Cleaning and disinfecting equipment for CT (computed tomography) examination in digestive department

By designing a gastroenterology CT examination cleaning and disinfection equipment using graded sustained release technology and nano-silver catalytic layer, the problem of difficulty in disinfecting lead protective clothing in gastroenterology CT examination was solved, and efficient pathogen inactivation and long-term antibacterial effects were achieved, effectively preventing cross-infection.

CN120203813AInactive Publication Date: 2025-06-27周口市中心医院
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Patent Information

Application Number
CN202510412229.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2025-06-27
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the CT examination in the gastroenterology department, it is difficult for the existing technology to effectively disinfect the complex structure of lead protective clothing, resulting in disinfection blind spots and pathogen growth, increasing the risk of cross-infection.

Method used

A cleaning and disinfection equipment for gastroenterology CT examination was designed, using graded sustained release technology and nanosilver catalytic layer to form a disinfection fog film through ultrasonic cavitation effect, combined with magnetron nanofiber cloth to release slow-release hydrogen peroxide, achieving penetrating sterilization. The equipment is equipped with a flexible profiling mechanism and a biomechanical sensing system, which can intelligently adapt to the human contact surface to ensure uniform penetration of disinfectants and long-term antibacterial.

Benefits of technology

The pathogen inactivation rate of 99.99% of the human contact surface is achieved, the disinfectant residue is 60% lower than the medical standard value, and has passed biocompatibility certification to ensure the integrity of the skin barrier under continuous operation and effectively prevent cross-infection.

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Abstract

The invention relates to the field of gastroenterology, and discloses a cleaning and disinfecting device for CT examination in the gastroenterology department, which comprises a motor, a material box and a hydraulic cylinder, a cover ring is sleeved outside the hydraulic cylinder, a mounting plate is fixedly assembled on the side surface of the cover ring, a piston rod is arranged on the lower side of the hydraulic cylinder, a cross rod is fixedly arranged at the lower end part of the piston rod, and a positioning ring is sleeved outside the motor. A connecting plate is fixedly mounted between the positioning ring and the material box; an end cover is mounted on the top surface of the material box; a mounting rod is fixedly mounted on the side surface of the material box; a liquid passing ring is fixedly mounted at the lower end of the mounting rod; a rotating rod is fixedly installed at the lower end of the rotating shaft, and guide frames are symmetrically installed on the bottom face of the rotating rod. By comprehensively disinfecting the human body, when CT examination is carried out, the human body can be effectively disinfected, and cross infection caused when lead clothes are worn is prevented.
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Description

Technical Field

[0001] The present invention relates to the field of gastroenterology, and particularly to a cleaning and disinfection device for CT examination in gastroenterology. Background Art

[0002] In the field of medical imaging examinations, especially during CT examinations in gastroenterology, medical staff need to wear lead protective clothing for a long time to prevent radiation exposure. Since this type of protective equipment is made of heavy metal composite materials, there are a large number of complex structures such as seams and folds on the surface. Conventional disinfection methods such as alcohol wiping are prone to produce disinfection blind spots, ultraviolet irradiation is difficult to penetrate three-dimensional structures, and high-pressure steam sterilization will cause the lead layer to oxidize and fail. Clinical practice has found that the contact surface between the inner layer of the lead gown and the torso of medical staff is prone to form a microbial breeding area, and pathogens such as Staphylococcus aureus and multi-drug resistant bacteria can survive in the fiber gaps for up to 72 hours. More seriously, during the contact between the patient and the lead gown on the examination bed, if the surface of the equipment is not thoroughly disinfected, it may cause cross-infection through the transmission chain of contact-deposition-transfer. Epidemiological data shows that the detection rate of Escherichia coli on the surface of lead gowns in the CT room of the gastroenterology department of a certain tertiary hospital is as high as 34%, directly resulting in 5 cases of nosocomial infections in postoperative patients. In order to solve the disinfection problem in CT examinations in gastroenterology, it is urgent to invent and create a cleaning and disinfection device for CT examinations in gastroenterology to solve the disinfection problem in gastroenterology. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and provide a cleaning and disinfection device for CT examination in gastroenterology.

[0004] The present invention is realized through the following technical solutions:

[0005] A cleaning and disinfection device for CT examination in gastroenterology includes a motor, a material box, and a hydraulic cylinder. A cover ring is sleeved outside the hydraulic cylinder, and a mounting plate is fixedly assembled on the side of the cover ring. A piston rod is installed below the hydraulic cylinder, and a cross bar is fixedly installed at the lower end of the piston rod. A positioning ring is sleeved outside the motor, and a movable part is fixedly installed on the surface of the positioning ring. The movable part is movably matched with the cross bar. A connecting plate is fixedly installed between the positioning ring and the material box. An end cover is installed on the top surface of the material box, and a mounting rod is fixedly installed on the side of the material box. A liquid passing ring is fixedly installed at the lower end of the mounting rod. A first connecting pipe is connected between the liquid passing ring and the material box. A rotating shaft is fixedly installed on the motor shaft of the motor, and a rotating rod is fixedly installed at the lower end of the rotating shaft. Guide frames are symmetrically installed on the bottom surface of the rotating rod, and sliding rings are sleeved on the guide frames. A spiral spring is installed between the sliding ring and the end of the guide frame. A vertical rod is fixedly installed on the lower side surface of the sliding ring, and a clamping ring is fixedly installed at the lower end of the vertical rod. Disinfection blocks are evenly installed on the clamping ring. A liquid passing plate is arranged below the liquid passing ring, and a second connecting pipe is connected between the liquid passing plate and the first connecting pipe.

[0006] The disinfectant supply system adopts a hierarchical slow-release technology. The quaternary ammonium salt active ingredient is continuously released through the nano-silver catalytic channel and is activated by the ultrasonic cavitation effect at the moment of contact, forming a disinfection fog film with tissue penetration to effectively kill transient and resident flora on the epidermis. The outer layer of the contact surface uses gradient pore atomization disinfection, and the inner layer releases slow-release hydrogen peroxide through a magnetron nanofiber cloth to achieve penetrative sterilization. This solution breaks through the limitations of traditional surface disinfection and killing, enabling the inactivation rate of pathogens on the human contact surface to reach 99.99%, the disinfectant residue to be less than 60% of the medical standard value, and it has passed the biocompatibility certification to ensure the integrity of the skin barrier under continuous operation.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0008] This device innovatively realizes intelligent adaptive disinfection of the human contact surface. It precisely fits the body curve through a flexible profiling mechanism. The arc-shaped clamping ring automatically adjusts the radius of curvature as the joint turns, and in combination with a biomechanical sensing system, it dynamically matches the contact pressure of 0.1 - 0.5 N / cm² 2 to ensure uniform penetration of the disinfectant. The multi-stage slow-release module forms a 24-hour antibacterial barrier of the quaternary ammonium salt disinfection component on the skin surface. The nano-silver catalytic layer can penetrate the epidermal cutin to kill the biofilm of drug-resistant bacteria. Clinically verified, the inactivation rate of Gram-positive bacteria is increased to 99.95%. By cleaning and disinfecting human parts, it can prevent cross-infection when wearing a lead apron and also cause less damage to the lead apron layer. Combined with the setting of the liquid passing plate, it can effectively perform the liquid spraying operation to disinfect the ankle part and improve the disinfection effect. Through comprehensive disinfection of the human body, during CT examination, it can effectively disinfect the human body and prevent cross-infection when wearing a lead apron. Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of the present invention.

[0010] Figure 2 It is a bottom view of the cooperation between the rotating rod and the guide frame of the present invention.

[0011] Figure 3 It is a side view of the cooperation between the material box and the mounting rod of the present invention.

[0012] Figure 4 It is a top view of the cooperation of the clamping ring of the present invention.

[0013] Figure 5 It is a top view of the liquid passing ring of the present invention.

[0014] Figure 6 It is a schematic structural diagram of the liquid passing plate of the present invention.

[0015] Label description: 1. Cross bar, 2. Piston rod, 3. Mounting plate, 4. Cover ring, 5. Hydraulic cylinder, 6. Rotating shaft, 7. Positioning ring, 8. Movable part, 9. Motor, 10. Connecting plate, 11. End cover, 12. Material box, 13. First connecting pipe, 14. Mounting rod, 15. Liquid passing ring, 16. Second connecting pipe, 17. Liquid passing plate, 18. Disinfection block, 19. Snap ring, 20. Vertical rod, 21. Helical spring, 22. Slip ring, 23. Guide frame, 24. Rotating rod. Detailed implementation mode

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017] Please refer to Figures 1-6 , the present invention provides a technical solution:

[0018] The cleaning and disinfection equipment for CT examination in the digestive department includes a motor 9, a material box 12 and a hydraulic cylinder 5. A cover ring 4 is sleeved outside the hydraulic cylinder 5. A mounting plate 3 is fixedly assembled on the side of the cover ring 4. A piston rod 2 is installed below the hydraulic cylinder 5. A cross bar 1 is fixedly installed at the lower end of the piston rod 2. A positioning ring 7 is sleeved outside the motor 9. A movable part 8 is fixedly installed on the surface of the positioning ring 7. The movable part 8 is movably matched with the cross bar 1. A connecting plate 10 is fixedly installed between the positioning ring 7 and the material box 12. An end cover 11 is installed on the top surface of the material box 12. A mounting rod 14 is fixedly installed on the side of the material box 12. A liquid passing ring 15 is fixedly installed at the lower end of the mounting rod 14. A first connecting pipe 13 is connected between the liquid passing ring 15 and the material box 12. A rotating shaft 6 is fixedly installed on the motor shaft of the motor 9. A rotating rod 24 is fixedly installed at the lower end of the rotating shaft 6. Guide frames 23 are symmetrically installed on the bottom surface of the rotating rod 24. A slip ring 22 is sleeved on the guide frames 23. A helical spring 21 is installed between the slip ring 22 and the end of the guide frame 23. A vertical rod 20 is fixedly installed on the lower side surface of the slip ring 22. A snap ring 19 is fixedly installed at the lower end of the vertical rod 20. Disinfection blocks 18 are uniformly installed on the snap ring 19. A liquid passing plate 17 is arranged below the liquid passing ring 15. A second connecting pipe 16 is connected between the liquid passing plate 17 and the first connecting pipe 13.

[0019] The movable part 8 is of a U-shaped structure. A shaft is arranged between the movable part 8 and the cross bar 1, and a screw is installed between the shaft and the movable part 8.

[0020] A spraying pump is installed in the material box 12.

[0021] The liquid-through ring 15 is an arc-shaped structure, the interior of the liquid-through ring 15 is hollow, the liquid-through ring 15 is in communication with the first connecting pipe 13 , and the inner wall of the liquid-through ring 15 is a mesh structure.

[0022] The clamping ring 19 is an arc-shaped structure, the mounting rod 14 is an L-shaped structure, the liquid ring 15 does not interfere with the movement of the clamping ring 19, the inner wall of the clamping ring 19 is a sponge layer and is connected to the disinfection block 18, the disinfection block 18 is a sponge, and the disinfection block 18 is impregnated with a quaternary ammonium salt disinfectant. A slow-release microcapsule structure is provided in the sponge layer, and the slow-release microcapsule is connected to the disinfection block 18 through a capillary channel. An anti-backflow one-way valve is provided at the bottom of the disinfection block chamber to form an independent liquid supply circuit with the material box 12.

[0023] The guide frame 23 is a circular structure, and the slip ring 22 is slidably matched with the guide frame 23 .

[0024] The liquid-passing plate 17 is a hollow plate, the liquid-passing plate 17 is in communication with the second connecting pipe 16 , and the top surface of the liquid-passing plate 17 is a mesh structure.

[0025] The hydraulic cylinder 5 has a built-in pressure feedback module, and the pressure sensing unit is connected to the equipment control terminal via a wireless transmission module. The piston stroke of the hydraulic cylinder 5 is linearly corresponding to the pressure value.

[0026] The mesh structure of the liquid-passing ring 15 adopts a gradient aperture design, with the aperture being 0.5 mm on the side close to the mounting rod 14 and gradually increasing to 2 mm away from the side, and the mesh surface is plated with a nano-silver coating.

[0027] Operation steps: first, the device is positioned and installed near the CT bed through the mounting plate 3. Before the CT examination, the key parts of the human body are disinfected. During the disinfection, the person being examined first stands on the liquid-passing plate 17 and places the clamp ring 19 at the neck position. At this time, the inner wall of the clamp ring 19 contacts the neck. The clamp ring 19 can be driven to rotate by the drive of the motor 9. The clamp ring 19 rotates around the patient's neck and is disinfected using the disinfection block 18. With the control of the hydraulic cylinder 5, the clamp ring 19 can be slowly moved downward. As the body gradually widens, the clamp ring 19 will be stretched open and fit the human body. The motor 9 is a forward and reverse motor. It does not rotate a full circle, but rotates half a circle for forward and reverse rotation. The person does not stand at the center of the clamp ring 19, but stands at an eccentric position. Therefore, the rise and fall of the clamp ring 19 is irrelevant to the patient. The liquid-passing ring 15 and the liquid-passing plate 17 are sprayed to further strengthen the disinfection. At this time, the patient is thoroughly disinfected. After disinfection, the patient can lie on the CT bed and wear a lead suit.

[0028] This specific embodiment is only an interpretation of the present invention and not a limitation thereof. After reading this specification, those skilled in the art may make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A cleaning and disinfection device for CT examination in the gastroenterology department, comprising a motor (9), a material box (12) and a hydraulic cylinder (5), characterized in that: A cover ring (4) is sleeved on the outer surface of the hydraulic cylinder (5), a mounting plate (3) is fixedly mounted on the side of the cover ring (4), a piston rod (2) is mounted on the lower side of the hydraulic cylinder (5), a cross bar (1) is fixedly mounted on the lower end of the piston rod (2), a positioning ring (7) is sleeved on the outer surface of the motor (9), a movable part (8) is fixedly mounted on the surface of the positioning ring (7), the movable part (8) and the cross bar (1) are movably matched, a connecting plate (10) is fixedly mounted between the positioning ring (7) and the material box (12), an end cover (11) is mounted on the top surface of the material box (12), a mounting rod (14) is fixedly mounted on the side of the material box (12), a liquid ring (15) is fixedly mounted on the lower end of the mounting rod (14), and a liquid ring (15) is fixedly mounted between the liquid ring (15) and the material box (12). A first connecting pipe (13) is connected, a rotating shaft (6) is fixedly mounted on the motor shaft of the motor (9), a rotating rod (24) is fixedly mounted on the lower end of the rotating shaft (6), a guide frame (23) is symmetrically mounted on the bottom surface of the rotating rod (24), a slip ring (22) is sleeved on the guide frame (23), a spiral spring (21) is mounted between the slip ring (22) and the end of the guide frame (23), a vertical rod (20) is fixedly mounted on the lower side of the slip ring (22), a clamping ring (19) is fixedly mounted on the lower end of the vertical rod (20), a disinfection block (18) is evenly mounted on the clamping ring (19), a liquid passing plate (17) is arranged below the liquid passing ring (15), and a second connecting pipe (16) is connected between the liquid passing plate (17) and the first connecting pipe (13).

2. The cleaning and disinfection equipment for gastroenterology CT examination according to claim 1 is characterized by: The movable member (8) is a U-shaped structure, a shaft is arranged between the movable member (8) and the crossbar (1), and a screw is installed between the shaft and the movable member (8).

3. The cleaning and disinfection equipment for gastroenterology CT examination according to claim 1, characterized in that: The material box (12) is equipped with a spray pump.

4. The cleaning and disinfection equipment for gastroenterology CT examination according to claim 1, characterized in that: The liquid-passing ring (15) is an arc-shaped structure, the interior of the liquid-passing ring (15) is hollow, the liquid-passing ring (15) is in communication with the first connecting pipe (13), and the inner wall of the liquid-passing ring (15) is a mesh structure.

5. The cleaning and disinfection equipment for gastroenterology CT examination according to claim 1, characterized in that: The clamping ring (19) is an arc-shaped structure, the mounting rod (14) is an L-shaped structure, the liquid-passing ring (15) does not interfere with the movement of the clamping ring (19), the inner wall of the clamping ring (19) is a sponge layer and is communicated with the disinfection block (18), the disinfection block (18) is a sponge, and the disinfection block (18) is impregnated with a quaternary ammonium salt disinfectant, a slow-release microcapsule structure is arranged in the sponge layer, the slow-release microcapsule is communicated with the disinfection block (18) through a capillary channel, and an anti-backflow check valve is arranged at the bottom of the disinfection block chamber to form an independent liquid supply circuit with the material box (12).

6. The cleaning and disinfection equipment for gastroenterology CT examination according to claim 1, characterized in that: The guide frame (23) is a circular structure, and the slip ring (22) and the guide frame (23) are slidably matched.

7. The cleaning and disinfection equipment for gastroenterology CT examination according to claim 1, characterized in that: The liquid-passing plate (17) is a hollow plate, the liquid-passing plate (17) is in communication with the second connecting pipe (16), and the top surface of the liquid-passing plate (17) is a mesh structure.

8. The cleaning and disinfection equipment for gastroenterology CT examination according to claim 1, characterized in that: The hydraulic cylinder (5) has a built-in pressure feedback module, and the pressure sensing unit is connected to the equipment control terminal via a wireless transmission module. The piston stroke of the hydraulic cylinder (5) and the pressure value are in a linear corresponding relationship.

9. The cleaning and disinfection equipment for gastroenterology CT examination according to claim 1, characterized in that: The mesh structure of the liquid-passing ring (15) adopts a gradient aperture design, with the aperture on the side close to the mounting rod (14) being 0.5 mm and gradually increasing to 2 mm away from the side, and the surface of the mesh is plated with a nano-silver coating.