Waist supporting pillow

Abstract

The invention relates to a waist supporting pillow which comprises an upper cavity air bag (1) used for supporting a thoracolumbar junction area, a middle cavity air bag (2) used for supporting a lumbar vertebra area and a lower cavity air bag (3) used for supporting a lumbosacral junction area. The upper cavity air bag (1), the middle cavity air bag (2) and the lower cavity air bag (3) are sequentially arranged and are connected with the same main inflation assembly (4) through air pipes, and the upper cavity air bag (1), the middle cavity air bag (2) and the lower cavity air bag (3) are respectively connected with an air pressure fine adjustment assembly (5). Compared with the prior art, the device has the advantages that fine partition supporting can be carried out, and the air bags in all the cavities are independently and accurately fine-tuned.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a lumbar support pillow. Background Art

[0002] Lumbar support pillows meet ergonomic requirements, providing better health support and comfort during prolonged sitting, standing, or sleeping. However, existing lumbar support pillows do not provide detailed support for the anatomical differences in the lumbar spine's physiological curvature (such as the thoracolumbar junction, the main lumbar support area, and the lumbar sacral region), which may result in insufficient support in specific areas (such as the L3-L4 strain zone).

[0003] Patent CN210018586U discloses a functional lumbar support adjustment device, including an inflatable liner and an outer shell. The inflatable liner includes a soft modular combined inflatable liner and a pressure-filling and deflation assembly. The soft modular inflatable liner includes a combination of multiple inflatable modules of different sizes and shapes. The inflating of each module causes it to bulge, and according to the principles of structural mechanics, its shape changes to adapt to the different pressures required for different parts of the human waist. By adjusting the inflating or deflation, it can achieve the optimal relief effect for different users of different heights, weights, and waist curvatures. The outer shell and the modular inflatable liner are detachably connected. The back of the lumbar support outer shell is equipped with a binding strap assembly, which is used to secure it to the required carrier, allowing the lumbar support to achieve its function. However, each module of the device adopts a hollow inflatable design and is connected by a channel. When inflated, the modules expand due to the air pressure, forming a linkage, making it difficult to achieve independent and precise fine-tuning of each module. Summary of the Invention

[0004] The purpose of the present invention is to provide a lumbar support pillow that can achieve independent and precise fine-tuning of different support airbags.

[0005] The object of the present invention can be achieved by the following technical solution: a lumbar support pillow, comprising an upper cavity airbag for supporting the thoracolumbar junction area, a middle cavity airbag for supporting the lumbar region, and a lower cavity airbag for supporting the lumbar sacral junction area;

[0006] The upper cavity airbag, middle cavity airbag and lower cavity airbag are arranged in sequence and are all connected to the same main inflation component through the trachea, and the upper cavity airbag, middle cavity airbag and lower cavity airbag are respectively connected to the air pressure fine-tuning component.

[0007] Preferably, the upper cavity airbag is used to support the T12-L2 thoracolumbar junction area, the middle cavity airbag is used to support the L3-L4 lumbar region, and the lower cavity airbag is used to support the L5-S1 lumbar sacral junction area.

[0008] Preferably, the upper cavity airbag, the middle cavity airbag and the lower cavity airbag are independently arranged in sequence, and adjacent sides are not connected to each other.

[0009] Preferably, the upper cavity airbag covers the vertebrae from T12 to L2 along the length direction of the human body, and the transverse curvature of the upper cavity airbag fits the physiological kyphosis of the thoracolumbar junction.

[0010] Preferably, the upper cavity airbag has a convex surface along the length direction of the human body, which is high in the middle and low on both sides and is used to guide the upper lumbar spine to maintain a neutral position.

[0011] Preferably, the middle cavity airbag covers the L3-L4 vertebral bodies along the length direction of the human body and has a convex arc shape with a high middle and low sides.

[0012] Further preferably, the height of the leading edge of the middle cavity airbag is smaller than that of the trailing edge.

[0013] Preferably, a plurality of honeycomb units are provided in the middle cavity airbag.

[0014] More preferably, each honeycomb unit has a side length of 1.4 to 1.6 cm and a honeycomb wall thickness of 0.25 to 0.35 cm.

[0015] More preferably, each honeycomb unit has a side length of 1.5 cm and a honeycomb wall thickness of 0.3 cm.

[0016] Further preferably, the thickness direction of the honeycomb unit is perpendicular to the length direction of the human body.

[0017] Preferably, the lower cavity airbag covers the L5-S1 vertebral body along the length direction of the human body and has an inclined structure with a high front edge and a low rear edge.

[0018] Further preferably, the rear edge of the lower chamber airbag extends with a chamfer angle of 14 to 16 degrees.

[0019] More preferably, the trailing edge of the lower chamber airbag extends with a 15° chamfer.

[0020] Preferably, the inflation component includes a hand-kneaded silicone airbag, the outlet of the hand-kneaded silicone airbag is connected to a three-way air tube, and the three branches of the three-way air tube are respectively connected to the upper cavity airbag, the middle cavity airbag and the lower cavity airbag, forming a parallel air circuit with one pump and three chambers.

[0021] Further preferably, each of the three branches is provided with a one-way valve for preventing the backflow of gas in the airbag.

[0022] More preferably, the air pressure fine-tuning component includes a micro knob valve, which is arranged on the three-way branch and located between the one-way valve and the airbag.

[0023] Further preferably, the three branches of the three-way air path have different colors, and each branch has the same color as its corresponding airbag.

[0024] Preferably, the upper cavity airbag, the middle cavity airbag and the lower cavity airbag are all arranged on the same support cushion, and straps for fixing the support cushion to the mattress of the hospital bed are connected to both sides of the support cushion.

[0025] Further preferably, the length of the strap is 50-120 cm.

[0026] Further preferably, the strap is provided with Velcro.

[0027] In the present invention, Velcro straps (adjustable in length from 50 to 120 cm) are extended on both sides of the lumbar support pillow, and can be adapted to a standard hospital bed (80 to 100 cm in width) and a transfer bed.

[0028] Further preferably, the strap is provided with a magnetic bed rail buckle.

[0029] In the present invention, the straps equipped with magnetic bed rail buckles can be used in scenarios without mattresses, such as hard beds in operating rooms.

[0030] Further preferably, the bottom of the support pad is provided with an anti-slip structure.

[0031] Preferably, the lumbar support pillow comprises an upper cavity airbag, a middle cavity airbag, a lower cavity airbag and a sacrum and coccyx decompression airbag which are arranged in sequence.

[0032] Further preferably, the sacral coccyx decompression airbag adopts a honeycomb airbag grid, which forms an elastic suspended support after inflation.

[0033] More preferably, the sacrococcygeal decompression airbag forms an elastic suspended layer with a height of 2-3 cm after inflation.

[0034] In the present invention, the contact area between the sacral and coccyx decompression airbag and the human body is increased by 40% compared with the traditional flat airbag, which can reduce the pressure in the sacral and coccyx area.

[0035] Further preferably, the sacrococcygeal decompression airbag is used to support the S1-S5 region.

[0036] Further preferably, the sacral coccyx decompression airbag is connected to the same main inflation assembly as the upper cavity airbag, the middle cavity airbag and the lower cavity airbag through the trachea.

[0037] Preferably, annular restraint belts for fixing the lower limb knee joint extend from both sides of the lower chamber airbag.

[0038] Further preferably, the restraint belt has a built-in angle sensor, and the angle sensor signal is connected to an alarm.

[0039] Preferably, turning over traction rope assemblies are detachably installed on both sides of the central cavity airbag.

[0040] Further preferably, the end of the turning over traction rope assembly is provided with a hook and loop for connecting to the bed rail.

[0041] Preferably, an antibacterial breathable layer is provided at the contact point between the lumbar support cushion and the human body.

[0042] Further preferably, the antibacterial breathable layer is made of bamboo charcoal fiber + silver ion composite fabric.

[0043] In the present invention, the air permeability of the bamboo charcoal fiber + silver ion composite fabric is better than that of the traditional cotton layer (air permeability 1800g / (m 2 ·24h)).

[0044] Preferably, the lumbar support pillow adopts a foldable airbag structure, has a storage thickness of less than 8 cm, a weight of less than 1.2 kg, and is equipped with a portable backpack.

[0045] In the present invention, the lumbar support pillow adopts a portable storage design, which supports rapid deployment and transportation beside the bed.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] 1. The present invention provides fine-grained zoning support based on the anatomical differences in the physiological curvature of the lumbar spine (such as the thoracolumbar junction, the main lumbar support area, and the lumbar sacral region) through the coordinated arrangement of the upper, middle, and lower cavities, resulting in a better support effect.

[0048] 2. Each airbag in the present invention is independently inflated and can be precisely adjusted independently through the air pressure fine-tuning component, making it more adaptable to patients of different body shapes;

[0049] 3. The lumbar support pillow of this invention features a zoned design. The upper airbag enhances the stability of the thoracolumbar junction and prevents excessive kyphosis of the upper lumbar spine. The middle airbag serves as the main support area, targeting the maximum stress point of the lumbar spine. The lower airbag disperses the pressure of the lumbar region and improves the support effect.

[0050] 4. This invention provides zoned support for the physiological curvature of the lumbar spine (T12-L2 thoracolumbar junction, L3-L4 main support area, L5-S1 lumbar sacral area), ensuring support for areas prone to strain such as L3-L4, thereby reducing the incidence of low back pain in postoperative patients.

[0051] 5. The present invention actively reduces the pressure on the sacrum and coccyx by setting the sacral decompression airbag, thereby reducing the incidence of pressure sores;

[0052] 6. The present invention has the advantages of precise anatomical support, dynamic adjustment and multi-scenario adaptation. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 The structure diagram of the lumbar support pillow of the present invention is shown in FIG. Figure 1 ;

[0054] Figure 2 The structure diagram of the lumbar support pillow of the present invention is shown in FIG. Figure 2 ;

[0055] Figure 3 for Figure 2 sectional view of

[0056] Figure 4 sectional views of the upper cavity airbag, the middle cavity airbag and the lower cavity airbag of the present invention;

[0057] Figure 5 The structure diagram of the lumbar support pillow of the present invention is shown in FIG. Figure 3 ;

[0058] Figure 6 Schematic diagram of the internal structure of the middle cavity airbag of the present invention;

[0059] Figure 7 Schematic diagram of the internal partial structure of the middle cavity airbag of the present invention;

[0060] Figure 8 This is a schematic structural diagram of the main inflation component, air pressure fine-tuning component and one-way valve of the present invention;

[0061] Figure 9 This is a schematic diagram of how to use the lumbar support pillow of the present invention;

[0062] Figure 10 Schematic diagram of the anti-slip structure of the support pad of the present invention;

[0063] In the figure: 1-upper chamber airbag, 2-middle chamber airbag, 3-lower chamber airbag, 4-main inflation component, 5-air pressure fine-tuning component, 6-one-way valve, 7-support cushion, 8-strap. DETAILED DESCRIPTION

[0064] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0065] Example 1

[0066] A lumbar support pillow, such as Figures 1-2 As shown, it includes an upper cavity airbag 1, a middle cavity airbag 2 and a lower cavity airbag 3 which are arranged in sequence from the front (near the head) to the back (near the feet) along the length of the human body, wherein the upper cavity airbag 1 is used to support the thoracolumbar junction area, the middle cavity airbag 2 is used to support the lumbar spine area, and the lower cavity airbag 3 is used to support the lumbar sacral junction area.

[0067] In this embodiment, the upper cavity airbag 1, the middle cavity airbag 2 and the lower cavity airbag 3 are independently provided, and adjacent sides are not connected to each other.

[0068] In this embodiment, the upper chamber airbag 1, the middle chamber airbag 2 and the lower chamber airbag 3 are connected to the same main inflation component 4 through an air tube, and the upper chamber airbag 1, the middle chamber airbag 2 and the lower chamber airbag 3 are respectively connected to an air pressure fine-tuning component 5.

[0069] Example 2

[0070] A lumbar support pillow. In this embodiment, the upper cavity airbag 1 is used to support the T12-L2 thoracolumbar junction area, the middle cavity airbag 2 is used to support the L3-L4 lumbar region, and the lower cavity airbag 3 is used to support the L5-S1 lumbar sacral junction area.

[0071] like Figures 3-5 As shown:

[0072] The upper cavity airbag 1 covers the T12 to L2 vertebrae along the length of the human body. It has a convex surface that is high in the middle and low on both sides (i.e., the front and back edges) for guiding the upper lumbar spine to maintain a neutral position. The lateral curvature of the upper cavity airbag 1 fits the physiological kyphosis of the thoracolumbar junction.

[0073] The middle cavity airbag 2 covers the L3-L4 vertebral body along the length direction of the human body, and has a convex arc shape with a high middle and low sides (i.e., front and back edges), and the front edge height of the middle cavity airbag 2 is smaller than the back edge.

[0074] The lower cavity airbag 3 covers the L5-S1 vertebral body along the length direction of the human body, and has an inclined structure with a high front edge and a low rear edge. The rear edge of the lower cavity airbag 3 extends with a 15° chamfer.

[0075] As a preferred technical solution, the supporting force of the upper cavity airbag 1 is 15-25 kPa, the supporting force of the middle cavity airbag 2 is 20-30 kPa, and the supporting force of the lower cavity airbag 3 is 18-25 kPa.

[0076] The rest is the same as Example 1.

[0077] This embodiment provides refined support based on the anatomical differences in the physiological curvature of the lumbar spine (such as the thoracolumbar junction, the main supporting area of ​​the lumbar spine, and the lumbar sacral region), which can improve the support capacity of specific areas (such as the L3-L4 strain area).

[0078] Example 3

[0079] A lumbar support pillow, such as Figures 6-7 As shown, a plurality of honeycomb units are provided in the middle cavity airbag 2, each honeycomb unit has a side length of 1.5 cm and a honeycomb wall thickness of 0.3 cm. The thickness direction of the honeycomb unit is perpendicular to the length direction of the human body, and openings for ventilation are provided on the wall of the honeycomb unit.

[0080] The rest is the same as Example 2.

[0081] The honeycomb unit of this embodiment can disperse vertical pressure, provide targeted support for the maximum stress point of the lumbar spine (L3-L4 intervertebral disc), and reduce the intra-discal pressure.

[0082] Example 4

[0083] A lumbar support pillow, such as Figure 8 As shown, the inflation component 4 is a hand-kneaded silicone airbag, the air pressure fine-tuning component 5 is a miniature knob valve, the outlet of the hand-kneaded silicone airbag is connected to a three-way air tube, and the three branches of the three-way air tube are respectively connected to the upper chamber airbag 1, the middle chamber airbag 2 and the lower chamber airbag 3, forming a parallel air path with one pump and three chambers. Each branch is provided with a one-way valve 6 and a miniature knob valve, and the miniature knob valve is located between the one-way valve 6 and the airbag.

[0084] The rest is the same as Example 1.

[0085] Example 5

[0086] A lumbar support pillow, such as Figure 9 As shown, the upper cavity airbag 1, the middle cavity airbag 2 and the lower cavity airbag 3 are all arranged on the same support pad 7, and the two sides of the support pad 7 are connected with straps 8 for fixing the support pad 7 to the mattress of the bed, and the straps 8 are provided with Velcro.

[0087] As a preferred technical solution, the bottom of the support pad 7 is provided with Figure 10 The anti-slip structure shown improves its stability on the hospital bed mattress.

[0088] The rest is the same as Example 1.

[0089] Example 6

[0090] A manually restartable partitioned lumbar support pillow for postoperative braking uses a "three-chamber independent airbag" design, including an upper chamber airbag 1, a middle chamber airbag 2, and a lower chamber airbag 3 corresponding to different functional areas of the lumbar spine, among which the upper chamber airbag 1 corresponds to T12-L2, the middle chamber airbag 2 corresponds to L3-L4, and the lower chamber airbag 3 corresponds to L5-S1.

[0091] This embodiment adopts anatomical segmental support. The upper cavity airbag 1 can strengthen the support at the thoracolumbar junction and stabilize the upper lumbar spine. The middle cavity airbag 2 is mainly aimed at the L3-L4 area of ​​the lumbar spine which is most susceptible to strain. As the main support area, the lower cavity airbag 3 can relieve the pressure on the lumbar sacral region and coccyx. It is suitable for long-term sitting / lying scenes and is more targeted for patients with lower limb immobilization after vascular surgery (pressure concentration on L3-L4 caused by long-term lying flat).

[0092] This embodiment of the lumbar support pillow also includes a main inflation assembly 4 and a pressure adjustment assembly 5. The main inflation assembly 4 is a hand-pinch silicone airbag, connected to the upper airbag 1, middle airbag 2, and lower airbag 3 via an air tube. This rapidly inflates the three chambers with a base pressure, shortening the initial support buildup time. The pressure adjustment assembly 5 is a micro-knob valve, with each airbag independently equipped with a micro-knob valve, allowing for independent inflation and deflation, achieving ±10% pressure adjustment.

[0093] The airbag inflation method in this embodiment adopts the main pump for rapid inflation + independent fine-tuning of the partitions. The independent partitions support "independent calibration of single-cavity pressure". For example, slender patients can strengthen the support of the middle cavity (inflation volume increased by 20%), and obese patients can focus on the lower cavity (inflation volume increased by 30%), and it is suitable for scenarios without power supply.

[0094] As a preferred technical solution, Velcro straps 8 can be extended on both sides of the lumbar support pillow of this embodiment and directly fixed to the standard hospital bed mattress without relying on the guardrail structure. It is compatible with multiple scenarios such as operating room transfer beds and ordinary ward beds.

[0095] Example 7

[0096] A manually restartable zoned lumbar support pillow for postoperative immobilization. The upper airbag 1, middle airbag 2, and lower airbag 3 are not regular rectangular shapes. Instead, they are designed as special-shaped curved structures based on the anatomical morphology and functional requirements of the corresponding lumbar segments. The details are as follows:

[0097] The upper chamber airbag 1 is an arc-shaped airbag (similar to a saddle), with its transverse curvature conforming to the physiological kyphosis of the thoracolumbar junction. Its longitudinal length covers vertebrae from T12 to L2. It is slightly thinner at the edges (2cm thick) and slightly thicker in the middle (3cm), creating a convex surface with a "high center and low sides" shape, guiding the upper lumbar spine to maintain a neutral position. The design of the upper chamber airbag 1 strengthens the stability of the thoracolumbar junction and prevents excessive kyphosis or lateral flexion of the upper lumbar spine caused by prolonged supine recumbency, making it particularly suitable for patients undergoing spinal surgery.

[0098] The central airbag 2 is a honeycomb-shaped airbag with an overall convex arc shape (simulating the lumbar lordosis). Its interior is composed of multiple honeycomb cells (1.5 cm side length) with a 0.3 cm thick honeycomb wall. The central airbag 2 is slightly narrower at the upper edge (8 cm wide) and slightly wider at the lower edge (10 cm), conforming to the anatomy of the anterior edge of the L3-L4 vertebra. This honeycomb structure disperses vertical pressure, providing targeted support at the maximum stress point in the lumbar spine (the L3-L4 intervertebral disc), reducing intradiscal pressure.

[0099] The lower chamber airbag 3 is a trapezoidal airbag with an upper base width of 10 cm (corresponding to the L5 vertebra), a lower base width of 12 cm (corresponding to the S1 vertebra), and a height of 4-5 cm. The back side (closer to the mattress side) is slightly thicker (5 cm), and the front side (closer to the patient's abdomen side) is slightly thinner (3 cm), forming an inclined surface with a higher back and a lower front. The lower edge extends with a 15° chamfer to avoid compressing the sacroiliac joint. The trapezoidal structure fits the transition from lumbar lordosis to sacral kyphosis, dispersing the pressure on the L5-S1 intervertebral disc and sacroiliac joint, and is especially suitable for patients who sit for a long time (such as patients who need to be in a semi-recumbent position after surgery).

[0100] Moreover, in this embodiment, there is only one main inflation assembly 4, which is connected to the upper chamber airbag 1, the middle chamber airbag 2, and the lower chamber airbag 3 through three ventilation tubes to achieve synchronous and rapid inflation of the three chambers, as follows:

[0101] 1. Three-way diversion structure

[0102] The outlet of the main inflation component 4 (hand-pinch silicone airbag) is connected to the Y-shaped three-way air tube, and the three branches are respectively connected to the upper cavity airbag 1, the middle cavity airbag 2, and the lower cavity airbag 3, forming a parallel air path of "one pump and three chambers".

[0103] 2. One-way valve anti-backflow design

[0104] A silicone one-way valve 6 is provided in each branch trachea. When inflating, the gas flows to the air bag. When the pump body is released and reset, the air bag gas is prevented from flowing back, thereby ensuring that the basic air pressure is quickly established.

[0105] 3. Partition-independent fine-tuning

[0106] (1) After the basic inflation is completed, the air is replenished or deflated through the independent micro knob valves of each chamber (located on the side of the airbag):

[0107] (2) When replenishing air, the hand-kneaded silicone airbag can be used to re-inflate any cavity separately (the valves of other cavities need to be closed);

[0108] (3) When deflation, the rotary valve directly discharges the gas in the cavity.

[0109] As a preferred technical solution, this embodiment can be designed to prevent misoperation, and the three-way air tubes are color-coded: upper cavity (blue), middle cavity (red), and lower cavity (green), corresponding to the same color markings on the airbag regulating valves to prevent caregivers from filling the wrong air cavity.

[0110] The rest is the same as Example 6.

[0111] Example 8

[0112] A manually restartable partitioned lumbar support pillow for postoperative braking. In this embodiment, a sacral coccyx decompression chamber is added, that is, a four-chamber independent inflation system is adopted.

[0113] Building on the three chambers of Example 7 (i.e., upper chamber airbag 1, middle chamber airbag 2, and lower chamber airbag 3), a new sacrococcygeal decompression chamber is added, corresponding to the S1-S5 regions, forming a four-chamber independent structure. The sacrococcygeal decompression chamber utilizes a honeycomb airbag grid, which, when inflated, forms an "elastic suspended support" to prevent direct pressure on the coccyx. This design actively unloads force through independent airbags and is suitable for patients who require absolute supine recumbency after vascular surgery and are prone to pressure sores in the sacrococcygeal region. According to the "Vascular Surgery Nursing Guidelines," the incidence of sacrococcygeal pressure sores in patients undergoing postoperative immobilization is as high as 18%. The honeycomb decompression chamber of this embodiment can alleviate local pressure.

[0114] In this embodiment, the hand-pinchable silicone airbag can complete four-chamber basic inflation within 10 seconds and supports medical oxygen interface inflation in emergency situations.

[0115] As a preferred technical solution, lower limb knee joint fixation belts extend from both sides of the lumbar support pillow. The belts have built-in angle sensors. When the patient's lower limb flexion angle exceeds 15°, the controller automatically alarms (prompting the need to maintain a straight and restrained position). This is suitable for patients who require strict lower limb extension and restraint after abdominal aortic aneurysm surgery or lower limb artery stent implantation, preventing involuntary knee flexion and bleeding.

[0116] As a preferred technical solution, a detachable turning traction rope assembly is added in the middle of the left and right sides of the pillow. The specific structure is as follows:

[0117] (1) Made of medical-grade nylon braided rope (load-bearing capacity ≥ 50 kg), the length of each rope is adjustable (30-60 cm), and the end is equipped with a metal hook and loop (adaptable to the standard bed rail spacing);

[0118] (2) The rope body and the pillow are connected by a magnetic quick-release interface, which can be quickly assembled and disassembled (the surface is flat after disassembly and does not affect the comfort of lying in bed).

[0119] This detachable turning traction rope assembly has the following clinical functions:

[0120] (1) Turning over assistance: Nurses can use the hook and loop traction rope to assist the patient in turning over to the left or right, while keeping the pillow in close contact with the lumbar spine, avoiding the problem of the pillow shifting and needing to be readjusted during traditional turning;

[0121] (2) Position fixation: After turning the patient into position, the traction rope can be hooked to the opposite bed rail to form a "diagonal traction" to temporarily fix the patient's position (such as 30° support in the side-lying position) and reduce the burden of nursing.

[0122] This detachable turning traction rope assembly can provide dynamic assistance. The traction rope can be hooked on the bed rail to help turn the patient over, reducing lumbar strain on caregivers and improving operational safety.

[0123] The detachable design of this detachable turning traction rope assembly has the following advantages:

[0124] (1) Scenario compatibility: The traction rope can be completely removed when turning over is not required, avoiding the risk of rope entanglement, and is suitable for conventional bed rest braking scenarios;

[0125] (2) Easy to clean: The detachable rope body supports separate disinfection (such as soaking in chlorine-containing disinfectant), which meets the requirements of hospital infection control.

[0126] This detachable turning traction rope assembly can be used in the following clinical application scenarios:

[0127] (1) After vascular surgery: When patients with abdominal aortic aneurysm need to stay in bed but turn over regularly, the traction rope can help maintain the position of the lumbar support pillow to avoid airbag displacement or pressure imbalance caused by traditional turning over;

[0128] (2) Nursing of elderly patients: Cooperating with the angle sensor of the restraint belt (the original lower limb linkage fixation system), the system can be integrated with “turning over assistance + body position monitoring” to reduce the risk of falling out of bed.

[0129] The above description of the embodiments is intended to facilitate understanding and use of the invention by those skilled in the art. It will be apparent that those skilled in the art can readily make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the present invention is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention, without departing from the scope of the present invention, should be within the scope of protection of the present invention.

Claims

1. A lumbar support pillow, characterized in that: It comprises an upper airbag (1) for supporting the thoracolumbar junction, a middle airbag (2) for supporting the lumbar region, and a lower airbag (3) for supporting the lumbar-sacral junction. The upper airbag (1), the middle airbag (2), and the lower airbag (3) are arranged in sequence and are all connected to the same main inflation component (4) through an air tube, and the upper airbag (1), the middle airbag (2), and the lower airbag (3) are all respectively connected to an air pressure fine-tuning component (5).

2. The lumbar support pillow according to claim 1, characterized in that: The upper cavity airbag (1) is used to support the T12-L2 thoracolumbar junction area, the middle cavity airbag (2) is used to support the L3-L4 lumbar region, and the lower cavity airbag (3) is used to support the L5-S1 lumbar-sacral junction area; The upper cavity airbag (1), the middle cavity airbag (2) and the lower cavity airbag (3) are independently arranged in sequence, and adjacent sides are not connected to each other.

3. The lumbar support pillow according to claim 1, wherein: The upper cavity airbag (1) covers the vertebrae from T12 to L2 along the length direction of the human body, and the transverse curvature of the upper cavity airbag (1) fits the physiological kyphosis of the thoracolumbar junction area; The upper cavity airbag (1) has a convex surface along the length direction of the human body, which is high in the middle and low on both sides and is used to guide the upper lumbar spine to maintain a neutral position.

4. The lumbar support pillow according to claim 1, wherein: The middle cavity airbag (2) covers the L3-L4 vertebral body along the length direction of the human body and has a convex arc shape with a high middle and low sides. The front edge height of the middle cavity airbag (2) is smaller than the rear edge.

5. The lumbar support pillow according to claim 1, wherein: The middle cavity airbag (2) is provided with a plurality of honeycomb units, each honeycomb unit has a side length of 1.4 to 1.6 cm and a honeycomb wall thickness of 0.25 to 0.35 cm; The thickness direction of the honeycomb unit is perpendicular to the length direction of the human body.

6. The lumbar support pillow according to claim 1, wherein: The lower cavity airbag (3) covers the L5-S1 vertebral body along the length direction of the human body and has an inclined structure with a high front edge and a low rear edge; The rear edge of the lower chamber airbag (3) extends out with a chamfer angle of 14 to 16 degrees.

7. The lumbar support pillow according to claim 1, wherein: The inflation component (4) includes a hand-kneaded silicone airbag, the outlet of which is connected to a three-way air pipe, and the three branches of the three-way air pipe are respectively connected to the upper cavity airbag (1), the middle cavity airbag (2) and the lower cavity airbag (3), forming a parallel air path with one pump and three cavities; Each of the three branches is provided with a one-way valve (6) for preventing the gas in the airbag from flowing back; The air pressure fine-tuning component (5) comprises a micro knob valve, which is arranged on a three-way branch and is located between the one-way valve (6) and the air bag.

8. The lumbar support pillow according to claim 1, wherein: The upper cavity airbag (1), the middle cavity airbag (2) and the lower cavity airbag (3) are all arranged on the same support pad (7), and straps (8) for fixing the support pad (7) to the mattress of the hospital bed are connected to both sides of the support pad (7), and Velcro is provided on the straps (8).

9. The lumbar support pillow according to claim 1, wherein: The lumbar support pillow comprises an upper cavity airbag (1), a middle cavity airbag (2), a lower cavity airbag (3) and a sacrum and coccyx decompression airbag which are arranged in sequence; The sacral coccyx decompression airbag adopts a honeycomb airbag grid, which forms an elastic suspended support after being inflated.

10. The lumbar support pillow according to claim 1, wherein: An annular restraint belt for fixing the knee joint of the lower limbs is extended from both sides of the lower chamber airbag (3), and the restraint belt has an internal angle sensor, and the angle sensor signal is connected to an alarm; And / or, turning-over traction rope assemblies are detachably mounted on both sides of the middle cavity airbag (2), and the ends of the turning-over traction rope assemblies are provided with hooks and rings for connecting to bed rails.

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