Anteflexion position guiding chair for diagnosis and treatment of vascular diseases
By installing multi-functional adjustment components and height-adjustable cushion components on the hospital bed, the shortcomings of existing hospital bed treatment positions are solved, providing stable and reliable support, ensuring safety and comfort during the diagnosis and treatment process, and adapting to the needs of different patients.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PEKING UNIV SCHOOL OF STOMATOLOGY
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
The existing treatment positions in hospital beds present problems such as insufficient patient support, inconvenience for doctors to operate, and low safety when diagnosing and treating vascular diseases. In particular, the standing and bending position can easily lead to puncture failure, occupational injury, and emergencies.
A forward bending posture guidance chair for the diagnosis and treatment of vascular diseases has been designed. By installing a multi-functional adjustment component on the movable base and equipping it with height-adjustable abdominal and chest padding components, it provides stable and reliable support, adapts to the needs of patients of different heights and body types, and ensures patient posture stability and operational safety.
It achieves stability in patient positioning and safety of operation, avoids the risk of puncture failure due to pain or instability, reduces occupational injury to doctors, and improves comfort and treatment effectiveness during the diagnosis and treatment process.
Smart Images
Figure CN224523543U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical chair technology, specifically relating to a forward bending posture guiding chair for the diagnosis and treatment of vascular diseases. Background Technology
[0002] Patients with facial and neck vascular malformations often experience insufficient filling of the affected vessels when standing or sitting due to gravity, making puncture procedures difficult and affecting treatment outcomes. In clinical practice, to promote blood return and achieve satisfactory filling of the affected vessels, facilitating puncture and improving the accuracy of intravascular injection, patients are usually required to adopt a standing, forward-flexed position. However, this position has several drawbacks: 1) The patient's center of gravity shifts forward, leaving their head and arms unsupported. During needle insertion, pain at the puncture site can trigger a reflexive avoidance of the head and neck, leading to puncture failure and potential damage to surrounding tissues, posing safety risks and reducing patient comfort. 2) The lesion site is lower than the doctor's normal sitting height, requiring the doctor to bend forward or squat, with their arms dangling. This affects operational stability and increases the risk of occupational injury due to prolonged poor posture. 3) Sudden fainting or anaphylactic shock may occur during sclerotherapy injection. The patient is prone to falls while standing without support, causing secondary injuries and hindering timely rescue. Therefore, the existing treatment positions on hospital beds have significant deficiencies, necessitating a stable support device that guides patients to maintain a forward-flexed posture while seated to address these issues and ensure the safety and effectiveness of treatment. Utility Model Content
[0003] The technical problem solved by this utility model is to provide a forward bending posture guidance chair for the diagnosis and treatment of vascular diseases. By installing a multi-functional adjustment component with adjustable height on a movable base, and installing an abdominal soft pad component and a chest soft pad component with height adjustment function at the fixed end and horizontal adjustment end of the multi-functional adjustment component, respectively, it provides stable, reliable, safe and comfortable diagnosis and treatment conditions for patients of different heights and body types. It solves the problems of insufficient patient support, inconvenience for doctors to operate, and low safety in the existing standing forward bending posture. The stable support avoids the risk of puncture failure caused by head and neck avoidance due to pain or instability. It avoids doctors bending over, squatting or suspending their arms to operate, reducing occupational injuries caused by long-term operation. It ensures that the support is both stable and conforms to the patient's body curve, improves the patient's comfort during the diagnosis and treatment process, and achieves the effects of stable patient posture, safe and efficient operation, and strong adaptability, ensuring the safety and effectiveness of treatment.
[0004] The technical solution adopted in this utility model is a forward bending posture guiding chair for the diagnosis and treatment of vascular diseases, including a movable base for support, a multi-functional adjustment component, an abdominal cushion component, and a chest cushion component. The multi-functional adjustment component is height-adjustable and mounted on the movable base. An abdominal cushion component for flexible support of the patient's abdomen is installed on a fixed end of one side of the multi-functional adjustment component, and a chest cushion component for flexible support of the patient's chest is installed on a horizontally adjustable end of the other side of the multi-functional adjustment component. The distance between the chest cushion component and the abdominal cushion component is adjusted by adjusting the fixed position of the horizontally adjustable end of the other side of the multi-functional adjustment component. The parts of the abdominal cushion component and the chest cushion component that contact the patient are both height-adjustable flexible support structures.
[0005] The movable base includes a support frame with four corner ferrules mounted on the bottom. A cover plate with the same outer contour as the support frame is fixed to the upper surface of the support frame. The lower end of the gas spring is fixedly connected to a fixed seat that is fixed to the support frame and extends out of the cover plate. A foot pedal for providing foot support for the patient is installed on the gas spring housing in an adjustable manner. The telescopic end of the upper end of the gas spring is fixedly connected to the bottom of the multi-functional adjustment component. The gas spring telescopic end drives the multi-functional adjustment component to adjust the height by pressing the gas spring adjustment button at the upper end of the gas spring through the adjustment rod provided in the multi-functional adjustment component.
[0006] Furthermore, a foot support frame is fitted onto the gas spring housing, consisting of a hollow tube in the middle and foot support rods evenly distributed on the outer wall of the hollow tube. The foot pedal fitted onto the gas spring housing is fixed to the foot support frame. A locking handwheel with its inner end pressed against the gas spring housing is threaded onto the hollow tube of the foot support frame. The height of the foot pedal can be adjusted by tightening or loosening the locking handwheel.
[0007] Furthermore, the multi-functional adjustment component includes a Z-shaped sliding tongue, a gas spring mounting base located below the sliding tongue guide section, a mounting block located above the sliding tongue guide section, and a locking block adapted to the upper end of the inverted T-shaped guide groove on the bottom surface of the mounting block. The lower end of the gas spring mounting base has a tapered sleeve that is adapted to and connected to the gas spring telescopic end on the movable base. The upper end surface of the gas spring mounting base has a T-shaped groove that extends through the inner hole and the outer wall. The adjusting rod, whose inner end is adapted to the small-sized portion at the lower end of the T-shaped groove, is located above the gas spring adjusting button at the gas spring telescopic end. The large-sized portion at the upper end of the T-shaped groove is fitted with a pivot pin that positions the gas spring adjusting button, and the button can be positioned by lifting or... Loosen the adjusting rod to press or release the gas spring adjusting button; the two symmetrically fixed set screws on the locking block are located in the guide hole of the sliding tongue guide section, and the sliding tongue guide section is adapted to the lower end of the guide groove on the bottom surface of the mounting block. A connecting plate is provided above the mounting block, and one end of the connecting plate is fixedly connected to the mounting block and the gas spring mounting base. By moving the sliding tongue horizontally along the length of the guide groove on the bottom surface of the mounting block, the distance between the chest padding assembly and the abdominal padding assembly fixed to the sliding tongue connecting section can be adjusted. The position of the sliding tongue is locked and fixed by the handwheel bolt that passes through the through hole on the connecting plate, is threaded to the mounting block, and abuts against the locking block.
[0008] Furthermore, handles for providing a point of force application for the patient are symmetrically fixed on the front and rear side walls of the mounting block.
[0009] Furthermore, the chest padding assembly and the abdominal padding assembly have the same height-adjustable flexible support structure.
[0010] Furthermore, the chest pad assembly includes a support shell and a chest pad that directly contacts the patient's chest. A chest pad board for shaping and providing auxiliary support is fixed to the bottom of the chest pad, and the chest pad board and its bottom chest pad connecting plate are fixed together by multiple screws. The upper end of the support shell is fixedly connected to the chest pad board and the chest pad connecting plate in the center by multiple Phillips head screws. The height of the support shell is adjustable and fixed to the vertical section of the L-shaped support plate, and the horizontal section at the lower end of the L-shaped support plate is fixedly connected to the sliding tongue connecting section in the multi-functional adjustment assembly.
[0011] Furthermore, the vertical section of the L-shaped support plate has a vertically arranged limiting groove, and the vertical section of the L-shaped support plate is inserted into a hollow support shell with openings at the top and bottom. A button protruding outward is installed at the through hole position on one side wall of the support shell, and a positioning pin, which is elastically installed in the mounting cavity protruding outward on the inner wall of the other side of the support shell, passes through the limiting groove and is adapted to be connected to the center hole of the button. When the positioning section of the positioning pin moves out of the large-diameter section of the limiting groove by pressing the button inward, the support shell can be moved up or down to adjust the height of the chest pad.
[0012] Furthermore, the positioning pin is a stepped structure with a central diameter greater than the diameters at both ends. A spring sleeve is installed in the mounting cavity protruding outward on the inner wall of the other side of the support shell and positioned at one end of the positioning pin. The large-diameter section of the positioning pin is transitionally connected to the positioning section that is adapted to the large-diameter section of the limiting slide groove through a tapered section. The portion of the other end of the positioning pin with a diameter smaller than that of the positioning section passes through the through hole on the corresponding side of the support shell and is adapted to the center hole of the button. When the button is pressed and the positioning section of the positioning pin moves out of the large-diameter section of the limiting slide groove, the small-diameter section at the other end of the positioning pin is located in the limiting slide groove and can move up and down along the height direction of the limiting slide groove.
[0013] Advantages of this utility model compared to the prior art: 1. This technical solution provides stable, reliable, safe and comfortable treatment conditions for patients of different heights and body types by installing a multi-functional adjustment component on a mobile base with adjustable height, and installing an abdominal soft pad component and a chest soft pad component with height adjustment function on the fixed end and the horizontal adjustment end of the multi-functional adjustment component, respectively. This solves the problems of insufficient patient support, inconvenience for doctors to operate and low safety in the existing standing forward bending posture. 2. This technical solution is equipped with a gas spring-loaded mobile base, which provides basic support and mobility for the entire device, and provides height adjustment for the multi-functional adjustment components, thereby meeting the positional needs of patients of different heights and the height habits of doctors during operation; 3. The multi-functional adjustment component of this technical solution, which connects to the movable base at the lower end and to the abdominal and chest padding components at the upper end, enables the abdominal and chest padding components to have multi-directional adjustment functions. It can adjust the relative height, horizontal front-back and left-right position of the abdominal and chest padding components, providing support for the body parts. The abdominal and chest padding components are in direct contact with the patient's body, providing support while ensuring comfort and fit, avoiding the pressure caused by rigid support. 4. This technical solution has a simple structure, novel design, convenient operation, and safe and reliable support. The stable support avoids the risk of puncture failure caused by head and neck avoidance due to pain or instability. It also avoids doctors having to bend over, squat, or have their arms suspended in the air during operation, reducing occupational injuries caused by long-term operation. It ensures that the support is both stable and conforms to the patient's body curve, improving the patient's comfort during the diagnosis and treatment process. It achieves the effects of stable patient position, safe and efficient operation, and strong adaptability, ensuring the safety and effectiveness of treatment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the mobile base of this utility model; Figure 3 This is an exploded view of the multifunctional adjustment component of this utility model; Figure 4 This is a schematic diagram of the connection between the gas spring and the adjusting rod of this utility model; Figure 5 This is a side sectional view of the chest padding assembly of this utility model; Figure 6 This is a front sectional view of the chest padding component of this utility model; Figure 7 This is a three-dimensional structural diagram of the L-shaped support plate of this utility model; Figure 8 This is a partial schematic diagram showing the connection position between the button and the elastically mounted positioning pin of the chest padding component of this utility model. Detailed Implementation
[0015] The following will be based on the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0017] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0018] Forward bending posture guidance chair for the diagnosis and treatment of vascular diseases, such as Figure 1 As shown, the device includes a movable base 1 that provides support, a multi-functional adjustment component 2, an abdominal padding component 3, and a chest padding component 4. The multi-functional adjustment component 2 is height-adjustable and mounted on the movable base 1. An abdominal padding component 3 for providing flexible support to the patient's abdomen is mounted on one fixed end of the multi-functional adjustment component 2, and a chest padding component 4 for providing flexible support to the patient's chest is mounted on the other horizontally adjustable end of the multi-functional adjustment component 2. The distance between the chest padding component 4 and the abdominal padding component 3 is adjusted by adjusting the fixed position of the other horizontally adjustable end of the multi-functional adjustment component 2. The parts of the abdominal padding component 3 and the chest padding component 4 that contact the patient are both height-adjustable flexible support structures.
[0019] like Figure 2 As shown, the specific structure of the mobile base 1 is as follows: The mobile base 1 includes a support frame 1-2 with casters 1-1 mounted at the four corners of the bottom. The casters 1-1 are locking casters, which have both moving and fixing functions, allowing the equipment to be flexibly moved to the required treatment position and then stably fixed in place, meeting the needs of equipment position adjustment in treatment scenarios and solving the problem of traditional fixed equipment being difficult to move; the upper surface of the support frame 1-2 is fixed with a cover plate 1-4 that has the same outer contour as the support frame 1-2 by multiple hexagon countersunk screws 1-5, and The lower end of the gas spring 1-9 is fixedly connected to the fixed seat 1-3, which is fixed on the support frame 1-2 and extends out of the cover plate 1-4. The gas spring 1-9 has a height-adjustable foot pedal 1-7 for providing foot support for the patient. The telescopic end of the upper end of the gas spring 1-9 is fixedly connected to the bottom of the multi-functional adjustment component 2. The gas spring 1-9 telescopic end drives the multi-functional adjustment component 2 to adjust its height by pressing the gas spring adjustment button 1-9-1 at the upper end of the gas spring 1-9 through the adjustment rod 2-2 in the multi-functional adjustment component 2.
[0020] The height-adjustable mounting structure of the foot pedal 1-7 on the gas spring 1-9 housing is as follows: A foot support frame 1-10, consisting of a hollow tube in the middle and foot support rods evenly distributed on the outer wall of the hollow tube, is mounted on the gas spring 1-9 housing. The foot pedal 1-7, mounted on the gas spring 1-9 housing, is fixed to the foot support frame 1-10 by multiple hexagon countersunk screws 1-8. A locking handwheel 1-6, with its inner end pressed against the gas spring 1-9 housing, is threaded onto the hollow tube of the foot support frame 1-10. The height of the foot pedal 1-7 can be adjusted by tightening or loosening the locking handwheel 1-6.
[0021] In the above structure, the upper telescopic end of the gas spring 1-9 is connected to the multi-functional adjustment component 2. By pressing the gas spring adjustment button 1-9-1 with the adjustment rod 2-2 in the multi-functional adjustment component 2, the height of the telescopic end of the gas spring can be easily adjusted, thereby driving the height adjustment of the entire multi-functional adjustment component 2, the chest pad assembly 4, and the abdominal pad assembly 3. This design can match the positional needs of patients of different heights, while also adapting to the height habits of doctors during operation, avoiding doctors from bending over or squatting, and reducing the risk of occupational injury; the foot pedal 1-7 is mounted on the outer shell of the gas spring 1-9 through the foot support bracket 1-10, utilizing... Tightening or loosening the locking handwheel 1-6 adjusts the height of the foot pedal, allowing patients of different leg lengths to find a comfortable foot support position, preventing instability caused by unsupported feet, further stabilizing the patient's forward flexion position, and improving safety during treatment. The lower end of the gas spring 1-9 is connected to the fixed base 1-3, and the foot support frame 1-10 is mounted on the outer shell of the gas spring 1-9. The foot pedal 1-7 is fixed on the support frame 1-10. The components are arranged in a reasonable manner to form a whole, ensuring the adjustment function while reducing space occupation, making the equipment structure more compact and easy to use in the treatment environment.
[0022] like Figure 3-4As shown, the specific structure of the multi-functional adjustment component 2 is as follows: The multi-functional adjustment component 2 includes a Z-shaped sliding tongue 2-3, a gas spring mounting base 2-1 located below the guide section of the sliding tongue 2-3, a mounting block 2-5 located above the guide section of the sliding tongue 2-3, and a locking block 2-9 adapted to the upper end of the inverted T-shaped guide groove on the bottom surface of the mounting block 2-5. The lower end of the gas spring mounting base 2-1 has a tapered sleeve that is adapted to and connected to the telescopic end of the gas spring 1-9 on the movable base 1. The upper end surface of the gas spring mounting base 2-1 has a T-shaped groove 2-2 that extends through the inner hole and the outer wall. 2. The adjusting rod 2-2, whose inner end is adapted to the small-sized portion at the lower end of the T-slot 2-2-2, is located above the gas spring adjusting button 1-9-1 at the telescopic end of the gas spring 1-9. The large-sized portion at the upper end of the T-slot 2-2-2 is fitted with a pivot pin 2-2-1 for positioning the gas spring adjusting button 1-9-1. By lifting or releasing the adjusting rod 2-2, the head of the adjusting rod 2-2 can press or release the gas spring adjusting button 1-9-1. The width of the inner end of the adjusting rod 2-2 located above the gas spring adjusting button 1-9-1 at the telescopic end of the gas spring 1-9 is greater than... The narrower section at the lower end of the T-slot 2-2-2 ensures that, under the positioning of the pivot pin 2-2-1, based on the lever principle, the end of the adjusting rod 2-2 can only be adjusted up and down, and cannot disengage from the T-slot 2-2-2. Two symmetrically fixed set screws 2-10 on the locking block 2-9 are located within the guide holes of the sliding tongue 2-3 guide section, and the sliding tongue 2-3 guide section is adapted to the lower end of the guide groove on the bottom surface of the mounting block 2-5. A connecting plate 2-8 is provided above the mounting block 2-5, and one end of the connecting plate 2-8 is connected to the mounting block 2-5 via multiple countersunk head hexagonal screws 2-6. The mounting block 2-5 and the gas spring mounting base 2-1 are fixedly connected as one unit. The distance between the chest pad assembly 4 and the abdominal pad assembly 3, which are fixed to the connecting section of the sliding tongue 2-3, can be adjusted by moving the sliding tongue 2-3 horizontally along the length of the guide groove on the bottom surface of the mounting block 2-5. The position of the sliding tongue 2-3 is locked and fixed by the handwheel bolt 2-7 that passes through the through hole on the connecting plate 2-8 and is threaded to the mounting block 2-5 and abuts against the locking block 2-9. Specifically, handles 2-4 are symmetrically fixed on the front and rear side walls of the mounting block 2-5 to provide a force application point for the patient.
[0023] In the above structure, the multi-functional adjustment component 2 can control the overall height adjustment by pressing the gas spring adjustment button 1-9-1 through the adjustment rod 2-2. Simultaneously, with the handwheel bolt 2-7 loosened, the sliding tongue 2-3 moves horizontally along the length of the guide groove of the mounting block 2-5, adjusting the distance between the chest padding component 4 and the abdominal padding component 3. This dual adjustment function can adapt to the needs of patients of different heights and body types, ensuring accurate chest and abdominal support positions and solving the problem that a single adjustment method cannot meet individual differences. Height adjustment can be achieved by raising or loosening the adjustment rod 2-2, while distance adjustment is achieved by moving the sliding tongue 2-3 and locking it with the handwheel bolt 2-7, making operation simple and efficient. Furthermore, the cooperation between the set screw 2-10 at the bottom of the locking block 2-9 and the guide hole in the guide section of the sliding tongue 2-3, as well as the locking of the sliding tongue 2-3 by the handwheel bolt 2-7, ensures the stability of the positions of each component before and after adjustment, preventing changes in patient position due to displacement of support components during treatment and reducing the risk of puncture failure or accidents. The overall layout is compact, and all components work together to ensure both flexibility of adjustment and enhanced overall structural strength of the equipment, providing a stable support base for patients. By adjusting the height and spacing of the chest and abdominal supports, patients can be guided to maintain a stable forward flexion position, avoiding the instability of the center of gravity when standing forward flexion. At the same time, the stable position facilitates operation by doctors, reduces the difficulty of operation caused by patient swaying, indirectly reduces the risk of occupational injury to doctors, and improves the efficiency of diagnosis and treatment.
[0024] The chest padding assembly 4 and the abdominal padding assembly 3 have the same height-adjustable flexible support structure.
[0025] like Figure 5-8 As shown, the specific structure of the chest padding assembly 4 is as follows: The chest padding assembly 4 includes a support shell 4-5 and a chest padding 4-1 that directly contacts the patient's chest. The bottom of the chest padding 4-1 is fixed with a chest padding board 4-2 for shaping and auxiliary support. The chest padding board 4-2 and its bottom chest padding connecting plate 4-3 are fixed together by multiple screws 4-4. The upper end of the support shell 4-5 is fixedly connected to the chest padding board 4-2 and the chest padding connecting plate 4-3 in the center by multiple cross-head screws 4-10. The height of the support shell 4-5 is adjustable and fixed to the vertical section of the L-shaped support plate 4-9. The horizontal section of the lower end of the L-shaped support plate 4-9 is fixedly connected to the sliding tongue 2-3 connecting section in the multi-functional adjustment assembly 2.
[0026] In the above structure, the chest pad 4-1 directly contacts the patient's chest, and the bottom chest pad wooden board 4-2 provides shaping and auxiliary support, ensuring the stability of the support. The connection structure between the chest pad 4-1, the chest pad wooden board 4-2, and the chest pad connecting plate 4-3 ensures that the chest support is not easily deformed when the patient is in a forward flexion position, avoiding the patient's positional swaying due to unstable support, and reducing the risk of puncture failure or tissue damage. At the same time, the flexible chest pad 4-1 can conform to the patient's chest curve, avoiding pressure or discomfort caused by rigid support. Furthermore, the shaping design ensures that the support conforms to the chest shape, improving the patient's comfort during long-term treatment. The support shell 4-5 and L... The height-adjustable connection of the L-shaped support plate 4-9 provides a structural basis for adjusting the height of the chest pad 4-1, which can adapt to the chest position needs of patients of different heights and body types and ensure accurate support position. The lower horizontal section of the L-shaped support plate 4-9 is connected to the sliding tongue 2-3 of the multi-functional adjustment component 2, so that the chest pad component 4 is stably connected to the main structure of the equipment. At the same time, in conjunction with the horizontal adjustment function of the sliding tongue 2-3, the spacing between the chest and abdominal pads can be flexibly adjusted. The adjustable vertical section installation structure of the support shell 4-5 and the L-shaped support plate 4-9 is as follows: The vertical section of the L-shaped support plate 4-9 has a vertically set limiting groove 4-9-1, and the vertical section of the L-shaped support plate 4-9 is inserted into the hollow support shell 4-5 with openings at the top and bottom. A button 4-6 protruding outward is installed at the through hole position on one side wall of the support shell 4-5, and a positioning pin 4-7, elastically installed in the mounting cavity protruding outward on the other side inner wall of the support shell 4-5, passes through the limiting groove 4-9-1 and is adapted to be connected to the center hole of the button 4-6. When the positioning section of the positioning pin 4-7 moves out of the large diameter section of the limiting groove 4-9-1 by pressing the button 4-6 inward, the support shell 4-5 can be moved up or down to adjust the height of the chest pad 4-1.
[0027] In the above structure, the cooperation of the limiting slide 4-9-1, the positioning pin 4-7, and the button 4-6 provides a specific operating structure for adjusting the height of the chest pad 4-1, allowing the support shell 4-5 to move stably along the vertical section of the L-shaped support plate 4-9. Simply pressing the button 4-6 unlocks the support shell 4-5 and moves it up and down; releasing the button 4-6 after adjustment automatically locks it in place. No complicated tools or operating procedures are required, facilitating quick adjustments by medical staff based on the patient's body shape and improving the efficiency of treatment preparation. The positioning section of the positioning pin 4-7 is adapted to the large-diameter section of the limiting slide 4-9-1. When the button is not pressed, the elasticity of the spring 4-8 keeps the positioning pin 4-9-1 in place. -7 remains locked to prevent the chest pad 4-1 from shifting due to external force when the patient leans against it, ensuring stable support. The large-diameter section of the limiting groove 4-9-1 can be used as a positioning stop. Together with the stepped structure of the positioning pin 4-7, it ensures that the height of the chest pad 4-1 is reliably fixed after adjustment, preventing height deviation due to vibration or slight patient movement, and ensuring stable body position during puncture. Through the fixed connection between the L-shaped support plate 4-9 and the sliding tongue 2-3, the height adjustment function is integrated into the entire device's adjustment system, allowing the height adjustment of the chest pad 4-1 to work in conjunction with the chest-abdomen distance adjustment and the overall device height adjustment, forming a complete adaptation system. The specific structure of the positioning pin 4-7 is as follows: The positioning pin 4-7 is a stepped structure with a diameter in the middle larger than that at both ends. A spring 4-8 is installed in the mounting cavity protruding outward on the inner wall of the other side of the support shell 4-5 and is positioned at one end of the positioning pin 4-7. The end of the spring 4-8 facing the positioning pin 4-7 abuts against the stepped surface of the large diameter section of the positioning pin 4-7 for positioning. The large diameter section of the positioning pin 4-7 is transitionally connected to the positioning section that is adapted to the large diameter section of the limiting slide groove 4-9-1 through a tapered section. The part of the other end of the positioning pin 4-7 with a diameter smaller than that of the positioning section passes through the through hole on the corresponding side of the support shell 4-5 and is adapted to the center hole of the button 4-6. When the button 4-6 is pressed and the positioning section of the positioning pin 4-7 moves out of the large diameter section of the limiting slide groove 4-9-1, the small diameter section of the other end of the positioning pin 4-7 is located in the limiting slide groove 4-9-1 and can move up and down along the height direction of the limiting slide groove 4-9-1.
[0028] In the above structure, the stepped structure and tapered transition design of the positioning pin 4-7 allow the positioning section to accurately engage with the large-diameter section of the limiting slide groove 4-9-1 under the elastic force of the spring 4-8, achieving stable positioning. The small-diameter section at the other end of the positioning pin 4-7 remains within the limiting slide groove 4-9-1 in the unlocked state, and can move along the height direction of the limiting slide groove 4-9-1, serving as a guide to prevent the support shell 4-5 from shifting or shaking during vertical adjustment, ensuring the accuracy of the height adjustment of the chest pad 4-1. The matching set of the spring 4-8 and the positioning pin 4-7 provides continuous and stable elastic force, ensuring that the positioning pin 4-7 always tends to return to the direction of the button 4-6, guaranteeing that the positioning section is reliably locked in the large-diameter section when the button 4-6 is not pressed. During adjustment, after adjusting to the appropriate height, the button 4-6 is released, the spring 4-8 returns to its original position, and the positioning pin 4-7 engages with the limiting slide groove 4-9-1, locking the height.
[0029] This technical solution features a simple structure, novel design, convenient operation, and reliable support. It enables adjustment of the relative height and length of the chest and abdominal support positions, and allows for synchronized overall raising and lowering of these positions. Simultaneously, it adjusts the height of the footrest from the ground, thus adapting to the treatment needs of patients of different body types, heights, and ages. This improves comfort, alleviates muscle fatigue during prolonged treatment, optimizes the comfort experience during treatment, and achieves stable patient positioning, safe and efficient operation, and strong adaptability, ensuring the safety and effectiveness of treatment.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A forward bending posture guiding chair for the diagnosis and treatment of vascular diseases, characterized in that: The device includes a movable base (1) that provides support, a multi-functional adjustment component (2), an abdominal padding component (3), and a chest padding component (4). The multi-functional adjustment component (2) is height-adjustable and mounted on the movable base (1). The abdominal padding component (3) for providing flexible support to the patient's abdomen is mounted on one fixed end of the multi-functional adjustment component (2), and the chest padding component (4) for providing flexible support to the patient's chest is mounted on the other horizontal adjustment end of the multi-functional adjustment component (2). The distance between the chest padding component (4) and the abdominal padding component (3) is adjusted by adjusting the fixed position of the other horizontal adjustment end of the multi-functional adjustment component (2). The abdominal padding component (3) and the chest padding component (4) are both height-adjustable flexible support structures that come into contact with the patient.
2. The forward bending posture guiding chair for the diagnosis and treatment of vascular diseases according to claim 1, characterized in that: The mobile base (1) includes a support frame (1-2) with four corners of the bottom equipped with casters (1-1). The upper surface of the support frame (1-2) is fixed with a cover plate (1-4) that has the same outer contour as the support frame (1-2). The lower end of the gas spring (1-9) is fixedly connected to a fixed seat (1-3) that is fixed on the support frame (1-2) and extends out of the cover plate (1-4). The gas spring (1-9) is equipped with a foot pedal (1-7) that provides foot support for the patient. The telescopic end of the upper end of the gas spring (1-9) is fixedly connected to the bottom of the multi-functional adjustment component (2). The gas spring (1-9) is adjusted by pressing the gas spring adjustment button (1-9-1) at the upper end of the gas spring (1-9) through the adjustment rod (2-2) in the multi-functional adjustment component (2). The telescopic end of the gas spring (1-9) drives the multi-functional adjustment component (2) to adjust the height.
3. The forward bending posture guiding chair for the diagnosis and treatment of vascular diseases according to claim 2, characterized in that: The gas spring (1-9) housing is fitted with a foot support frame (1-10) consisting of a hollow tube in the middle and foot support rods evenly distributed on the outer wall of the hollow tube. The foot pedal (1-7) fitted on the gas spring (1-9) housing is fixed on the foot support frame (1-10). The hollow tube of the foot support frame (1-10) is threaded with a locking handwheel (1-6) whose inner end abuts against the gas spring (1-9) housing. The height position of the foot pedal (1-7) can be adjusted by tightening or loosening the locking handwheel (1-6).
4. The forward bending posture guiding chair for the diagnosis and treatment of vascular diseases according to claim 1, characterized in that: The multi-functional adjustment component (2) includes a Z-shaped sliding tongue (2-3), a gas spring mounting base (2-1) located below the guide section of the sliding tongue (2-3), a mounting block (2-5) located above the guide section of the sliding tongue (2-3), and a locking block (2-9) adapted to the upper end of the inverted T-shaped guide groove on the bottom surface of the mounting block (2-5). The lower end of the gas spring mounting base (2-1) is fitted and connected to the telescopic end of the gas spring (1-9) on the movable base (1). The upper surface of the spring mounting base (2-1) has a T-slot (2-2-2) that extends through the inner hole and the outer wall. The adjusting rod (2-2), whose inner end is adapted to the small-sized part of the lower end of the T-slot (2-2-2), is located above the gas spring adjusting button (1-9-1) at the telescopic end of the gas spring (1-9). The large-sized part of the upper end of the T-slot (2-2-2) is fitted with a pivot pin (2-2-1) that positions the gas spring adjusting button (1-9-1). The adjusting rod can be raised or lowered to adjust the position. (2-2) The head of the adjusting rod (2-2) presses or releases the gas spring adjusting button (1-9-1); the two set screws (2-10) symmetrically fixed on the locking block (2-9) are located in the guide elongated hole of the guide section of the sliding tongue (2-3), and the guide section of the sliding tongue (2-3) is adapted to the lower end of the guide groove on the bottom surface of the mounting block (2-5). A connecting plate (2-8) is provided above the mounting block (2-5), and one end of the connecting plate (2-8) is connected to the mounting block (2-5) and the gas spring. The spring mounting base (2-1) is fixed together as a whole, and the distance between the chest pad assembly (4) and the abdominal pad assembly (3) fixed to the connecting section of the sliding tongue (2-3) is adjusted by moving the sliding tongue (2-3) horizontally along the length of the guide groove on the bottom surface of the mounting block (2-5). The position of the sliding tongue (2-3) is locked and fixed by the handwheel bolt (2-7) that passes through the through hole on the connecting plate (2-8), is threaded to the mounting block (2-5), and abuts against the locking block (2-9).
5. The forward bending posture guiding chair for the diagnosis and treatment of vascular diseases according to claim 4, characterized in that: The mounting block (2-5) has handles (2-4) symmetrically fixed on its front and rear side walls to provide a point of force application for the patient.
6. The forward bending posture guiding chair for the diagnosis and treatment of vascular diseases according to claim 1, characterized in that: The chest padding assembly (4) and the abdominal padding assembly (3) have the same height-adjustable flexible support structure.
7. The forward bending posture guiding chair for the diagnosis and treatment of vascular diseases according to claim 1, characterized in that: The chest pad assembly (4) includes a support shell (4-5) and a chest pad (4-1) that comes into direct contact with the patient's chest. The bottom of the chest pad (4-1) is fixed with a chest pad board (4-2) for shaping and auxiliary support. The chest pad board (4-2) and its bottom chest pad connecting plate (4-3) are fixed together by multiple screws (4-4). The upper end of the support shell (4-5) is fixedly connected to the chest pad board (4-2) and the chest pad connecting plate (4-3) in the center by multiple cross head screws (4-10). The height of the support shell (4-5) is adjustable and fixed to the vertical section of the L-shaped support plate (4-9). The horizontal section of the lower end of the L-shaped support plate (4-9) is fixedly connected to the sliding tongue (2-3) connecting section in the multi-functional adjustment assembly (2).
8. The forward bending posture guiding chair for the diagnosis and treatment of vascular diseases according to claim 7, characterized in that: The vertical section of the L-shaped support plate (4-9) has a vertically set limiting groove (4-9-1) on its surface. The vertical section of the L-shaped support plate (4-9) is inserted into a hollow support shell (4-5) with openings at the top and bottom. A button (4-6) is installed at the through hole position on one side wall of the support shell (4-5). A positioning pin (4-7) is elastically installed in the mounting cavity protruding outward on the other side inner wall of the support shell (4-5). The positioning pin (4-7) passes through the limiting groove (4-9-1) and is adapted to be connected to the center hole of the button (4-6). When the positioning section of the positioning pin (4-7) is moved out of the large diameter section of the limiting groove (4-9-1) by pressing the button (4-6) inward, the support shell (4-5) can be moved up or down to adjust the height of the chest pad (4-1).
9. The forward bending posture guiding chair for the diagnosis and treatment of vascular diseases according to claim 8, characterized in that: The positioning pin (4-7) is a stepped structure with a diameter in the middle larger than that at both ends. A spring (4-8) is installed in the mounting cavity protruding outward on the inner wall of the other side of the support shell (4-5) and is positioned at one end of the positioning pin (4-7). The large diameter section of the positioning pin (4-7) is connected to the positioning section that is adapted to the large diameter section of the limiting slide groove (4-9-1) through a tapered section. The other end of the positioning pin (4-7) has a diameter smaller than that of the positioning section. It passes through the through hole on the corresponding side of the support shell (4-5) and is adapted to the center hole of the button (4-6). When the button (4-6) is pressed and the positioning section of the positioning pin (4-7) moves out of the large diameter section of the limiting slide groove (4-9-1), the small diameter section of the other end of the positioning pin (4-7) is located in the limiting slide groove (4-9-1) and can move up and down along the height direction of the limiting slide groove (4-9-1).