A medical surgical instrument cleaning agent dispensing method and cleaning agent dispensing device

Abstract

The application discloses a medical surgical instrument cleaning agent dispensing device, and adopts a dispensing method including the following steps: two micro diaphragm pumps in the cleaning agent dispensing device work to pump air into a first air duct, then air transmission of the first air duct enters into a second air duct through a four-way valve, a micro water pump pumps cleaning agent from a liquid storage bottle of the cleaning agent dispensing device into a liquid inlet duct, the cleaning agent in the liquid inlet duct enters into a nozzle, a pressing handle of a handheld dispenser in the cleaning agent dispensing device is pressed, the pressing handle pushes an extrusion structure in the handheld dispenser to stop extruding the second air duct and the liquid inlet duct, the cleaning agent in the nozzle is blown into a tip structure at the end of the nozzle through air in the second air duct, and finally the cleaning agent is sprayed from the tip structure to the outside of the handheld dispenser for cleaning surgical instruments, and the cleaning agent can be sprayed in different forms to the outside of the dispensing device for use.

Description

Technical Field

[0001] This invention relates to the field of medical cleaning agent dispensing devices, specifically a method and device for dispensing cleaning agents for medical surgical instruments. Background Technology

[0002] Surgical instruments are used during surgery. After the surgery, the surface of these instruments will have residual substances such as the patient's blood and dirt. If these residues are not cleaned in time, bacteria or viruses will grow on the surface of the instruments, which can easily cause secondary infection to the patient when they are used again.

[0003] To address the issue of surgical instrument residue, medical staff clean the instruments after each surgery. This cleaning process requires the use of specialized cleaning agents. However, due to the structure of the surgical instruments, these agents struggle to penetrate into hidden areas to break down residues, resulting in low-quality cleaning. Furthermore, some surface residues require prolonged immersion in the cleaning agent before they can be washed away.

[0004] To better obtain cleaning agents during surgical instrument cleaning, dispensing devices for distributing cleaning agents have been designed. These dispensing devices generally operate by connecting to an external power source via electrical wires. The pumps used to pump the cleaning agent from the storage container or to spray the cleaning agent outside the device are mostly powered by electricity, resulting in a large total power consumption.

[0005] Therefore, it is necessary to design a method and device for dispensing cleaning agents for medical surgical instruments. Summary of the Invention

[0006] To address the shortcomings of the aforementioned technologies, this invention provides a cleaning agent dispensing method and device that can spray cleaning agents in different forms outside the dispensing device for use, enabling the cleaning agent to be dispensed in the most reasonable way, and facilitating users to clean medical surgical instruments with the cleaning agent.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention discloses a method for dispensing cleaning agent for medical surgical instruments. The dispensing method includes the following steps: Step 1: Two miniature diaphragm pumps in the cleaning agent dispensing device operate to pump air into the first ventilation pipe. Then, the air in the first ventilation pipe is transmitted to the four-way valve. The air then enters the second ventilation pipe through the four-way valve. The air in the second ventilation pipe is continuously transmitted to the nozzle of the handheld dispenser in the cleaning agent dispensing device. Step 2: The cleaning agent is pumped from the storage bottle of the cleaning agent dispensing device by a micro water pump and delivered to the inlet pipe connected to the handheld dispenser. The cleaning agent in the inlet pipe will continuously enter the nozzle. Step 3: Press the handle of the handheld dispenser. The handle pushes the squeezing mechanism inside the handheld dispenser away from the second air pipe and liquid inlet pipe inside the handheld dispenser, so that the second air pipe and liquid inlet pipe are no longer squeezed. The air in the second air pipe and the cleaning agent in the liquid inlet pipe enter the nozzle. Step 4: The cleaning agent entering the nozzle is blown into the end structure of the nozzle end through the air in the second ventilation pipe, and finally sprayed out from the end structure to the handheld dispenser for cleaning surgical instruments.

[0008] Furthermore, in step four, when the end structure is an atomizing end, the cleaning agent will be sprayed out of the handheld dispenser in the form of water mist.

[0009] Furthermore, in step four, when the end structure is a water spray end, the cleaning agent will be sprayed out of the handheld dispenser in the form of water droplets.

[0010] Furthermore, in step four, when the end structure is a foam end, the cleaning agent will be sprayed out of the handheld dispenser in the form of foam.

[0011] This invention also discloses a medical surgical instrument cleaning agent dispensing device, which can perform the above-described dispensing method. The dispensing device includes a housing and a handheld dispenser. A micro diaphragm pump is disposed on one side of the top of the housing, a micro water pump is disposed on one side of the top of the housing, and a storage bottle is disposed in the housing below the micro water pump. A first connector is disposed in the housing above the storage bottle, which is connected to the storage bottle. The first connector is connected to the input end of the micro water pump via a connecting pipe. The output end of the micro water pump is connected to an inlet pipe extending outside the housing. A four-way valve is disposed in the housing outside the micro diaphragm pump. The working end of the micro diaphragm pump is connected to two ports of the four-way valve via a first vent pipe. One of the remaining two ports of the four-way valve is connected to a second vent pipe extending outside the housing. The inlet pipe and the second vent pipe are both inserted into the handheld dispenser and communicate with a nozzle inside the handheld dispenser. The nozzle has an end structure at its end. A pressing handle is hinged to the surface of the handheld dispenser. A squeezing structure is provided at the end of the handheld dispenser near the pressing handle.

[0012] Furthermore, the end-head structure is an atomizing end-head. The top of the handheld dispenser is provided with a first mating hole. At least two first buckles are circumferentially provided on the inner wall of the handheld dispenser outside the first mating hole. A second buckle is circumferentially provided on the outer wall of the bottom of the first connecting end. The bottom of the first connecting end is engaged with the first mating hole through the interlocking of the first and second buckles. A second mating hole is provided inside the bottom of the first connecting end. At least two first slots are circumferentially provided on the bottom wall of the first connecting end outside the second mating hole. At least two third buckles are circumferentially provided on the outer wall of the top of the second connecting end. The top of the second connecting end is engaged with the second mating hole through the interlocking of the third buckles and the first slots. The bottom of the second connecting end is provided with at least... Two first docking ports are provided, with connecting sleeves fitted to the outer sides of the first docking ports. The bottom end of the connecting sleeve is provided with at least two second docking ports communicating with the first docking ports. The liquid inlet pipe and the second vent pipe are both connected to the second docking ports. The end of the second connecting head away from the first docking port is provided with a first cavity communicating with the first docking port. The first docking port in the middle of the first cavity is provided with a spray column extending towards the bottom end of the first connecting head. The inner wall of the first connecting head above the spray column is provided with a first through hole. The outer wall of the top end of the first connecting head is provided with at least two fourth buckles circumferentially. The surface of the bottom end of the atomizing head is provided with at least two second slots circumferentially. The atomizing head is connected to the top end of the first connecting head through the cooperation between the second slots and the fourth buckles.

[0013] Furthermore, the end structure is a water spray end, and the bottom end of the water spray end is provided with at least two third slots in the circumferential direction. The bottom end of the water spray end is engaged with the third buckle through the third slots in the first mating hole outside the top end of the second connecting end. The top end of the water spray end is provided with a water spray column, which extends into the water spray column. The surface of the water spray column is provided with several second through holes.

[0014] Furthermore, the end structure is a foam end, and a third mating hole is provided in the first connecting end above the first through hole, and the foam end is fitted into the third mating hole.

[0015] Furthermore, the extrusion structure includes a spring and an extrusion block. The inner wall of the bottom end of the handheld dispenser away from the pressing handle is provided with a spring mating seat. The middle of the spring mating seat is provided with a fourth mating hole, and the spring is mated in the fourth mating hole. At least two fifth mating holes are provided at both the upper and lower ends of the spring mating seat, distributed along the length direction of the handheld dispenser. The liquid inlet pipe and the second vent pipe are both inserted into the fifth mating holes. The end of the extrusion block near the fourth mating hole is provided with a first protrusion, and the spring is sleeved on the outside of the first protrusion. The bottom wall of the handheld dispenser near the pressing handle is provided with a third through hole. The end of the extrusion block near the third through hole is provided with a second protrusion, and the second protrusion extends outside the third through hole.

[0016] Furthermore, a battery compartment is provided inside the outer casing of the liquid storage bottle.

[0017] The beneficial effects of this invention are as follows: Using this dispensing method, the cleaning agent can be sprayed out of the dispensing device in different forms for use, so that the cleaning agent can be distributed in the most reasonable way, making it convenient for users to use the cleaning agent to clean medical surgical instruments; moreover, the device used with the dispensing method can dispense the cleaning agent without the use of electricity, with low static power and low energy consumption during operation. It does not need to be connected to a power source to work, making it convenient to carry to different locations for work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the principle of this allocation method.

[0019] Figure 2 This is a schematic diagram illustrating the principle of step four.

[0020] Figure 3 This is a schematic diagram of the external structure of the distribution device.

[0021] Figure 4 This is a schematic diagram of the internal structure of the distribution device.

[0022] Figure 5This is a schematic diagram of the external structure of a handheld dispenser.

[0023] Figure 6 This is a schematic diagram of the internal structure of a handheld dispenser.

[0024] Figure 7 This is a schematic diagram of the external structure of a handheld dispenser that uses an atomizing tip as its tip structure.

[0025] Figure 8 This is a schematic diagram of the internal structure of a handheld dispenser that uses an atomizing tip as its end-cap structure. Figure 1 .

[0026] Figure 9 This is a schematic diagram of the internal structure of a handheld dispenser that uses an atomizing tip as its end-cap structure. Figure 2 .

[0027] Figure 10 This is a schematic diagram of the external structure of a handheld dispenser that uses a water spray nozzle as its end structure.

[0028] Figure 11 This is a schematic diagram of the internal structure of a handheld dispenser that uses a water spray nozzle as its end structure.

[0029] Figure 12 This is a schematic diagram of the external structure of a handheld dispenser that uses a foam tip as the tip structure.

[0030] Figure 13 This is a schematic diagram of the internal structure of a handheld dispenser that uses a foam tip as its end structure.

[0031] Figure 14 Schematic diagram of the extrusion structure Figure 1 .

[0032] Figure 15 Schematic diagram of the extrusion structure Figure 2 .

[0033] In the diagram, 1. Housing; 2. Handheld dispenser; 3. Miniature diaphragm pump; 4. Miniature water pump; 5. Storage bottle; 6. First connector; 7. Connecting pipe; 8. Inlet pipe; 9. First vent pipe; 10. Four-way valve; 11. Second vent pipe; 12. Nozzle; 13. End structure; 14. Press handle; 15. Extrusion structure; 16. Atomizing end; 17. First mating hole; 18. First snap-fit; 19. Second snap-fit; 20. First connecting end; 21. Second mating hole; 22. First slot; 23. Third snap-fit; 24. First connector 25. Connecting port; 26. Second docking port; 27. First cavity; 28. First through hole; 29. ​​Fourth buckle; 30. Second slot; 31. Water spray end; 32. Third slot; 33. Water spray column; 34. Second through hole; 35. Foam end; 36. Third mating hole; 37. Spring; 38. Extrusion block; 39. Spring mating seat; 40. Fourth mating hole; 41. Fifth mating hole; 42. First protrusion; 43. Third through hole; 44. Second protrusion; 45. Battery box; 46. Spray column; 47. Second connecting end. Detailed Implementation

[0034] This invention discloses a method for dispensing a cleaning agent for medical surgical instruments, such as... Figure 1 As shown, the dispensing method includes the following steps: Step 1: Two miniature diaphragm pumps in the cleaning agent dispensing device work to pump air into the first ventilation pipe, and then the air in the first ventilation pipe is transmitted to the four-way valve, and the air then enters the second ventilation pipe through the four-way valve, and the air in the second ventilation pipe is continuously transmitted to the nozzle of the handheld dispenser in the cleaning agent dispensing device. Step 2: The cleaning agent is pumped from the storage bottle of the cleaning agent dispensing device by a micro water pump and delivered to the inlet pipe connected to the handheld dispenser. The cleaning agent in the inlet pipe will continuously enter the nozzle. Step 3: Press the handle of the handheld dispenser. The handle pushes the squeezing mechanism inside the handheld dispenser away from the second air pipe and liquid inlet pipe inside the handheld dispenser, so that the second air pipe and liquid inlet pipe are no longer squeezed. The air in the second air pipe and the cleaning agent in the liquid inlet pipe enter the nozzle. Step 4: The cleaning agent entering the nozzle is blown into the end structure of the nozzle end through the air in the second ventilation pipe, and finally sprayed out from the end structure to the handheld dispenser for cleaning surgical instruments.

[0035] Using this dispensing method, it is only necessary to control the amount of pressure exerted by the pressing handle on the squeezing structure, so that the cleaning agent is sprayed out of the dispensing device in the form of water mist, water droplets or foam for cleaning medical surgical instruments. This allows the cleaning agent to be dispensed in the most reasonable form, making it convenient for users to clean medical surgical instruments with the cleaning agent.

[0036] like Figure 2 As shown, in step four, when the end structure is an atomizing end, the cleaning agent will be sprayed out of the handheld dispenser in the form of water mist.

[0037] When the cleaning agent is used to clean medical surgical instruments in the form of water mist, if the medical surgical instruments are placed in a closed space, the water mist cleaning agent can diffuse around the medical surgical instruments, so that the cleaning agent can be evenly sprayed onto the surface of the medical surgical instruments, resulting in a better cleaning effect.

[0038] like Figure 2 As shown, in step four, when the end structure is a water spray end, the cleaning agent will be sprayed out of the handheld dispenser in the form of water droplets.

[0039] Among them, when the cleaning agent is used to clean medical surgical instruments in the form of water droplets, the cleaning dose taken out at one time is the largest, so that a large amount of cleaning agent can be obtained quickly for use, which can meet the needs when the demand for cleaning agent is large.

[0040] like Figure 2 As shown, in step four, when the end structure is a foam end, the cleaning agent will be sprayed out of the handheld dispenser in the form of foam.

[0041] When the cleaning agent cleans medical surgical instruments in the form of foam, the foam can better encapsulate the instruments, allowing the cleaning agent to more comprehensively cover them. This enables the cleaning agent to better remove bacteria and stains from the instruments during cleaning.

[0042] This invention also discloses a medical surgical instrument cleaning agent dispensing device, such as... Figures 3-5As shown, the dispensing device can perform the above-described dispensing method. The dispensing device includes a housing 1 and a handheld dispenser 2. A miniature diaphragm pump 3 is located inside one side of the top of the housing 1. A miniature water pump 4 is located inside one side of the top of the housing 1. A storage bottle 5 is located inside the housing 1 below the miniature water pump 4. A first connector 6, which mates with the storage bottle 5, is located inside the housing 1 above the storage bottle 5. The first connector 6 is connected to the input end of the miniature water pump 4 via a connecting pipe 7. The output end of the miniature water pump 4 is connected to an inlet pipe extending outside the housing 1. The four-way valve 10 is located inside the housing 1 outside the micro diaphragm pump 3. The working end of the micro diaphragm pump 3 is connected to two ports of the four-way valve 10 via a first vent pipe 9. One of the remaining two ports of the four-way valve 10 is connected to a second vent pipe 11 extending outside the housing 1. Both the liquid inlet pipe 8 and the second vent pipe 11 are inserted into the handheld dispenser 2 and communicate with the nozzle 12 inside the handheld dispenser 2. The nozzle 12 has an end structure 13 at its end. A pressing handle 14 is hinged to the surface of the handheld dispenser 2. A squeezing structure 15 is provided in the end of the handheld dispenser 2 near the pressing handle 14.

[0043] The handheld dispenser 2 is handheld and allows manual control of the spraying of cleaning agent to the location of the medical surgical instruments. The miniature diaphragm pump 3 can pump air into the handheld dispenser 2 without the need for electricity. The port of the four-way valve 10 without a pipe connection is the air inlet. When dispensing cleaning agent, the size of the opening of the second ventilation pipe 11 can be controlled by pressing the handle 14 to squeeze the squeezing structure 15, thereby controlling the amount of air entering the nozzle 12 through the second ventilation pipe 11, and thus controlling the amount of cleaning agent sprayed out of the handheld dispenser 2.

[0044] This dispensing device can dispense cleaning agents without the need for electricity. It has low static power and low energy consumption during operation. It only needs to provide power to the micro water pump 4. It has a simple structure and does not need to be connected to a power source to work, making it convenient to carry to different locations for operation.

[0045] As one of the implementation methods of this technical solution, such as Figures 6-9As shown, the end structure 13 is an atomizing end 16. The top of the handheld dispenser 2 is provided with a first mating hole 17. At least two first buckles 18 are provided circumferentially on the inner wall of the handheld dispenser 2 outside the first mating hole 17. The outer wall of the bottom of the first connecting end 20 is provided circumferentially with a second buckle 19. The bottom of the first connecting end 20 is engaged with the first mating hole 17 through the mutual snapping between the first buckle 18 and the second buckle 19. The bottom of the first connecting end 20 is provided with a second mating hole 21. At least two first slots 22 are provided circumferentially on the bottom wall of the connecting end 20 outside the second mating hole 21. At least two third buckles 23 are provided circumferentially on the outer wall of the top of the second connecting end 47. The top of the second connecting end 47 is engaged with the first slots 22 through the snapping between the third buckles 23 and the first slots 22 in the second mating hole 21. The bottom of the second connecting end 47 is provided with at least two first... The first docking port 24 is fitted with a connecting sleeve 25 on its outer side. The bottom end of the connecting sleeve 25 is provided with at least two second docking ports 26 that communicate with the first docking port 24. The liquid inlet pipe 8 and the second vent pipe 11 are both connected to the second docking ports 26. The end of the second connecting end 47 away from the first docking port 24 is provided with a first cavity 27 that communicates with the first docking port 24. The first docking port 24 in the middle of the first cavity 27 is provided with a spray column 46 extending towards the bottom end of the first connecting end 20. The inner wall of the first connecting end 20 above the spray column 46 is provided with a first through hole 28. The outer wall of the top end of the first connecting end 20 is provided with at least two fourth buckles 29 in a circumferential direction. The surface of the bottom end of the atomizing end 16 is provided with at least two second slots 30 in a circumferential direction. The atomizing end 16 is connected to the top end of the first connecting end 20 through the cooperation between the second slots 30 and the fourth buckles 29.

[0046] The first connecting end 20 is connected to the handheld dispenser 2 via a detachable snap-fit ​​structure. When the first connecting end 20 is damaged, it can be disassembled and replaced. The atomizing end 16 is connected to the top of the first connecting end 20 via a detachable snap-fit ​​structure. When it is necessary to change the form of the cleaning agent sprayed outside the dispensing device, the atomizing end 16 can be disassembled. The cleaning agent is sprayed out of the spray column 46 and reaches the top of the first connecting end 20 through the first through hole 28. Then, when the cleaning agent passes through the atomizing end 16, it will form a mist and be discharged from the port of the atomizing end 16.

[0047] As one of the implementation methods of this technical solution, such as Figure 10 and Figure 11As shown, the end structure 13 is a water spray end 31. The bottom end of the water spray end 31 is provided with at least two third slots 32. The bottom end of the water spray end 31 is engaged with the third buckle 23 through the third slots 32 in the first mating hole 17 outside the top end of the second connecting end 47. The top end of the water spray end 31 is provided with a water spray column 33. The spray column 46 extends into the water spray column 33. The surface of the spray column 46 is provided with several second through holes 34.

[0048] When using the water spray nozzle 31, the first connecting nozzle 20 needs to be disassembled, and then the water spray nozzle 31 is inserted into the end of the handheld dispenser 2 along the direction of the third slot 32 and the third buckle 23. If the water spray nozzle 31 is damaged in the first connecting nozzle 20, it can also be disassembled and replaced through the detachable connection structure. The cleaning agent is sprayed out of the spray column 46 and enters the water spray column 33. Then the cleaning agent is sprayed out of the handheld dispenser 2 through the second through hole 34 on the surface of the spray column 46.

[0049] As one of the implementation methods of this technical solution, such as Figure 12 and Figure 13 As shown, the end structure 13 is a foam end 35, and a third mating hole 36 is provided in the first connecting end 20 above the first through hole 28, and the foam end 35 is mated in the third mating hole 36.

[0050] The cleaning agent enters the space at the top of the first connecting end 20 after passing through the spray column 46. When the cleaning agent passes through the foam end 35, it can generate a large amount of foam, which can then be used to clean surgical instruments.

[0051] like Figure 6 , Figure 14 and Figure 15 As shown, the extrusion structure 15 includes a spring 37 and an extrusion block 38. The inner wall of the bottom end of the handheld dispenser 2 away from the pressing handle 14 is provided with a spring mating seat 39. The middle part of the spring mating seat 39 is provided with a fourth mating hole 40. The spring 37 is mated in the fourth mating hole 40. At least two fifth mating holes 41 are provided at both the upper and lower ends of the spring mating seat 39, which are distributed along the length direction of the handheld dispenser 2. The liquid inlet pipe 8 and the second vent pipe 11 are inserted into the fifth mating holes 41. The end of the extrusion block 38 near the fourth mating hole 40 is provided with a first protrusion 42. The spring 37 is sleeved on the outside of the first protrusion 42. The bottom wall of the handheld dispenser 2 near the pressing handle 14 is provided with a third through hole 43. The end of the extrusion block 38 near the third through hole 43 is provided with a second protrusion 44, which extends to the outside of the third through hole 43.

[0052] In normal operation, the spring 37 continuously pushes the squeezing block 38 towards the side closer to the pressing handle 14, thereby squeezing the second vent pipe 11 and the liquid inlet pipe 8 and restricting the cleaning agent from being sprayed from the handheld dispenser 2. When the operator presses the pressing handle 14 towards the squeezing block 38, the pressing handle 14 moves towards the second protrusion 44 and squeezes the second protrusion 44, thereby causing the squeezing block 38 to move away from the pressing handle 14. The squeezing block 38 no longer squeezes the second vent pipe 11 and the liquid inlet pipe 8, allowing the air and cleaning agent inside the second vent pipe 11 and the liquid inlet pipe 8 to be transmitted to the nozzle 12.

[0053] like Figure 4 As shown, a battery box 45 is provided inside the outer casing 1 of the liquid storage bottle 5.

[0054] The battery box 45 can hold the batteries needed to provide power to the electrical components in the dispensing device. The miniature water pump 4 and control circuit components (not shown in the figure) in the dispensing device require less power, so there is no need to worry about the battery life of the dispensing device. It can work without being connected to an external power source, making it not only easy to carry, but also allowing it to work anytime, anywhere.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A medical surgical instrument cleaning agent dispensing device, wherein the cleaning agent dispensing method of the dispensing device includes the following steps: Step 1: The two miniature diaphragm pumps in the cleaning agent dispensing device pump air into the first ventilation pipe. The air in the first ventilation pipe is then transferred to the four-way valve, and the air then enters the second ventilation pipe through the four-way valve. The cleaning agent in the second ventilation pipe is continuously transferred to the nozzle of the handheld dispenser in the cleaning agent dispensing device. Step 2: The cleaning agent is pumped from the storage bottle of the cleaning agent dispensing device by a micro water pump and delivered to the inlet pipe connected to the handheld dispenser. The cleaning agent in the inlet pipe will continuously enter the nozzle. Step 3: Press the handle of the handheld dispenser. The handle pushes the squeezing mechanism inside the handheld dispenser away from the second air pipe and liquid inlet pipe inside the handheld dispenser, so that the second air pipe and liquid inlet pipe are no longer squeezed. The air in the second air pipe and the cleaning agent in the liquid inlet pipe enter the nozzle. Step 4: The cleaning agent entering the nozzle is blown into the end structure of the nozzle tip by air through the second vent pipe, and finally sprayed out from the end structure to the handheld dispenser for cleaning surgical instruments; Its characteristic is: The dispensing device includes a housing and a handheld dispenser. The micro diaphragm pump is located inside one side of the top of the housing, the micro water pump is located inside one side of the top of the housing, and the liquid storage bottle is located inside the housing below the micro water pump. A first connector is provided inside the housing above the liquid storage bottle to mate with the liquid storage bottle. The first connector is connected to the input end of the micro water pump via a connecting pipe. The output end of the micro water pump is connected to an inlet pipe extending outside the housing. A four-way valve is located inside the housing outside the micro diaphragm pump. The working end of the micro diaphragm pump is connected to two ports of the four-way valve via a first vent pipe. One of the other two ports of the four-way valve is connected to a second vent pipe extending outside the housing. The inlet pipe and the second vent pipe are both inserted into the handheld dispenser and communicate with a nozzle inside the handheld dispenser. The nozzle has an end structure at its end. A pressing handle is hinged to the surface of the handheld dispenser, and a squeezing structure is provided inside the end of the handheld dispenser near the pressing handle. The end structure is an atomizing end. The top of the handheld dispenser has a first mating hole. The handheld dispenser is connected to the first connecting end via a detachable snap-fit ​​structure. At least two first buckles are circumferentially located on the inner wall of the handheld dispenser outside the first mating hole. A second buckle is circumferentially located on the outer wall of the bottom of the first connecting end. The bottom of the first connecting end is engaged with the first mating hole via the interlocking of the first and second buckles. A second mating hole is located inside the bottom of the first connecting end. A second connecting end is located inside the second mating hole. At least two first slots are circumferentially located on the bottom wall of the first connecting end outside the second mating hole. At least two third buckles are circumferentially located on the outer wall of the top of the second connecting end. The top of the second connecting end is engaged with the first slots via the interlocking of the third buckles. Inside the two mating holes, the bottom end of the second connecting end is provided with at least two first mating ports. A connecting sleeve is fitted to the outside of the first mating ports. The bottom end of the connecting sleeve is provided with at least two second mating ports that communicate with the first mating ports. The liquid inlet pipe and the second vent pipe are both mated with the second mating ports. The end of the second connecting end away from the first mating port is provided with a first cavity that communicates with the first mating port. The first mating port in the middle of the first cavity is provided with a spray column extending towards the bottom end of the first connecting end. The inner wall of the first connecting end above the spray column is provided with a first through hole. The outer wall of the top end of the first connecting end is provided with at least two fourth buckles in the circumferential direction. The surface of the bottom end of the atomizing end is provided with at least two second slots in the circumferential direction. The atomizing end is connected to the top end of the first connecting end through the cooperation between the second slots and the fourth buckles.

2. The medical surgical instrument cleaning agent dispensing device according to claim 1, characterized in that, The end structure is a water spray end. The bottom end of the water spray end is provided with at least two third slots in the circumferential direction. The bottom end of the water spray end is engaged with the third buckle in the first mating hole outside the top end of the second connecting end through the snap-fit ​​between the third slot and the third buckle. The top end of the water spray end is provided with a water spray column. The water spray column extends into the water spray column. The surface of the water spray column is provided with several second through holes.

3. The medical surgical instrument cleaning agent dispensing device according to claim 1, characterized in that, The end structure is a foam end, and a third mating hole is provided in the first connecting end above the first through hole, and the foam end fits into the third mating hole.

4. The medical surgical instrument cleaning agent dispensing device according to claim 1, characterized in that, The extrusion structure includes a spring and an extrusion block. The inner wall of the bottom end of the handheld dispenser away from the handle is provided with a spring mating seat. The middle of the spring mating seat is provided with a fourth mating hole, and the spring is mated in the fourth mating hole. At least two fifth mating holes are provided at both the upper and lower ends of the spring mating seat, distributed along the length of the handheld dispenser. The liquid inlet pipe and the second vent pipe are both inserted into the fifth mating holes. The end of the extrusion block near the fourth mating hole is provided with a first protrusion, and the spring is sleeved on the outside of the first protrusion. The bottom wall of the handheld dispenser near the handle is provided with a third through hole. The end of the extrusion block near the third through hole is provided with a second protrusion, and the second protrusion extends outside the third through hole.

5. A medical surgical instrument cleaning agent dispensing device according to claim 1, characterized in that, A battery box is located inside the outer casing of the liquid storage bottle.

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