An apparatus for disinfecting instruments used in a hospital physical

Abstract

The application discloses a kind of apparatus disinfection device for hospital physical examination, specifically relates to medical instrument technical field, including disinfection box, at least one disinfection cabin in disinfection box body and hinged visual sealing door in disinfection box body front side, still including instrument placing mechanism, ozone generation unit and hot air drying mechanism, the instrument placing mechanism is located in disinfection cabin, for carrying and positioning medical instrument, the ozone generation unit is communicated with disinfection cabin.The apparatus disinfection device for hospital physical examination described in the application, by combining ozone fumigation disinfection with short wave ultraviolet irradiation, using the strong penetration of ozone and the direct irradiation effect of ultraviolet, realize the all-round, dead angle-free disinfection of the surface of medical instrument and the inside of complex structure, overlapping position, effectively solve the disinfection blind area problem existing in the single disinfection mode of the prior art, improve the thoroughness and reliability of disinfection, suitable for various materials and structures of physical examination instrument.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a device sterilization device for hospital physical examinations. Background Technology

[0002] In routine hospital diagnosis and treatment and physical examinations, the disinfection of medical devices is a crucial step in ensuring patient safety and preventing cross-infection. A wide variety of devices are used during physical examinations, including but not limited to tongue depressors, thermometers, stethoscope earpieces, blood pressure cuffs, various probes (such as ultrasound probes), and simple surgical instruments. These devices come into direct or indirect contact with the patient's skin, mucous membranes, or bodily fluids; if disinfection is inadequate, they can easily become a medium for the spread of pathogens. Currently, hospitals routinely rely on the following methods for the disinfection of such examination devices: Chemical disinfectant immersion method: Instruments are immersed in chemical solutions containing chlorine disinfectants, alcohol, glutaraldehyde, etc., for a certain period of time. Although this method is widely used, it has obvious drawbacks: the disinfection effect is significantly affected by concentration, temperature, and time, making it difficult to control precisely; the irritating odor can easily affect the treatment environment; some disinfectants are corrosive to instrument materials, which may shorten the life of the instruments; after immersion, they need to be rinsed with sterile water and dried, which is a cumbersome and time-consuming process, and there is a risk of secondary contamination.

[0003] Ultraviolet (UV) disinfection cabinets: These use ultraviolet light to disinfect instruments. Their drawbacks include: weak UV penetration, meaning they are only effective on the surface of instruments directly exposed to UV light; they cannot guarantee effective disinfection of complex internal structures, overlapping parts, or shaded areas; long-term exposure may cause aging of some plastic or rubber components; and instruments cannot be dried simultaneously during the disinfection process.

[0004] Traditional high-temperature pressure steam sterilizers are suitable for instruments that can withstand high temperatures and pressures. However, they are not suitable for many plastic products, electronic probes with cables, precision components, and other non-high-temperature resistant instruments used extensively in physical examinations. Forcing their use may result in instrument deformation, damage, or malfunction.

[0005] Dispersed wiping disinfection: Medical staff manually wipe the surface of instruments with disinfectant wipes. This method is inefficient, the quality of disinfection depends entirely on the operator's standardization and sense of responsibility, it is difficult to achieve standardization and unified monitoring, and it cannot ensure thorough disinfection of all instrument surfaces, especially unsuitable for instruments with complex structures. Summary of the Invention

[0006] The main objective of this invention is to provide a device for sterilizing medical instruments used in hospital physical examinations, which can effectively solve the problems of incomplete sterilization, dead corners, unsuitability for non-high temperature resistant precision instruments, inconvenient drying after sterilization, and safety hazards caused by ozone residue in existing sterilization methods.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A device for sterilizing medical instruments used in hospital physical examinations includes a sterilization box, at least one sterilization chamber disposed inside the sterilization box, and a visual sealed door hinged to the front of the sterilization box. It also includes an instrument placement mechanism, an ozone generating unit, and a hot air drying mechanism.

[0008] The device placement mechanism is located inside the disinfection chamber and is used to carry and position medical devices.

[0009] The ozone generating unit is connected to the disinfection chamber and is used to inject ozone into the disinfection chamber.

[0010] The hot air drying mechanism is connected to the disinfection chamber and is used to send dry hot air into the disinfection chamber.

[0011] Preferably, the inner wall of the disinfection chamber is equipped with multiple short-wave ultraviolet lamps.

[0012] Preferably, the disinfection chamber is equipped with an ozone concentration sensor and a temperature sensor, with their probes extending into the disinfection chamber.

[0013] Preferably, the ozone generating unit is connected to an ozone injection pipe via an output pipe, and the ozone injection pipe extends into the inner cavity of the disinfection chamber.

[0014] Preferably, it also includes a catalytic ozone decomposition device, the output of which extends into the inner cavity of the disinfection chamber.

[0015] Preferably, the hot air drying mechanism includes a base plate, a blower, a heater, an air duct, and a connecting pipe, with the connecting pipe extending into the inner cavity of the disinfection chamber.

[0016] Preferably, the disinfection box is equipped with a one-way exhaust valve that extends into the inner cavity of the disinfection chamber.

[0017] Preferably, the instrument placement mechanism includes a slide rail, an L-shaped slide plate, and a mesh basket. The slide rail is fixed to the inner wall of the disinfection chamber and has a horizontal T-shaped groove. The L-shaped slide plate is slidably disposed in the horizontal T-shaped groove by means of pulleys and has an insertion hole. The mesh basket is inserted into the insertion hole by means of an insertion rod.

[0018] Preferably, the top of the mesh basket is provided with an installation frame and a lifting handle, and the interior is provided with a hook, a placement positioning plate and a placement plate, wherein the placement positioning plate is provided with a positioning hole and the placement plate is provided with a placement hole.

[0019] Preferably, the disinfection box contains two independent disinfection chambers, corresponding to the conventional instrument chamber and the precision instrument chamber, respectively.

[0020] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a device for disinfecting medical instruments used in hospital physical examinations. By combining ozone fumigation disinfection with short-wave ultraviolet irradiation, it utilizes the strong penetrability of ozone and the direct irradiation effect of ultraviolet light to achieve all-round, dead-angle-free disinfection of the surface of medical instruments, as well as the interior of complex structures and overlapping parts. This effectively solves the problem of blind spots in existing single disinfection methods, improves the thoroughness and reliability of disinfection, and is suitable for physical examination instruments of various materials and structures.

[0021] This invention provides a device for sterilizing medical instruments used in hospital physical examinations. The instrument placement mechanism adopts a combination design of a sliding and pull-out L-shaped slide plate and a detachable mesh basket. The basket is equipped with hooks, positioning holes and placement holes, which can classify and fix various instruments in layers, ensuring that all surfaces are fully exposed during the sterilization process and avoiding instruments stacking and blocking each other. This not only improves the sterilization efficiency and effect, but also facilitates the standardized handling and management of instruments.

[0022] This invention provides a device for sterilizing medical instruments used in hospital physical examinations. By setting up two independent sterilization chambers and equipping them with a zoned hot air drying mechanism and a catalytic ozone decomposition device, it can achieve zoned and temperature-controlled drying of conventional instruments and high-temperature-sensitive precision instruments. After sterilization, it can quickly decompose residual ozone, effectively solving the problems of damage to precision instruments due to high-temperature drying and the safety hazards to operators caused by residual ozone in traditional methods, thus improving the applicability and safety of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the disinfection chamber of the present invention; Figure 3 This is a rear view structural diagram of the disinfection box of the present invention; Figure 4 This is a schematic diagram of the instrument placement mechanism of the present invention; Figure 5 This is a schematic diagram of the internal structure of the mesh basket of the present invention; Figure 6 This is a schematic diagram of the hot air drying mechanism of the present invention.

[0024] In the diagram: 1. Disinfection chamber; 11. Disinfection chamber; 111. Short-wave ultraviolet lamp; 12. Ozone concentration sensor; 13. Temperature sensor; 2. Instrument placement mechanism; 21. Slide rail; 22. Horizontal T-shaped slide; 23. L-shaped slide plate; 24. Pulley; 25. Insertion hole; 26. Mesh basket; 261. Hook; 262. Placement positioning plate; 263. Placement plate; 264. Positioning hole; 265. Placement hole; 27. Mounting frame; 28. Lifting handle; 29. ​​Insertion rod; 3. Visual sealing door; 4. Ozone generating unit; 41. Output pipe; 42. Ozone injection pipe; 43. Catalytic ozone decomposition device; 5. Hot air drying mechanism; 51. Base plate; 52. Blower; 53. Heater; 54. Air supply pipe; 55. Connecting pipe; 56. One-way exhaust valve. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] like Figure 1 As shown, the present invention provides an instrument disinfection device for hospital physical examinations, which mainly includes a disinfection box 1, two independent disinfection chambers 11 disposed in the disinfection box 1, a visual sealing door 3 hinged to the front side of the disinfection box 1, an instrument placement mechanism 2 disposed in the disinfection chamber 11, an ozone generating unit 4 installed on the rear side of the disinfection box 1, and a hot air drying mechanism 5.

[0027] The disinfection cabinet 1 is a rectangular cabinet made of stainless steel. Its interior is divided into two independent disinfection chambers 11. The left side is a conventional instrument chamber, and the right side is a precision instrument chamber that is not resistant to high temperatures. The two chambers are symmetrical in structure and have independent functions. Each disinfection chamber 11 is hinged to the front with a visual sealing door 3. The door is made of stainless steel frame and tempered glass embedded in it, which makes it easy to observe the status of the instruments inside the chamber. The edge of the visual sealing door 3 is equipped with a sealing strip. When closed, it forms a sealed space with the disinfection cabinet 1. The door is equipped with a tongue lock in the middle to lock and prevent accidental opening. Specifically, the sealing strip is made of EPDM rubber with a hollow convex cross-section. It is squeezed and deformed after the door is closed to achieve an airtight seal and can withstand ozone corrosion and temperatures above 60°C.

[0028] Each disinfection chamber 11 has multiple short-wave ultraviolet lamps 111 installed on the top, bottom, and left and right side walls of its inner cavity, arranged in a matrix to achieve multi-angle irradiation and reduce disinfection dead spots. The top of the disinfection box 1 is equipped with an ozone concentration sensor 12 and a temperature sensor 13 corresponding to each disinfection chamber 11. The probes of both extend through the top of the box into their respective disinfection chambers 11 to monitor the ozone concentration and temperature inside the chamber in real time.

[0029] The instrument placement mechanism 2 is installed in each sterilization chamber 11 and is used to classify, carry, and position medical devices, combined with Figure 2 and Figure 4 As shown, the instrument placement mechanism 2 includes two vertical slide rails 21 fixed to the rear wall of the disinfection chamber 11. Each of the two slide rails 21 has a horizontal T-shaped groove 22 on its opposite side. An L-shaped slide plate 23 is slidably installed in the horizontal T-shaped groove 22 of each slide rail 21. The horizontal section of the L-shaped slide plate 23 is located outside the slide rail 21, and the vertical section extends into the groove and is rotatably installed with two upper and lower pulleys 24. The pulleys 24 roll along the horizontal T-shaped groove 22, so that the L-shaped slide plate 23 can be easily pulled out in the horizontal direction. The horizontal section of the L-shaped slide plate 23 has two through holes 25.

[0030] The instrument placement mechanism 2 also includes a detachable mesh basket 26, such as Figure 5 As shown, a rectangular mounting frame 27 is fixed to the top of the mesh basket 26. The mounting frame 27 has lifting handles 28 on both sides of the top and a vertically downward inserting rod 29 at each of the four bottom corners. The inserting rods 29 are inserted into the corresponding holes 25 on the L-shaped sliding plate 23, thus securing the mesh basket 26 to the L-shaped sliding plate 23. It can be lifted off entirely by pulling the handles 28. Multiple hooks 261 are provided on the front and rear inner walls of the mesh basket 26 for hanging stethoscopes, cuffs, and other suspendable instruments. Two layers are fixed to the left and right inner walls: the upper placement plate 262 has multiple positioning holes 264, and the lower placement plate 263 has placement holes 265 corresponding to the positioning holes 264, suitable for upright placement of test tubes, probes, and other slender and fragile instruments. Other instruments can be placed directly on the bottom mesh surface of the mesh basket 26. This design allows instruments to be placed in layers and compartments, fully exposing each surface and avoiding stacking and obstruction. Specifically, the mesh basket 26 is welded from 304 stainless steel wire with a mesh size of 5mm5mm, which ensures that the surface of the instrument is fully exposed to ultraviolet rays and ozone, while also having sufficient structural strength and corrosion resistance.

[0031] like Figure 1 and Figure 3 As shown, the ozone generating unit 4 is fixed in the middle of the rear side of the disinfection chamber 1. Its output end is connected to the output pipe 41. The output pipe 41 branches forward into two ozone injection pipes 42, which penetrate the rear wall of the chamber and extend into the upper space of the left and right disinfection chambers 11 respectively. The ozone generating unit 4 can generate and quantitatively deliver ozone gas into the disinfection chamber 11. Below the ozone injection pipe 42, a catalytic ozone decomposition device 43 is also provided for each disinfection chamber 11. Its outlet end also extends into the disinfection chamber 11, which is used to catalytically decompose the residual ozone into oxygen after the disinfection process is completed. Specifically, the ozone generating unit 4 adopts a corona discharge ozone generator, which is equipped with a high voltage electrode and a dielectric inside. The discharge voltage and frequency are adjusted by the controller to control the ozone output concentration. The ozone output pipe 41 is equipped with a flow regulating valve and an ozone concentration monitoring feedback circuit. It can dynamically adjust the ozone output according to the real-time data of the ozone concentration sensor 12 in the disinfection chamber 11, so that the ozone concentration in the chamber is maintained within a set range, such as 10-50 ppm. The catalytic ozone decomposition device 43 is filled with a manganese-based catalyst, such as a MnO2 honeycomb carrier. Its air inlet is connected to the upper part of the disinfection chamber 11, and the air outlet introduces the gas in the chamber into the catalyst layer through a small exhaust fan. Ozone is catalytically decomposed into oxygen at room temperature. The outer shell of the device is equipped with ventilation holes, and the decomposed oxygen can be directly discharged into the disinfection chamber or discharged through the exhaust valve.

[0032] The hot air drying unit 5 is installed on the upper rear side of the disinfection box 1, such as... Figure 6 As shown, it includes a vertical base plate 51. Two independent air supply units are installed on the base plate 51 corresponding to the two disinfection chambers 11. Each air supply unit includes a blower 52, a heater 53, an air supply pipe 54, and a connecting pipe 55. The air inlet of the blower 52 can be connected to an external air filter, and the air outlet is connected to the heater 53. The heater 53 is equipped with an electric heating wire, which can heat the airflow to a set temperature. The air outlet of the heater 53 is connected to the air supply pipe 54. The air supply pipe 54 is connected forward to the connecting pipe 55 that runs through the inner cavity of the corresponding disinfection chamber 11, thereby sending clean hot air into the chamber. In addition, a one-way exhaust valve 56 is provided on the upper rear wall of each disinfection chamber 11 to discharge moisture or excess gas during the drying process. Specifically, heater 53 is a PTC ceramic heater, which is linked with temperature sensor 13 and achieves precise temperature control through PID controller. The temperature adjustment range is 30℃~80℃. For precision instrument chambers, the drying temperature is set to 40-50℃; for conventional instrument chambers, it can be set to 60-70℃.

[0033] The working principle of this instrument disinfection device used in hospital physical examinations will be explained in detail below.

[0034] like Figure 1-6As shown, open the visual sealing door 3, pull the L-shaped slide plate 23 outward along the slide rail 21, and place the instruments to be disinfected into the corresponding positions in the mesh basket 26, such as hanging them on the hook 261, inserting them into the positioning holes 264 and placement holes 265, or placing them flat on the mesh surface. Push the L-shaped slide plate 23 back, close and lock the visual sealing door 3, and select the disinfection program through the device's built-in control panel. The program options include: pure ultraviolet disinfection mode, ozone fumigation mode, ultraviolet and ozone combined disinfection mode, and different temperature drying programs for conventional instruments or precision instruments. The control system has a built-in microprocessor that can preset and automatically execute the parameters of each program. Start the selected program. If ultraviolet disinfection is involved, the short-wave ultraviolet lamp 111 is lit to directly irradiate the surface of the instrument. If ozone disinfection is involved, the ozone generating unit 4 is activated, injecting the set concentration of ozone into the disinfection chamber 11 through the ozone injection pipe 42. The ozone diffuses and penetrates into the seams of the instruments. The ozone concentration sensor 12 and temperature sensor 13 provide real-time data feedback, and the control system adjusts the ozone output and the environment inside the chamber accordingly. After the disinfection stage, the drying program is automatically initiated. The hot air drying mechanism 5 is activated, and the blower 52 sends the filtered air to the heater 53 for heating. The hot air is then sent into the disinfection chamber 11 through the connecting pipe 55. For precision instrument chambers, a low-temperature drying of 40-50℃ is used; for conventional instrument chambers, a medium-temperature drying of 60-70℃ can be used. The hot air circulates inside the chamber, carrying away moisture from the instrument surface. The moisture is discharged through the one-way exhaust valve 56. At the end of the drying program or after the program is completed, if ozone was used during the disinfection process, the catalytic ozone decomposition device 43 is activated to quickly decompose the residual ozone in the chamber into oxygen. Once the temperature and concentration return to normal, the program ends and a prompt signal is issued. The user can then open the visual sealing door 3, pull out the instrument placement mechanism 2, and remove the disinfected and dried instruments.

[0035] The control system has a built-in PLC and presets multiple disinfection and drying programs. For example, the combined disinfection and medium-temperature drying program includes the following steps: 15 minutes of ultraviolet irradiation, 20 minutes of ozone fumigation, 5 minutes of catalytic decomposition of residual ozone, and 30 minutes of 60°C hot air drying. The time, temperature, and concentration parameters of each stage can be adjusted via the touch screen according to the type of instrument.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus disinfection device for hospital physical examination, comprising a disinfection box body (1), at least one disinfection cabin (11) arranged in the disinfection box body (1), and a visualized sealing door (3) hinged to the front side of the disinfection box body (1), characterized in that: It also includes an instrument placement mechanism (2), an ozone generating unit (4), and a hot air drying mechanism (5); The device placement mechanism (2) is located inside the disinfection chamber (11) and is used to carry and position medical devices; The ozone generating unit (4) is connected to the disinfection chamber (11) and is used to inject ozone into the disinfection chamber (11); The hot air drying mechanism (5) is connected to the disinfection chamber (11) and is used to send dry hot air into the disinfection chamber (11).

2. The apparatus for sterilizing instruments used in physical examinations in hospitals according to claim 1, wherein: The inner wall of the disinfection chamber (11) is equipped with multiple short-wave ultraviolet lamps (111).

3. The instrument disinfection device for hospital physical examinations according to claim 1, characterized in that: The disinfection chamber (1) is equipped with an ozone concentration sensor (12) and a temperature sensor (13), with their probes extending into the disinfection chamber (11).

4. The instrument disinfection device for hospital physical examinations according to claim 1, characterized in that: The ozone generating unit (4) is connected to an ozone injection pipe (42) via an output pipe (41), and the ozone injection pipe (42) extends into the inner cavity of the disinfection chamber (11).

5. The instrument disinfection device for hospital physical examinations according to claim 4, characterized in that: It also includes a catalytic ozone decomposition device (43), the output of which extends into the inner cavity of the disinfection chamber (11).

6. The instrument disinfection device for hospital physical examinations according to claim 1, characterized in that: The hot air drying mechanism (5) includes a base plate (51), a blower (52), a heater (53), an air duct (54), and a connecting pipe (55), with the connecting pipe (55) extending into the inner cavity of the disinfection chamber (11).

7. The instrument disinfection device for hospital physical examinations according to claim 1, characterized in that: The disinfection box (1) is equipped with a one-way exhaust valve (56), which extends into the inner cavity of the disinfection chamber (11).

8. The instrument disinfection device for hospital physical examinations according to claim 1, characterized in that: The instrument placement mechanism (2) includes a slide rail (21), an L-shaped slide plate (23), and a mesh basket (26). The slide rail (21) is fixed to the inner wall of the disinfection chamber (11) and has a horizontal T-shaped slide groove (22). The L-shaped slide plate (23) is slidably placed in the horizontal T-shaped slide groove (22) by means of a pulley (24) and has an insertion hole (25). The mesh basket (26) is inserted into the insertion hole (25) by means of a rod (29).

9. A device for sterilizing medical instruments used in hospital physical examinations according to claim 8, characterized in that: The mesh basket (26) has an installation frame (27) and a lifting handle (28) on the top, and has a hook (261), a placement positioning plate (262) and a placement plate (263) inside. The placement positioning plate (262) has a positioning hole (264), and the placement plate (263) has a placement hole (265).

10. The instrument disinfection device for hospital physical examinations according to claim 1, characterized in that: The disinfection box (1) is equipped with two independent disinfection chambers (11), which correspond to the conventional instrument chamber and the precision instrument chamber, respectively.

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