A pressure steam sterilization biological indicator resistance detection system capable of batch detection

Abstract

The present invention discloses a pressure steam sterilization biological indicator resistance detection system capable of batch detection, comprising a sterilization pipeline, an exhaust pipeline, a vacuum pipeline, a sterilization chamber, and a controller. The present invention is provided with at least two sterilization chambers, each of which is provided with an insulation layer and an inner cavity, an air intake pipeline is also provided between the insulation layer and the inner cavity, a first valve body is provided on the air intake pipeline, a first temperature sensor and a pressure gauge in the chamber are provided in the inner cavity, each sterilization chamber is connected in parallel with a sterilization pipeline, an exhaust pipeline, and a vacuum pipeline, and a second valve body connected to the corresponding pipeline is provided between each sterilization chamber and the corresponding pipeline, the controller connects the sterilization pipeline, the vacuum pipeline, the exhaust pipeline and the corresponding function actuators and the first temperature sensor, the first and second valve bodies of each sterilization chamber, and each sterilization chamber becomes an independent system. Compared with using a single sterilization chamber to sterilize more than two groups, the sterilization function of at least two multi-sterilization chambers will multiply the detection efficiency, and the more sterilization times required, the higher the improvement efficiency.

Description

Technical Field

[0001] The invention relates to a pressure steam sterilization biological indicator resistance detection system capable of batch detection. Background Art

[0002] The traditional pressure steam sterilization biological indicator resistance detection system sets the sterilization time, and the inspector takes out the biological indicator (hereinafter referred to as the sample) after the sterilization is completed. Usually, multiple time parameters need to be set for each detection task, and each parameter needs to be sterilized multiple times to ensure that the test results are accurate and reliable. In this case, the inspector is required to repeatedly operate the resistance detection system and repeat the tasks of sample delivery and sampling, and needs to wait during the sterilization period, resulting in a large waste of human resources and time. Summary of the invention

[0003] The present invention aims to solve the problems existing in the prior art and provides a pressure steam sterilization biological indicator resistance detection system capable of batch detection.

[0004] The technical solution of the present invention to solve the existing problems is: a pressure steam sterilization biological indicator resistance detection system that can be tested in batches, including a sterilization pipeline, an exhaust pipeline, a vacuum pipeline, a sterilization chamber, and a controller. As an improvement, the sterilization chamber is provided with at least two, each of which is provided with an insulation layer and an inner cavity, and an air intake pipeline is also provided between the insulation layer and the inner cavity. The air intake pipeline is provided with a first valve body, and the inner cavity is provided with a first temperature sensor and a pressure gauge in the chamber. Each of the sterilization chambers is connected to the sterilization pipeline, the exhaust pipeline, and the vacuum pipeline in parallel, and a second valve body connected to the corresponding pipeline is provided between each sterilization chamber and the corresponding pipeline. The controller is connected to the corresponding functional actuators of the sterilization pipeline, the vacuum pipeline, and the exhaust pipeline and the first temperature sensor, the first and second valve bodies of each sterilization chamber; the first and second valve bodies are solenoid valves or electric regulating valves.

[0005] As a further improvement, the vacuum extraction pipeline includes a vacuum pump and a first stop valve connected to the pipeline in sequence, and a second stop valve is provided on the exhaust pipeline; the intake pipeline is provided with two different first valve bodies with one large and one small intake volume, and the two different first valve bodies with one large and one small intake volume are respectively connected to the controller.

[0006] As a further improvement, the vacuum pumping pipeline and the exhaust pipeline are provided with a first common pipeline, the first common pipeline is connected to each sterilization chamber through a second valve body, the first common pipeline is provided with a first branch pipeline connected to the vacuum pump, and a second branch pipeline for venting, the first branch pipeline is provided with a first stop valve which together with the first common pipeline constitutes a vacuum pumping pipeline, the second branch pipeline is provided with a second stop valve which together with the first common pipeline constitutes an exhaust pipeline; the vacuum pump, the first and second stop valves are connected to the controller.

[0007] As a further improvement, a pressure transmitter is also provided on the connecting pipeline of the pressure gauge in each sterilization chamber, and the pressure transmitter is connected to the controller.

[0008] As a further improvement, it also includes an outer box body for installing various components, the sterilization chambers are arranged longitudinally and / or horizontally in sequence on the outer box body, and the pressure gauges in the chambers are arranged on the outer box body in a one-to-one correspondence with the corresponding sterilization chambers.

[0009] As a further improvement, it also includes a cooling pipeline and / or a first drainage pipeline, the cooling pipeline includes an air compressor connected to the cooling pipeline, and each sterilization chamber is connected to the cooling pipeline through a third valve body; a drain valve is provided on the first drainage pipeline, and the first drainage pipeline is connected to the air intake pipeline of each sterilization chamber; the air compressor, the third valve body, and the drain valve are connected to the controller.

[0010] As a further improvement, the sterilization pipeline is a steam pipeline, which includes a steam generator, an air source pressure gauge, and a second pressure transmitter which are sequentially connected to the steam connecting pipeline. A filter is also provided on the steam pipeline. The steam generator is connected to a second temperature sensor, a water inlet pipeline, and a second drainage pipeline; the steam generator and the second temperature sensor are connected to a controller.

[0011] As a further improvement, the steam generator is also connected to a first manual valve, the water inlet pipeline is sequentially provided with a diaphragm pump and a fourth valve body, the fourth valve body is a solenoid valve, and the steam pipeline is also provided with a first safety valve; the diaphragm pump and the fourth valve body are connected to the controller.

[0012] As a further improvement, it also includes a pressure balancing pipeline, which is connected to each sterilization chamber in sequence through a sixth valve body. A fifth valve body is provided on the pressure balancing pipeline. The fifth valve body and the sixth valve body are solenoid valves, and the fifth valve body and the sixth valve body are connected to a controller.

[0013] As a further improvement, the controller is a PLC or a single chip microcomputer.

[0014] Compared with the prior art, the present invention is provided with at least two sterilization chambers, each of which is provided with an insulation layer and an inner cavity, an air intake pipeline is provided between the insulation layer and the inner cavity, a first valve body is provided on the air intake pipeline, a first temperature sensor and a pressure gauge in the chamber are provided in the inner cavity, each sterilization chamber is connected in parallel with a sterilization pipeline, an exhaust pipeline and a vacuum pipeline, a second valve body connected to the corresponding pipeline is provided between each sterilization chamber and the corresponding pipeline, and a controller is connected to the corresponding function actuators of the sterilization pipeline, the vacuum pipeline and the exhaust pipeline and the first temperature sensor, the first and the second valve bodies of each sterilization chamber, and the beneficial effect is that each sterilization chamber becomes an independent system, and the sterilization function of at least two sterilization chambers will multiply the detection efficiency compared with using a single sterilization chamber to sterilize more than two groups, and the more sterilization times required, the higher the improvement efficiency. It greatly saves detection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the flow path of the system of the present invention.

[0016] Figure 2 It is a front view of the present invention.

[0017] Figure 3 It is a left side view of the present invention.

[0018] Figure 4 Rear view of the internal structure.

[0019] In order to facilitate Figure 1 It is clearly expressed in that the pressure balance pipeline, exhaust pipeline and vacuum pipeline are only drawn halfway and connected to the sterilization chamber on the corresponding side respectively. DETAILED DESCRIPTION

[0020] See also Figure 1-4 , this embodiment is a pressure steam sterilization biological indicator resistance detection system that can be tested in batches, including a sterilization pipeline, an exhaust pipeline 4, a vacuum pipeline 3, a sterilization chamber 1, and a controller. The sterilization chamber 1 is provided with at least two, each of which is provided with an insulation layer 11 and an inner cavity 12, and an air intake pipeline 13 is also provided between the insulation layer 11 and the inner cavity 12, and a first valve body 14 is provided on the air intake pipeline 13, and a first temperature sensor 15 and a pressure gauge 16 in the chamber are provided in the inner cavity 12. Each of the sterilization chambers 1 is connected to the sterilization pipeline, the exhaust pipeline 4, and the vacuum pipeline 3 in parallel, and a second valve body 5 connected to the corresponding pipeline is provided between each sterilization chamber 1 and the corresponding pipeline, that is, each sterilization chamber 1 is connected to the sterilization pipeline through a second valve body 5; each sterilization chamber 1 is connected to the exhaust pipeline 4 through a second valve body 5; each sterilization chamber 1 is connected to the vacuum pipeline 3 through a second valve body 5.

[0021] In the present embodiment, as a preferred embodiment, two different first valve bodies 14 with different air intake volumes, one large and one small, are provided on the air intake pipeline 13. The two different first valve bodies 14 with different air intake volumes, one large and one small, are respectively connected to the controller. The first valve body 14 with large air intake volume is controlled by the controller to control the air intake volume for rapid sterilization, and the first valve body 14 with small air intake volume is controlled to control the air intake for precise sterilization.

[0022] The controller is connected to the corresponding functional actuators of the sterilization pipeline, the vacuum pipeline 3, the exhaust pipeline 4, and the first temperature sensor 15, the first valve body 14, and the second valve body 5 of each sterilization chamber 1; the first valve body 14 and the second valve body 5 are solenoid valves or electric regulating valves. The corresponding functional actuator is the necessary actuator on the corresponding pipeline that can complete the function on the pipeline, such as the corresponding valve body on the exhaust pipeline 4, the corresponding valve body on the vacuum pipeline 4, and the vacuum pump.

[0023] The vacuum pipeline 3 comprises a vacuum pump 31 and a first stop valve 32 which are sequentially connected to the pipeline, and the exhaust pipeline 4 is provided with a second stop valve 41 .

[0024] The vacuum pipeline 3 and the exhaust pipeline 4 are provided with a first common pipeline 6, and the first common pipeline 6 is connected to each sterilization chamber 1 through a second valve body 5. The first common pipeline 6 is provided with a first branch pipeline 61 connected to the vacuum pump 31, and a second branch pipeline 62 for deflation. The first branch pipeline 61 is provided with a first stop valve 32, which together with the first common pipeline 6 constitutes the vacuum pipeline 3, and the second branch pipeline 62 is provided with a second stop valve 41, which together with the first common pipeline 6 constitutes the exhaust pipeline 4; the vacuum pump 31, the first stop valve 32, and the second stop valve 41 are connected to the controller.

[0025] A first pressure transmitter 17 is also provided on the connecting pipeline of the pressure gauge 16 in each sterilization chamber 1, and the first pressure transmitter 17 is connected to the controller.

[0026] It also includes a cooling pipeline 7 or / and a first drainage pipeline 8, wherein the cooling pipeline 7 includes an air compressor 71 connected to the cooling pipeline 7, and each sterilization chamber 1 is connected to the cooling pipeline 7 through a third valve body 72; a drain valve 81 is provided on the first drainage pipeline 8, and the first drainage pipeline 8 is connected to the air intake pipeline 13 of each sterilization chamber 1; the air compressor 71, the third valve body 72, and the drain valve 81 are connected to the controller. The cooling pipeline 7 is used for rapid cooling of the system of the present invention when it is shut down, and air is blown into each sterilization chamber 1 through the cooling pipeline 7 by the air compressor 71, so as to achieve the purpose of rapid cooling of the sterilization chamber. The first drainage pipeline 8 is used to discharge the condensed water generated by the water vapor in the system pipeline and the sterilization chamber 1. The first drainage pipeline 8 can be provided with a corresponding hand valve, a safety valve and a necessary solenoid valve. The end section of the first drainage pipeline 8 located after the drain valve 81 can be merged into the end section of the exhaust pipeline 4, and is located at the rear side of the second stop valve 41 through the exhaust pipeline 4, that is, the second branch pipeline 62.

[0027] The sterilization pipeline can be sterilized using existing technical methods or structures. In this embodiment, the sterilization pipeline is a steam pipeline 2, which is sterilized by steam through the steam pipeline 2. The steam pipeline 2 includes a steam generator 20, an air source pressure gauge 21, and a second pressure transmitter 22, which are sequentially connected to the steam connecting pipeline. The steam pipeline 2 is also provided with a filter 23. The steam generator 20 is connected to a second temperature sensor 24, a water inlet pipeline 25, and a second drainage pipeline 201; the steam generator 20 and the second temperature sensor 24 are connected to the controller.

[0028] The steam generator 20 is also connected to a first manual valve 29, the water inlet pipeline 25 is provided with a diaphragm pump 26 and a fourth valve body 27 in sequence, the fourth valve body 27 is a solenoid valve, and the steam pipeline 2 is also provided with a first safety valve 28; the diaphragm pump 26 and the fourth valve body 27 are connected to the controller.

[0029] It also includes a pressure balancing pipeline 9, which is connected to each sterilization chamber 1 in sequence through a sixth valve body 92. A fifth valve body 91 is provided on the pressure balancing pipeline 9, and the fifth valve body 91 is a solenoid valve. The fifth valve body 91 is connected to a controller. The pressure balancing pipeline 9 is used to adjust the pressure of the system pipeline to a preset reasonable range by opening or closing the fifth valve body 91. The pressure balancing pipeline 9 can be connected to each sterilization chamber 1 in sequence through the sixth valve body, i.e., the solenoid valve.

[0030] It also includes an outer box 10 for installing various components, the sterilization chambers 1 are arranged longitudinally or / and transversely in sequence on the outer box 10, and the in-chamber pressure gauges 16 are arranged on the outer box 10 in a one-to-one correspondence with the corresponding sterilization chambers 1. The air source pressure gauge 21 can also be arranged on the outer box 10. An operation screen, i.e., necessary switches, emergency stop switches, etc., can also be arranged on the outer box.

[0031] The controller may preferably be a PLC or a single chip microcomputer, and the hand valve may be a ball valve.

[0032] Before the operation of the system of the present invention, the biological indicator is placed in each sterilization chamber 1 in advance. The number of sterilization chambers 1 used can be determined according to user needs, and the sterilization time is set. Then, the sterilization can be started by one key, and the sterilization chamber 1 loaded with the biological indicator starts the sterilization function. After the sterilization of each sterilization chamber 1 is completed, the inspection personnel can be notified through the existing widely used APP network to prepare to take away the sterilized indicator.

[0033] The sterilization function of at least two multi-sterilization chambers 1 will double the detection efficiency compared to using a single sterilization chamber to sterilize more than two groups. The more sterilization times required, the higher the efficiency. It greatly saves detection time.

Claims

1. A pressure steam sterilization biological indicator resistance detection system capable of batch detection, comprising a sterilization pipeline, an exhaust pipeline, a vacuum pipeline, a sterilization chamber, and a controller, characterized in that: There are at least two sterilization chambers, each of which is provided with an insulation layer and an inner cavity. An air intake pipeline is also provided between the insulation layer and the inner cavity. A first valve body is provided on the air intake pipeline. The inner cavity is provided with a first temperature sensor and a pressure gauge in the chamber. Each sterilization chamber is connected in parallel with a sterilization pipeline, an exhaust pipeline, and a vacuum pipeline. A second valve body connected to the corresponding pipeline is provided between each sterilization chamber and the corresponding pipeline. The controller is connected to the corresponding functional actuators of the sterilization pipeline, the vacuum pipeline, and the exhaust pipeline and the first temperature sensor, the first and second valve bodies of each sterilization chamber; the first and second valve bodies are solenoid valves or electric regulating valves; and it also includes a first drainage pipeline, a drain valve is provided on the first drainage pipeline, and the first drainage pipeline is connected to the air intake pipeline of each sterilization chamber.

2. The pressure steam sterilization biological indicator resistance detection system capable of batch detection as claimed in claim 1, characterized in that: The vacuum extraction pipeline includes a vacuum pump and a first stop valve connected to the pipeline in sequence, and a second stop valve is provided on the exhaust pipeline; the intake pipeline is provided with two different first valve bodies with a large and a small intake volume, and the two different first valve bodies with a large and a small intake volume are respectively connected to the controller.

3. The pressure steam sterilization biological indicator resistance detection system capable of batch detection as claimed in claim 2, characterized in that: The vacuum pumping pipeline and the exhaust pipeline are provided with a first common pipeline, and the first common pipeline is connected to each sterilization chamber through a second valve body. The first common pipeline is provided with a first branch pipeline connected to a vacuum pump and a second branch pipeline for deflation. The first branch pipeline is provided with a first stop valve, which together with the first common pipeline constitutes a vacuum pumping pipeline, and the second branch pipeline is provided with a second stop valve, which together with the first common pipeline constitutes an exhaust pipeline; the vacuum pump, the first and second stop valves are connected to a controller.

4. The pressure steam sterilization biological indicator resistance detection system capable of batch detection as claimed in claim 1, characterized in that: A pressure transmitter is also provided on the connecting pipeline of the pressure gauge in each sterilization chamber, and the pressure transmitter is connected to the controller.

5. The pressure steam sterilization biological indicator resistance detection system capable of batch detection as claimed in claim 1, characterized in that: It also includes a cooling pipeline, which includes an air compressor connected to the cooling pipeline. Each sterilization chamber is connected to the cooling pipeline through a third valve body; the air compressor, the third valve body, the steam trap and the controller are connected.

6. The pressure steam sterilization biological indicator resistance detection system capable of batch detection as claimed in claim 1, characterized in that: The sterilization pipeline is a steam pipeline, which includes a steam generator, an air source pressure gauge, and a second pressure transmitter which are sequentially connected to the steam connecting pipeline. A filter is also provided on the steam pipeline. The steam generator is connected to a second temperature sensor, a water inlet pipeline, and a second drainage pipeline; the steam generator and the second temperature sensor are connected to a controller.

7. The pressure steam sterilization biological indicator resistance detection system capable of batch detection as claimed in claim 6, characterized in that: The steam generator is also connected to a first manual valve, the water inlet pipeline is sequentially provided with a diaphragm pump and a fourth valve body, the fourth valve body is a solenoid valve, and the steam pipeline is also provided with a first safety valve; the diaphragm pump and the fourth valve body are connected to a controller.

8. The pressure steam sterilization biological indicator resistance detection system capable of batch detection as claimed in claim 1, characterized in that: It also includes a pressure balancing pipeline, which is connected to each sterilization chamber in sequence through a sixth valve body. A fifth valve body is provided on the pressure balancing pipeline. The fifth valve body and the sixth valve body are solenoid valves, and the fifth valve body and the sixth valve body are connected to a controller.

9. The pressure steam sterilization biological indicator resistance detection system capable of batch detection according to any one of claims 1, 3 to 8, characterized in that: The controller is a PLC or a single chip microcomputer.

10. The pressure steam sterilization biological indicator resistance detection system capable of batch detection as claimed in claim 1, 4 or 6, characterized in that: It also includes an outer box body for installing various components, the sterilization chambers are arranged longitudinally and / or transversely in sequence on the outer box body, and the pressure gauges in the chambers are arranged on the outer box body in a one-to-one correspondence with the corresponding sterilization chambers.

Images