Air storage type multifunctional combined back cushion in thyroid surgery

By using a modular design and air pressure control in a gas-storage multifunctional combination thyroid surgery support cushion, the problem of poor adjustment precision of traditional support cushions is solved, achieving individualized neck support and pressure distribution, and improving the safety and comfort of surgical procedures.

CN121489757APending Publication Date: 2026-02-10SHANGHAI JINGAN DISTRICT CENT HOSPITAL
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Patent Information

Application Number
CN202512030953.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

Traditional thyroid surgery cushions have poor adjustment precision and cannot achieve individualized fit, which increases the difficulty of the operation and postoperative complications for patients.

Method used

The system employs a multi-functional, gas-storage-type combination thyroid surgery support cushion, which includes a triangular shoulder pad, a gas-storage head and neck sac, a head pillow, and an adjustable-height support pillow. The cushion is modularly connected via connectors and utilizes the air pressure control of the gas-storage head and neck sac to achieve automatic shape adaptation and pressure distribution.

Benefits of technology

It enables optimal adjustment of individualized neck extension angle and support surface, ensuring full exposure of the surgical field, reducing iatrogenic damage and patient discomfort, and improving surgical efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the field of back cushions, and particularly discloses a gas storage type multifunctional combined thyroid surgery back cushion which comprises a triangular shoulder cushion, a gas storage type head and neck bag, a headrest, a plurality of supporting pillows stacked up and down and a connecting assembly. The connecting assembly comprises a first connecting piece and a second connecting piece, the air storage type head and neck bag is connected with the upper surface and the front end surface of the triangular shoulder pad through the second connecting piece, the supporting pillows are connected with the bottom of the headrest and the front end surface of the triangular shoulder pad through the second connecting piece, and the adjacent supporting pillows are connected through the first connecting piece. Basic height adjustment is provided through the combined type supporting pillow, automatic form adaptation and pressure distribution are achieved through the air storage type head and neck bag according to the communicating vessel principle after a patient lies down, the most suitable neck stretching angle and supporting curved surface can be customized for each patient, the optimal operation field exposure can be obtained, and the operation difficulty of the patient is lowered. And iatrogenic injury caused by excessive backward extension or improper support can be avoided to the greatest extent.
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Description

Technical Field

[0001] This invention belongs to the field of cushions, specifically relating to a gas-storing, multifunctional combined thyroid surgery cushion. Background Technology

[0002] Thyroid surgery requires the patient to lie supine with neck hyperextension to fully expose the anterior cervical structures, facilitating the surgeon's operation. Currently, in clinical practice, molded pillows made of soft materials such as sponge and memory foam, or traditional soft pillows, are widely used and placed under the patient's shoulders and back to elevate the shoulders and achieve neck extension.

[0003] However, the aforementioned existing technologies have a significant problem: poor adjustment precision, making it impossible to achieve individualized adaptation. Because patients exhibit vast individual differences in spinal curvature, neck length, and shoulder thickness, while traditional pillows have fixed heights and shapes, surgeons often have to compromise between insufficient surgical field exposure and excessive neck extension. Insufficient exposure increases the difficulty and risk of the procedure; while excessive extension is a major factor contributing to postoperative complications such as neck and shoulder pain and headaches. Summary of the Invention

[0004] The purpose of this invention is to provide a gas-storing, multifunctional combined thyroid surgery support cushion to solve the problem of poor adjustment accuracy of traditional support cushions mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multifunctional combined air-storage thyroid surgery support cushion includes: a triangular shoulder pad, an air-storage head and neck sac, a head pillow, several stacked support pillows, and connecting components.

[0007] The connecting assembly includes connector one and connector two, which are used for connecting and separating the modules. The air-storage head and neck bladder is connected to the upper surface and front surface of the triangular shoulder pad through connector two, and the support pillow is connected to the bottom of the head pillow and the front surface of the triangular shoulder pad through connector two. Adjacent support pillows are connected through connector one.

[0008] Preferably, the first connecting member includes a limiting plate disposed on the side of the support pillow. The limiting plate is rotatably connected to the support pillow through a rotating member. A flexible strip is disposed on the adjacent support pillow around the periphery of the limiting plate. The flexible strip is connected to the limiting plate by a snap fastener.

[0009] Preferably, the gas-storage head and neck bag is connected to a balloon via an air tube, the air tube is equipped with a pressure relief valve, and both the inlet and outlet ends of the balloon are equipped with one-way valves.

[0010] Preferably, the interior of the gas-storage head and neck bladder is provided with at least two gas storage chambers through a diaphragm, and the at least two gas storage chambers are respectively connected to the air tube through a branch pipe, and a valve is provided on the branch pipe.

[0011] Preferably, the pressure relief valve includes a valve body disposed on an air pipe, a valve block movably disposed within the valve body, an elastic element disposed between the valve block and the valve body, air ports disposed at both ends of the valve block, an air passage disposed within the valve block between the two air ports, and the front end of the valve block penetrating the valve body.

[0012] Preferably, a stop block is provided at the front end of the valve block on the side of the air port, and a sealing plate is provided at the rear end of the valve block.

[0013] Preferably, the cushion further includes a limb support assembly, which includes a fixing frame. The fixing frame is L-shaped and adapted to the side of the triangular shoulder pad. An arm support is movably mounted on the fixing frame, and an arm support is movably mounted at the front end of the arm support. A telescopic rod is movably mounted between the fixing frame and both the arm support and the arm support. A limit bolt is threaded onto the telescopic rod.

[0014] Preferably, the side of the second arm support is provided with a sliding groove, and the front end of the telescopic rod is provided with a slider, which is slidably connected to the sliding groove.

[0015] The method of using the above-described gas-storage multifunctional combination thyroid surgery support cushion includes:

[0016] S1. Determine the number of support pillows according to the patient's body shape, stack several support pillows one on top of the other to the predetermined height, and then connect the support pillows to the front end of the triangular shoulder pad;

[0017] S2. Place the inflatable head and neck bladder on the triangular shoulder pad, so that the inflatable head and neck bladder is in contact with and fixed to the upper surface and front surface of the triangular shoulder pad at the same time, and perform initial inflation.

[0018] S3. Assist the patient to lie down, so that their neck and shoulders are pressed against the air-filled head and neck bag, and wait for it to automatically complete the shape adaptation and pressure distribution.

[0019] S4. Secure the headrest to the predetermined position above the topmost support pillow to stabilize the patient's head.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention provides basic height adjustment through a combination of a support pillow and a triangular shoulder pad. Combined with an air-filled head and neck sac that automatically adapts to the patient's body shape and distributes pressure after the patient lies down using the principle of communicating vessels, it forms a dual adjustment system. This system can tailor the most suitable neck extension angle and support curve for each patient, achieving optimal surgical field exposure while minimizing iatrogenic damage caused by excessive extension or improper support.

[0022] This invention utilizes the characteristic of gas to evenly distribute pressure in a gas-filled head and neck sac, achieving soft contact and stable support, effectively avoiding the generation of local high pressure points, and significantly reducing the risk of pressure sores caused by prolonged surgery.

[0023] This invention integrates functions such as body positioning support, head stabilization, and upper limb protection into a single system through modular design. This reduces preoperative preparation time, decreases reliance on the personal experience of the person placing the patient, and makes the layout of the surgical area more standardized and efficient, thereby improving the overall work efficiency and safety level of the surgical team. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 This is a schematic diagram showing the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 This is a bottom view of the present invention;

[0028] Figure 4 This is a schematic diagram of the pressure relief valve structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the limb support component structure of the present invention.

[0030] In the diagram: 1. Triangular shoulder pad; 2. Inflatable head and neck bag; 201. Air tube; 202. Balloon; 203. Pressure relief valve; 2031. Valve body; 2032. Valve block; 2033. Elastic component; 2034. Sealing plate; 2035. Air inlet; 2036. Airway; 2037. Stop block; 204. Branch pipe; 205. Valve; 206. One-way valve; 3. Headrest; 4. Backrest; 5. Connecting assembly; 501. Connector one; 5011. Limiting plate; 5012. Buckle; 5013. Rotating component; 5014. Flexible belt; 502. Connector two; 6. Limb support assembly; 601. Fixing frame; 602. Arm support one; 603. Arm support two; 604. Telescopic rod; 605. Limiting bolt; 606. Slide groove; 607. Slider. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] As attached Figure 1 To be continued Figure 5 As shown:

[0035] Example 1: This example provides a gas-storage multifunctional combination thyroid surgery support cushion, including: a triangular shoulder pad 1, a gas-storage head and neck sac 2, a head pillow 3, several stacked support pillows 4, and a connecting component 5;

[0036] The connecting component 5 includes connector 1 501 and connector 2 502, which are used for connecting and separating the modules. The air-filled head and neck bladder 2 is connected to the upper surface and the front surface of the triangular shoulder pad 1 through connector 2 502. The support pillow 4 is connected to the bottom of the head pillow 3 and the front surface of the triangular shoulder pad 1 through connector 2 502. Adjacent support pillows 4 are connected through connector 1 501.

[0037] Specifically, the connector 501 includes a limiting plate 5011 disposed on the side of the support pillow 4. The limiting plate 5011 is rotatably connected to the support pillow 4 through a rotating member 5013. A flexible strip 5014 is disposed on the adjacent support pillow 4 around the limiting plate 5011. The flexible strip 5014 is connected to the limiting plate 5011 through a buckle 5012.

[0038] Among them, the triangular shoulder pad 1, with its wedge-shaped or near-triangular structural design, conforms to ergonomics and can provide a stable initial tilt angle for the patient's shoulder, serving as the basic platform for the entire support system.

[0039] Connector 2 502 (such as Velcro) is used to enable quick connection and separation between the air-filled head and neck bladder 2 and the triangular shoulder pad 1, the support pillow 4 and the triangular shoulder pad 1, and the headrest 3 and the support pillow 4. Connector 1 501 is specifically used to fix adjacent support pillows 4.

[0040] Working principle and effect: By stacking different numbers of support pillows 4, the base height of the entire cushion system can be precisely adjusted like building blocks to accommodate patients with different neck lengths and shoulder thicknesses, laying the foundation for individualized posture management. The specific structure of connector 501 involves rotating the limiting plate 5011 so that its front end screws into the flexible band 5014 of the adjacent support pillow 4, and then connecting it to the flexible band 5014 via buckle 5012. This locking mechanism, using the flexible band 5014 and buckle 5012, ensures that the stacked support pillows 4 will not shift or fall apart when bearing the patient's weight, providing crucial overall stability. Since connector 501 is located on the side of the support pillow 4, it will not affect the user's ability to remove the pillow after use.

[0041] Gas is filled into the gas-filled head and neck bag 2. The hardness of the air bag is controlled by the air pressure and preset according to the patient's body shape. Then the gas-filled head and neck bag 2 is installed on the triangular shoulder pad 1. The gas-filled head and neck bag 2 is in contact with the upper surface and the front surface of the triangular shoulder pad 1 at the same time, and the whole is set in an L-shaped curve.

[0042] During use, the patient lies on the triangular shoulder pad 1, which is positioned below the patient's shoulders. The patient's head is naturally tilted back to the headrest 3, maintaining a supine position and exposing the surgical area. The air-filled head and neck bladder 2 supports the patient's head, neck, and back. Its arc-shaped curve matches the outer arc of the triangular shoulder pad 1. When the patient's weight is applied to the air-filled head and neck bladder 2, areas under high pressure (such as the vertebral protrusions) are compressed, causing a momentary increase in local pressure. This gas is then expelled to areas under less pressure (such as the depressions on either side of the spine). After a brief gas flow, the entire system reaches a new pressure equilibrium. At this point, the air-filled head and neck bladder 2 perfectly conforms to the curve of the patient's back: protruding areas sink into the air bladder, and concave areas are filled and supported by the air bladder. This achieves uniform pressure distribution "point-to-point."

[0043] After the surgery is completed, the staff first stabilizes the patient's body, then pulls the triangular shoulder pad 1 out from under the patient, and then slowly lowers the patient to lie on the bed. Then, keeping the patient's head stable, the staff separates the upper and lower adjacent support pillows 4 through connector 501, and then pulls out the separated support pillows 4. Pulling them out one by one will lower the height of the patient's head until it is restored to normal height.

[0044] For medical staff, the optimal neck extension angle for the patient is obtained, the surgical field is perfectly exposed, and the system can be arranged in advance according to the patient's body shape and neck extension length, shortening the preoperative preparation time; for patients, the pressure on the back is evenly distributed, avoiding local high pressure points, and achieving stable and comfortable support.

[0045] Example 2: This example is basically the same as the previous example, except that a balloon 202 is connected to the gas-storage head and neck bag 2 via an air tube 201, a pressure relief valve 203 is provided on the air tube 201, and a one-way valve 206 is provided at both the air inlet and air outlet of the balloon 202.

[0046] Specifically, the pressure relief valve 203 includes a valve body 2031 disposed on the air pipe 201, a valve block 2032 movably disposed inside the valve body 2031, an elastic element 2033 disposed between the valve block 2032 and the valve body 2031, an air port 2035 disposed at both ends of the valve block 2032, an air passage 2036 disposed inside the valve block 2032 between the two air ports 2035, and the front end of the valve block 2032 penetrates through the valve body 2031.

[0047] Specifically, a stop 2037 is provided at the front end of the valve block 2032 on the side of the air port 2035, and a sealing plate 2034 is provided at the rear end of the valve block 2032.

[0048] The stop block 2037 limits the pressing distance of the valve block 2032 to ensure that the air port 2035 at the front end of the valve block 2032 is always in the outside.

[0049] Specifically: by squeezing the balloon 202, gas enters the gas-storage head and neck bladder 2 through the one-way valve 206, inflating it to obtain a basic support force;

[0050] When the patient lies down, their body weight is applied to the gas-filled head and neck sac 2, increasing the internal pressure. Based on the principle of communicating vessels, the gas is distributed inside the sac and flows from the high-pressure area (bone protrusions) to the low-pressure area (soft tissue depressions), so that the shape of the sac automatically conforms to the physiological curve of the patient's neck and shoulders, achieving "tailor-made" support and uniform pressure distribution;

[0051] The pressure relief valve 203 is the core of the system's safety. When the operator pushes the valve block 2032 to move, it overcomes the resistance of the elastic element 2033 (such as a spring), causing the sealing plate 2034 to leave the valve body 2031. At this time, the gas in the airbag will enter the air passage 2036 through the air port 2035 at the tail end of the valve block 2032, and will be discharged to the outside through the air port 2035 at the front end of the valve block 2032 to relieve pressure.

[0052] When the pressure drops below the safe value, the elastic element 2033 pushes the valve block 2032 to reset, the sealing plate 2034 re-seals, and the pressure relief stops. This process ensures that the pressure inside the bladder is always within a safe and comfortable range, effectively preventing excessive compression.

[0053] By drawing in gas through the balloon 202 to increase air pressure and hardness, and releasing gas through the pressure relief valve 203 to decrease air pressure and hardness, personnel can easily control the hardness of the gas-storage head and neck balloon 2.

[0054] Active adaptive support can perfectly expose the surgical field while minimizing the risk of postoperative pain, nerve compression, and pressure sores caused by concentrated pressure.

[0055] Example 3: This example is basically the same as the previous example, except that the interior of the air-storage head and neck sac 2 is provided with at least two air-storage chambers through a diaphragm. The at least two air-storage chambers are respectively connected to the air pipe 201 through a branch pipe 204, and a valve 205 is provided on the branch pipe 204.

[0056] As can be seen from the above, this embodiment optimizes the internal structure of the air-storage head and neck bladder 2 to achieve precise zoned support.

[0057] Zoned support structure: The interior of the air-filled head and neck sac 2 is provided with at least two independent air-filled chambers through a diaphragm. For example, one air-filled chamber is designed to support the patient's neck and back, while the other is designed to support the head.

[0058] Working principle: By adjusting the valves 205 on each branch pipe 204, the airflow to different air storage chambers can be independently controlled. During initial inflation or automatic adjustment, the valve 205 of a certain chamber can be closed or finely adjusted, thereby achieving independent control of the support stiffness of that area.

[0059] Technical benefits: This design allows medical staff to perform differentiated and precise pressure management on the neck and head based on surgical needs and the patient's specific physiological curvature. For example, the rigidity of the cervical support cavity can be appropriately increased to achieve better exposure, while maintaining the softness of the head cavity to improve comfort, further optimizing individualized adaptation capabilities.

[0060] Example 4: This example is basically the same as the previous example, except that the cushion also includes a limb support component 6. The limb support component 6 includes a fixing frame 601. The fixing frame 601 is L-shaped and adapted to the side of the triangular shoulder pad 1. An arm support 602 is movably mounted on the fixing frame 601. An arm support 603 is movably mounted at the front end of the arm support 602. A telescopic rod 604 is movably mounted between the fixing frame 601 and the arm support 602 and the arm support 603. A limit bolt 605 is threaded on the telescopic rod 604.

[0061] Specifically, the side of the arm support 603 is provided with a sliding groove 606, and the front end of the telescopic rod 604 is provided with a slider 607. The slider 607 is slidably connected to the sliding groove 606, and springs or elastic ropes can be provided between the two ends of the sliding groove 606 and the slider 607.

[0062] As can be seen from the above, this embodiment integrates limb support component 6 to provide comprehensive intraoperative positioning protection.

[0063] Limb support and protection: The limb support component 6 is securely mounted on the side of the triangular shoulder pad 1 via an L-shaped fixing frame 601. Specifically, the inner surface of the L-shaped fixing frame 601 and the side of the triangular shoulder pad 1 are in contact with the ground. After the patient lies on the triangular shoulder pad 1, the patient's weight will be applied to the fixing frame 601 through the triangular shoulder pad 1 to limit the position of the fixing frame 601 and maintain stability.

[0064] Working Principle and Effects: Arm Support 1 (602) and Arm Support 2 (603) can be adjusted in multiple degrees of freedom (including height and angle) via Telescopic Rod 604 and Limiting Bolt 605. This allows medical staff to precisely position the patient's upper limbs in an ergonomic functional position, effectively preventing damage to the brachial plexus nerve due to prolonged excessive traction or compression. The cooperation between Slider 607 and Slide 606 further provides angle adjustment between Arm Support 1 (602) and Arm Support 2 (603), ensuring the stability and flexibility of the support. This module extends position management from the neck and shoulder area to the upper limbs, achieving comprehensive protection for the patient.

[0065] Example 5: This example provides a method for using a gas-storing multifunctional combination thyroid surgery support cushion as described above, including:

[0066] S1. Determine the number of support pillows 4 according to the patient's body shape, stack several support pillows 4 one on top of the other to the predetermined height, and then connect the support pillows 4 to the front end of the triangular shoulder pad 1.

[0067] The number of support pillows (4) is determined based on the patient's body shape (such as neck length and shoulder height) and stacked and fixed to achieve a quick initial height adaptation, reducing reliance on the operator's experience.

[0068] S2. Place the air-filled head and neck bladder 2 on the triangular shoulder pad 1, so that the air-filled head and neck bladder 2 simultaneously contacts and fixes the upper surface and front surface of the triangular shoulder pad 1, and performs initial inflation.

[0069] Securely install the air-filled head and neck bladder 2 onto the triangular shoulder pad 1 and perform initial inflation to prepare for subsequent automatic fine-tuning.

[0070] S3. Assist the patient to lie down, so that their neck and shoulders are pressed against the air-filled head and neck sac 2, and wait for it to automatically complete the shape adaptation and pressure distribution.

[0071] After the patient lies down, the air-filled head and neck sac 2 automatically adapts to the body shape within seconds to one minute, thus forming the optimal individualized position.

[0072] S4. Fix the head pillow 3 at a predetermined position above the topmost support pillow 4 to stabilize the patient's head.

[0073] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A gas-storing, multifunctional combined thyroid surgery support cushion, characterized in that, include: Triangular shoulder pad (1), air-filled head and neck bladder (2), headrest (3), several stacked support pillows (4) and connecting components (5); The connecting component (5) includes connector one (501) and connector two (502) for connecting and separating the modules. The air-filled head and neck bladder (2) is connected to the upper surface and front surface of the triangular shoulder pad (1) through connector two (502). The support pillow (4) is connected to the bottom of the head pillow (3) and the front surface of the triangular shoulder pad (1) through connector two (502). Adjacent support pillows (4) are connected through connector one (501).

2. The gas-storing multifunctional combined thyroid surgery support cushion according to claim 1, characterized in that, The first connector (501) includes a limiting plate (5011) disposed on the side of the support pillow (4). The limiting plate (5011) is rotatably connected to the support pillow (4) through a rotating component (5013). A flexible strip (5014) is disposed on the adjacent support pillow (4) around the limiting plate (5011). The flexible strip (5014) is connected to the limiting plate (5011) through a buckle (5012).

3. The gas-storing multifunctional combined thyroid surgery support cushion according to claim 1, characterized in that, The gas-storage head and neck bag (2) is connected to a balloon (202) via an air tube (201). A pressure relief valve (203) is provided on the air tube (201). A one-way valve (206) is provided at both the air inlet and air outlet of the balloon (202).

4. The gas-storing multifunctional combined thyroid surgery support cushion according to claim 3, characterized in that, The gas-storage head and neck sac (2) has at least two gas storage chambers inside through a diaphragm. The at least two gas storage chambers are connected to the air pipe (201) through a branch pipe (204) and a valve (205) is provided on the branch pipe (204).

5. The gas-storing multifunctional combined thyroid surgery support cushion according to claim 3, characterized in that, The pressure relief valve (203) includes a valve body (2031) disposed on an air pipe (201), a valve block (2032) movably disposed inside the valve body (2031), an elastic element (2033) disposed between the valve block (2032) and the valve body (2031), an air port (2035) disposed at both ends of the valve block (2032), an air passage (2036) disposed inside the valve block (2032) between the two air ports (2035), and the front end of the valve block (2032) penetrating the valve body (2031).

6. The gas-storing multifunctional combined thyroid surgery support cushion according to claim 5, characterized in that, A stop (2037) is provided at the front end of the valve block (2032) on the side of the air port (2035), and a sealing plate (2034) is provided at the rear end of the valve block (2032).

7. The gas-storing multifunctional combined thyroid surgery support cushion according to claim 1, characterized in that, The cushion also includes a limb support assembly (6), which includes a fixing frame (601). The fixing frame (601) is L-shaped and adapted to the side of the triangular shoulder pad (1). An arm support (602) is movably mounted on the fixing frame (601). An arm support (603) is movably mounted at the front end of the arm support (602). A telescopic rod (604) is movably mounted between the fixing frame (601) and the arm support (602) and the arm support (603). A limit bolt (605) is threaded on the telescopic rod (604).

8. The gas-storing multifunctional combined thyroid surgery support cushion according to claim 7, characterized in that, The side of the second arm support (603) is provided with a sliding groove (606), and the front end of the telescopic rod (604) is provided with a slider (607), which is slidably connected to the sliding groove (606).

9. The method of using a gas-storing multifunctional combined thyroid surgery support cushion according to any one of claims 1-8, characterized in that, include: S1. Determine the number of support pillows (4) according to the patient's body shape, stack several support pillows (4) up and down to the predetermined height, and then connect the support pillows (4) to the front end of the triangular shoulder pad (1); S2. Place the air-filled head and neck bladder (2) on the triangular shoulder pad (1) so that the air-filled head and neck bladder (2) simultaneously contacts and fixes the upper surface and front surface of the triangular shoulder pad (1), and performs initial inflation. S3. Assist the patient to lie down so that his / her neck and shoulders are pressed against the air-filled head and neck sac (2), and wait for it to automatically complete the shape adaptation and pressure distribution. S4. Fix the head pillow (3) above the topmost support pillow (4) at a predetermined position to stabilize the patient's head.