CN210158969U - Biological decontamination process challenge device - Google Patents
Biological decontamination process challenge device Download PDFInfo
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- CN210158969U CN210158969U CN201920457788.7U CN201920457788U CN210158969U CN 210158969 U CN210158969 U CN 210158969U CN 201920457788 U CN201920457788 U CN 201920457788U CN 210158969 U CN210158969 U CN 210158969U
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Abstract
The utility model discloses a challenge device for a biological decontamination process, relating to the field of biological decontamination effect inspection devices; the biological indicator comprises a main body, wherein the main body comprises a plurality of cavities with equal volumes for placing biological indicators, holes are formed in the upper portion of each cavity of the main body, the size of each hole is increased progressively, and a fixing device for fixing the biological indicators is arranged at the bottom of each cavity; the utility model discloses can evaluate hydrogen peroxide generator's biological decontamination effect fast.
Description
Technical Field
The utility model belongs to the biological decontamination effect verifying attachment field of vaporization and atomizing hydrogen peroxide, in particular to process challenge device to different exposure conditions in biological decontamination.
Background
The biological decontamination process challenge device is used for detecting biological decontamination effect.
Chinese patent No. CN101670124, granted date 20100317, discloses "process challenging device (PVD) and its application in sterilization effect monitoring"; the invention is an openable blind pipe which is made of polytetrafluoroethylene material and is composed of a barrel-shaped structure with a bottom, a rubber sealing gasket, a cap-shaped structure and a long pipe which are tightly connected, wherein the length of the openable blind pipe is 1.5m, and the inner diameter of the openable blind pipe is 2 mm; the utility model discloses a biological decontamination effect for quantitative determination high pressure steam sterilizer. Biological decontamination of high risk environments by means of vaporization and atomization of hydrogen peroxide is a common technique. Known application practices and experiments show that the biological decontamination effect is related to the degree of environmental surface exposure. However, when biological decontamination is performed on high-risk environments by adopting a vaporized and atomized hydrogen peroxide mode, no relevant device can rapidly detect the decontamination effect of the hydrogen peroxide generator on environmental surfaces with different exposure conditions at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the biological decontamination effect that can not the different degrees of exposure of the prior art in vaporization and the biological decontamination effect verifying attachment field of atomizing hydrogen peroxide quick judgement, providing one kind can the quick judgement different degrees of exposure biological decontamination effect's process challenge device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a challenge device for a biological decontamination process comprises a main body, wherein the main body comprises a plurality of cavities with equal volumes for placing biological indicators, the main body is provided with a hole above the cavities, the size of each hole is increased progressively, and the bottom of each cavity is provided with a fixing device for fixing the biological indicators. When the utility model is used, the biological indicator is placed at the same position of each cavity, then the utility model is placed at a certain position in the space waiting for biological decontamination, then the biological decontamination of hydrogen peroxide is carried out, because each hole is different in size, the larger the hole, the easier the hydrogen peroxide disinfectant enters into the cavity, otherwise, the smaller the hole, the harder the hydrogen peroxide disinfectant enters into the cavity, after the disinfection is completed, the biological indicator in each cavity is taken out, then the biological indicator is respectively placed into a test tube, then culture solution is respectively poured into the test tube, then the test tube is observed after the culture, if the test tube is turbid, no biological decontamination is clean, if the test tube is clear, the biological decontamination effect is qualified, for convenience of description, the utility model is assumed to have five holes arranged from left to right, and the size of the holes is gradually increased from left to right, then we can divide into five grades to biological decontamination effect, and the one-level stands for biological decontamination effect best, and five grades represent biological decontamination effect worst, and the test tube of discovery one-level, second grade after the hypothesis is cultivateed is turbid, and tertiary, level four and five test tubes are limpid, then indicate this hydrogen peroxide generator and be in the utility model discloses the position biological decontamination effect at present is tertiary at least, consequently the utility model discloses can evaluate hydrogen peroxide generator's biological decontamination effect fast to can compare the biological decontamination effect between the different hydrogen peroxide generators.
Preferably, the fixing device comprises a guide post, the bottom end of the guide post is fixedly connected to the bottom of the cavity, a bushing is sleeved on each guide post, a pressing sheet used for extruding the biological indicator to the bottom of the cavity is fixedly connected to one side of each bushing, a spring is arranged at the bottom of the cavity, one end of each spring is fixedly connected to the bottom of the cavity, the other end of each spring is fixedly connected to the corresponding bushing, and notches matched with the biological indicator are formed in the pressing sheets. One commonly used biological indicator in the art to test the biological decontamination efficacy of hydrogen peroxide generators is bacillus stearothermophilus ATCC12980, the biological indicator comprises a bowl-shaped metal sheet and is wrapped by a piece of folded wrapping paper, the bacillus stearothermophilus is positioned at the center of the bowl-shaped metal sheet, in the test, the variable is controlled, the biological indicator is ensured to be positioned at the same position of the cavity, therefore, the biological indicator needs to be well fixed, the biological indicator is fixed through the pressing sheet, the pressing sheet is pressed by the spring and presses the biological indicator at the bottom of the cavity to prevent the biological indicator from moving, and the pressing sheet is provided with a notch matched with the bowl-shaped metal sheet, so that the pressing sheet is only pressed at the edge position of the bowl-shaped metal sheet and the central position of the bowl-shaped metal sheet, the position of the bacillus stearothermophilus is not pressed, so that hydrogen peroxide disinfectant entering the cavity is prevented from blocking the tablet to disinfect the bacillus stearothermophilus; the utility model discloses prevent biological indicator indiscriminate move to experimental accurate nature has been guaranteed.
Preferably, the main body comprises a bottom plate, one side of the bottom plate is provided with two first side plates and two second side plates, the first side plate and the second side plate are both vertical to the bottom plate, the first side plate is positioned at two opposite sides of the bottom plate and is fixedly connected with the bottom plate, the second side plate is positioned between the two first side plates and is vertical to the first side plates, the two opposite sides of the second side plate are fixedly connected on the corresponding first side plates, one side of the second side plate close to the bottom plate is fixedly connected on the bottom plate, a plurality of partition plates parallel to the second side plate are arranged between the second side plates, one side of the clapboard close to the bottom plate is fixedly connected on the bottom plate, the clapboard is positioned between the first side plates and is fixedly connected with the first side plates at the two sides of the clapboard, the bottom plate is divided into a plurality of partitions by the partition plates, a cover plate is arranged above each partition, so that a plurality of cavities are formed, and the holes are formed in the cover plates. Be equipped with the hole on the apron, through the independent apron of every cavity collocation to the hole size that every cavity of can controlling in a flexible way corresponds, thereby can control in a flexible way the utility model discloses a detection range.
Preferably, each second side plate and each partition plate are provided with slots matched with the cover plate at the corresponding positions of the cover plate, one first side plate is provided with a sealing groove matched with the cover plate at the corresponding position of the cover plate, the upper side of the other first side plate is abutted against the cover plate, and the corresponding edge of the cover plate is positioned in the slots and the sealing groove. Utilize the slot to insert the apron, good leakproofness between apron and the first curb plate is guaranteed to the seal groove, the utility model discloses simple structure.
Preferably, one of the second side plates is provided with a plurality of L-shaped slots which are parallel to each other, the other second side plate is provided with a plurality of L-shaped protrusions which are matched with the L-shaped slots, the L-shaped protrusions are located on one side, away from the other second side plate, of the second side plate where the L-shaped protrusions are located, and the L-shaped slots are located on one side, away from the other second side plate, of the second side plate where the L-shaped slots are located. Add the protruding and L shape slot of L shape, consequently the utility model discloses can realize a plurality of extensions to biological decontamination effect grade can further refine.
Preferably, the length and width of the cavity are both 30mm, and the height of the cavity is 5 mm. Through a large amount of experiments, the cavity size is too big, can lead to the biological decontamination of every cavity all unqualified, and the cavity size is too little, can lead to the biological decontamination of every cavity all qualified, leads to biological decontamination effect to surpass the utility model discloses a measuring range's consequence, through a large amount of experiments, under 30mm 5 mm's cavity size, it is reasonable to detect the range, can adapt most hydrogen peroxide generators.
Alternatively, the fixing means may also be: the fixing device comprises a magnetic steel which is fixedly connected to the bottom of the cavity. When the magnetic steel isolator is used in an isolator environment, the bowl-shaped metal sheet can be taken out of the packaging paper and then is sucked by the magnetic steel, and the magnetic steel isolator has the characteristics of convenience in fixation and stability.
The utility model has the advantages that: (1) the utility model can quickly evaluate the biological decontamination effect of the hydrogen peroxide generators, thereby comparing the biological decontamination effect among different hydrogen peroxide generators; (2) the utility model prevents the biological indicator from moving disorderly, thereby ensuring the accuracy of the test; (3) the cover plate is provided with holes, and the size of the hole corresponding to each cavity can be flexibly controlled by matching each cavity with an independent cover plate, so that the detection range of the utility model can be flexibly controlled; (4) the cover plate is inserted by the slot, and the sealing groove ensures good sealing property between the cover plate and the first side plate; (5) the L-shaped bulge and the L-shaped slot are additionally arranged, so that the utility model can realize multiple lengthening, and the grade of the sterilization effect can be further refined; (6) through a large number of tests, the detection range is reasonable under the size of a cavity of 30mm by 5mm, and the hydrogen peroxide generator can be adapted to most hydrogen peroxide generators; (7) when the magnetic steel isolator is used in an isolator environment, the bowl-shaped metal sheet can be taken out of the packaging paper and then is sucked by the magnetic steel, and the magnetic steel isolator has the characteristics of convenience in fixation and stability.
Drawings
Fig. 1 is a top view of a first embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 2 at C;
FIG. 5 is an enlarged partial view taken at D in FIG. 2;
fig. 6 is a sectional view of a second embodiment of the present invention.
In the figure: the structure comprises a main body 1, a cavity 2, a hole 3, a bottom plate 4, a first side plate 5, a second side plate 6, a cover plate 7, a guide column 8, a lining 9, a pressing sheet 10, a spring 11, a notch 12, a slot 13, a sealing groove 14, a partition plate 15, an L-shaped slot 16, an L-shaped bulge 17 and magnetic steel 18.
Detailed Description
The invention will be further explained in detail with reference to the drawings and the following detailed description:
the first embodiment is as follows: fig. 1 to 5 show a challenge device for a biological decontamination process, which comprises a main body 1, wherein the main body 1 comprises a plurality of cavities 2 with equal volumes for placing biological indicators, the main body 1 is provided with a hole 3 above the cavities 2, the size of each hole 3 is increased progressively, and the bottom of each cavity 2 is provided with a fixing device for fixing the biological indicators. When the utility model is used, the biological indicator is placed at the same position of each cavity, then the utility model is placed at a certain position in the space waiting for biological decontamination, then the biological decontamination of hydrogen peroxide is carried out, because each hole is different in size, the larger the hole, the easier the hydrogen peroxide disinfectant enters into the cavity, otherwise, the smaller the hole, the harder the hydrogen peroxide disinfectant enters into the cavity, after the disinfection is completed, the biological indicator in each cavity is taken out, then the biological indicator is respectively placed into a test tube, then culture solution is respectively poured into the test tube, then the test tube is observed after the culture, if the test tube is turbid, no biological decontamination is clean, if the test tube is clear, the biological decontamination effect is qualified, for convenience of description, the utility model is assumed to have five holes arranged from left to right, and the size of the holes is gradually increased from left to right, then we can divide into five grades to biological decontamination effect, and the one-level stands for biological decontamination effect best, and five grades represent biological decontamination effect worst, and the test tube of discovery one-level, second grade after the hypothesis is cultivateed is turbid, and tertiary, level four and five test tubes are limpid, then indicate this hydrogen peroxide generator and be in the utility model discloses the position biological decontamination effect at present is tertiary at least, consequently the utility model discloses can evaluate hydrogen peroxide generator's biological decontamination effect fast to can compare the biological decontamination effect between the different hydrogen peroxide generators.
Fixing device includes a guide post 8, 8 bottom rigid couplings of guide post are in 2 bottoms of cavity, all the cover is equipped with a bush 9 on the guide post 8, bush 9 one side rigid coupling has a slice to be used for extrudeing the preforming 10 of 2 bottoms of cavity with biological indicator, 2 bottoms of cavity all are equipped with a spring 11, 11 one end rigid couplings of spring are in 2 bottoms of cavity, 11 other end rigid couplings of spring are on bush 9, all be equipped with the notch 12 with biological indicator adaptation on the preforming 10. One commonly used biological indicator in the art to test the biological decontamination efficacy of hydrogen peroxide generators is bacillus stearothermophilus ATCC12980, the biological indicator comprises a bowl-shaped metal sheet and is wrapped by a piece of folded wrapping paper, the bacillus stearothermophilus is positioned at the center of the bowl-shaped metal sheet, in the test, the variable is controlled, the biological indicator is ensured to be positioned at the same position of the cavity, therefore, the biological indicator needs to be well fixed, the biological indicator is fixed through the pressing sheet, the pressing sheet is pressed by the spring and presses the biological indicator at the bottom of the cavity to prevent the biological indicator from moving, and the pressing sheet is provided with a notch matched with the bowl-shaped metal sheet, so that the pressing sheet is only pressed at the edge position of the bowl-shaped metal sheet and the central position of the bowl-shaped metal sheet, the position of the bacillus stearothermophilus is not pressed, so that hydrogen peroxide disinfectant entering the cavity is prevented from blocking the tablet to disinfect the bacillus stearothermophilus; the utility model discloses prevent biological indicator indiscriminate move to experimental accurate nature has been guaranteed.
The main part 1 includes a bottom plate 4, bottom plate 4 one side is equipped with two first curb plates 5 and two second curb plates 6, first curb plate 5 and second curb plate 6 all are perpendicular with bottom plate 4, first curb plate 5 is located bottom plate 4 relative both sides and with bottom plate 4 rigid coupling, second curb plate 6 is located between two first curb plates 5 and perpendicular with first curb plate 5, the relative both sides rigid coupling of second curb plate 6 is on the first curb plate 5 that corresponds, second curb plate 6 is close to bottom plate 4 one side rigid coupling on bottom plate 4, be equipped with a plurality of baffles 15 parallel with second curb plate 6 between the second curb plate 6, baffle 15 is close to bottom plate 4 one side rigid coupling on bottom plate 4, baffle 15 is located between the first curb plate 5 and with the first curb plate 5 rigid coupling of baffle 15 both sides, baffle 15 cuts off bottom plate 4 into a plurality of partitions, the partition top all is equipped with a apron 7, thereby form a plurality of cavities 2, hole 3 is located apron 7. Be equipped with the hole on the apron, through the independent apron of every cavity collocation to the hole size that every cavity of can controlling in a flexible way corresponds, thereby can control in a flexible way the utility model discloses a detection range.
Every second curb plate 6 and baffle 15 all are equipped with the slot 13 with apron 7 adaptation in apron 7 corresponding position, and one of them first curb plate 5 is equipped with the seal groove 14 with apron 7 adaptation in apron 7 corresponding position, and another first curb plate 5 upside supports and leans on apron 7, and apron 7 corresponds the edge and is located slot 13 and seal groove 14. Utilize the slot to insert the apron, good leakproofness between apron and the first curb plate is guaranteed to the seal groove, the utility model discloses simple structure.
One of the second side plates 6 is provided with a plurality of L-shaped slots 16 which are parallel to each other, the other second side plate 6 is provided with a plurality of L-shaped protrusions 17 which are matched with the L-shaped slots 16, the L-shaped protrusions 17 are positioned on one side, away from the other second side plate 6, of the second side plate 6 where the L-shaped slots 16 are positioned, and the other side plate 6 where the L-shaped slots 16 are positioned is away from the other second side plate 6. Add the protruding and L shape slot of L shape, consequently the utility model discloses can realize a plurality of extensions to biological decontamination effect grade can further refine.
The length and width of the cavity 2 are both 30mm, and the height of the cavity 2 is 5 mm. Through a large amount of experiments, the cavity size is too big, can lead to the biological decontamination of every cavity all unqualified, and the cavity size is too little, can lead to the biological decontamination of every cavity all qualified, leads to biological decontamination effect to surpass the utility model discloses a measuring range's consequence, through a large amount of experiments, under 30mm 5 mm's cavity size, it is reasonable to detect the range, can adapt most hydrogen peroxide generators.
When the embodiment is used: can be used in various use environments, such as: isolator, transfer cabin, ordinary space etc. ordinary space is the space that needs the disinfection such as laboratory, operating room, hospital ward. When the biological indicator packaging paper is used in the transmission cabin and a common space, the biological indicator packaging paper can not be detached, and when the biological indicator packaging paper is used in the isolator, the biological indicator packaging paper can not be detached and can also be detached. When the biological indicator packaging paper is used, the packaging paper needs to be folded in half to reduce the volume due to the fact that the biological indicator packaging paper is large in size, then the packaging paper is placed in a cavity and pressed by a pressing sheet, then the packaging paper is placed at a position needing to be detected, inoculation and cultivation are carried out after disinfection is finished, it needs to be noted that when the biological indicator packaging paper is used in an isolator, inoculation also needs to be finished in the isolator, then a test tube is taken out and cultivated, disinfection conditions of biological indicators in all cavities are observed after cultivation is finished, and quick judgment of biological decontamination effects of a hydrogen peroxide sterilizer is finished.
Example two: this embodiment is substantially the same as the first embodiment, except that: the fixing device comprises a magnetic steel 18, and the magnetic steel 18 is fixedly connected to the bottom of the cavity 2. When the magnetic steel isolator is used in an isolator environment, the bowl-shaped metal sheet can be taken out of the packaging paper and then is sucked by the magnetic steel, and the magnetic steel isolator has the characteristics of convenience in fixation and stability.
When the embodiment is used: can only use in the isolator, during the use take out bowl form sheetmetal from the wrapping paper in the isolator, then hold with the magnet steel, then disinfect, inoculate in the isolator after the disinfection is accomplished, then take out the test tube after the inoculation from the isolator and cultivate, observe the disinfection condition of biological indicator in each cavity after the cultivation is accomplished, accomplish the quick judgement to hydrogen peroxide sterilizer biological decontamination effect.
Claims (7)
1. A challenge device for a biological decontamination process is characterized by comprising a main body, wherein the main body comprises a plurality of cavities with equal volumes for placing biological indicators, the main body is provided with a hole above the cavities, the size of each hole is increased progressively, and the bottoms of the cavities are provided with a fixing device for fixing the biological indicators.
2. The device for challenging a biological decontamination process according to claim 1, wherein the fixing device comprises a guide post, the bottom end of the guide post is fixedly connected to the bottom of the cavity, the guide post is sleeved with a bushing, one side of the bushing is fixedly connected with a pressing sheet for pressing the biological indicator to the bottom of the cavity, the bottom of the cavity is provided with a spring, one end of the spring is fixedly connected to the bottom of the cavity, the other end of the spring is fixedly connected to the bushing, and the pressing sheet is provided with a notch matched with the biological indicator.
3. The challenge device for a bio-decontamination process according to claim 1, wherein the main body comprises a bottom plate, one side of the bottom plate is provided with two first side plates and two second side plates, the first side plates and the second side plates are perpendicular to the bottom plate, the first side plates are positioned at two opposite sides of the bottom plate and are fixedly connected with the bottom plate, the second side plates are positioned between the two first side plates and are perpendicular to the first side plates, two opposite sides of the second side plates are fixedly connected to the corresponding first side plates, the second side plates are fixedly connected to the bottom plate at a side close to the bottom plate, a plurality of partition plates parallel to the second side plates are arranged between the second side plates, the partition plates are fixedly connected to the bottom plate at a side close to the bottom plate, the partition plates partition the bottom plate into a plurality of partitions, and a cover plate is arranged above the partitions, thereby forming a plurality of cavities, and the holes are positioned on the cover plate.
4. The biological decontamination process challenge device of claim 3, wherein each of the second side plate and the partition plate has a slot adapted to the cover plate at a corresponding position of the cover plate, one of the first side plate has a sealing groove adapted to the cover plate at a corresponding position of the cover plate, and the other first side plate abuts against the cover plate at an upper side thereof, and corresponding edges of the cover plate are located in the slot and the sealing groove.
5. The biological decontamination process challenge device of claim 3 or 4, wherein one of the second side plates is provided with a plurality of L-shaped slots parallel to each other, and the other of the second side plates is provided with a plurality of L-shaped protrusions fitted into the L-shaped slots, the L-shaped protrusions are located on the side of the second side plate away from the other of the second side plates, and the L-shaped slots are located on the side of the second side plate away from the other of the second side plates.
6. The biodecontamination process challenge device of any of claims 1, 2, 3 or 4, wherein the cavity is 30mm long and wide and the cavity is 5mm high.
7. The biological decontamination process challenge device of any one of claims 1, 3, or 4, wherein the securing means comprises a magnetic steel secured to the bottom of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920457788.7U CN210158969U (en) | 2019-04-04 | 2019-04-04 | Biological decontamination process challenge device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920457788.7U CN210158969U (en) | 2019-04-04 | 2019-04-04 | Biological decontamination process challenge device |
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| CN210158969U true CN210158969U (en) | 2020-03-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051871A (en) * | 2019-04-04 | 2019-07-26 | 浙江泰林生物技术股份有限公司 | A kind of bio-decontaminated process challenge device |
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2019
- 2019-04-04 CN CN201920457788.7U patent/CN210158969U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051871A (en) * | 2019-04-04 | 2019-07-26 | 浙江泰林生物技术股份有限公司 | A kind of bio-decontaminated process challenge device |
| CN110051871B (en) * | 2019-04-04 | 2023-11-28 | 浙江泰林生物技术股份有限公司 | Biological decontamination process challenge device |
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