A nursing pillow for lumbar intervertebral disc radiofrequency ablation

Abstract

The utility model discloses a lumbar intervertebral disc radiofrequency ablation nursing pillow relates to medical auxiliary equipment technical field, including bottom plate, the surface fixed connection of bottom plate has the flexible cover, the inside of flexible cover has first air bag, second air bag and third air bag in proper order, the inside bottom of flexible cover is fixedly connected with electric air pump, and the air inlet of electric air pump is continuously had the air inlet tube, and the end of air inlet tube projected bottom plate, and the air outlet of electric air pump is respectively communicated three gas pipes, and the end of gas pipe is linked with first air bag, second air bag and third air bag respectively. The utility model discloses through the layered arrangement of multiple air bags, combines the accurate inflation of electric air pump, forms the adjustable support structure, compared with the rigid pillow or single air bag scheme, has improved the fit and comfort of abdomen significantly, can select the inflation specific air bag according to the patient's body type, adjusts the shape and support degree of nursing pillow flexibly, avoids the problem of excessive compression or insufficient support due to the size does not agree.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary equipment technology, specifically a nursing pillow for lumbar disc radiofrequency ablation. Background Technology

[0002] Radiofrequency ablation for lumbar disc herniation, as an effective minimally invasive treatment, has specific requirements for patient positioning and fixation during the procedure. Since the surgery is usually performed in a prone position, the patient's abdomen needs to withstand gravitational pressure for a certain period to ensure full exposure of the lumbar disc, facilitating accurate puncture and shortening the puncture time. However, current nursing protocols have the following technical problems:

[0003] When ordinary sponge pillows or sandbags are placed under the abdomen in clinical practice, they are insufficient to effectively resist local collapse caused by the patient's own weight. This can easily cause the puncture target to deviate from the ideal plane, affecting the accuracy of the puncture. While overly soft materials can provide some cushioning, they lack sufficient mechanical support, which may lead to changes in the physiological curvature of the lumbar spine, thereby affecting the judgment of the puncture angle and depth, prolonging the puncture time, and increasing surgical risks. Moreover, the body curves of patients with different body types vary greatly, making it difficult for existing materials to perfectly fit, resulting in unstable support effects.

[0004] In addition, current nursing pillows lack a real-time pressure distribution feedback mechanism. This lag in manual intervention often fails to meet the dynamic needs for support conditions during surgery in a timely and accurate manner, making it difficult to maintain an ideal puncture environment and hindering the efficiency and safety of the surgery.

[0005] Therefore, it is necessary to propose a nursing pillow for lumbar disc radiofrequency ablation to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] The purpose of this invention is to provide a nursing pillow for lumbar disc radiofrequency ablation, in order to solve the problems mentioned in the background art of existing nursing pillows, which are either too soft and prone to collapse with insufficient support, or too hard and cause breathing restrictions.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a nursing pillow for lumbar disc radiofrequency ablation, comprising a base plate, a flexible cover fixedly connected to the surface of the base plate, a first airbag, a second airbag, and a third airbag arranged sequentially on the inner side of the flexible cover, an electric air pump fixedly connected to the bottom of the inner side of the flexible cover, an air inlet of the electric air pump connected to an air inlet pipe, the end of the air inlet pipe extending out of the base plate, and the air outlet of the electric air pump connected to three air delivery pipes, the ends of the air delivery pipes being connected to the first airbag, the second airbag, and the third airbag respectively.

[0010] Preferably, a first solenoid valve, a second solenoid valve, and a third solenoid valve are respectively installed in the middle of the three air supply pipes. The first airbag, the second airbag, and the third airbag are respectively connected to a first air pressure sensor, a second air pressure sensor, and a third air pressure sensor through pipelines. A central processing unit is installed inside the base plate.

[0011] Preferably, the output terminals of the first, second, and third pressure sensors are electrically connected to the input terminal of the central processing unit, and the output terminal of the central processing unit is electrically connected to the input terminals of the electric air pump, the first solenoid valve, the second solenoid valve, and the third solenoid valve.

[0012] Preferably, a battery is also installed inside the base plate, and a charging port and a switching unit are provided on one side of the base plate; the battery is used to power the central processing unit, the electric air pump, and multiple solenoid valves and air pressure sensors.

[0013] Preferably, both ends of the base plate are provided with sliding grooves, a sliding plate is slidably connected inside the sliding groove, the end of the sliding plate extends out of the sliding groove and is fixedly connected to a mounting base, the top of the mounting base is provided with a baffle, and a limit plate is fixedly connected to the outer side of the top of the mounting base.

[0014] Preferably, the outer side of the slide is threaded with a fastening bolt, which corresponds to the slide plate.

[0015] Preferably, the top of the mounting base is rotatably connected to a baffle via a rotating shaft.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a nursing pillow for lumbar disc radiofrequency ablation, which has the following beneficial effects:

[0018] 1. This nursing pillow for lumbar disc radiofrequency ablation uses a layered arrangement of multiple airbags, combined with precise inflation by an electric air pump, to form an adjustable support structure. Compared to traditional hard pillows or single airbag solutions, it significantly improves the fit and comfort of the abdomen. Specific airbags can be selectively inflated according to the patient's body shape, flexibly adjusting the shape and support of the nursing pillow to avoid excessive pressure or insufficient support due to size mismatch. The soft airbags effectively disperse pressure while avoiding local ischemia or pain caused by traditional hard materials.

[0019] 2. This nursing pillow for lumbar disc radiofrequency ablation uses three independent air pressure sensors to detect the pressure status of each air bladder and feeds the data back to the central processor. When the pressure exceeds the safety threshold, the central processor automatically triggers the corresponding solenoid valve to release air and reduce pressure, achieving dynamic pressure balance. Based on the preset air pressure threshold, the system can intelligently determine whether to continue inflating, avoiding over-inflation that could cause patient discomfort or tissue damage. Compared to the traditional manual adjustment method, automated pressure management significantly reduces the workload of medical staff and improves patient safety.

[0020] 3. This nursing pillow for lumbar disc radiofrequency ablation uses a sliding groove, sliding plate, and rotatable baffle for fixation with a limiting plate. The restraint range can be flexibly adjusted according to the patient's lumbar circumference, effectively limiting unconscious body sliding during the operation and ensuring that the lesion area is always in the optimal surgical plane. The baffle can be rotated and folded inward for easy and quick storage after the operation, saving space. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the nursing pillow for lumbar intervertebral disc radiofrequency ablation of the present invention;

[0022] Figure 2 This is a partial cross-sectional schematic diagram of the nursing pillow for lumbar disc radiofrequency ablation according to this utility model;

[0023] Figure 3 This is a cross-sectional schematic diagram of the base plate and flexible cover structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the central processing unit, pressure sensor, and solenoid valve of this utility model.

[0025] In the diagram: 1. Base plate; 2. Flexible cover; 3. First airbag; 4. Second airbag; 5. Third airbag; 6. Electric air pump; 7. Air inlet pipe; 8. Charging port; 9. Switch unit; 10. Slide rail; 11. Slide plate; 12. Mounting base; 13. Baffle; 14. Limiting plate; 15. Fastening bolt; 16. Central processing unit; 17. First air pressure sensor; 18. Second air pressure sensor; 19. Third air pressure sensor; 20. First solenoid valve; 21. Second solenoid valve; 22. Third solenoid valve; 23. Air supply pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "width", "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Example 1

[0031] Please see Figure 1 and Figure 3A nursing pillow for lumbar disc radiofrequency ablation includes a base plate 1. A flexible cover 2 is fixedly connected to the surface of the base plate 1. A first airbag 3, a second airbag 4, and a third airbag 5 are arranged sequentially on the inner side of the flexible cover 2. An electric air pump 6 is fixedly connected to the bottom of the inner part of the flexible cover 2. The air inlet of the electric air pump 6 is connected to an air inlet pipe 7, the end of which extends out of the base plate 1. The air outlet of the electric air pump 6 is connected to three air delivery pipes 23, the ends of which are connected to the first airbag 3, the second airbag 4, and the third airbag 5, respectively. The flexible cover 2 is a composite TPU flexible cover. The outer layer is a wear-resistant TPU film with a thickness of 0.8 mm and a hardness of 65 Shore A, and the inner lining is a skin-friendly silicone layer of 0.3 mm. Silicone rubber patches are added to the surface stress areas. This design ensures dynamic support while controlling the skin contact pressure within a safe threshold of 15-25 mmHg, and maintains a rebound rate of >95% even after gamma ray sterilization. In actual production, molding parameters need to be optimized through DOE experiments, such as temperature 170℃ and pressure 3MPa, to ensure that the flexible cover does not have wrinkles or collapse during the inflation and deflation of the airbag.

[0032] In this embodiment, by setting the first airbag 3, the second airbag 4, and the third airbag 5 as the support structure of the nursing pillow, the nursing pillow is placed on the patient's abdomen, which not only provides support, but the soft airbags are also more comfortable. Secondly, the multi-airbag structure can select the inflatable airbags according to the patient's body shape, thereby flexibly controlling the shape of the nursing pillow and adapting it to patients of different body shapes. This avoids excessive pressure on the abdomen due to an ill-fitting shape, which solves the problems of existing nursing pillows that are too hard or ill-fitting, causing excessive pressure on the abdomen, causing pain, discomfort, or even difficulty breathing, and those that are too soft, which lose their support function.

[0033] Example 2

[0034] Please see Figure 1 , Figure 3 and Figure 4 This embodiment is a further optimization based on embodiment 1. Specifically, a first solenoid valve 20, a second solenoid valve 21, and a third solenoid valve 22 are respectively installed in the middle part of the three air supply pipes 23. The first airbag 3, the second airbag 4, and the third airbag 5 are respectively connected to the first air pressure sensor 17, the second air pressure sensor 18, and the third air pressure sensor 19 through pipelines. A central processing unit 16 is installed inside the base plate 1. The output terminals of the first air pressure sensor 17, the second air pressure sensor 18, and the third air pressure sensor 19 are electrically connected to the input terminal of the central processing unit 16. The output terminal of the central processing unit 16 is electrically connected to the input terminal of the electric air pump 6, the first solenoid valve 20, the second solenoid valve 21, and the third solenoid valve 22.

[0035] The base plate 1 also houses a battery, and a charging port 8 and a switch unit 9 are located on one side of the base plate 1. The battery powers the central processing unit 16, the electric air pump 6, and multiple solenoid valves and air pressure sensors.

[0036] In this embodiment, by equipping each airbag with a separate pressure sensor and installing a solenoid valve on the airbag's inflation line, the pressure of a single airbag can be detected. When the airbag is under high pressure, the signal is transmitted to the central processing unit 16. The central processing unit 16 controls the solenoid valve in the corresponding airbag line to open the solenoid valve and deflate the airbag, reducing the air volume and preventing the patient from being squeezed. Through the pressure sensor, the central processing unit 16, and the solenoid valve, flexible and adaptive control can be achieved. In addition, when the patient lies on the nursing pillow and inflation is performed, the pressure sensor can transmit the air pressure data of the corresponding airbag to the central processing unit 16. The central processing unit 16 determines whether to close the solenoid valve in the corresponding airbag line to stop inflating the airbag. The determination is based on a pressure threshold, which is determined according to the actual situation.

[0037] Among them, the solenoid valve controls the opening degree (0%~100%) through PWM signal to adjust the inflation / deflation rate, and the electric air pump 6 adopts frequency conversion speed regulation, with a maximum flow rate of 80L / min;

[0038] Triggering conditions: The patient lies prone on the nursing pillow, the electric air pump 6 is activated, the electric air pump 6 starts at full speed, and inflates all the air bags simultaneously. The central processing unit 16 receives the pressure values ​​from each sensor and processes them according to the following rules:

[0039] If the pressure of any airbag is greater than or equal to the preset upper limit (e.g., 30 kPa), the corresponding solenoid valve will close, and the other airbags will continue to inflate until they are balanced.

[0040] When the patient’s unconscious activity causes local pressure fluctuations > ±2 kPa, compensatory inflation is triggered. The pressure balancing strategy uses a PID control algorithm to ensure that the pressure difference between the three airbags is ≤ 1.5 kPa.

[0041] If the pressure of a single airbag exceeds 40 kPa for 3 seconds, immediately shut off the electric air pump 6.

[0042] Example 3

[0043] Please see Figure 1 and Figure 2This embodiment is an optimization based on Example 1 or Example 2. Specifically, both ends of the base plate 1 are provided with sliding grooves 10. A sliding plate 11 is slidably connected inside the sliding groove 10. The end of the sliding plate 11 extends out of the sliding groove 10 and is fixedly connected to a mounting base 12. The top of the mounting base 12 is rotatably connected to a baffle 13 via a rotating shaft. A limit plate 14 is fixedly connected to the outer side of the top of the mounting base 12. A fastening bolt 15 is threadedly connected to the outer side of the sliding groove 10. The fastening bolt 15 corresponds to the sliding plate 11.

[0044] In this embodiment, by setting baffles 13 on both sides of the base plate 1, the patient is restrained, which can prevent the patient's body from sliding and shifting, and ensure that the lesion area is always in the optimal imaging and operation plane. By pulling the mounting base 12, the mounting base 12 drives the sliding plate 11 to slide in the slide groove 10, which can adjust the relative distance of the baffles 13, and thus adjust the width of the baffles 13 to accommodate patients of different body types. After adjusting the position, tighten the fastening bolts 15 to limit the sliding plate 11. By rotating the baffles 13 set on the mounting base 12, and by setting the limiting plate 14 on the outside of the mounting base 12, the baffles 13 can be folded by only allowing them to rotate inward by about 90°, which is convenient for storage.

[0045] In the clinical practice of radiofrequency ablation, patient positioning management is one of the key factors affecting the accuracy and safety of the procedure. Addressing the problems of support failure, pressure injury, and positional drift inherent in traditional abdominal support tools, this product combines a precisely designed mechanical linkage mechanism with an intelligent control unit to achieve multi-dimensional stable constraint of the patient's torso, providing a novel solution for interventional therapy.

[0046] In summary, this invention, through the layered arrangement of the first airbag 3, the second airbag 4, and the third airbag 5, combined with the precise inflation of the electric air pump 6, forms an adjustable support structure. Compared to traditional hard pillows or single airbag solutions, it significantly improves the fit and comfort of the abdomen. Specific airbags can be selectively inflated according to the patient's body shape, flexibly adjusting the shape and support of the nursing pillow to avoid excessive pressure (such as difficulty breathing) or insufficient support (such as slippage) caused by size mismatch. The soft airbags effectively disperse pressure while avoiding local ischemia or pain caused by traditional hard materials. The electric air pump 6 centrally controls the inflation / deflation of the three airbags, simplifying the intraoperative adjustment process and shortening preparation time.

[0047] The system uses three independent pressure sensors to detect the pressure status of each airbag and feeds the data back to the central processing unit 16. When the pressure exceeds the safety threshold, the central processing unit automatically triggers the corresponding solenoid valve to release and reduce pressure, achieving dynamic pressure balance. Based on the preset pressure threshold, the system can intelligently determine whether to continue inflating, avoiding over-inflation that could cause patient discomfort or tissue damage. Compared to the traditional manual adjustment method, automated pressure management significantly reduces the workload of medical staff and improves patient safety. The built-in battery power supply system ensures that the device can continue to operate in environments without external power, enhancing its clinical applicability.

[0048] The restraint range can be flexibly adjusted according to the patient's waist circumference via the sliding groove 10, sliding plate 11, and rotatable baffle 13, in conjunction with the limiting plate 14 for fixation. This effectively limits unconscious body sliding during surgery, ensuring that the lesion area is always in the optimal surgical plane. The baffle 13 can be rotated inward 90° and folded for easy and quick storage after surgery, saving space. After sliding adjustment, the position is fixed by the fastening bolts 15 to ensure the restraint force is durable and stable, while avoiding the risk of accidental loosening.

[0049] This invention employs a multi-balloon structure as the basic support layer, intelligent pressure regulation as the safety layer, and a positional restraint system as the stability enhancement layer, forming a complementary technological closed loop. Through the combination of hardware structural innovation and software algorithms, it achieves a leap from passive adaptation to active protection, significantly reducing intraoperative position-related complications while improving image-guided accuracy and surgical efficiency.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nursing pillow for lumbar disc radiofrequency ablation, comprising a base plate (1), characterized in that: A flexible cover (2) is fixedly connected to the surface of the base plate (1). A first airbag (3), a second airbag (4) and a third airbag (5) are arranged in sequence on the inner side of the flexible cover (2). An electric air pump (6) is fixedly connected to the bottom of the interior of the flexible cover (2). The air inlet of the electric air pump (6) is connected to an air inlet pipe (7). The end of the air inlet pipe (7) extends out of the base plate (1). The air outlet of the electric air pump (6) is connected to three air supply pipes (23). The ends of the air supply pipes (23) are connected to the first airbag (3), the second airbag (4) and the third airbag (5) respectively.

2. The nursing pillow for lumbar disc radiofrequency ablation according to claim 1, characterized in that: The middle sections of the three gas supply pipes (23) are respectively equipped with a first solenoid valve (20), a second solenoid valve (21) and a third solenoid valve (22). The first airbag (3), the second airbag (4) and the third airbag (5) are respectively connected to a first pressure sensor (17), a second pressure sensor (18) and a third pressure sensor (19) through pipelines. The base plate (1) is equipped with a central processing unit (16).

3. The nursing pillow for lumbar disc radiofrequency ablation according to claim 2, characterized in that: The output terminals of the first air pressure sensor (17), the second air pressure sensor (18), and the third air pressure sensor (19) are electrically connected to the input terminal of the central processing unit (16), and the output terminal of the central processing unit (16) is electrically connected to the input terminal of the electric air pump (6), the first solenoid valve (20), the second solenoid valve (21), and the third solenoid valve (22).

4. The nursing pillow for lumbar disc radiofrequency ablation according to claim 3, characterized in that: The base plate (1) is also equipped with a storage battery. A charging port (8) and a switch unit (9) are provided on one side of the base plate (1). The storage battery is used to power the central processing unit (16), the electric air pump (6), and multiple solenoid valves and air pressure sensors.

5. A nursing pillow for lumbar disc radiofrequency ablation according to claim 1, characterized in that: The base plate (1) has grooves (10) at both ends. A slide plate (11) is slidably connected inside the groove (10). The end of the slide plate (11) extends out of the groove (10) and is fixedly connected to a mounting base (12). A baffle (13) is provided at the top of the mounting base (12). A limit plate (14) is fixedly connected to the outer side of the top of the mounting base (12).

6. A nursing pillow for lumbar disc radiofrequency ablation according to claim 5, characterized in that: The outer side of the slide (10) is threaded with a fastening bolt (15), which corresponds to the slide plate (11).

7. A nursing pillow for lumbar disc radiofrequency ablation according to claim 5, characterized in that: The top of the mounting base (12) is rotatably connected to the baffle (13) via a rotating shaft.

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