Tracheostomy tube full-process intelligent processor based on multi-mode sterilization

By constructing a multimodal sterilization device with a three-compartment integrated structure, and combining chemical decomposition, physical inactivation, and mechanical stripping methods, the problem of incomplete sterilization of tracheostomy tubes has been solved, achieving rapid and efficient sterilization and meeting the clinical need for immediate reuse.

CN224220452UActive Publication Date: 2026-05-12FUDAN UNIV SHANGHAI CANCER CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUDAN UNIV SHANGHAI CANCER CENT
Filing Date
2025-04-16
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing technologies for tracheostomy tube sterilization are incomplete, time-consuming, and difficult to meet the needs of modern hospital infection control. In particular, there is a lack of rapid sterilization solutions in emergency rescue scenarios, and traditional disinfection methods have problems such as incomplete sterilization, biofilm residue, and dampness that breeds bacteria.

Method used

The multimodal sterilization equipment adopts a three-compartment integrated structure, including an immersion chamber, a boiling chamber, and a drying chamber. It combines chemical decomposition, physical inactivation, and mechanical stripping into a multimodal process, and utilizes components such as a stirring device, a heating device, a vacuum pump, and hot air nozzles to achieve rapid and efficient sterilization.

Benefits of technology

It achieves rapid and thorough sterilization of tracheostomy tubes, improves cleaning efficiency, reduces infection risk, meets the clinical need for immediate reuse, and achieves a 100% sterilization qualification rate, with an efficiency increase of 300%.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tracheostomy tube full-flow intelligent processor based on multi-mode sterilization, which comprises a casing, a soaking cabin, a boiling cabin and a drying cabin are sequentially arranged in the casing from top to bottom, a control panel and a power switch are arranged at the top of the casing, the soaking cabin is provided with a first cabin door and a first liquid inlet, and the boiling cabin is provided with a second cabin door and a second liquid inlet. A stirring device, a concentration sensor and an automatic liquid supplementing device are arranged in the soaking cabin, the boiling cabin is provided with a second cabin door and a second liquid inlet, a heating disc is arranged in the boiling cabin, one side of the boiling cabin is connected with a miniature vacuum pump, the drying cabin is provided with a third cabin door and a first liquid outlet, and a hot air nozzle is arranged in the drying cabin. The hot air nozzles are connected with an air blower located on one side of the drying cabin. The three-dimensional action mechanism of chemical decomposition, physical inactivation and mechanical stripping is constructed, the technical limitation of a traditional single sterilization mode is broken through, a three-cabin integrated structure is adopted, rapid sterilization can be achieved, and the cleaning efficiency of a tracheotomy sleeve cavity is greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of tracheostomy tube sterilization technology, specifically relating to an intelligent tracheostomy tube processing machine based on multimodal sterilization throughout the entire process. Background Technology

[0002] As a core medical device for maintaining airway patency in critically ill patients, the sterilization quality of tracheostomy cannulas directly affects the incidence of respiratory infections. Currently, the traditional disinfection method of "manual cleaning + open boiling" is commonly used in clinical practice, which suffers from problems such as incomplete sterilization, long processing time, and biofilm residue. Statistics show that the tracheostomy-related infection rate in tertiary hospitals in China is as high as 12-18%, with nearly 40% of these cases directly related to incomplete cannula sterilization, revealing the serious reality that traditional disinfection techniques are insufficient to meet the needs of modern hospital infection control.

[0003] At the current technological level, metal cannula sterilization faces multiple technical constraints: First, the pretreatment stage relies on manual scrubbing, which is difficult to effectively clean for cannulas with an inner diameter of ≤6mm. Residual protein secretions can easily form a biofilm protective layer, reducing the penetration efficiency of subsequent sterilizing agents by more than 60%. Second, conventional boiling equipment generally suffers from large temperature fluctuations (±3-5℃) and steam escape, failing to meet the 98℃ constant temperature maintenance standard required by the "Disinfection Technical Specifications" for 15 minutes, resulting in poor inactivation of heat-resistant pathogens. Third, the drying stage mostly relies on natural air drying, which can easily breed Gram-negative bacilli in damp cannulas. A study by the US CDC shows that the risk of secondary contamination of medical devices that are not sufficiently dried is 3.2 times higher. Fourth, there is a lack of rapid sterilization solutions for emergency resuscitation scenarios. Existing high-pressure steam equipment is prone to fatigue of the metal cannula material due to excessively high temperatures (≥134℃), and the processing cycle is as long as 45 minutes or more, which is difficult to meet the needs of immediate clinical reuse. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization, so as to solve the shortcomings of the existing technology.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A fully intelligent tracheostomy cannula processing machine based on multimodal sterilization is provided, comprising a casing, inside which are arranged from top to bottom an immersion chamber, a boiling chamber, and a drying chamber. A control panel and a power switch are located on the top of the casing. The immersion chamber has a first door and a first liquid inlet, and is equipped with a stirring device, a concentration sensor, and an automatic liquid replenisher. The boiling chamber has a second door and a second liquid inlet, and is equipped with a heating plate. A miniature vacuum pump is connected to one side of the boiling chamber. The drying chamber has a third door and a first liquid outlet, and is equipped with a hot air nozzle connected to a blower located on one side of the drying chamber.

[0007] As described in the intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization, the stirring device is a physical stirring blade or a magnetic stirrer, and the automatic liquid replenisher is an electromagnetic valve located at the first liquid inlet.

[0008] As described in the intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization, the soaking chamber, the boiling chamber, and the drying chamber are all equipped with lumen adapter supports.

[0009] As described in the intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization, a HEPA filter is configured between the lumen adapter bracket in the drying chamber and the hot air nozzle.

[0010] As described in the intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization, the soaking chamber, the boiling chamber, and the drying chamber are all equipped with ultraviolet self-cleaners.

[0011] As described in the intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization, the boiling chamber is equipped with a second liquid outlet and an emergency drainage system, and the emergency drainage system adopts a dual-loop power pump.

[0012] The beneficial effects of this utility model's technical solution are:

[0013] By constructing a three-dimensional action mechanism of "chemical decomposition-physical inactivation-mechanical peeling", it breaks through the technical limitations of the traditional single sterilization mode. By adopting a three-compartment integrated structure, it can achieve rapid sterilization and greatly improve the cleaning efficiency of the tracheostomy tube lumen. Attached Figure Description

[0014] To further illustrate the above-mentioned objectives, structural features, and effects of this utility model, the following will describe this utility model in detail with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0016] In the diagram: 1. Housing; 2. Immersion chamber; 3. Boiling chamber; 4. Drying chamber; 5. Control panel; 6. Power switch; 7. First door; 8. First liquid inlet; 9. Second door; 10. Second liquid inlet; 11. Heating plate; 12. Third door; 13. First liquid outlet; 14. Blower; 15. Physical stirring blade; 16. HEPA filter. Detailed Implementation

[0017] The terms “utility model” and “this utility model” used in this specification are intended to broadly refer to all subject matter of this specification and any of the following patent claims. Statements containing these terms should not be construed as limiting the subject matter described herein or limiting the meaning or scope of any of the following patent claims. Furthermore, this specification does not attempt to describe or limit the subject matter covered by any claim of any particular component, paragraph, statement, or drawing of this application. The subject matter should be understood with reference to the entire specification, all drawings, and any of the following claims. This utility model may have other embodiments and be practiced or implemented in other ways. Moreover, it should be understood that the wording and terminology used herein are for illustrative purposes and should not be considered limiting.

[0018] The details of the present invention will now be discussed with reference to the accompanying drawings, which are illustrated by way of example only. In the drawings, similar features or components may be labeled with the same reference numerals.

[0019] The use of the terms "comprising," "having," and "including," and variations thereof, herein means to include the items listed herein, their equivalents, and additional items. While reference may be made in the description of the drawings to directions such as above, below, upward, downward, backward, bottom, top, front, rear, etc., for convenience, reference is made relative to the drawings. These directions are not intended to literally accept or limit the invention in any form. Furthermore, terms such as "first," "second," "third," etc., are used herein for illustrative purposes and are not intended to indicate or imply importance or significance.

[0020] See Figure 1 As shown, this utility model, a fully intelligent processing machine for tracheostomy tubes based on multimodal sterilization, is applicable to metal tracheostomy tubes. Specifically, it includes a housing 1, inside which, arranged from top to bottom, are an immersion chamber 2, a boiling chamber 3, and a drying chamber 4. A control panel 5 and a power switch 6 are located on the top of the housing 1. The immersion chamber 2 has a first door 7 and a first liquid inlet 8, and is equipped with a stirring device, a concentration sensor, and an automatic liquid replenisher. The boiling chamber 3 has a second door 9 and a second liquid inlet 10, and is equipped with a heating plate 11. A miniature vacuum pump is connected to one side of the boiling chamber 3. The drying chamber 4 has a third door 12 and a first liquid outlet 13, and is equipped with a hot air nozzle connected to a blower 14 located on one side of the drying chamber 4.

[0021] Furthermore, the stirring device is a physical stirring blade 15 or a magnetic stirrer. The working principle of the magnetic stirrer is to use a magnetic field to drive a magnetic stir bar placed in the container to rotate in a circular motion, thereby achieving the purpose of stirring the liquid. In this embodiment, the magnetic stirrer is installed at the center of the bottom of the tank, and the speed is adjustable from 0 to 500 r / min.

[0022] The immersion chamber 2 is equipped with a titanium alloy concentration sensor and an automatic replenisher to ensure that the concentration of the enzyme washing solution is stable within the set value ±0.3%. Combined with the adjustable magnetic stirring at 500r / min to create a turbulent effect, the cleaning efficiency of the cavity is increased by 2.8 times compared with traditional manual brushing.

[0023] The automatic replenishment device is preferably a solenoid valve located at the first inlet 8. Under the action of the corresponding internal control system on the control panel 5, when the concentration sensor detects that the concentration of the enzyme washing solution is lower than the threshold, the solenoid valve is opened to replenish the enzyme washing solution. The probe of the concentration sensor is installed at a 45° downward angle and is made of corrosion-resistant titanium alloy.

[0024] The preferred dimensions of the casing 1 are 600×500×800mm, and the outer shell material is medical-grade 316L stainless steel (1.5mm thick). The volumes of the three chambers, namely the immersion chamber 2, the boiling chamber 3, and the drying chamber 4, are 15L, 10L, and 12L, respectively. Each of the three chambers is equipped with a tube adapter bracket, which can accommodate tubes with an inner diameter of 4-12mm.

[0025] The boiling chamber 3 is equipped with a second liquid outlet and an emergency drainage system, which uses a dual-loop power pump. The heating plate 11 is preferably 1500W in power and has a Teflon coating. The emergency drainage system empties the high-temperature liquid in the boiling chamber 3 within 30 seconds in the event of a power outage, avoiding the risk of burns.

[0026] The boiling chamber 3 uses vacuum negative pressure boiling technology, which maintains a pressure environment of -80kPa through a quick-release micro vacuum pump, so that the boiling point of water is precisely controlled at 98℃ and maintained for 15 minutes. This can effectively kill heat-resistant pathogens such as Mycobacterium tuberculosis, while avoiding the risk of aerosol diffusion caused by open boiling.

[0027] The drying chamber 4 preferably has four hot air nozzles, installed at a 30° downward angle, with an adjustable air velocity of 0.5-2 m / s. A HEPA filter 16 is installed between the tube adapter bracket and the hot air nozzles inside the drying chamber 4.

[0028] The drying chamber 4 is equipped with four-way adjustable hot air nozzles, which can reduce the moisture content of the sleeve to below 0.5% within 8 minutes, which is 6 times more efficient than natural air drying. It also uses HEPA filtration to ensure that the cleanliness of the supplied air meets the ISO Class 5 standard.

[0029] Immersion chamber 2, boiling chamber 3, and drying chamber 4 are all equipped with ultraviolet self-cleaning devices. The ultraviolet self-cleaning module automatically starts after each round of disinfection, using 265nm wavelength ultraviolet light to irradiate the inner wall of the chamber for 20 minutes, which can effectively kill 99.9% of MRSA biofilm.

[0030] It is understandable that the automatic opening and closing of each hatch and the functional sequence of each component within each hatch can be controlled via control panel 5 and pre-programmed using a PLC or similar pre-programming system; the relevant programming technology is existing technology. Control panel 5 preferably adopts a 15° forward tilt design for ease of operation.

[0031] During operation, there are generally two modes: Standard mode uses a gradient temperature strategy (85℃ preheating → 98℃ maintenance → 100℃ terminal sterilization), completing routine disinfection in 30 minutes; Rapid mode uses a Teflon-coated heating plate to achieve 132℃ autoclaving, meeting the emergency reuse standards specified in GB15982-2012 in just 18 minutes, and after 500 cycle tests, the tensile strength of the metal sleeve only decreased by 2.7%. The corresponding mode can be selected using control panel 5.

[0032] According to third-party testing, the sterilization pass rate of this system is 100%, and its overall efficiency is 300% higher than that of traditional methods, providing a safe and efficient disinfection solution for clinical use.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully intelligent tracheostomy cannula processing machine based on multimodal sterilization, characterized in that, The device includes a housing, inside which, from top to bottom, are arranged an immersion chamber, a boiling chamber, and a drying chamber. A control panel and power switch are located on the top of the housing. The immersion chamber has a first door and a first liquid inlet, and is equipped with a stirring device, a concentration sensor, and an automatic liquid replenisher. The boiling chamber has a second door and a second liquid inlet, and is equipped with a heating plate. A miniature vacuum pump is connected to one side of the boiling chamber. The drying chamber has a third door and a first liquid outlet, and is equipped with a hot air nozzle connected to a blower located on one side of the drying chamber.

2. The intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization as described in claim 1, characterized in that, The stirring device is a physical stirring blade or a magnetic stirrer, and the automatic liquid replenisher is an electromagnetic valve located at the first liquid inlet.

3. The intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization as described in claim 1, characterized in that, The immersion chamber, the boiling chamber, and the drying chamber are all equipped with a tube adapter bracket.

4. The intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization as described in claim 3, characterized in that, A HEPA filter is installed between the tube adapter bracket and the hot air nozzle in the drying chamber.

5. The intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization as described in claim 1, characterized in that, The immersion chamber, the boiling chamber, and the drying chamber are all equipped with ultraviolet self-cleaning devices.

6. The intelligent processing machine for the entire process of tracheostomy cannula based on multimodal sterilization as described in claim 1, characterized in that, The boiling chamber is equipped with a second liquid outlet and an emergency drainage system, which uses a dual-loop power pump.