A urinary system pressing and enhancing CT scanning pressurizing and restraining device
By designing a CT scan restraint device with restraint straps and pressure blocks, the problems of cumbersome operation and low stability of self-made pressure devices were solved. This enabled accurate positioning on different patient body types and improved the stability and accuracy of scan results, thereby enhancing patient comfort.
Patent Information
- Application Number
- CN202520776569.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-04-23
AI Technical Summary
In current urinary tract CT scans, the self-made pressurization device is cumbersome to operate, has low stability and applicability, and affects the scan results and patient comfort.
A CT scan restraint device was designed, comprising restraint straps, pressure blocks, and inflatable components. By adjusting the components and the elastic restraint straps, the pressure blocks can be accurately positioned on different patient body shapes, delaying contrast agent excretion and improving scan stability and accuracy.
It achieves accurate positioning on different patient body types, delays contrast agent excretion, improves the image quality and diagnostic accuracy of CT scans, and enhances the applicability of the device and patient comfort.
Smart Images

Figure CN224671521U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of CT enhancement scanning auxiliary devices, and in particular relates to a pressure restraint device for urinary system abdominal compression enhancement CT scanning. Background Technology
[0002] CT scans of the urinary system are mainly used to diagnose kidney stones, tumors, infections, and congenital malformations, assess traumatic injuries, assist in surgical planning and monitoring treatment effectiveness, guide interventional procedures such as kidney biopsy and abscess drainage, and assess vascular problems such as renal artery stenosis through CT angiography. It is an important tool for the diagnosis and treatment of urinary system diseases. Kidney stones often do not require treatment or can be treated conservatively in the general population, but for special groups such as pilots, early detection of kidney stones and determination of their nature are particularly important.
[0003] Currently, in order to improve the scanning effect of stones during enhanced CT scans of the urinary system, patients are usually placed in a supine position, and a self-made pressure device is used. For example, gauze is rolled into an oval shape, wrapped and fixed with medical tape, and then placed in the sacroiliac joint area on both sides of the patient during the scan. Finally, it is fixed to the front of the patient's abdomen with restraint straps to complete the scan. Although this method can improve the scanning effect, it is relatively cumbersome to operate. Due to its special manufacturing process, its stability is low, and its applicability and comfort to different patients are also low. Utility Model Content
[0004] The purpose of this invention is to provide a pressure restraint device for urinary tract abdominal compression enhanced CT scanning, which can improve image quality and ensure diagnostic accuracy.
[0005] The aforementioned urinary tract compression abdominal CT scan pressure restraint device includes a restraint belt, a pressure block is provided on the inner front wall of the restraint belt, and the pressure block has an elliptical structure. An adjustment component for moving the pressure block left and right is provided on the outer front wall of the restraint belt.
[0006] Furthermore, the pressure block is provided with a protective sleeve on its outer side for wrapping it, and the inner wall of the protective sleeve is a smooth surface.
[0007] Furthermore, the inner wall of the front side of the restraint band is provided with a groove for installing a pressure block. The depth of the groove is less than the thickness of the pressure block, and the protective sleeve is fixed at the groove opening and flush with the inner wall of the restraint band.
[0008] Furthermore, the adjustment component includes connecting ropes, which are respectively fixed to the left and right side walls of the pressure block. The bottom of the groove has through holes that communicate with each other. Each connecting rope located outside the through hole is provided with a limiting block to prevent the connecting rope from falling out of the through hole.
[0009] Furthermore, the pressure block has a hollow structure and is made of elastic material, and an inflation component for pressurizing the inside of the pressure block is provided on the outside of the restraint band.
[0010] Furthermore, the inflatable assembly includes an airbag, and the outer wall of the restraint band has a through groove that communicates with the groove. The airbag is located outside the through groove and is connected to the pressure block through a connecting pipe.
[0011] Furthermore, a fixed frame that communicates with the front and back is provided in the through groove. The fixed frame and the through groove are interference fit. The spacing between the fixed frame and the fixed frame is less than the thickness of the pressure block and greater than the diameter of the connecting pipe. The fixed frame is made of rigid material.
[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention, through the combination of restraint straps and pressure blocks, facilitates the placement of the pressure blocks at the level of the bilateral sacroiliac joints on the patient's abdomen during enhanced CT scans of the urinary system. This delays contrast agent excretion, allowing the contrast agent to be temporarily stored in the ureter, renal pelvis, and calyces, causing dilation of the renal pelvis and calyces. Post-processing techniques then ensure good contrast between the contrast agent and the lesion, facilitating the determination of the stone's location and its relationship to the renal pelvis and calyces. This ensures accurate detection and assessment of kidney stones. Furthermore, the adjustable components allow for adjustment of the pressure block's position according to different patients, enabling accurate placement in the sacroiliac joint region on the anterior abdomen of various patients. This enhances its applicability and improves the stability and accuracy of the scan results. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 The front view; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view at point B in the middle; The components in the diagram are named as follows: 1. Restraint strap; 2. Limiting block; 3. Connecting rope; 4. Protective sleeve; 5. Pressure block; 6. Fixing frame; 7. Connecting tube; 8. Airbag. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Example
[0015] This embodiment describes a pressure restraint device for urinary tract abdominal compression enhanced CT scanning, such as... Figure 1 As shown, the device includes a restraint band 1, with a pressure block 5 on the inner wall of the front side. The pressure block 5 has an elliptical structure, which facilitates its placement in the bilateral sacroiliac joint area of the patient during scanning, delaying the excretion of the contrast agent and allowing the contrast agent to be temporarily stored in the ureter, renal pelvis, and calyces. Then, post-processing techniques are used to make the contrast agent and the lesion show good contrast, which is beneficial for determining the location of the stone and its relationship with the renal pelvis and calyces, ensuring accurate detection and assessment of kidney stones.
[0016] The outer wall of the front side of the restraint band 1 is provided with an adjustment component for moving the pressure block 5 left and right. This makes it easy to adjust the position of the pressure block 5 according to different patients during use, so that the pressure block 5 can be accurately placed in the sacroiliac joint area on the front side of the abdomen of different patients, making it more applicable and improving the stability and accuracy of the scanning results. The constraint strap 1 is made of elastic material and can stretch to a certain extent, and the two ends of the constraint strap 1 are connected by Velcro.
[0017] The pressure block 5 is provided with a protective sleeve 4 on its outer side to increase friction with the patient's body and improve the stability of the pressure block 5 in applying pressure to the bilateral sacroiliac joint area on the front of the patient's abdomen. The inner wall of the protective sleeve 4 is smooth, which helps to reduce the friction between the pressure block 5 and the protective sleeve 4, thereby improving the smoothness of the adjustment component when adjusting the position of the pressure block 5 left and right. This also makes it easier to fine-tune the position of the pressure block 5 after it is fixed to the patient's body by the restraint strap 1, which to a certain extent reduces the difficulty of medical staff's work and improves the accuracy of the scanning results.
[0018] The inner wall of the front side of the constraint band 1 is provided with a groove for installing the pressure block 5. The depth of the groove is less than the thickness of the pressure block 5, and the protective sleeve 4 is fixed at the groove opening and flush with the inner wall of the constraint band 1. This improves the stability when adjusting the position of the pressure block 5 and avoids folding or squeezing the protective sleeve 4 and aggravating the wear when adjusting the pressure block 5.
[0019] like Figure 1 and Figure 3 As shown, the adjustment component includes a connecting rope 3, which is fixed to the left and right side walls of the pressure block 5 respectively. The bottom of the groove has a through hole that communicates with the top and bottom. Each connecting rope 3 located outside the through hole is provided with a limiting block 2 to prevent the connecting rope 3 from falling out of the through hole. This makes it easy to adjust the position of the pressure block 5 by pulling the connecting ropes 3 on the left and right sides of the pressure block 5, and then fix the connecting rope 3 by the limiting block 2, thereby fixing the position of the pressure block 5. The limiting block 2 uses an existing rope buckle, which makes it more convenient to use and has a better fixing effect. In actual use, the position of the pressure block 5 can be further fixed by tying the connecting rope 3 on the outside of the limiting block 2 to prevent the connecting rope 3 from loosening when the patient twists his body, thus affecting the accuracy of the scanning results. The diameter of the through hole is smaller than the minimum diameter of the limiting block 2, so as to prevent the connecting rope 3 from pulling the limiting block 2 into the through hole or groove during use. The adjustment assembly may also include a connecting rod. The outer wall of the constraint band 1 located at the bottom of the groove has a channel that communicates with the front and back. A limiting ring that is threadedly fitted onto the connecting rod located outside the channel is provided. The width of the channel is smaller than the diameter of the limiting ring. To improve the fixing effect, a rubber ring is provided between the limiting ring and the constraint band 1.
[0020] like Figure 1 , Figure 2 and Figure 4 As shown, the pressure block 5 has a hollow structure and is made of elastic material. An inflation component for pressurizing the inside of the pressure block 5 is provided on the outside of the restraint band 1, which can further improve the pressure effect on the patient and improve its applicability. When in use, the size of the pressure block 5 can be adjusted according to the actual situation of the patient, and the pressure intensity can be flexibly adjusted according to the physical condition of different patients, so as to ensure the accuracy of the scanning results while improving the patient's comfort. The pressure block 5 is made of rubber, polyurethane, or thermoplastic polyurethane.
[0021] The inflation assembly includes an airbag 8. The outer wall of the restraint band 1 has a through groove that communicates with the groove. The airbag 8 is located outside the through groove and is connected to the pressure block 5 through a connecting pipe 7. This allows the pressure block 5 to be flexibly inflated or deflated by the airbag 8 to make it suitable for different patients and enhance the scanning effect. The inflation assembly may also include an air gun or an air pump. A sealing block is provided on the connecting pipe 7 to seal it. When in use, the air gun or air pump is used to inflate the inside of the pressurizing block 5 to expand it to a suitable size. Then, the air gun or air pump is disassembled and sealed by the sealing block for scanning. The airbag 8 is threadedly connected to the connecting pipe 7, which facilitates the replacement and maintenance of the pressure block 5 or the airbag 8.
[0022] The through groove is provided with a front and rear through fixing frame 6. The fixing frame 6 is interference fit with the through groove. The spacing inside the fixing frame 6 is less than the thickness of the pressure block 5 and greater than the diameter of the connecting pipe 7. The fixing frame 6 is made of rigid material, which makes it easy to block the pressure block 5 to prevent the pressure block 5 from protruding from the through groove or even falling off after inflation and expansion, thus affecting the pressurization effect. It also makes it easy to remove the pressure block 5 for maintenance or replacement by disassembling the fixing frame 6. To enhance the fixing effect and prevent the fixing frame 6 from being pushed out of the through groove when the pressure block 5 expands, a stop block is provided on the outer wall of the constraint band 1 to fix the fixing frame 6 in the through groove. The stop block is hinged to the outer wall of the constraint band 1 and swings up and down. When the stop block is in the area of the fixing frame 6, it fits tightly with it.
[0023] Working principle: During CT contrast-enhanced scan, first, the restraint strap 1 is placed on the front of the patient's abdomen. Then, the position of the pressure block 5 is initially adjusted so that it is placed in the bilateral sacroiliac joint area on the patient's abdomen. Then, the restraint strap 1 is fixed, and the patient is placed in a supine position on the CT bed. Then, the position of the pressure block 5 is precisely adjusted again by pulling the connecting rope 3. After the adjustment is completed, its position is fixed by the limiting block 2. Then, the airbag 8 is pressed according to the actual situation of different patients, and the pressure intensity is controlled by adjusting the size of the pressure block 5. During maintenance, first, the airbag 8 is separated from the connecting tube 7, then the fixing frame 6 is removed from the through groove, and then the pressure block 5 in the groove is removed.
Claims
1. A pressure restraint device for urinary tract abdominal compression enhanced CT scan, comprising a restraint strap (1), characterized in that: The inner wall of the front side of the constraint band (1) is provided with a pressure block (5), and the pressure block (5) is elliptical in shape. The inner wall of the front side of the constraint band (1) is provided with a groove for installing the pressure block (5). The depth of the groove is less than the thickness of the pressure block (5). The protective sleeve (4) is fixed at the groove opening and flush with the inner wall of the constraint band (1). The outer wall of the front side of the constraint band (1) is provided with an adjustment component for driving the pressure block (5) to move left and right. The adjustment component includes a connecting rope (3), which is fixed to the left and right side walls of the pressure block (5) respectively. The bottom of the groove has a through hole that is open from top to bottom. The connecting rope (3) located outside the through hole is provided with a limiting block (2) to prevent the connecting rope (3) from falling out of the through hole.
2. The urinary tract compression abdominal enhancement CT scan pressure restraint device according to claim 1, characterized in that: The pressure block (5) is provided with a protective sleeve (4) for wrapping it, and the inner wall of the protective sleeve (4) is a smooth surface.
3. The urinary tract compression abdominal enhancement CT scan pressure restraint device according to claim 1, characterized in that: The pressure block (5) is a hollow structure and is made of elastic material. An inflation component for pressurizing the inside of the pressure block (5) is provided on the outside of the restraint band (1).
4. The urinary tract abdominal compression enhanced CT scan pressure restraint device according to claim 3, characterized in that: The inflatable assembly includes an airbag (8), and the outer wall of the restraint band (1) is provided with a through groove that is connected to the groove. The airbag (8) is located outside the through groove and is connected to the pressure block (5) through a connecting pipe (7).
5. The urinary tract compression abdominal enhancement CT scan pressure restraint device according to claim 4, characterized in that: The through groove is provided with a front and rear connected fixing frame (6). The fixing frame (6) is interference fit with the through groove. The spacing inside the fixing frame (6) is smaller than the thickness of the pressure block (5) and larger than the diameter of the connecting pipe (7). The fixing frame (6) is made of rigid material.