Biomedical engineering industry medical flushing equipment

Abstract

The present application belongs to the medical instrument technical field of biomedical engineering industry, especially a biomedical engineering industry medical flushing equipment, aiming at the technical defects of the existing traditional medical flushing equipment, such as insufficient flushing water pressure, no negative pressure waste liquid recovery function, easy to cause secondary pollution, complex structure, high failure rate, nozzle inconvenient maintenance, the present application proposes the following scheme, which comprises a flushing gun body, the bottom side of the flushing gun body is inclinedly provided with a handle, the handle is internally provided with a control chip and a power supply, a control button is connected to the control chip and the power supply, and a charging port is arranged at the bottom of the handle, further comprising: a waste liquid collecting mechanism arranged in the interior of the flushing gun body and located at the front end of the flushing gun body; and a fluid swivel mechanism.The present application adopts a water flow self-driving linkage structure, does not need additional driving elements, can synchronously realize high-pressure pulse water spraying flushing and negative pressure waste liquid adsorption recovery, has a simple structure, strong portability and good cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of medical device technology in the biomedical engineering industry, and in particular to a medical rinsing device for the biomedical engineering industry. Background Technology

[0002] In biomedical diagnosis and treatment, medical instrument cleaning, and wound cleaning, specialized medical irrigation equipment is required for sterile rinsing and cleaning of affected areas and instruments. Current technical features: Manual balloon flushing device: It generates flushing fluid flow by manually squeezing the balloon. It has a simple structure and low cost, but the flushing pressure is unstable, the operator is prone to fatigue, and it cannot simultaneously recover waste fluid.

[0003] Electric pulse irrigation device: The high-pressure pump driven by the motor generates pulse irrigation fluid, which has a good irrigation effect, but requires an external power supply, the equipment is large and expensive, and there are electrical safety hazards in the humid medical environment.

[0004] Independent negative pressure aspirator: It is equipped with a separate negative pressure source and operates separately from the flushing equipment. Flushing and aspiration cannot be synchronized, making operation cumbersome and waste liquid prone to overflow.

[0005] Currently, most traditional medical rinsing equipment uses constant pressure water supply rinsing, which has stable water pressure and weak impact force, resulting in poor cleaning effect on stubborn attachments and stains in crevices. At the same time, traditional equipment only has a single water spraying function, and the waste liquid generated during rinsing cannot be recycled in time, which can easily cause waste liquid to overflow, secondary contamination of wounds, and water accumulation on the operating table, which does not meet the requirements for medical sterile and clean operation. Summary of the Invention

[0006] The purpose of this invention is to address the technical shortcomings of existing traditional medical rinsing equipment, such as insufficient rinsing water pressure, lack of negative pressure waste liquid recovery function, easy secondary pollution, complex structure, high failure rate, and inconvenient nozzle maintenance. The invention proposes a medical rinsing device for biomedical engineering industry, which adopts a water flow self-driven linkage structure, requiring no additional drive components. It can simultaneously realize high-pressure pulse water spray rinsing and negative pressure waste liquid adsorption and recovery. It has a simple structure, strong portability, and good cleaning effect, which can effectively avoid waste liquid overflow pollution and is suitable for biomedical aseptic rinsing operation scenarios.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A medical rinsing device for biomedical engineering industry includes a rinsing gun body, a handle inclinedly disposed on the bottom side of the rinsing gun body, a control chip and a power supply disposed inside the handle, a control button connected to the control chip and the power supply, and a charging port disposed at the bottom of the handle. The device also includes: A waste liquid collection mechanism is located inside the rinsing gun body and at its front end. A fluid circulation mechanism is fixedly installed inside the rinsing gun body, located behind the waste liquid collection mechanism. The fluid circulation mechanism includes a fluid conversion chamber, inside which a piston plate is installed. The piston plate divides the fluid conversion chamber into a pulse generation chamber and a negative pressure generation chamber. The negative pressure generation chamber is connected to the waste liquid collection mechanism. A cleaning pipe is connected to the negative pressure generation chamber, and a nozzle is connected to the front end of the cleaning pipe. The nozzle is located at the center of the outer side of the rinsing gun body. A fluid drive chamber mechanism is located inside the rinsing gun body and at its rear end. A linkage mechanism connects the fluid drive chamber mechanism and the fluid circulation mechanism. A water pump is connected to the fluid drive chamber mechanism, and the water pump is electrically connected to a control button.

[0008] Compared with existing technologies, the advantages of this invention are that this device is a handheld medical sterile rinsing device that integrates a self-driven water flow, piston reciprocating chamber switching, high-pressure pulse water spray, and a surrounding negative pressure waste liquid recovery integrated structure. It does not require an additional motor or cylinder drive, but relies on the power of water flow to achieve mechanical reciprocating motion, alternately generating high-pressure rinsing water flow and negative pressure adsorption force. While completing high-pressure rinsing of medical wounds and instruments, it immediately recovers waste liquid, completely eliminating secondary pollution from waste liquid overflow. The device is compact and portable, with a simple structure and low failure rate, and is suitable for various sterile rinsing operation scenarios in biomedical engineering.

[0009] The waste liquid collection mechanism includes a hollow ring, which is installed at the front end of the flushing gun body. The front end of the hollow ring is connected to multiple negative pressure suction ports. Multiple external holes are opened on the front side of the flushing gun body. The multiple negative pressure suction ports are arranged one-to-one with the multiple external holes. The rear side of the hollow ring is connected to a negative pressure suction tube, which is connected to a negative pressure generating chamber. A first one-way valve is provided on the negative pressure suction tube.

[0010] Compared with the prior art, the advantages of the present invention are that the multiple sets of negative pressure suction ports arranged in a ring at the front end can form a surrounding adsorption area to collect the rinsing waste liquid in all directions, and the first one-way valve ensures that the waste liquid flows into the cavity in one direction, preventing backflow and leakage of waste liquid and ensuring the stability of negative pressure adsorption.

[0011] The bottom of the negative pressure suction tube is connected to a branch suction tube, which penetrates the flushing gun body and extends to the outside. The bottom end of the branch suction tube is provided with a first external thread.

[0012] Compared with the prior art, the advantages of the present invention are that the branch suction tube can be connected to an auxiliary negative pressure suction pipeline to improve the waste liquid recovery capacity, and can be sealed by thread sealing when idle, adapting to different flushing operation conditions and having strong versatility.

[0013] The bottom side of the negative pressure generating chamber is connected to a waste liquid discharge pipe, a second one-way valve is provided on the waste liquid discharge pipe, the bottom end of the waste liquid discharge pipe penetrates the flushing gun body and extends to the outside, and a second external thread is provided at the bottom end of the waste liquid discharge pipe.

[0014] Compared with the prior art, the advantages of the present invention are that it enables centralized and directional discharge of waste liquid, the second one-way valve prevents backflow of external air and waste liquid, maintains a negative pressure environment in the cavity, and avoids secondary pollution in the rinsing area.

[0015] The cleaning pipe is equipped with a one-way water outlet valve, the outer end of the cleaning pipe is equipped with a nozzle connection thread, the inner side of the nozzle is equipped with an internal thread, the internal thread is threadedly connected to the nozzle connection thread, and the front end of the nozzle is equipped with a conical nozzle.

[0016] Compared with the prior art, the advantages of the present invention are that the one-way water outlet valve prevents high-pressure water flow backflow and pressure leakage, ensuring the intensity of pulse water pressure; the nozzle adopts a detachable threaded structure, which is convenient for disassembly, cleaning and descaling, and changing specifications; the conical nozzle gathers the water flow to form a high-pressure pulse water column, which enhances the rinsing and cleaning power.

[0017] The fluid drive chamber mechanism includes a circular cavity box, which is installed inside the flushing gun body. A water flow vane is rotatably installed inside the circular cavity box. A water supply pipe is connected between the outlet of the water pump and the circular cavity box. A solenoid valve is installed on the water supply pipe. A water inlet pipe is connected to the inlet of the water pump. A sealing cover is provided on the rear side of the flushing gun body. The water inlet pipe passes through the sealing cover and extends to the outside.

[0018] Compared with the prior art, the advantages of the present invention are that the water pump draws clean water into the circular cavity box, and the water flow impacts the water flow blades to rotate, providing a pure water power source for the reciprocating linkage structure of the whole machine. No additional electrical drive components are required, resulting in a simplified structure, low energy consumption, and stable operation.

[0019] The bottom side of the circular cavity box is connected to a cleaning water supply pipe, which is connected to the pulse generating cavity. A one-way water inlet valve is provided on the cleaning water supply pipe.

[0020] Compared with the prior art, the advantages of the present invention are that the one-way water inlet valve ensures that clean water is supplied to the pulse generation chamber in one direction, prevents backflow of high-pressure pulse water, stabilizes the water pressure in the chamber, and ensures the pulse boosting flushing effect.

[0021] The linkage mechanism includes a reciprocating screw, which is fixedly connected to the water flow vane. The reciprocating screw is rotatably connected to the circular cavity box through a sealed bearing. Two reciprocating screw grooves are opened on the outer side of the reciprocating screw. A linkage slide rod is fixedly installed on the piston plate. A reciprocating frame is installed near the reciprocating screw on the linkage slide rod. The reciprocating frame has a U-shaped structure. Slide rods are fixedly installed on the inner walls of both sides of the reciprocating frame. The two slide rods are slidably connected to the inner walls of the two reciprocating screw grooves.

[0022] Two slide rails are fixedly installed on the inner wall of the flushing gun body. Guide rods are fixedly installed inside each of the two slide rails. Guide blocks are slidably installed on the outer side of each of the two guide rods. The two guide blocks are slidably connected to the inner walls of the two slide rails. The two guide blocks are fixedly installed on both sides of the reciprocating frame.

[0023] Compared with the prior art, the advantages of this invention are that it accurately converts the rotational motion of the water flow blade into the linear reciprocating motion of the piston plate, and ensures that the piston slides smoothly without jamming by limiting and guiding it through the slide rail and guide rod, so as to realize the alternating change of the volume of the pulse generation chamber and the negative pressure generation chamber, and simultaneously complete the pressurized water spraying and negative pressure waste suction actions.

[0024] Multiple mounting rods are installed between the outer side of the fluid conversion chamber and the inner wall of the flushing gun body. A mounting plate is installed on the rear side of the water pump, and the water pump is mounted on the inner wall of the flushing gun body through the mounting plate.

[0025] The beneficial effects of the medical flushing device for biomedical engineering industry described in this invention are as follows: 1. Innovative Hydraulic Self-Driven Integrated Structure, Adapting to the Lightweight Equipment Needs of the Biomedical Engineering Industry: This invention abandons the complex drive structure of traditional medical flushing equipment that relies on multiple independent power components such as motors and cylinders. It adopts a water flow self-driven linkage transmission system, relying on the impact of water flow from the water pump on the rotation of the water impeller to drive the entire reciprocating transmission mechanism, without the need for an additional power source. The overall equipment structure is streamlined and compact, small in size, handheld and portable, with low energy consumption and low failure rate. It meets the industrial design requirements of the biomedical engineering industry for lightweight, integrated, and highly stable portable medical diagnostic and treatment equipment, solving the industry pain points of traditional equipment being bulky, cumbersome in structure, and unsuitable for mobile clinical flushing operations.

[0026] 2. The dual-chamber alternating coupling working principle achieves the pulsed high-pressure flushing effect required by the biomedical engineering industry: The fluid conversion chamber is designed with a split structure, dividing the chamber into a pulse generation chamber and a negative pressure generation chamber through the reciprocating sliding of a piston plate. Utilizing the coupling principle of alternating dual-chamber volume changes, a steady water flow is transformed into a high-frequency pulsed high-pressure water jet. Compared to traditional constant-pressure flushing equipment, this equipment has a stronger flushing impact, effectively removing stubborn stains and biological attachments from gaps in medical instruments and folds in wounds. It meets the refined and high-cleanliness medical flushing standards of the biomedical engineering industry, significantly improving the quality of medical cleaning and disinfection.

[0027] 3. Synchronous closed-loop flushing and aspiration operation mode, matching the aseptic and contamination prevention standards of the biomedical engineering industry: Addressing the core aseptic requirements of biomedical diagnostic and treatment operations, which strictly prohibit waste liquid spillage and secondary contamination, a unique synchronous linkage structure of high-pressure flushing and negative pressure waste liquid recovery is employed. While the equipment pulses water for cleaning, the front-end annular negative pressure adsorption mechanism simultaneously forms a surrounding negative pressure adsorption area, collecting waste liquid and sewage generated during flushing in real time. Combined with multiple sets of one-way valves, a closed-loop one-way fluid path is constructed, completely eliminating waste liquid backflow, spillage, and backflow problems, effectively preventing secondary contamination of wounds and medical instruments, and strictly complying with the industry standards for aseptic diagnosis and treatment and clean operation in the biomedical engineering industry.

[0028] 4. Modular and maintainable adaptable structure to meet the diverse medical needs of the biomedical engineering industry: The nozzle at the front end of the equipment adopts a threaded and detachable structure, which can be quickly disassembled for cleaning and descaling, and replaced with appropriate specifications, avoiding the growth of bacteria and pipe blockage during long-term use, and ensuring the hygiene and safety of medical rinsing; at the same time, the equipment integrates multiple sets of external threaded pipe interfaces, which can be flexibly connected to external waste liquid collection and auxiliary waste suction pipes, and can be adapted to the diverse operation scenarios of the biomedical engineering industry such as wound rinsing, medical instrument cleaning, and laboratory clean rinsing. The equipment's versatility and maintainability far exceed those of traditional integrated fixed rinsing equipment.

[0029] 5. A comprehensive one-way protection system enhances the stability of medical operations in the biomedical engineering industry: Addressing the shortcomings of medical flushing equipment's water and wastewater pipelines, which are prone to pressure leakage, backflow, and contamination, a one-way valve assembly is installed throughout the inlet, outlet, wastewater adsorption, and wastewater discharge pipelines, forming a comprehensive one-way fluid control system. This ensures stable pulsed high-pressure water pressure and continuous reliable negative pressure adsorption, while preventing external air and wastewater from contaminating the internal pipelines. Long-term operation maintains high cleanliness and strong stability, meeting the stringent requirements of long-term sterility and stable operation in the biomedical engineering industry. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a medical flushing device for biomedical engineering industry proposed in this invention; Figure 2This is a bottom view structural diagram of a medical flushing device for biomedical engineering industry proposed in this invention; Figure 3 This is a schematic diagram of the internal structure of a medical flushing device for biomedical engineering industry proposed in this invention; Figure 4 This is a schematic diagram of the structure of the flushing gun body, handle, control button, outer hole, and center hole proposed in this invention. Figure 5 This is a schematic diagram of the structure of a medical rinsing device for biomedical engineering industry after disassembly of the rinsing gun body, as proposed in this invention. Figure 6 This invention proposes Figure 5 A schematic diagram of the side view structure; Figure 7 This invention proposes Figure 5 A schematic diagram of the structure viewed from below; Figure 8 This is a schematic diagram of the linkage mechanism, the circular cavity box, the water pump, and the mounting plate proposed in this invention. Figure 9 This is a side view of the linkage mechanism, circular cavity box, water pump, and mounting plate proposed in this invention. Figure 10 This is a schematic diagram of the structure of the circular cavity box, reciprocating screw, water pump, and mounting plate proposed in this invention. Figure 11 This is a bottom view of the waste liquid collection mechanism, cleaning pipe, fluid circulation mechanism, negative pressure suction pipe, branch suction pipe, and waste liquid discharge pipe proposed in this invention. Figure 12 This is a schematic diagram of the planar structure of the waste liquid collection mechanism, cleaning pipe, fluid circulation mechanism, negative pressure suction pipe, branch suction pipe, and waste liquid discharge pipe proposed in this invention. Figure 13 This is a schematic internal view of the waste liquid collection mechanism, cleaning pipe, fluid circulation mechanism, negative pressure suction pipe, branch suction pipe, waste liquid discharge pipe, pulse generation chamber, and negative pressure generation chamber proposed in this invention. Figure 14 This is a schematic diagram of the reciprocating screw, reciprocating screw groove, circular cavity box, sealed bearing, water flow vane, and water pump proposed in this invention. Figure 15 This is a schematic diagram of the reciprocating screw, reciprocating screw groove, and water flow blade proposed in this invention. Figure 16 This is a schematic diagram of the nozzle structure proposed in this invention; Figure 17 This is a side view of the nozzle structure proposed in this invention.

[0031] In the diagram: 1. Flushing gun body; 11. Handle; 12. Control button; 13. Sealing cap; 14. Charging port; 15. External distribution hole; 16. Center hole; 2. Waste liquid collection mechanism; 21. Hollow ring; 22. Negative pressure suction port; 23. Negative pressure suction tube; 231. First one-way valve; 24. Branch suction tube; 241. First external thread; 25. Waste liquid discharge tube; 251. Second external thread; 252. Second one-way valve; 31. Cleaning tube; 311. Nozzle connection thread; 312. One-way water outlet valve; 32. Nozzle; 321. Internal thread; 322. Conical nozzle; 4. 41. Fluid rotating mechanism; 42. Fluid conversion chamber; 43. Mounting rod; 44. Piston plate; 45. Pulse generating chamber; 46. Negative pressure generating chamber; 5. Linkage mechanism; 51. Slide rail; 52. Reciprocating frame; 53. Linkage slide rod; 54. Guide rod; 55. Slide rod; 56. Guide block; 57. Reciprocating screw; 571. Reciprocating screw groove; 6. Fluid drive chamber; 61. Circular cavity box; 62. Cleaning water supply pipe; 621. One-way water inlet valve; 63. Sealed bearing; 64. Water flow vane; 7. Water pump; 71. Mounting plate; 72. Water inlet pipe; 73. Water supply pipe; 731. Solenoid valve. Detailed Implementation

[0032] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this embodiment, and not all embodiments.

[0033] Example 1 Reference Figures 1-17 A medical flushing device for biomedical engineering industry includes a flushing gun body 1. A handle 11 is fixedly installed at an angle on the bottom side of the flushing gun body 1. A control chip and a power supply are integrated inside the handle 11. The control chip and power supply are electrically connected to a control button 12. A charging port 14 is provided at the bottom of the handle 11 for charging the device. The device also includes: a waste liquid collection mechanism 2, a fluid rotating mechanism 4, a linkage mechanism 5, a fluid driving chamber mechanism 6, and a water pump 7. The waste liquid collection mechanism 2 is assembled at the front end inside the flushing gun body 1. The fluid rotating mechanism 4 is fixedly assembled inside the flushing gun body 1 and located behind the waste liquid collection mechanism 2. The fluid driving chamber mechanism 6 is assembled at the rear inside the flushing gun body 1. The fluid driving chamber mechanism 6 and the fluid rotating mechanism 4 are connected by the linkage mechanism 5. The water pump 7 is connected to the fluid driving chamber mechanism 6 and electrically connected to the control button 12 to realize the electric start and stop of the whole machine.

[0034] refer to Figure 16 , Figure 17The fluid rotating mechanism 4 includes a fluid conversion chamber 41, inside which a piston plate 43 is slidably installed in a sealed manner. The piston plate 43 divides the fluid conversion chamber 41 into a negative pressure generating chamber 45 on the front side and a pulse generating chamber 44 on the rear side. The negative pressure generating chamber 45 is connected to the waste liquid collection mechanism 2, and the negative pressure generating chamber 45 is connected to a cleaning pipe 31. The front end of the cleaning pipe 31 passes through the central hole 16 of the flushing gun body 1 and is connected to a nozzle 32. The nozzle 32 is arranged at the center of the outer side of the flushing gun body 1.

[0035] This invention integrates a water flow drive, piston reciprocating chamber switching, pulsed high-pressure water spray, and synchronous negative pressure waste liquid recovery into a single structure. It eliminates the need for an additional motor drive and utilizes water flow power to achieve high-pressure pulse flushing and synchronous waste liquid absorption and recovery. This solves the problems of traditional medical flushing equipment, such as unstable water pressure, low flushing cleanliness, waste liquid overflow and pollution, complex equipment structure, and large size. It is suitable for the sterile, clean, and residue-free flushing operation requirements of biomedical diagnosis and treatment scenarios.

[0036] refer to Figures 5-8 , Figures 11-13 In this embodiment, the waste liquid collection mechanism 2 includes a hollow ring 21, which is fixedly installed inside the front end of the flushing gun body 1. The front end of the hollow ring 21 is uniformly connected to a plurality of negative pressure suction ports 22. The front side of the flushing gun body 1 is provided with a plurality of external distribution holes 15, and the plurality of negative pressure suction ports 22 are aligned with the plurality of external distribution holes 15 one by one. The rear side of the hollow ring 21 is connected to a negative pressure suction pipe 23, which is connected to a negative pressure generating chamber 45. A first one-way valve 231 is installed on the negative pressure suction pipe 23.

[0037] Specifically, the hollow ring 21 integrates multiple sets of negative pressure suction ports 22, which can perform circumferential negative pressure suction of the waste liquid and accumulated water generated during the rinsing operation; the first one-way valve 231 ensures that the fluid can only flow into the negative pressure generating chamber 45 from the front suction area, preventing the waste liquid in the chamber from flowing back and leaking, and ensuring the stability of negative pressure adsorption.

[0038] The bottom of the negative pressure suction tube 23 is connected to a branch suction tube 24. The branch suction tube 24 extends through the flushing gun body 1 to the outside of the equipment. The bottom end of the branch suction tube 24 is provided with a first external thread 241, which can be connected to a negative pressure pipeline or sealed.

[0039] Specifically, the branch suction pipe 24 serves as an auxiliary waste liquid adsorption channel. It can be connected to external waste liquid suction equipment according to the working conditions to enhance the waste liquid recovery capacity. When idle, it can be sealed by threaded sealing to adapt to different flushing operation scenarios.

[0040] refer to Figure 13In this embodiment, the bottom side of the negative pressure generating chamber 45 is connected to a waste liquid discharge pipe 25. A second one-way valve 252 is installed on the waste liquid discharge pipe 25. The bottom end of the waste liquid discharge pipe 25 extends through the flushing gun body 1 to the outside, and a second external thread 251 is provided at the bottom end, which can be connected to an external waste liquid collection pipe.

[0041] Specifically, the waste liquid accumulated in the negative pressure generating chamber 45 can be discharged in a directional manner through the waste liquid discharge pipe 25. The second one-way valve 252 ensures that the waste liquid is discharged in one direction and that external air cannot flow back in, thereby maintaining the negative pressure environment of the chamber and avoiding secondary pollution.

[0042] refer to Figures 11-13 In this embodiment, a one-way water outlet valve 312 is installed on the cleaning pipe 31, and a nozzle connection thread 311 is provided at the front end of the cleaning pipe 31; an internal thread 321 is provided on the inner side of the nozzle 32, and the internal thread 321 is detachably connected to the nozzle connection thread 311; and a conical nozzle 322 is provided at the front end of the nozzle 32.

[0043] Specifically, the one-way water outlet valve 312 ensures that the high-pressure cleaning water is sprayed in one direction without backflow or pressure loss; the nozzle 32 adopts a threaded detachable structure, which is convenient for disassembly, cleaning, and replacement of nozzles of different specifications; the conical nozzle 322 can concentrate the water flow to form a high-pressure pulse water column, thereby improving the rinsing and cleaning power.

[0044] refer to Figure 14 In this embodiment, the fluid drive chamber mechanism 6 includes a circular cavity box 61, which is fixedly installed inside the rear side of the flushing gun body 1. A water flow vane 64 is rotatably installed inside the circular cavity box 61. The outlet end of the water pump 7 is connected to a water supply pipe 73, and a solenoid valve 731 is installed on the water supply pipe 73. The end of the water supply pipe 73 is connected to the inside of the circular cavity box 61. The inlet end of the water pump 7 is connected to an inlet pipe 72. A sealing cover 13 is installed on the rear side of the flushing gun body 1. The inlet pipe 72 extends through the sealing cover 13 to the outside of the equipment for connecting to an external clean water source.

[0045] Specifically, the water pump 7 draws external clean water and sends it into the circular cavity box 61. The high-pressure water flow impacts the water flow vane 64 to rotate, providing a power source for the reciprocating linkage structure of the whole machine. The solenoid valve 731 can control the opening and closing of the water circuit to achieve precise start and stop control. The sealing cover 13 ensures the internal sealing of the equipment to prevent water and dust from entering.

[0046] refer to Figure 14 In this embodiment, a cleaning water supply pipe 62 is connected to the bottom side of the circular cavity box 61. The cleaning water supply pipe 62 is connected to the pulse generating cavity 44. A one-way water inlet valve 621 is installed on the cleaning water supply pipe 62.

[0047] Specifically, the one-way inlet valve 621 ensures that clean water can only flow into the pulse generating chamber 44 from the circular cavity box 61 in one direction, preventing backflow of pulse high-pressure water, maintaining the stability of water pressure in the chamber, and ensuring the pulse pressurization effect.

[0048] refer to Figure 15 In this embodiment, the linkage mechanism 5 includes a reciprocating screw 57, which is fixedly connected to the center of the water flow vane 64. The reciprocating screw 57 is sealed and rotated with the circular cavity box 61 through a sealed bearing 63. Two symmetrical reciprocating screw grooves 571 are provided on the outer side of the reciprocating screw 57. A linkage slide rod 53 is fixedly installed on the rear side of the piston plate 43. A U-shaped reciprocating frame 52 is fixedly installed on the rear side of the linkage slide rod 53. Slide rods 55 are fixedly installed on the inner walls of both sides of the reciprocating frame 52. The two slide rods 55 are respectively slidably engaged with the inner walls of the two reciprocating screw grooves 571.

[0049] Reference Figure 9 In this embodiment, two sets of symmetrical slide rails 51 are fixedly installed on the inner wall of the flushing gun body 1. Guide rods 54 are fixedly installed inside the two slide rails 51. Guide blocks 56 are slidably sleeved on the outer side of the guide rods 54. The two guide blocks 56 are fixedly connected to both sides of the reciprocating frame 52 respectively. The guide blocks 56 are slidably engaged with the inner wall of the slide rail 51.

[0050] Specifically, the rotation of the water flow blade 64 drives the reciprocating screw 57 to rotate synchronously. Through the cooperation of the reciprocating screw groove 571 and the slide rod 55, the rotational motion is converted into the linear reciprocating motion of the reciprocating frame 52. With the cooperation of the slide rail 51, guide rod 54 and guide block 56, precise guidance and limiting are achieved without deviation or jamming. Finally, the piston plate 43 is driven to slide stably back and forth in the fluid conversion chamber 41, realizing the alternating change of the chamber volume.

[0051] Multiple mounting rods 42 are fixedly installed between the outer side of the fluid conversion chamber 41 and the inner wall of the flushing gun body 1 to achieve stable assembly of the chamber; an mounting plate 71 is fixedly installed on the rear side of the water pump 7, and the water pump 7 is fixedly assembled to the inner wall of the flushing gun body 1 through the mounting plate 71 to ensure the overall structure of the equipment is stable.

[0052] Working principle: Before using the equipment, connect the rear water inlet pipe 72 to the clean water source through the external hose; connect the bottom end of the waste liquid discharge pipe 25 to the waste liquid collection pipeline, and the branch suction pipe 24 can be sealed or connected to the negative pressure suction pipeline as needed; hold the equipment by the handle 11 and aim the front nozzle 32 at the medical wound or instrument to be rinsed to complete the operation alignment.

[0053] Equipment start-up and water circuit connection: Press the control button 12 on the handle 11 to start the equipment. The water pump 7 and the solenoid valve 731 work synchronously. External clean water is sent into the round cavity box 61 through the water inlet pipe 72, water pump 7, and water supply pipe 73. The high-pressure water flow continuously impacts the water flow blade 64, driving the water flow blade 64 to rotate at high speed.

[0054] Mechanical reciprocating linkage, alternating chamber pressurization and negative pressure: The water flow vane 64 drives the reciprocating screw 57 to rotate synchronously, the reciprocating screw groove 571 squeezes the slide bar 55, driving the U-shaped reciprocating frame 52 to make back-and-forth reciprocating linear motion under the limiting guidance of the slide rail 51 and the guide rod 54; the reciprocating frame 52 drives the piston plate 43 to slide back and forth in the fluid conversion chamber 41 through the linkage slide bar 53, alternatingly changing the internal volume of the pulse generating chamber 44 and the negative pressure generating chamber 45.

[0055] High-pressure pulse flushing operation: When the piston plate 43 slides forward, it compresses the internal volume of the pulse generating chamber 44, causing the water pressure inside the chamber to rise sharply and form a high-pressure pulse. Clean water flows through the cleaning pipe 31, the one-way outlet valve 312, and the nozzle 32, and is finally sprayed out as a high-pressure pulse water jet from the conical nozzle 322 to powerfully flush the medical area. The one-way outlet valve 312 prevents high-pressure water backflow and ensures stable pulse water pressure. At the same time, the one-way inlet valve 621 is open, and clean water in the circular cavity box 61 continuously replenishes the pulse generating chamber 44, further increasing the pulse water pressure intensity in conjunction with negative pressure suction.

[0056] Synchronous negative pressure waste liquid recovery: While the piston plate 43 compresses the pulse generating chamber 44 forward, the volume of the negative pressure generating chamber 45 increases to form a negative pressure inside the chamber. Under the action of negative pressure, the front hollow ring 21 sucks up the waste liquid generated by rinsing through the negative pressure suction port 22 and the outer distribution hole 15. The waste liquid flows into the negative pressure generating chamber 45 in one direction through the negative pressure suction pipe 23 and the first one-way valve 231, realizing simultaneous rinsing and waste suction, realizing simultaneous rinsing and suction, and immediate rinsing and collection, avoiding waste liquid overflow and pollution.

[0057] Automatic waste liquid discharge: When the piston plate 43 slides back to reset, the volume of the negative pressure generating chamber 45 is compressed, the waste liquid in the chamber is pressurized, and the second one-way valve 252 is opened. The waste liquid is discharged in a directional manner through the waste liquid discharge pipe 25 to the external receiving and collecting pipeline; the first one-way valve 231 is closed to prevent the waste liquid from flowing back to the front adsorption area, and the entire process realizes one-way collection and one-way discharge of waste liquid.

[0058] Post-maintenance reset: After the rinsing operation is completed, release the control button 12, the water pump 7 will stop, and the equipment will stop spraying water and sucking up waste; the nozzle 32 can be disassembled by thread to clean and maintain the internal channel of the nozzle separately to avoid clogging by scale and impurities, and to ensure the long-term rinsing accuracy and cleanliness of the equipment.

[0059] Example 2 Example 2 is the same as Example 1 in the rest, except that: the outside of the water inlet pipe 72 can be switched to connect to an air source or a water source; the one-way water inlet valve 621 can be adapted to bidirectional medium conduction of airflow and water flow; and the nozzle 32 is replaced with a large-diameter guide air nozzle. Utilizing the original pulse cavity structure of the water pump 7, the circular cavity box 61, and the pulse generating chamber 44, compressed air can form a high-frequency pulse airflow in the pulse generating chamber 44, which is then injected at high speed through the conical nozzle 322 to achieve dry pulse blowing dust removal.

[0060] At the same time, the negative pressure generating chamber 45 generates negative pressure synchronously, and the front negative pressure suction port 22 can simultaneously adsorb the dust, particles and debris generated by dry cleaning, realizing a dust-free cleaning mode of dry pulse blowing and negative pressure dust recovery, completely avoiding the problems of moisture, oxidation and short circuit damage of precision medical devices when washed with water.

[0061] This device achieves a dual-medium pulse working mode. Breaking through the limitations of traditional medical rinsing equipment that can only be water-washed and not dry-cleaned, it reuses the original pulse chamber and mechanical reciprocating structure, allowing for switching between water and air dual-medium pulse output without the need for additional power components. Simultaneously, it features a negative pressure dust recovery function, solving the industry pain points of water damage to precision biomedical equipment and secondary pollution from ordinary air blowing. This significantly expands the device's applicability in biomedical engineering, including medical device maintenance, laboratory cleanroom treatment, and pretreatment of minimally invasive devices.

[0062] All structural shapes, sizes, and materials included in Embodiment 1 in this application can be selected and adjusted to meet specific usage needs. The accompanying drawings are schematic structural diagrams, and the actual dimensions can be appropriately adjusted.

[0063] The above description is only a preferred embodiment of this practice, but the scope of protection of this embodiment is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this embodiment, based on the technical solution and inventive concept of this embodiment, should be covered within the scope of protection of this embodiment.

Claims

1. A medical rinsing device for biomedical engineering industry, comprising a rinsing gun body (1), wherein a handle (11) is obliquely arranged on the bottom side of the rinsing gun body (1), a control chip and a power supply are disposed inside the handle (11), a control button (12) is connected to the control chip and the power supply, and a charging port (14) is disposed at the bottom of the handle (11), characterized in that, Also includes: Waste liquid collection mechanism (2) is set inside the flushing gun body (1) and located at the front end of the flushing gun body (1); A fluid rotating mechanism (4) is fixedly installed inside the flushing gun body (1). The fluid rotating mechanism (4) is located behind the waste liquid collection mechanism (2). The fluid rotating mechanism (4) includes a fluid conversion chamber (41). A piston plate (43) is provided inside the fluid conversion chamber (41). The piston plate (43) divides the fluid conversion chamber (41) into a pulse generation chamber (44) and a negative pressure generation chamber (45). The negative pressure generation chamber (45) is connected to the waste liquid collection mechanism (2). A cleaning pipe (31) is connected to the negative pressure generation chamber (45). A nozzle (32) is connected to the front end of the cleaning pipe (31). The nozzle (32) is located at the center of the outer side of the flushing gun body (1). The fluid drive chamber mechanism (6) is located inside the flushing gun body (1) and on the rear side of the flushing gun body (1). The fluid drive chamber mechanism (6) is connected to the fluid rotating ring mechanism (4) by a linkage mechanism (5). A water pump (7) is connected to the fluid drive chamber mechanism (6). The water pump (7) is electrically connected to the control button (12).

2. The medical flushing equipment for biomedical engineering industry according to claim 1, characterized in that, The waste liquid collection mechanism (2) includes a hollow ring (21), which is installed at the front end of the flushing gun body (1). The front end of the hollow ring (21) is connected to multiple negative pressure suction ports (22). Multiple external holes (15) are opened on the front side of the flushing gun body (1). The multiple negative pressure suction ports (22) are arranged in a one-to-one correspondence with the multiple external holes (15). The rear side of the hollow ring (21) is connected to a negative pressure suction tube (23). The negative pressure suction tube (23) is connected to the negative pressure generating chamber (45). A first one-way valve (231) is provided on the negative pressure suction tube (23).

3. The medical flushing device for biomedical engineering industry according to claim 2, characterized in that, The bottom of the negative pressure suction tube (23) is connected to a branch suction tube (24), which penetrates the flushing gun body (1) and extends to the outside. The bottom end of the branch suction tube (24) is provided with a first external thread (241).

4. The medical flushing device for biomedical engineering industry according to claim 1, characterized in that, The bottom side of the negative pressure generating chamber (45) is connected to a waste liquid discharge pipe (25). A second one-way valve (252) is provided on the waste liquid discharge pipe (25). The bottom end of the waste liquid discharge pipe (25) penetrates the flushing gun body (1) and extends to the outside. A second external thread (251) is provided at the bottom end of the waste liquid discharge pipe (25).

5. A medical flushing device for biomedical engineering industry according to claim 1, characterized in that, The cleaning pipe (31) is provided with a one-way water outlet valve (312), the outer end of the cleaning pipe (31) is provided with a nozzle connection thread (311), the inner side of the nozzle (32) is provided with an internal thread (321), the internal thread (321) is threadedly connected to the nozzle connection thread (311), and the front end of the nozzle (32) is provided with a conical nozzle (322).

6. The medical flushing device for biomedical engineering industry according to claim 1, characterized in that, The fluid drive chamber mechanism (6) includes a circular cavity box (61), which is installed inside the flushing gun body (1). A water flow vane (64) is rotatably installed inside the circular cavity box (61). A water supply pipe (73) is connected between the outlet of the water pump (7) and the circular cavity box (61). A solenoid valve (731) is installed on the water supply pipe (73). A water inlet pipe (72) is connected to the inlet of the water pump (7). A sealing cover (13) is provided on the rear side of the flushing gun body (1). The water inlet pipe (72) passes through the sealing cover (13) and extends to the outside.

7. A medical flushing device for biomedical engineering industry according to claim 6, characterized in that, The bottom side of the circular cavity box (61) is connected to a cleaning water supply pipe (62), which is connected to the pulse generating chamber (44). A one-way water inlet valve (621) is provided on the cleaning water supply pipe (62).

8. A medical flushing device for biomedical engineering industry according to claim 1, characterized in that, The linkage mechanism (5) includes a reciprocating screw (57), which is fixedly connected to the water flow vane (64). The reciprocating screw (57) is sealed and rotatably connected to the circular cavity box (61) through a sealed bearing (63). Two reciprocating screw grooves (571) are opened on the outer side of the reciprocating screw (57). A linkage slide rod (53) is fixedly installed on the piston plate (43). A reciprocating frame (52) is installed on the linkage slide rod (53) near the reciprocating screw (57). The reciprocating frame (52) has a U-shaped structure. Slide rods (55) are fixedly installed on the inner walls of both sides of the reciprocating frame (52). The two slide rods (55) are slidably connected to the inner walls of the two reciprocating screw grooves (571).

9. A medical flushing device for biomedical engineering industry according to claim 8, characterized in that, Two slide rails (51) are fixedly installed on the inner wall of the flushing gun body (1). Guide rods (54) are fixedly installed in the two slide rails (51). Guide blocks (56) are slidably installed on the outer side of the two guide rods (54). The two guide blocks (56) are slidably connected to the inner wall of the two slide rails (51). The two guide blocks (56) are fixedly installed on both sides of the reciprocating frame (52).

10. A medical flushing device for biomedical engineering industry according to claim 1, characterized in that, Multiple mounting rods (42) are installed between the outer side of the fluid conversion chamber (41) and the inner wall of the flushing gun body (1). A mounting plate (71) is installed on the rear side of the water pump (7). The water pump (7) is mounted on the inner wall of the flushing gun body (1) through the mounting plate (71).

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