CN113262314A - Pressure steam sterilization process verification device capable of being visually interpreted - Google Patents

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a pressure steam sterilization process verification device capable of being visually interpreted, which comprises a PET (polyethylene terephthalate) base material and a resistance layer, wherein the lower part of the resistance layer is hermetically connected with the PET base material, a cabin body is arranged at the upper end of the resistance layer, an air inlet channel communicated with the cabin body is arranged at the lower end of the resistance layer, and a chemical indicator card is loaded in the cabin body. The resistance part of the pressure steam sterilizer is a unique pipeline design, the most difficult sterilization condition of the pressure steam sterilizer can be accurately simulated, the whole device is made of transparent PET material, scalding can be prevented, a crawling type chemical indicating card is arranged in the pressure steam sterilizer, the performance of the pressure steam sterilizer meets the requirements of international standard 5 th class chemical indicators, the sterilization effect of the pressure steam sterilizer is visually judged through the crawling distance of black indicating tablets in the crawling type chemical indicating card, and the influence of subjective factors caused by judging the color change of the chemical indicators of the existing verification device is solved.

Description

Pressure steam sterilization process verification device capable of being visually interpreted

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a pressure steam sterilization process verification device capable of being intuitively interpreted.

Background

The medical instrument sterilization effect monitoring standard stipulates that representative PCD (sterilization process verification device) can be selected for monitoring the sterilization effect according to the type of the sterilized article to be loaded. The sterilization process verification device verifies the sterilization effect by simulating the most difficult sterilization state, thereby achieving the purpose of batch release.

Along with the development of medical instruments, the pressure steam sterilization technology shows superiority, however, the sterilization difficulty of the lumen instrument is far higher than that of other medical instruments, and the indicator in the bag only can monitor the sterilization effect on the surface of the instrument, and the sterilization effect in the lumen is difficult to monitor, so the pressure steam sterilization process verification device comes into force.

Medical personnel put into pressure steam sterilization process verification device with pressure steam sterilization chemical indicator, then put into pressure steam sterilizer with the device, observe the colour change of chemical indicator after the sterilization, and then judge the sterilization effect of pressure steam sterilizer, also can reach the mesh that the parcel was released in batches in the whole sterilizer.

Patent 202020827141.1A pressure steam sterilization extremely fast comprehensive challenge lumen sterilization verification device, including polytetrafluoroethylene hose, fast plug-in type sealing joint, extremely fast biological indicator cavity, sealed rubber ring, extremely fast biological indicator and indicator cavity upper cover constitution, its chemical indicator is pressure steam sterilization fifth kind of chemical indicator, extremely fast biological indicator includes transparent bottle, the cap that has the bleeder vent, ampoule support, fungus piece and first kind of chemical indicator.

Patent 201721595845.5 discloses a chemical verification device for pressure steam sterilization tube cavity, which mainly comprises a chemical indicator card and a resistance system. The resistance system consists of a cabin body, a cabin body cap and a polytetrafluoroethylene tube, wherein the cabin body is cylindrical, and the polytetrafluoroethylene tube is in a slender spiral shape. The cabin body and the cabin body cap of the resistance system are connected in a threaded mode, and the polytetrafluoroethylene tube is attached to the side faces of the cabin body and the cabin body cap.

Therefore, the existing pressure steam sterilization process verification device is made of polytetrafluoroethylene, is expensive, and needs to judge the sterilization effect of the pressure steam sterilizer by observing the color change of the chemical indicator through naked eyes, so that the pressure steam sterilization process verification device is easily influenced by subjective factors, causes interpretation errors and has hospital risk.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the pressure steam sterilization process verification device capable of being visually interpreted is provided, and the influence of subjective factors caused by the interpretation of the color change of a chemical indicator of the conventional verification device is solved.

The invention is realized by adopting the following technical scheme:

the pressure steam sterilization process verification device capable of being visually interpreted comprises a PET (polyethylene terephthalate) base material and a resistance layer, wherein the lower part of the resistance layer is hermetically connected with the PET base material, a cabin body is arranged at the upper end of the resistance layer, an air inlet channel communicated with the cabin body is arranged at the lower end of the resistance layer, and a chemical indicator card is loaded in the cabin body.

Wherein:

the lower part of the steam inlet channel is provided with a steam inlet.

The chemical indicator card is a crawling type chemical indicator card, the sterilization effect of the pressure steam sterilizer is visually judged through the crawling distance of black indicator tablets in the crawling type chemical indicator card, the black indicator tablets reach a qualified area and then represent qualification, and the black indicator tablets do not reach the qualified area and then represent failure.

The resistance layer is made of PET.

The steam inlet channels are arranged horizontally in a continuous S shape.

The steam inlet channel is provided with a plurality of buffer cavities.

The resistance part of the pressure steam sterilizer is a unique pipeline design, the most difficult sterilization condition of the pressure steam sterilizer can be accurately simulated, the whole device is made of transparent PET material, scalding can be prevented, a crawling type chemical indicating card is arranged in the pressure steam sterilizer, the performance of the pressure steam sterilizer meets the requirements of international standard 5 th class chemical indicators, the sterilization effect of the pressure steam sterilizer is visually judged through the crawling distance of black indicating tablets in the crawling type chemical indicating card, and the influence of subjective factors caused by judging the color change of the chemical indicators of the existing verification device is solved.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention adopts transparent PET material, has low price and can prevent scald.

2. The crawling chemical indicator card is arranged in the device, so that the sterilization effect of the pressure steam sterilizer can be visually judged.

3. The invention adopts a unique pipeline design as a resistance part and can accurately simulate the most difficult sterilization condition of the pressure steam sterilizer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of FIG. 1;

FIG. 3 is a schematic representation of a sample of the present invention;

in the figure: 1. a PET substrate; 2. a resistance layer; 3. a cabin body; 4. a chemical indicator card; 5. a steam inlet passage; 6. a buffer chamber; 7. and a steam inlet.

Detailed Description

The invention is further described below with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1-3, the pressure steam sterilization process verification device capable of being visually interpreted comprises a PET substrate 1 and a resistance layer 2, wherein the lower part of the resistance layer 2 is hermetically connected with the PET substrate 1, a cabin body 3 is arranged at the upper end of the resistance layer 2, anair inlet channel 5 communicated with the cabin body 3 is arranged at the lower end of the resistance layer 2, and a chemical indicator card 4 is loaded in the cabin body 3.

The lower part of thesteam inlet channel 5 is provided with asteam inlet 7.

The chemical indicator card 4 is a creeping type chemical indicator card.

The resistance layer 2 is made of PET material.

Thesteam inlet channels 5 are arranged horizontally in a continuous S shape.

Thesteam inlet channel 5 is provided with a plurality ofbuffer cavities 6.

In the pressure steam sterilization process, saturated steam diffuses into thesteam inlet channel 5 through thesteam inlet 7 and is used as a resistance part through the unique pipeline design of the invention, the most difficult sterilization condition of the pressure steam sterilizer can be accurately simulated, when the saturated steam diffuses into the cabin body 3, the creeping type chemical indicator card 4 loaded in the cabin body 3 has the performance meeting the requirements of the international standard 5 th class chemical indicator, the sterilization effect of the pressure steam sterilizer is visually judged through the creeping distance of the black indicator tablet in the creeping type chemical indicator card 4, the black indicator tablet is qualified when reaching a qualified area, and the black indicator tablet is failed when not reaching the qualified area.

Of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.

Claims (6)

1. The utility model provides a pressure steam sterilization process verifying attachment that can directly perceived interpretation which characterized in that: the anti-explosion PET composite material comprises a PET base material (1) and an anti-force layer (2), wherein the lower part of the anti-force layer (2) is connected with the PET base material (1) in a sealing mode, a cabin body (3) is arranged at the upper end of the anti-force layer (2), an air inlet channel (5) communicated with the cabin body (3) is arranged at the lower end of the anti-force layer (2), and a chemical indicator card (5) is loaded in the cabin body (3).

2. The visually interpretable pressure steam sterilization process verification apparatus according to claim 1, wherein: the lower part of the steam inlet channel (5) is provided with a steam inlet (7).

3. The visually interpretable pressure steam sterilization process verification apparatus according to claim 1, wherein: the chemical indicator card (4) is a creeping type chemical indicator card.

4. The visually interpretable pressure steam sterilization process verification apparatus according to claim 1, wherein: the resistance layer (2) is made of PET material.

5. The visually interpretable pressure steam sterilization process verification apparatus according to claim 1, wherein: the steam inlet channels (5) are arranged horizontally in a continuous S shape.

6. The visually interpretable pressure steam sterilization process verification apparatus according to claim 1, wherein: the steam inlet channel (5) is provided with a plurality of buffer cavities (6).

Images