CN110280542B - Efficient cleaning method for lumen surgical instruments - Google Patents
Efficient cleaning method for lumen surgical instruments Download PDFInfo
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- CN110280542B CN110280542B CN201910695146.5A CN201910695146A CN110280542B CN 110280542 B CN110280542 B CN 110280542B CN 201910695146 A CN201910695146 A CN 201910695146A CN 110280542 B CN110280542 B CN 110280542B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/70—Cleaning devices specially adapted for surgical instruments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/70—Cleaning devices specially adapted for surgical instruments
- A61B2090/701—Cleaning devices specially adapted for surgical instruments for flexible tubular instruments, e.g. endoscopes
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Abstract
The invention relates to the technical field of cleaning methods of medical instruments, and particularly discloses a high-efficiency cleaning method of a lumen surgical instrument, which comprises four stages of prewashing, enzyme washing, multiple rinsing and dewatering, wherein the prewashing stage comprises the following steps: s1, putting the lumen surgical instrument to be cleaned into a cleaning tank; s2, exhausting air, forming negative pressure in the cleaning tank, and injecting cleaning solution; s3, liquid-phase gas inlet; s4, exhausting, forming negative pressure in the cleaning tank, and introducing gas in a gas phase; s5, pumping air to form negative pressure in the cleaning tank and uniformly intake liquid phase; s6, repeating the step S4 and the step S5; s7, draining; the enzyme washing and rinsing stages are both carried out by steps S2-S7. In the invention, the steps S2 and S3 form a plurality of air sections and cleaning liquid sections in the inner part of the lumen surgical instrument, the air sections are expanded by air suction, the air sections are instantly compressed by gas phase air inlet, and the outside cleaning liquid instantly enters the inner part of the lumen surgical instrument, so that the inner surface of the lumen surgical instrument is efficiently cleaned.
Description
Technical Field
The invention relates to the technical field of cleaning methods of medical instruments, and particularly discloses a high-efficiency cleaning method of a lumen surgical instrument.
Background
With the rapid development of minimally invasive surgery, the utilization rate of lumen surgical instruments is rapidly increased, and meanwhile, the requirements on cleaning and disinfection of the lumen surgical instruments reach a certain height, so that postoperative infection is avoided. However, the challenge is: the inner pipeline of the lumen surgical instrument is slender, the inner structure of part of the lumen surgical instrument is of a special-shaped structure and is complex, and the cleaning liquid is difficult to enter the inner surface of the lumen surgical instrument for cleaning.
At present, cleaning modes of lumen surgical instruments mainly comprise: manual cleaning, a spray cleaning machine with a special pipe cavity frame, reduced pressure boiling cleaning and the like. Wherein, the manual cleaning mode is only suitable for lumen surgical instruments with smooth inner surfaces, no foreign objects and no blind ends, and the manual cleaning is difficult to ensure the cleaning quality. Although the spraying cleaning machine avoids manual cleaning, the tube cavity surgical instrument needs to be manually inserted into a special tube cavity frame, and the workload is high. The reduced-pressure boiling cleaning mainly utilizes the boiling phenomenon of the cleaning liquid to wash and clean the outer surface of the lumen surgical instrument, but the cleaning liquid is difficult to enter the internal structure of the lumen surgical instrument, so that the cleaning effect on the inner surface of the lumen surgical instrument is limited, and the inner surface of the lumen surgical instrument is difficult to effectively clean.
Disclosure of Invention
The invention aims to provide a method for efficiently cleaning a lumen surgical instrument, so as to solve the problem of poor cleaning effect of the inner surface of the lumen surgical instrument.
In order to achieve the purpose, the basic scheme of the invention is as follows: the high-efficiency cleaning method of the lumen surgical instruments comprises four stages of prewashing, enzyme washing, multiple rinsing and dewatering; the pre-wash stage comprises the steps of:
s1, putting the lumen surgical instrument to be cleaned into a cleaning tank;
s2, extracting air in the cleaning tank, reducing the internal pressure of the cleaning tank and injecting cleaning solution;
s3, after the cleaning solution is injected, liquid-phase air inflow is carried out, and the internal pressure of the cleaning tank is recovered;
s4, extracting air in the cleaning tank, reducing the internal pressure of the cleaning tank, and then carrying out gas-phase air intake, wherein the pressure in the cleaning tank reaches normal pressure once;
s5, extracting air in the cleaning tank, reducing the internal pressure of the cleaning tank, and then performing liquid-phase air intake, wherein the pressure in the cleaning tank reaches normal pressure once;
s6, repeating the steps S4 and S5 for a plurality of times;
s7, opening a drain valve to discharge the cleaning solution;
a plurality of liquid-phase air inlet pipes are uniformly distributed at the bottom of the cleaning tank, and a plurality of liquid-phase air inlets are formed in each liquid-phase air inlet pipe along the length of the liquid-phase air inlet pipe;
and the enzyme washing stage and the rinsing stage are cleaned by adopting steps S2-S7, and in the enzyme washing stage, the cleaning solution is injected and the enzyme solution is injected at the same time.
In the basic scheme, liquid-phase air intake refers to air intake below the liquid level of the cleaning liquid, and gas-phase air intake refers to air intake above the liquid level of the cleaning liquid.
The working principle and the beneficial effects of the basic scheme are as follows:
in step S2, the air in the cleaning tank is evacuated to reduce the internal pressure of the cleaning tank, and at this time, the air in the inside of the lumen-type surgical instrument in the cleaning tank is also suctioned out, so that more cleaning liquid can enter the inside of the lumen-type surgical instrument thereafter.
In the step S3, after the cleaning liquid is injected into the cleaning tank in the negative pressure environment, liquid-phase air inflow is carried out, in the process, the air entering the cleaning tank can stir the cleaning liquid, and liquid-phase air inlets in the liquid-phase air inlet pipe are uniformly distributed, so that the air can uniformly emerge from the bottom of the cleaning tank, the outer surface of the lumen surgical instrument is cleaned, and the outer surface of the lumen surgical instrument is uniformly cleaned. More importantly, the internal pressure inside the lumen surgical instrument is smaller than that outside, so that external cleaning liquid and air are squeezed into the lumen surgical instrument, a plurality of air sections and cleaning liquid sections which are distributed at intervals are formed inside the lumen surgical instrument, and in the process that the cleaning liquid and the air are squeezed into the lumen surgical instrument, the air and the cleaning liquid are both in contact with and wash the inner surface of the lumen surgical instrument, so that the inner surface cleaning to a certain degree is realized. After the liquid phase is aerated, the internal pressure of the cleaning tank is restored to normal pressure at one time.
In step S4, the cleaning tank is evacuated to reduce the internal pressure of the cleaning tank, and in this process, the air section inside the lumen-like surgical instrument is gradually expanded, so that the cleaning liquid section is pushed out to again wash the inner surface of the lumen-like surgical instrument. And after the internal pressure of the cleaning tank is reduced to a certain value, gas phase air intake is carried out, so that the internal pressure of the cleaning tank is instantly recovered to normal pressure at one time, the cleaning liquid is instantly squeezed into the inner part of the lumen surgical instrument, the cleaning liquid quickly washes the inner surface of the lumen surgical instrument, the inner surface of the lumen surgical instrument is effectively cleaned, and the compressed volume of the air section in the lumen surgical instrument is reduced in the process.
In step S5, the cleaning tank is evacuated to reduce the internal pressure of the cleaning tank, and in this process, the air section inside the lumen-like surgical instrument gradually expands to push out the cleaning solution, and the inner surface of the lumen-like surgical instrument is washed away again. And after the internal pressure of the cleaning tank is reduced to a certain value, liquid-phase air intake is carried out immediately, so that the internal pressure of the cleaning tank is recovered to normal pressure once. In the process, the liquid phase is air-in to enable the cleaning liquid to contain a large amount of air, and the internal pressure inside the lumen surgical instrument is smaller than the external pressure, therefore, the external cleaning liquid and the air are squeezed into the lumen surgical instrument, a plurality of air sections and cleaning liquid sections which are distributed at intervals are formed inside the lumen surgical instrument, and in the process that the cleaning liquid and the air are squeezed into the lumen surgical instrument, the air and the cleaning liquid are in contact with and wash away the inner surface of the lumen surgical instrument, and the inner surface cleaning of a certain degree is achieved. In addition, in the liquid-phase air inlet process, most of air has the effect of stirring the cleaning liquid, so that the outer surface of the lumen surgical instrument is cleaned.
In step S6, repeating steps S4 and S5 for a plurality of times, and expanding and compressing the air section inside the tubular cavity surgical instrument under different pressure environments to enable the cleaning solution to enter and exit the tubular cavity surgical instrument, so that the air and the cleaning solution intermittently act on the inner surface of the tubular cavity surgical instrument, thereby effectively cleaning the inner surface and achieving a good cleaning effect. In addition, the outer surface of the lumen surgical instrument is cleaned by liquid-phase air inlet, and meanwhile, an air section and a cleaning liquid section in the lumen surgical instrument are formed.
In step S7, the drain valve is opened to drain the cleaning liquid, so that the next cleaning stage is performed.
In the field, a reduced pressure boiling method is generally used for cleaning the lumen surgical instrument, the boiling point of the cleaning liquid is reduced under a negative pressure state, so that the cleaning liquid can be boiled at a lower temperature, and the lumen surgical instrument is cleaned by using shock waves generated during boiling. Compared with the decompression boiling cleaning method in the prior art, the basic scheme does not adopt a negative pressure boiling cleaning mode, but utilizes the expansion and compression of the air section in the lumen surgical instrument to enable the cleaning liquid to be squeezed into the lumen surgical instrument so as to clean the inner surface of the lumen surgical instrument, and the cleaning effect is good.
Optionally, a swing disc is rotatably mounted in the cleaning tank, a fence net is arranged around the swing disc, and the bottom wall of the swing disc is of a net structure.
The swing disc can rotate in the cleaning tank, so that the tube cavity type surgical instruments in the swing disc can rotate, the air section in the tube cavity type surgical instruments can move, the cleaning liquid can wash all inner surfaces of the tube cavity type surgical instruments, and the cleaning effect is improved.
Optionally, at least two liquid-phase intake pipes among the plurality of liquid-phase intake pipes are selected as special liquid-phase intake pipes, the special liquid-phase intake pipes are respectively located at two ends of the swing disc, and when liquid-phase intake is performed in step S5, the special liquid-phase intake pipes located at two sides of the swing disc alternately intake air.
Because the special liquid phase air inlet pipes at the two ends of the swing disc alternately supply air, in the liquid phase air inlet process, the two ends of the swing disc are subjected to different air impact forces, so that the swing of the swing disc is realized, the swing of the lumen surgical instruments in the swing disc is realized, the air section in the lumen surgical instruments is moved, and the cleaning effect on the inner surface of the lumen surgical instruments is improved.
Optionally, the top of washing tank rotates and is connected with the runner, rotates on the runner and is connected with the cylinder, and the cylinder sets up with the runner is perpendicular, cylinder fixedly connected with stay cord, and the cylindrical one end is kept away from to the stay cord is connected with the one end that the swing dish is close to the runner, and the one end fixedly connected with counterweight that the swing dish is close to the runner.
Rotate the runner, then the cylinder of rotation connection on the runner begins circular motion, it removes to drive the stay cord, when the cylinder rotates the top to the runner, the pull force is exerted to the tip of swinging disk to the stay cord, make the swinging disk be close to the one end perk of runner, when the cylinder rotated the top of runner, the stay cord moves down, the one end that the swinging disk is close to the runner rotates down under the action of gravity of counterweight, therefore, along with the rotation of runner, the swing of swinging disk has been realized, thereby realize the removal of lumen class surgical instruments, make the inside air section of lumen class surgical instruments remove, the cleaning performance to lumen class surgical instruments internal surface improves.
Alternatively, in the step S4 and the step S5, the air is introduced immediately when the internal pressure of the cleaning tank is reduced to the saturated vapor pressure of water.
This scheme does not adopt the boiling formula to wash, admits air immediately when the internal pressure of washing tank reduces to the saturated vapor pressure of water, saves the boiling time, shortens the scavenging period, improves the cleaning efficiency.
Optionally, in the dehydration stage, the air in the cleaning tank is pumped out, and the internal pressure of the cleaning tank is reduced until the internal pressure of the cleaning tank is less than the saturated vapor pressure of water.
In the process that the internal pressure of the cleaning tank is reduced to the saturated vapor pressure of water, the cleaning liquid in the lumen surgical instrument is pushed out by the expanded air section, and the residual cleaning liquid in the cleaning tank is volatilized to leave the cleaning tank, so that dehydration is realized.
Alternatively, in step S3, liquid-phase air intake is performed immediately after the cleaning liquid is completely injected.
Time is saved, and cleaning efficiency is improved.
Optionally, in the step S2, the cleaning solution is injected after the internal pressure of the cleaning tank is reduced to 35 to 70 KPa.
When the internal pressure of the cleaning tank is reduced to 35-70KPa, the air in the tubular cavity surgical instrument in the cleaning tank can be pumped away, so that more cleaning liquid can enter the tubular cavity surgical instrument in the process of recovering the internal pressure of the cleaning tank to normal pressure, and the cleaning effect on the inner surface of the tubular cavity surgical instrument is better.
Optionally, in the step S3, after the cleaning solution is injected, the internal pressure of the cleaning tank is 5 to 20 KPa.
After the cleaning liquid is injected, the smaller the internal pressure of the cleaning tank is, when the liquid phase is aerated, the easier the air enters the inside of the lumen surgical instrument, the easier the air section and the cleaning liquid section are formed in the inside of the lumen surgical instrument, and the better the cleaning effect on the inner surface of the lumen surgical instrument is.
Optionally, the bottom parts of the two ends of the swinging disc are fixedly connected with bearing plates, and the bearing plates are located above the special liquid phase air inlet pipe.
The bearing plate can increase the area of the air acting on the swinging disc and ensure that the swinging disc swings under the action of the air impact force.
Drawings
FIG. 1 is a schematic diagram illustrating a cleaning process in an embodiment of the method for efficiently cleaning a surgical instrument such as a lumen;
FIG. 2 is a cleaning map in an embodiment of the efficient cleaning method for the lumen surgical instruments according to the invention;
FIG. 3 is a distribution diagram of a liquid-phase air inlet tube in a second embodiment of the method for efficiently cleaning a lumen-type surgical instrument according to the present invention;
fig. 4 is a schematic structural diagram of a swing mechanism in a third embodiment of the efficient cleaning method for the lumen surgical instrument.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: washing tank 1, swinging tray 2, support frame 3, commentaries on classics roller 4, liquid phase intake pipe 5, special liquid phase intake pipe 6, accept board 7, runner 8, cylinder 9, stay cord 10, balancing weight 11.
Example one
The efficient cleaning method for the lumen surgical instrument in the embodiment needs to use the following equipment for cleaning, and the efficient cleaning method comprises a cleaning tank and a vacuum pump, wherein a liquid level detector, a temperature sensor, a pressure sensor, a controller and a heating mechanism are installed in the cleaning tank, and the heating mechanism is controlled by the controller. The liquid level detector is used for detecting the height of the liquid level in the cleaning tank, the temperature sensor detects the temperature of the cleaning liquid and transmits a signal to the controller, the controller controls the heating mechanism to work according to the received signal, and the pressure sensor is used for detecting the internal pressure of the cleaning tank and transmitting the signal to the controller. It is common knowledge of those skilled in the art to select the appropriate model and properly connect the various devices in order to accomplish the above. In the embodiment, the model of the liquid level detector is CCY15, the model of the temperature sensor is WZP-291, the model of the pressure sensor is KAP10, and the model of the controller is 6ES7216-2AD23-OXB 8.
The vacuum pump is connected with an exhaust pipe, one end of the exhaust pipe, which is far away from the vacuum pump, is communicated with the cleaning tank, an electromagnetic valve is installed on the exhaust pipe and is controlled by a pressure controller, in the embodiment, the model of the electromagnetic valve is 2WB-20, and the controller controls the electromagnetic valve to work according to the received signal. The bottom of the cleaning tank is provided with a drain pipe and a plurality of liquid-phase air inlet pipes, the drain pipe is provided with a drain valve, each liquid-phase air inlet pipe is provided with a plurality of liquid-phase air inlet holes along the length of the liquid-phase air inlet pipe, all the liquid-phase air inlet holes are arranged in a matrix manner, the distance between every two adjacent liquid-phase air inlet pipes is 70mm, and the liquid-phase air inlet pipes are provided with liquid; the top of the cleaning tank is provided with a gas phase inlet pipe, an enzyme liquid pipe and a liquid inlet pipe, the gas phase inlet pipe is provided with a gas phase inlet valve, the enzyme liquid pipe is provided with an enzyme liquid valve, and the liquid inlet pipe is provided with a liquid inlet valve.
The method for efficiently cleaning the lumen surgical instrument in the embodiment comprises four stages of prewashing, enzyme washing, three-time rinsing and dewatering as shown in fig. 1; the prewashing stage comprises the following steps:
s1, placing the lumen surgical instrument to be cleaned into a cleaning tank.
S2, opening the electromagnetic valve on the air exhaust pipe, starting the vacuum pump, exhausting the air in the cleaning tank by using the vacuum pump, and reducing the internal pressure of the cleaning tank to 35-70KPa, wherein in the embodiment, the internal pressure of the cleaning tank is reduced to 60 KPa. During the process of air exhaust by the vacuum pump, air in the inner part of the lumen-like surgical instrument is also sucked out, namely, the inner pressure of the lumen-like surgical instrument is kept consistent with the inner pressure of the cleaning groove. And then closing the electromagnetic valve, opening a liquid inlet valve on the liquid inlet pipe, and injecting cleaning liquid into the cleaning tank, so that the cleaning liquid overflows the tube cavity surgical instruments until the liquid level detector detects that the water level meets a set value, and then stopping injecting the cleaning liquid. In this embodiment, the set value is 300 mm.
S3, after the cleaning solution is injected, the heating mechanism is turned on, and the cleaning solution is heated by the heating mechanism, so that the temperature of the cleaning solution reaches 35 to 45 ℃, in this embodiment, the temperature of the cleaning solution is maintained at 40 ℃. In the process of injecting the cleaning solution, the vacuum pump is used to pump the cleaning tank, so that the internal pressure of the cleaning tank is reduced to 5-20KPa, in this embodiment, the electromagnetic valve is closed after the internal pressure of the cleaning tank is reduced to 11 KPa. Then, a liquid phase air inlet valve on the liquid phase air inlet pipe is opened to carry out liquid phase air inlet, and the internal pressure of the cleaning tank is restored to the normal pressure. At the in-process that the liquid phase was admitted air, the washing liquid can be stirred to the gas that gets into in the washing tank, and the liquid phase inlet port evenly distributed in the liquid phase intake pipe for the air can emerge from the washing tank bottom uniformly, washs lumen class surgical instruments's surface with this, ensures the even washing to lumen class surgical instruments's surface. More importantly, the internal pressure inside the lumen surgical instrument is smaller than that outside, so that external cleaning liquid and air can be squeezed into the lumen surgical instrument, a plurality of air sections and cleaning liquid sections which are distributed at intervals are formed inside the lumen surgical instrument, and in the process that the cleaning liquid and the air are squeezed into the lumen surgical instrument, the air and the cleaning liquid are both in contact with and wash the inner surface of the lumen surgical instrument, so that the inner surface cleaning to a certain degree is realized. And closing the liquid phase air inlet valve after the internal pressure of the cleaning tank is restored to the normal pressure.
And S4, opening the electromagnetic valve, starting the vacuum pump, pumping out the air in the cleaning tank by the vacuum pump so that the internal pressure of the cleaning tank is reduced to 7.3KPa (saturated vapor pressure of water at 40 ℃), and then closing the electromagnetic valve and the vacuum pump. In the air suction process, the air section inside the lumen surgical instrument is gradually expanded, so that the cleaning liquid section is pushed out to wash the inner surface of the lumen surgical instrument again. And after the internal pressure of the cleaning tank is reduced to 7.3KPa, immediately opening a gas phase air inlet valve on a gas phase air inlet pipe so as to immediately perform gas phase air inlet, so that the internal pressure of the cleaning tank is instantly restored to normal pressure at one time, and the cleaning liquid is instantly squeezed into the inside of the lumen surgical instrument, and quickly washes the inner surface of the lumen surgical instrument to effectively clean the inner surface of the lumen surgical instrument, and the compressed volume of an air section in the lumen surgical instrument is reduced in the process. After the internal pressure of the cleaning tank is once restored to the normal pressure, the gas phase inlet valve is closed.
And S5, opening the electromagnetic valve, starting the vacuum pump, exhausting the cleaning tank to reduce the internal pressure of the cleaning tank to 7.3KPa (saturated vapor pressure of water at 40 ℃), and then closing the electromagnetic valve and the vacuum pump. In the air exhaust process, the air section in the lumen surgical instrument is gradually expanded to push out the cleaning fluid, and the inner surface of the lumen surgical instrument is washed again. And after the internal pressure of the cleaning tank is reduced to 7.3KPa, immediately opening a liquid phase air inlet valve on a liquid phase air inlet pipe so as to immediately perform liquid phase air inlet, so that the internal pressure of the cleaning tank is once restored to the normal pressure. In the process, the liquid phase is air-in to enable the cleaning liquid to contain a large amount of air, and the internal pressure inside the lumen surgical instrument is smaller than the external pressure, therefore, the external cleaning liquid and the air are squeezed into the lumen surgical instrument, a plurality of air sections and cleaning liquid sections which are distributed at intervals are formed inside the lumen surgical instrument, and in the process that the cleaning liquid and the air are squeezed into the lumen surgical instrument, the air and the cleaning liquid are in contact with and wash away the inner surface of the lumen surgical instrument, and the inner surface cleaning of a certain degree is achieved. In addition, in the liquid-phase air inlet process, most of air has the effect of stirring the cleaning liquid, so that the outer surface of the lumen surgical instrument is cleaned.
S6, repeating the steps S4 and S5 four times, and performing the step S4 again, as shown in FIG. 2.
And S7, opening a drain valve on the drain pipe to discharge the cleaning liquid.
The enzymatic washing stage comprises the above steps S2-S7, with the difference that: in step S2, in the process of injecting the cleaning solution into the cleaning tank, the enzyme solution valve on the enzyme solution pipe is opened to inject the enzyme solution into the cleaning tank, thereby performing enzyme cleaning.
The tertiary rinsing stage includes the above-described steps S2-S7.
In the dehydration stage, the electromagnetic valve is opened, the vacuum pump is started, and the cleaning tank is pumped so that the internal pressure of the cleaning tank is smaller than the saturated vapor pressure of water. In the process of the reduction of the internal pressure of the cleaning tank, the cleaning liquid in the tubular cavity surgical instrument is pushed out by the expanded air section, and the residual cleaning liquid in the cleaning tank is volatilized to leave the cleaning tank, so that the dehydration is realized.
The cleaning method of the embodiment is particularly suitable for small-diameter and long-sized lumen surgical instruments, and can effectively clean the inner surfaces and the outer surfaces of the lumen surgical instruments.
Example two
The difference between the present embodiment and the first embodiment is: as shown in fig. 3, a swing tray 2 is arranged in the cleaning tank 1, a fence is arranged around the swing tray 2, and the bottom wall of the swing tray 2 is of a net structure. The bottom fixedly connected with support frame 3 of washing tank 1, the top of support frame 3 is rotated and is connected with changes roller 4, changes roller 4 and swing dish 2 fixed connection, and changes roller 4 and be located the central line of swing dish 2. In the plurality of liquid phase air inlet pipes 5, six liquid phase air inlet pipes 5 are selected as special liquid phase air inlet pipes 6, the six special liquid phase air inlet pipes 6 are divided into two groups, each group is three, the two groups are respectively positioned at two ends of the swinging disc 2, and the special liquid phase air inlet pipe 6 at the left end of the swinging disc 2 and the special liquid phase air inlet pipe 6 at the right end of the swinging disc 2 alternately admit air. The bottom parts of the two ends of the swinging disc 2 are fixedly connected with bearing plates 7, and the bearing plates 7 are positioned above the special liquid phase air inlet pipe 6.
In steps S4 and S5, although the air section inside the lumen-like surgical instrument expands and contracts, the position of the air section after each contraction does not change, and therefore, a cleaning dead space exists, and the inner surface inside the air section is not easily cleaned. In this embodiment, the special liquid-phase air inlet pipe 6 at the left end of the swing disc 2 and the special directional air inlet pipe at the right end of the swing disc 2 are used for alternately introducing air, so that the air impact force applied to one end of the swing disc 2 at the same time is greater than the air impact force applied to the other end of the swing disc 2, that is, the swing disc 2 is in an unbalanced stress state in the liquid-phase air inlet process, the swing disc 2 can swing in a small amplitude (the top end of the support frame 3 is rotatably connected with the rotating roller 4, and the top end of the support frame 3 can limit the swing amplitude of the swing disc 2), so that the tube cavity surgical instrument placed in the swing disc 2 swings, and the air section inside the tube cavity surgical instrument moves, so that the cleaning liquid can comprehensively contact the inner surface of the tube cavity surgical instrument, thereby removing the.
EXAMPLE III
The difference between the present embodiment and the first embodiment is: as shown in fig. 4, a swing mechanism is arranged in the cleaning tank 1, the swing mechanism comprises a support frame 3, a rotating roller 4, a swing disc 2, a rotating wheel 8 and a motor, and the swing disc 2 is used for placing the lumen surgical instruments. Support frame 3 fixed mounting is in the diapire of washing tank 1, changes the top of roller 4 and support frame 3 and rotates and be connected, changes roller 4 and swing dish 2 fixed connection, and changes roller 4 and be located swing dish 2 central line. The rotating wheel 8 is rotationally connected to the side wall of the cleaning tank 1, the rotating wheel 8 is driven by a motor, and the motor is arranged outside the cleaning tank 1; the last rotation of runner 8 is connected with cylinder 9, and cylinder 9 sets up with runner 8 is perpendicular, and the stay cord 10 has been bound on cylinder 9, and the one end that cylinder 9 was kept away from to stay cord 10 links to each other with the right-hand member of swinging disk 2, and the right-hand member fixedly connected with counterweight of swinging disk 2 for the focus of swinging disk 2 is located the right side.
In steps S4 and S5, although the air section inside the lumen-like surgical instrument expands and contracts, the position of the air section after each contraction does not change, and therefore, a cleaning dead space exists, and the inner surface inside the air section is not easily cleaned. In this embodiment, when step S4 and step S5 are performed, the motor is started, the motor drives the rotating wheel 8 to rotate slowly, and the rotating speed of the rotating wheel 8 is 2 r/m. Then, the cylinder 9 on the rotating wheel 8 starts to perform circular motion to drive the pull rope 10 to move, and when the cylinder 9 rotates to the top end of the rotating wheel 8, the pull rope 10 pulls the right end of the swinging disc 2, so that the right end of the swinging disc 2 tilts upwards, and the tilting height is 15 mm; when the cylinder 9 has rotated past the top end of the pulley 8, the top end of the pull cord 10 moves downward, and the right end of the wobble plate 2 moves downward by the weight. Therefore, along with the rotation of the rotating wheel 8, the swinging disc 2 swings in a small amplitude, so that the tube cavity surgical instruments on the swinging disc 2 swing, the air section in the tube cavity surgical instruments can move, the cleaning liquid can fully clean the inner surfaces of the tube cavity surgical instruments, and the cleaning effect is improved.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (6)
1. The high-efficiency cleaning method of the lumen surgical instruments comprises four stages of prewashing, enzyme washing, multiple rinsing and dewatering; the pre-wash stage comprises the steps of: s1, putting the lumen surgical instrument to be cleaned into a cleaning tank; the method is characterized in that:
s2, extracting air in the cleaning tank, reducing the internal pressure of the cleaning tank and injecting cleaning solution;
s3, after the cleaning solution is injected, liquid-phase air inflow is carried out, and the internal pressure of the cleaning tank is recovered;
s4, extracting air in the cleaning tank, reducing the internal pressure of the cleaning tank, and then carrying out gas-phase air intake, wherein the pressure in the cleaning tank reaches normal pressure once;
s5, extracting air in the cleaning tank, reducing the internal pressure of the cleaning tank, and then performing liquid-phase air intake, wherein the pressure in the cleaning tank reaches normal pressure once;
s6, repeating the steps S4 and S5 for a plurality of times;
s7, opening a drain valve to discharge the cleaning solution;
a plurality of liquid-phase air inlet pipes are uniformly distributed at the bottom of the cleaning tank, and a plurality of liquid-phase air inlets are formed in each liquid-phase air inlet pipe along the length of the liquid-phase air inlet pipe; selecting at least two liquid-phase air inlet pipes as special liquid-phase air inlet pipes from the plurality of liquid-phase air inlet pipes, wherein the special liquid-phase air inlet pipes are respectively positioned at two ends of the swinging disc, and alternately introducing air into the special liquid-phase air inlet pipes positioned at two sides of the swinging disc when liquid-phase air introduction is performed in step S5; the cleaning tank is internally provided with a special liquid phase air inlet pipe, a special liquid phase air inlet pipe is arranged at the bottom of the cleaning tank, a swinging disc is rotatably arranged in the cleaning tank, fence nets are arranged around the swinging disc, the bottom wall of the swinging disc is of a net structure, and bearing plates are fixedly connected to the bottoms of two ends of the swinging disc and positioned above the special liquid phase air inlet pipe;
and the enzyme washing stage and the rinsing stage are cleaned by adopting steps S2-S7, and in the enzyme washing stage, the cleaning solution is injected and the enzyme solution is injected at the same time.
2. The efficient cleaning method for the lumen surgical instrument according to claim 1, characterized in that: in the steps S4 and S5, the air is introduced immediately when the internal pressure of the cleaning tank is reduced to the saturated vapor pressure of water.
3. The efficient cleaning method for the lumen surgical instrument according to claim 1, characterized in that: in the dehydration stage, air in the cleaning tank is pumped out, and the internal pressure of the cleaning tank is reduced until the internal pressure of the cleaning tank is less than the saturated vapor pressure of water.
4. The efficient cleaning method for the lumen surgical instrument according to claim 1, characterized in that: in step S3, liquid-phase air intake is performed immediately after the cleaning liquid is completely injected.
5. The efficient cleaning method for the lumen surgical instrument according to claim 1, characterized in that: in the step S2, the internal pressure of the cleaning tank is reduced to 35 to 70KPa, and then the cleaning solution is injected.
6. The efficient cleaning method for the lumen-like surgical instruments according to claim 5, characterized in that: in the step S3, after the cleaning solution is injected, the internal pressure of the cleaning tank is 5 to 20 KPa.
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Effective date of registration: 20230802 Address after: No.5-37, Yunhan Avenue, Shuitu hi tech Industrial Park, Beibei District, Chongqing 400700 Patentee after: Chongqing Youma Medical Technology Co.,Ltd. Address before: No.5-37, Yunhan Avenue, Shuitu hi tech Industrial Park, Beibei District, Chongqing 400700 Patentee before: CHONGQING YOMA HUANSHI MEDICAL EQUIPMENT Co.,Ltd. |