Variable-frequency vacuum sudden boiling cleaning method for pulsating vacuum cleaning sterilizer

Abstract

The invention relates to a variable-frequency vacuum sudden-boiling cleaning method for a pulsating vacuum cleaning sterilizer, which comprises the following steps of: 1, flushing stage: setting the cleaning temperature to be lower than 45 degrees, vacuumizing by a variable-frequency vacuum pump at a constant frequency output vacuum rate of 40-50Hz, and quickly vacuumizing by the vacuum pump at an abrupt frequency output vacuum rate when the pressure in a cleaning cabin reaches a set value, flushing in a pulsating vacuum mode; 2, adding a cleaning agent for main cleaning, wherein the cleaning temperature is set to be 45-50 DEG C so as to ensure the activity of the cleaning agent; when the water temperature is lower than 45 DEG C, executing the scheme in the step 1, and when the water temperature reaches 45 DEG C or above, executing the stroke a and breaking vacuum; and step 3, rinsing. The variable-frequency vacuum sudden boiling cleaning technology is applied to pulsating vacuum cleaning and disinfecting equipment, pollutants on the inner surface and the outer surface of an instrument can be rapidly and effectively neutralized, decomposed, stripped and washed away, the cleaning efficiency is obviously improved, dense washing bubbles are formed in the cleaning process, the frequency is low, and damage to the precise instrument is almost zero.

Description

Technical Field

[0001] The invention relates to a vacuum cleaning method for medical equipment, in particular to a variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine. Background Art

[0002] Existing vacuum cleaning equipment begins boiling when the cleaning fluid reaches the set temperature and pressure, maintaining this boiling point for a set period of time. This flushing action is essentially constant and limited, resulting in a relatively long cleaning process, typically requiring more than 10 minutes at temperatures between 45°C and 55°C. Ultrasonic waves, such as ultrasound or perfusion, are also required for satisfactory cleaning. While the bubbles created by ultrasound can clean, the high-frequency shock waves they generate can blunt and damage delicate instruments. Ultrasonic waves, with a frequency of 28,000 to 40,000 per second, can blunt the cutting edge or tip of instruments, hindering their use. Furthermore, perfusion through the lumen cannot clean the interface. Ultrasonic waves also generate high-frequency oscillation signals, creating noise pollution in the work environment. Long-term exposure to high-frequency ultrasonic signal stimulation can cause hearing loss, dizziness, tinnitus, and neurasthenia.

[0003] Existing vacuum cleaning equipment, often named after vacuum or negative pressure (reduced pressure), relies on ultrasonic and perfusion-assisted cleaning technologies to achieve acceptable cleaning results. For example, a large domestic listed company uses pulsating vacuum-assisted ultrasonic cleaning technology, while a Guangdong company employs a four-in-one cleaning technology of vacuum, ultrasonic, perfusion, and spraying. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the existing technology and provide a variable frequency vacuum sudden boiling cleaning method for pulsating vacuum cleaning equipment, which can greatly shorten the cleaning time, improve the cleaning quality, ensure the cleaning effect, and improve the product working efficiency.

[0005] The technical problem to be solved by the present invention is achieved by the following technical solution. The present invention is a variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine, which is characterized by the following steps: Step 1, Flushing Phase: (This step is optional) Set the cleaning temperature below 45°C. The variable frequency vacuum pump operates at a constant frequency of 40Hz-50Hz, outputting a vacuum rate of K = 20L / S-30L / S. When the pressure in the cleaning chamber reaches the set value A = -0.070Mpa--0.08Mpa, the vacuum pump rapidly switches to a frequency of 55Hz-60Hz, outputting a vacuum rate of L = 30L / S-64L / S, rapidly evacuating the chamber. When the set vacuum level B = -0.088Mpa--0.09Mpa is reached, the valve is automatically controlled to operate. Combined with the bubble generator at the bottom of the chamber, dense boiling bubbles are generated to rapidly flush contaminated equipment. When the chamber pressure returns to C = -0.05Mpa--0.02Mpa, the variable frequency vacuum pump operates again at a constant vacuum rate of K = 20L / S-30L / S, while controlling the automatic valve. Repeat the above steps for pulsating vacuum flushing until the flushing time is over. Step 2, add detergent for main cleaning: the cleaning temperature is set at 45°~50° to ensure the activity of the detergent; when the water temperature is lower than 45°, execute step 1. When the water temperature reaches 45° and above, execute stroke a: the variable frequency vacuum pump first vacuums at a constant vacuum rate of K=20L / S~30L / S. When the vacuum degree D=-0.088Mpa~-0.09Mpa is reached, the cleaning liquid begins to boil and forms a flushing of the contaminated equipment. The maintenance time E=10-20 seconds. After the maintenance time ends, the variable frequency vacuum pump quickly vacuums at a steep vacuum rate of L=30L / S~64L / S The sudden change in vacuum causes the cleaning fluid to suddenly accelerate boiling and flushing, quickly stripping away contaminants attached to the instrument. After maintaining the set time F = 10-40 seconds, the bubble generator at the bottom of the equipment combines to form a bombardment of boiling bubbles, further strengthening the flushing force and disturbing the cleaning fluid. When the pressure in the cleaning chamber reaches G = -0.06Mpa ~ -0.04Mpa, the vacuum is broken, creating an impact flushing of contaminants inside and outside the lumen, causing them to fall off. When the pressure reaches H = -0.04Mpa ~ -0.01Mpa, the a step is repeated, and the pulsating vacuum cleaning is repeated over and over again until the time is up. The main cleaning time of this method with the cleaning agent is preferably 6-8 minutes.

[0006] Step 3, rinsing: When the set temperature is lower than 45°, perform the rinse program in step 1. When the set temperature reaches 45° or above, perform the rinse program in step 2 a, using a pulsating vacuum rinse method until the rinse time is over.

[0007] The variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfection machine of the present invention described above has a further preferred technical solution: in step 1, during the rinsing stage, the cleaning temperature is set to be lower than 45°, and the variable frequency vacuum pump outputs a vacuum rate K=25L / S at a constant frequency of 45Hz to evacuate the chamber. When the pressure in the cleaning chamber reaches the set value A=-0.075Mpa, the vacuum pump outputs a vacuum rate L=35L / S at a steep frequency of 60Hz to evacuate the chamber quickly. When the set vacuum degree B=-0.089Mpa is reached, the valve is automatically controlled to move, and the bubble generator at the bottom of the chamber is combined to form dense boiling bubbles to quickly flush the contaminated equipment. When the pressure in the chamber returns to C=-0.03Mpa, the variable frequency vacuum pump is again evacuated at a constant vacuum rate of K=25L / S, and the automatic valve is controlled at the same time. The above steps are repeated for pulsating vacuum flushing until the flushing time is over.

[0008] The variable frequency vacuum sudden boiling cleaning method for the pulsating vacuum cleaning and disinfection machine of the present invention described above has a further preferred technical solution: in step 2, the cleaning agent is added for main cleaning: the cleaning temperature is set at 50° to ensure the activity of the cleaning agent; when the water temperature is lower than 45°, step 1 is performed; when the water temperature reaches 45° or above, a stroke is performed: the variable frequency vacuum pump is first vacuumed at a constant vacuum rate of K = 25L / S, and when the vacuum degree D = -0.088Mpa is reached, the cleaning liquid begins to boil and forms a flushing of the contaminated equipment, and the maintenance time E = 15 seconds. When the maintenance time ends, the variable frequency vacuum pump is pumped at a steep speed. The vacuum rate is changed to L=35L / S for rapid vacuuming. The sudden change of vacuum degree causes the cleaning liquid to suddenly accelerate boiling and flushing, quickly stripping off the attached pollutants on the instrument. After maintaining the set time F=25 seconds, combined with the bubble generator at the bottom of the equipment, bombarding boiling bubbles are formed, and the flushing force is strengthened again, disturbing the cleaning liquid. When the pressure in the cleaning chamber reaches G=-0.05Mpa, the vacuum is broken, forming an impact flushing on the pollutants inside and outside the lumen, causing them to fall off. When it reaches H=-0.025Mpa, the a stroke is repeated, and the pulsating vacuum cleaning is repeated over and over again until the time is up.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The method of the present invention accurately controls the vacuum requirements of three different cleaning stages, namely flushing, main cleaning with adding detergent, and rinsing, through the adjustment of a variable frequency vacuum pump and an automatic control valve, realizes automatic adjustment of the required range of cabin pressure in different cleaning stages, and realizes pulsating vacuum cleaning by combining vacuum breaking and boiling bubbles.

[0010] The variable frequency vacuum sudden boiling cleaning technology of the present invention, when applied to pulsating vacuum cleaning and disinfection equipment, can quickly and effectively neutralize, decompose, peel off, and flush away pollutants on the inner and outer surfaces of instruments, significantly improving cleaning efficiency and cleaning quality. It is superior to conventional cleaning machines with vacuum functions, thereby effectively avoiding the risks of infection caused by medical operations.

[0011] Practice has proved that the pulsating vacuum cleaning and disinfection equipment using the method of the present invention has a cleaning temperature of 50° and a cleaning time of 6 to 8 minutes. After multiple cleaning tests and comparisons using the medical industry standard STF cleaning test card, the cleaning pass rate is 100%. The cleaning effect is better than other vacuum cleaning machines. At the same time, it also greatly shortens the entire cleaning process time and improves product work efficiency.

[0012] The dense flushing bubbles formed during the cleaning process of the method of the present invention are similar to ultrasonic cleaning, but the frequency is low, and the damage to precision instruments is almost zero and can be ignored. The dense bubbles formed by ultrasonic waves have a frequency of 28~40Khz / S and an impact force 1000 times greater, especially causing blunt damage to precision instruments such as ophthalmic surgical instruments, surgical scissors, etc., thereby reducing the service life of the instruments and invisibly increasing the cost of medical treatment and patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a reference diagram of the cleaning curve of the method of the present invention. DETAILED DESCRIPTION

[0014] The specific technical solutions of the present invention are further described below to facilitate further understanding of the present invention by those skilled in the art, but do not constitute a limitation to their rights.

[0015] Example 1, reference Figure 1 A variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine, the steps of which are as follows: Step 1, flushing stage: set the cleaning temperature to below 45°, and the variable frequency vacuum pump outputs a vacuum rate of K = 20L / S at a constant frequency of 40-50Hz to evacuate. When the pressure in the cleaning chamber reaches the set value A = -0.070Mpa, the vacuum pump outputs a vacuum rate of L = 30L / S at a steep frequency of 55Hz, and quickly evacuates. When the set vacuum degree B = -0.088Mpa is reached, the valve is automatically controlled to operate. Combined with the bubble generator at the bottom of the chamber, dense boiling bubbles are formed to quickly flush the contaminated equipment. When the pressure in the chamber returns to C = -0.05Mpa, the variable frequency vacuum pump again evacuates at the constant vacuum rate K and controls the automatic valve at the same time. Repeat the above steps to flush in a pulsating vacuum manner until the flushing time ends. Step 2, add detergent for main cleaning: the cleaning temperature is set at 45° to ensure the activity of the detergent; when the water temperature is lower than 45°, execute step 1. When the water temperature reaches 45° or above, execute step a: the variable frequency vacuum pump first evacuates at a constant vacuum rate K. When the vacuum degree D = -0.088Mpa is reached, the cleaning liquid begins to boil and forms a flushing of the contaminated equipment. The maintenance time E = 10 seconds. After the maintenance time ends, the variable frequency vacuum pump quickly evacuates at a steep vacuum rate L. The steep change in vacuum degree causes the cleaning liquid to suddenly accelerate Boiling flushing quickly strips off the attached contaminants on the instrument. After maintaining the set time F = 10 seconds, the bubble generator at the bottom of the equipment is combined to form a bombardment-style boiling bubble, which further strengthens the flushing force and disturbs the cleaning liquid. When the pressure in the cleaning chamber reaches G = -0.06Mpa, the vacuum is broken, forming an impact flushing on the contaminants inside and outside the lumen to make them fall off. When it reaches H = -0.04Mpa, the a step is repeated, and the pulsating vacuum cleaning is repeated over and over again until the time is up. The main cleaning time is set to 6 minutes Step 3, rinsing: When the set temperature is lower than 45°, perform the rinse program in step 1. When the set temperature reaches 45° or above, perform the rinse program in step 2 a, using a pulsating vacuum rinse until the rinse time is over.

[0016] Example 2, reference Figure 1 A variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine, the steps of which are as follows: Step 1, flushing stage: set the cleaning temperature to below 45°, and the variable frequency vacuum pump outputs a vacuum rate of K=30L / S at a constant frequency of 50Hz to evacuate. When the pressure in the cleaning chamber reaches the set value A=-0.08Mpa, the vacuum pump outputs a vacuum rate of L=64L / S at a steep frequency of 60Hz to quickly evacuate. When the set vacuum degree B=-0.09Mpa is reached, the valve is automatically controlled to operate. Combined with the bubble generator at the bottom of the chamber, dense boiling bubbles are formed to quickly flush the contaminated equipment. When the pressure in the chamber returns to C=-0.02Mpa, the variable frequency vacuum pump again evacuates at a constant vacuum rate of K=30L / S and controls the automatic valve at the same time. Repeat the above steps to flush in a pulsating vacuum manner until the flushing time ends. Step 2, add detergent for main cleaning: the cleaning temperature is set at 50° to ensure the activity of the detergent; when the water temperature is lower than 45°, execute step 1. When the water temperature reaches 45° or above, execute trip a: the variable frequency vacuum pump first evacuates at a constant vacuum rate of K = 30L / S. When the vacuum degree D = -0.09Mpa is reached, the cleaning liquid begins to boil and forms a flushing of the contaminated equipment. The maintenance time E = 20 seconds. After the maintenance time is over, the variable frequency vacuum pump quickly evacuates at a steep vacuum rate of L = 64L / S. The steep change in vacuum degree makes the cleaning The liquid suddenly accelerates boiling and flushing, quickly stripping off the attached pollutants on the instrument. After maintaining the set time F = 40 seconds, combined with the bubble generator at the bottom of the equipment, bombarding boiling bubbles are formed, which further strengthen the flushing force and disturb the cleaning liquid. When the pressure in the cleaning chamber reaches G = -0.04Mpa, the vacuum is broken, forming an impact flushing of the pollutants inside and outside the lumen, causing them to fall off. When it reaches H = -0.01Mpa, the a stroke is repeated, and the pulsating vacuum cleaning is repeated over and over again until the time is up; the main cleaning time is set to 8 minutes.

[0017] Step 3, rinsing: When the set temperature is lower than 45°, perform the rinse program in step 1. When the set temperature reaches 45° or above, perform the rinse program in step 2 a, using a pulsating vacuum rinse method until the rinse time is over.

[0018] Example 3, reference Figure 1 A variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine, the steps of which are as follows: Principle: Through the adjustment of the variable frequency vacuum pump and automatic control valve, the vacuum degree requirements for different cleaning stages are accurately controlled, and the required range of cabin pressure for different cleaning stages is automatically adjusted. Combined with vacuum breaking X and boiling bubbles V, pulsating vacuum cleaning is achieved.

[0019] Step 1: Rinsing stage: Set the cleaning temperature below 45° to prevent protein coagulation and denaturation. The variable frequency vacuum pump outputs a 45Hz vacuum rate K (25L / S) at a constant frequency to evacuate the chamber. When the pressure in the cleaning chamber reaches a set value A (-0.075Mpa), the vacuum pump outputs a vacuum rate L (35L / S) at a steep frequency (60Hz) to quickly evacuate the chamber. When the set vacuum degree B (-0.089Mpa) is reached, the valve is automatically controlled to move. Combined with the bubble generator M at the bottom of the chamber, dense boiling bubbles V are formed to quickly flush the contaminated equipment. When the pressure in the chamber returns to C (-0.03Mpa), the variable frequency vacuum pump again evacuates the chamber at a constant vacuum rate K and controls the automatic valve at the same time. Repeat A, B, C, K, L, M, V in a pulsating vacuum flushing process until the flushing time is over.

[0020] Step 2: Add detergent for main cleaning: The cleaning temperature is generally set at 50° to ensure the activity of the detergent. When the water temperature is below 45°, execute step 1. When the water temperature reaches 45° or above, execute a: The variable frequency vacuum pump first draws vacuum at a constant vacuum rate of K (25L / S). When the vacuum degree D (-0.088Mpa) is reached, the cleaning liquid begins to boil and forms a flushing of the contaminated equipment. The maintenance time is E (15 seconds). After the maintenance time is over, the variable frequency vacuum pump quickly draws vacuum at a steep vacuum rate of L (35L / S). Due to the steep change in vacuum degree, the cleaning liquid suddenly accelerates to boil, the flushing force suddenly increases, and the contaminated equipment is quickly peeled off. The attached pollutants on the instrument (the negative pressure aspirator for artificial abortion is based on this principle) are maintained for the set time F (20 seconds), and then combined with the bubble generator M at the bottom of the equipment to form a bombardment-style boiling bubble V, which further strengthens the flushing force and disturbs the cleaning liquid. When the pressure in the cleaning chamber reaches G (-0.05Mpa), the vacuum breaking X is executed to form an impact flushing of the pollutants inside and outside the lumen to make them fall off. When it reaches H (-0.02Mpa), the a stroke is repeated, and the pulsating vacuum cleaning is repeated over and over again until the time is up.

[0021] Step 3: Rinse: When the set temperature is lower than 45°, execute step 1. When the set temperature reaches 45° or above, execute step a and rinse in a pulsating vacuum manner until the rinse time is over.

[0022] The main cleaning time after adding detergent is 7 minutes. Multiple cleaning tests using the medical industry standard STF cleaning test card demonstrated a 100% pass rate, outperforming other vacuum cleaners. This significantly shortens the entire cleaning process and improves product efficiency. The dense flushing bubbles formed during the cleaning process are similar to ultrasonic cleaning, but at a lower frequency, causing negligible damage to precision instruments. Compared to the dense air bubbles formed by traditional ultrasonic cleaning at a frequency of 28-40 kHz / s, the impact force is significantly reduced, making it particularly suitable for cleaning precision instruments such as ophthalmic surgical instruments and surgical scissors, extending the life of the instruments and reducing costs.

Claims

1. A variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine, characterized in that: The steps are as follows: Step 1, flushing stage: set the cleaning temperature to below 45°, and the variable frequency vacuum pump outputs a vacuum rate K = 20L / S ~ 30L / S at a constant frequency of 40Hz ~ 50Hz to evacuate. When the pressure in the cleaning chamber reaches the set value A = -0.070Mpa ~ -0.08Mpa, the vacuum pump outputs a vacuum rate L = 30L / S ~ 64L / S at a steep frequency of 55Hz ~ 60Hz to quickly evacuate. When the set vacuum degree B = -0.088Mpa ~ -0.09Mpa is reached, the valve is automatically controlled to operate. Combined with the bubble generator at the bottom of the chamber, dense boiling bubbles are formed to quickly flush the contaminated equipment. When the pressure in the chamber returns to C = -0.05Mpa ~ -0.02Mpa, the variable frequency vacuum pump again evacuates at the constant vacuum rate K and controls the automatic valve at the same time. Repeat the above steps to flush in a pulsating vacuum manner until the flushing time ends. Step 2, add detergent for main cleaning: set the cleaning temperature at 45°~50° to ensure the activity of the detergent; execute step 1 when the water temperature is below 45°, and execute step a when the water temperature reaches 45° and above: the variable frequency vacuum pump first evacuates at a constant vacuum rate of K=20L / S~30L / S, and when the vacuum degree D=-0.088~-0.09Mpa is reached, the cleaning liquid begins to boil and forms a flushing of the contaminated equipment, and the maintenance time E=10-20 seconds. After the maintenance time ends, the variable frequency vacuum pump quickly evacuates at a steep vacuum rate of L=30L / S~64L / S, and the vacuum is The sudden change in air volume causes the cleaning liquid to boil and flush suddenly, quickly stripping off the contaminants attached to the instrument. After maintaining the set time F = 10-40 seconds, the bubble generator at the bottom of the equipment is combined to form a bombardment of boiling bubbles, further strengthening the flushing force and disturbing the cleaning liquid. When the pressure in the cleaning chamber reaches G = -0.06Mpa ~ -0.04Mpa, the vacuum is broken, forming an impact flushing on the contaminants inside and outside the lumen, causing them to fall off. When it reaches H = -0.04Mpa ~ -0.01Mpa, the a step is repeated, and the pulsating vacuum cleaning is repeated over and over again until the time is up. Step 3, rinsing: When the set temperature is lower than 45°, perform the rinse program in step 1. When the set temperature reaches 45° or above, perform the rinse program in step 2 a, using a pulsating vacuum rinse until the rinse time is over.

2. The variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine according to claim 1, characterized in that: During the flushing phase of step 1: the cleaning temperature is set to be lower than 45°, and the variable frequency vacuum pump outputs a vacuum rate of K=25L / S at a constant frequency of 45Hz to evacuate. When the pressure in the cleaning chamber reaches the set value A=-0.075Mpa, the vacuum pump outputs a vacuum rate of L=38L / S at a steep frequency of 60Hz to quickly evacuate. When the set vacuum degree B=-0.089Mpa is reached, the valve is automatically controlled to move. Combined with the bubble generator at the bottom of the chamber, dense boiling bubbles are formed to quickly flush the contaminated equipment. When the pressure in the chamber returns to C=-0.03Mpa, the variable frequency vacuum pump again evacuates at a constant vacuum rate of K and controls the automatic valve at the same time. The above steps are repeated for pulsating vacuum flushing until the flushing time is over.

3. The variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine according to claim 1, characterized in that: Step 2: Add detergent for main cleaning: the cleaning temperature is set at 50° to ensure the activity of the detergent; when the water temperature is lower than 45°, execute step 1. When the water temperature reaches 45° or above, execute step a: the variable frequency vacuum pump first evacuates at a constant vacuum rate of K=25L / S. When the vacuum degree D=-0.088Mpa is reached, the cleaning liquid begins to boil and flushes the contaminated equipment. The maintenance time is E=15 seconds. After the maintenance time is over, the variable frequency vacuum pump quickly evacuates at a steep vacuum rate of L=38L / S. The vacuum degree The sudden change of causes the cleaning fluid to suddenly accelerate the boiling and flushing, quickly stripping off the attached pollutants on the instrument. After maintaining the set time F = 25 seconds, combined with the bubble generator at the bottom of the equipment, bombardment-style boiling bubbles are formed, which further strengthen the flushing force and disturb the cleaning fluid. When the pressure in the cleaning chamber reaches G = -0.05Mpa, the vacuum is broken, forming an impact flushing of the pollutants inside and outside the lumen, causing them to fall off. When it reaches H = -0.025Mpa, the a stroke is repeated, and the pulsating vacuum cleaning is repeated over and over again until the time is up.

4. The variable frequency vacuum sudden boiling cleaning method for a pulsating vacuum cleaning and disinfecting machine according to claim 1 or 2, characterized in that: The main cleaning time of this method with adding detergent is 6 to 8 minutes.

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