Pressurizing belt for thoracoabdominal CT (Computed Tomography) examination

Abstract

The invention belongs to the technical field of pressurizing belts, and discloses a pressurizing belt for thoracico-abdominal CT examination, which comprises a chest belt, an adhesive belt, an adhesive surface, a magic tape, an abdominal belt and a dehumidifying and degerming paste, sticking belts are connected to left and right sides of the chest belt; the right side of the adhesive tape is glued with the adhesive surface. The bottom of the chest belt is connected with the belly belt through magic tapes. The center of the chest belt and the belly belt are glued with dehumidifying and sterilizing pastes. The pressurizing belt for thoracico-abdominal CT examination is used for thoracico-abdominal CT examination of a patient with insufficient breath, artifacts caused by respiratory movement are effectively reduced, and therefore the definition and accuracy of abdominal visceral organ development are improved. The belly belt and the chest belt are integrated, the front is divided into the upper part and the lower part, and the belly belt and the chest belt can be used separately through the hook-and-loop fasteners.

Description

Technical Field

[0001] The invention belongs to the technical field of pressure belts, and in particular relates to a pressure belt used for chest and abdomen CT examinations. Background Art

[0002] Thoracic and abdominal CT, or computed tomography of the chest and abdomen, is an advanced medical imaging technique that plays a key role in disease diagnosis. CT scans the chest and abdomen using X-ray beams to scan slices of a defined thickness. Detectors receive the X-rays after they pass through the body, converting them into visible light. Photoelectric converters then convert them into electrical signals, which are then processed by computers to produce clear cross-sectional images. Continuous scanning and image reconstruction can produce multi-planar, three-dimensional images, enabling doctors to observe organ structures and pathologies from various angles. Chest CT scans clearly display structures such as the lungs, trachea, bronchi, and mediastinum. They can accurately detect lung inflammation, tuberculosis, and tumors, determining the size, location, and relationship of tumors to surrounding tissues. They can also reveal lesions such as tracheal and bronchial stenosis and obstruction. Abdominal CT scans are highly effective for examining solid organs such as the liver, gallbladder, pancreas, spleen, and kidneys. They can diagnose liver tumors, cirrhosis, gallstones, cholecystitis, pancreatitis, pancreatic tumors, as well as kidney cysts, tumors, and stones. However, when patients who cannot hold their breath sufficiently undergo chest and abdominal CT scans, artifacts caused by frequent respiratory movements may cause unclear and inaccurate visualization of the abdominal organs.

[0003] Through the above analysis, the problems and defects of the existing technology are as follows:

[0004] Patients who cannot hold their breath may undergo chest and abdominal CT scans, which may cause artifacts caused by frequent respiratory movements, resulting in unclear and inaccurate visualization of abdominal organs. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention provides a compression belt for chest and abdominal CT examination.

[0006] The present invention is achieved in that a compression belt for chest and abdominal CT examination comprises:

[0007] Chest strap, adhesive strap, adhesive surface, Velcro, abdominal strap, dehumidifying and sterilizing patch;

[0008] The left and right sides of the chest strap are connected with adhesive tapes; the right side of the adhesive tape is glued to the adhesive surface.

[0009] Furthermore, 50mm wide industrial-grade nylon Velcro is sewn on the bottom edge of the chest strap and the top edge of the abdomen strap, and a pair of lightweight polyester buckles are added on the outside for quick positioning; all components are made of metal-free, low-density polyester fiber and polyurethane materials.

[0010] Furthermore, the dehumidification and sterilization patch is a honeycomb hydrophilic gel pad. The core filling is composed of medical-grade silica gel microspheres and weak anionic silver ion sustained-release powder. The gel pad linear density is less than 0.15g / cm 3 , low atomic number, basically transparent to X-rays, and covered with a 25μm TPU film on the surface.

[0011] Furthermore, the abdominal belt adopts a segmented overlapping + gradient scale structure. The outer side of the main belt is evenly hot-pressed with 5cm grid scale lines, and a 20cm long elastic adhesive tape is sewn into the end. It can be freely overlapped and adjusted within the waist circumference of 70cm-130cm. The edge is covered with a 1mm soft TPU protective strip to ensure uniform force and no marks under high tension.

[0012] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0013] (1) Existing CT imaging aids lack a dedicated external compression device to improve the clarity of abdominal organ imaging. The present invention uses an adjustable chest and abdominal compression mechanism to effectively control the dynamic artifacts caused by respiratory movement on the image, significantly improving the stability of the scanning area.

[0014] The present invention is different from the traditional point-type pressure application method of a stop belt or a restraining bandage. It adopts an overall surrounding pressure application structure to form a stable load-wrapping field, which restricts the mechanical movement of the thoracic and abdominal cavities from the outside, and cooperates with the dehumidification and sterilization patch to adjust the bonding surface environment, further ensuring the scanning stability of the organ morphology and position and the comfort of the patient, providing a clear and unified image basis for multi-phase development of the thoracic and abdominal organs.

[0015] (2) The present invention is expected to have significant promotion potential in the market for consumables of imaging equipment, especially for the middle-aged and elderly people and people with insufficient respiratory function, and has good clinical adaptability and economic benefit conversion capabilities.

[0016] According to the medical imaging diagnostic process, CT image clarity is a key factor in interpreting lesions in organs such as the liver, gallbladder, pancreas, and stomach. Traditionally, this system relies on the patient's independent breath-holding, which is uncertain. However, this compression belt can be used as a standardized auxiliary tool, directly integrated into the CT scanning process. It offers the cost advantage of a single investment for multiple uses and can be universally deployed with different types of equipment, demonstrating high commercial value and industrial feasibility.

[0017] (3) The combination of "Velcro separation structure + replaceable dehumidifying patch" proposed in the present invention provides a highly flexible engineering sample that complies with hygiene control standards for the structural design of medical wearable devices, solving the problem that existing pressurizing devices cannot be modularly cleaned and individually adjusted.

[0018] This structure allows for rapid replacement of consumables and local cleaning operations without having to replace the main structure. It adapts to process control such as disinfection, ventilation, and individual switching in high-frequency CT operating environments, greatly improving the life cycle and sanitary safety of pressurized equipment in hospital use scenarios, and complies with the national development requirements for medical assistive devices with "detachable structure + consumables isolation control."

[0019] (4) To address the problem of local organ dynamic blur in CT imaging, the present invention provides a non-invasive and mechanically stable control method, which significantly optimizes the temporal consistency and spatial reconstruction accuracy of CT images.

[0020] During multi-slice spiral CT scanning and multi-phase imaging, mediastinal shifts and gastrointestinal deformation caused by minor respiratory movements are the main causes of reconstruction errors. Traditional methods, such as medication suppression or verbal breath-holding instructions, struggle to ensure consistency. This device utilizes a stable, adjustable external wrapping force field, enabling passive patient cooperation. This allows for greater reconstruction consistency and diagnosability of the original image data, thus improving diagnostic image quality.

[0021] (5) The present invention introduces the microenvironment control component of "dehumidification and sterilization patch" into the field of medical pressurized structure design for the first time, breaking through the technical vision of traditional imaging equipment supporting consumables that only focus on functional compression.

[0022] Patients wearing compression devices for extended periods of time are prone to localized sweating and damp skin, which can affect the wearing experience and make cleaning more difficult. This device incorporates a dehumidifying and antibacterial patch containing ingredients such as silver ions or chitosan. Through physical moisture absorption and a synergistic antibacterial effect, it actively regulates the moisture and heat state of the fitting interface, improving comfort while effectively inhibiting bacterial growth and fluid accumulation, thereby enhancing device safety and user acceptance.

[0023] (6) The technical solution of the present invention solves the practical problem of "improving the stability of chest and abdominal CT images without drug intervention" that has long been unattainable in the field of clinical imaging.

[0024] While the idea of improving scanning accuracy through external constraints has long existed in clinical practice, the lack of a practical and well-designed implementation has prevented the development of an industrialized product. This invention, by integrating structural mechanics with ergonomics, achieves a precisely adjustable compression structure. Through multi-point adjustment mechanisms such as Velcro and adhesive surfaces, it achieves a unified approach to adaptability, repeatability, and comfort, representing a significant breakthrough in existing technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of a compression belt for chest and abdominal CT examination provided by an embodiment of the present invention.

[0026] Figure 2This is a view of the inner side of a compression belt for chest and abdominal CT examination provided by an embodiment of the present invention.

[0027] In the picture: 1. Chest strap; 2. Adhesive strap; 3. Adhesive surface; 4. Velcro; 5. Abdominal strap; 6. Dehumidifying and sterilizing patch. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] like Figure 1 、 Figure 2 As shown, an embodiment of the present invention provides a compression belt for chest and abdominal CT examination, comprising:

[0030] Chest strap 1, adhesive strap 2, adhesive surface 3, Velcro 4, abdominal strap 5, dehumidifying and sterilizing patch 6;

[0031] The left and right sides of the chest strap 1 are connected to the adhesive strap 2; the right side of the adhesive strap 2 is glued to the adhesive surface 3.

[0032] The bottom of the chest belt 1 provided in the embodiment of the present invention is connected to the abdomen belt 5 via a Velcro 4 .

[0033] The dehumidifying and sterilizing patch 6 is glued to the center of the chest band 1 and the abdomen band 5 provided in the embodiment of the present invention.

[0034] The present invention's compression belt for chest and abdominal CT examinations uses adhesive tape 2 to secure a chest belt 1 and an abdominal belt 5 to the chest and abdomen, respectively. It is used for chest and abdominal CT examinations in patients with breath-holding difficulties, effectively reducing artifacts caused by respiratory movement, thereby improving the clarity and accuracy of abdominal organ imaging. The present invention's compression belt for chest and abdominal CT examinations integrates an abdominal belt 5 and a chest belt 1, with upper and lower front sections that can be separated using Velcro 4. A dehumidifying and sterilizing patch 6 removes moisture and bacteria.

[0035] 1. External pressurization mechanism in respiratory movement inhibition

[0036] This compression belt applies dual pressure through both the chest and abdomen straps, acting on the outer surfaces of the thorax and abdominal wall, restricting the upward and downward movement of the diaphragm and creating a mechanically restraining field within the thoracic and abdominal cavities. This applied pressure effectively suppresses volume changes in the thoracic and abdominal cavities driven by passive respiration, minimizing positional shifts in organs such as the mediastinum and gastrointestinal tract during CT acquisition and improving the spatial stability of the image.

[0037] 2. Local stable structure suppression path for image motion artifacts

[0038] During CT scanning, the patient's slight abdominal breathing can cause blurred and misplaced edges of organs in the cross-sectional scan. This device uses adhesive tape to form a wraparound package, which is fixed to the patient's body surface by joining the hook surface and the hair surface, generating a stable external support force field, reducing the amplitude of visceral movement, and thus reducing the impact of motion artifacts on the accuracy of density reconstruction.

[0039] 3. The Velcro separation structure is designed for flexible application scenarios

[0040] The chest and abdomen straps are connected by Velcro straps located on the front of the sleeve, allowing for quick separation to create either chest or abdomen compression positions. This structure accommodates regional imaging needs, allowing technicians to selectively apply pressure based on CT scan targets, and broadens the compression belt's adaptability during clinical procedures.

[0041] 4. The regulation mechanism of the dehumidification and sterilization patch on the microclimate of the scanning environment

[0042] The dehumidifying and sterilizing patch is a functional additional unit that is affixed to the inner surface of the chest and abdominal belt that contacts the skin. Through the synergistic effect of physical hygroscopic materials (such as silica gel particles, molecular sieve complexes) and antibacterial ingredients (such as silver ions, chitosan derivatives), it can achieve humidity control and microbial load inhibition of the local skin surface microenvironment, thereby improving the patient's wearing comfort and cleanliness.

[0043] 5. Elastic design and mechanical adaptability of the pressure belt structure

[0044] The chest and abdominal straps utilize a combination of elastic fabric and non-elastic adhesive tape to achieve a balance of rigid stability and flexible support. The fabric layers adapt to the patient's chest and abdominal circumference, creating a distributed elastic load to avoid discomfort caused by concentrated pressure while maintaining an optimal overall pressure range (recommended 15–30 mmHg).

[0045] 6. Multi-directional adjustment mechanism of the pasting system

[0046] The combination of adhesive strip 2 and adhesive surface 3 utilizes a multi-point layout, allowing for fine-tuning in both the vertical and front-to-back directions to meet the wrapping needs of patients of varying body types, ensuring uniform pressure application and a precise fit. This structure also supports rapid donning and multiple reuse, facilitating rapid deployment of clinical procedures.

[0047] 7. Paths to Improve Image Acquisition Consistency and Reconstruction Accuracy

[0048] The restriction structure formed by this compression belt can maintain spatial consistency of the same fault position in the time dimension when the CT device completes multi-layer spiral scanning, reduce the fault overlap error caused by organ movement, and provide a high-quality original image basis for post-processing operations such as multi-planar reconstruction (MPR) and volume reconstruction (VR).

[0049] 8. Systematic consideration of structural disassembly and infection control

[0050] The Velcro-style chest and abdomen separation design and replaceable dehumidification and sterilization stickers achieve functional separation between structural disassembly and consumables replacement, effectively reducing the risk of cross-infection, enhancing the level of hygiene control in medical facilities, and complying with the technical specifications of the hospital's high-frequency equipment rotation and disinfection process.

[0051] To completely eliminate the risk of metal artifacts, a combination of double-sided Velcro and polymer buckles is used: 50mm-wide industrial-grade nylon Velcro is sewn onto the bottom edge of the chest strap and the top edge of the abdomen strap, and a pair of lightweight polyester buckles are added on the outside for quick positioning. All components are made of metal-free, low-density polyester fiber and polyurethane. Testing has shown that the CT linear attenuation coefficient at 120kVp is close to that of soft tissue, ensuring that high-density artifacts are eliminated within the scanning field of view.

[0052] The dehumidifying and sterilizing patch is a "honeycomb hydrophilic gel pad". The core filling is composed of medical-grade silica gel microspheres and weak anionic silver ion sustained-release powder. The gel pad linear density is less than 0.15g / cm 3 , low atomic number, and basically transparent to X-rays; at the same time, the surface is covered with a 25μm TPU film, which not only ensures moisture permeability but also prevents powder from escaping. Verification shows that there is no detectable interference with CT image acquisition and quantitative measurement.

[0053] To accommodate patients of varying body types, the abdominal strap features a "segmented overlap + gradient scale" construction: 5cm scale lines are heat-pressed evenly on the outside of the main strap, and a 20cm elastic adhesive tape is sewn into the end, allowing for flexible overlap and adjustment within a waist circumference range of 70cm–130cm. The edges are protected by a 1mm soft TPU strip to ensure uniform force distribution and prevent constriction under high-stretch conditions. The chest strap uses the same overlapping adjustment scheme, and the two straps work together to quickly fit patients of varying sizes without the need for tailoring.

[0054] Implementation plan 1: integrated elastic wrap + front-opening Velcro partition structure

[0055] (1) This solution adopts an integrated elastic fabric structure with upper and lower partitions. The chest strap and abdominal strap are formed of continuous elastic material, and Velcro is set on the front to achieve regional separation control.

[0056] Its structure ensures a perfect fit and elastic feedback during wear, automatically adapting to different patient chest and abdominal circumferences. Velcro straps are positioned along the anterior axis of the body, allowing technicians to quickly perform regional release or independent compression operations. This effectively accommodates multiple scan scenarios, including chest and abdominal scans, or combined scans, enhancing the device's clinical adaptability and controllability.

[0057] (2) The compressive load in this scheme is achieved through the coordinated implementation of fabric tension and a fixed adhesive system to form an adjustable uniform pressure field, limiting changes in chest and abdominal volume.

[0058] The fabric's circumferential tension acts as a distributed load on the body surface. Combined with a multi-point adhesive tape structure, it creates a stable fit at different locations, minimizing pressure shifts or localized excessive pressure caused by uneven tension while also avoiding secondary burden on the skin. This structure strikes a balance between patient comfort and device stability, and is key to enabling long-term scanning assistance.

[0059] (3) This embodiment is suitable for high-resolution CT scanning that requires stable posture control throughout the entire process, such as dynamic enhancement of abdominal tumors or multi-phase hepatobiliary imaging. It achieves spatial consistency through mechanical restriction to ensure image reconstruction accuracy.

[0060] The Velcro partition structure can release pressure in specific areas as needed at different development stages, allowing specific anatomical areas to be in the optimal resting state. This is particularly critical in high-density abdominal imaging, where it can effectively reduce disturbances to the image caused by gastrointestinal motility or diaphragmatic movement. It is an important alternative mechanism to conventional methods that rely on patient breath-holding cooperation.

[0061] Implementation Option 2: Modular Dehumidification and Sterilization Patch + Multi-point Adhesion Positioning Mechanism

[0062] (4) This solution uses a replaceable dehumidification and sterilization patch module, which is designed as a detachable adhesive structure and is set on the inner lining of the chest belt and the abdominal belt corresponding to the high humidity area on the body surface.

[0063] Each dehumidifying and antibacterial patch is constructed from a functional porous fiber substrate loaded with moisture-absorbing and antibacterial materials (such as molecular sieves and silver ion-loaded gels). A Velcro structure allows for precise positioning and quick replacement within the fabric. This structure separates and standardizes cleanliness management and microenvironment regulation functions, reducing the risk of skin discomfort and device contamination caused by sweat or bacterial accumulation.

[0064] (5) The multi-point adhesion positioning mechanism is designed with a two-way fine-tuning arrangement up and down. Through the preset calibration area and the hook-loop structure, it supports quick donning and doffing and individual adjustment.

[0065] Technicians can adjust the tension distribution of the compression band based on the patient's body shape and the target area being scanned, avoiding the "loose bands" or "dead spots" that can occur with traditional unidirectional adhesive structures on patients with complex body shapes, thereby improving structural stability and functional durability. Multi-point positioning also facilitates position reproducibility during repeated use, facilitating consistent transfer of standardized operating procedures between different technicians.

[0066] (6) This solution is particularly suitable for infection control and consumables optimization paths in high-frequency use environments in hospitals. Its structural design facilitates the functional decoupling of consumables replacement and main body reuse.

[0067] Combined with a modular design, the main structure can be reused during daily high-temperature or UV disinfection processes, while the dehumidifying patch modules are low-cost, disposable components that can be replaced daily or individually, significantly reducing infection control pressure and lowering hospital operating costs. This structure significantly differs from existing integrated pressurized equipment, which is difficult to disinfect, and provides a clear basis for patentability.

[0068] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with this technical field within the technical scope disclosed by the present invention and within the spirit and principles of the present invention should be covered by the scope of protection of the present invention.

Claims

1. A compression belt for chest and abdominal CT examination, characterized in that: The compression belt for chest and abdomen CT examination includes: Chest strap, abdominal strap, adhesive strap, adhesive surface, Velcro, dehumidifying and sterilizing patch; The left and right ends of the chest strap are respectively connected to the adhesive tape, and one side of the adhesive tape is glued to the adhesive surface; The bottom of the chest belt is connected to the abdominal belt via the Velcro; The dehumidifying and sterilizing patches are glued to the central parts of the chest belt and the abdominal belt respectively; The Velcro is a resin-type open Velcro and is arranged at the front boundary of the chest strap and the abdomen strap.

2. The pressure belt according to claim 1, wherein: The adhesive tape is a hook and loop structure made of a fabric strip, comprising a hook surface on one side and a fleece surface on the other side.

3. The pressure belt according to claim 1, wherein: The chest belt and the abdomen belt are made of elastic fabric and a non-stretchable lining layer, and the elastic fabric and the non-stretchable lining layer are fixed by sewing.

4. The pressure belt according to claim 1, wherein: The joints between the adhesive tape, the chest tape and the abdomen tape are of a hemming and sewing structure, and the adhesive surface is a high-adhesion surface formed by a hot-melt adhesive coating.

5. The pressure belt according to claim 1, wherein: The bottom edge of the chest strap and the top edge of the abdomen strap are sewn with 50mm wide industrial-grade nylon Velcro, and a pair of lightweight polyester buckles are added to the outside for quick positioning; all components are made of metal-free, low-density polyester fiber and polyurethane materials.

6. The pressure belt according to claim 1, wherein: The dehumidifying and sterilizing patch is a honeycomb hydrophilic gel pad. The core filling is composed of medical-grade silica gel microspheres and weak anionic silver ion sustained-release powder. The linear density of the gel pad is less than 0.15g / cm 3 , low atomic number, basically transparent to X-rays, and covered with a 25μm TPU film on the surface.

7. The pressure belt according to claim 1, wherein: The abdominal belt adopts a segmented overlapping + gradient scale structure. The outer side of the main belt is evenly hot-pressed with 5cm grid scale lines. A 20cm long elastic adhesive tape is sewn into the end. It can be freely overlapped and adjusted within the waist circumference of 70cm-130cm. The edge is covered with 1mm soft TPU protective strips.

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