Universal hydrogen peroxide sterilization chemical verification device
By designing validation tube assemblies that can adapt to different lengths and rotating the inner cylinder, the problem that existing devices cannot adapt to different instrument lumens has been solved, achieving efficient and accurate sterilization validation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHINVA MEDICAL INSTR CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-22
Smart Images
Figure CN224265648U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of sterilization verification devices, specifically relating to a general-purpose hydrogen peroxide sterilization chemical verification device. Background Technology
[0002] Hydrogen peroxide sterilization primarily relies on its strong oxidizing properties to destroy key structures of microorganisms, such as cell membranes, proteins, and DNA. After sterilization, hydrogen peroxide decomposes into water and oxygen, leaving no harmful residues. This makes it suitable for environments sensitive to residues. Its broad-spectrum, high-efficiency, rapid-acting, and environmentally friendly characteristics have led to its widespread application in sterilization and disinfection in medical devices, the food industry, and pharmaceuticals. A chemical validation device is used to monitor the sterilization quality of an entire batch of sterilization. This requires a representative simulation device; the sterilization results of this device represent the overall sterilization outcome.
[0003] Existing hydrogen peroxide sterilization validation devices have fixed lumen lengths and structures, which cannot adapt to instruments with different lengths and complexities. For long-lumen instruments (such as endoscopes), devices with too short lumens may not be able to detect whether the sterilizing agent has reached the depth of the lumen, while for medium-length-lumen instruments, devices with too long lumens may cause the indicator to fail to change color properly, affecting the accuracy of validation. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a universal hydrogen peroxide sterilization chemical verification device that can adapt to instruments with different lumen lengths and ensure the accuracy of verification.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a universal hydrogen peroxide sterilization chemical verification device, comprising a tube body, a sealing plug, and at least two sets of verification tube groups of different lengths. The tube body includes an inner cylinder and an outer shell. One end of the inner cylinder is open. The sealing plug is sealed and detachably installed at the open end of the inner cylinder. The outer shell is tightly and rotatably fitted onto the outside of the inner cylinder. The verification tube groups are fixedly connected to the outer shell. Each set of verification tube groups includes two thin tubes of the same length, which communicate with the inside of the outer shell. The two thin tubes are respectively connected to the two ends of the outer shell. A channel is provided at each end of the inner cylinder, and the two channels correspond to the positions of the two thin tubes of each set of verification tube groups on the outer shell.
[0006] Preferably, a rotating handle is fixedly provided at the other end of the inner cylinder, and the rotating handle is fixedly connected to the other end of the inner cylinder through a rotating shaft.
[0007] Preferably, the other end of the inner cylinder is closed, while both ends of the outer shell are open.
[0008] Preferably, a boss is provided on the other side of the inner cylinder, and the other end of the outer shell is pressed against the upper side of the boss, and the outer diameter of the boss is the same as the outer diameter of the outer shell, and one end of the outer shell is flush with one end of the inner cylinder.
[0009] Preferably, a sealing gasket is provided between the sealing plug and the tube body.
[0010] Preferably, an external thread is provided at one end of the sealing plug, and an internal thread is provided on the inner wall at one end of the tube body, with the sealing plug threadedly connected to one end of the tube body.
[0011] Preferably, the thin tube is a hollow tube made of polytetrafluoroethylene.
[0012] Preferably, the tube body is made of polytetrafluoroethylene.
[0013] Preferably, the two thin tubes in each group of thin tubes are arranged symmetrically on the outer side of the outer shell along the radial direction of the outer shell.
[0014] Preferably, it includes two sets of thin tubes, namely a set of medium-length tubes and a set of long tubes, which are evenly distributed on the outer side of the shell at 180°.
[0015] Compared with existing technologies, the above technical solution has the following beneficial effects:
[0016] This invention includes at least two sets of verification tubes of different lengths. Since hydrogen peroxide sterilization requires no blind ends, each verification tube set includes two thin tubes connected to both ends of the tube body. The outer shell is tightly and rotatably fitted onto the outside of the inner cylinder. A channel is provided at each end of the inner cylinder, corresponding to the positions of the thin tubes at both ends of the outer shell. Rotating the inner cylinder aligns the channel with the corresponding set of thin tubes, thus connecting the set of thin tubes to the inner cavity of the inner cylinder, allowing for the verification of sterilization tests on instruments of that length. This invention is adaptable to instruments of different lengths and structures, such as long instruments like endoscopes and laparoscopes, as well as medium-length instruments. It eliminates the need to change verification devices for instruments of different lengths, simplifying the operation process, improving verification efficiency and accuracy, and reducing the workload of operators. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a cross-sectional view of the present invention.
[0019] Figure 3 This is a partial sectional view of the present invention.
[0020] Among them: 1. Sealing plug; 2. Tube body; 3. Thin tube 301; Medium-length tube 302; Long tube; 4. Rotating shaft; 5. Rotating handle; 6. Sealing gasket; 7. Inner cylinder; 8. Outer shell; 9. Upper channel; 10. Lower channel; 11. Boss. Detailed Implementation
[0021] Figures 1-3 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-3 The present invention will be further described below.
[0022] like Figures 1-2 As shown, this utility model discloses a universal hydrogen peroxide sterilization chemical verification device, comprising a tube body 2, a sealing plug 1, and at least two sets of verification tubes of different lengths. One end of the tube body 2 is open, and the sealing plug 1 is sealed and detachably installed at the open end of the tube body 2, preventing the sterilizing agent from penetrating the tube body 2 and the sealing plug 1. An indicator is placed inside the tube body 1. The verification device is placed in a sterilization device for sterilization, and the color of the indicator is observed to determine whether sterilization is complete. The tube body 2 includes an inner cylinder 7 and an outer shell 8. One end of the inner cylinder 7 is open, and the outer shell 8 is tightly and rotatably fitted onto the outside of the inner cylinder 7. The verification tube sets are fixedly connected to the outer shell 8. Each set... Each verification tube set includes two thin tubes 3 of the same length, and the thin tubes 3 are connected to the inside of the outer shell 8. The thin tubes 3 simulate the external tubing of tubular instruments. Since hydrogen peroxide sterilization requires no blind ends, each set of thin tubes 3 includes two thin tubes 3, which are respectively connected to the two ends of the outer shell 8. Both thin tubes 3 in each set of thin tubes 3 can be connected to the inner cylinder 7. There is a channel at each end of the inner cylinder 7, and the two channels are respectively set at the positions of the thin tubes 3 at the two ends of the outer shell 8. By rotating the inner cylinder 7, the channel on the inner cylinder 7 is aligned with the corresponding set of thin tubes 3, so that the set of thin tubes 3 is connected to the inner cavity of the inner cylinder 7, and the sterilization of the tubular instruments of that length can be verified.
[0023] like Figure 3 As shown, in this embodiment, the device includes two sets of thin tubes 3, namely a set of medium-length tubes 301 and a set of long tubes 302. The two sets of thin tubes 3 are evenly distributed at 180° on the outside of the outer shell 8, and the two medium-length tubes 301 or the two long tubes 302 are symmetrically arranged on the outside of the outer shell 8 along the radial direction. An upper channel 9 and a lower channel 10 are correspondingly provided on the inner cylinder 7. Here, "upper" refers to the open end of the tube body 2. The upper channel 9 corresponds to the upper end of the medium-length tubes 301 and long tubes 302, and the lower channel 10 corresponds to the lower end of the medium-length tubes 301 and long tubes 302. In this embodiment, the medium-length tube 301 is 0.5m long and the long tube 302 is 1m long. In other embodiments, the lengths of the medium-length tubes 301 and long tubes 302 can be set according to specific circumstances.
[0024] In this embodiment, the lower end of the inner cylinder 7 is closed, while both ends of the outer shell 8 are open. A boss 11 is provided at the bottom of the inner cylinder 7, and the lower end of the outer shell 8 is pressed against the upper side of the boss 11. The outer diameter of the boss 11 is the same as the outer diameter of the outer shell 8. The upper end of the outer shell 8 is flush with the upper end of the inner cylinder 7. Both the inner cylinder 7 and the outer shell 8 are made of transparent or semi-transparent material. A rotating handle 5 is fixedly provided at the lower end of the inner cylinder 7. The rotating handle 5 is fixedly connected to the lower end of the inner cylinder 7 through a rotating shaft 4. By rotating the rotating handle 5, the inner cylinder 7 is rotated, thereby adjusting the thin tube 3 corresponding to the channel.
[0025] An external thread is provided at the lower end of the sealing plug 1, and an internal thread is provided on the inner wall of the upper end of the tube body 2. The sealing plug 1 is threadedly connected to the upper end of the tube body 2. In order to ensure the sealing performance of the sealing plug 1, a sealing gasket 6 is also provided between the sealing plug 1 and the tube body 2 to further improve the sealing effect. In this embodiment, the tube body 2 is made of polytetrafluoroethylene, and the sterilizing agent cannot pass through the tube body 2 and the sealing plug 1. The thin tube 3 is a hollow tube made of polytetrafluoroethylene, and the sterilizing agent cannot pass through the thin tube 3 either. It can only enter the inner cavity of the tube body 2 through the thin tube 3 for sterilization.
[0026] When verifying the sterilization effect of medium-length and long-tube instruments, this invention places an indicator inside the tube body 2, rotates the inner cylinder 7 by turning the handle 5, aligning the channels on the inner cylinder 7 with the medium-length and long-tube 301, wherein the upper channel 9 connects with the upper end of the medium-length and long-tube 301, and the lower channel 10 connects with the lower end of the medium-length and long-tube 301. The device is then placed in a sterilization device for sterilization, and the color change of the indicator is observed. When verifying the sterilization effect of long-tube instruments, the inner cylinder 7 is rotated to align the channels with the long tube 302, wherein the upper channel 9 connects with the upper end of the long tube 302, and the lower channel 10 connects with the lower end of the long tube 302. The device is then placed in a sterilization device for sterilization, and the color change of the indicator is observed. This invention can adapt to tubular instruments of different lengths and structures, such as long tubular instruments like endoscopes and laparoscopes, as well as medium-length tubular instruments. It eliminates the need to change different verification devices for different lengths of tubular instruments, simplifies the operation process, improves the efficiency and accuracy of verification, and reduces the labor intensity of operators.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A universal hydrogen peroxide sterilization chemical verification device, characterized in that: The tube includes a tube body (2), a sealing plug (1), and at least two sets of verification tubes of different lengths. The tube body (2) includes an inner cylinder (7) and an outer shell (8). One end of the inner cylinder (7) is open. The sealing plug (1) is sealed and detachably installed at the open end of the inner cylinder (7). The outer shell (8) is tightly and rotatably fitted on the outside of the inner cylinder (7). The verification tubes are fixedly connected to the outer shell (8). Each set of verification tubes includes two thin tubes (3) of the same length. The thin tubes (3) are connected to the inside of the outer shell (8). The two thin tubes (3) are respectively connected to the two ends of the outer shell (8). There is a channel at each end of the inner cylinder (7). The two channels are respectively located at the positions of the two thin tubes (3) of each set of verification tubes on the outer shell (8).
2. The universal hydrogen peroxide sterilization chemical verification device according to claim 1, characterized in that: A rotating handle (5) is fixedly installed at the other end of the inner cylinder (7), and the rotating handle (5) is fixedly connected to the other end of the inner cylinder (7) through a rotating shaft (4).
3. The universal hydrogen peroxide sterilization chemical verification device according to claim 1, characterized in that: The inner cylinder (7) is closed at one end, while the outer shell (8) is open at both ends.
4. The universal hydrogen peroxide sterilization chemical verification device according to claim 3, characterized in that: A boss (11) is provided on the other side of the inner cylinder (7), and the other end of the outer shell (8) is pressed against the upper side of the boss (11). The outer diameter of the boss (11) is the same as the outer diameter of the outer shell (8), and one end of the outer shell (8) is flush with one end of the inner cylinder (7).
5. A universal hydrogen peroxide sterilization chemical verification device according to claim 1, characterized in that: A sealing gasket (6) is provided between the sealing plug (1) and the tube body (2).
6. The universal hydrogen peroxide sterilization chemical verification device according to claim 1, characterized in that: An external thread is provided at one end of the sealing plug (1), and an internal thread is provided on the inner wall of one end of the tube body (2). The sealing plug (1) is threadedly connected to one end of the tube body (2).
7. A universal hydrogen peroxide sterilization chemical verification device according to claim 1, characterized in that: The thin tube (3) is a hollow tube made of polytetrafluoroethylene.
8. The universal hydrogen peroxide sterilization chemical verification device according to claim 1, characterized in that: The tube body (2) is made of polytetrafluoroethylene.
9. A universal hydrogen peroxide sterilization chemical verification device according to claim 1, characterized in that: Two thin tubes (3) in each group of thin tubes (3) are arranged symmetrically on the outside of the outer shell (8) along the radial direction of the outer shell (8).
10. A universal hydrogen peroxide sterilization chemical verification device according to claim 1, characterized in that: It includes two sets of thin tubes (3), namely a set of medium-length tubes (301) and a set of long tubes (302), which are evenly distributed at 180° on the outside of the outer shell (8).