A convenient BD test kit

Abstract

The present application provides a portable B-D test kit, which relates to the field of medical sterilization technology. The portable B-D test kit provided by the present application includes an upper cover, a breathable layer and a lower cover connected in sequence, the upper cover and the lower cover are both made of airtight materials and the upper cover is made of transparent materials, the B-D test card is arranged at the center of the breathable layer, the upper cover and the lower cover are both provided with a hand-held part, and the bottom of the lower cover is provided with a folding mechanism that enables the lower cover to be folded downward; at least one of the bottom of the B-D test card and the bottom of the lower cover is provided with a back adhesive layer, and the bottom of the back adhesive layer is covered with release paper; a transparent window area is provided at the center of the upper cover; a B-D test card installation slot that passes through the breathable layer is provided at the center of the breathable layer, and the B-D test card is arranged in the B-D test card installation slot, and the B-D test card installation slot is coaxially arranged with the transparent window area. The portable B-D test kit proposed in the present application, the upper cover and the lower cover are both made of airtight materials, and the steam in and out is controlled only by the breathable layer, which provides resistance for the steam and cold air in and out while avoiding covering the surface of the B-D test card.

Description

Technical Field

[0001] The present application relates to the field of medical sterilization technology, and more specifically, to a convenient BD test kit. Background Art

[0002] BD test package is the abbreviation of Bowie-Dick test package, which is usually used in BD test to evaluate the vacuum process of pre-vacuum sterilizers (including pulsating vacuum sterilizers). This test can evaluate the insufficient vacuum state of the sterilizer. The insufficient vacuum state reflects the incomplete removal of air from the sterilizer cabinet or the leakage of the door sealing gasket, which causes air to remain in the sterilizer cabinet. This residual air will prevent steam from penetrating the items in the sterilizer cabinet during the steam exposure stage of the sterilization process, thus resulting in unqualified sterilization quality. The BD test chart in the BD test package is coated with chemical indicators that are sensitive to residual air. The uniform color change of the BD test paper indicates that the air is completely removed and the steam penetration ability is good; while the bright area or uneven color change of the BD test paper indicates that there is residual air in the sterilizer cabinet. If the BD test paper fails, the equipment should be checked and the problem should be solved. Normal sterilization can only be carried out until the test passes.

[0003] The BD test pack of the prior art is assembled by stacking multiple layers of linen, cotton or cardboard, and placing the BD test chart in the middle of the multiple layers, and then packaging the whole with an outer layer and pasting and sealing. For example, the Chinese utility model patent with publication number CN 215217917 U, a mini BD test pack for pressure steam sterilization, discloses placing the BD test chart in the first sponge layer, the second sponge layer and several paper layers, thereby increasing the amount of cold air, thereby increasing the difficulty of cold air removal and the difficulty of saturated steam penetration.

[0004] However, there are some problems with the existing technology. Specifically, after sterilization, the outer layer needs to be removed, the contents need to be taken out, and the BD test chart needs to be found in the multi-layer laminate to view the results. Unpacking is troublesome, time-consuming and labor-intensive. The material cost is high, the process is complicated and a large amount of medical waste is generated, which puts great pressure on the sterilization of the medical system. Utility Model Content

[0005] To solve the problems existing in the existing BD test kits, the technical solution adopted in this application is a convenient BD test kit, including a test kit body and a BD test card;

[0006] The main body of the test package includes an upper cover, a breathable layer and a lower cover which are connected in sequence. The upper cover and the lower cover are both made of airtight materials and the upper cover is made of transparent materials. The BD test card is arranged in the center of the breathable layer. The upper cover and the lower cover are both provided with a hand-held part. A folding mechanism is provided at the bottom of the lower cover which enables the lower cover to be folded downward.

[0007] Preferably, the folding mechanism is a folding ridge or a folding groove.

[0008] Preferably, at least one of the bottom of the BD test card and the bottom of the lower cover is provided with an adhesive layer, the bottom of the adhesive layer is covered with release paper, and the area of ​​the release paper is larger than that of the adhesive layer.

[0009] Preferably, a transparent window area is provided in the center of the upper cover, and the side of the upper cover facing the breathable layer is a frosted surface except for the transparent window area, the reverse side of the frosted surface is a printing area, and the side of the lower cover facing the breathable layer is a frosted surface.

[0010] Preferably, a BD test card installation slot penetrating the air permeable layer is provided at the center of the air permeable layer, the BD test card is arranged in the BD test card installation slot, and the BD test card installation slot is coaxially arranged with the transparent window area.

[0011] Preferably, an adhesive layer is provided between the breathable layer and the upper and lower covers.

[0012] Preferably, the adhesive layer is made of high temperature resistant oily acrylic pressure sensitive adhesive, and the upper cover and the lower cover are made of PC, PP or POM.

[0013] Preferably, the breathable layer is cellulose paper, and the cellulose paper has a grammage of 270-300 g / m 2 ; The thickness of the air permeable layer is 0.8-1mm, and the ratio of the air permeable layer width to the radius of the BD test card is 1:1-1.5.

[0014] Preferably, the cross section of the air permeable layer is circular.

[0015] Preferably, a BD test pattern is printed on one side of the BD test card facing the transparent window area, and the BD test pattern covers an area greater than 40% of the upper surface area of ​​the BD test card. A recording area is provided at the bottom of the BD test card, and a folding line is provided on one side of the recording area.

[0016] The beneficial effects of the utility model are:

[0017] 1. The upper cover and the lower cover of the BD test kit provided in the present application are both made of airtight materials, and the steam in and out is controlled only through the air permeable layer, which ensures that resistance is provided for the steam and cold air in and out while avoiding covering the surface of the BD test card. When the test is completed, the test results can be viewed without removing the upper cover, or the upper cover can be directly removed by grasping the handheld part to view the test results. It is convenient to use, saves time and effort, and reduces waste generation;

[0018] 2. The lower cover can be opened by the handle provided on the lower cover, so that the BD test card can be leaked out from the lower cover; the lower cover is folded downward along the folding mechanism, and the BD test card can be detached from the BD test card installation slot without completely removing the lower cover, so that the BD test card can be easily taken out without damaging the BD test card;

[0019] 3. The bottom of the BD test card is provided with an adhesive layer and a release paper. The area of ​​the release paper is larger than the adhesive layer, which is convenient for medical personnel to directly tear off the release paper and stick the BD test card on the sterilization record book, so that medical personnel can record the sterilization results;

[0020] 4. The cross section of the air permeable layer of the BD test bag of the utility model is circular, which can better reflect the steam penetration of the pressure steam sterilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments or the prior art description:

[0022] Figure 1 This is a top view of the portable BD test kit for this application;

[0023] Figure 2 This is a cross-sectional schematic diagram of the portable BD test package for this application;

[0024] Figure 3 This is a schematic diagram of the bottom cover of the portable BD test package for this application;

[0025] Figure 4 This is a schematic diagram of the folding card retrieval of the convenient BD test package for this application (the upper cover is hidden in the figure);

[0026] Figure 5 This is a schematic diagram of the bottom view of the BD test card for this application;

[0027] Figure 6 This is a top view of the BD test card for this application (the adhesive layer and the top cover are hidden);

[0028] Figure 7 This is a schematic diagram of the folding slot on the lower cover of the portable BD test package for this application;

[0029] Figure 8 This is a schematic diagram of the adhesive layer on the lower cover of the portable BD test package for this application;

[0030] Fig. 9 This is a top view schematic diagram of the BD test card provided in Example 3 of the present application.

[0031] Explanation of the reference numerals: 1. Upper cover; 1a. Transparent window area; 1b. Printing area; 1c. Upper cover handle; 2. BD test card; 2a. BD test chart; 3. BD test card installation slot; 4. Lower cover; 4a. Lower cover handle; 5. Breathable layer; 6. Adhesive layer; 7. Folding ridge; 8. Adhesive layer; 9. Release paper; 9a. Release paper handle; 10. Recording area; 10a. Folding line; 11. Folding groove. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] A portable BD test kit provided in the embodiment of the present application is now described:

[0035] Example 1

[0036] like Figure 1 and Figure 2 As shown, a portable BD test kit includes a test kit body and a BD test card 2; the test kit body includes an upper cover 1, a breathable layer 5 and a lower cover 4 connected in sequence, the upper cover 1 and the lower cover 4 are both made of airtight material and the upper cover is made of transparent material, the BD test card 2 is arranged at the center of the breathable layer 5, the upper cover 1 and the lower cover 4 are both provided with a hand-held portion, in this embodiment, the upper cover hand-held portion 1c and the lower cover hand-held portion 4a are respectively arranged on the same plane as the upper cover 1 and the lower cover 4, and a folding mechanism that can fold the lower cover 4 downward is provided at the bottom of the lower cover 4, in this embodiment, the folding mechanism is a folding ridge 7.

[0037] During the test, the BD test pack provided in this embodiment is placed in a pre-vacuum sterilizer, and undergoes a vacuuming process and a steam sterilization simulation process in the pre-vacuum sterilizer. During the vacuuming process, the air in the BD test pack leaves the BD test pack through the air permeable layer 5, and then during the steam sterilization simulation process, high-temperature (134°C) steam penetrates into the BD test pack through the air permeable layer 5. The steam sterilization simulation process lasts for 3.5 minutes. After the test is completed, when the test is completed, there is no need to remove the upper cover 1, that is, to view the test results through the transparent upper cover 1. Medical staff can also hold the upper cover handheld part 1c and the lower cover handheld part 4a respectively, tear them apart to complete the unpacking steps, which is simple and quick. The upper cover 1 and the lower cover 4 are made of airtight materials, which ensures that the steam only passes through the air permeable layer 5, thereby avoiding blocking the BD test card 2 while ensuring the test effect. After unpacking, it can be immediately determined whether there is an insufficient vacuum state in the steam sterilization process of the pre-vacuum sterilizer.

[0038] A folding ridge 7 is provided at the bottom of the lower cover 4, which provides a fulcrum for folding the lower cover 4, so that the staff can fold the lower cover 4 conveniently. After folding, the BD test card 2 can be exposed from the BD test card installation slot 3, and the BD test card 2 can be removed from the BD test package without damaging the BD test card 2.

[0039] Furthermore, if Figure 2 As shown, at least one of the bottom of the BD test card 2 and the bottom of the lower cover is provided with a back adhesive layer 8. In this embodiment, the back adhesive layer 8 is provided at the bottom of the BD test card, and the bottom of the back adhesive layer 8 is covered with a release paper 9. The area of ​​the release paper 9 is larger than the area of ​​the back adhesive layer 8, and the extra part is used as a release paper gripping part 9a. After taking out the BD test card 5 from the BD test card installation slot 6, the medical staff directly tears off the release paper 9 through the release paper gripping part 9a (the part beyond the back adhesive layer 8), and then sticks the BD test card 2 on the sterilization record book, which simplifies the preservation and recording process of the sterilization results.

[0040] Furthermore, if Figure 1 and Figure 2 As shown, a transparent window area 1a is provided in the center of the upper cover, which is convenient for directly observing the sterilization results through the transparent window area 1a, that is, the BD test Figure 2 aDiscoloration.

[0041] The reverse side of the frosted surface is a printing area 1b, where traceability information such as a QR code and a barcode can be printed.

[0042] The surface of the upper cover 1 facing the air permeable layer 5 is frosted except for the transparent window area 1a. The frosted surface design can improve the adhesion strength between the upper cover 1 and the adhesive layer 6, and increase the friction when holding the upper cover holding part 1c.

[0043] The side of the lower cover 4 facing the air permeable layer 5 is a frosted surface. The side of the lower cover 4 facing the air permeable layer 5 is a rough frosted surface, which can improve the adhesion strength with the adhesive layer 6 and provide additional friction between the hand and the lower cover handle 4a when holding the lower cover handle 4a.

[0044] Furthermore, if Figure 1 and Figure 2 As shown, a BD test card installation slot 3 penetrating the air permeable layer is provided at the center of the air permeable layer 5, a BD test card 2 is provided in the BD test card installation slot 3, and the BD test card installation slot 3 is coaxial with the transparent window area 1a.

[0045] The BD test card installation slot 3 passes through the air permeable layer, so that the staff can choose to disassemble the BD test package and take out the BD test card 2 to check the test results, or directly fold the lower cover 4 through the folding mechanism to make the BD test card 2 escape from the BD test package to check the test results. The BD test card installation slot 3 is coaxial with the transparent window area 1a, which makes it convenient for the staff to quickly locate the BD test card through the transparent window area 1a and observe the test results.

[0046] Furthermore, if Figure 2 As shown, an adhesive layer 6 is provided between the air permeable layer 5 and the upper and lower covers. The air permeable layer 5 and the upper and lower covers can be combined in a variety of ways, and the adhesive layer 6 is used to facilitate the staff to remove the upper cover 1 after the test to observe the test results, and to meet the BD test package's requirements for good sealing to the greatest extent.

[0047] Furthermore, if Figure 2 As shown, the adhesive layer 6 is a high-temperature resistant oily acrylic pressure-sensitive adhesive. The sealing of the adhesive layer 6 is enhanced after being heated during the moist heat sterilization process, and the sealing between the breathable layer 5 and the upper cover 1 and the lower cover 4 is further strengthened, ensuring that there are no gaps through which steam can pass. Steam can only enter and exit the BD test package through the main body of the breathable layer 5, thereby ensuring the effectiveness of the BD test package.

[0048] The upper cover 1 and the lower cover 4 are made of PC, PP or POM. According to national standards, the highest test temperature condition of the BD test is 3.5 minutes at 134°C. The safe use temperature of PC, PP or POM materials meets the use requirements, and no harmful substances will be dissolved to pollute the pre-vacuum sterilizer within the test steam heating time range. The upper cover 1 and the lower cover 4 made of PC, PP or POM have sufficient supporting strength at a temperature of 134°C to avoid air leakage caused by shrinkage and deformation of the breathable layer 5 during the sterilization process.

[0049] Furthermore, if Figure 6 As shown, the air permeable layer 5 is cellulose paper. In this embodiment, the cellulose paper has a grammage of 270 g / m 2 The ratio of the thickness and width of the air permeable layer to the radius of the BD test card is 1:1.

[0050] like Figure 6 As shown, the cross section of the air permeable layer 5 is annular. In this embodiment, the air permeable layer 5 is a hollow cylinder. The air permeable layer 5 with an annular cylindrical structure makes the air intake path of the BD test bag more uniform and can accurately reflect the air removal effect of the sterilizer.

[0051] Furthermore, if Figure 1 , Figure 5 and Figure 6 As shown, the BD test card 2 has a BD test printed on one side facing the transparent window area 1a. Figure 2 a, BD test Figure 2 The coverage area of ​​a is greater than 40% of the upper surface area of ​​the BD test card 2. A recording area 10 is provided at the bottom of the BD test card 2. The recording area 10 is provided with a folding line 10a. Figure 2 a. BD test Figure 2 a is the indicator coating scheme. Compared with the grid-like printing arrangement, the densely arranged rectangular coating area of ​​this application is >40%, avoiding visual fatigue.

[0052] A recording area 10 is provided at the bottom of the BD test card 2, and a folding line 10a is provided on one side of the recording area 10. After the sterilization is completed, the BD test card 2 is taken out, folded in half along the folding line 10a on the back of the BD test card 2, and the BD test card 2 is pasted on the sterilization record. Various information used in the sterilization process, including results, date, equipment number, operator, and remarks, can be directly filled in the recording area 10, which is convenient for archiving and traceability. The recording area 10 is located on the back of the BD test card 2, which can avoid occupying the BD test record. Figure 2 a area, and can avoid contact with the ink coated on the surface of the BD test card 2 when recording and writing, which is cleaner and more hygienic.

[0053] Example 2

[0054] like Figure 2 and Figure 8 As shown, the difference from Example 1 is that in this embodiment, the adhesive layer 8 is arranged at the bottom of the lower cover 4, and the bottom of the adhesive layer 8 is covered with a release paper 9, and the area of ​​the release paper 9 is larger than the area of ​​the adhesive layer 8. There is no need to take out the BD test card 2 from the BD test card installation slot 3. The medical staff can directly tear off the release paper 9 through the excess part of the release paper 9 (the part beyond the adhesive layer 8), and then paste the BD test package as a whole on the sterilization record book, which further simplifies the preservation and recording process of the sterilization results.

[0055] Example 3

[0056] like Figure 1 and Fig. 9As shown, the difference from Example 1 is that the ratio of the width of the air permeable layer 5 to the radius of the BD test card 2 is 1:1.5. In this embodiment, the ratio of the diameter of the BD test card 2 to the width of the air permeable layer 5 is increased. Under normal circumstances, the air permeable layer 5 of the same material allows steam to pass through and the performance of cold air in the BD test package is consistent. When the width of the air permeable layer 5 meets the BD experimental requirements and remains unchanged, the area of ​​the BD test card 2 is increased, allowing the BD test card 2 to simulate the actual sterilization effect of larger-sized medical devices to be sterilized, thereby expanding the scope of application of the BD test package 2 proposed in this application. However, the increase in the internal space of the BD test package caused by the excessively large area of ​​the BD test card 2 will increase the overall cost. The ratio of the width of the air permeable layer 5 to the radius of the BD test card 2 of 1:1.5 proposed in this application is sufficient to provide a good simulation effect.

[0057] Example 4

[0058] like Figure 4 and Figure 7 As shown, the difference from Example 1 is that in this embodiment, the folding mechanism is a folding groove 11. When the test is completed, hold the BD test package, pinch the lower cover holding part 4a, tear off the lower cover 4, and then bend the lower cover 4 through the folding groove 11, so that the BD test card 2 can be removed from the BD test card installation slot 3. The design of the folding groove 11 makes it easier to bend the lower cover 4, which is convenient for medical staff to take out the BD test card 2.

[0059] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A portable BD test kit, comprising a test kit body and a BD test card, characterized in that: The test package body comprises an upper cover, an air-permeable layer and a lower cover connected in sequence, the upper cover and the lower cover are both made of airtight materials and the upper cover is made of transparent materials, the BD test card is arranged at the center of the air-permeable layer, the upper cover and the lower cover are both provided with a hand-held portion, and the bottom of the lower cover is provided with a folding mechanism capable of folding the lower cover downward; at least one of the bottom of the BD test card and the bottom of the lower cover is provided with an adhesive layer, the bottom of the adhesive layer is covered with release paper, and the area of ​​the release paper is larger than the area of ​​the adhesive layer; a transparent window area is provided at the center of the upper cover, and the side of the upper cover facing the air-permeable layer is a frosted surface except for the transparent window area, the reverse side of the frosted surface is a printing area, and the side of the lower cover facing the air-permeable layer is a frosted surface; a BD test card installation slot penetrating the air-permeable layer is provided at the center of the air-permeable layer, the BD test card is provided in the BD test card installation slot, and the BD test card installation slot is coaxially arranged with the transparent window area.

2. The portable BD test kit according to claim 1, characterized in that: The folding mechanism is a folding ridge or a folding groove.

3. A portable BD test kit according to any one of claims 1-2, characterized in that: An adhesive layer is arranged between the air permeable layer and the upper and lower covers.

4. A portable BD test kit as claimed in claim 3, characterized in that: The adhesive layer is made of high temperature resistant oily acrylic pressure sensitive adhesive, and the upper cover and the lower cover are made of PC, PP or POM.

5. A portable BD test kit according to any one of claims 1-2, characterized in that: The air permeable layer is cellulose paper, and the cellulose paper has a grammage of 270-300 g / m 2 The thickness of the air permeable layer is 0.8-1 mm, and the ratio of the width of the air permeable layer to the radius of the BD test card is 1:1-1.

5.

6. A portable BD test kit according to any one of claims 1-2, characterized in that: The cross section of the air permeable layer is circular.

7. A portable BD test kit as claimed in claim 1, characterized in that: A BD test diagram is printed on one side of the BD test card facing the transparent window area, and the BD test diagram covers an area greater than 40% of the upper surface area of ​​the BD test card. A recording area is provided at the bottom of the BD test card, and a folding line is provided on one side of the recording area.

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