CN212532971U - Sterile bag for microbiological detection of medical instruments - Google Patents
Sterile bag for microbiological detection of medical instruments Download PDFInfo
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- CN212532971U CN212532971U CN202021065089.7U CN202021065089U CN212532971U CN 212532971 U CN212532971 U CN 212532971U CN 202021065089 U CN202021065089 U CN 202021065089U CN 212532971 U CN212532971 U CN 212532971U
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Abstract
The utility model relates to a no aseptic bag for medical instrument microbial detection, its characterized in that: comprises a puncture rubber plug, a bag body, a sealing steel wire and a liquid discharge pipe which are arranged on the bag body; one end of the liquid discharge pipe is communicated with the interior of the bag body, and the other end of the liquid discharge pipe is detachably connected with the puncture rubber plug; an easy-to-pull ring cover covering the end face of the puncture rubber plug is arranged on the puncture rubber plug. The utility model discloses a fluid-discharge tube, puncture plug and both detachable designs make this aseptic bag no matter be used for the detection of membrane filtration method or be used for dull and stereotyped count method, can both reduce microbial contamination's probability, and can improve work efficiency.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to an aseptic bag for medical equipment microbial detection.
Background
The microbiological detection of medical instruments mainly relates to the bioburden detection and the sterility detection of the medical instruments. The method for testing the biological load mainly comprises a flat plate counting method and a film filtering method, wherein the film filtering method has the characteristics of high detection accuracy, capability of removing or weakening the bacteriostatic property of a sample by washing and the like, and the film filtering method is widely applied to the detection of the biological load of medical equipment; although the flat plate counting method has lower precision than the membrane filtration detection, the flat plate counting method has simple operation and low cost, and is still widely used in the sample detection with higher biological load value and no bacteriostasis. The sterility test method mainly comprises a direct inoculation method and a membrane filtration method, and the membrane filtration method undoubtedly provides a high-quality solution for some medical instruments which cannot be contacted with liquid for a long time and have potential bacteriostatic activity. Therefore, both the membrane filtration method and the plate counting method have their irreplaceable positions in the microbiological detection of medical instruments.
The operation process of the membrane filtration method is simply the process that microorganisms on the surface of a sample to be detected are transferred into proper eluent in a specific sterile container in the modes of physical shaking, ultrasonic elution and the like, then the eluent is subjected to membrane filtration, and the microorganisms are collected on a filter membrane for subsequent microorganism detection; the plate counting method is simply a testing method that microbes on the surface of a sample to be tested are transferred into proper eluent in a special sterile container through modes of physical shaking, ultrasonic elution and the like, and the proper amount of eluent is taken and poured into a corresponding culture medium for plate counting. The common and most critical step of the two detection methods is the preparation process of the sample eluent to be detected.
Aseptic bag, a kind of takes the polyethylene granule as raw materials, through blowing the membrane, cutting, heat-seal, the novel packaging material of high-tech that processes such as vacuum packaging, sterilization produced under clean environment, in recent years, because aseptic bag has characteristics such as convenient to use, specification are various, it is widely applied to the preparation process of the sample eluant in the microbiological assay. At present, due to simple structure and single function, the aseptic bag used in the preparation process of sample eluent for microbial detection has the problems of inconvenient operation, complexity, low testing efficiency, high pollution probability and the like; when the method is used for a membrane filtration method, after the elution of a sample to be detected is finished, the sample eluent needs to be transferred from the sterile bag to a filtering container containing a rubber plug, and then the membrane filtration operation can be carried out, so that the operation of the eluent transfer process is extremely inconvenient, and the possibility of microbial contamination is greatly increased in the transfer process; when being used for dull and stereotyped count method, then need all open aseptic bag and absorb the eluant and detect, this step complex operation, single be difficult to operate, efficiency of software testing is low, and need all open aseptic sack among the sampling process, greatly increased subside the microbial contamination probability of fungus, planktonic bacteria and operating personnel etc. to the sample eluant.
Disclosure of Invention
The utility model overcomes the defects of the prior art and provides an aseptic bag for the microbial detection of medical instruments, which has simple operation and low pollution probability.
In order to achieve the above purpose, the utility model adopts the technical scheme that: provided is a sterile bag for microbiological testing of medical devices, characterized in that: comprises a puncture rubber plug, a bag body, a sealing steel wire and a liquid discharge pipe which are arranged on the bag body; one end of the liquid discharge pipe is communicated with the interior of the bag body, and the other end of the liquid discharge pipe is detachably connected with the puncture rubber plug; an easy-to-pull ring cover covering the end face of the puncture rubber plug is arranged on the puncture rubber plug.
Preferably, the drainage tube and the puncture rubber plug are connected through a luer connector.
As a more preferred aspect, the luer connector includes a male and a female; the male head is provided with an external thread, and the female head is provided with an internal thread matched with the male head.
Preferably, the drain pipe is arranged at the bottom of the bag body.
More preferably, a nonwoven fabric diaphragm is provided in the bag body to separate the drain pipe from the bag body opening.
As a preferred scheme, the sealing steel wire is arranged below the opening part of the bag body, and two ends of the sealing steel wire respectively extend out of two sides of the bag body.
As a more preferable scheme, both ends of the sealing steel wire are wrapped by plastic.
More preferably, the lengths of the two ends of the sealing steel wire extending out of the two sides of the bag body are respectively set to be at least 4.5 cm.
As a preferable scheme, the outer surface of the bag body is also provided with a frosted area.
Compared with the prior art, the utility model beneficial technological effect lies in:
(1) the utility model designs a liquid discharge pipe, a puncture rubber plug and an easy-to-pull ring cover at the bottom of the bag body; when the membrane filter is used for the membrane filtration method, the puncture needle of the membrane filter can be directly punctured into the puncture rubber plug to be communicated with the liquid discharge pipe, and eluent is led out to carry out membrane filtration. Compared with the conventional process in which the sample eluent is transferred to the filtering container containing the rubber plug from the sterile bag, the method can carry out membrane filtration, greatly reduce the probability of microbial contamination possibly caused in the eluent transfer process, simplify the test process, avoid the contamination and greatly improve the working efficiency.
(2) The liquid discharge pipe and the puncture rubber plug of the utility model are detachably connected through the luer connector; when the plate counting method is used, the drain pipe and the puncture rubber plug can be detached from the luer joint; directly and quantitatively absorbing required sample eluent from the disassembled male head by using a pipettor to perform flat plate counting detection; compared with the conventional process, the time for opening the sterile bag again is saved, and huge potential pollution possibly caused by opening the whole sterile bag is avoided; and can be operated by one person, thereby greatly improving the working efficiency while avoiding pollution.
(3) The utility model discloses the non-woven fabrics diaphragm of internal setting of bag is convenient for carry out the large granule material that probably exists in the sample eluant and is held back in advance to prevent that the large granule material from discharging from the fluid-discharge tube along with the eluant, avoid the large granule material to block the problem of film filter pjncture needle, pipettor rifle head and filter membrane, increase test operation's convenience, improve work efficiency.
(4) The utility model lengthens the length of the sealing steel wire extending out of the side edge of the bag body, and a user can fold the redundant sealing steel wire into a hook ring shape after tightening the opening part of the bag body; the folded shackles can be hung on shelves such as a bacteria collector hanger and the like to perform subsequent membrane filtration operation, so that both hands are liberated, and the efficiency is improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Fig. 2 is a schematic diagram of the membrane filtration process according to the preferred embodiment of the present invention.
Fig. 3 is a schematic view of the luer fitting of the present invention when separated.
Fig. 4 is a schematic view of the separation process of the piercing plug and the easy-pulling ring cap of the present invention.
In the figure: 1 is a bag body, 11 is a bag body bottom, 12 is a bag body opening, 13 is a frosted area, 2 is a puncture rubber plug, 3 is a sealing steel wire, 4 is a liquid discharge pipe, 5 is a luer connector, 51 is a male head, 52 is a female head, 6 is an easy-pull ring cover, and 7 is a non-woven fabric diaphragm.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and thus show only the components relevant to the invention; meanwhile, the following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby. In addition, it should be noted that the terms "front," "rear," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-4, an aseptic bag for detecting microorganisms in medical instruments comprises a puncture rubber plug 2, a bag body 1, and a sealing steel wire 3 and a liquid discharge pipe 4 arranged on the bag body 1.
The liquid discharge pipe 4 is arranged at the bottom 11 of the bag body 1 and is used for discharging eluent out of the bag body 1 after oscillation elution; one end of the liquid discharge pipe 4 is communicated with the interior of the bag body 1, and the other end is detachably connected with the puncture rubber plug 2; specifically, the drainage tube 4 is connected with the puncture rubber plug 2 through a luer connector 5.
The luer connector 5 comprises a male head 51 and a female head 52, wherein the male head 51 is connected and communicated with the liquid discharge pipe 4; the female head 52 is fixedly connected with one end of the puncture rubber plug 2; the male head 51 and the female head 52 are detachably connected through thread fit, so that the discharge pipe 4 and the puncture rubber plug 2 are detachably connected; preferably, the male head 51 is provided with an external thread, and the female head 52 is provided with an internal thread matched with the external thread; this setting makes female 52 wrap public head 51 during the assembly, can effectively avoid external environment and operating personnel to the possible pollution problem that brings of the eluant in the bag body 1.
One end of the puncture rubber plug 2 which is not connected with the female head 52 is provided with a disposable easy-to-pull ring cover 6 which covers the end surface of the puncture rubber plug; the easy-to-pull ring cover 6 can protect the puncture rubber plug 2, so that the puncture rubber plug is only contacted with the outside when in use, is isolated from the outside at ordinary times, and can ensure the sterility of the puncture rubber plug 2.
The sealing steel wire 3 is arranged below the opening part 12 of the bag body 1, extends along the opening width direction of the opening part 12, and two ends of the sealing steel wire respectively extend out of two sides of the bag body 1; the sealing steel wire 3 is used for fastening the opening part 12 of the bag body 1 after articles are put in; the length of the two ends of the sealing steel wire 3 extending out of the two sides of the bag body 1 is at least 4.5cm (6 cm in the embodiment), compared with the length of 3cm of the conventional sealing steel wire, the utility model lengthens the sealing steel wire; in addition, the two ends of the sealing steel wire 3 are wrapped by plastic, so that a user can be prevented from being pricked by the two ends of the sealing steel wire 3, and the phenomenon that the two ends of the sealing steel wire 3 can pierce a sterile bag under the conditions of mechanical elution modes such as oscillation and the like, so that the pollution of eluent and the failure of an experiment can be avoided.
The bag body 1 is also internally provided with a non-woven fabric diaphragm 7 which can separate the liquid discharge pipe 4 from the bag body opening part 12; in the process of oscillating elution of some samples, large particulate matters on the surface of the samples or contained in the samples can be eluted into sample eluent, and the large particulate matters are likely to contact parts such as a puncture needle, a pipette tip, a filter membrane and the like of a membrane filter along with the eluent in subsequent detection to cause blockage of the parts. The setting of event non-woven fabrics diaphragm 7 is convenient for carry out the pre-trapping with the large granule material that probably exists in the sample eluant to prevent that the large granule material from discharging from fluid-discharge tube 4 along with the eluant, avoid the problem that the large granule material blocks membrane filter pjncture needle, pipettor rifle head and filter membrane, increase test operation's convenience, improve work efficiency.
In addition, the outer surface of the bag body 1 is also provided with a frosted area 13, so that the number or other information of the experiment can be conveniently recorded. Meanwhile, when the bag body 1 is not used, the opening part 12 is in a closed state; when in use, the mouth part 12 of the bag body is opened by tearing the easy-to-tear sawtooth line on the bag body 1, thereby ensuring the cleanness of the aseptic bag.
The utility model discloses an use flow:
when the membrane filtration method is used, the opening part 12 of the bag body is opened, and a sample and eluent are put into the bag body 1; the mouth part 12 of the bag body is tied up by using a sealing steel wire 3; shaking for elution; then the disposable easy-to-pull ring cover 6 is pulled open, the puncture needle of the membrane filter is directly punctured into the puncture rubber plug 2, and the puncture needle is communicated with the liquid discharge pipe 4 after passing through the luer 5; starting the bacteria collector connected with the membrane filter in a matching way, and introducing the eluent into the membrane filter through the puncture needle for membrane filtration. Compared with the conventional process in which the sample eluent is transferred to the filtering container containing the rubber plug from the sterile bag, the membrane filtering operation can be performed, so that the probability of microbial contamination possibly caused in the eluent transfer process is greatly reduced, the test process is simplified, and the working efficiency is greatly improved while the contamination is avoided. In addition, the length of the sealing steel wire 3 extending out of the side edge of the bag body 1 is lengthened, and a user can fold the redundant sealing steel wire 3 into a hook-and-loop shape after tightening the opening part of the bag body 1 (the existing stainless steel wire is shorter, and no residual length can be folded into a hook-and-loop shape after tightening the aseptic bag); after oscillation elution, the folded hook ring can be hung on a rack such as a bacteria collector rack for subsequent membrane filtration operation, so that both hands are liberated, and the efficiency is improved.
When used in the plate counting method, the starting procedure is the same as in the membrane filtration method; after shaking for elution, the drain pipe 4 and the puncture rubber plug 2 are disassembled from the luer joint 5; directly and quantitatively absorbing required sample eluent from the disassembled male head 51 by using a pipettor for flat plate counting detection; compared with the conventional process, the time for opening the sterile bag again is saved, and huge potential pollution possibly caused by opening the whole sterile bag is avoided; and can be operated by one person, thereby greatly improving the working efficiency while avoiding pollution.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A sterile bag for the microbiological testing of medical devices, characterized in that: comprises a puncture rubber plug, a bag body, a sealing steel wire and a liquid discharge pipe which are arranged on the bag body; one end of the liquid discharge pipe is communicated with the interior of the bag body, and the other end of the liquid discharge pipe is detachably connected with the puncture rubber plug; an easy-to-pull ring cover covering the end face of the puncture rubber plug is arranged on the puncture rubber plug.
2. The sterile bag for medical device microbiological detection as claimed in claim 1, wherein: the liquid discharge pipe is connected with the puncture rubber plug through a luer connector.
3. The sterile bag for medical device microbiological detection as claimed in claim 2, wherein: the luer connector comprises a male head and a female head; the male head is provided with an external thread, and the female head is provided with an internal thread matched with the male head.
4. The sterile bag for medical device microbiological detection as claimed in claim 1, wherein: the liquid discharge pipe is arranged at the bottom of the bag body.
5. The sterile bag for medical device microbiological detection as claimed in claim 4, wherein: the bag body is internally provided with a non-woven fabric diaphragm which can separate the liquid discharge pipe from the opening part of the bag body.
6. The sterile bag for medical device microbiological detection as claimed in claim 1, wherein: the sealing steel wire is arranged below the opening part of the bag body, and two ends of the sealing steel wire respectively extend out of two sides of the bag body.
7. The sterile bag for medical device microbiological detection as claimed in claim 6, wherein: and the two ends of the sealing steel wire are wrapped by plastic.
8. The sterile bag for medical device microbiological detection as claimed in claim 7, wherein: the length of the two ends of the sealing steel wire extending out of the two sides of the bag body is at least 4.5 cm.
9. Sterile bag for the microbiological detection of medical devices according to any one of claims 1 to 8, characterized in that: the outer surface of the bag body is also provided with a frosting area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021065089.7U CN212532971U (en) | 2020-06-11 | 2020-06-11 | Sterile bag for microbiological detection of medical instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021065089.7U CN212532971U (en) | 2020-06-11 | 2020-06-11 | Sterile bag for microbiological detection of medical instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212532971U true CN212532971U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021065089.7U Active CN212532971U (en) | 2020-06-11 | 2020-06-11 | Sterile bag for microbiological detection of medical instruments |
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| Country | Link |
|---|---|
| CN (1) | CN212532971U (en) |
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2020
- 2020-06-11 CN CN202021065089.7U patent/CN212532971U/en active Active
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Address after: 215000 rooms 101, 201, 301, 401 and 501, building 2, No. 188, Fuchunjiang Road, high tech Zone, Suzhou, Jiangsu Patentee after: Suzhou Suda health and Environmental Technology Research Institute Co.,Ltd. Address before: 215000 463 Shizi street, Gusu District, Suzhou City, Jiangsu Province Patentee before: SANITATION & ENVIRONMENT TECHNOLOGY INSTITUTE, SOOCHOW University |
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