Self-cleaning antibacterial medical endoscope

Abstract

The utility model relates to endoscope equipment technical field, concretely relates to a kind of self-cleaning antibacterial medical endoscope, including endoscope main body, lens insertion tube being set on endoscope main body and lens being set in lens insertion tube insertion end, composite antibacterial coating is all set on the outer surface of lens insertion tube and lens, the outer surface of lens insertion tube is set with outer sleeve tube component, outer sleeve tube component includes the outer sleeve tube of sleeve lens insertion tube outside, the end part pipe body side of outer sleeve tube is close to lens and is set with multiple flush nozzles for avoiding flush operation to lens, and the other end of outer sleeve tube is set with outer flush connecting pipe for flush nozzle water supply.The utility model sets flush component in outside, so that subsequent disinfection treatment of lens insertion tube is more convenient, comprehensive.

Description

Technical Field

[0001] This utility model relates to the field of endoscope equipment technology, and more specifically, to a self-cleaning antibacterial medical endoscope. Background Technology

[0002] Medical endoscopes are essential tools for clinical diagnosis and minimally invasive surgery, obtaining internal images by inserting them into body cavities. However, traditional medical endoscopes have some problems during use. For example, once the endoscope body and lens are inserted into the body cavity, they are easily contaminated with mucus, blood, tissue debris, and other pollutants, severely affecting image clarity. For instance, during gastrointestinal examinations, food residue and mucus in the intestines can cover the lens, making it difficult for doctors to accurately observe lesions.

[0003] Patent CN114190871A discloses a self-cleaning medical endoscope for camera lenses. Addressing the problem of unclear image quality at the lens end, the invention proposes the following solution: a handle with a lens barrel at its top, forming a gun-like structure; a water channel structure inside the bottom of the handle and an optical channel structure inside the top; and a lens insertion tube connected at one end to the end of the lens barrel, with a lens mount attached to the end of the insertion tube. This invention utilizes end-mounted flushing components for targeted cleaning of the lens and supplementary lighting. Three flushing components are switchable to target different endoscopic areas, improving cleaning effectiveness. The flushing volume and intensity are adjustable, reducing pressure on the lens end during cleaning. Control is convenient via levers and knobs, and the image at the lens end can be directly viewed on a display screen, enhancing overall ease of operation.

[0004] While this technical solution offers advantages such as improved cleaning effectiveness and enhanced operational convenience, most current medical endoscopes, during self-cleaning operations, directly place the internal cavity for delivering the cleaning solution within the lens cannula. Although the cleaning solution flows out from the lens tip after insertion, achieving a cleaning effect, the lens cannula is reusable and relatively long, while the internal diameter of the cleaning solution delivery cavity is relatively small. This placement of the cleaning solution delivery cavity within the lens cannula makes subsequent thorough disinfection of the cavity difficult, creating blind spots in cleaning and disinfection and increasing the risk of cross-infection. Therefore, we propose a self-cleaning antibacterial medical endoscope. Utility Model Content

[0005] The purpose of this invention is to provide a self-cleaning antibacterial medical endoscope to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A self-cleaning antibacterial medical endoscope includes an endoscope body, a lens cannula disposed on the endoscope body, and a lens disposed at the insertion end of the lens cannula. Both the lens cannula and the lens have a composite antibacterial coating on their outer surfaces. An outer sleeve assembly is disposed outside the lens cannula. The outer sleeve assembly includes an outer sleeve that is fitted over the lens cannula. Multiple rinsing nozzles for avoiding rinsing the lens are disposed on the side of the tube body of the outer sleeve near the lens end. An external rinsing connection pipe for supplying water to the rinsing nozzles is disposed at the other end of the outer sleeve.

[0007] Preferably, the endoscope body has a handle at the bottom of its housing, and the surface of the handle has an anti-slip layer.

[0008] Preferably, the thickness of the composite antibacterial coating is between 5 and 10 micrometers, and the composite antibacterial coating is a composite layer of nano-silver particles and quaternary ammonium salt antibacterial agent.

[0009] Preferably, the inlet end of the external flushing connection pipe is fixedly installed with a fixed connector, which is connected to the external flushing fluid injector.

[0010] Preferably, an annular chamber is provided in the end tube of the outer sleeve near the flushing nozzle, the flushing nozzle is connected to the annular chamber, a liquid-passing chamber is provided inside the outer sleeve and is connected to the annular chamber, and the water outlet end of the outer flushing connecting pipe is fixedly installed on the outer sleeve and connected to the liquid-passing chamber. This setting allows the cleaning fluid to flow normally and be sprayed from the rinsing nozzle.

[0011] Preferably, an inner guide cylinder is fixedly installed on the inner wall of the outer tube near the end of the rinsing nozzle. The inner guide cylinder is used to guide the insertion of the lens.

[0012] Preferably, the inner guide cylinder is provided with an inner conical guide chamber that is connected to the outside at both ends, and the inner conical guide chamber is in the shape of a frustum, which is narrow at the top and wide at the bottom; This setting makes inserting the lens part smoother.

[0013] Preferably, a limiting ring is fixedly installed on the surface of the lens, and the limiting ring abuts against the cavity wall of the inner conical guide chamber; This setting allows for limiting the extension length of the lens, preventing the rinsing nozzle from being unable to rinse the lens.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting an outer sleeve assembly, places the rinsing nozzle on the side of the outer sleeve near the lens end. The rinsing fluid is delivered to the nozzle through a fluid-passing chamber and an annular chamber within the outer sleeve, thus separating the cleaning fluid delivery chamber from the lens cannula. This avoids the need for a cleaning fluid delivery chamber within the lens cannula, making subsequent disinfection of the lens cannula more convenient and comprehensive, effectively eliminating blind spots in cleaning and disinfection, greatly reducing the risk of cross-infection, and ensuring medical safety.

[0015] 2. This utility model coats the lens tube and the outer surface of the lens with a composite coating of nano-silver particles and quaternary ammonium salt antibacterial agent. The synergistic effect of nano-silver particles and quaternary ammonium salt antibacterial agent forms a long-lasting antibacterial barrier, which can effectively inhibit the growth and reproduction of bacteria, viruses and other microorganisms on the lens surface, thus achieving the effect of antibacterial protection.

[0016] 3. This utility model provides an inner guide cylinder within the end tube of the outer sleeve near the rinsing nozzle, and designs the guide chamber within it as a frustum shape that is narrower at the top and wider at the bottom. Simultaneously, a limiting ring that mates with the guide chamber is installed on the lens surface. This achieves precise guidance and effective limitation of the lens insertion length, allowing the lens to be smoothly inserted into the appropriate position. This ensures that the rinsing nozzle can accurately align with the lens for rinsing, improving the stability and effectiveness of the self-cleaning operation, and guaranteeing the cleaning effect and image clarity of the lens. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional schematic diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; The meanings of the labels in the diagram are as follows: 1. Endoscope body; 10. Handle; 101. Anti-slip layer; 11. Lens tube; 12. Lens; 121. Limiting ring; 2. Composite antibacterial coating; 3. Outer tube assembly; 30. Outer tube; 31. Annular chamber; 32. Fluid passage chamber; 33. External flushing connection pipe; 34. Fixed joint; 35. Inner guide tube; 351. Inner conical guide chamber; 36. Flushing nozzle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3 This utility model provides a technical solution: a self-cleaning antibacterial medical endoscope, including an endoscope body 1, a lens cannula 11 disposed on the endoscope body 1, and a lens 12 disposed at the insertion end of the lens cannula 11. A composite antibacterial coating 2 is disposed on the outer surface of both the lens cannula 11 and the lens 12. The thickness of the composite antibacterial coating 2 is between 5 and 10 micrometers. The composite antibacterial coating 2 is a composite layer of nano-silver particles and quaternary ammonium salt antibacterial agent. The nano-silver particles can destroy the cell wall and cell membrane of bacteria and interfere with the metabolic process of bacteria, thereby achieving a bactericidal effect. The quaternary ammonium salt antibacterial agent, by adsorbing on the surface of bacteria, changes the permeability of the cell membrane, causing the internal substances of bacteria to leak out, thereby playing an antibacterial role. The combination of the two forms a synergistic antibacterial effect, effectively inhibiting the growth and reproduction of bacteria, viruses and other microorganisms, and reducing the risk of cross-infection caused by residual pathogens on the surface during the use of the endoscope.

[0020] In this embodiment, an outer sleeve assembly 3 is provided outside the lens tube 11. The outer sleeve assembly 3 includes an outer sleeve 30 that is fitted over the lens tube 11. Multiple rinsing nozzles 36 are provided on the side of the tube body of the outer sleeve 30 near the lens 12 to prevent rinsing of the lens 12. An external rinsing connection pipe 33 is provided at the other end of the outer sleeve 30 to supply water to the rinsing nozzles 36, thereby cleaning the lens 12 and preventing contaminants from affecting the image clarity. The cleaning fluid delivery structure is independent of the lens tube 11. The outer sleeve assembly 3 can be used as a disposable tool, which facilitates the subsequent disinfection of the lens tube 11 and eliminates cleaning and disinfection dead corners.

[0021] like Figure 1 As shown, a handle 10 is provided at the bottom of the endoscope body 1. An anti-slip layer 101 is provided on the surface of the handle 10, which increases the friction between the hand and the handle 10 when medical staff operate the endoscope, making the grip more stable. Even during long-term operation or when the hands are sweaty, it can effectively prevent hand slippage, improve the safety and stability of operation, and facilitate precise control of the endoscope.

[0022] Specifically, a fixed connector 34 is fixedly installed at the water inlet end of the external flushing connection pipe 33. The fixed connector 34 is connected to the external flushing fluid injector, so that the external flushing fluid injector can be quickly and securely connected to the outer sleeve assembly 3, ensuring the stability of the flushing fluid supply. When it is necessary to replace the flushing fluid injector or maintain the device, it can also be easily disassembled and installed, improving operating efficiency and ensuring the normal operation of the endoscope's self-cleaning function. The external flushing fluid injector can be a syringe or a corresponding external delivery pump.

[0023] Furthermore, an annular chamber 31 is provided inside the end of the outer tube 30 near the rinsing nozzle 36. The rinsing nozzle 36 is connected to the annular chamber 31. A liquid-passing chamber 32, which is connected to the annular chamber 31, is provided inside the outer tube 30. The water outlet end of the external rinsing connecting pipe 33 is fixedly installed on the outer tube 30 and connected to the liquid-passing chamber 32, so that the rinsing fluid input by the external rinsing connecting pipe 33 can be evenly distributed in the annular chamber 31 and then stably sprayed out through the rinsing nozzle 36. This structural design ensures smooth flow of rinsing fluid, enabling all-round and uniform rinsing of the lens 12, thus improving the cleaning effect.

[0024] In addition, an inner guide tube 35 is fixedly installed on the inner wall of the outer tube 30 near the end of the rinsing nozzle 36. The inner guide tube 35 is used to guide the insertion of the lens 12, so that the lens 12 has a clear guiding path during the insertion process, reducing deviation and resistance during insertion. The inner guide tube 35 can guide the lens 12 to the predetermined position accurately, making it easier for the rinsing nozzle 36 to align with the lens 12 for cleaning, thus improving the accuracy and efficiency of the operation.

[0025] like Figure 3 As shown, the inner guide tube 35 has an inner conical guide chamber 351 with both ends connected to the outside. The inner conical guide chamber 351 is shaped like a frustum, narrow at the top and wide at the bottom, which allows the lens 12 to enter smoothly along the gradually widening cavity when inserted, reducing obstruction during the insertion process. This shape design conforms to ergonomic principles, reduces the difficulty of inserting the lens 12, makes the operation smoother, and also protects the lens 12 and the outer tube 30 from damage.

[0026] like Figure 3 As shown, a limiting ring 121 is fixedly installed on the surface of the lens 12. The limiting ring 121 abuts against the cavity wall of the inner conical guide chamber 351, so that during the insertion of the lens 12, the limiting ring 121 cooperates with the inner conical guide chamber 351 to precisely limit the extension length of the lens 12. This ensures that the lens 12 is within the effective rinsing range of the rinsing nozzle 36, and avoids the rinsing nozzle 36 being unable to fully rinse the lens 12 due to excessive or insufficient extension, thus ensuring the effectiveness of the self-cleaning function.

[0027] It is worth noting that the thickness of the outer tube 30 is between 0.8mm and 2mm, and the outer diameter of the outer tube 30 is between 5mm and 12mm. This allows it to fit into the human body cavity, ensuring smooth insertion, and also reasonably accommodates structures such as the flushing nozzle 36, ensuring the effective realization of the self-cleaning function.

[0028] When using the self-cleaning antibacterial medical endoscope of this utility model, firstly, the outer sleeve 30 of the outer sleeve assembly 3 is put on the outside of the lens insertion tube 11. The lens 12 is then guided into the tube through the inner guide tube 35 and its inner conical guide chamber 351, so that the limiting ring 121 on the surface of the lens 12 abuts against the wall of the inner conical guide chamber 351, and the extension length of the lens 12 is accurately determined. Next, connect the fixed connector 34 at the water inlet end of the external flushing connection tube 33 to an external flushing fluid injector, such as a syringe or delivery pump, to ensure a stable supply of flushing fluid. The medical staff hold the handle 10 with the anti-slip layer 101 at the bottom of the endoscope body 1 and insert the lens cannula 11 and the outer cannula 30 into the human cavity together. When the lens 12 is affected by contaminants such as mucus and tissue residue, the external rinsing fluid injector is activated. The rinsing fluid enters the liquid passage chamber 32 of the outer sleeve 30 through the external rinsing connection pipe 33, then is evenly distributed to the annular chamber 31, and finally sprayed out from the rinsing nozzle 36 to rinse the lens 12 in all directions. After use, since the outer tube assembly 3 can be discarded as a disposable item, only the lens tube 11 and lens 12 need to be disinfected. The composite antibacterial coating 2 on its surface continues to play an antibacterial role during use and disinfection, inhibiting the growth of bacteria, reducing the risk of cross-infection, and ensuring safety for the next use.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning antibacterial medical endoscope, comprising an endoscope body (1), a lens cannula (11) disposed on the endoscope body (1), and a lens (12) disposed at the insertion end of the lens cannula (11), characterized in that: Both the lens tube (11) and the lens (12) are provided with a composite antibacterial coating (2). The lens tube (11) is provided with an outer tube assembly (3). The outer tube assembly (3) includes an outer tube (30) that is sleeved on the outside of the lens tube (11). The outer tube (30) near the end of the tube body near the lens (12) is provided with a plurality of rinsing nozzles (36) for avoiding rinsing the lens (12). The other end of the outer tube (30) is provided with an external rinsing connection pipe (33) for supplying water to the rinsing nozzles (36).

2. The self-cleaning antibacterial medical endoscope according to claim 1, characterized in that: The endoscope body (1) has a handle (10) at the bottom of its housing, and the surface of the handle (10) has an anti-slip layer (101).

3. The self-cleaning antibacterial medical endoscope according to claim 1, characterized in that: The thickness of the composite antibacterial coating (2) is between 5 and 10 micrometers, and the composite antibacterial coating (2) is a composite layer of nano-silver particles and quaternary ammonium salt antibacterial agent.

4. The self-cleaning antibacterial medical endoscope according to claim 1, characterized in that: The water inlet end of the external flushing connection pipe (33) is fixedly installed with a fixed connector (34), which is connected to the external flushing liquid injector.

5. The self-cleaning antibacterial medical endoscope according to claim 1, characterized in that: The outer sleeve (30) has an annular chamber (31) inside the end tube near the flushing nozzle (36). The flushing nozzle (36) is connected to the annular chamber (31). The outer sleeve (30) has a liquid-passing chamber (32) inside that is connected to the annular chamber (31). The water outlet end of the outer flushing connecting pipe (33) is fixedly installed on the outer sleeve (30) and connected to the liquid-passing chamber (32).

6. The self-cleaning antibacterial medical endoscope according to claim 1, characterized in that: An inner guide tube (35) is fixedly installed on the inner wall of the end tube near the rinsing nozzle (36) of the outer tube (30). The inner guide tube (35) is used to guide the insertion of the lens (12).

7. The self-cleaning antibacterial medical endoscope according to claim 6, characterized in that: The inner guide cylinder (35) is provided with an inner conical guide chamber (351) that is connected to the outside at both ends. The inner conical guide chamber (351) is a frustum shape that is narrow at the top and wide at the bottom.

8. The self-cleaning antibacterial medical endoscope according to claim 7, characterized in that: A limiting ring (121) is fixedly installed on the surface of the lens (12), and the limiting ring (121) abuts against the cavity wall of the inner conical guide chamber (351).

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