material electrocoagulation hook comprises a first column body, a second column body and an arc-shaped bending part, and the first column body, the second column body and the arc-shaped bending part are of an integrally formed structure; the surface of the second column body comprises a first cambered surface, a first defect surface, a second defect surface and a second cambered surface; the first defect surface and the second defect surface are symmetrically arranged on the two sides of the axis section of the electrocoagulation hook, the first defect surface is a cambered surface or an inclined surface, and the second defect surface is a cambered surface or an inclined surface; the radian of the first cambered surface is 0-30 degrees, and the radian of the first cambered surface is smaller than that of the second cambered surface, and the electric coagulation hook has the technical effects that the first cambered surface forms a long and narrow cutting surface, so that the cutting electric energy is more concentrated on the long and narrow first cambered surface, and the cutting efficiency of the electric coagulation hook is greatly improved; a first defect surface, a second defect surface and a second cambered surface can be adopted as hemostatic surfaces.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical medical instruments, in particular to a tungsten electrocoagulation hook, a stainless steel electrocoagulation hook and a medical electrocoagulation instrument. Background Art

[0002] The electrocoagulation hook is a medical device used in electrocoagulation surgery. It uses electrical energy to melt or destroy tissue to achieve hemostasis, cutting, or resection. It features a simple structure, easy operation, and effective coagulation, making it widely used in surgical procedures.

[0003] Currently, the surface of the electrocoagulation hook is an arc surface, which is not sharp enough when cutting or removing tissue, thereby affecting the efficiency of the electrocoagulation hook in cutting or removing tissue.

[0004] In view of this, it is necessary to develop a tungsten electrocoagulation hook, a stainless steel electrocoagulation hook and a medical electrocoagulation device to solve the above problems. Summary of the Invention

[0005] In order to solve the above technical problems, the purpose of the present utility model is to disclose a tungsten electrocoagulation hook, a stainless steel electrocoagulation hook and a medical electrocoagulation device.

[0006] The first invention objective of the utility model is to provide a tungsten electrocoagulation hook.

[0007] The second invention object of the present utility model is to provide a medical electrocoagulation instrument.

[0008] The third invention objective of the present utility model is to provide an electrocoagulation hook made of stainless steel.

[0009] To achieve the first object of the invention, the present invention provides a tungsten electrocoagulation hook, comprising a first column, a second column, and an arc-shaped bending portion, wherein the first column, the second column, and the arc-shaped bending portion are an integrally formed structure;

[0010] The surface of the second cylinder includes a first arc surface, a first defective surface, a second defective surface and a second arc surface;

[0011] The first defect surface and the second defect surface are symmetrically arranged on both sides of the axial cross section of the electrocoagulation hook, the first defect surface is a curved surface or an inclined surface, and the second defect surface is a curved surface or an inclined surface;

[0012] The curvature of the first curved surface is 0°-30°, and the curvature of the first curved surface is smaller than that of the second curved surface.

[0013] Preferably, the first arc surface and the second arc surface are located on the same circular surface.

[0014] Preferably, the diameters of the first column and the second column are equal or unequal.

[0015] Preferably, the diameters of the first column and the second column are 0.8 mm to 3 mm, and the surface roughness of the first column and the second column is 0.01 μm to 0.4 μm.

[0016] Preferably, the length of the first arc surface is 2mm-10mm.

[0017] Preferably, the included angle between the first column and the second column is 60°-160°.

[0018] Based on the same inventive principle, in order to achieve the above-mentioned second invention purpose, the present invention provides a medical electrocoagulation instrument, including a handle portion and an electrocoagulation portion, wherein the electrocoagulation portion adopts the tungsten electrocoagulation hook described in the first invention.

[0019] Based on the same inventive principle, in order to achieve the third inventive object mentioned above, the present invention provides a stainless steel electrocoagulation hook, comprising a first column, a second column and an arc-shaped bending portion, wherein the first column, the second column and the arc-shaped bending portion are an integrally formed structure;

[0020] The surface of the second cylinder includes a first arc surface, a first defective surface, a second defective surface and a second arc surface;

[0021] The first defect surface and the second defect surface are symmetrically arranged on both sides of the axial cross section of the electrocoagulation hook, the first defect surface is a curved surface or an inclined surface, and the second defect surface is a curved surface or an inclined surface;

[0022] The curvature of the first curved surface is 0°-30°, and the curvature of the first curved surface is smaller than the curvature of the second curved surface;

[0023] The first arc surface and the second arc surface are on the same circular surface;

[0024] The diameters of the first cylinder and the second cylinder are equal or unequal;

[0025] The diameters of the first column and the second column are 0.8 mm to 3 mm.

[0026] Preferably, the length of the first arc surface is 2mm-10mm.

[0027] Preferably, the included angle between the first column and the second column is 60°-160°.

[0028] Compared with the prior art, the technical effects of this utility model are as follows:

[0029] (1) The first column of the present invention is installed on the handle part of the medical electrocoagulation instrument, and the second column is the electrocoagulation working part. The first defect surface and the second defect surface are formed on the second column by cutting or grinding. The first defect surface and the second defect surface are symmetrically arranged on both sides of the axial cross-section of the electrocoagulation hook. The first arc surface is located between the first defect surface and the second defect surface. The first arc surface forms a narrow and long cutting surface. Compared with the traditional electrocoagulation hook, the first arc surface of the present invention is narrow and long, and the cutting electric energy is more concentrated on the narrow and long first arc surface, which greatly improves the cutting efficiency of the electrocoagulation hook; in addition, when cutting is not required, the first defect surface, the second defect surface and the second arc surface can be used as hemostatic surfaces; the electrocoagulation hook of the present invention maintains the hemostatic function while improving the cutting efficiency.

[0030] (2) The electrocoagulation hook of the present invention is made entirely of tungsten, with a tungsten content of not less than 98wt%, and has strong toughness, less bleeding during cutting, quick hemostasis, and a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is the main view of the existing electrocoagulation hook.

[0033] Figure 2 It is the main view of the electric coagulation hook of the utility model.

[0034] Figure 3 This utility model Figure 2 Cross-sectional view at AA.

[0035] Figure 4 This utility model Figure 2 Cross-sectional view at AA.

[0036] Figure 5 It is a front view of the medical electrocoagulation instrument of the present utility model.

[0037] Among them, 1. first cylinder; 2. second cylinder; 21. first arc surface; 22. first defect surface; 23. second defect surface; 24. second arc surface; 25. end; 3. arc-shaped bending part; 4. handle part; 5. electrocoagulation part. DETAILED DESCRIPTION

[0038] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0040] Example 1

[0041] Ginseng Figures 2 to 4 As shown, this embodiment discloses a specific implementation of a tungsten electrocoagulation hook.

[0042] Tungsten electrocoagulation hook, see Figures 2 to 4 The present invention provides a tungsten electrocoagulation hook, comprising a first column 1, a second column 2 and an arc-shaped bending portion 3, wherein the first column 1, the second column 2 and the arc-shaped bending portion 3 are an integrally formed structure; the surface of the second column 2 comprises a first arc surface 21, a first defective surface 22, a second defective surface 23 and a second arc surface 24, wherein the first arc surface 21 faces the tissue to be cut; the first defective surface 22 and the second defective surface 23 are symmetrically arranged on both sides of the axial cross-section of the electrocoagulation hook, and the position of the axial cross-section is shown in FIG. Figure 3 or Figure 4 In the cross-section L shown, the first defect surface 22 is a curved surface or an inclined surface, and the second defect surface 23 is a curved surface or an inclined surface; the curvature of the first curved surface 21 is 0°-30°, and the curvature of the first curved surface 21 is smaller than the curvature of the second curved surface 24; the end 25 of the second cylinder 2 is rounded to prevent the sharp edge of the end 25 from directly scratching organs and blood vessels. The rounded end 25 facilitates blunt separation of tissues during surgery and facilitates insertion into tissue gaps.

[0043] Specifically, Figure 1The existing electric coagulation hook is made of stainless steel, and its surface is all arc surfaces with equal radius, which is not sharp enough, affecting the efficiency of the electric coagulation hook in cutting or removing tissue. In order to improve the cutting efficiency of the electrocoagulation hook, the following technical solutions are adopted: (1) The electrocoagulation hook of this embodiment is made of tungsten as a whole, that is, the first cylinder 1, the second cylinder 2 and the arc-shaped bending part 3 are all made of tungsten, and the tungsten content in the tungsten material is not less than 98wt%, which has strong toughness, less bleeding during cutting, fast hemostasis and longer service life; (2) The first arc surface 21 and the second arc surface 24 of this embodiment are on the same circular surface, the diameters of the first cylinder 1 and the second cylinder 2 are equal or unequal, the diameter R1 of the first cylinder 1 and the second cylinder 2 is 0.8mm-3mm, and the second cylinder 2 with a diameter R1 of 0.8mm is suitable for pediatric laparoscopic surgery, the length M of the first arc surface 21 is 2mm-10mm, the angle a between the first cylinder 1 and the second cylinder 2 is 60°-160°, and 90° is preferred in this embodiment, the curvature b of the first arc surface 21 is 0°-30°, and the first arc surface 2 1 has a curvature smaller than that of the second curved surface 24. The first curved surface 21 forms a narrow and long cutting surface. Compared with the traditional electrocoagulation hook, the first curved surface of this embodiment is narrow and long, especially when the curvature of the first curved surface 21 is 0°-10°, such as 0° forming a sharp blade, the cutting electric energy is more concentrated on the narrow and long first curved surface 21, which greatly improves the cutting efficiency of the electrocoagulation hook; in addition, the curvature of the first curved surface 21 is smaller than or much smaller than the curvature of the second curved surface 24. The curvature c of the second curved surface 24 is preferably 90°-180°. When cutting is not required, the first defect surface 22, the second defect surface 23 and the second curved surface 24 can be used as hemostatic surfaces. The first defect surface 22, the second defect surface 23 and the second curved surface 24 occupy the vast majority of the second cylinder 2. The electrocoagulation hook of this embodiment maintains the hemostatic function while improving the cutting efficiency; (3) The first defect surface 22 is a curved surface or an inclined surface, and the second defect surface 23 is a curved surface or an inclined surface. See the inclined surface for details. Figure 3 ; See Figure 4 When both the first defect surface 22 and the second defect surface 23 are arc surfaces, the radius of the first defect surface 22 and the second defect surface 23 is much larger than the radius of the first arc surface 21. At this time, the cross-section of the second column 2 is teardrop-shaped, and the surface area of ​​the first defect surface 22 and the second defect surface 23 is larger, ensuring the hemostasis area; (4) The surface roughness of the first column 1 and the second column 2 is 0.01μm-0.4μm. The smaller the surface roughness, the less likely the surface of the second column 2 is to adhere to the tissue, and the less thermal damage.

[0044] Example 2

[0045] Ginseng Figures 2 to 4 As shown, this embodiment discloses a specific implementation of a tungsten electrocoagulation hook.

[0046] Stainless steel electrocoagulation hook, see Figures 2 to 4 The present invention provides a stainless steel electrocoagulation hook, comprising a first column 1, a second column 2 and an arc-shaped bending portion 3. The first column 1, the second column 2 and the arc-shaped bending portion 3 are an integrally formed structure; the surface of the second column 2 comprises a first arc surface 21, a first defective surface 22, a second defective surface 23 and a second arc surface 24; the first defective surface 22 and the second defective surface 23 are symmetrically arranged on both sides of the axial cross-section of the electrocoagulation hook, and the position of the axial cross-section is shown in FIG. Figure 3 or Figure 4 In the cross section L shown, the first defective surface 22 is a curved surface or an inclined surface, and the second defective surface 23 is a curved surface or an inclined surface; the curvature of the first curved surface 21 is 0°-30°, and the curvature of the first curved surface 21 is shown in FIG. Figure 3 or Figure 4 The curvature of the first arc surface 21 is smaller than or much smaller than the curvature of the second arc surface 24. The curvature of the second arc surface 24 is shown in FIG. Figure 3 or Figure 4 Angle c; the first arc surface 21 and the second arc surface 24 are on the same circular surface; the diameters of the first cylinder 1 and the second cylinder 2 are equal or unequal; the diameter of the first cylinder 1 and the second cylinder 2 is 0.8mm-3mm, see diameter Figures 2 to 4 The length of the first arc surface 21 is 2mm-10mm, see Figure 2 The angle between the first cylinder 1 and the second cylinder 2 is 60 ° -160 °, see Figure 2 Angle a.

[0047] Specifically, Figure 1The existing electric coagulation hook is made of stainless steel, and its surface is all arc surfaces with equal radius, which is not sharp enough, affecting the efficiency of the electric coagulation hook in cutting or removing tissue. In order to improve the cutting efficiency of the electric coagulation hook, the following technical solutions are adopted: (1) The second cylinder 2 with a diameter R1 of 0.8 mm in this embodiment is suitable for pediatric laparoscopic surgery. The curvature of the first arc surface 21 is smaller than or much smaller than the curvature of the second arc surface 24. The first arc surface 21 forms a narrow and long cutting surface. Compared with the traditional electric coagulation hook, the first arc surface 21 of this embodiment is narrow and long, especially when the curvature of the first arc surface 21 is 0°-10°, such as 0° forming a sharp blade, the cutting electric energy is more concentrated on the narrow first arc surface 21, which greatly improves the cutting efficiency of the electric coagulation hook. Efficiency; In addition, the curvature of the first arc surface 21 is smaller than or much smaller than the curvature of the second arc surface 24, and the curvature c of the second arc surface 24 is preferably 90°-180°. When cutting is not required, the first defect surface 22, the second defect surface 23 and the second arc surface 24 can be used as hemostatic surfaces. The first defect surface 22, the second defect surface 23 and the second arc surface 24 occupy the vast majority of the second cylinder 2. The electric coagulation hook of this embodiment maintains the hemostatic function while improving the cutting efficiency; (2) The first defect surface 22 is a curved surface or an inclined surface, and the second defect surface 23 is a curved surface or an inclined surface. See the inclined surface for details. Figure 3 ; See Figure 4 When the first defect surface 22 and the second defect surface 23 are both arc surfaces, the radius of the first defect surface 22 and the second defect surface 23 is much larger than the radius of the first arc surface 21. At this time, the cross-section of the second cylinder 2 is teardrop-shaped, and the surface area of ​​the first defect surface 22 and the second defect surface 23 is larger, ensuring the hemostasis area; (3) The surface roughness of the first cylinder 1 and the second cylinder 2 is 0.01μm-0.4μm. The smaller the surface roughness, the less likely the surface of the second cylinder 2 is to adhere to the tissue, and the less thermal damage; the end 25 of the second cylinder 2 is rounded to avoid the sharp edge of the end 25 directly scratching the organs and blood vessels. The rounded end 25 facilitates blunt separation of tissues during surgery and facilitates insertion into tissue gaps.

[0048] Example 3

[0049] See also Figure 5 This embodiment discloses a specific implementation of a medical electrocoagulation device.

[0050] Medical electrocoagulation devices, see Figure 5 The device comprises a handle 4 and an electrocoagulation unit 5. The electrocoagulation unit 5 utilizes the tungsten electrocoagulation hook described in Example 1 or Example 2. When a doctor uses the medical electrocoagulation device of this embodiment, they use the narrow first curved surface 21 to cut tissue, and the first defect surface 22, the second defect surface 23, and the second curved surface 24 as electrocoagulation hemostasis surfaces, thereby ensuring both the sharp cutting and electrocoagulation effects of the electrocoagulation hook.

[0051] The medical electrocoagulation device disclosed in this embodiment has the same technical solutions as those in Embodiment 1 and Embodiment 2. Please refer to the description in Embodiment 1 or Embodiment 2 and will not be repeated here.

Claims

1. Tungsten electrocoagulation hook, characterized by: It includes a first column, a second column and an arc-shaped bending portion, wherein the first column, the second column and the arc-shaped bending portion are an integrally formed structure; The surface of the second cylinder includes a first arc surface, a first defective surface, a second defective surface and a second arc surface; The first defect surface and the second defect surface are symmetrically arranged on both sides of the axial cross section of the electrocoagulation hook, the first defect surface is a curved surface or an inclined surface, and the second defect surface is a curved surface or an inclined surface; The curvature of the first curved surface is 0°-30°, and the curvature of the first curved surface is smaller than that of the second curved surface.

2. The tungsten electrocoagulation hook according to claim 1, characterized in that: The first arc surface and the second arc surface are located on the same circular surface.

3. The tungsten electrocoagulation hook according to claim 2, characterized in that: The diameters of the first column and the second column are equal or unequal.

4. The tungsten electrocoagulation hook according to claim 3, characterized in that: The diameters of the first column and the second column are 0.8 mm to 3 mm, and the surface roughness of the first column and the second column is 0.01 μm to 0.4 μm.

5. The tungsten electrocoagulation hook according to any one of claims 1 to 4, characterized in that: The length of the first arc surface is 2mm-10mm.

6. The tungsten electrocoagulation hook according to any one of claims 1 to 4, characterized in that: The included angle between the first column and the second column is 60°-160°.

7. A medical electrocoagulation device, characterized in that: It comprises a handle portion and an electrocoagulation portion, wherein the electrocoagulation portion adopts the tungsten electrocoagulation hook according to any one of claims 1-6.

8. Stainless steel electrocoagulation hook, characterized by: It includes a first column, a second column and an arc-shaped bending portion, wherein the first column, the second column and the arc-shaped bending portion are an integrally formed structure; The surface of the second cylinder includes a first arc surface, a first defective surface, a second defective surface and a second arc surface; The first defect surface and the second defect surface are symmetrically arranged on both sides of the axial cross section of the electrocoagulation hook, the first defect surface is a curved surface or an inclined surface, and the second defect surface is a curved surface or an inclined surface; The curvature of the first curved surface is 0°-30°, and the curvature of the first curved surface is smaller than the curvature of the second curved surface; The first arc surface and the second arc surface are on the same circular surface; The diameters of the first cylinder and the second cylinder are equal or unequal; The diameters of the first column and the second column are 0.8 mm to 3 mm.

9. The stainless steel electrocoagulation hook according to claim 8, characterized in that: The length of the first arc surface is 2mm-10mm.

10. The stainless steel electrocoagulation hook according to claim 8, characterized in that: The included angle between the first column and the second column is 60°-160°.

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