Supporting device for kyphosis malformation correction surgery

Abstract

The invention relates to a supporting device for kyphosis deformity correction surgery, which comprises an arch-shaped bracket, the lower side surface of the arch-shaped bracket is a horizontal supporting surface, and the arch-shaped bracket is stably placed on the surface of an operating table; the upper side face is an arc-shaped face matched with the physiological curvature of the human spine. According to the supporting device for kyphosis deformity correction surgery, individual differences are accurately adapted, the arc-shaped face of the upper side face of the arch-shaped support accurately covers the chest and abdomen area of the human body and is attached to the normal spine physiological curvature, and compared with a traditional plane cushion, local compression or suspension caused by mismatching of the supporting face and the trunk contour of a patient can be avoided; trunk size differences of patients with different body types are adapted from the basic structure. The air bag single bodies arranged in a matrix mode are matched with the independent stop valves, and inflation and deflation of the air bags in the corresponding areas can be independently adjusted through the inflation pump according to the specific kyphosis malformation positions and angles of patients.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kyphosis treatment, in particular to a support device for kyphosis correction surgery. BACKGROUND

[0002] Kyphosis is a common spinal disease characterized by an abnormal excessive backward curvature of the spine. This pathological state not only affects the appearance of patients, but also can cause chronic pain, limited mobility, and even compression of internal organs in the thoracic cavity, affecting respiratory and cardiovascular function. Currently, the treatment of kyphosis is mainly divided into two categories: conservative treatment and surgical treatment. For moderate or severe deformities, surgical treatment is the most effective intervention, which mainly includes: orthopedic fusion surgery: by removing the deformed segment of the spine and then performing bone fusion to restore the normal physiological curvature of the spine. Orthopedic replacement surgery: by implanting spinal internal fixation devices (such as pedicle screws, rod systems, etc.) to correct deformities and reconstruct spinal stability. Regardless of the surgical approach, the precise positioning of the body position during surgery is the key to the success of the surgery and the difficulty of nursing. In order to obtain a clear surgical field and sufficient operating space, doctors usually require patients to maintain a prone position during surgery. The traditional approach is to place ordinary prone position bedding or soft padding under the patient's chest and abdomen. The above-mentioned scheme has the following limitations: large individual differences: the degree of deformity, kyphosis angle and position of each patient are unique; poor adaptability: standardized bedding cannot fully match the specific body type and lesion characteristics of the patient; difficult to fine-tune: during the operation, the doctor may need to make fine adjustments to the patient's body position according to the real-time orthopedic situation, and the traditional bedding cannot meet this dynamic demand. Therefore, how to develop a new prone position bedding, SUMMARY

[0003] The purpose of the present application is to provide a support device for kyphosis correction surgery, which can fully match the degree of deformity, kyphosis angle and position of the patient. And make fine adjustments to the patient's body position according to the real-time orthopedic situation during the operation.

[0004] The present application provides a support device for kyphosis correction surgery, which comprises:

[0005] An arched support, the lower side of the arched support is a horizontal support surface for stable placement on the surface of the operating bed; the upper side is an arc surface that matches the physiological curvature of the human spine;

[0006] A gas bag layer, the gas bag layer is fixedly installed on the upper side of the arched support; a plurality of gas bag monomers are uniformly distributed in the gas bag layer; in practice, the gas bag layer can be fixed with the arched support by magic tape or suturing; the plurality of gas bag monomers can be arranged in a straight line or matrix in the gas bag layer.

[0007] An elastic buffer layer is fixed to the upper side of the air bag layer; in practice, the elastic buffer layer can be fixed on the air bag layer by medical-grade glue.

[0008] An inflation pump is connected to each air bag monomer through an inflation hose; in practice, the inflation pump can be connected to each air bag monomer through an inflation hose with multiple branches; an independent stop valve can also be provided on each branch hose to individually control the inflation and deflation of the corresponding air bag monomer, thereby achieving local fine adjustment of the patient's prone position.

[0009] By adopting this scheme: the lower side of the arch-shaped support is horizontally supported to ensure that the device is stably placed on the operating bed, and the arc surface of the upper side of the arch-shaped support is attached to the physiological curvature of the human spine to provide ergonomic support reference for the patient in a prone position, thereby avoiding local suspension caused by traditional plane support. By one-to-one control of each air bag monomer, the inflation and deflation state of each air bag monomer is individually adjusted to change the local support height. By utilizing the deformation characteristics of the elastic material, the air bag is synchronously attached to the patient's skin with the expansion and contraction of the air bag, and uniform support force is transmitted.

[0010] Preferably, in the above-mentioned support device for kyphosis correction surgery, the curvature radius of the upper side of the arch-shaped support is 50-80 cm, the length of the upper side of the arch-shaped support is configured to be 40-60 cm to adapt to the human chest and abdominal region, and the width of the upper side of the arch-shaped support is configured to be 30-45 cm to adapt to the lateral size of the human torso.

[0011] In the above-mentioned scheme: the curvature radius, length, and width parameters of the arc surface are designed based on the physiological curvature of the human spine (normal thoracic kyphosis angle 20°-40°) and the size of the adult chest and abdominal region (longitudinal 40-60 cm covering thoracic 7-lumbar 2 region, lateral 30-45 cm adapting to the width of the torso), ensuring the fit of the support surface to the human body profile.

[0012] Preferably, in the above-mentioned support device for kyphosis correction surgery, the volume of each air bag monomer is 50-150 cm³, and the spacing between adjacent air bag monomers is configured to be 2-5 cm; in practice: the surface of each air bag monomer can also be coated with a puncture-resistant wear-resistant coating.

[0013] In the above-mentioned scheme: the size of the 50-150 cm³ air bag monomer ensures that the support height adjustment range meets the orthopedic requirements when inflated and deflated, and by setting the spacing of 2-5 cm, mutual extrusion of adjacent air bags during expansion and contraction is avoided, ensuring the independence of adjustment. By setting the coating on the surface of the air bag, accidental scratches by forceps, retractors, and other surgical instruments are prevented, and air leakage is prevented.

[0014] Preferably, in the support device for kyphosis correction surgery, the overall thickness of the air bag layer is 3-5 cm, the elastic buffer layer is made of medical memory foam or silicone material, further, the hardness of the air bag layer can be configured to be 20D-30D, and the surface can be covered with breathable antibacterial fabric, and the air permeability of the breathable antibacterial fabric can be configured to be ≥500g / (㎡·24h).

[0015] In the above scheme: by setting the air bag layer thickness of 3-5 cm, it is beneficial to balance the support stability and adjustment flexibility, and too thin can easily lead to insufficient support, and too thick can increase the adjustment response time. The material properties of the elastic buffer layer: the hardness setting of 20D-30D can have softness and resilience, and can disperse local pressure; the breathable antibacterial fabric with air permeability ≥500g / (㎡·24h) can ensure air circulation and inhibit bacterial growth.

[0016] Preferably, in the support device for kyphosis correction surgery,

[0017] The arc-shaped support includes an arc-shaped metal frame and an outer cloth cover, the arc-shaped metal frame includes a rectangular bottom frame and two arc-shaped columns symmetrically connected to both ends of the rectangular bottom frame; the outer cloth cover is detachably sleeved on the outside of the arc-shaped metal frame, and in practice, an elastic band that is bound to the contour of the arc-shaped metal frame can be arranged on the inside of the outer cloth cover, for preventing the outer cloth cover from sliding relative to the arc-shaped metal frame.

[0018] Preferably, in the support device for kyphosis correction surgery,

[0019] The arc-shaped metal frame is made of titanium alloy or stainless steel material; the length of the rectangular bottom frame is 50-70 cm, and the width is 35-50 cm, the height of the arc-shaped column is 15-25 cm, the outer cloth cover is made of medical oxford cloth, and the thickness of the outer cloth cover is 0.3-0.5 mm.

[0020] In the above scheme, the arc-shaped metal frame made of titanium alloy / stainless steel has high strength and corrosion resistance, and can withstand the erosion of disinfectant during surgery; the size of the rectangular bottom frame and the arc-shaped column is suitable for the specification of the operating bed. The medical oxford cloth with a thickness of 0.3-0.5 mm has balanced waterproofness and flexibility, avoiding easy breakage due to too thin thickness, and affecting heat dissipation of the metal frame due to too thick thickness.

[0021] Preferably, in the support device for kyphosis correction surgery, the arc-shaped column comprises a first arc column, a second arc column and a third arc column; the first arc column, the second arc column and the third arc column all comprise a hollow tube structure; the head end side wall of the first arc column and the head end side wall of the second arc column are respectively provided with a telescopic limiting protrusion made of elastic material, which can be contracted under external force; the two ends of the third arc column are respectively provided with a first insertion slot matched with the head end of the first arc column and a second insertion slot matched with the head end of the second arc column; the side wall of the first insertion slot and the side wall of the second insertion slot are respectively provided with at least two groups of spaced limiting holes, the diameter of the limiting holes is matched with the diameter of the telescopic limiting protrusion, and the overall length of the arc-shaped column is adjusted by clamping the telescopic limiting protrusion into different positions of the limiting holes.

[0022] Preferably, in the support device for kyphosis correction surgery,

[0023] The rectangular bottom frame comprises a first U-shaped frame and a second U-shaped frame; the first U-shaped frame and the second U-shaped frame are oppositely arranged, and two third insertion slots are symmetrically arranged on the side of the first U-shaped frame facing the second U-shaped frame; the tail ends of the two first arc columns are connected to the two ends of the first U-shaped frame in an integrated manner by welding or bolt fixing; the tail ends of the two second arc columns are connected to the two ends of the second U-shaped frame in an integrated manner by welding or bolt fixing; the second U-shaped frame is provided with two third insertion columns on the side facing the first U-shaped frame, the diameter of the third insertion column is matched with the inner diameter of the third insertion slot, so that the third insertion column can reciprocally move along the extension direction of the third insertion slot; in practice, the side wall of the third insertion column can also be provided with a scale line for accurately controlling the overall length of the rectangular bottom frame.

[0024] Preferably, in the support device for kyphosis correction surgery,

[0025] The outer cover is provided with a door body for placing the counterweight, and the door body adopts a zipper or magic tape sealing structure; the outer cover corresponding to the door body is used for placing a metal counterweight or a sandbag, and the overall weight of the arc-shaped support is increased to prevent the device from moving when the patient is in a prone position.

[0026] Preferably, in the support device for kyphosis correction surgery, it further comprises:

[0027] The second buffer layer is made of medical sponge material, and is fixedly installed between the upper side of the arc-shaped support and the air bag layer in a suturing manner; in practice, the surface of the second buffer layer can also be provided with a groove matched with the air bag monomer for positioning the air bag layer to avoid the air bag monomer from deviating during the inflation and deflation process, and the local pressure of the arc-shaped support on the air bag layer is buffered to make the air bag layer bear force more evenly.

[0028] Compared with the prior art, the present application has the following technical progress:

[0029] Firstly, the upper side arc surface of the arched support of the present application precisely covers the chest and abdominal region of the human body, and is matched with the normal physiological curvature of the spine. Compared with the traditional flat soft cushion, it can avoid local compression or suspension caused by the mismatch between the support surface and the patient's trunk contour, and adapt to the size difference of the trunk of patients of different body types from the basic structure.

[0030] Secondly, by realizing independent control of each air bag monomer, the present application can realize point-to-point body position adjustment according to the specific kyphosis position (such as the middle thoracic vertebrae and thoracolumbar segment) and angle of the patient, and solve the problem that the traditional lying tool cannot adapt to the individual deformity characteristics.

[0031] Thirdly, based on the structure of the present application, medical staff can adjust the air bag pressure in real time through the multi-way inflation hose without moving the patient, and the response speed is much faster than the traditional "pad taking soft pad" method. Especially in orthopedic fusion surgery, when the doctor adjusts the position of the internal fixation device according to the intraoperative fluoroscopy results, the air bag support state can be adjusted synchronously, ensuring that the patient's body position and orthopedic angle always match, and reducing the interruption time of surgical operation.

[0032] Fourthly, the present application can realize the telescopic adjustment of the overall size of the equipment, which can adapt to different specifications of the operating bed and meet the support needs of patients of different heights. Compared with the traditional lying tool with fixed size, its versatility is greatly improved, and the equipment procurement cost of medical institutions is reduced.

[0033] Fifthly, by setting a multi-layer buffer structure, the present application realizes pressure dispersion: the elastic buffer layer directly contacts the patient's skin, and its soft material can disperse the local pressure of the chest and abdomen, avoiding skin pressure sores caused by traditional hard lying tools, especially for patients with long-term surgery, the protection effect is remarkable; the second buffer layer is arranged between the arched support and the air bag layer, which can not only avoid the uneven pressure caused by the deviation of the air bag when inflated and deflated, but also buffer the local extrusion of the air bag by the metal support, prevent the air bag from breaking due to concentrated force, and improve the safety of equipment use.

[0034] Sixthly, in the present application, metal counterweights / sandbags can be placed inside the outer cover to increase the overall weight of the arched support, preventing displacement of the device when the patient turns over or collides during surgical operation. Compared with the traditional unweighted lying tool, its anti-displacement stability is greatly improved, especially in prone position spinal orthopedic surgery, which can avoid the displacement of the patient's body position caused by the sliding of the device, ensure the accuracy of the surgical field, and reduce the risk of implantation deviation of the internal fixation device.

[0035] Finally, the structure of the present application is simple, easy to prepare and realize. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1This is a schematic diagram of the structure of Example 1, in which the shut-off valve is omitted.

[0037] Figure 2 for Figure 1 A schematic diagram of the split structure of the central arched support.

[0038] Figure 3 This is a schematic diagram of the first structure of the arc-shaped metal frame in Example 2.

[0039] Figure 4 This is a schematic diagram of the second structure of the arc-shaped metal frame in Example 2.

[0040] Figure 5 for Figure 4 A diagram showing the internal structure of the connection between the third arc column and the first arc column.

[0041] Figure 6 This is a schematic diagram of the structure of Example 3, in which the shut-off valve is omitted.

[0042] Figure 7 This is a schematic diagram of the structure of Example 4, in which the shut-off valve is omitted.

[0043] The component names corresponding to the various labels in the diagram are as follows:

[0044] 100. Arched bracket; 200. Airbag layer; 300. Elastic buffer layer; 400. Inflation pump; 500. Second buffer layer; 110. Arc-shaped metal frame; 120. Outer fabric cover; 130. Zipper; 111. First arc column; 112. Second arc column; 113. Third arc column; 114. Telescopic limiting protrusion; 115. Limiting hole; 116. First U-shaped frame; 117. Second U-shaped frame; 118. Third insertion post; 119. First slot; 410. Inflation hose. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Example 1, please refer to Figures 1-2 :

[0047] The present invention provides a support device for kyphosis correction surgery, comprising: an arched support 100, an air bladder layer 200, an elastic buffer layer 300, and an air pump 400.

[0048] The lower side of the arched support 100 is a horizontal support surface for stable placement on the operating table surface; the upper side of the arched support 100 is an arc-shaped surface for adapting to the physiological curvature of the human spine; the arched support 100 includes an arc-shaped metal frame 110 and an outer fabric cover 120. The arc-shaped metal frame 110 includes a rectangular base frame and two arc-shaped columns symmetrically connected to the two ends of the long side of the rectangular base frame; the outer fabric cover 120 is detachably fitted onto the outside of the arc-shaped metal frame 110. In practice, the inner side of the outer fabric cover 120 can also be provided with an elastic strap that matches the contour of the arc-shaped metal frame 110 to prevent the outer fabric cover 120 from sliding relative to the arc-shaped metal frame 110. The edge of the outer fabric cover 120 can be provided with a zipper or snap fastener structure for easy disassembly, cleaning and disinfection.

[0049] The airbag layer 200 is fixedly installed on the upper side of the arched bracket 100 by Velcro or stitching, and is completely fitted to the arc surface; the airbag layer 200 has a number of airbag units evenly distributed in a matrix arrangement along the arc surface.

[0050] The elastic buffer layer 300 is attached and fixed to the upper side of the airbag layer 200 with medical-grade adhesive;

[0051] The air pump 400 is connected to each individual airbag unit via an inflation hose 410 with multiple branches. Each inflation hose 410 is equipped with an independent shut-off valve (not shown in the figure), which allows for individual control of the inflation and deflation of the corresponding airbag unit, enabling localized fine-tuning of the patient's prone position. In practice, multiple air pumps can also be used to connect to each airbag unit separately to achieve individual control of each airbag unit.

[0052] The horizontal support on the lower side ensures the device is stably placed on the operating table, while the curved surface on the upper side conforms to the physiological curvature of the human spine, providing an ergonomic support benchmark for the patient when prone, avoiding localized suspension caused by traditional planar support. The matrix-arranged individual airbags are fixed to the curved surface via Velcro / stitching, forming a "one-to-one" control unit with the air pump 400 and multi-way inflation hose 410. This allows for individual adjustment of the inflation and deflation of each airbag, changing the local support height. Fixed above the airbag layer 200 with medical adhesive, the airbags utilize the deformation properties of elastic materials (such as memory foam / silicone) to conform to the patient's skin synchronously with the expansion and contraction of the airbags, transmitting uniform support. This addresses the "standardization" pain point of traditional bedding: the independent adjustment of the individual airbags in the airbag layer 200 allows for precise adaptation to different patient body types (such as trunk width) and lesion locations (such as thoracic / thoracolumbar kyphosis), avoiding localized compression or insufficient support. The patient's position can be finely adjusted using an air pump 400 without moving the patient, ensuring that the prone position and the orthopedic angle are matched in real time, reducing surgical interruption time and improving operational efficiency.

[0053] In this example, the radius of curvature of the arc-shaped surface ranges from 50cm to 80cm, and the length of the arc-shaped surface is 40cm to 60cm, covering the chest and abdomen area of ​​the human body. Its width is 30cm to 45cm, perfectly matching the lateral dimensions of the human torso. This avoids insufficient support due to an excessively small arc-shaped surface or resource waste due to an excessively large size, covering the chest and abdomen support needs of over 90% of adult patients and reducing postural deviations caused by mismatched basic structures. In this example, each airbag unit has a volume of 50cm³ to 150cm³, and the spacing between adjacent airbag units is 2cm to 5cm. The surface of each airbag unit is coated with a puncture-resistant and abrasion-resistant coating. The small-volume, reasonably spaced airbag units in the airbag layer 200 allow for point-to-point fine-tuning (such as localized deflation of the posterior protruding tip), improving adjustment accuracy by more than 60% compared to traditional large-size airbags. The puncture-resistant coating reduces the breakage rate of individual airbags by 80%, decreasing equipment maintenance costs and ensuring no sudden air leakage risk during surgery. The overall thickness of the airbag layer 200 is 3cm-5cm, and the elastic cushioning layer 300 is made of medical memory foam or silicone with a hardness of 20D-30D. In practice, the surface of the elastic cushioning layer 300 can also be covered with a breathable antibacterial fabric, with a breathability rate ≥500g / (㎡・24h). By setting the elastic cushioning layer 300, the contact pressure on the chest and abdomen can be reduced from 80mmHg in traditional bedding to below 30mmHg, avoiding pressure sores caused by prolonged prone positioning; the breathable fabric helps reduce skin stuffiness and lowers the incidence of postoperative skin redness. It achieves an inhibition rate of ≥95% against Escherichia coli and Staphylococcus aureus, meeting the aseptic requirements of the operating room and reducing the risk of cross-infection.

[0054] The arched support 100 provides stable support through a rigid framework composed of a rectangular base frame and symmetrical arc-shaped columns. The outer fabric cover 120, with its zipper or snap fastener structure, is easy to disassemble, facilitating postoperative cleaning and disinfection and preventing blood and disinfectant residue. The arc-shaped metal frame 110 has a load-bearing capacity of ≥150kg, supporting patients of different weights and avoiding the collapse risk of traditional sponge supports. Elastic straps can also be added to the outer fabric cover to ensure a closer fit, reducing intraoperative displacement. The detachable outer fabric cover 120 can be sterilized at high temperatures (134℃ high-pressure steam), improving sterilization efficiency by 50% compared to traditional one-piece bedding, meeting the needs of reusable operating rooms.

[0055] In this example, the curved metal frame 110 is made of titanium alloy or stainless steel; the rectangular base frame is 50cm-70cm long and 35cm-50cm wide, the curved column is 15cm-25cm high, and the outer cover 120 is made of waterproof and stain-resistant medical Oxford cloth with a thickness of 0.3mm-0.5mm. The choice of titanium alloy / stainless steel materials combines high strength (tensile strength ≥500MPa) and corrosion resistance, allowing it to withstand the erosion of disinfectants (such as iodine and alcohol) during surgery; the dimensions of the rectangular base frame and curved column are adapted to the operating table specifications. The 0.3mm-0.5mm thickness of the medical Oxford cloth balances waterproofness and flexibility; too thin and it is easily damaged, too thick and it affects the heat dissipation of the curved metal frame 110.

[0056] The curved metal frame 110 has a service life of over 5 years, which is 3 times longer than that of ordinary aluminum alloy frames; the outer fabric cover 120 is waterproof, ensuring a liquid penetration rate of ≤5%, preventing the curved metal frame 110 from rusting due to liquid corrosion. The curved metal frame 110 is sized to fit more than 80% of the operating table widths on the market (80cm-120cm), reducing equipment downtime caused by incompatible table specifications.

[0057] Example 2, please refer to Figures 3-5 :

[0058] The difference between Example 2 and Example 1 is that the arc-shaped column includes a first arc-shaped column 111, a second arc-shaped column 112, and a third arc-shaped column 113, all of which are hollow tubular structures. The first arc-shaped column 111 and the second arc-shaped column 112 are respectively provided with elastic material telescopic limiting protrusions 114. The telescopic limiting protrusions 114 can retract under external pressure. The two ends of the third arc-shaped column 113 are respectively provided with a first slot 119 adapted to the head end of the first arc-shaped column 111 and a second slot adapted to the head end of the second arc-shaped column 112. The side walls of the first slot 119 and the second slot are respectively provided with at least two sets of spaced limiting holes 115. The diameter of the limiting holes 115 is adapted to the diameter of the telescopic limiting protrusions 114. By inserting the telescopic limiting protrusions 114 into the limiting holes 115 at different positions, the overall length of the arc-shaped column can be adjusted.

[0059] The first arc column 111 and the second arc column 112 are respectively inserted into the first slot 119 and the second slot at both ends of the third arc column 113. The elastic telescopic limiting protrusions 114 on the first arc column 111 and the second arc column 112 engage with limiting holes 115 at different positions on the sidewalls of the slots, adjusting the overall length of the arc column to 20cm-30cm. The height of the arc column (15cm-25cm) can be adjusted according to the patient's kyphosis angle (15°-80°). For example, for patients with severe kyphosis, the arc column can be raised to provide more orthopedic space.

[0060] Furthermore, the rectangular base frame includes a first U-shaped frame 116 and a second U-shaped frame 117, both of which are solid rod-like structures with rectangular cross-sections. The first U-shaped frame 116 and the second U-shaped frame 117 are arranged facing each other, and two third slots are symmetrically arranged on the side of the first U-shaped frame 116 facing the second U-shaped frame 117. The tail end of the first arc column 111 is fixedly connected to both ends of the first U-shaped frame 116 by welding or bolts. Two third inserts 118 are correspondingly arranged on the side of the second U-shaped frame 117 facing the first U-shaped frame 116. The diameter of the third inserts 118 is adapted to the inner diameter of the third slot, and can move along the length direction of the third slot. The side wall of the third inserts 118 is provided with scale lines for precise control of the overall length of the rectangular base frame. The tail end of the second arc column 112 is fixedly connected to both ends of the second U-shaped frame 117 by welding or bolts.

[0061] The first U-shaped frame 116 and the second U-shaped frame 117 of the rectangular base frame are set facing each other. The third insert 118 on the second U-shaped frame 117 slides along the third slot of the first U-shaped frame 116. The length of the rectangular base frame (50cm-70cm) is precisely controlled by the scale lines (1cm accuracy) on the side wall of the third insert 118. The tail end of the first arc column 111 is fixed to the first U-shaped frame 116, and the tail end of the second arc column 112 is fixed to the second U-shaped frame 117. Welding / bolt connection ensures structural stability. It can adapt to the torso length requirements of patients with a height of 150cm-190cm, avoiding insufficient support due to the rectangular base frame being too short, or excessive operating space occupation due to the rectangular base frame being too long. The scale lines ensure that the length adjustment error is ≤1cm, ensuring accurate support position.

[0062] Example 3, please refer to Figure 6 :

[0063] The difference between Example 3 and Example 1 is that Example 3 further includes a second buffer layer 500. This second buffer layer 500 is made of medical-grade sponge and is fixedly installed between the upper side of the arched support 100 and the airbag layer 200 by stitching. In practice, the surface of the second buffer layer 500 can also be provided with grooves adapted to the airbag unit to position the airbag layer 200, preventing the airbag unit from shifting during inflation and deflation, and simultaneously buffering the local pressure of the arched support 100 on the airbag layer 200, making the force on the airbag layer 200 more even. In the above solution, the groove positioning ensures that the offset of the airbag unit in the airbag layer 200 is ≤1mm, avoiding positional deviation caused by airbag offset; extending the lifespan of the airbag; and ensuring adjustment accuracy.

[0064] Example 4, please refer to Figure 7 :

[0065] The difference between Example 4 and Example 1 is that: the outer fabric sleeve 120 has a door for placing counterweights, and the door is sealed with a zipper 130 or Velcro. A metal counterweight or sandbag can be placed inside the outer fabric sleeve 120 corresponding to the door, increasing the overall weight of the arched support 100 and preventing displacement of the device when the patient is prone. The door on the outer fabric sleeve 120 is sealed with a zipper 130 or Velcro, and a waterproof storage bag is provided inside the outer fabric sleeve 120 corresponding to the door, which can hold a metal counterweight or sandbag, increasing the overall weight of the arched support 100 (by 2kg-5kg). This uses gravity to counteract the lateral thrust when the patient is prone, preventing device displacement. The counterweight structure reduces the displacement rate of the arched support 100, making it particularly suitable for scenarios requiring frequent instrument adjustments in orthopedic replacement surgery, avoiding surgical field deviation caused by device slippage. In this example, the device used in kyphosis correction surgery employs a core design logic of "rigid support + dynamic adjustment + cushioning protection." A stable arched support 100 is formed by a skeleton constructed from an arc-shaped metal frame 110 (titanium alloy / stainless steel) and wrapped with an outer fabric cover 120. The horizontal support on the lower side ensures the device is fixed to the operating table, while the arc-shaped upper side conforms to the physiological curvature of the human spine, providing baseline support for the patient's prone position. A matrix-arranged airbag layer 200, along with an air pump 400 and multiple inflation hoses 410, constitutes a one-to-one local adjustment unit. Inflation and deflation can change the support height of corresponding areas, enabling fine-tuning of the patient's position. An elastic cushioning layer 300 (memory foam / silicone) directly contacts the patient's skin, dispersing local pressure. A second cushioning layer 500 (medical sponge) cushions the arched support 100 from compressing the airbag layer 200 and positions the individual airbags. The counterweight structure of the outer fabric cover 120 (waterproof storage bag + counterweight) further enhances the device's stability and prevents displacement during surgery.

[0066] In practice, its complete usage process is as follows:

[0067] Phase 1, Preoperative Preparation:

[0068] The size adjustment of the arched support 100 (for embodiments 2 and 4): If the patient has severe kyphosis (angle > 60°), press the telescopic limiting protrusion 114 on the first arc column 111 and the second arc column 112, and pull it outward along the first slot 119 and the second slot of the third arc column 113, so that the telescopic limiting protrusion 114 is inserted into the outermost limiting hole 115, and the height of the arc column is increased from 15cm to 25cm, leaving sufficient orthopedic space; if it is mild kyphosis (angle < 30°), shorten the height of the arc column to about 18cm to reduce the support gap.

[0069] Based on the patient's height (e.g., a 170cm adult), push the second U-shaped frame 117 to allow the third insert 118 to slide along the third slot of the first U-shaped frame 116. Referring to the scale lines on the side wall of the third insert 118, adjust the length of the rectangular base frame from 50cm to 60cm to ensure coverage of the patient's T7-L2 region (approximately 45cm), avoiding local suspension due to insufficient support. Open the zipper 130 on the outer fabric cover 120 and insert two 2kg metal counterweights inward to increase the overall weight of the arched support 100, preventing the device from sliding during surgery due to patient turning or instrument manipulation.

[0070] Inspect the buffer layer and airbag layer (for Examples 1 and 3). Confirm that the elastic buffer layer 300 (25D memory foam) is firmly attached to the airbag layer 200 with medical adhesive, and that the antibacterial fabric on the surface is undamaged. For Example 3, check whether the grooves on the surface of the second buffer layer 500 correspond one-to-one with the airbag units, ensuring that the airbag units do not shift after being placed in the grooves. Connect the air pump 400 and the multi-way inflation hose 410, open all the shut-off valves, and inflate all the airbag units of the airbag layer 200 to 50% pressure (approximately 0.02 MPa). Check for leaks (observe whether the pressure display panel is stable), then deflate to the initial state and wait for use.

[0071] Phase 2, Intraoperative Positioning Support and Dynamic Adjustment:

[0072] The patient is placed in a prone position. Assist the patient from a lateral decubitus position to a prone position, ensuring the chest and abdomen are centered and pressed against the surface of the elastic buffer layer 300. Ensure the patient's head is turned to one side (to avoid suffocation) and both arms are naturally placed at their sides. At this time, the arc-shaped surface of the upper side of the arched support 100 conforms to the contour of the patient's torso, initially dispersing pressure on the chest and abdomen. For patients with mid-thoracic kyphosis: Preoperative imaging confirms that the apex of the kyphosis is located in the T9-T11 segment. Operate the air pump 400, close the shut-off valves of the three individual airbags in the corresponding area, and slowly deflate until the pressure drops to 0.01 MPa, reducing the support height of this area by 2-3 cm to avoid pressure on the kyphotic area. Simultaneously, inflate the individual airbags in the T6-T8 and T12-L1 areas on both sides to 0.03 MPa to enhance lateral support stability and prevent the patient's torso from tilting to one side.

[0073] Intraoperative real-time fine-tuning: During orthopedic fusion surgery, when the surgeon discovers through fluoroscopy that the position of the internal fixation screws needs to be finely adjusted (such as shifting it 1mm to the left), the surgeon immediately operates the air pump 400 to supplement the pressure of the right balloon unit with 0.005MPa and deflate the left balloon unit by 0.005MPa. Through the slight difference in support, the surgeon guides the patient's torso to shift slightly to the left, so that the screw position is aligned with the planned path. The entire adjustment process does not require moving the patient and takes only about 30 seconds, which is faster than the traditional method of removing and replacing soft pads.

[0074] If the surgery lasts more than 4 hours, the pressure of the airbag layer 200 needs to be checked regularly (observe the inflation pump panel every hour). If the airbag pressure in a certain area drops by more than 0.003 MPa, it is judged as a slight leak. Immediately close the corresponding shut-off valve, replace the spare inflation hose 410, and re-inflate to the target pressure. At this time, the groove of the second buffer layer 500 can prevent the airbag unit from shifting laterally due to pressure changes, ensuring that the support position remains unchanged.

[0075] Phase 3, Postoperative Care and Equipment Maintenance:

[0076] After patient transfer and device disassembly, and following the procedure, first open the shut-off valves of all individual airbag units to release the gas within the airbag layer 200 (approximately 1 minute). Once the elastic buffer layer 300 has returned to its flat state, assist the patient to turn to a lateral decubitus position. Then, remove the arched support 100 from under the operating table to avoid scratching the patient's body. Remove the outer fabric cover 120 (unzip / fasten the edge zipper) and place it in a medical sterilization bag for sterilization using 134℃ high-pressure steam for 30 minutes. Wipe the surface of the curved metal frame 110 with 75% alcohol to remove blood and disinfectant residue. Wipe the inflation pump 400 and inflation hose 410 with sterile gauze and store them in a dry, sterile cabinet. Check the airbag layer 200 for damage (such as scratches on the puncture-resistant coating). If a single airbag is found to be leaking, that individual airbag unit can be replaced to reduce maintenance costs.

[0077] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support device for kyphosis correction surgery, characterized in that, The support device for kyphosis correction surgery comprises an arc-shaped support with a horizontal support surface on the lower side for stable placement on the surface of an operating bed and an arc-shaped surface on the upper side that is adapted to the physiological curvature of the human spine; a gas bag layer fixedly installed on the upper side of the arc-shaped support, with a plurality of gas bag units uniformly distributed in the gas bag layer; an elastic buffer layer fixed to the upper side of the gas bag layer; and an inflation pump connected to each gas bag unit through an inflation hose.

2. The support device for kyphosis correction surgery according to claim 1, wherein the radius of curvature of the upper side of the arc-shaped support is 50-80 cm, the length of the upper side of the arc-shaped support is 40-60 cm, and the width of the upper side of the arc-shaped support is 30-45 cm.

3. The support device for kyphosis correction surgery according to claim 2, wherein the volume of each gas bag unit is 50-150 cm3, and the spacing between adjacent gas bag units is 2-5 cm.

4. The support device for kyphosis correction surgery according to claim 3, wherein the overall thickness of the gas bag layer is 3-5 cm, and the elastic buffer layer is made of medical memory foam or silicone.

5. The support device for kyphosis correction surgery according to claim 4, wherein the arc-shaped support comprises an arc-shaped metal frame and an outer cloth cover, the arc-shaped metal frame comprises a rectangular base frame and arc-shaped columns symmetrically connected to the two ends of the rectangular base frame, and the outer cloth cover is detachably sleeved on the outer side of the arc-shaped metal frame.

6. The support device for kyphosis correction surgery according to claim 5, wherein the arc-shaped metal frame is made of titanium alloy or stainless steel, the length of the rectangular base frame is 50-70 cm, the width is 35-50 cm, the height of the arc-shaped column is 15-25 cm, and the outer cloth cover is made of waterproof and antifouling medical Oxford cloth with a thickness of 0.3-0.5 mm.

7. The support device for kyphosis correction surgery according to claim 6, wherein the arc-shaped column comprises a first arc column, a second arc column, and a third arc column, the head end side wall of the first arc column and the head end side wall of the second arc column are respectively provided with elastic material telescopic limiting protrusions, the two ends of the third arc column are respectively provided with a first insertion slot adapted to the head end of the first arc column and a second insertion slot adapted to the head end of the second arc column, and the side walls of the first insertion slot and the second insertion slot are respectively provided with at least two groups of spaced limiting holes.

8. The support device for kyphosis correction surgery according to claim 7, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The rectangular bottom frame comprises a first U-shaped frame and a second U-shaped frame; the first U-shaped frame and the second U-shaped frame are oppositely arranged, and a third insertion slot is symmetrically arranged on the side of the first U-shaped frame facing the second U-shaped frame; the tail end of the first arc column is fixedly connected with the first U-shaped frame as a whole; the tail end of the second arc column is fixedly connected with the second U-shaped frame as a whole; a third insertion column is arranged on the side of the second U-shaped frame facing the first U-shaped frame, and the third insertion column is matched with the third insertion slot.

9. The support device for correction of kyphotic deformity according to claim 8, wherein, A door is arranged on the outer cover, and the door is sealed by a zipper or a magic tape sealing structure.

10. The support device for correction of kyphotic deformity according to claim 9, characterized in that Further comprising: A second buffer layer made of medical sponge material is fixedly installed between the upper side of the arc-shaped support and the air bag layer.

Images