Hydrogen peroxide plasma low-temperature sterilizer
By using a baffle structure in the hydrogen peroxide plasma low-temperature sterilizer, the problem of light obstruction by the instruments to be sterilized was solved, enabling accurate monitoring of the hydrogen peroxide plasma concentration and improving the sterilization success rate.
Patent Information
- Application Number
- CN202520031900.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing hydrogen peroxide plasma low-temperature sterilizers fail to accurately monitor hydrogen peroxide plasma concentration during sterilization because the medical devices being sterilized can easily block the light from the ultraviolet monitoring lamp.
Design a hydrogen peroxide plasma low-temperature sterilizer with a baffle structure. The diameter of the baffle is larger than the diameter of the light source emitting end and receiving end. Light-transmitting holes and through holes are opened on the outer circumference of the baffle. The light-transmitting holes penetrate the baffle in the vertical direction to ensure that light can pass through and monitor the concentration of hydrogen peroxide plasma in the sterilization chamber. At the same time, the baffle blocks the instruments to be sterilized to avoid blocking the light.
It improved the sterilization success rate, ensured accurate monitoring of hydrogen peroxide plasma concentration, and reduced the risk of sterilization failure.
Smart Images
Figure CN223760140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a hydrogen peroxide plasma low-temperature sterilizer. Background Technology
[0002] The hydrogen peroxide plasma low-temperature sterilizer works by diffusing hydrogen peroxide vapor into the sterilization chamber, then electromagnetically exciting the hydrogen peroxide molecules into a low-temperature plasma state, thereby sterilizing the medical devices placed inside. Using hydrogen peroxide plasma vapor allows for safe and rapid sterilization of medical devices and materials without leaving any toxic residues. During operation, the concentration of hydrogen peroxide low-temperature plasma needs to be monitored; excessively high or low concentrations will trigger an alarm system, causing sterilization failure.
[0003] The hydrogen peroxide plasma low-temperature sterilizer contains a detector lens for monitoring hydrogen peroxide concentration and an ultraviolet lamp for monitoring hydrogen peroxide concentration. During sterilization, the sterilizer requires vacuuming, which can cause the medical devices to shake. This can cause the devices to block the light emitted by the ultraviolet lamp, preventing the light from reaching the detector lens and thus hindering the monitoring of hydrogen peroxide concentration, leading to sterilization failure. Utility Model Content
[0004] The purpose of this invention is to provide a hydrogen peroxide plasma low-temperature sterilizer, which aims to solve the technical problem that existing hydrogen peroxide plasma low-temperature sterilizers are prone to sterilization failure.
[0005] This application provides a hydrogen peroxide plasma low-temperature sterilizer, including a sterilization chamber, a light source emitting end, a light source receiving end, and a baffle. The light source emitting end and the light source receiving end are respectively disposed on the upper and lower walls of the sterilization chamber and are arranged opposite to each other. The baffle is disposed between the light source emitting end and the light source receiving end. The diameter of the baffle is larger than the diameter of both the light source emitting end and the light source receiving end. The baffle has a light-transmitting hole that penetrates the upper and lower surfaces of the baffle in the vertical direction. The outer peripheral surface of the baffle has several through holes communicating with the light-transmitting hole.
[0006] The beneficial effects of the hydrogen peroxide plasma low-temperature sterilizer provided by this utility model are as follows: the light source emitting end is used to emit light, the light source receiving end is used to receive light from the light source emitting end, and the light-transmitting hole on the baffle is used for light to pass through. A through hole communicating with the light-transmitting hole is opened on the outer circumference of the baffle, allowing hydrogen peroxide plasma in the sterilization chamber to enter the light-transmitting hole through the through hole, thereby enabling the hydrogen peroxide plasma low-temperature sterilizer to monitor the concentration of hydrogen peroxide. By configuring the diameter of the baffle to be larger than the diameter of both the light source emitting end and the light source receiving end, the baffle can block the medical instruments to be sterilized placed in the sterilization chamber from the light, thereby improving the sterilization success rate of this hydrogen peroxide plasma low-temperature sterilizer.
[0007] Optionally, both the light source emitting end and the light source receiving end are fully exposed through the light-transmitting hole.
[0008] Optionally, the stop is cylindrical.
[0009] Optionally, the stop can be made of aluminum or stainless steel.
[0010] Optionally, the lower end of the baffle is provided with a base, and a limiting member is provided on the base. The limiting member passes through the upper and lower surfaces of the base and is configured to move in the vertical direction. The lower wall of the sterilization chamber is provided with a limiting hole for accommodating the limiting member.
[0011] Optionally, the limiting component includes a head and a rod body connected together. The diameter of the head is larger than the diameter of the rod body. The end of the rod body near the head is provided with an external thread. The base is provided with a threaded hole that is adapted to connect with the external thread. The limiting hole is used to accommodate the rod body.
[0012] Optionally, the end of the shaft furthest from the head is provided with a first chamfer.
[0013] Optionally, the head is provided with several anti-slip stripes, all of which are arranged at intervals along the circumference of the head and extend along the axial direction of the head.
[0014] Optionally, the lower wall of the sterilization chamber is provided with a positioning groove for positioning the base, the sterilization chamber has an opening, and one end of the positioning groove near the opening extends to the opening.
[0015] Optionally, the positioning groove has a second chamfer at one end of the opening. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the structure of the hydrogen peroxide plasma low-temperature sterilizer provided in this embodiment of the utility model;
[0018] Figure 2 A cross-sectional view of a hydrogen peroxide plasma low-temperature sterilizer provided in an embodiment of this utility model;
[0019] Figure 3 An exploded view of the base and limiting member provided in an embodiment of this utility model.
[0020] The following are the labeling elements in the figure:
[0021] 100. Hydrogen peroxide plasma low-temperature sterilizer; 10. Sterilization chamber; 20. Light source emission end;
[0022] 30. Light source receiver; 40. Stop; 50. Base;
[0023] 11. Limiting hole; 12. Positioning groove; 121. Second chamfer;
[0024] 41. Light-transmitting hole; 42. Through hole; 51. Limiting component;
[0025] 52. Threaded hole; 511. Head; 512. Shaft;
[0026] 5121, First chamfer. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0028] Throughout this specification, references to "an embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.
[0029] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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 device or element 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.
[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] Please refer to Figures 1 to 3 The hydrogen peroxide plasma low-temperature sterilizer 100 in the embodiments of this utility model will now be described.
[0033] Please refer to Figures 1 to 3 This application provides a hydrogen peroxide plasma low-temperature sterilizer 100, which includes a sterilization chamber 10, a light source emitting end 20, a light source receiving end 30, and a baffle 40. The light source emitting end 20 and the light source receiving end 30 are respectively disposed on the upper and lower walls of the sterilization chamber 10 and are arranged opposite to each other. The baffle 40 is disposed between the light source emitting end 20 and the light source receiving end 30. The diameter of the baffle 40 is larger than the diameter of the light source emitting end 20 and the diameter of the light source receiving end 30. The baffle 40 has a light-transmitting hole 41 that penetrates the upper and lower surfaces of the baffle 40 in the vertical direction. The outer peripheral surface of the baffle 40 has a plurality of through holes 42 that communicate with the light-transmitting hole 41.
[0034] The light source emitting end 20 emits light, and the light source receiving end 30 receives the light from the light source emitting end 20. A light-transmitting hole 41 on the baffle 40 allows light to pass through. A through hole 42 communicating with the light-transmitting hole 41 is formed on the outer peripheral surface of the baffle 40, allowing hydrogen peroxide plasma in the sterilization chamber 10 to enter the light-transmitting hole 41 through the through hole 42, thereby enabling the hydrogen peroxide plasma low-temperature sterilizer 100 to monitor the concentration of hydrogen peroxide. By configuring the diameter of the baffle 40 to be larger than the diameters of the light source emitting end 20 and the light source receiving end 30, the baffle 40 can block the medical instruments to be sterilized placed in the sterilization chamber 10 from the light, thereby improving the sterilization success rate of the hydrogen peroxide plasma low-temperature sterilizer 100.
[0035] The baffle 40 has a mesh structure, and the through hole 42 can be circular, triangular, polygonal or other irregular shapes, as long as hydrogen peroxide can pass through, and is not limited here.
[0036] In some embodiments, the thickness of the stop 40 is less than 2 mm.
[0037] It is understandable that the light source emitting end 20 is the ultraviolet lamp for monitoring the concentration of hydrogen peroxide low-temperature plasma mentioned in the background art, and the light source receiving end 30 is the detector lens of the hydrogen peroxide monitor mentioned in the background art.
[0038] In another embodiment of this application, both the light source emitting end 20 and the light source receiving end 30 are fully exposed to the light-transmitting hole 41. Specifically, the diameters of both the light source emitting end 20 and the light source receiving end 30 are smaller than the diameter of the light-transmitting hole 41. This prevents the baffle 40 from blocking the light emitted from the light source emitting end 20, thereby improving the sterilization success rate of the hydrogen peroxide plasma low-temperature sterilizer 100.
[0039] In another embodiment of this application, the stop 40 is cylindrical. This design prevents the medical device to be sterilized from colliding with sharp edges, reducing the degree of damage to the medical device.
[0040] Of course, in some other embodiments, the cross-section of the stop 40 may also be square, triangular or other polygonal, which is not limited here.
[0041] In another embodiment of this application, the baffle 40 is made of aluminum or stainless steel. Aluminum or stainless steel will not be corroded by hydrogen peroxide and will not adsorb hydrogen peroxide, thereby increasing the service life of the baffle 40 and improving the sterilization success rate of the hydrogen peroxide plasma low-temperature sterilizer 100.
[0042] In another embodiment of this application, please refer to Figure 1 and Figure 2A base 50 is provided at the lower end of the baffle 40, and a limiting member 51 is provided on the base 50. The limiting member 51 penetrates the upper and lower surfaces of the base 50 and is configured to move in the vertical direction. A limiting hole 11 for accommodating the limiting member 51 is provided on the lower wall of the sterilization chamber 10. After the limiting member 51 is placed between the light source emitting end 20 and the light source receiving end 30, the limiting member 51 is adjusted so that it moves downward and inserts into the limiting hole 11. Through the limiting effect of the limiting member 51 and the limiting hole 11, the baffle 40 will not shift too far after the medical device to be sterilized comes into contact with it, thus preventing the baffle 40 from blocking the light emitted from the light source emitting end 20. This helps to improve the sterilization success rate of the hydrogen peroxide plasma low-temperature sterilizer 100.
[0043] In another embodiment of this application, please refer to Figure 3 The limiting member 51 includes a head 511 and a rod body 512 connected together. The diameter of the head 511 is larger than the diameter of the rod body 512. The end of the rod body 512 near the head 511 has an external thread. The base 50 has a threaded hole 52 adapted to the external thread. The limiting hole 11 is used to accommodate the rod body 512. After the stop 40 is placed, the head 511 is screwed, causing the rod body 512 to gradually approach the limiting hole 11 and finally insert into it. Using this technical solution, on the one hand, the limiting member 51 is not easily separated from the base 50, reducing the possibility of the limiting member 51 being lost. On the other hand, this structure is simple to implement and convenient to operate.
[0044] Optionally, the diameter of the rod body 512 is 0.2 to 0.5 mm larger than the diameter of the limiting hole 11, so as to facilitate the insertion of the limiting member 51 into the limiting hole 11.
[0045] In another embodiment of this application, please refer to Figures 1 to 3 The end of the rod 512 away from the head 511 is provided with a first chamfer 5121. This design allows the limiting member 51 to be easily inserted into the limiting hole 11.
[0046] In another embodiment of this application, the head 511 is provided with a plurality of anti-slip stripes, all of which are arranged at intervals along the circumference of the head 511 and extend along the axial direction of the head 511. This arrangement facilitates the operator in turning the limiting member 51 and can effectively improve the installation efficiency of the stop member 40.
[0047] In another embodiment of this application, please refer to Figure 1 The lower wall of the sterilization chamber 10 is provided with a positioning groove 12 for positioning the base 50. The sterilization chamber 10 has an opening, and the end of the positioning groove 12 near the opening extends to the opening. The positioning groove 12 can improve the installation accuracy of the stop 40 and reduce the obstruction of the light emitted from the light source emitting end 20 by the stop 40, which is beneficial to improving the sterilization success rate of this hydrogen peroxide plasma low-temperature sterilizer 100.
[0048] In another embodiment of this application, please refer to Figure 1 The positioning groove 12 has a second chamfer 121 at one end of the opening. This design facilitates the insertion of the base 50 into the positioning groove 12, which helps to improve the installation efficiency of the stop 40.
[0049] Understandably, a base 50 can also be provided at the upper end of the baffle 40, and a positioning groove 12 can also be provided on the upper wall of the sterilization chamber 10. The base 50 at the upper end of the baffle 40 can also be provided with a limiting member 51, and the upper wall of the sterilization chamber 10 can also be provided with a limiting hole 11. In this way, the offset distance of the baffle 40 can be further reduced, and the sterilization success rate of the hydrogen peroxide plasma low-temperature sterilizer 100 can be further improved.
[0050] In some embodiments, the total height of the baffle and the base is slightly greater than the height of the sterilization chamber, with a height difference of approximately 0.1 to 0.2 mm, so that the baffle and the base can be secured within the sterilization chamber. Compared to setting a limiting element on the base, this solution has a simpler structure and is easier to operate.
[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hydrogen peroxide plasma low temperature sterilizer characterized by: The application relates to a sterilization chamber, which comprises a sterilization chamber (10), a light source emitting end (20), a light source receiving end (30) and a blocking piece (40), wherein the light source emitting end (20) and the light source receiving end (30) are arranged on the upper and lower walls of the sterilization chamber (10) respectively and oppositely, the blocking piece (40) is arranged between the light source emitting end (20) and the light source receiving end (30), the diameter of the blocking piece (40) is larger than the diameters of the light source emitting end (20) and the light source receiving end (30), the blocking piece (40) has a light-transmitting hole (41) which penetrates the upper and lower surfaces of the blocking piece (40) in the up-down direction, and a plurality of through holes (42) which are in communication with the light-transmitting hole (41) are arranged on the outer circumferential surface of the blocking piece (40).
2. The hydrogen peroxide plasma low temperature sterilizer according to claim 1, characterized in that: The light source emitting end (20) and the light source receiving end (30) are completely exposed to the light-transmitting hole (41).
3. The hydrogen peroxide plasma low temperature sterilizer of claim 1, wherein: The blocking piece (40) is in a cylindrical shape.
4. The hydrogen peroxide plasma low temperature sterilizer of claim 1, wherein: The material of the blocking piece (40) is aluminum or stainless steel.
5. The hydrogen peroxide plasma low temperature sterilizer according to any one of claims 1 to 4, characterized in that: The lower end of the blocking piece (40) is provided with a base (50), the base (50) is provided with a limiting piece (51) which penetrates the upper and lower surfaces of the base (50) and is configured to move in the up-down direction, and the lower wall of the sterilization chamber (10) is provided with a limiting hole (11) for accommodating the limiting piece (51).
6. The hydrogen peroxide plasma low temperature sterilizer of claim 5, wherein: The limiting piece (51) comprises a head (511) and a rod body (512) which are connected, the diameter of the head (511) is larger than the diameter of the rod body (512), the rod body (512) is provided with an external thread at one end close to the head (511), the base (50) is provided with a threaded hole (52) which is adaptively connected with the external thread, and the limiting hole (11) is used for accommodating the rod body (512).
7. The hydrogen peroxide plasma low temperature sterilizer of claim 6, wherein: The rod body (512) is provided with a first chamfer (5121) at one end away from the head (511).
8. The hydrogen peroxide plasma low temperature sterilizer of claim 6, wherein: The head (511) is provided with a plurality of anti-skid stripes which are arranged in the circumferential direction of the head (511) and extend in the axial direction of the head (511).
9. The hydrogen peroxide plasma low temperature sterilizer of claim 5, wherein: The lower wall of the sterilization chamber (10) is provided with a positioning groove (12) for positioning the base (50), and the sterilization chamber (10) has an opening, one end of the positioning groove (12) close to the opening extends to the opening.
10. The hydrogen peroxide plasma low temperature sterilizer of claim 9, wherein: One end of the positioning groove (12) at the opening is provided with a second chamfer (121).