Endoscope disinfection device for otolaryngology department

Abstract

The invention discloses an endoscope disinfection device for the otolaryngology department in the technical field of medical disinfection equipment. The endoscope disinfection device comprises a disinfection machine body; a disinfection treatment area is arranged in the disinfection machine body, the disinfection treatment area comprises a chemical disinfection area, the chemical disinfection area is communicated with a circulation channel, and an injection mechanism for inputting a disinfectant into the circulation channel and a power mechanism for driving fluid in the circulation channel to circularly flow are arranged in the circulation channel; a cavitation nucleus activation mechanism used for generating cavitation nuclei in the chemical disinfection area and a plurality of guide plates are arranged in the chemical disinfection area, placoid scale arrays are arranged on the side walls of the guide plates in the direction opposite to the flowing direction of fluid in the circulation channel, and the placoid scale arrays are of a bionic sharkskin placoid scale structure. According to the scheme, turbulence and the cavitation effect are combined and are mutually overlapped and promoted, so that the cleaning effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical disinfection equipment, and specifically relates to an endoscope disinfection device for otolaryngology. Background Art

[0002] Endoscopes in otolaryngology are indispensable diagnostic and treatment tools in the field of otolaryngology. It can penetrate into narrow and complex cavities such as the ear canal, nasal cavity, and throat, providing doctors with clear visual images to help accurately diagnose diseases such as otitis media, sinusitis, throat tumors, etc. At the same time, it can also assist in minimally invasive surgical operations such as nasal polypectomy and vocal nodule removal. With the continuous progress of medical technology, the frequency and scope of use of otolaryngology endoscopes continue to expand, and they have almost become essential instruments for daily diagnosis and treatment in otolaryngology.

[0003] Since otolaryngology endoscopes directly contact the patient's mucosal tissue and may even enter sterile areas, if not disinfected thoroughly, it is extremely easy to cause cross-infection. For example, pathogens such as bacteria, viruses (such as influenza virus, COVID-19 virus, etc.), and fungi may remain on the surface of the endoscope or in the patient's body fluids and blood. Without effective disinfection, these pathogens will spread between different patients, triggering serious infection events, which not only endanger the health of patients but also increase the difficulty of hospital infection control, bringing huge medical risks and legal risks to medical institutions. Therefore, ensuring the strict disinfection of otolaryngology endoscopes is a key link in ensuring medical safety.

[0004] Although certain progress has been made in the field of otolaryngology endoscope disinfection in the prior art, there are still the following main defects: Otolaryngology endoscopes often include complex structures such as slender pipes, bending parts (such as the insertion part of the laryngoscope), and precision valves. Traditional brushing and soaking methods are difficult to thoroughly clean these hidden areas. For example, the patent with the publication number CN114146202B discloses an endoscope disinfection device for otolaryngology, which brushes the surface of the endoscope through a rolling brush. However, the rolling brush can only act on the exposed surface, and the cleaning effect on hidden areas such as the inside of the pipe and the biopsy channel is limited, greatly affecting the disinfection efficiency and effect. Moreover, chemical disinfectants may remain on the surface of the endoscope or inside the pipe, and enter the patient's body during subsequent use, causing adverse consequences such as allergic reactions and toxic reactions.

[0005] In view of the defects of the prior art, there is an urgent need for a new device that can disinfect otolaryngology endoscopes efficiently, thoroughly, and safely. Summary of the Invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide an endoscope disinfection device for otolaryngology, which combines the advantages of chemical disinfection and physical disinfection, and improves the disinfection effect through the synergistic effect of multiple fields.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] An endoscope disinfection device for otolaryngology, comprising a disinfection body; a disinfection treatment area is arranged inside the disinfection body, the disinfection treatment area includes a physical disinfection area and a chemical disinfection area, a circulation channel is communicated with the chemical disinfection area, an injection mechanism for inputting a disinfectant into the circulation channel and a power mechanism for driving the fluid in the circulation channel to circulate are arranged in the circulation channel, a cavitation nucleus activation mechanism for generating cavitation nuclei in the chemical disinfection area and a plurality of flow guide plates are arranged in the chemical disinfection area, and a dermal denticle array is arranged on the side wall of each flow guide plate along the reverse direction of the fluid flow in the circulation channel, and the dermal denticle array adopts a bionic shark skin dermal denticle structure.

[0009] Working principle:

[0010] When the disinfectant flows at a high speed in the circulation channel, turbulence will be generated when the disinfectant passes through the dermal denticle array on the flow guide plate. The high Reynolds number vortices in the turbulent flow field will reduce the static pressure of the fluid (i.e., the disinfectant) below the saturated vapor pressure, improving the activation efficiency of cavitation nuclei. At the same time, the turbulent pulsation promotes a more uniform distribution of the cavitation bubble group. The instantaneous pressure peak generated by the collapse of the cavitation bubbles and the turbulent shear stress form a vector superposition, generating a shear-impact composite peeling effect on the pollutants on the endoscope to be treated. Through the combination of the turbulent flow and cavitation effects, the two promote each other and superimpose to achieve a unique non-linear enhancement effect.

[0011] Adopting the above solution has the following beneficial effects:

[0012] 1. In this solution, through the combination of turbulent flow and cavitation effects, the turbulent flow can enhance the mixing and shear force of the fluid, making the disinfectant cover the surface and hidden areas of the endoscope more evenly. The design of the bionic shark skin dermal denticle structure can effectively guide the turbulent flow, form high Reynolds number vortices, and reduce the static pressure of the fluid, thereby promoting the activation of cavitation nuclei. The cavitation effect generates instantaneous high pressure and high temperature through the formation and collapse of bubbles, which can mechanically peel off pollutants. The superposition of the pressure peak generated by the collapse of the cavitation bubbles and the turbulent shear stress can thoroughly clean the hidden areas such as the slender pipes, bending parts, and precision valves of the endoscope, solving the problem that is difficult to clean by traditional methods.

[0013] 2. In this solution, through the synergistic effect of physical disinfection and chemical disinfection, the usage amount of chemical disinfectants is reduced, the residual risk is lowered, and allergic and toxic reactions are avoided.

[0014] 3. Compared with traditional methods of generating turbulent flow such as mechanical stirring, the bionic dermal denticle structure in this solution will not cause physical damage to the precision components of the endoscope, avoiding structural fatigue or damage caused by mechanical stress. At the same time, the turbulent pulsation can promote a more uniform distribution of the cavitation bubble group, avoiding the problem that the cavitation effect is concentrated in local areas in traditional methods, thereby achieving a more comprehensive cleaning and disinfection effect.

[0015] Furthermore, the physical disinfection area includes a loading and unloading chamber located at the top of the chemical disinfection area. An ultraviolet lamp layer and a placement mechanism are provided in the loading and unloading chamber. The placement mechanism is used to fix the otorhinolaryngology endoscope into a non-contact part and a contact part respectively in the loading and unloading chamber and the chemical disinfection area, and the ultraviolet lamp layer is used to physically disinfect the non-contact part of the otorhinolaryngology endoscope.

[0016] Beneficial effects: The contact part is in frequent contact with patients and has a high infection risk, requiring more thorough disinfection treatment. By fixing it in the chemical disinfection area, deep cleaning and disinfection are carried out using the turbulent flow and cavitation effect to ensure complete killing of pathogens.

[0017] The non-contact part is mainly the operation part of the doctor, with a relatively low infection risk. Physical disinfection is carried out through the ultraviolet lamp layer, reducing the use of chemical disinfectants while ensuring the disinfection effect.

[0018] The non-contact part is disinfected by ultraviolet rays, significantly reducing the usage amount of chemical disinfectants, lowering costs and environmental pollution.

[0019] Furthermore, the cavitation nucleus activation mechanism includes an ultrasonic generator located at the bottom of the chemical disinfection area.

[0020] Beneficial effects: The ultrasonic generator is located at the bottom of the chemical disinfection area, which can directly introduce high-frequency vibrations into the disinfectant to generate a large number of cavitation nuclei. These cavitation nuclei form, grow and finally collapse in the disinfectant, generating shear forces and microjets, thus forming the cavitation effect.

[0021] Furthermore, the placement mechanism includes several clamping blocks located between adjacent flow guiding plates. Slots are provided on the clamping blocks, and the slots are used to clamp the connecting part between the contact part and the non-contact part of the otorhinolaryngology endoscope.

[0022] Beneficial effects: The slots on the clamping blocks can accurately clamp the connecting part of the endoscope, ensuring that the contact part and the non-contact part are accurately separated and fixed in the chemical disinfection area and the loading and unloading chamber. This design avoids the displacement of the endoscope during the disinfection process and ensures the accuracy of partition disinfection. The contact part is fixed in the chemical disinfection area, which can be fully exposed to the turbulent flow and cavitation effect to ensure thorough cleaning and disinfection. The non-contact part is fixed in the loading and unloading chamber, which can be fully exposed to the irradiation of the ultraviolet lamp layer for efficient physical disinfection.

[0023] Furthermore, the injection mechanism includes a first liquid storage chamber and a second liquid storage chamber, which are used to store disinfectant and sterile water respectively. The first liquid storage chamber and the second liquid storage chamber are both connected to the circulation channel respectively, and a first valve and a second valve are provided on the paths where the first liquid storage chamber and the second liquid storage chamber are connected to the circulation channel.

[0024] Beneficial effects: By controlling the first valve and the second valve, the disinfectant and sterile water can be accurately injected into the circulation channel as needed, ensuring that the usage amounts of the disinfectant and sterile water achieve the best effect and avoiding waste. After the disinfection process is completed, by injecting sterile water for rinsing, the disinfectant residues on the surface of the endoscope and inside the pipeline can be effectively removed, reducing the risk of chemical residues.

[0025] Furthermore, the power mechanism includes a circulation pump, and the circulation pump is located on the connection path between the circulation channel and the chemical disinfection area.

[0026] Beneficial effects: The circulation pump can quickly drive the disinfectant to flow in the circulation channel, ensuring that the disinfectant can be evenly distributed throughout the chemical disinfection area, significantly improving the disinfection efficiency. The high-speed fluid flow provided by the circulation pump can enhance the turbulence effect generated by the placoid scale array on the deflector plate, further improving the activation efficiency of cavitation nuclei and promoting the cavitation effect.

[0027] Furthermore, a waste liquid collection mechanism is provided at the bottom of the circulation channel. The waste liquid collection mechanism includes a waste liquid tank, the waste liquid tank is connected to the circulation channel, and a third valve is provided on the connection path between the waste liquid tank and the circulation channel.

[0028] Beneficial effects: The waste liquid collection mechanism can timely collect the waste liquid in the circulation channel, prevent the waste liquid from accumulating in the circulation channel, and avoid affecting the disinfection effect and the operation of the equipment. Through the setting of the waste liquid tank, the waste liquid can be centrally collected and treated, reducing the residue of the waste liquid in the equipment and lowering the risk of secondary pollution.

[0029] Furthermore, a vacuum drying mechanism is also provided in the circulation channel, and the circulation channel is connected to the outside; the vacuum drying mechanism includes a vacuum pump and a fourth valve, the fourth valve is located on the connection path between the circulation channel and the outside, and the vacuum pump is used to evacuate the circulation channel.

[0030] Beneficial effects: The vacuum pump can quickly extract the moisture in the circulation channel to achieve efficient drying, ensuring that the endoscope is completely dry before use and avoiding the growth of microorganisms caused by moisture residue. Vacuum drying can ensure that every part of the endoscope, including hidden areas such as slender pipelines and precision valves, can be evenly dried, avoiding local moisture residue.

[0031] Furthermore, both the clamping block and the deflector plate are made of transparent materials.

[0032] Beneficial effects: The clamping block and deflector plate made of transparent materials can ensure that the ultraviolet light can penetrate smoothly, enabling the ultraviolet light to not only disinfect the non-contact part but also enter the chemical disinfection area to assist the disinfectant in disinfecting the contact part. Through the penetration of light, the ultraviolet light can cover more parts of the endoscope, including the contact part, forming a double guarantee of physical disinfection and chemical disinfection and improving the disinfection effect.

[0033] The synergistic effect of ultraviolet light and chemical disinfectants can significantly improve the disinfection efficiency, reduce the disinfection time, and improve the usage efficiency of the equipment.

[0034] Furthermore, a non-toxic fluorescent dye is mixed in the first liquid storage cavity; it also includes a collection unit and a control unit; the collection unit is used to collect the distribution of the disinfectant in the chemical disinfection area; the control unit is used to judge whether the disinfectant is evenly distributed and whether there is any residue of the disinfectant based on the distribution of the disinfectant, and control the operation of the circulation pump, the ultrasonic generator, and the second valve.

[0035] Beneficial effects: When chemical disinfection is carried out in the circulation channel, the collection unit can excite the non-toxic fluorescent dye to emit light through the light emitted by the ultraviolet lamp layer, so as to obtain the fluorescent image of the disinfectant. The control unit judges whether the disinfectant is evenly distributed on the endoscope based on the fluorescent image, and then adjusts the power of the circulation pump and / or the ultrasonic generator to make the disinfectant evenly distributed in the chemical disinfection area.

[0036] When the disinfection and cleaning are completed, the control unit also judges whether there is any residue of the disinfectant through the collected fluorescent image, and controls the second valve to open again, input sterile water into the circulation channel again for rinsing until there is no residue of the disinfectant.

[0037] By mixing a non-toxic fluorescent dye in the first liquid storage cavity, the collection unit can use the light emitted by the ultraviolet lamp layer to excite the fluorescent dye to emit light, and monitor the distribution of the disinfectant in the chemical disinfection area in real time to judge whether the disinfectant is evenly distributed. This real-time monitoring ensures that the disinfectant is evenly distributed throughout the chemical disinfection area, avoiding too high or too low local concentration and improving the disinfection effect.

[0038] By mixing a non-toxic fluorescent dye in the first liquid storage cavity and setting a collection unit and a control unit, the distribution of the disinfectant can be monitored in real time, the power of the circulation pump and the ultrasonic generator can be automatically adjusted to ensure that the disinfectant is evenly distributed and the residue is completely removed. This design significantly improves the disinfection effect, reduces the risk of chemical residue and cross-infection, protects the precise structure of the endoscope at the same time, and improves the automation degree and operation convenience of the equipment. At the same time, the dual functions of the ultraviolet lamp layer are efficiently utilized, making the ultraviolet light both perform physical disinfection and assist in monitoring the distribution of the disinfectant, optimizing the equipment structure and function. Brief Description of the Drawings

[0039] Figure 1 It is a three-dimensional structure schematic diagram of the endoscope disinfection device for otolaryngology of the present invention.

[0040] Figure 2 is Figure 1 the front view of

[0041] Figure 3 is Figure 2Cross-sectional view in the A-A direction in the [specific context].

[0042] Figure 4 is Figure 2 Cross-sectional view in the B-B direction in the [specific context].

[0043] Figure 5 This is a partial schematic diagram of the placoid scale array in the endoscopic disinfection device for otolaryngology of the present invention.

[0044] The reference numerals in the accompanying drawings of the specification include: 1, disinfection body; 2, sealing door; 101, first liquid storage chamber; 102, second liquid storage chamber; 103, first valve; 104, second valve; 105, circulation channel; 106, third valve; 107, waste liquid tank; 108, groove; 109, picking and placing cavity; 110, ultraviolet lamp layer; 111, image sensor; 112, ultrasonic generator; 113, flow guiding plate; 114, placoid scale array; 115, circulation pump; 116, fourth valve; 117, tenon block; 118, clamping block; 119, clamping groove. Detailed implementation mode

[0045] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0047] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0048] The following is a further detailed description through specific implementation modes:

[0049] The embodiment is basically as shown in the attached Figures 1 - 5As shown: An endoscope disinfection device for otolaryngology mainly includes a disinfection body 1, which is internally provided with a disinfection treatment area, and the disinfection treatment area is divided into a physical disinfection area and a chemical disinfection area.

[0050] Specifically, in combination with the attached Figure 3 As shown, the physical disinfection area includes a pick-up and placement cavity 109. Figure 3 A sealing door 2 is rotatably connected to the left side of the pick-up and placement cavity 109 in the figure. The operator takes out or places the endoscope into the pick-up and placement cavity 109 by opening the sealing door 2. The pick-up and placement cavity 109 is located above the chemical disinfection area. An ultraviolet lamp layer 110 and a placement mechanism are arranged in the pick-up and placement cavity 109. The placement mechanism is used to fix the otolaryngology endoscope into the pick-up and placement cavity 109 and the chemical disinfection area respectively by dividing it into a non-contact part and a contact part.

[0051] In this embodiment, the contact part refers to the part of the endoscope that directly contacts the patient's mucosal tissue during use. These parts have a relatively high risk of infection and need to be disinfected key points. For example, the insertion part, which is the frontmost part of the endoscope and is used to insert into the patient's ear canal, nasal cavity or throat. The bending part is located at the end of the insertion part and is used to adapt to the bending of the human body cavity to help the doctor observe and operate better.

[0052] The non-contact part refers to the part of the endoscope that does not directly contact the patient's mucosal tissue during use. These parts have a relatively low risk of infection, but still need to be properly disinfected. For example, the operation part is located at the rear end of the endoscope and is the part where the doctor controls the operation of the endoscope. It is mainly contacted by the doctor's hand and does not directly contact the patient.

[0053] The ultraviolet lamp layer 110 is used to physically disinfect the non-contact part of the otolaryngology endoscope. In this embodiment, the ultraviolet lamp layer 110 is located at the top of the pick-up and placement cavity 109.

[0054] The chemical disinfection area is connected with a circulation channel 105. Specifically, in this embodiment, the circulation channel 105 is in a "return" shape structure, and the chemical disinfection area coincides with the non-corner part in the circulation channel 105, specifically directly below the pick-up and placement cavity 109. An injection mechanism for inputting disinfectant into the circulation channel 105 and a power mechanism for driving the fluid in the circulation channel 105 to circulate are arranged in the circulation channel 105.

[0055] Specifically, the injection mechanism includes a first liquid storage cavity 101 and a second liquid storage cavity 102. The first liquid storage cavity 101 and the second liquid storage cavity 102 are opened at the top of the circulation channel 105. The first liquid storage cavity 101 and the second liquid storage cavity 102 are used to store disinfectant and sterile water respectively. Preferably, in this embodiment, the disinfectant is mixed with a non-toxic fluorescent dye, such as sodium fluorescein. The first liquid storage cavity 101 and the second liquid storage cavity 102 are respectively communicated with the circulation channel 105, and a first valve 103 and a second valve 104 are respectively installed on the communication paths between the first liquid storage cavity 101 and the second liquid storage cavity 102 and the circulation channel 105.

[0056] As shown in the attached Figure 4 figures, the power mechanism includes a circulation pump 115, which is installed in the circulation channel 105.

[0057] In the chemical disinfection area, there is a cavitation nucleus activation mechanism for generating cavitation nuclei in the chemical disinfection area and several flow guiding plates 113. On the side walls of the flow guiding plates 113, a dermal denticle array 114 is arranged along the reverse direction of the fluid flow in the circulation channel 105. The dermal denticle array 114 is integrally provided with the flow guiding plate 113, and the dermal denticle array 114 adopts a biomimetic shark skin dermal denticle structure.

[0058] Specifically, the cavitation nucleus activation mechanism includes an ultrasonic generator 112, which is located at the bottom of the chemical disinfection area and is used to generate cavitation nuclei in the chemical disinfection area to enhance the cavitation effect. It also includes several ultrasonic transducers. The ultrasonic transducers adopt piezoelectric ceramic disk transducers, and the ultrasonic transducer array is distributed at the bottom of the chemical disinfection area.

[0059] Specifically, in combination with the attached Figure 3 attachments Figure 4 and the attached Figure 5 figures, the placement mechanism includes several clamping blocks 118, which are located between adjacent flow guiding plates 113. The clamping blocks 118 and the tops of the flow guiding plates 113 are integrally provided. Slots 119 are formed on the clamping blocks 118, and the slots 119 are used to clamp the connecting part between the contact part and the non-contact part of the ENT endoscope. Preferably, in this embodiment, both the clamping blocks 118 and the flow guiding plates 113 are made of transparent materials. Preferably, in this embodiment, a tenon block 117 is welded and fixed to the top of the outermost flow guiding plate 113. The tenon block 117 is rectangular. Grooves 108 are formed at the tops of the two side walls of the chemical disinfection area, and the grooves 108 are used to engage with the tenon block 117 to facilitate the quick disassembly and fixation of the flow guiding plate 113.

[0060] Preferably, a waste liquid collection mechanism is provided at the bottom of the circulation channel 105. The waste liquid collection mechanism includes a waste liquid tank 107 opened at the bottom of the circulation channel 105. The waste liquid tank 107 is communicated with the circulation channel 105, and a third valve 106 is installed on the communication path between the waste liquid tank 107 and the circulation channel 105.

[0061] Preferably, a vacuum drying mechanism is also provided in the circulation channel 105, and the circulation channel 105 is communicated with the outside; the vacuum drying mechanism includes a vacuum pump and a fourth valve 116. The fourth valve 116 is located on the communication path between the circulation channel 105 and the outside, and the vacuum pump is used to evacuate the inside of the circulation channel 105.

[0062] Preferably, it further includes a collection unit and a control unit; the collection unit is used to collect the distribution of the disinfectant in the chemical disinfection area. In this embodiment, the collection unit is integrated with multiple groups of image sensors 111, and the image sensors 111 are used to collect fluorescence images in all directions in the chemical disinfection area, so as to be integrated into a three-dimensional fluorescence image; the control unit is used to judge whether the disinfectant is evenly distributed and whether there is residual disinfectant based on the distribution of the disinfectant, and control the operation of the circulation pump 115, the ultrasonic generator 112 and the second valve 104. In this embodiment, the control unit is electrically connected to electrical devices such as the first valve 103, the third valve 106, the fourth valve 116, the ultrasonic transducer, the vacuum pump, and the ultraviolet lamp layer 110.

[0063] Specifically, when chemical disinfection is carried out in the circulation channel 105, the collection unit can excite the non-toxic fluorescent dye to emit light through the light emitted by the ultraviolet lamp layer 110, so as to obtain fluorescence images in all directions of the disinfectant. The control unit integrates based on the fluorescence images to form a three-dimensional fluorescence image, judges whether the disinfectant is evenly distributed on the endoscope according to the three-dimensional fluorescence image, and then adjusts the power of the circulation pump 115 and / or the ultrasonic generator 112 to make the disinfectant evenly distributed in the chemical disinfection area.

[0064] After the disinfection and cleaning are completed, the control unit also judges whether there is residual disinfectant through the collected fluorescence images, and controls the second valve 104 to open again, and re-inputs sterile water into the circulation channel 105 for flushing until there is no residual disinfectant.

[0065] The specific implementation process is as follows:

[0066] Open the sealing door 2, take out the flow guide plate 113 from the chemical disinfection area along the groove 108, then insert the otorhinolaryngology endoscope to be processed (hereinafter referred to as the endoscope) into the card slot 119 along the gap between the flow guide plates 113, and then put the flow guide plate 113 back into the chemical disinfection area, and fix the flow guide plate 113 by the engagement of the tenon block 117 and the groove 108.

[0067] Close the sealing door 2, start the second valve 104 and the ultraviolet lamp layer, so that the sterile water in the second liquid storage chamber 102 enters the circulation channel 105, and performs the first preliminary flushing to flush away larger dirt such as body fluids, tissues and secretions, and the ultraviolet rays physically disinfect the endoscope. When the sterile water soaks the guide plate 113 (after a preset time), the control unit starts the circulation pump 115 and the ultrasonic generator 112, and the circulation pump 115 drives the sterile water to flow at a high speed in the circulation channel 105, and generates a turbulent field when passing through the shield scale array 114 on the guide plate 113. The synergistic effect of turbulence and cavitation effect is used to flush away dirt on the endoscope. The high Reynolds number vortex in the turbulent field can reduce the static pressure of the fluid to below the saturated vapor pressure, which can improve the activation efficiency of the cavitation nucleus (cavitation nucleus refers to tiny bubbles or cavitation bubbles in the liquid, and its formation and existence are the core factors of the liquid cavitation phenomenon). At the same time, the cavitation generated by the ultrasonic generator 112 is used to flush and peel off the dirt by using the micro-jets generated by the collapse of the cavitation bubbles, while promoting the shear stress in the turbulent field to improve the cleaning effect.

[0068] After the first round of flushing is completed, the control unit activates the third valve 106 to discharge the liquid in the circulation channel 105 into the waste liquid tank 107 for subsequent centralized processing, and then closes the third valve 106.

[0069] The control unit starts the first valve 103 to allow the disinfectant in the first liquid storage chamber 101 to enter the circulation channel 105 until the disinfectant submerges the guide plate 113. The control unit then starts the circulation pump 115 and the ultrasonic generator 112 again, uses vortex shear to accelerate cavitation, and uses microjets and shock wave coupling to produce a shear-shock composite stripping effect, thereby promoting the diffusion of the disinfectant and the disinfection effect.

[0070] At the same time, the control unit uses the fluorescent images in all directions collected in real time by the acquisition unit to integrate into a three-dimensional fluorescent image to determine whether the disinfectant is evenly distributed. If it is unevenly distributed, the control unit increases the power of the circulation pump 115, thereby increasing the Reynolds number of the fluid and promoting turbulent flow. Alternatively, the control unit increases the power of the ultrasonic generator 112 to promote the generation of cavitation and accelerate the uniform diffusion of the disinfectant. Specifically, when the control unit determines that the disinfectant is locally uneven through the three-dimensional fluorescent image, the control unit controls the ultrasonic transducer corresponding to the locally uneven part to work, thereby enhancing local cavitation in the area. Through fluorescent image feedback and intelligent control, dynamic optimization of disinfectant distribution is achieved to ensure the uniformity and reliability of the disinfection effect.

[0071] After the disinfection is completed, the control unit opens the third valve 106 again to discharge the liquid in the circulation channel 105 into the waste liquid tank 107, and then closes the third valve 106.

[0072] Then, the control unit starts the second valve 104 again, allowing the sterile water in the second liquid storage chamber 102 to enter the circulation channel 105 for a second rinse to wash away the disinfectant. After the rinse, the control unit monitors the residual disinfectant in real time through the acquisition unit and controls the operation of the circulation pump 115, the ultrasonic generator 112, the ultrasonic transducer, etc., until there is no residual disinfectant, and then discharges all the liquid in the circulation channel 105 into the waste liquid tank 107.

[0073] Finally, the control unit controls the fourth valve 116 and the vacuum pump for vacuum drying to evaporate the moisture in the endoscope and the circulation channel 105. After the drying, the control unit shuts down all the equipment, and the staff opens the sealing door 2 to take out the endoscope.

[0074] In this embodiment, physical disinfection (ultraviolet) and chemical disinfection (disinfectant) are combined, and a differential treatment strategy is adopted for different infection risk areas (contact part and non-contact part).

[0075] The distribution of the disinfectant is monitored in real time through fluorescence images, and the dynamic adjustment of the circulation pump 115 and ultrasonic waves is combined to ensure uniform disinfection effect and no residue.

[0076] For areas with uneven disinfectant distribution, precise cavitation enhancement is achieved by controlling local ultrasonic transducers to avoid energy waste caused by the increase of the overall power.

[0077] The above device is used for simulation experiments:

[0078] Experimental purpose:

[0079] Verify the cleaning effect of the synergistic effect of turbulence and cavitation on hidden areas.

[0080] Evaluate the residual risk of chemical disinfectants and the rinsing efficiency.

[0081] Test the damage degree of the device to the precision components of the endoscope.

[0082] Compare the comprehensive performance of the traditional disinfection methods (such as mechanical brushing and immersion method) with this device.

[0083] Experimental grouping and control

[0084]

[0085] Experimental method:

[0086] Cleaning effect test

[0087] Simulated pollutants:

[0088] Artificial pollutants: blood-protein mixture (simulated body fluid), bacterial biofilm (Escherichia coli, Staphylococcus aureus).

[0089] Endoscopic model: 3D printed otorhinolaryngology endoscope (including complex structures such as slender pipes, bending parts, valves, etc.).

[0090] Detection methods:

[0091] ATP bioluminescence method: Detect the residual amount of pollutants (RLU value).

[0092] Colony counting method: Take samples for culture after disinfecting the biofilm, and calculate the bactericidal rate (Log10 reduction value).

[0093] Endoscopic imaging: Observe the cleanliness of hidden areas (such as the inner wall of the pipe) through the endoscopic camera.

[0094] Detection of disinfectant residue:

[0095] Fluorescent labeling method: Utilize the sodium fluorescein mixed in the disinfectant, and quantitatively analyze the residual amount through a three-dimensional fluorescence imaging system.

[0096] High performance liquid chromatography (HPLC): Detect the residual concentration of the active ingredient of the disinfectant (such as peracetic acid).

[0097] Cytotoxicity experiment: Treat human mucosal epithelial cells with the residual liquid, and detect the cell survival rate (CCK-8 method).

[0098] Assessment of instrument damage:

[0099] Surface topography analysis: Observe the scratches or abrasions on the surface of the endoscope (such as the bending part) by scanning electron microscopy (SEM).

[0100] Fatigue test: After disinfecting 100 times repeatedly, test the mechanical properties of the endoscope (such as the flexibility of the bending part and the sealing performance of the valve).

[0101] Verification of real-time control effect:

[0102] Dynamic regulation experiment: Artificially create uneven distribution of local disinfectant during the disinfection process (such as covering some areas), and observe whether the control unit can achieve uniform coverage by adjusting the power of the circulation pump or local ultrasonic transducers.

[0103] Energy consumption comparison: Record the energy consumption (electricity, disinfectant consumption) of the experimental group and the control group for single disinfection.

[0104] Experimental procedures:

[0105] Pretreatment: Immerse the endoscopic model in artificial pollutants for 24 hours to simulate the clinical pollution scenario.

[0106] Group treatment: Perform disinfection operations according to the methods of the experimental group and the control group respectively.

[0107] Data collection:

[0108] Cleaning rate: Quantitative detection of pollutants before and after disinfection.

[0109] Residual amount: Fluorescence imaging and HPLC analysis after rinsing.

[0110] Injury to instruments: SEM observation and functional testing.

[0111] Time and energy consumption: Record the single disinfection cycle and resource consumption.

[0112] Data analysis: Use statistical methods (such as ANOVA) to compare the differences between groups, and set the significance level as p < 0.05.

[0113] Experimental results:

[0114]

[0115]

[0116] Conclusion: By remodeling the hydrodynamic characteristics through the bionic structure of shark skin placoid scales, a directional vortex network is constructed during the circulation of the disinfectant, achieving full - coverage cleaning inside complex pipelines for the first time. This "fluid sculpting" technology can accurately deliver the disinfectant to dead corners such as bends and valve gaps that are inaccessible by traditional methods without mechanical contact, greatly improving the cleaning effect.

[0117] The above are only embodiments of the present invention. Specific structures and / or common knowledge such as characteristics well - known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. An ENT endoscope disinfection device, comprising a disinfection body (1); a disinfection treatment area is provided in the disinfection body (1), the disinfection treatment area includes a chemical disinfection area, and is characterized in that: The chemical disinfection area is connected to a circulation channel (105), and an injection mechanism for inputting disinfectant into the circulation channel (105) and a power mechanism for driving the circulation flow of fluid in the circulation channel (105) are arranged in the circulation channel (105). A cavitation nucleus activation mechanism for generating cavitation nuclei in the chemical disinfection area and a plurality of guide plates (113) are arranged in the chemical disinfection area. The side walls of the guide plates (113) are provided with shield scale arrays (114) in the opposite direction of the flow of fluid in the circulation channel (105), and the shield scale arrays (114) adopt a bionic shark skin shield scale structure.

2. The ENT endoscope disinfection device according to claim 1, characterized in that: The disinfection treatment area also includes a physical disinfection area, which includes a pick-and-place chamber (109). The pick-and-place chamber (109) is located at the top of the chemical disinfection area. An ultraviolet lamp layer (110) and a placement mechanism are arranged in the pick-and-place chamber (109). The placement mechanism is used to divide the ENT endoscope into a non-contact part and a contact part and fix them in the pick-and-place chamber (109) and the chemical disinfection area respectively. The ultraviolet lamp layer (110) is used to physically disinfect the non-contact part of the ENT endoscope.

3. The ENT endoscope disinfection device according to claim 2, characterized in that: The cavitation nucleus activation mechanism comprises an ultrasonic generator (112), which is located at the bottom of the chemical disinfection area.

4. The ENT endoscope disinfection device according to claim 3, characterized in that: The placement mechanism comprises a plurality of clamping blocks (118), wherein the clamping blocks (118) are located between adjacent guide plates (113), and each clamping block (118) is provided with a clamping groove (119), and the clamping groove (119) is used to clamp the connection portion between the contact portion and the non-contact portion on the ENT endoscope.

5. The ENT endoscope disinfection device according to claim 4, characterized in that: The injection mechanism comprises a first liquid storage chamber (101) and a second liquid storage chamber (102), the first liquid storage chamber (101) and the second liquid storage chamber (102) being used to store disinfectant and sterile water respectively, the first liquid storage chamber (101) and the second liquid storage chamber (102) being respectively connected to a circulation channel (105), and a first valve (103) and a second valve (104) being respectively arranged on the communication path between the first liquid storage chamber (101) and the second liquid storage chamber (102) and the circulation channel (105).

6. The ENT endoscope disinfection device according to claim 5, characterized in that: The power mechanism comprises a circulation pump (115), and the circulation pump (115) is located on the communication path between the circulation channel (105) and the chemical disinfection area.

7. The ENT endoscope disinfection device according to claim 6, characterized in that: A waste liquid collection mechanism is provided at the bottom of the circulation channel (105), the waste liquid collection mechanism comprising a waste liquid tank (107), the waste liquid tank (107) is connected to the circulation channel (105), and a third valve (106) is provided on the communication path between the waste liquid tank (107) and the circulation channel (105).

8. The ENT endoscope disinfection device according to claim 7, characterized in that: A vacuum drying mechanism is also provided in the circulation channel (105), and the circulation channel (105) is connected to the outside. The vacuum drying mechanism comprises a vacuum pump and a fourth valve (116), and the fourth valve (116) is located on the path connecting the circulation channel (105) and the outside. The vacuum pump is used to evacuate the circulation channel (105).

9. The ENT endoscope disinfection device according to claim 8, characterized in that: The block (118) and the guide plate (113) are both made of transparent material.

10. The ENT endoscope disinfection device according to claim 9, characterized in that: The first liquid storage chamber (101) contains a mixture of non-toxic fluorescent dyes; and further comprises a collection unit and a control unit; the collection unit is used to collect the distribution of the disinfectant in the chemical disinfection area; the control unit is used to determine whether the disinfectant is evenly distributed and whether the disinfectant remains based on the distribution of the disinfectant, and to control the operation of the circulation pump (115), the ultrasonic generator (112) and the second valve (104).

Images