A laminar flow pressure-equalizing sealed cabin for pet surgery

Abstract

The present application relates to the field of pet surgery, especially to a clean cabin laminar flow pressure-equalizing sealed cabin body for pet surgery, which comprises a cabin body mechanism, including a square tube frame, a surrounding piece located at the top of the square tube frame, a lower inner container piece installed inside the surrounding piece, which is used as a surgery chamber, a supporting piece located at the inner wall bottom of the lower inner container piece, and a collecting piece located at the bottom of the supporting piece, which is used for collecting waste liquid generated during the surgery, the outer side of the collecting piece is provided with an air return groove, the inner wall top of the lower inner container piece is installed with an LED lamp for lighting, and the outer wall of the lower inner container piece is provided with a wind speed sensor mounting bracket. The one-way laminar flow field formed by the vertical air supply of the top air outlet hole plate and the air return of the air return groove makes the air flow in the surgery chamber uniform, vortex-free and dead angle-free, greatly reduces the concentration of microorganisms and particulate pollutants in the air, and effectively prevents the risk of wound infection during the pet surgery.

Description

Technical Field

[0001] This invention relates to the field of pet surgery, and in particular to a laminar flow pressure equalization and sealing chamber for pet surgery cleanrooms. Background Technology

[0002] In the field of existing pet surgical equipment technology, the requirements for cleanliness, aseptic control and infection prevention in pet surgery are increasing. The laminar flow pressure equalization and sealing chamber of pet surgery is an integrated air purification and surgical operation platform specially designed for pet surgery.

[0003] Existing pet surgical chambers lack a laminar flow pressure equalization structure that combines top vertical air supply with bottom return air channels to guide the return air. This results in turbulent airflow, eddies, and dead zones within the surgical chamber, making it difficult to effectively reduce the concentration of microorganisms and particulate matter in the air, leading to a high risk of surgical wound infection in pets. In addition, existing technologies also have significant deficiencies in areas such as sealed waste collection, coordinated design of lighting and laminar flow, sealed maintenance of the ventilation system, and biosafety protection of exhaust air. These deficiencies make it difficult to meet the comprehensive requirements of modern pet surgery for high cleanliness and high safety. Therefore, a laminar flow pressure equalization and sealed chamber for pet surgical cleanrooms is proposed. Summary of the Invention

[0004] In view of the problems mentioned above or in the prior art, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a laminar flow pressure equalization and sealing chamber for pet surgery cleanrooms.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including, The cabin structure includes a square tube frame and a enclosure located on top of the square tube frame; The lower inner liner installed inside the enclosure is used as an operating chamber. The support member located at the bottom of the inner wall of the lower inner liner and the collection member located at the bottom of the support member are used to collect waste fluid generated during the operation. The outer side of the collecting component is provided with a return air duct; the top of the inner wall of the lower inner liner is equipped with an LED light for illumination; and a wind speed sensor mounting bracket is provided on the outer wall of the lower inner liner; and, The ventilation mechanism includes an upper inner liner installed on top of the lower inner liner, a front cover installed at the front of the upper inner liner, an air inlet installed on one side of the interior of the upper inner liner, and an exhaust installed on the other side of the interior of the upper inner liner.

[0007] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom of the present invention, the square tube is equipped with casters and support feet at the four bottom corners to facilitate the movement and placement of the sealing chamber. The inner wall of the top of the square tube is fixed with an inner liner fixing plate, and the lower inner liner is connected and fixed to the square tube through the inner liner fixing plate.

[0008] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom of the present invention, the enclosure includes an outer right side plate and an outer left side plate installed on both sides of the square tube frame, a rear sealing plate is provided at the rear between the outer right side plate and the outer left side plate, counterweight plate baffles are provided on both sides of the outer wall of the rear sealing plate, and a counterweight plate body is installed between the two counterweight plate baffles.

[0009] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical clean chamber of the present invention, the lower inner liner includes a lower inner liner body, an inner liner reinforcing rib is installed at the rear of the lower inner liner body, a tabletop support strip is provided at the bottom of the inner wall of the lower inner liner body, a tabletop hook is fixed on the surface of the tabletop support strip, an inner liner crossbeam is provided at the top of the lower inner liner body, and an air outlet plate is installed on the outer side of the inner liner crossbeam. The LED light is installed at the bottom of the air outlet plate.

[0010] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom of the present invention, the supporting component includes an operating table installed on the tabletop support strip, the bottom of the operating tabletop is provided with tabletop reinforcing ribs, a folding handle is installed on the outer edge of the surface of the operating tabletop, and a hand rest is installed on the front of the operating tabletop.

[0011] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom of the present invention, the collection component includes a liquid collection tank disposed at the bottom of the operating table, a sanitary ball valve is installed at the bottom of the liquid collection tank, and a sewage valve sanitary connector is connected to the bottom of the sanitary ball valve. The recovery tank is connected to the front of the liquid collection tank.

[0012] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical clean chamber of the present invention, the upper inner liner includes an upper inner liner body, a filter front cover plate is installed at the front of the upper inner liner body, a front top cover plate is installed at the front of the filter front cover plate, an inner inclined panel is installed at the bottom of the front top cover plate, a middle panel is provided at the outer end of the inner inclined panel, and an air inlet is also provided at the top of the upper inner liner body.

[0013] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom of the present invention, the front cover includes a right glass cover and a left glass cover respectively installed on the bottom sides of the front upper cover. Glass clips are fixed on both sides of the inner wall of the front upper cover, and the two glass clips together hold a glass panel. A glass handle is installed on the surface of the glass panel. Glass baffles are provided on both sides of the glass panel, and the glass baffles are fixed to the inside of the glass cover.

[0014] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical clean chamber of the present invention, the air inlet component includes an air inlet filter installed inside the lower part of the upper inner liner body, a high-efficiency air inlet hood is installed on the top of the air inlet filter, a diffuser is installed inside the high-efficiency air inlet hood, and an exhaust fan is connected to the top of the high-efficiency air inlet hood. The inner wall of the upper inner liner body is equipped with filter clamping bolts for fixing the air inlet filter.

[0015] As a preferred embodiment of the laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom of the present invention, the exhaust component includes an exhaust frame, an exhaust filter is installed on the top of the exhaust frame, and an exhaust port flange is provided on the top of the exhaust filter.

[0016] The beneficial effects of the laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom of this invention are as follows: Firstly, the unidirectional laminar flow field formed by vertical air supply through the top air outlet plate and the return air guided by the return air duct ensures uniform airflow within the surgical chamber, free of eddies and dead zones, significantly reducing the concentration of microorganisms and particulate pollutants in the air and effectively preventing wound infection risks during pet surgery. Secondly, the closed waste liquid collection system, consisting of the operating table, collection tank, recovery tank, and sanitary ball valve, can promptly and safely discharge waste liquids such as blood and irrigation fluid generated during surgery, preventing waste liquid accumulation or overflow into the external environment, significantly improving surgical hygiene and the cleanliness of the operating environment. Thirdly, LED lights installed at the bottom of the air outlet plate ensure sufficient, uniform, and unobstructed lighting in the surgical area while avoiding interference with the laminar airflow. Simultaneously, the counterweight plate is fixed to the rear sealing plate by a baffle strip, balancing the overturning moment that may occur during operation at the front of the chamber, improving the overall safety of the machine. Finally, the combination of casters and outriggers allows the cabin to move flexibly between different operating rooms and to be placed stably after positioning. The structural design of the inner liner fixing plate, inner liner reinforcing rib, and folding handle facilitates the disassembly, cleaning and maintenance of the internal components. Overall, it achieves a comprehensive effect of high cleanliness, safe operation and convenient maintenance, and is particularly suitable for pet surgical scenarios with strict infection control requirements. Through the synergistic action of the exhaust fan, inlet filter, high-efficiency air inlet hood, and diffuser, fresh air from outside is filtered, uniformly distributed, and smoothly delivered into the operating room. This effectively avoids problems such as excessively high local wind speeds or airflow deviation caused by centralized air supply, ensuring the uniformity and stability of laminar airflow and significantly improving the air cleanliness of the surgical area. Secondly, the exhaust frame and exhaust filter in the exhaust system filter the exhaust air before it is discharged externally through the exhaust flange. This maintains an appropriate pressure gradient within the chamber and prevents pathogens, odors, or aerosols that may be generated during surgery from directly spreading into the indoor environment, effectively ensuring the biosafety of the operators and the surrounding space. Thirdly, the filter front cover, front top cover, and filter clamping bolts in the upper inner liner ensure that the inlet filter is firmly clamped and sealed, while facilitating daily inspection and quick replacement. This solves the problems of filter bypass leakage and maintenance difficulties, reducing the risk of cleanliness degradation during long-term operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the laminar flow pressure equalization and sealing chamber for pet surgery.

[0019] Figure 2 A schematic diagram of the rear structure of the laminar flow pressure equalization and sealing chamber of a pet surgical cleanroom.

[0020] Figure 3 A schematic diagram of the rear structure of the lower inner liner of the laminar flow pressure equalization and sealing chamber in a pet surgical cleanroom.

[0021] Figure 4 A schematic diagram of the explosive structure of the support components in the laminar flow pressure equalization and sealing chamber of a pet surgical cleanroom.

[0022] Figure 5 A partial structural diagram of the lower inner liner of the laminar flow pressure equalization and sealing chamber in a pet surgical cleanroom.

[0023] Figure 6 A schematic diagram of the collection components in the laminar flow pressure equalization and sealing chamber of a pet surgery cleanroom.

[0024] Figure 7 An exploded structural diagram of the air exchange mechanism in the laminar flow pressure equalization and sealed chamber of a pet surgical cleanroom.

[0025] In the diagram: 100, cabin structure; 101, square tube frame; 101a, casters; 101b, support legs; 101c, inner liner fixing plate; 102, enclosure component; 102a, outer right side plate; 102b, outer left side plate; 102c, rear sealing plate; 102d, counterweight plate baffle; 102e, counterweight plate body; 103, lower inner liner component; 103a, lower inner liner body; 103b, inner liner reinforcing rib; 103c, Countertop support strip; 103d, Countertop hook; 103e, Inner liner crossbeam; 103f, Air outlet plate; 104, Support component; 104a, Work surface; 104b, Countertop reinforcing rib; 104c, Folding handle; 104d, Handrest; 105, Collection component; 105a, Liquid collection tank; 105b, Sanitary ball valve; 105c, Sewage valve sanitary connector; 106, Return air duct; 107. LED light; 108. Wind speed sensor mounting bracket; 200. Ventilation mechanism; 201. Upper inner liner; 201a. Upper inner liner body; 201b. Filter front cover; 201c. Front top cover; 201d. Inner sloping panel; 201e. Middle panel; 201f. Air inlet; 202. Front cover; 202a. Right side glass cover; 202b. Left side glass cover; 202c. Glass clip; 202d. Glass panel; 202e. Glass handle; 202f. Glass baffle; 203. Air inlet component; 203a. Air inlet filter; 203b. High-efficiency air inlet hood; 203c. Diffuser; 203d. Exhaust fan; 203e. Filter clamping bolt; 204. Exhaust component; 204a. Exhaust frame; 204b. Exhaust filter; 204c. Exhaust port flange. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Example 1, referring to Figures 1-6 This is the first embodiment of the present invention, which provides a laminar flow pressure equalization and sealing chamber for pet surgery, comprising a chamber structure 100. This chamber structure 100 serves as the foundation for overall support and functional integration. Through the coordinated operation of its constituent units, it solves the problems of turbulent airflow, contaminant diffusion, and inconvenient operation within traditional pet surgery chambers, achieving a clean, pressure equalization, and sealed surgical environment, effectively reducing the risk of postoperative infection.

[0028] Specifically, the cabin structure 100 includes a square tube frame 101 and a enclosure 102 located on top of the square tube frame 101. The square tube frame 101 provides a stable skeletal support, while the enclosure 102 encloses and protects the internal structure. The combination of the two ensures the rigidity and airtightness of the overall structure, while facilitating the precise installation of subsequent functional modules.

[0029] The lower inner liner 103, installed inside the enclosure 102, serves as the surgical chamber. A sealed space is formed between the lower inner liner 103 and the enclosure 102, within which surgical procedures are performed. Its smooth inner wall structure and rational spatial layout facilitate the uniform distribution of laminar airflow and routine cleaning and disinfection, solving the problem of maintaining cleanliness in the core surgical area.

[0030] The support 104 located at the bottom of the inner wall of the lower inner liner 103 and the collection 105 located at the bottom of the support 104 are used to collect waste fluids generated during the operation. The support 104 supports the pet and surgical instruments, ensuring operational stability, while the collection 105 directly collects blood, irrigation fluid, and other waste fluids flowing from the support 104, preventing waste fluids from accumulating inside the chamber or overflowing. This solves the problem of waste fluids polluting the chamber and the surrounding environment during the operation, significantly improving the level of surgical hygiene.

[0031] An air return duct 106 is provided on the outer side of the collection component 105, and an LED light 107 for lighting is installed on the top of the inner wall of the lower inner liner 103. An anemometer mounting bracket 108 is provided on the outer wall of the lower inner liner 103. The air return duct 106 guides the descending airflow to flow evenly back to the purification circulation system, forming a laminar flow field with the top air supply, ensuring that there are no eddies or dead corners in the surgical area. The LED light 107 provides shadowless and adjustable surgical lighting, and the anemometer mounting bracket 108 facilitates real-time monitoring of wind speed data, ensuring that the laminar flow state is always within the effective range, solving the problems of insufficient lighting and difficulty in monitoring airflow during surgery.

[0032] Casters 101a and outriggers 101b are installed at the four corners of the bottom of the square tube to facilitate the movement and placement of the sealed chamber. The casters 101a allow the chamber to be flexibly moved to different examination rooms or operating rooms according to surgical needs, while the outriggers 101b provide stable support after positioning, preventing the chamber from sliding or shaking during operation, thus solving the problems of inconvenient movement and unstable positioning of large surgical equipment.

[0033] An inner liner fixing plate 101c is fixed to the inner wall of the top of the square tube fitting, and the lower inner liner fitting 103 is connected and fixed to the square tube fitting through the inner liner fixing plate 101c. This connection method achieves a rigid and reliable connection between the lower inner liner fitting 103 and the square tube frame 101, while facilitating disassembly and maintenance, and ensuring the positional stability and long-term sealing effectiveness of the surgical chamber during operation.

[0034] The enclosure 102 includes an outer right side plate 102a and an outer left side plate 102b installed on both sides of the square tube frame 101. A rear sealing plate 102c is provided at the rear between the outer right side plate 102a and the outer left side plate 102b. Counterweight plate baffles 102d are provided on both sides of the outer wall of the rear sealing plate 102c, and a counterweight plate body 102e is installed between the two counterweight plate baffles 102d. The left and right side plates and the rear sealing plate 102c together constitute the external enclosure of the cabin. The counterweight plate body 102e is fixed to the rear sealing plate 102c by the baffles, which increases the self-weight of the rear of the cabin, balances the overturning moment that may be generated when the front door is opened or operated, and solves the safety hazard problem of the cabin tipping over due to the shift of the center of gravity during use.

[0035] The lower inner liner 103 includes a lower inner liner body 103a, an inner liner reinforcing rib 103b installed at the rear of the lower inner liner body 103a, a tabletop support strip 103c provided at the bottom of the inner wall of the lower inner liner body 103a, a tabletop hook 103d fixed to the surface of the tabletop support strip 103c, an inner liner crossbeam 103e provided at the top of the lower inner liner body 103a, and an air outlet plate 103f installed on the outer side of the inner liner crossbeam 103e. The inner liner reinforcing rib 103b improves the structural strength of the lower inner liner body 103a and prevents deformation after long-term use; the tabletop support strip 103c and the tabletop hook 103d are used to securely fix the operating table 104a and facilitate disassembly and cleaning; the inner liner crossbeam 103e cooperates with the air outlet plate 103f to evenly send the purified air downwards, forming a stable vertical laminar flow, solving the problems of uneven airflow distribution and insufficient structural strength within the cavity.

[0036] LED lamp 107 is installed at the bottom of air outlet plate 103f. This layout places the lighting source below the air supply surface, which avoids airflow disturbance and ensures that the surgical area receives direct, uniform, and unobstructed lighting. At the same time, the low heat radiation characteristics of LED lamp 107 will not affect the laminar flow temperature field, thus solving the problem of mutual interference between lighting and clean airflow.

[0037] The support component 104 includes an operating table 104a mounted on a tabletop support strip 103c. The bottom of the operating table 104a is provided with a tabletop reinforcing rib 104b, and a folding handle 104c is installed along the outer edge of the surface of the operating table 104a. A hand rest 104d is installed at the front of the operating table 104a. The operating table 104a provides a flat and sturdy surgical area, the tabletop reinforcing rib 104b enhances its load-bearing capacity, the folding handle 104c facilitates lifting the tabletop for cleaning or replacement, and the hand rest 104d provides comfortable wrist support for the surgeon, reducing fatigue during prolonged surgery and preventing direct hand contact with contaminated areas. This solves the problems of insufficient load-bearing capacity, inconvenient cleaning, and surgeon fatigue associated with the operating table 104a.

[0038] The collection unit 105 includes a collection tank 105a located at the bottom of the operating table 104a. A sanitary ball valve 105b is installed at the bottom of the collection tank 105a, and a waste drain valve sanitary connector 105c is connected to the bottom of the sanitary ball valve 105b. The collection tank 105a collects waste fluid flowing down from the operating table 104a. The sanitary ball valve 105b facilitates drainage during or after the operation. The waste drain valve sanitary connector 105c can be connected to an external waste fluid collection container to achieve closed drainage, preventing waste fluid splashing or odor diffusion, thus solving the problem of safe discharge of surgical waste fluid and prevention of secondary pollution.

[0039] The recovery tank is connected to the front of the collection tank 105a. The recovery tank further expands the waste liquid collection range, especially for liquid dripping from the front, and plays a guiding and temporary storage role. Together with the collection tank 105a, it forms a two-stage collection system, effectively preventing waste liquid from overflowing onto the ground outside the chamber and solving the environmental pollution problem caused by incomplete collection of surgical waste liquid.

[0040] During use, clean air is delivered vertically and evenly downwards from the air outlet plate 103f on the outside of the top inner liner beam 103e, forming a unidirectional laminar airflow field in the lower inner liner 103, continuously flushing the surgical operation area. During the operation, the pet is placed on the operating table 104a, which serves as a support 104. The waste liquid generated flows into the collection tank 105a at the bottom of the operating table 104a and the recovery tank at the front under the action of gravity, and is discharged through the sanitary ball valve 105b and the sanitary connector 105c of the drain valve to prevent the accumulation or diffusion of waste liquid. At the same time, the return air duct 106 guides the descending airflow to the return air port of the purification system, forming a complete air circulation loop. The LED light 107 provides shadowless lighting, and the sensor on the wind speed sensor mounting bracket 108 monitors the wind speed in real time to ensure the stability of the laminar flow. The entire chamber maintains a positive or uniform pressure environment inside through the sealing structure of the square tube frame 101 and the enclosure 102, thereby continuously achieving clean, uniform pressure, and vortex-free surgical conditions within the sealed chamber.

[0041] In summary, the unidirectional laminar flow field formed by the vertical air supply through the top air outlet plate 103f and the return air guided by the return air duct 106 ensures uniform airflow within the surgical chamber, free of eddies and dead zones. This significantly reduces the concentration of microorganisms and particulate pollutants in the air, effectively preventing the risk of wound infection during pet surgery. Secondly, the closed waste fluid collection system, consisting of the operating table 104a, the collection tank 105a, the recovery tank, and the sanitary ball valve 105b, can promptly and safely discharge waste fluids such as blood and irrigation fluid generated during surgery, preventing waste fluid accumulation inside the chamber or overflow into the external environment, significantly improving surgical hygiene and the cleanliness of the operating environment. Thirdly, the LED light 107 installed at the bottom of the air outlet plate 103f ensures sufficient, uniform, and unobstructed lighting in the surgical area while avoiding interference with the laminar airflow. Simultaneously, the counterweight plate 102e is fixed to the rear sealing plate 102c by a baffle strip, balancing the overturning moment that may occur during operation at the front of the chamber, thus improving the overall safety of the machine. Finally, the combination of casters 101a and outriggers 101b allows the cabin to move flexibly between different operating rooms and to be placed stably after positioning. The structural design of the inner liner fixing plate 101c, inner liner reinforcing rib 103b, and folding handle 104c facilitates the disassembly, cleaning and maintenance of the internal components. Overall, it achieves a comprehensive effect of high cleanliness, safe operation and convenient maintenance, and is particularly suitable for pet surgical scenarios with strict infection control requirements.

[0042] Example 2, refer to Figures 1-7 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a ventilation mechanism 200 for the laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom. As the core power and control unit for air purification within the chamber, the ventilation mechanism 200, through close cooperation with the lower inner liner 103 and the enclosure 102, solves the coordination problem between the power source of airflow circulation, fresh air replenishment, and polluted air exhaust in the previous embodiment, thus achieving continuous purification and pressure stability of the air inside the chamber.

[0043] Specifically, the ventilation mechanism 200 includes an upper inner liner 201 installed on top of the lower inner liner 103. A front cover 202 is installed at the front of the upper inner liner 201. An air inlet 203 is installed on one side of the interior of the upper inner liner 201, and an exhaust 204 is installed on the other side of the interior of the upper inner liner 201. The upper inner liner 201 provides independent installation space and a sealed isolation chamber for the air inlet and exhaust components. The front cover 202 facilitates daily maintenance and filter replacement. The air inlet 203 and the exhaust 204 are located on opposite sides to avoid short circuits in the air path. Together, they solve the problems of chaotic airflow organization and inconvenient maintenance in the ventilation system, ensuring independent and efficient operation of the supply and exhaust air.

[0044] Furthermore, the upper inner liner 201 includes an upper inner liner body 201a, a filter front cover 201b installed at the front of the upper inner liner body 201a, a front top cover 201c installed at the front of the filter front cover 201b, an inner inclined panel 201d installed at the bottom of the front top cover 201c, a middle panel 201e installed at the outer end of the inner inclined panel 201d, and an air inlet 201f opened at the top of the upper inner liner body 201a. The filter front cover 201b and the front top cover 201c form an openable maintenance port, facilitating the replacement of the internal filter without affecting other structures; the inner inclined panel 201d and the middle panel 201e guide the airflow smoothly to the air outlet plate 103f, reducing local turbulence and noise; the top air inlet 201f introduces outdoor or pre-treated fresh air, solving the problem of poor air supply and airflow guidance in a sealed cabin environment, improving ventilation efficiency and operational stability.

[0045] The front cover 202 includes a right glass cover 202a and a left glass cover 202b respectively installed on the bottom sides of the front top cover 201c. Glass clips 202c are fixed on both sides of the inner wall of the front top cover 201c, and the two glass clips 202c together hold a glass panel 202d. A glass handle 202e is installed on the surface of the glass panel 202d. Glass baffles 202f are provided on both sides of the glass panel 202d and are fixed to the inside of the glass cover. The two glass cover plates and the middle glass panel 202d form a transparent observation window, which allows the operator to observe the pet's condition and the operation of the equipment inside the chamber without opening the chamber door. The glass clips 202c and the glass baffles 202f together firmly and detachably fix the glass panel 202d. The glass handle 202e facilitates opening and closing operations, solving the problems of difficult observation in a closed chamber and unstable fixation of transparent components, while taking into account both sealing and visibility.

[0046] The air inlet component 203 includes an air inlet filter 203a installed inside the lower part of the upper inner liner body 201a. A high-efficiency air inlet hood 203b is installed on the top of the air inlet filter 203a. A diffuser 203c is installed inside the high-efficiency air inlet hood 203b. An induced draft fan 203d is connected to the top of the high-efficiency air inlet hood 203b. The induced draft fan 203d draws in air from the top air inlet 201f. Large particles are first filtered out by the air inlet filter 203a, and then the air is evenly dispersed by the diffuser 203c inside the high-efficiency air inlet hood 203b before being sent downstream. The diffuser 203c disperses the concentrated airflow into a low-speed, uniform airflow, solving the problem of excessively high local wind speeds or airflow deviation that can easily occur with concentrated air supply, thus laying the foundation for the formation of stable laminar flow.

[0047] The inner wall of the upper inner liner body 201a is equipped with filter clamping bolts 203e for fixing the air inlet filter 203a. These clamping bolts can tightly press the air inlet filter 203a onto the mounting base, preventing the filter from loosening or bypassing due to vibration or airflow impact. This ensures that all air entering the chamber is effectively filtered, solving the problem of decreased cleanliness that may be caused by poor filter sealing and guaranteeing a continuous sterile environment in the operating room.

[0048] The exhaust unit 204 includes an exhaust frame 204a, an exhaust filter 204b mounted on top of the exhaust frame 204a, and an exhaust port flange 204c located on top of the exhaust filter 204b. The exhaust frame 204a reliably fixes the exhaust filter 204b within the upper inner liner body 201a. The exhaust filter 204b filters the exhaust air before connecting it to the external exhaust duct via the exhaust port flange 204c. This prevents pathogens or odors that may be generated during surgery from being directly discharged into the indoor environment, while maintaining an appropriate negative pressure or pressure gradient within the chamber. This solves the biosafety protection problem during the exhaust process, protecting the operators and the surrounding environment.

[0049] In use, after starting the exhaust fan 203d, outdoor or pre-treated fresh air is drawn in through the air inlet 201f at the top of the upper inner liner body 201a. It first enters the air inlet 203, where it undergoes primary filtration through the air inlet filter 203a. Then, the concentrated airflow is evenly dispersed by the diffuser 203c inside the high-efficiency air inlet hood 203b. Subsequently, it is smoothly guided downwards through the inner inclined panel 201d and the middle panel 201e to the air outlet plate 103f at the top of the lower inner liner 103, forming a vertical unidirectional laminar flow into the surgical chamber. Simultaneously, the exhaust fan 204 operates synchronously, and the return air at the bottom of the chamber... The trough 106 guides the descending airflow to the exhaust frame 204a, and after being filtered by the exhaust filter 204b, it is discharged outside the cabin through the exhaust port flange 204c or connected to the external exhaust system, thereby maintaining a stable positive or negative pressure environment inside the cabin through the dynamic balance of air intake and exhaust. The glass panel 202d in the front cover 202 allows the operator to observe the situation inside the cabin at any time. The filter clamping bolt 203e ensures that the air intake filter 203a is sealed and reliable for a long time. The entire ventilation mechanism 200 works in coordination with the cabin to continuously achieve the replenishment of clean fresh air, the discharge of polluted air, and the stable maintenance of laminar airflow.

[0050] In summary, through the synergistic action of the exhaust fan 203d, air inlet filter 203a, high-efficiency air inlet hood 203b, and diffuser 203c, fresh air from outside is filtered, uniformly distributed, and smoothly delivered into the operating room. This effectively avoids the problems of excessively high local wind speeds or airflow deviations caused by centralized air supply, ensuring the uniformity and stability of laminar airflow and significantly improving the air cleanliness of the surgical area. Secondly, the exhaust frame 204a and exhaust filter 204b in the exhaust unit 204 filter the exhaust air before it is discharged externally through the exhaust flange 204c. This maintains an appropriate pressure gradient within the chamber and prevents pathogens, odors, or aerosols that may be generated during surgery from directly spreading into the indoor environment, effectively ensuring the biosafety of the operators and the surrounding space. Furthermore, the filter front cover plate 201b, front top cover plate 201c, and filter clamping bolts 203e installed in the upper inner liner 201 ensure that the air inlet filter 203a can be firmly clamped and sealed, while facilitating daily inspection and quick replacement. This solves the problems of filter bypass leakage and maintenance difficulties, and reduces the risk of cleanliness degradation during long-term operation. Finally, the front cover 202 adopts a transparent observation window structure composed of a glass panel 202d, glass clip 202c, glass baffle 202f, and glass handle 202e. While ensuring the airtightness of the chamber, it provides operators with a clear and convenient observation view, allowing real-time monitoring of the pet's status without opening the chamber door, avoiding disturbance to the laminar flow environment caused by frequent door openings. In summary, this ventilation mechanism 200 achieves efficient and clean air exchange while taking into account operational stability, biosafety protection, ease of maintenance, and operational visibility, providing a long-lasting, reliable, and safe air purification guarantee for pet surgery.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A laminar flow pressure-equalized clean room for pet surgery, characterized in that: include, The cabin structure (100) includes a square tube frame (101) and a enclosure member (102) located on top of the square tube frame (101). The lower inner liner (103) installed inside the enclosure (102) serves as an operating chamber; The support member (104) located at the bottom of the inner wall of the lower inner liner (103) and the collection member (105) located at the bottom of the support member (104) are used to collect waste liquid generated during the operation. The outer side of the collecting component (105) is provided with a return air duct (106), the top of the inner wall of the lower inner liner (103) is equipped with an LED light (107) for lighting, and the outer wall of the lower inner liner (103) is provided with a wind speed sensor mounting bracket (108); and, The ventilation mechanism (200) includes an upper inner liner (201) installed on the top of the lower inner liner (103), a front cover (202) installed on the front of the upper inner liner (201), an air inlet (203) installed on one side of the interior of the upper inner liner (201), and an exhaust (204) installed on the other side of the interior of the upper inner liner (201).

2. The laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom as described in claim 1, characterized in that: The square tube frame (101) is equipped with casters (101a) and support legs (101b) at the four corners of its bottom to facilitate the movement and placement of the sealed chamber; The inner wall of the top of the square tube is fixed with an inner liner fixing piece (101c), and the lower inner liner (103) is connected and fixed to the square tube through the inner liner fixing piece (101c).

3. The laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom as described in claim 2, characterized in that: The enclosure component (102) includes an outer right side plate (102a) and an outer left side plate (102b) installed on both sides of the square tube frame (101). A rear sealing plate (102c) is provided at the rear between the outer right side plate (102a) and the outer left side plate (102b). Counterweight plate baffles (102d) are provided on both sides of the outer wall of the rear sealing plate (102c). A counterweight plate body (102e) is installed between the two counterweight plate baffles (102d).

4. The laminar flow pressure equalization and sealed chamber of the pet surgical cleanroom as described in claim 3, characterized in that: The lower inner liner component (103) includes a lower inner liner body (103a), an inner liner reinforcing rib (103b) is installed at the rear of the lower inner liner body (103a), a tabletop support strip (103c) is provided at the bottom of the inner wall of the lower inner liner body (103a), a tabletop hook (103d) is fixed on the surface of the tabletop support strip (103c), an inner liner crossbeam (103e) is provided at the top of the lower inner liner body (103a), and an air outlet plate (103f) is installed on the outer side of the inner liner crossbeam (103e). The LED light (107) is installed at the bottom of the air outlet plate (103f).

5. The laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom as described in claim 4, characterized in that: The support (104) includes an operating table (104a) mounted on the table support bar (103c), a table reinforcing rib (104b) at the bottom of the operating table (104a), a folding handle (104c) mounted on the outer edge of the surface of the operating table (104a), and a hand rest (104d) mounted on the front of the operating table (104a).

6. The laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom as described in claim 5, characterized in that: The collection component (105) includes a liquid collection tank (105a) disposed at the bottom of the operating table (104a), a sanitary ball valve (105b) is installed at the bottom of the liquid collection tank (105a), and a sewage valve sanitary connector (105c) is connected to the bottom of the sanitary ball valve (105b). The return air duct (106) is connected to the front of the liquid collection duct (105a).

7. The laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom as described in claim 6, characterized in that: The upper inner liner (201) includes an upper inner liner body (201a), a filter front cover plate (201b) is installed at the front of the upper inner liner body (201a), a front upper cover plate (201c) is installed at the front of the filter front cover plate (201b), an inner inclined panel (201d) is installed at the bottom of the front upper cover plate (201c), a middle panel (201e) is provided on the outer side of the inner inclined panel (201d), and an air inlet (201f) is also provided at the top of the upper inner liner body (201a).

8. The laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom as described in claim 7, characterized in that: The front cover (202) includes a right glass cover (202a) and a left glass cover (202b) respectively installed on the bottom sides of the front top cover (201c). Glass clips (202c) are fixed on both sides of the inner wall of the front top cover (201c). The two glass clips (202c) together hold a glass panel (202d). A glass handle (202e) is installed on the surface of the glass panel (202d). Glass baffles (202f) are provided on both sides of the glass panel (202d). The glass baffles (202f) are fixed to the inside of the glass cover.

9. The laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom as described in claim 8, characterized in that: The air inlet component (203) includes an air inlet filter (203a) installed inside the lower part of the upper inner liner body (201a), a high-efficiency air inlet hood (203b) is installed on the top of the air inlet filter (203a), a diffuser (203c) is installed inside the high-efficiency air inlet hood (203b), and an exhaust fan (203d) is connected to the top of the high-efficiency air inlet hood (203b). The inner wall of the upper inner liner body (201a) is equipped with filter clamping bolts (203e) for fixing the air inlet filter (203a).

10. The laminar flow pressure equalization and sealing chamber of the pet surgical cleanroom as described in claim 9, characterized in that: The exhaust component (204) includes an exhaust frame (204a), an exhaust filter (204b) is installed on the top of the exhaust frame (204a), and an exhaust port flange (204c) is provided on the top of the exhaust filter (204b).

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