Storage device for prolonging service life of ethylene oxide reference substance
By designing an ethylene oxide storage device with components such as a container bottle and a cooling base, the problems of volatile and wasteful ethylene oxide reference standards were solved, resulting in extended shelf life and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO PURUISEN MEDICINE SCI & TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-12
Smart Images
Figure CN224225749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of laboratory storage equipment for ethylene oxide, and in particular to a storage device for extending the shelf life of ethylene oxide reference standards. Background Technology
[0002] Currently, medical devices are sterilized using ethylene oxide. Ethylene oxide is a highly toxic substance, with an allowable concentration of 100 PPM in the air. Inhalation of ethylene oxide can cause anesthetic poisoning and it is readily absorbed into the bloodstream, potentially causing multi-organ damage, primarily affecting the respiratory and nervous systems, in animals and humans. Therefore, most medical devices sterilized with ethylene oxide require residual ethylene oxide testing. Ethylene oxide has a boiling point of 10.7℃ and is highly volatile, greatly affected by ambient temperature. Therefore, the expiration date of the opened ethylene oxide reference standard is the day it is opened; any unused portion cannot be reused the following day.
[0003] The existing technology has at least the following problems: the domestic ethylene oxide reference standard is inferior to the imported one, while the imported ethylene oxide reference standard is expensive. Using only one or a few sets of linear solutions each time will waste a large amount of the remaining reference standard. In addition, the linear solution needs to be prepared each time, resulting in low operating efficiency. Utility Model Content
[0004] This invention addresses the shortcomings of existing technologies by developing a storage device for extending the shelf life of ethylene oxide reference standards. This invention not only facilitates the use of ethylene oxide reference standards but also reduces volatilization and waste, effectively improving the storage effect of ethylene oxide reference standards.
[0005] The technical solution of this utility model to solve the technical problem is as follows: a storage device for extending the shelf life of ethylene oxide reference standard, including a container bottle and a cooling base. The top of the container bottle is provided with a top cover, the bottom of the top cover is provided with a liquid extraction tube, the top of the liquid extraction tube is provided with a sealing cap, the top of the cooling base is provided with a slot, and the container bottle is placed in the slot.
[0006] As an optimization, the bottom of the container is higher around the edges and lower in the center. This facilitates the accumulation of ethylene oxide reference standards and avoids waste.
[0007] As an optimization, the sampling tube is a conical tube with a larger diameter at the top than at the bottom. This facilitates pipette insertion and reduces the contact area between the ethylene oxide reference standard and the external environment.
[0008] As an optimization, the cooling base has an internal receiving cavity, and the top of the cooling base has a filling port that communicates with the receiving cavity, with a sealing cap on the filling port. By setting up the receiving cavity and the sealing cap, a refrigerant can be placed inside, keeping the receiving bottle and ethylene oxide reference standard at a low temperature and avoiding waste caused by evaporation.
[0009] As an optimization, a gasket is provided inside the slot, and the container bottle is placed on the gasket. By setting the gasket, the container bottle can be protected.
[0010] As an optimization, several sets of gaskets are evenly distributed around the perimeter of the gasket, and these gaskets are positioned between the container bottle and the cooling base. By using these gaskets, the container bottle can be protected without affecting the cooling effect of the refrigerant on the container bottle.
[0011] As an optimization, an electronic thermometer is also included, with its probe positioned between the container and the cooling base. This electronic thermometer monitors the temperature of the container and triggers an alarm if the temperature becomes too high, alerting the experimenter to replace the cooling base.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] The container can hold ethylene oxide reference standards. The top cap allows for opening and closing of the container, facilitating the pouring of the ethylene oxide reference standards through a larger opening. The sealing cap, combined with the top cap, seals the dispensing tube, allowing for easy measurement of the ethylene oxide reference standards through a smaller opening, reducing evaporation. The dispensing tube can be inserted into the ethylene oxide reference standards, allowing only the contents to contact the outside environment, further reducing evaporation and facilitating pipette insertion. The cooling base and slot enclose the container, keeping both the container and the ethylene oxide reference standards at a low temperature to prevent evaporation and waste. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the internal structure of one embodiment of the present invention.
[0015] Figure 2 This is a schematic diagram of the structure of the gasket and gasket strip in one embodiment of the present invention.
[0016] In the diagram: 1. Container bottle; 2. Cooling base; 3. Top cover; 4. Liquid extraction tube; 5. Sealing plug; 6. Slot; 7. Container cavity; 8. Sealing cap; 9. Gasket; 10. Gasket strip; 11. Electronic thermometer. Detailed Implementation
[0017] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.
[0018] Example 1
[0019] Figure 1 and Figure 2 As one embodiment of this utility model, such as Figure 1 and Figure 2As shown, a storage device for extending the shelf life of ethylene oxide reference standard includes a container bottle 1 and a cooling base 2. The top of the container bottle 1 is provided with a top cover 3 that is detachable by threads. A liquid extraction tube 4 is provided at the center of the bottom of the top cover 3. A sealing cap 5 is provided at the top of the liquid extraction tube 4. The top of the cooling base 2 is provided with a slot 6, and the container bottle 1 is placed in the slot 6.
[0020] The container bottle 1 can hold ethylene oxide reference standard. The top cap 3 can be opened or closed, facilitating the pouring of the ethylene oxide reference standard by opening a larger diameter opening. The sealing cap 5 can close the dispensing tube 4, thus sealing the container bottle 1 in conjunction with the top cap 3. This allows for easy dispensing of the ethylene oxide reference standard by opening a smaller diameter opening, reducing evaporation and improving the linear success rate. The dispensing tube 4 can be inserted into the ethylene oxide reference standard, allowing only the ethylene oxide reference standard inside the tube to come into contact with the outside environment, reducing evaporation and facilitating the insertion of a pipette. The cooling base 2 and slot 6 can enclose the container bottle 1, keeping the container bottle 1 and the ethylene oxide reference standard at a low temperature, preventing evaporation and waste, extending the shelf life, saving significant costs, and reducing the waste of ethylene oxide reference standard.
[0021] like Figure 1 As shown, the bottom of container 1 is higher around the edges and lower in the center. This facilitates the accumulation of ethylene oxide reference standard and avoids waste.
[0022] like Figure 1 As shown, the sampling tube 4 is a conical tube, with the diameter of the top being larger than the diameter of the bottom. This facilitates the insertion of a pipette and reduces the contact area between the ethylene oxide reference standard and the external environment.
[0023] like Figure 1 As shown, the cooling base 2 has an internal receiving cavity 7, and the top of the cooling base 2 has a filling port communicating with the receiving cavity 7. A sealing cap 8 is provided on the filling port, and a cold storage agent is provided inside the receiving cavity 7. By setting up the receiving cavity 7 and the sealing cap 8, the cold storage agent can be placed to keep the receiving bottle 1 and the ethylene oxide reference standard at a low temperature, avoiding evaporation and waste.
[0024] like Figure 1 As shown, a gasket 9 is provided inside the slot 6, and the container bottle 1 is placed on the gasket 9. By providing the gasket 9, the container bottle 1 can be protected.
[0025] like Figure 1 and Figure 2 As shown, several sets of gaskets 10 are evenly arranged around the gasket 9, and the gaskets 10 are positioned between the container bottle 1 and the cooling base 2. By setting the gaskets 10, the container bottle 1 can be protected without affecting the cooling effect of the refrigerant on the container bottle 1.
[0026] like Figure 1As shown, it also includes an electronic thermometer 11, the probe of which is positioned between the container 1 and the cooling base 2. By setting up the electronic thermometer 11, the temperature of the container 1 can be monitored, and an alarm will be triggered if the temperature is too high, reminding the experimenter to replace the cooling base 2 or place the cooling base 2 and the container 1 in a refrigerator for freezing and cooling.
[0027] In use, the cooling base 2 is pre-frozen, and then the container bottle 1 is inserted into the slot 6. With the help of the gasket 9 and the gasket strip 10, the cooling base 2 can cool the container bottle 1 without direct contact. The probe of the electronic thermometer 11 is inserted into the gap between two adjacent sets of gasket strips 10 to monitor the temperature of the container bottle 1. When the temperature of the container bottle 1 drops to a suitable level, the top cover 3 is opened, and the ethylene oxide reference standard is poured into the container bottle 1. Then, the top cover 3 is tightened. When using the ethylene oxide reference standard, the experimenter opens the sealing cap 5. With the help of the dispensing tube 4, only the ethylene oxide reference standard inside the tube can come into contact with the outside environment, reducing evaporation. The operator inserts the pipette tip into the dispensing tube 4 to dispense the ethylene oxide reference standard. After dispensing, the sealing cap 5 is tightened. This invention facilitates the use of ethylene oxide reference standards, reduces evaporation and waste, and effectively improves the preservation effect of ethylene oxide reference standards.
[0028] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
Claims
1. A storage device for extending the shelf life of ethylene oxide reference standards, comprising a container (1), characterized in that: It also includes a cooling base (2), a top cover (3) on the top of the container (1), a liquid extraction tube (4) at the bottom of the top cover (3), a sealing cap (5) on the top of the liquid extraction tube (4), a slot (6) on the top of the cooling base (2), and the container (1) is placed in the slot (6).
2. The storage device for extending the shelf life of ethylene oxide reference standard according to claim 1, characterized in that: The bottom of the container (1) is high around the edges and low in the center.
3. The storage device for extending the shelf life of ethylene oxide reference standard according to claim 2, characterized in that: The liquid collection tube (4) is a conical tube, and the diameter of the top of the liquid collection tube (4) is larger than the diameter of the bottom.
4. The storage device for extending the shelf life of ethylene oxide reference standard according to claim 1, characterized in that: The cooling base (2) has an internal cavity (7) and a filling port that communicates with the cavity (7) on the top of the cooling base (2). A sealing cap (8) is provided on the filling port.
5. The storage device for extending the shelf life of ethylene oxide reference standard according to claim 1, characterized in that: A gasket (9) is provided inside the slot (6), and the bottle (1) is placed on the gasket (9).
6. The storage device for extending the shelf life of ethylene oxide reference standard according to claim 5, characterized in that: Several sets of pads (10) are evenly arranged around the pad (9), and the pads (10) are placed between the container bottle (1) and the cooling base (2).
7. The storage device for extending the shelf life of ethylene oxide reference standard according to any one of claims 1 to 6, characterized in that: It also includes an electronic thermometer (11), the probe of which is positioned between the container (1) and the cooling base (2).