Surgical knife with visual function

Abstract

The utility model discloses a surgical knife with a visual function, and relates to the technical field of medical instruments. The surgical knife with the visual function comprises a mirror tube and a handle arranged at the rear end of the mirror tube. The endoscope tube comprises an outer sleeve and an inner sleeve. A cutter assembly is arranged in the inner sleeve, and the front end of the cutter assembly extends to the outside of the endoscope tube. And an electronic endoscope and a lighting piece are arranged at the front end part of the endoscope tube between the outer sleeve and the inner sleeve. According to the surgical knife with the visual function, the surgical knife and the electronic endoscope are integrated together, so that the operation can be completed by a single hand.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a surgical instrument with a visual function. Background Technology

[0002] High-frequency surgical electrodes are surgical instruments that use high-frequency current to generate high heat, thereby rapidly cutting tissue and simultaneously coagulating blood. They are characterized by fast cutting speed and good coagulation effect, and are widely used in surgeries where mechanical surgical instruments are difficult to access or perform.

[0003] Plasma blades are surgical instruments that use plasma generated by ionizing air molecules for cutting and hemostasis. They feature low-temperature cutting, precise control, and good hemostasis, making them suitable for delicate surgical procedures such as ophthalmology, dentistry, and dermatology.

[0004] However, existing high-frequency surgical electrodes and plasma blades require the use of an endoscope, which is a relatively independent product. During surgery, one hand needs to hold the endoscope, and the other hand needs to hold the high-frequency surgical electrode and plasma blade, which is inconvenient to operate. Utility Model Content

[0005] To address the aforementioned issues, this application provides a surgical instrument with a visual function that integrates the surgical instrument and an electronic endoscope, allowing the operation to be completed with one hand.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A surgical instrument with a visual function includes a scope tube and a handle disposed at the rear end of the scope tube;

[0008] The scope tube includes an outer tube and an inner tube;

[0009] The inner sleeve is provided with a cutting tool assembly, and the front end of the cutting tool assembly extends to the outside of the lens tube;

[0010] An electronic endoscope and an illumination device are provided at the front end of the endoscope tube between the outer sleeve and the inner sleeve.

[0011] Furthermore, the inner sleeve is eccentrically positioned relative to the outer sleeve.

[0012] Furthermore, the inner sleeve and the outer sleeve are tangent to each other, and the contact portions of the inner sleeve and the outer sleeve are fixedly connected.

[0013] Furthermore, a first fixing block is fixedly provided between the inner tube and the outer tube at the front end of the endoscope tube. The first fixing block is provided with a first mounting hole and a second mounting hole. The electronic endoscope is installed in the first mounting hole, and the illumination element is installed in the second mounting hole.

[0014] Furthermore, a flushing pipe is provided between the inner sleeve and the outer sleeve.

[0015] Furthermore, the cutting tool assembly includes a protective tube, a partition is disposed inside the protective tube, and the front end of the partition extends to the front side of the protective tube. Electrodes are respectively disposed on both sides of the partition inside the protective tube, and the electrode heads of the electrodes extend to the front side of the protective tube.

[0016] Furthermore, the handle includes a fixed base and a sliding base that can slide back and forth relative to the fixed base. The rear end of the tool assembly is fixedly connected to the sliding base. When the sliding base slides back and forth relative to the fixed base, the sliding base can drive the tool assembly to slide back and forth inside the endoscope tube.

[0017] Furthermore, the fixed base is provided with a first through hole, the lens tube is inserted into the first through hole from the front, the sliding base is inserted into the first through hole from the rear and is slidably connected with the fixed base, the sliding base is provided with a second through hole, the rear end of the tool assembly is inserted into the second through hole and is fixedly connected to the sliding base by a second fixing block.

[0018] Furthermore, an elastic element is provided between the fixed seat and the sliding seat to prevent the sliding seat from moving towards the end of the endoscope tube.

[0019] Furthermore, the elastic element is a grip handle disposed on the handle, the grip handle includes a first grip portion and a second grip portion, the upper end of the first grip portion is hinged to the fixed seat, the upper end of the second grip portion is hinged to the sliding seat, and the lower ends of the first grip portion and the second grip portion are connected by a connecting portion.

[0020] The beneficial effects of this utility model are:

[0021] This application provides a surgical instrument with a visual function. By incorporating a scope tube, an electronic endoscope is positioned at the front end of the scope tube, and the surgical instrument is placed inside the scope tube with its tip extending out from the scope tube, thus integrating the surgical instrument and the electronic endoscope. This allows for clear observation of the surgical instrument's operation through the electronic endoscope, enabling surgery to be performed under visual guidance. Furthermore, the surgical procedure can be completed with just one hand, eliminating the need for two hands. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a surgical instrument with a visual function provided for an embodiment of this application;

[0023] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0024] Figure 3 A side view of a surgical instrument with a visual function provided in an embodiment of this application;

[0025] Figure 4 for Figure 3 AA section view in the middle;

[0026] Figure 5 for Figure 3 BB section view in the middle;

[0027] Figure 6 A top view of a surgical instrument with a visual function provided in an embodiment of this application;

[0028] Figure 7 for Figure 6 CC section view in the middle;

[0029] Figure 8 for Figure 7 A magnified structural diagram of part B in the middle section;

[0030] Figure 9 for Figure 7 A magnified structural diagram of section C;

[0031] Figure 10 for Figure 7 A magnified structural diagram of section D in the middle;

[0032] Figure 11 An exploded view of the front end of a surgical instrument with a visual function, provided for an embodiment of this application;

[0033] Figure 12 An exploded view of the tool assembly;

[0034] Figure 13 This is a schematic diagram of the three-dimensional structure of the first fixed block.

[0035] In the diagram: 1. Lens tube; 11. Outer tube; 12. Inner tube;

[0036] 2. Handle; 21. Fixing base; 211. First through hole; 22. Sliding base; 221. Second through hole;

[0037] 3. Tool assembly; 31. Protective tube; 311. Partition; 32. Electrode; 321. Electrode head;

[0038] 4. Electronic endoscope;

[0039] 5. LED lights;

[0040] 6. First fixing block; 61. First mounting hole; 62. Second mounting hole; 63. Third mounting hole;

[0041] 7. Flushing hose;

[0042] 8. Second fixing block; 81. Second clearance hole;

[0043] 9. Handle; 91. First grip; 92. Second grip; 93. Connecting part. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings. The described embodiments are merely a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the protection scope of this application.

[0045] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0046] Example 1

[0047] like Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 11 As shown, a surgical instrument with a visual function includes a scope tube 1 and a handle 2 disposed at the rear end of the scope tube 1.

[0048] The endoscope tube 1 includes an outer tube 11 and an inner tube 12 located inside the outer tube 11, with the inner tube 12 fixedly connected to the outer tube 11. A blade assembly 3, which is a high-frequency surgical electrode 32 or a plasma blade, is disposed within the inner tube 12, and its front end extends to the outside of the endoscope tube 1. An electronic endoscope 4 and an illumination element are disposed between the outer tube 11 and the inner tube 12 at the front end of the endoscope tube 1.

[0049] In one specific implementation, the inner sleeve 12 is eccentrically positioned relative to the outer sleeve 11 in this embodiment, which increases the installation space for the electronic endoscope 4 and the illumination component.

[0050] Furthermore, the inner sleeve 12 and the outer sleeve 11 are tangent to each other, and the contact portions of the inner sleeve 12 and the outer sleeve 11 are fixedly connected. For example, the contact portions of the inner sleeve 12 and the outer sleeve 11 are fixedly connected by welding or bonding.

[0051] In one specific embodiment, the front end of the endoscope tube 1 is provided with two illumination elements, and the two illumination elements are respectively located on both sides of the electronic endoscope 4. For example, the illumination elements are LED lights 5.

[0052] Furthermore, the electronic endoscope 4 is symmetrical about the plane defined by the axis of the inner sleeve 12 and the axis of the outer sleeve 11, and the two illumination elements are arranged symmetrically about the plane defined by the axis of the inner sleeve 12 and the axis of the outer sleeve 11.

[0053] As one specific implementation method, such as Figure 4 , Figure 11 and Figure 13 As shown, in this embodiment, a first fixing block 6 is fixedly disposed between the inner sleeve 12 and the outer sleeve 11 at the front end of the endoscope tube 1. The first fixing block 6 is crescent-shaped and seals the crescent-shaped gap formed by the inner sleeve 12 and the outer sleeve 11. The first fixing block 6 is provided with a first mounting hole 61 and a second mounting hole 62. The electronic endoscope 4 is installed in the first mounting hole 61, and the illumination element is installed in the second mounting hole 62. Exemplarily, the first fixing block 6 is fixedly disposed within the endoscope tube 1 by tensioning.

[0054] Furthermore, a flushing pipe 7 is provided between the inner sleeve 12 and the outer sleeve 11, and a third mounting hole 63 is provided on the first fixing block 6. The front end of the flushing pipe 7 is inserted into the third mounting hole 63 and fixedly connected to the first fixing block 6. For example, the flushing pipe 7 is fixedly connected to the first fixing block 6 by an interference fit.

[0055] like Figure 8 and Figure 12 As shown, the tool assembly 3 includes a protective tube 31, within which a partition 311 is disposed, with the front end of the partition 311 extending to the front side of the protective tube 31. Electrodes 32 are respectively disposed on both sides of the partition 311 within the protective tube 31. The electrode heads 321 of the electrodes 32 extend to the front side of the protective tube 31 and are aligned with the front end face of the partition 311.

[0056] like Figure 7 and Figure 9As shown, the front end of the handle 2 is provided with a insertion hole, and the rear end of the endoscope tube 1 is inserted into the insertion hole and fixedly connected to the handle 2. The handle 2 is provided with a wiring hole that communicates with the insertion hole, and the cables of the tool assembly 3, the electronic endoscope 4, and the illumination component (not shown in the figure), as well as the flushing pipe 7, all pass through the wiring hole.

[0057] In one specific implementation, the wiring hole and the plug hole are coaxial in this embodiment, and the wiring hole and the plug hole together form a channel that passes through the handle 2 in the front-to-back direction.

[0058] Furthermore, such as Figure 1 , Figure 3 and Figure 7 As shown, the handle 2 includes a fixed base 21 and a sliding base 22 from front to back. The fixed base 21 has a first through hole 211 extending through it in the front-back direction. The rear end of the endoscope tube 1 is inserted into the first through hole 211 from the front and is fixedly connected to the fixed base 21. The front end of the first through hole 211 is the insertion hole. The sliding base 22 is inserted into the first through hole 211 from the rear end and is slidably connected to the fixed base 21, meaning the sliding base 22 can slide back and forth relative to the fixed base 21. The rear end of the blade assembly 3 is fixedly connected to the sliding base 22. Thus, when the sliding base 22 slides back and forth relative to the fixed base 21, it can drive the blade assembly 3 to slide back and forth within the endoscope tube 1, allowing the blade assembly 3 to extend or retract as needed during surgical operations.

[0059] As one specific implementation method, such as Figure 5 , Figure 7 and Figure 10 As shown, in this embodiment, the sliding seat 22 is provided with a second through hole 221 extending through the sliding seat 22 in the front-to-back direction. The rear end of the tool assembly 3 is inserted into the second through hole 221 and is fixedly connected to the sliding seat 22 by the second fixing block 8. For example, the second fixing block 8 is fixedly connected to the sliding seat 22 by an interference fit. The second fixing block 8 is provided with a fourth mounting hole for accommodating the tool assembly 3. The rear end of the tool assembly 3 is inserted into the fourth mounting hole and fixedly connected to the second fixing block 8 by an interference fit. The second fixing block 8 is provided with a first clearance hole for accommodating the flushing pipe 7 and a second clearance hole 81 for accommodating the cables of the tool assembly 3, the electronic endoscope 4, and the lighting element. The second clearance hole 81 has an arc-shaped structure.

[0060] In one specific embodiment, the second through hole 221 and the first through hole 211 are arranged coaxially in this embodiment. The first through hole 211 and the second through hole 221 together form a channel that passes through the handle 2 in the front-back direction. The front end of the first through hole 211 serves as a insertion hole to accommodate the endoscope tube 1, and the rear end of the first through hole 211 and the second through hole 221 serve as wiring holes to accommodate the cables of the tool assembly 3, the electronic endoscope 4, and the illumination element, as well as the flushing pipe 7.

[0061] In one specific embodiment, the first through hole 211 in this embodiment is stepped, comprising a first hole segment and a second hole segment from front to back, wherein the diameter of the first hole segment is smaller than the diameter of the second hole segment. The first hole segment is the insertion hole, and the front end of the sliding seat 22 is inserted into the second hole segment from the rear side, forming a guiding fit with the second hole segment.

[0062] Furthermore, such as Figure 7 As shown, an elastic element is provided between the fixed base 21 and the sliding base 22 to prevent the sliding base 22 from moving forward relative to the fixed base 21.

[0063] As one specific implementation method, such as Figure 1 and Figure 3 As shown, in this embodiment, the elastic element is a grip handle 9 disposed on the handle 2. The grip handle 9 includes a first grip portion 91 and a second grip portion 92. The upper end of the first grip portion 91 is hinged to the fixed base 21, and the upper end of the second grip portion 92 is hinged to the sliding base 22. The lower ends of the first grip portion 91 and the second grip portion 92 are connected by a connecting portion 93. The first grip portion 91, the second grip portion 92, and the connecting portion 93 together form an open-loop structure with one opening facing the handle 2. The open-loop structure can be U-shaped, V-shaped, C-shaped, or irregular in shape.

[0064] Here, the grip handle 9 not only serves as a grip but also functions as a limiter and elastic support. In use, gripping the grip handle 9 causes it to elastically deform, allowing the tool assembly 3 to extend. When the grip handle 9 is released, it returns to its original shape, causing the tool assembly 3 to retract. In its free state, the size of the opening of the grip handle 9 is fixed (to achieve a larger opening, both hands must grip the first grip portion 91 and the second grip portion 92 simultaneously). Therefore, the limit position of the sliding seat 22 relative to the fixed seat 21 in the rearward sliding direction is determined. Thus, the grip handle 9 also serves as a limiter during operation.

[0065] Example 2

[0066] The inner sleeve 12 and the outer sleeve 11 are arranged coaxially, and a plurality of fixing rings are evenly distributed along the axial direction between the inner sleeve 12 and the outer sleeve 11. The outer surface of the fixing ring is fixedly connected to the outer sleeve 11 by an interference fit, and the inner surface of the fixing ring is fixedly connected to the inner sleeve 12 by an interference fit.

[0067] The foremost retaining ring has a first mounting hole 61 for mounting the electronic endoscope 4, a second mounting hole 62 for mounting the illumination element, and a third mounting hole 63 for mounting the flushing pipe 7. The remaining retaining rings have third clearance holes through which the cables for the cutting tool assembly 3, the electronic endoscope 4, and the illumination element, as well as the flushing pipe 7, all pass.

[0068] In one specific embodiment, three fixing rings are evenly distributed along the axial direction between the inner sleeve 12 and the outer sleeve 11.

[0069] The rest of the structure is the same as in Example 1.

[0070] Example 3

[0071] The outer surface of the sliding seat 22 is stepped, comprising a first shaft segment, a second shaft segment, and a third shaft segment from front to back. The diameter of the second shaft segment is smaller than that of the first and third shaft segments. The diameter of the second hole segment of the fixed seat 21 is the same as that of the first shaft segment, forming a sliding fit between them. An end cap is provided at the rear end of the fixed seat 21, and the end cap has a guide hole that mates with the second shaft segment. The elastic element is a spring sleeved on the second shaft segment of the sliding seat 22, with one end of the spring abutting against the end cap and the other end abutting against the stepped surface formed by the second and third shaft segments.

[0072] Furthermore, a first gripping rod is provided on the fixed base 21, and a second gripping rod is provided on the sliding base 22.

[0073] The rest of the structure is the same as in Example 1.

[0074] Other embodiments obtained by those skilled in the art based on the embodiments provided in this application by combining, splitting, or reorganizing the embodiments of this application do not exceed the protection scope of this application.

[0075] The above detailed embodiments have provided a detailed explanation of the purpose, technical solutions, and beneficial effects of the embodiments of this application. The above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. That is, any modifications, equivalent substitutions, improvements, etc., made on the basis of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A surgical knife with visual function, characterized in that: The mirror tube (1) and the handle (2) arranged at the rear end of the mirror tube (1) are included. The mirror tube (1) includes an outer sleeve (11) and an inner sleeve (12). The inner sleeve (12) is provided with a cutter assembly (3), and the front end of the cutter assembly (3) extends to the outside of the mirror tube (1). The electronic endoscope (4) and the illuminating element are fixedly arranged between the outer sleeve (11) and the inner sleeve (12) at the front end of the mirror tube (1).

2. The surgical tool with visual function according to claim 1, characterized in that: The inner sleeve (12) is arranged eccentrically relative to the outer sleeve (11).

3. The surgical tool with visual function according to claim 1, characterized in that: The inner sleeve (12) and the outer sleeve (11) are tangent to each other, and the contact part of the inner sleeve (12) and the outer sleeve (11) is fixedly connected.

4. The surgical tool with visual function according to claim 3, characterized in that: The first fixing block (6) is fixedly arranged between the inner sleeve (12) and the outer sleeve (11) at the front end of the mirror tube (1), the first fixing block (6) is provided with a first mounting hole (61) and a second mounting hole (62) respectively, the electronic endoscope (4) is mounted in the first mounting hole (61), and the illuminating element is mounted in the second mounting hole (62).

5. The surgical tool with visual function according to claim 1, characterized in that: The inner sleeve (12) and the outer sleeve (11) are provided with a flushing pipe (7).

6. The surgical tool with visual function according to claim 1, characterized in that: The cutter assembly (3) includes a protective tube (31), the protective tube (31) is provided with a partition plate (311), the front end of the partition plate (311) extends to the front side of the protective tube (31), electrodes (32) are arranged on both sides of the partition plate (311) in the protective tube (31), and electrode heads (321) of the electrodes (32) extend to the front side of the protective tube (31).

7. The surgical tool with visual function according to claim 1, characterized in that: The handle (2) includes a fixed seat (21) and a sliding seat (22) capable of sliding forward and backward relative to the fixed seat (21), the rear end of the cutter assembly (3) is fixedly connected with the sliding seat (22), and when the sliding seat (22) slides forward and backward relative to the fixed seat (21), the sliding seat (22) can drive the cutter assembly (3) to slide forward and backward in the mirror tube (1).

8. The surgical tool with visual function according to claim 7, characterized in that: The first through hole (211) is arranged through the fixed seat (21), the mirror tube (1) is inserted into the first through hole (211) from the front side, the sliding seat (22) is inserted into the first through hole (211) from the rear side and is in sliding connection with the fixed seat (21), the second through hole (221) is arranged through the sliding seat (22), and the rear end of the cutter assembly (3) is inserted into the second through hole (221) and is fixedly connected with the sliding seat (22) through the second fixing block (8).

9. The surgical tool with visual function according to claim 7, characterized in that: The elastic element for preventing the sliding seat (22) from moving to the side of the mirror tube (1) is arranged between the fixed seat (21) and the sliding seat (22).

10. The surgical tool with visual function according to claim 9, characterized in that: The elastic member is a holding handle (9) arranged on the handle (2), the holding handle (9) comprises a first holding part (91) and a second holding part (92), the upper end of the first holding part (91) is hingedly connected with the fixed seat (21), the upper end of the second holding part (92) is hingedly connected with the sliding seat (22), and the lower ends of the first holding part (91) and the second holding part (92) are connected through a connecting part (93).

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