Auxiliary fixing device for newborn radiography body position

Abstract

The invention relates to the technical field of medical auxiliary instruments, in particular to a newborn radiography body position auxiliary fixing device which comprises a moving platform and a lifting platform arranged at the top of the moving platform, and further comprises a tightening mechanism arranged on the rear side of the top of the lifting platform and two body position clamping mechanisms arranged on the rear side of the top of the lifting platform. The problems that in the prior art, most devices are made of solid acrylic plates to be of a cylindrical closed structure, the overall weight is large, movement capacity is not achieved, operation is tedious and depends on an external assisting device, and the cost is low are solved. The problems that fixing, carrying, operation and the like of a child patient are limited, the examination process is blocked, diagnosis and treatment are delayed, binding force cannot be accurately controlled, the nursing difficulty is increased, the intestinal form is possibly interfered and image judgment is influenced due to increase of abdominal pressure, and the adaptability is poor are solved.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary device technology, specifically to a neonatal X-ray positioning and fixation device. Background Technology

[0002] Necrotizing enterocolitis (NEC) is the most common gastrointestinal emergency in newborns, especially premature and low birth weight infants. Its pathogenesis is related to multiple factors, including intestinal bacterial infection, intestinal mucosal damage, and hypoxia-ischemia. The disease has a rapid onset and progression, with typical clinical manifestations including abdominal distension, vomiting, and bloody stools. Severe cases can lead to complications such as intestinal perforation, peritonitis, and toxic shock, resulting in a persistently high mortality rate. Even those infants who survive often face long-term complications such as intestinal stenosis and short bowel syndrome, causing long-term adverse effects on growth and development. Therefore, early diagnosis and early treatment are crucial for reducing mortality and improving prognosis in clinical practice.

[0003] Dynamically assessing the progression of intestinal lesions and promptly determining surgical indications are core aspects of NEC diagnosis and treatment, and abdominal standing X-rays are a routine and crucial imaging tool for achieving this goal. They clearly display characteristic features such as intestinal gas distension, intestinal wall thickening, widening of interstitial spaces, and fluid levels, providing direct evidence for early diagnosis, disease grading, and surgical decisions. Because NEC exhibits significant dynamic changes, clinicians often need to repeat abdominal standing X-rays multiple times to monitor lesion progression based on fluctuations in the child's vital signs, degree of abdominal distension, and laboratory indicators. This places extremely high demands on the timeliness and efficiency of the examination.

[0004] Newborns, especially premature infants, have limited independent movement and fragile vital signs. Furthermore, infants with NEC often experience abdominal distension and discomfort, making them highly susceptible to positional changes during examinations. Abdominal X-rays in a standing position require strict postural stability; any shift in the infant's position can lead to blurred images, increased artifacts, and impaired identification of key features such as bowel morphology and air-fluid levels. It can also result in missed or misdiagnosed cases, delaying surgical intervention. Therefore, a reliable positioning device is essential for ensuring accurate examination and precise diagnosis and treatment of NEC.

[0005] Chinese Patent Publication No. CN114931392B discloses a newborn-specific upright position radiograph fixing device, including a base plate. A lower limb support airbag is disposed on the lower part of the front side of the base plate, and a movable plate is disposed on the upper part of the front side of the base plate. The movable plate is in close contact with the base plate, and a screw is rotatably installed on the top of the base plate. This newborn-specific upright position radiograph fixing device can directly use the upper limb support airbag and the lower limb support airbag to fix the newborn's position, so as to provide stable and efficient upright position radiographs. In addition, during the process of fixing the newborn's position, the use of a soothing air intake component allows the upper limb support airbag and the lower limb support airbag to expand and fix the position while providing effective tactile soothing to the newborn. At the same time, the use of a hot air mechanism in conjunction with a constant pressure relief valve mechanism can continuously provide hot air to the upper limb support airbag and the lower limb support airbag to ensure that they are kept warm at a comfortable temperature for the newborn.

[0006] However, most of the neonatal radiography fixation devices described above are one-piece structures made of acrylic sheets. While they can initially meet the requirements for positional restriction, they have many shortcomings in terms of adaptability, operability, comfort, and safety, and are no longer suitable for the diagnosis and treatment needs of critical care patients such as those with NEC. The specific problems are as follows: 1. Made of solid acrylic sheet, the equipment is heavy and immobile, requiring 2-3 medical staff to move it for each examination. Transporting it between the ward and radiology department is time-consuming and laborious. NEC patients often experience rapid disease progression and require urgent imaging follow-ups; delays during transport could cause them to miss the optimal treatment window. Furthermore, the lack of stable support during transport poses a risk of falls, especially for vulnerable children with concurrent infections or poisoning symptoms.

[0007] 2. The treatment often employs a cylindrical, enclosed structure. When securing the child, the child must be lowered into the bottom pelvic support through a narrow opening at the top, severely limiting the operating space. The securing clips on both sides of the pelvic support are difficult to install, requiring repeated adjustments to achieve effective fixation. A single operation often takes more than 10 minutes. Due to the complexity of the procedure, clinical staff often require the presence of family members to assist in limb immobilization. However, most family members cannot be on call 24 hours a day, easily disrupting the examination process and further delaying diagnosis and treatment.

[0008] 3. The device uses pre-drilled holes to bind the child's legs with rubber bands, posing two risks: First, the binding force is difficult to control precisely; too tight a binding can compress blood vessels, obstructing blood circulation in the lower limbs and causing local ischemia or tissue damage, while too loose a binding can fail to restrict limb movement, leading to postural deviation. Second, the rigid pull and friction of the rubber band can easily cause the child to cry violently, increasing the difficulty of care and potentially affecting intestinal morphology due to increased abdominal pressure, interfering with imaging interpretation. Furthermore, the parts of the device that come into contact with the child are made of rigid acrylic material, lacking cushioning design, and prolonged fixation can easily lead to pressure sores on the buttocks, heels, and other areas.

[0009] 4. Significant differences in body size exist among newborns. Premature infants can weigh less than 1 kg, while full-term infants can weigh 4-5 kg, and their leg length and trunk proportions vary considerably. However, the traditional device's fixed buttock position is not adjustable. For infants with long legs, this forces their legs to bend and curl up, exacerbating discomfort and crying. For smaller premature infants, the large gaps in the device prevent effective positioning, leading to unstable posture. This "one-size-fits-all" design is ill-suited to infants with different physiological characteristics, directly impacting the quality and efficiency of examinations.

[0010] 5. Material and structural design affect image quality. Some traditional devices have uneven material density or structural designs that do not take into account the X-ray penetration requirements, which can easily produce artifacts during imaging. Artifacts can interfere with the identification of key NEC lesion signs such as intestinal wall thickening and air-fluid levels, which may lead to missed or misdiagnosis and affect the judgment of the condition and surgical decisions. Summary of the Invention

[0011] The purpose of this invention is to provide a neonatal X-ray positioning and fixation device that overcomes the limitations of existing neonatal X-ray positioning and fixation devices, which are mostly made of solid acrylic sheets in a cylindrical closed structure. These devices are heavy, immobile, cumbersome to operate, and dependent on external assistance devices, thus restricting the fixation, transportation, and operation of the infant. This can easily lead to obstruction of the examination process, delays in diagnosis and treatment, unreasonable fixation methods, an imbalance between comfort and safety, and inaccurate control of restraint force, which increases the difficulty of care and may interfere with intestinal morphology due to increased abdominal pressure, affecting image interpretation. In addition, their adaptability is poor, failing to meet the diverse fixation needs of neonates with different body shapes, and failing to achieve effective positioning, further leading to unstable positioning, prolonged imaging time, and affecting image quality.

[0012] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is as follows: A neonatal X-ray positioning and fixation device was designed, employing a modular "layered" design with a clear overall structure and well-defined functional zones. Specifically, it consists of two main parts: an upper neonatal fixation and X-ray lifting platform and a lower movable platform. This design ensures both the stability of the infant's position and ease of movement, while also allowing for adaptation to infants of different body types through adjustable height. The specific details are as follows: A neonatal X-ray positioning and fixation device includes a movable platform and a lifting platform disposed on top of the movable platform, and further includes: A tightening mechanism is located on the rear side of the top of the lifting platform; The body positioning clamping mechanism is provided in two sets, located on the left and right sides of the tightening mechanism respectively, and is installed on the top of the lifting platform via a movable bracket.

[0013] Preferably, a circular hollow area is provided at the center of the top of the lifting platform, and a seat located behind the circular hollow area is installed in the circular hollow area through a crossbeam; The tightening mechanism is located on the rear side of the circular hollow area to tighten the body of the newborn after the newborn sits on the seat.

[0014] Preferably, the tightening mechanism includes: A back support plate is vertically positioned at the top rear side of the circular hollow area; A head strap is adjustable and located at the upper end of the back support plate; An abdominal tightening strap is adjustable and located at the lower end of the back support plate.

[0015] Preferably, the top of the lifting platform is provided with a receiving slot plate, the movable support is disposed in the receiving slot plate, and the two sets of body position clamping mechanisms are movably disposed on the left and right sides of the top of the receiving slot plate.

[0016] Preferably, the movable support includes: A drive rod is rotatably connected to the right side of the receiving slot plate, and a first handwheel is provided at its front end; Two opposing threaded rods are provided, located on the front and rear sides of the receiving groove plate respectively, and the two sets of body position clamping mechanisms are respectively connected to the two ends of the two opposing threaded rods; The right ends of the two oppositely threaded rods are respectively connected to a first worm gear, and the first worm gear meshes with the first worm provided at both ends of the drive rod.

[0017] Preferably, the body positioning clamping mechanism includes: The lower clamping tile is connected to the oppositely threaded rods on the front and rear sides respectively via two L-shaped connecting rods; A middle clamping tile is slidably connected inside the lower clamping tile, and an upper clamping tile is slidably connected inside it. An arc-shaped groove is provided at the top center of the upper clamping tile, and a flip-up underarm plate is provided in the arc-shaped groove. The upper clamping tile and the middle clamping tile are connected to the lower clamping tile via a pulley assembly, which is connected to the top of the receiving groove plate.

[0018] Preferably, the pulley assembly includes: The mounting plate is vertically set in the middle of the outer side of the lower clamping tile, and a small wheel is set at its upper end. A first elastic rope is threaded through the small wheel. One end of the first elastic rope is connected to the top of the receiving groove plate, and the other end is connected to the first connecting block on the outer side of the lower end of the middle clamping tile. The large rotating wheel is rotatably connected to the outer side of the upper end of the middle clamping tile and is located above the small rotating wheel. A second elastic rope is threaded through it. One end of the second elastic rope is connected to the top of the receiving groove plate, and the other end is connected to the second connecting block at the lower end of the outer side of the upper clamping tile.

[0019] Preferably, a pair of inflatable tightening shoes are provided at the center of the top of the mobile platform, and the bottom of the inflatable tightening shoes is connected to an air pump, which is located at the bottom of the mobile platform.

[0020] Preferably, the lifting platform is provided with lifting legs at the four corners of its bottom, and the mobile platform is provided with lifting slots at the four corners of its top. The lifting legs are slidably connected in the lifting slots and are controlled by a handwheel mechanism.

[0021] Preferably, the handwheel mechanism includes: Two rotating rods are provided, which pass through the support legs on the front and rear sides of the mobile platform respectively, and a second handwheel is provided at the right end of each rod. A threaded rod is vertically installed inside the lifting leg and threadedly connected to a threaded sleeve vertically installed inside the support leg. The second worm gear is disposed at the upper end of the threaded sleeve and is connected to the second worm at the end of the rotating rod.

[0022] The beneficial effects of this invention are: 1. This invention's device adopts a "variable diameter movement on both sides + lifting adjustment" design. Medical staff no longer need to place the child in confined spaces; simply opening the rotating cover allows for easy positioning, reducing operation time by more than 50% compared to traditional devices. The mobile platform is equipped with casters and a locking device, allowing medical staff to move the device between wards and the radiology department by a single person, eliminating the need for multiple people to carry it and significantly reducing workload. Leg fixation uses inflatable tightening shoes, eliminating the need for cumbersome rubber band bindings; manual inflation is all that's required for fixation, making operation simple and providing stable fixation, improving ease of operation and reducing the workload of medical staff.

[0023] 2. The seat in this invention is made of medical-grade silicone, conforming to the physiological curve of the buttocks. The leg spandrels are wrapped in sponge, and the head and chest fixation device uses memory foam padding, comprehensively improving the child's comfort and avoiding local pressure and friction damage. The inflatable tightening shoes achieve leg fixation through flexible expansion, eliminating the feeling of elastic bands and effectively reducing the child's discomfort and crying rate, thereby shortening the shooting time and ensuring image quality. The lifting platform can be adjusted according to the child's leg length, preventing long-legged children from being forced to bend their legs, further improving the fit, ensuring the child's comfort and safety, and reducing crying interference.

[0024] 3. This invention's device, through its lifting and tightening mechanism, can adapt to newborns of different weights (1-5kg) and leg lengths, solving the compatibility problem of traditional devices with fixed hip basket positions. The transparent clamping tiles and inflatable tightening shoes are made of materials that do not affect X-ray penetration, ensuring image quality for abdominal standing radiographs and meeting clinical diagnostic needs. The silent design and protective railings of the mobile platform are suitable for hospital environments and ensure the safety of infants during transport, enhancing the device's practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a neonatal X-ray positioning and fixation device according to the present invention; Figure 2 This is a front view of a neonatal X-ray positioning and fixation device according to the present invention; Figure 3 This is a schematic diagram of the installation of the lifting platform in a neonatal radiography positioning and fixation device according to the present invention; Figure 4 This is a schematic diagram of the moving platform in a neonatal radiography positioning and fixation device according to the present invention; Figure 5 This is a schematic diagram of the installation of the body position clamping mechanism in a neonatal radiography positioning and fixation device according to the present invention; Figure 6 This is a schematic diagram of the bottom structure of the lifting platform in a neonatal radiography positioning and fixation device of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the receiving groove plate in a neonatal radiography positioning and fixation device of the present invention; Figure 8 This is a schematic diagram showing the connection relationship of the body position clamping mechanism in a neonatal radiography positioning auxiliary fixation device of the present invention; Figure 9 This is a schematic diagram of the body positioning clamping mechanism in a neonatal radiography positioning auxiliary fixation device of the present invention; Figure 10 This is a side view of the body positioning clamping mechanism in a neonatal radiography positioning auxiliary fixation device of the present invention; Figure 11 for Figure 10 Schematic diagram of the cross section at point AA; Figure 12 for Figure 11 A magnified view of a portion of point B in the middle; Figure 13 This is a schematic diagram of the installation of the upper clamping tile in a neonatal radiography positioning and fixation device of the present invention; Figure 14 This is a schematic diagram of the upper clamping tile in a neonatal X-ray positioning and fixation device of the present invention; Figure 15 This is a schematic diagram of the unfolded state of the axillary plate in a neonatal radiography positioning and fixation device of the present invention; Figure 16 This is a schematic diagram of the installation of the handwheel mechanism in a neonatal radiography positioning and fixation device according to the present invention; Figure 17 for Figure 16 A magnified view of a portion of point C in the middle; Figure 18 This is a schematic diagram of the abdominal collection belt in a neonatal radiography positioning and fixation device according to the present invention; Figure 19 This is a schematic diagram of the head tightening band in a neonatal X-ray positioning and fixation device according to the present invention; Figure 20 This is a schematic diagram of the extended state of the body position clamping mechanism in a neonatal X-ray positioning and fixation device of the present invention; Figure 21 This is a model diagram of a neonatal X-ray positioning and fixation device according to the present invention; Figure 22 This is a perspective view of a neonatal X-ray positioning and fixation device according to the present invention; Figure 23 This is a perspective view of the positioning clamping mechanism in a neonatal radiography positioning auxiliary fixation device of the present invention.

[0026] In the diagram: 1-Mobile platform; 11-Universal casters; 12-Support leg; 13-Lifting groove; 2-Lifting platform; 21-Circular hollow area; 22-Seat; 23-Lifting leg; 24-Crossbeam; 3-Accommodation slot plate; 31-Hollowed groove; 4-Body positioning clamping mechanism; 41-Lower clamping tile; 42-Middle clamping tile; 421-First connecting block; 43-Upper clamping tile; 431-Second connecting block; 432-Arched groove; 433-Storage slot; 44-L-shaped connecting rod; 45-Pulley assembly; 451-Mounting frame plate; 452-Large caster; 453-Small caster ; 454-Second elastic rope; 455-First elastic rope; 46-Underarm plate; 461-Deflection rod; 462-Telescopic arm plate; 5-Tightening mechanism; 51-Back support plate; 52-Head tightening strap; 53-Abdominal tightening strap; 54-Slot; 6-Inflatable tightening shoe; 61-Inflating pump; 7-Moving bracket; 71-First handwheel; 72-Drive rod; 73-Anti-directional threaded rod; 74-First worm gear; 75-First worm; 8-Handwheel mechanism; 81-Second handwheel; 82-Rotating rod; 83-Threaded rod; 831-Second worm gear; 84-Threaded sleeve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0028] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the invention.

[0029] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0031] like Figure 1-23As shown, this invention provides a neonatal X-ray positioning and fixation device, including a mobile platform 1. Support legs 12 are respectively installed at the four corners of the platform's bottom, and silent casters 11 are installed at the lower ends of the support legs 12. Brake locking devices are installed on the casters 11 to ensure that medical staff can push the device between the ward and the radiology department by a single person, eliminating the need for multiple people to carry it and significantly reducing workload. It is made of lightweight, high-strength aluminum alloy, ensuring the platform's load-bearing capacity (capable of supporting the weight of the newborn and the lifting platform, with a total load-bearing design of not less than 50kg) while significantly reducing the overall weight of the device, making it easy for medical staff to push. The platform surface is treated with an anti-slip coating to prevent the lifting platform from shifting during movement; at the same time, protective railings are provided along the platform edges to prevent the infant's supplies (such as diapers and clothing) from falling, improving ease of use. The lifting platform 2 is located at the top of the mobile platform 1. Lifting legs 23 are provided at the four corners of the bottom of the lifting platform 2. Lifting slots 13 are provided at the four corners of the top of the mobile platform 1. The lifting legs 23 are slidably connected in the lifting slots 13 and are controlled by the handwheel mechanism 8. The lifting legs 23 can be controlled to slide up and down in the lifting slots 13 by the handwheel mechanism 8 to adjust the height of the lifting platform 2.

[0032] A pair of inflatable compression shoes 6 are installed at the top center of the mobile platform 1. The bottom of the inflatable compression shoes 6 is connected to an air pump 61, which is located at the bottom of the mobile platform 1. The inflatable compression shoes 6 are made of transparent medical PVC material with an independent inflation channel and a manual air pump 61. The fixed position of the inflatable compression shoes 6 protects the controllability of the inflation volume and the shape design that conforms to the contour of the leg. After the child's foot is placed in the inflatable compression shoes 6, air can be injected into it through the air pump 61 to fix the patient's leg. After the lifting platform 2 is raised and lowered, the distance between the lifting platform 2 and the mobile platform 1 can be adjusted to accommodate the different leg lengths of the children, avoid the forced bending of the legs of children with long legs, further improve the body position adaptability, and reduce the interference of the child's crying.

[0033] In addition, a tightening mechanism 5 is included, located at the top rear of the lifting platform 2, to fix the child's body and head, and to facilitate the placement and removal of the child by medical staff. A positioning clamping mechanism 4 is provided in two sets, located on the left and right sides of the tightening mechanism 5 respectively, and is mounted on the top of the lifting platform 2 via a movable bracket 7. It is made of transparent material, which does not affect X-ray penetration and can fix the child's upper abdomen position.

[0034] The lifting platform 2 features a circular hollow area 21 at its top center. This area, with a diameter of 18cm calculated based on clinical data, is designed to fit the abdominal dimensions of a full-term infant, avoiding intestinal compression. This design meets the requirements for abdominal X-ray imaging in a standing position (ensuring clear X-ray penetration without affecting image quality) while providing sufficient space for the infant to move around, preventing abdominal compression. A seat 22, covered with 8mm thick medical-grade foam, is mounted behind the circular hollow area 21 via a crossbeam 24. This seat is designed to fit the leg size of a full-term infant, reducing discomfort. A tightening mechanism 5 is located behind the circular hollow area 21 to tighten the newborn's body when seated in the seat 22.

[0035] In the above embodiment, the seat 22 is made of soft, breathable medical-grade silicone material. The curvature of the seat 22 conforms to the physiological curve of the newborn's buttocks, effectively distributing pressure on the child's buttocks and preventing pressure sores caused by prolonged fixation. Simultaneously, the height of the seat 22 is precisely designed to ensure that the child's abdomen is relaxed when sitting on it, without affecting the intestinal morphology and ensuring the accuracy of imaging examinations. A crossbeam 24 is located under the seat 22, naturally separating the child's legs to the left and right sides, avoiding positional instability caused by keeping the legs together, and conforming to the natural physiological posture of a newborn's legs, reducing discomfort. The surface of the crossbeam is covered with medical-grade sponge to further enhance contact comfort and prevent skin friction damage.

[0036] In the above scheme, the tightening mechanism 5 includes a back support plate 51, which is vertically arranged on the top rear side of the circular hollow area 21; a head tightening strap 52, which is adjustablely arranged on the upper end of the back support plate 51; and an abdominal tightening strap 53, which is adjustablely arranged on the lower end of the back support plate 51.

[0037] In the above embodiment, the back support plate 51 has a rectangular frame structure and is vertically set at the top rear side of the circular hollow area 21. The head tightening strap 52 and the abdominal tightening strap 53 both adopt a U-shaped soft pad design. The soft pad is filled with medical memory foam, and the U-shaped memory foam soft pad is 3cm thick. The outside is wrapped with a breathable medical cloth cover, which conforms to the contour of the newborn's head and can effectively fix the head position and prevent the head from turning during the examination. There are Velcro on both sides, and the Velcro spacing is 11cm after adjustment. Medical staff can finely adjust the spacing according to the size of the child's head and chest cavity to achieve "personalized fixation", which not only ensures the fixation effect, but also avoids compression of the child's head and chest cavity and improves comfort.

[0038] Meanwhile, in order to accommodate different children, a slot 54 is provided in the middle of the back side of the head tightening strap 52 and the abdominal tightening strap 53. A pull-out fixing strap or tie is provided in the slot 54. The fixing position of the two can be adjusted by pulling the fixing strap or tie through the vertical gap of the back support plate 51, so that it can be adapted to the upper body fixation of different children.

[0039] In the above scheme, the top of the lifting platform 2 is provided with a receiving slot plate 3, the movable bracket 7 is set in the receiving slot plate 3 and installed on the mounting frame on the top of the lifting platform 2, and two sets of body position clamping mechanisms 4 are movably set on the left and right sides of the top of the receiving slot plate 3 and are set on both sides of the hollow slot 31 at the center of the receiving slot plate 3.

[0040] The movable support 7 includes a drive rod 72, which is rotatably connected to the right side of the receiving slot plate 3 and has a first handwheel 71 at its front end. There are two opposing threaded rods 73, which are located on the front and rear sides of the receiving slot plate 3 respectively. Two sets of body positioning clamping mechanisms 4 are respectively connected to the two ends of the two opposing threaded rods 73. The opposing threaded rods 73 can drive the two body positioning clamping mechanisms 4 to move closer or further apart, so as to facilitate the placement and removal of the child. The right ends of the two opposing threaded rods 73 are respectively connected to a first worm gear 74, which meshes with the first worm 75 at both ends of the drive rod 72.

[0041] In the above embodiment, the first handwheel 71 can be manually rotated to drive the drive rod 72 to rotate, and then the connection between the first worm 75 and the first worm wheel 74 on the drive rod 72 will drive the two opposite threaded rods 73 to rotate, which will cause the two body position clamping mechanisms 4 to move closer or further apart, so as to fix the position of the child.

[0042] In the above scheme, the body positioning clamping mechanism 4 includes a lower clamping tile 41, which is connected to the front and rear opposite threaded rods 73 by two L-shaped connecting rods 44 respectively. A middle clamping tile 42 is slidably connected in the lower clamping tile 41, and an upper clamping tile 43 is slidably connected in the middle clamping tile 41. An arc-shaped groove 432 is provided at the top center of the upper clamping tile 43. A flip-up underarm plate 46 is provided in the arc-shaped groove 432. The upper clamping tile 43 and the middle clamping tile 42 are connected in the lower clamping tile 41 by a pulley assembly 45. The pulley assembly 45 is connected to the top of the receiving groove plate 3.

[0043] A receiving groove 433 is vertically arranged on the outer side of the middle of the upper clamping tile 43. A deflecting rod 461 is arranged in the receiving groove 433. Its lower end is hinged to the bottom of the receiving groove 433, and its middle part is movably connected to the middle of the receiving groove 433. This allows the deflecting rod 461 to rotate in or out of the receiving groove 433 by a small amplitude. The lower end of the armpit plate 46 is hinged to the upper end of the deflecting rod 461, so that when the upper clamping tile 43 moves out of the middle clamping tile 42, it can flip outward under its own weight. At the same time, a telescopic arm plate 462 that can extend outward is arranged on the inner side of the top of the armpit plate 46. When the armpit plate 46 is unfolded under the influence of gravity, it can automatically extend to effectively support the newborn's arm. An elastic fixing strap is provided on the telescopic arm plate 462 to assist in fixing the arm.

[0044] The pulley assembly 45 includes a mounting plate 451, which is vertically arranged in the middle of the outer side of the lower clamping tile 41, and a small rotating wheel 453 is provided at its upper end. A first elastic rope 455 is threaded through the small rotating wheel 453. One end of the first elastic rope 455 is connected to the top of the receiving groove plate 3, and the other end is connected to the first connecting block 421 on the outer side of the lower end of the middle clamping tile 42. A large rotating wheel 452 is rotatably connected to the outer side of the upper end of the middle clamping tile 42 and is located above the small rotating wheel 453. A second elastic rope 454 is threaded through it. One end of the second elastic rope 454 is connected to the top of the receiving groove plate 3, and the other end is connected to the second connecting block 431 on the lower side of the outer side of the upper clamping tile 43.

[0045] In the above embodiment, the body positioning clamping mechanism 4 adopts a design of "medical-grade transparent polycarbonate material + semi-ohmic coverage (head to abdomen) + translation mechanism with crank handle for tightening / loosening", which solves the problems of "cumbersome upper body fixation operation and limited space" of traditional devices, especially protecting the variable diameter adjustment method of the clamp and the application scenarios of transparent material. By bringing the body positioning clamping mechanisms 4 closer together, the pulley assembly 45 can be used to make the middle clamping tile 42 and the upper clamping tile 43 rise within the lower clamping tile 41, so as to achieve effective restraint of the upper body of the child.

[0046] The bottom of the upper clamping tile 43 and the middle clamping tile 42 are respectively provided with limiting outer protrusions, and the top of the lower clamping tile 41 and the middle clamping tile 42 are respectively provided with limiting inner protrusions to prevent the body positioning clamping mechanism 4 from slipping out during the extension and retraction process. When the body positioning clamping mechanisms 4 approach each other, the middle clamping tile 42 is pulled up in sequence by the steering action of the small wheel 453 through the first elastic rope 455, and the upper clamping tile 43 is pulled up by the steering action of the large wheel 452 through the second elastic rope 454. This allows the body positioning clamping mechanism 4 to fix the child's body position, thereby shortening the time for fixing the child's body position, and allowing the arc-shaped groove 432 to rest against the child's armpit to avoid causing discomfort to the child. At the same time, it can also support the child's arms to facilitate the completion of X-ray examination. The positioning clamping mechanism 4 is made of medical-grade transparent polycarbonate, which is characterized by high strength, impact resistance, and good light transmittance (not affecting X-ray penetration). It is semi-ohmic in shape and covers the upper body of the child (from head to abdomen). The movable, telescopic, transparent, variable-diameter positioning clamping mechanism 4, together with the movable bracket 7, allows for tightening and loosening via the first handwheel.

[0047] In the above scheme, the handwheel mechanism 8 includes a rotating rod 82, which has two rods and passes through the support legs on the front and rear sides of the moving platform 1 respectively. A second handwheel 81 is provided at its right end. A threaded rod 83 is vertically arranged in the lifting leg 23 and threadedly connected to a threaded sleeve 84 vertically arranged in the support leg. A second worm gear 831 is arranged at the upper end of the threaded sleeve 84 and is connected to the second worm at the end of the rotating rod 82.

[0048] In the above embodiment, manually rotating the second handwheel 81 causes the connected rotating rod 82 to rotate. Since the rotating rod 82 is equipped with a second worm gear, and the second worm gear and the second worm wheel 831 are in a cooperative relationship, the rotation of the rotating rod 82 causes the second worm wheel 831 to also rotate. The second worm wheel 831 is mounted on the threaded sleeve 84, further driving the rotation of the threaded sleeve 84. The lower end of the threaded rod 83 and the threaded sleeve 84 are connected by threads. When the threaded sleeve 84 rotates, this threaded connection causes the threaded rod 83 to move vertically. The upper end of the threaded rod 83 is connected to the lifting legs 23 at the four corners of the bottom of the lifting platform 2, and the lifting legs 23 are located within the lifting grooves 13 at the four corners of the top of the moving platform 1. Therefore, as the threaded rod 83 moves up and down, the lifting legs 23 rise or fall within the lifting grooves 13, thereby effectively adjusting the height of the lifting platform 2.

[0049] Specific implementation examples: When using this neonatal X-ray positioning and fixation device, the following implementation methods are included: 1. Lower body fixation Medical staff place the newborn on the seat 22 within the circular hollow area 21, and spread the child's legs apart on both sides of the crossbeam 24, so that the child's feet are placed in the inflatable tightening shoe 6 at the top of the mobile platform 1, and the shoe is filled with air by the air pump 61 at the bottom to fix the child's feet. At the same time, the height of the platform 2 is raised and lowered by the handwheel mechanism 8 according to the length of the child's legs to improve the adaptability of the device.

[0050] 2. Upper body fixed Based on the specific position of the child's abdomen and head, adjust the position of the head tightening strap 52 and the abdomen tightening strap 53 on the back support plate 51, and after adjustment, fix the child's head and abdomen through the two to achieve effective fixation of the child's upper body.

[0051] 3. Fixed body position By rotating the first handwheel 71, the drive rod 72 is driven to rotate, and then the connection between the first worm 75 and the first worm wheel 74 on the drive rod 72 drives the two opposite threaded rods 73 to rotate, which in turn drives the two body position clamping mechanisms 4 to move closer to each other, so as to fix the position of the child.

[0052] During this process, the middle clamping tile 42 is pulled up sequentially by the first elastic rope 455 using the steering action of the small rotating wheel 453, and the upper clamping tile 43 is pulled up by the second elastic rope 454 using the steering action of the large rotating wheel 452. This raises the upper clamping tile 43 and the middle clamping tile 42, thus completely fixing the infant's position. The axillary plate 46, which is set in the arc-shaped groove 432 at the top, is placed under the newborn's armpit and unfolds outward under its own weight, causing the telescopic arm plate 462 inside to extend, thereby effectively supporting the newborn's arm. The fixation is further assisted by the fixation strap, effectively avoiding image artifacts caused by positional shift during the X-ray.

[0053] In summary, this neonatal X-ray positioning and immobilization device addresses the shortcomings of traditional devices through modular structural design and optimized user-friendly functions, effectively resolving clinical pain points such as cumbersome operation, poor comfort, difficult transport, and low adaptability. This device not only allows medical staff to independently perform neonatal positioning and X-ray procedures when family members cannot assist, ensuring the achievement of the diagnostic and treatment goals of "early diagnosis and early treatment," but also significantly improves the comfort and safety of the infant during the examination process, reduces crying interference, and improves examination efficiency and image quality. In the future, this device can be further optimized in detail based on clinical feedback (such as adding temperature control functions and integrating vital sign monitoring interfaces) to provide even better auxiliary support for the diagnosis and treatment of neonatal necrotizing enterocolitis.

[0054] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A neonatal X-ray positioning and fixation device, comprising a movable platform (1) and a lifting platform (2) disposed on the top of the movable platform (1), characterized in that, Also includes: A tightening mechanism (5) is provided on the rear side of the top of the lifting platform (2); The body positioning clamping mechanism (4) is provided in two sets, located on the left and right sides of the tightening mechanism (5) respectively, and installed on the top of the lifting platform (2) via a movable bracket (7).

2. The neonatal X-ray positioning and fixation device according to claim 1, characterized in that, The lifting platform (2) has a circular hollow area (21) at the top center, and a seat (22) is installed in the circular hollow area (21) through a crossbeam (24) on the back side. The tightening mechanism (5) is located on the rear side of the circular hollow area (21) so that the newborn can be tightened after sitting on the seat (22).

3. The neonatal X-ray positioning and fixation device according to claim 2, characterized in that, The tightening mechanism (5) includes: The back support plate (51) is vertically arranged on the rear side of the top of the circular hollow area (21); A head tightening strap (52) is adjustablely disposed at the upper end of the back support plate (51); An abdominal tightening band (53) is adjustablely located at the lower end of the back support plate (51).

4. The neonatal X-ray positioning and fixation device according to claim 1, characterized in that, The lifting platform (2) is provided with a receiving slot plate (3) at the top, the movable support (7) is provided in the receiving slot plate (3), and the two sets of body position clamping mechanisms (4) are movably provided on the left and right sides of the top of the receiving slot plate (3).

5. A neonatal X-ray positioning and fixation device according to claim 4, characterized in that, The movable support (7) includes: The drive rod (72) is rotatably connected to the right side of the receiving slot plate (3), and a first handwheel (71) is provided at its front end. Two opposite threaded rods (73) are provided and are located on the front and rear sides of the receiving groove plate (3) respectively. The two sets of body position clamping mechanisms (4) are respectively connected to the two ends of the opposite threaded rods (73). The right ends of the two opposite threaded rods (73) are respectively connected to a first worm gear (74), and the first worm gear (74) meshes with the first worm (75) provided at both ends of the drive rod (72).

6. The neonatal X-ray positioning and fixation device according to claim 5, characterized in that, The body positioning clamping mechanism (4) includes: The lower clamping tile (41) is connected to the opposite threaded rods (73) on the front and rear sides respectively by two L-shaped connecting rods (44); The middle clamping tile (42) is slidably connected inside the lower clamping tile (41), and the upper clamping tile (43) is slidably connected inside it. The upper clamping tile (43) has an arc-shaped groove (432) at the top center, and a flip-up underarm plate (46) is provided inside the arc-shaped groove (432). The upper clamping tile (43) and the middle clamping tile (42) are connected to the lower clamping tile (41) via a pulley assembly (45), which is connected to the top of the receiving groove plate (3).

7. A neonatal X-ray positioning and fixation device according to claim 6, characterized in that, The pulley assembly (45) includes: The mounting plate (451) is vertically arranged in the middle of the outer side of the lower clamping tile (41), and a small rotating wheel (453) is provided at its upper end. A first elastic rope (455) is threaded through the small rotating wheel (453). One end of the first elastic rope (455) is connected to the top of the receiving groove plate (3), and the other end is connected to the first connecting block (421) on the outer side of the lower end of the middle clamping tile (42). The large rotating wheel (452) is rotatably connected to the outer side of the upper end of the middle clamping tile (42) and located above the small rotating wheel (453). A second elastic rope (454) is threaded through it. One end of the second elastic rope (454) is connected to the top of the receiving groove plate (3), and the other end is connected to the second connecting block (431) at the lower end of the outer side of the upper clamping tile (43).

8. The neonatal X-ray positioning and fixation device according to claim 1, characterized in that, A pair of inflatable tightening shoes (6) are provided at the top center of the mobile platform (1). The bottom of the inflatable tightening shoes (6) is connected to an air pump (61), which is located at the bottom of the mobile platform (1).

9. A neonatal X-ray positioning and fixation device according to claim 1, characterized in that, The lifting platform (2) has lifting legs (23) at the four corners of its bottom, and the mobile platform (1) has lifting slots (13) at the four corners of its top. The lifting legs (23) are slidably connected in the lifting slots (13) and are controlled by a handwheel mechanism (8).

10. A neonatal X-ray positioning and fixation device according to claim 9, characterized in that, The handwheel mechanism (8) includes: Two rotating rods (82) are provided, which pass through the support legs on the front and rear sides of the mobile platform (1) respectively, and a second handwheel (81) is provided at its right end. A threaded rod (83) is vertically arranged inside the lifting leg (23) and threadedly connected to a threaded sleeve (84) vertically arranged inside the support leg; The second worm gear (831) is disposed on the upper end of the threaded sleeve (84) and is connected to the second worm at the end of the rotating rod (82).

Images