Anesthesia auxiliary support for anesthesia and use method
By designing a detachable anesthesia support stent, and utilizing a limiting plate, rubber block, and rotating gear system, the positioning problem of existing anesthesia support stents during local anesthesia has been solved, achieving stable patient positioning and position adjustment, and improving the convenience and safety of anesthesia operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF WANNAN MEDICAL COLLEGE (YIJISHAN HOSPITAL OF WANNAN MEDICAL COLLEGE)
- Filing Date
- 2024-02-21
- Publication Date
- 2026-05-12
AI Technical Summary
Existing anesthesia-assisted stents are difficult to effectively position patients during local anesthesia, especially those in the lateral decubitus position. Furthermore, the procedure is complex and requires multiple people to assist, which affects the anesthetic effect and safety.
A detachable anesthesia support frame was designed, which includes a positioning mechanism that contacts the patient through a limiting plate and a rubber block. Combined with a sliding lower fixing plate and a rotating rod gear system, it achieves stable positioning and position adjustment of the patient. An inflatable airbag provides additional support to prevent patient movement.
It achieves stable patient positioning and position adjustment, prevents patient movement due to anesthesia, has a wide range of applications, reduces crush injuries to patients, and improves the convenience and safety of anesthesia procedures.
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Abstract
Description
Technical Field
[0001] This invention relates to the field of medical devices, and more specifically, to an anesthesia-aiding stent for anesthesia and its method of use. Background Technology
[0002] Anesthesia is frequently used during surgery. With the development of medical technology, the diversification and optimization of anesthesia methods, precise control of anesthesia during surgery can effectively reduce the risks during the operation. General anesthesia is often required during surgery. General anesthesia is divided into inhalation anesthesia, total intravenous anesthesia, combined intravenous and inhalation anesthesia, and basic anesthesia. Anesthesia is achieved by inhaling anesthetic drugs through the respiratory tract, or by intravenous or intramuscular injection, which produces inhibition of the central nervous system. The clinical manifestations include loss of consciousness, loss of pain sensation throughout the body, amnesia, inhibition of reflexes, and relaxation of skeletal muscles.
[0003] In current clinical practice, the dosage of the injection needs to be estimated by the physician based on the size of the area to be anesthetized and their experience. Most importantly, it is necessary to estimate in which specific areas the anesthetic will be effective after the injection. This requires a high degree of subjective judgment and is quite difficult for doctors with insufficient spatial imagination or experience.
[0004] Chinese patent CN115137918B discloses an anesthesia-aid stent for cardiovascular surgery. Through a visualization display mechanism of the anesthesia radiation area, the range of the aperture can be changed with the amount of injected drug, thereby assisting medical staff in roughly estimating the amount of drug to be administered.
[0005] Chinese patent CN111265312B discloses an auxiliary support for anesthesia. It effectively maintains the patient's standard position during anesthesia through two handrails, making it difficult for the patient's position to change. The patient holds the handrails and locks the handrails in the popliteal fossa, which can keep the patient in a side-lying position with bent waist and knees, thus avoiding the doctor's anesthesia position shift due to the patient's body movement during anesthesia.
[0006] The first method described above uses a visualization display mechanism for the anesthesia radiation area to change the range of the aperture according to the amount of injected drug, thus controlling the amount of drug administered. The second method uses the patient's hands to hold onto a handrail, which is then secured in the popliteal fossa to position the patient's body. However, in reality, especially during local anesthesia, the patient needs to lie on their side for anesthesia, and it is difficult for anesthesiologists alone to position the patient. Multiple people are needed to position the patient, making the operation quite cumbersome. Summary of the Invention
[0007] To address the problems existing in the prior art, the present invention aims to provide an anesthesia auxiliary support and its usage method. A limiting plate moves a rubber block towards the patient, bringing the rubber block into contact with the patient's left side. The rubber block protects the patient, preventing the limiting plate from directly squeezing the patient and causing injury. The auxiliary support is detachably connected to the operating table, allowing it to move on the table surface and be adjusted according to the patient's desired anesthesia location, thus fixing the anesthesia position and broadening its applicability. Furthermore, the lower fixing plate can slide inside the auxiliary support, adjusting according to the patient's body shape and the desired anesthesia location, further expanding its applicability.
[0008] To solve the above problems, the present invention adopts the following technical solution.
[0009] An anesthesia auxiliary support and its method of use, comprising an auxiliary support, wherein positioning mechanisms are provided at both the front and rear ends of the left side of the auxiliary support;
[0010] The positioning mechanism is used to support the patient, keeping the patient in a lateral decubitus position, which makes it easier for the anesthesiologist to perform anesthesia.
[0011] The positioning mechanism includes an upper movable plate slidably connected inside the auxiliary support. A limit plate is fixedly connected to the right end of the upper movable plate, and a rubber block is fixedly connected to the end of the limit plate away from the lower fixed plate.
[0012] Furthermore, a lower fixed plate is provided below the upper movable plate and is slidably connected to the inside of the auxiliary bracket, and there is a gap between the lower fixed plate and the limiting plate.
[0013] Furthermore, a rotating rod is slidably connected inside the auxiliary support, and a gear is rotatably connected to the front surface of the rotating rod. A receiving groove is opened inside the auxiliary support to accommodate the movement of the gear, and a second tooth groove is opened on the side of the lower fixed plate and the upper moving plate near the gear.
[0014] Furthermore, battery limiting blocks extend from the top and bottom of the front side of the rotating rod, with the end of the limiting block away from the rotating rod extending to the end away from the rotating rod to form a triangular block.
[0015] Furthermore, both the lower fixed plate and the upper movable plate have a first sliding groove inside to accommodate the movement of the limiting block. Both the upper movable plate and the lower fixed plate have a triangular groove on the front side of the first sliding groove inside. Multiple triangular grooves are formed inside the upper movable plate and the lower fixed plate.
[0016] Furthermore, the auxiliary support has an extension groove inside to accommodate the movement of the rotating rod, and the limiting block has a circular hole inside.
[0017] Furthermore, a limiting block is slidably connected to the front side of the auxiliary support, and the right side of the limiting block extends toward the circular hole to form an extension block.
[0018] Furthermore, the upper part of the auxiliary support has a moving groove inside to accommodate the movement of the limiting plate, and the auxiliary support is provided with a limiting mechanism inside, the limiting mechanism including an airbag fixedly connected inside the moving groove.
[0019] Furthermore, the auxiliary support has a guide groove inside that communicates with the airbag, an installation plate is fixedly connected to the middle of the auxiliary support, a hollow rubber is fixedly connected to the bottom of the installation plate, and an air hole communicating with the guide groove is opened on the top of the hollow rubber.
[0020] A method for using an anesthesia-aid stent includes the following steps:
[0021] S1: Fixation: The patient lies on their side on the operating table surface. The auxiliary support is set up on the operating table surface, with the lower part of the auxiliary support at the area where the patient needs anesthesia. Finally, it is fixed with bolts.
[0022] S2: Limiting the first position, by moving the upper moving plate and the lower fixed plate, the rubber block is brought into contact with the back of the patient. Then the limiting block is moved and the rotating rod is moved. The gear is engaged between the second tooth groove in the upper moving plate and the lower fixed plate. The triangular block is engaged in the triangular groove in the upper moving plate and the lower fixed plate. Finally, the limiting block is moved so that the extension block is engaged in the inside of the round hole.
[0023] S3: Limiting the second position, the limiting plate moves and squeezes the airbag. After the airbag is squeezed, it delivers gas into the interior of the hollow rubber. The hollow rubber expands due to the increase in gas, and the expanded hollow rubber limits the top of the patient.
[0024] S4: Removal: By pulling the limiting block, then moving the rotating rod, the upper moving plate and the lower fixed plate are pulled apart. The limiting plate moves away from the patient's side, and the airbag returns to its original position without the compression of the limiting plate. The gas inside the hollow rubber returns to the inside of the airbag. Then the auxiliary support is removed from the surface of the operating table, and the patient leaves the operating table.
[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0026] 1. This solution allows the upper moving plate to move towards the patient, making the movement of the limiting plate more convenient. After moving, the limiting plate abuts against the patient's left side, achieving patient positioning. The limiting plate moves towards the patient along with a rubber block, bringing the rubber block into contact with the patient's left side. The rubber block protects the patient, preventing the limiting plate from directly squeezing the patient and causing injury. The auxiliary support is detachably connected to the operating table, allowing it to move on the operating table surface and be adjusted according to the patient's desired anesthesia location, thus fixing the anesthesia position and broadening its applicability. The lower fixing plate can slide inside the auxiliary support, adjusting according to the patient's body shape and the desired anesthesia location, further expanding its applicability.
[0027] 2. This solution restricts patient movement by using a limiting plate and rubber blocks when the patient's skeletal muscles relax due to anesthesia. When the patient is heavy, their weight compresses the limiting plate, causing it to move slightly along with the upper moving plate. This movement of the upper moving plate rotates a gear, which in turn moves a rotating rod within the auxiliary support. At this point, the second tooth groove on the surface of the lower fixed plate meshes with the gear. The rotation of the gear simultaneously drives the lower fixed plate to move in the opposite direction to the upper moving plate. The lower fixed plate then compresses the limiting plate, thus restricting its movement. The compressive force on the limiting plate is converted into a compressive force from the lower fixed plate, maintaining the limiting plate's current position and preventing patient displacement. This prevents patient displacement from interfering with medical testing or other medical procedures.
[0028] 3. In this design, when the rotating rod moves the limiting block and the triangular block forward, the triangular block moves towards the triangular groove, allowing it to engage with the groove. This fixes the lower fixed plate and the upper moving plate, ensuring the limiting plate remains in contact with the patient's rear side. This further prevents displacement of the limiting plate and the upper moving plate due to patient movement. Multiple triangular grooves are provided inside the upper moving plate and the lower fixed plate, allowing for fixation of the upper moving plate and the lower fixed plate at different movement distances. This design is suitable for patients in different positions and with different weights, making it more widely applicable.
[0029] 4. In this design, once the limiting block extends from the inside of the extension slot with the round hole, the limiting block can be moved to move the extension block towards the limiting block. The extension block can then pass through the round hole, thereby limiting the limiting block and keeping the rotating rod in its current state. This effectively prevents the rotating rod from moving inside the auxiliary bracket, which could cause the gear to disengage from the upper moving plate and the lower fixed plate, making the device more convenient to use.
[0030] 5. This design works by compressing the air inside the airbag and moving it into the guide groove. The air then passes through the guide groove to the air hole and finally enters the hollow rubber. This causes the hollow rubber to expand, providing better support for the patient's head and limiting the patient's position. Furthermore, the material of the hollow rubber will not cause the patient to be squeezed and injured, making the device more convenient to use. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the auxiliary support structure of the present invention;
[0032] Figure 2 This is a side view of the auxiliary support of the present invention;
[0033] Figure 3 This is a bottom view of the auxiliary support of the present invention;
[0034] Figure 4 This is a cross-sectional view of the bracket of the present invention;
[0035] Figure 5 This is a schematic diagram of the positioning mechanism of the present invention;
[0036] Figure 6 This is a side view of the positioning mechanism of the present invention;
[0037] Figure 7 This is a side sectional view of the positioning mechanism of the present invention;
[0038] Figure 8 This is a schematic diagram of the structure of the lower fixing plate of the present invention.
[0039] Explanation of the labels in the diagram:
[0040] 1. Auxiliary bracket; 11. Mounting plate; 12. Moving groove; 13. Guide groove; 14. Extending groove; 15. Receiving groove; 2. Positioning mechanism; 21. Upper moving plate; 22. Lower fixed plate; 221. Second toothed groove; 222. First sliding groove; 223. Triangular groove; 23. Limiting plate; 231. Rubber block; 24. Limiting block; 241. Extension block; 25. Rotating rod; 251. Gear; 252. Limiting block; 253. Triangular block; 254. Round hole; 3. Limiting mechanism; 31. Hollow rubber; 311. Air hole; 32. Airbag. Detailed Implementation
[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0042] Please see Figures 1 to 3 An anesthesia support frame includes an auxiliary frame 1. Positioning mechanisms 2 are provided at both the front and rear ends of the left side of the auxiliary frame 1. The positioning mechanisms 2 support the patient, ensuring the patient remains in a lateral decubitus position for easier anesthesia administration. The positioning mechanism 2 includes an upper movable plate 21 slidably connected inside the auxiliary frame 1. With the patient lying on their side on the operating table, the device is mounted on the operating table surface, fixing the bottom of the auxiliary frame 1 to the operating table. The patient is positioned on the right side of the auxiliary frame 1 in a lateral decubitus position. The upper movable plate 21 slides within the auxiliary frame 1. A limiting plate 23 is fixedly connected to the right end of the upper movable plate 21. Moving the upper movable plate 21 moves the limiting plate 23 towards the patient, facilitating the movement of the limiting plate 23. The limiting plate 23 moves and presses against the patient's left side to position the patient. A rubber block 231 is fixedly connected to the end of the limiting plate 23 away from the lower fixing plate 22. The limiting plate 23 moves the rubber block 231 towards the patient, so that the rubber block 231 contacts the patient's left side. The rubber block 231 protects the patient and prevents the limiting plate 23 from directly squeezing the patient and causing injury. The auxiliary support 1 is detachably connected to the operating table, so that the auxiliary support 1 can move on the surface of the operating table and can be adjusted according to the position of the patient to be anesthetized, thereby fixing the position of the patient to be anesthetized, and has a wider range of applications. The lower fixing plate 22 can slide inside the auxiliary support 1 and can be adjusted according to the patient's body shape and the position of the patient to be anesthetized, and has a wider range of applications.
[0043] like Figures 3 to 8As shown, a lower fixed plate 22 is slidably connected to the inside of the auxiliary support 1 below the upper movable plate 21. There is a gap between the lower fixed plate 22 and the limiting plate 23. When the upper movable plate 21 moves, the lower fixed plate 22 can be moved so that the lower fixed plate 22 moves the same distance as the upper movable plate 21. A rotating rod 25 is slidably connected inside the auxiliary support 1. By moving the rotating rod 25, the rotating rod 25 moves inside the auxiliary support 1. A gear 251 is rotatably connected to the front surface of the rotating rod 25. By moving the rotating rod 25, the gear 251 can be driven... Gear 251 moves inside the auxiliary support 1. The auxiliary support 1 has a receiving groove 15 inside to accommodate the movement of gear 251, allowing gear 251 to rotate inside the auxiliary support 1 without being restricted by the auxiliary support 1, making the rotation of gear 251 more convenient. The lower fixed plate 22 and the upper moving plate 21 both have a second tooth groove 221 on the side near gear 251. When gear 251 moves inside the receiving groove 15, the teeth on the surface of gear 251 engage with the second tooth groove 221 inside the lower fixed plate 22 and the upper moving plate 21, realizing the lower fixed plate... The fixed plate 22 and the upper movable plate 21 respectively mesh with the gear 251. When the patient moves due to skeletal muscle relaxation caused by anesthesia, the limiting plate 23 and the rubber block 231 restrict the patient's movement. When the patient is heavy, the patient's weight compresses the limiting plate 23, causing the limiting plate 23 to move the upper movable plate 21 slightly. This displacement of the upper movable plate 21 causes the gear 251 to rotate, allowing the gear 251 to move with the rotating rod 25 inside the auxiliary support 1. At this time, the lower fixed plate 22... The second tooth groove 221 of the face meshes with the gear 251. The rotation of the gear 251 simultaneously drives the lower fixed plate 22 to move. The movement direction of the lower fixed plate 22 is opposite to that of the upper moving plate 21. At this time, the lower fixed plate 22 can press the limiting plate 23, thereby restricting the movement of the limiting plate 23. The pressing force on the limiting plate 23 is converted into the pressing force of the lower fixed plate 22 on the limiting plate 23, so that the limiting plate 23 remains in its current state and does not change, so that the patient's body does not move and prevents the patient's movement from affecting medical testing or other medical operations.
[0044] like Figures 2 to 3 and Figures 6 to 8As shown, battery limiting blocks 252 extend from the top and bottom of the front side of the rotating rod 25. The movement of the limiting blocks 252 within the auxiliary bracket 1 makes the movement of the rotating rod 25 more stable. A triangular block 253 extends from one end of the limiting block 252 away from the rotating rod 25, allowing the triangular block 253 to move easily by moving the rotating rod 25. Both the lower fixed plate 22 and the upper moving plate 21 have first sliding grooves 222 to accommodate the movement of the limiting blocks 252. During the movement of the upper moving plate 21 and the lower fixed plate 22, the limiting blocks 252 remain within the first sliding grooves 222, moving relative to each other. The restriction of the first sliding grooves 222 by the limiting blocks 252 makes the movement of the upper moving plate 21 and the lower fixed plate 22 more stable. Both the upper moving plate 21 and the lower fixed plate 22 have triangular grooves 223 on their front sides. When the rotating rod 25 moves forward with the limiting block 252 and the triangular block 253, the triangular block 253 can move towards the triangular groove 223, so that the triangular block 253 is locked into the interior of the triangular groove 223. This fixes the lower fixed plate 22 and the upper moving plate 21, so that the limiting plate 23 is always in contact with the back of the patient. This further prevents the limiting plate 23 from moving and causing the upper moving plate 21 to shift due to the patient's movement. Multiple triangular grooves 223 are provided inside the upper moving plate 21 and the lower fixed plate 22, which can fix the upper moving plate 21 and the lower fixed plate 22 after moving different distances. It can fix patients with different positions and weights, making it more widely applicable.
[0045] like Figures 5 to 7As shown, the auxiliary support 1 has an extension groove 14 inside to accommodate the movement of the rotating rod 25. The rotating rod 25 moves the limiting block 252 inside the extension groove 14, causing the limiting block 252 to extend out of the groove 14. The limiting block 252 has a circular hole 254 inside. During the movement of the limiting block 252, it extends out of the groove 14 with the circular hole 254, thus exposing the limiting block 252 and the circular hole 254 to the outside of the auxiliary support 1. A limiting block 24 is slidably connected to the front of the auxiliary support 1. By moving the limiting block 24, it slides on the surface of the auxiliary support 1, facilitating the extension of the limiting block 252. The limiting block 252 extends out of the slot 14 from one side, making it easier for the limiting block 252 to extend out of the inside of the slot 14. The right side of the limiting block 24 extends towards the circular hole 254 to form an extension block 241. After the limiting block 252 extends out of the inside of the slot 14 with the circular hole 254, the limiting block 24 can be moved so that the limiting block 24, along with the extension block 241, moves towards the limiting block 252. The extension block 241 can then pass through the circular hole 254, thereby limiting the limiting block 252 and keeping the rotating rod 25 in its current state. This effectively prevents the rotating rod 25 from moving inside the auxiliary bracket 1, which would cause the gear 251 to disengage from the upper moving plate 21 and the lower fixed plate 22, making the device more convenient to use.
[0046] like Figures 1 to 4 As shown, the upper part of the auxiliary support 1 has a moving groove 12 inside to accommodate the movement of the limiting plate 23. The movement of the limiting plate 23 within the moving groove 12 makes its movement more stable. The auxiliary support 1 has a limiting mechanism 3 inside, which includes an airbag 32 fixedly connected inside the moving groove 12. As the limiting plate 23 moves within the moving groove 12, it compresses the airbag 32, causing it to deform and releasing the gas inside. The auxiliary support 1 also has a guide groove 13 inside that communicates with the airbag 32, and the air outlet of the airbag 32 is connected to the guide groove 13. The air inside the airbag 32 is compressed and moves into the guide groove 13. The middle of the auxiliary bracket 1 is fixedly connected to the mounting plate 11, and the bottom of the mounting plate 11 is fixedly connected to the hollow rubber 31. The top of the hollow rubber 31 has an air hole 311 that communicates with the guide groove 13. The gas reaches the position of the air hole 311 through the guide groove 13 and finally enters the interior of the hollow rubber 31, so that the hollow rubber 31 expands due to the entry of gas. The expansion of the hollow rubber 31 can support the top of the patient and has a better limiting effect on the patient. Moreover, the material of the hollow rubber 31 will not cause the patient to be squeezed and injured, making the device more convenient to use.
[0047] A method for using an anesthesia-aid stent includes the following steps:
[0048] S1: Fixation: The patient lies on their side on the operating table surface. The auxiliary support 1 is set up on the operating table surface, with the lower part of the auxiliary support 1 located at the area where the patient needs anesthesia. Finally, it is fixed with bolts.
[0049] S2: Limiting the first position, by moving the upper moving plate 21 and the lower fixed plate 22, the rubber block 231 contacts the back of the patient, then the limiting block 24 and the rotating rod 25 are moved, the gear 251 is engaged between the second tooth groove 221 in the upper moving plate 21 and the lower fixed plate 22, the triangular block 253 is engaged in the triangular groove 223 in the upper moving plate 21 and the lower fixed plate 22, and finally the limiting block 24 is moved so that the extension block 241 is engaged in the round hole 254;
[0050] S3: Limiting the second position, the limiting plate 23 moves and squeezes the airbag 32. After being squeezed, the airbag 32 delivers gas to the interior of the hollow rubber 31. The hollow rubber 31 expands due to the increase in gas, and the expanded hollow rubber 31 limits the top of the patient.
[0051] S4: Remove by pulling the limiting block 24, then moving the rotating rod 25, pulling the upper moving plate 21 and the lower fixed plate 22, the limiting plate 23 moves away from the patient's side, the airbag 32 returns to its original position without the compression of the limiting plate 23, the gas inside the hollow rubber 31 returns to the inside of the airbag 32, then the auxiliary support 1 is removed from the operating table surface, and the patient leaves the operating table.
[0052] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.
Claims
1. An anesthesia auxiliary stent for anesthesia, comprising an auxiliary stent (1), characterized in that: The auxiliary support (1) is equipped with positioning mechanisms (2) at both the front and rear ends on the left side; The positioning mechanism (2) is used to support the patient so that the patient is always in a lateral decubitus position, which makes it convenient for the anesthesiologist to perform anesthesia. The positioning mechanism (2) includes an upper movable plate (21) that is slidably connected inside the auxiliary bracket (1). A limiting plate (23) is fixedly connected to the right end of the upper movable plate (21). A rubber block (231) is fixedly connected to the end of the limiting plate (23) away from the lower fixed plate (22).
2. The anesthesia auxiliary stent for anesthesia according to claim 1, characterized in that: Below the upper movable plate (21), there is a lower fixed plate (22) that is slidably connected to the inside of the auxiliary bracket (1), and there is a gap between the lower fixed plate (22) and the limiting plate (23).
3. The anesthesia auxiliary stent for anesthesia according to claim 2, characterized in that: The auxiliary support (1) is slidably connected to a rotating rod (25), and a gear (251) is rotatably connected to the front surface of the rotating rod (25). The auxiliary support (1) is provided with a receiving groove (15) to accommodate the movement of the gear (251). The lower fixed plate (22) and the upper moving plate (21) are both provided with a second tooth groove (221) on the side near the gear (251).
4. The anesthesia auxiliary stent for anesthesia according to claim 3, characterized in that: Battery limiting blocks (252) extend from the top and bottom of the front side of the rotating rod (25), and the end of the limiting block (252) away from the rotating rod (25) extends to the end away from the rotating rod (25) to form a triangular block (253).
5. The anesthesia auxiliary stent for anesthesia according to claim 4, characterized in that: Both the lower fixed plate (22) and the upper movable plate (21) have a first sliding groove (222) inside to accommodate the movement of the limiting block (252). Both the upper movable plate (21) and the lower fixed plate (22) have a triangular groove (223) on the front side of the first sliding groove (222) inside. Multiple triangular grooves (223) are provided inside the upper movable plate (21) and the lower fixed plate (22).
6. The anesthesia auxiliary stent for anesthesia according to claim 5, characterized in that: The auxiliary support (1) has an extension groove (14) inside to accommodate the movement of the rotating rod (25), and the limiting block (252) has a round hole (254) inside.
7. An anesthesia auxiliary stent for anesthesia according to claim 6, characterized in that: The front side of the auxiliary support (1) is slidably connected to a limiting block (24), and the right side of the limiting block (24) extends toward the circular hole (254) to form an extension block (241).
8. An anesthesia auxiliary stent for anesthesia according to claim 7, characterized in that: The upper half of the auxiliary support (1) has a moving groove (12) for accommodating the movement of the limiting plate (23). The auxiliary support (1) is provided with a limiting mechanism (3), which includes an airbag (32) fixedly connected to the moving groove (12).
9. An anesthesia auxiliary stent for anesthesia according to claim 8, characterized in that: The auxiliary support (1) has a guide groove (13) inside that communicates with the airbag (32). The auxiliary support (1) has a mounting plate (11) fixedly connected to the middle part. The bottom of the mounting plate (11) has a hollow rubber (31) fixedly connected to the bottom. The top of the hollow rubber (31) has an air hole (311) that communicates with the guide groove (13).
10. A method of using an anesthesia auxiliary stent as described in any one of claims 1-9, characterized in that: Includes the following steps: S1: Fixation: The patient lies on his side on the surface of the operating table. The auxiliary support (1) is set up on the surface of the operating table. The lower part of the auxiliary support (1) is located at the part of the patient that needs anesthesia. Finally, it is fixed with bolts. S2: Limiting the first position, by moving the upper moving plate (21) and the lower fixed plate (22), the rubber block (231) is brought into contact with the back of the patient. Then the limiting block (24) is moved and the rotating rod (25) is moved. The gear (251) is engaged between the second tooth groove (221) in the upper moving plate (21) and the lower fixed plate (22). The triangular block (253) is engaged in the triangular groove (223) in the upper moving plate (21) and the lower fixed plate (22). Finally, the limiting block (24) is moved so that the extension block (241) is engaged in the round hole (254). S3: Limiting the second position, the limiting plate (23) moves and squeezes the airbag (32). After the airbag (32) is squeezed, it delivers gas to the interior of the hollow rubber (31). The hollow rubber (31) expands due to the increase of gas. The expanded hollow rubber (31) limits the top of the patient. S4: Remove by pulling the limiting block (24), then move the rotating rod (25), pull the upper moving plate (21) and the lower fixed plate (22), the limiting plate (23) moves away from the patient's side, the airbag (32) returns to its original position without the compression of the limiting plate (23), the gas inside the hollow rubber (31) returns to the inside of the airbag (32), then remove the auxiliary support (1) from the operating table surface, and the patient leaves the operating table.