Adjusting type ear-nose-throat operation head position limiting device and using method

Abstract

The invention provides an adjustable ear-nose-throat operation head position limiting device and a using method, and relates to the technical field of ear-nose-throat operation assistion.The adjustable ear-nose-throat operation head position limiting device comprises a main body, the main body is of a bed body structure and facilitates supine lying of a user, a pillow is rotationally connected to one side of the main body, and an outer frame used for sleeving the head of a patient is arranged at the top of the pillow; the fixing assembly is arranged in the outer frame and used for assisting in fixing the head of the patient; the rotating assembly is arranged between the main body and the pillow and used for assisting the patient in rotating the head to cooperate with the operation. According to the device, the fixing assembly is matched with the rotating assembly, the head of a patient can be effectively fixed, the situation that the head of a user shakes and loosens is prevented, good reinforcing stability is provided, the diseased part of the patient can be rapidly expanded through the expansion assembly, closing of the diseased part is prevented from being hindered, and the patient can be more conveniently and rapidly protected. And the operation convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ENT surgery assistance, and in particular to an adjustable ENT surgery head position limiting device and a use method thereof. Background Art

[0002] The head position adjustment and fixation device is a necessary tool for doctors during surgery. It is the most important tool for placing patients and providing a more convenient surgical environment for doctors. When performing ENT surgery, the patient's head needs to be fixed to prevent the patient's head from naturally tilting to one side, which would bring risks to the surgery. At present, when performing some simpler ENT surgeries on patients, it may only be necessary to use a soft headband combined with a special surgical pillow to fix the head. In addition, the patient's head cannot be flipped left and right according to the actual needs of the surgery, which makes it inconvenient for doctors to perform ENT surgery at a better angle.

[0003] In response to the above-mentioned defects, the existing publication number: CN116531211A "A Head Position Adjustment Device for ENT Surgery" proposes a device for assisting in adjusting the angle. However, in actual use, the device assists the patient's head to rotate, but the patient's head is difficult to reinforce after rotation, resulting in unstable fixation of the patient's head, which is easy to displace and difficult to perform surgery effectively. It has the defect of poor stability. Secondly, when patients undergo ENT surgery, they usually cannot naturally keep their mouths and noses closed, and surgery often requires these parts to remain open so that surgeons can operate without obstacles. Summary of the invention

[0004] The present invention aims to solve the shortcomings existing in the background technology, provide an adjustable ENT surgery head position limit device and a method of use, and solve the defects of the prior art that it is difficult to provide high-stability patient head angle adjustment and fixation and difficult to provide good surgical assistance.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an adjustable head position limiting device for ENT surgery, comprising: a main body, which is a bed structure for the user to lie on his back, and a pillow is rotatably connected to one side of the main body, and an outer frame for covering the patient's head is provided on the top of the pillow; a fixing component, which is arranged inside the outer frame and is used to assist in fixing the patient's head; a rotating component, which is arranged between the main body and the pillow and is used to assist the patient in rotating his head to cooperate with the surgery; and an expansion component, which is arranged on one side of the outer frame and is used to assist in expanding the patient's ears, nose and throat to facilitate the surgery.

[0006] Furthermore, the fixing assembly includes: a clamping motor arranged on the inner wall of the outer frame, a driving rod is provided on one side of the clamping motor, and the driving rod is arranged in a cross-shaped structure; a clamping block is arranged on the inner wall of the outer frame, a pad is provided on the side of the clamping block away from the outer frame, a driving sleeve is provided on one side of the clamping block, a cross-shaped opening is opened inside the driving sleeve, the driving sleeve is threadedly engaged with the outer frame, and the driving sleeve is slidingly connected to the driving rod through the opening; positioning rods are arranged on both sides of the clamping block, the positioning rods are arranged toward the inner wall of the outer frame, a positioning opening is opened on the inner wall of the outer frame, and the positioning rods are slidingly connected to the positioning opening.

[0007] Furthermore, the rotating assembly includes: a plurality of matching stripes arranged on one side of the pillow, the plurality of matching stripes are distributed on the left and right sides of the pillow, and the plurality of matching stripes on the same side are distributed in an arc-shaped structure; a driving port opened on one side of the main body, a rotating motor is provided on the inner wall at the bottom of the driving port, a threaded block is connected to the top of the rotating motor through a driving shaft, and the threaded block and the matching stripes are meshed with each other.

[0008] Furthermore, the expansion component includes: a storage groove opened on one side of the outer frame, a movable tube is slidably connected inside the storage groove, and the movable tube is arranged in an "L"-shaped structure; two support rods are arranged at the bottom of the movable tube, the support rods are arranged in a bent structure, the support rods are rotatably connected to the end of the movable tube through a rotating shaft, and a bending spring is arranged between the support rod and the inner wall of the movable tube.

[0009] Furthermore, a detection rod is slidably connected inside the positioning rod, one end of the detection rod protrudes from the surface of the clamping block, and positioning clamps are slidably connected on both sides of the positioning rod. A positioning spring is provided between the two positioning clamps, and two traction ropes are provided at the end of the detection rod. The traction ropes are respectively connected to the two positioning clamps. A plurality of positioning grooves are provided on the inner wall of the positioning port, and the positioning clamps and the positioning grooves are engaged with each other.

[0010] Furthermore, the end of the positioning clamping plate is arranged in a semicircular structure, and the positioning groove is arranged in a triangular structure.

[0011] Furthermore, the main body is provided with a limiting groove on one side facing the pillow, the driving port is located on the inner wall of the limiting groove, the pillow is provided with a limiting block on one side close to the main body, the plurality of matching stripes are all located on the limiting block, and the limiting block is slidably connected to the limiting groove.

[0012] Furthermore, a reinforcement groove is provided at the bottom of the storage groove, a reinforcement plate is slidably connected inside the reinforcement groove, a reinforcement block is provided on the top of the reinforcement plate, the reinforcement block is made of sponge material, a bevel gear is rotatably connected to the bottom of the reinforcement groove, a reinforcement rod is provided on the top of the bevel gear, the reinforcement rod and the reinforcement plate are threadedly engaged, a drive disk is provided on one side of the drive rod, the drive disk is meshed with the bevel gear, a ventilation pipe is provided inside the movable tube, a piston is provided at the end of the ventilation pipe, and a traction rod is connected between the bottom of the piston and the support rod.

[0013] Furthermore, a control panel is provided on one side of the main body, and the control panel is electrically connected to the rotating motor and the clamping motor respectively.

[0014] Furthermore, the adjustable ear, nose and throat surgery head position limiting device comprises the following steps: S1. Guide the user to lie on the main body, and allow the user to put his head into the outer frame to fix the patient's head; S2. The doctor props up the surgical area of ​​the patient through the support rod under the movable tube to provide a surgical field of view and ensure visibility and operability of the surgical area; S3, driving the rotary motor through the control panel, and driving the driving rod through the rotary motor to drive the clamping block to move to clamp and fix the patient's head; S4. During the drive adjustment process, the rotating motor will also drive the drive plate and the bevel gear to rotate, and the rotating bevel gear will cooperate to drive the upper reinforcement plate to rotate, and seal the upper movable pipe and the ventilation pipe, thereby controlling the air pressure to ensure that the piston and the support rod will not move, providing a fixing effect; S5. Start the rotary motor through the control panel to drive the threaded block to rotate and cooperate with the pillow, thereby driving the pillow and the patient's head to rotate, so as to facilitate adjustment of the patient's head and provide a good surgical angle.

[0015] The advantage of the present invention is that the fixing component cooperates with the rotating component to effectively fix the patient's head, prevent the patient's head from naturally shifting to one side, provide good reinforcement stability, and use the expansion component to quickly expand the patient's surgical area to maintain the mouth and nose open state required for the operation, thereby improving the convenience of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the outer frame structure of the present invention.

[0019] Figure 4 It is a schematic cross-sectional view of the pillow structure of the present invention.

[0020] Figure 5 It is a schematic diagram of the pillow structure of the present invention.

[0021] Figure 6 It is a schematic diagram of the driving rod structure of the present invention.

[0022] Figure 7 It is a schematic diagram of the clamping block structure of the present invention.

[0023] Figure 8 It is a schematic diagram of the support rod structure of the present invention.

[0024] Fig. 9 For the present invention Figure 3 A is an enlarged schematic diagram.

[0025] Fig.10 For the present invention Figure 4 The enlarged schematic diagram of point B in FIG.

[0026] Fig.11 It is a schematic diagram of the workflow of the present invention.

[0027] Figure 1-11 Middle: 100-main body; 101-limiting groove; 102-driving port; 103-rotating motor; 104-threaded block; 200-pillow; 201-limiting block; 202-matching stripes; 300-outer frame; 301-storage groove; 301a-reinforcement groove; 301b-bevel gear; 301c-reinforcement rod; 301d-reinforcement plate; 301e-reinforcement block; 302-movable pipe; 302a-ventilation pipe; 302a-1-piston; 302b- Support rod; 302b-1-traction rod; 302b-2-bending spring; 303-clamping motor; 303a-driving rod; 303b-driving disk; 304-clamping block; 304a-driving sleeve; 304b-pad; 304c-positioning rod; 304c-1-detection rod; 304c-2-traction rope; 304c-3-positioning card plate; 304c-4-positioning spring; 305-positioning port; 305a-positioning slot; 400-control panel. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0029] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0030] The embodiments of the present application provide an adjustable ENT surgery head position limiting device and a method of use. The adjustable ENT surgery head position limiting device and the method of use can realize the use of a fixed component and a rotating component to effectively fix the patient's head, prevent the user's head from shaking and loosening, provide good reinforcement stability, and use an expansion component to quickly open the patient's diseased part to prevent the diseased part from closing and obstructing, thereby improving the convenience of the operation. The adjustable ENT surgery head position limiting device and the method of use are described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0031] The present application is described in detail below in conjunction with the accompanying drawings and specific implementation methods. Figure 1-11 In this embodiment, an adjustable ear, nose and throat surgery head position limiting device is provided, including: a main body 100, the main body 100 is a bed structure, which is convenient for the user to lie on his back, and one side of the main body 100 is rotatably connected to a pillow 200, and the top of the pillow 200 is provided with an outer frame 300 for covering the patient's head; a fixing component, the fixing component is arranged inside the outer frame 300, and is used to assist in fixing the patient's head; a rotating component, the rotating component is arranged between the main body 100 and the pillow 200, and is used to assist the patient to rotate the head to cooperate with the operation; and an expansion component, the expansion component is arranged on one side of the outer frame 300, and is used to assist in expanding the patient's ear, nose and throat to facilitate the operation. During use, the user can let the patient lie on the main body 100, and fix the patient's head through the fixing component, and at the same time assist in expanding the patient's surgical site through the expansion component, and drive the patient's head to rotate through the rotating component to provide good practicality.

[0032] The fixing assembly includes: a clamping motor 303 arranged on the inner wall of the outer frame 300, a driving rod 303a is arranged on one side of the clamping motor 303, and the driving rod 303a is arranged in a cross-shaped structure; a clamping block 304 is arranged on the inner wall of the outer frame 300, a cushion block 304b is arranged on the side of the clamping block 304 away from the outer frame 300, a driving sleeve 304a is arranged on one side of the clamping block 304, a cross-shaped opening is opened inside the driving sleeve 304a, the driving sleeve 304a is threadedly engaged with the outer frame 300, and the driving sleeve 304a is slidably connected to the driving rod 303a through the opening; positioning rods 304c are arranged on both sides of the clamping block 304, the positioning rods 304c are arranged toward the inner wall of the outer frame 300, a positioning opening 305 is opened on the inner wall of the outer frame 300, and the positioning rod 304c is slidably connected to the positioning opening 305; During use, the user can start the rotating motor 103 through the control panel 400, and drive the driving rod 303a to rotate through the rotating motor 103. At this time, the driving rod 303a can drive the driving sleeve 304a to rotate. At this time, the driving sleeve 304a will continue to rotate, and the rotating driving sleeve 304a and the outer frame 300 will engage with each other. During the engagement process, the driving sleeve 304a will move and drive the clamping block 304 to move, and the patient's face can be quickly clamped and positioned through the clamping block 304 and the pad block 304b.

[0033] Among them, the positioning rod 304c is slidably connected to the inside of the positioning rod 304c, one end of the detection rod 304c-1 protrudes from the surface of the clamping block 304, and positioning clamps 304c-3 are slidably connected on both sides of the positioning rod 304c. A positioning spring 304c-4 is provided between the two positioning clamps 304c-3. Two traction ropes 304c-2 are provided at the end of the detection rod 304c-1. The traction ropes 304c-2 are respectively connected to the two positioning clamps 304c-3. A plurality of positioning grooves 305a are opened on the inner wall of the positioning port 305, and the positioning clamps 304c-3 and the positioning grooves 305a are mutually engaged and connected; When in use, when the clamping block 304 is constantly moving, the clamping block 304 will fit against the patient's head. At this time, the detection rod 304c-1 on the clamping block 304 will also fit against the patient's head. At this time, the detection rod 304c-1 will be pressed by the patient under the contact of the patient's head. At this time, the detection rod 304c-1 will move toward the direction of the positioning card plate 304c-3, and the traction rope 304c-2 between the positioning card plate 304c-3 and the detection rod 304c-1 will loosen. In the case of loosening, the two positioning card plates 304c-3 will separate from each other under the push of the positioning spring 304c-4 and clamp the positioning groove 305a on the inner wall of the positioning port 305, thereby allowing the two sides of the positioning rod 304c to engage with the positioning groove 305a to prevent the positioning rod 304c from sliding and loosening.

[0034] Among them, the end of the positioning card plate 304c-3 is set in a semicircular structure, and the positioning groove 305a is set in a triangular structure. During use, the triangular structure can be used to guide the positioning card plate 304c-3 to be stuck in the positioning groove 305a, and the semicircular structure can make the positioning card plate 304c-3 more smoothly engage with the positioning groove 305a on the inner wall of the positioning port 305, thereby improving the practicality of the device. Example 1

[0035] On the basis of Example 1, the rotating assembly includes: a plurality of matching stripes 202 arranged on one side of the pillow 200, the plurality of matching stripes 202 are distributed on the left and right sides of the pillow 200, and the plurality of matching stripes 202 on the same side are distributed in an arc-shaped structure; a driving port 102 is opened on one side of the main body 100, a rotating motor 103 is arranged on the inner wall of the bottom of the driving port 102, a threaded block 104 is connected to the top of the rotating motor 103 through a driving shaft, and the threaded block 104 and the matching stripes 202 are meshed and connected with each other; During use, the user can start the rotating motor 103 through the control panel 400. At this time, the rotating motor 103 will drive the upper threaded block 104 to rotate. During the continuous rotation, the threaded block 104 will engage with the matching stripes 202. Under the action of the engaged connection, the pillow 200 will rotate. The rotating pillow 200 will drive the patient's head to rotate and adjust the angle, making it easier for the doctor to perform surgery.

[0036] Among them, a limiting groove 101 is opened on the side of the main body 100 facing the pillow 200, and the driving port 102 is located on the inner wall of the limiting groove 101. A limiting block 201 is provided on the side of the pillow 200 close to the main body 100. Multiple matching stripes 202 are all located on the limiting block 201, and the limiting block 201 is slidingly connected to the limiting groove 101. During use, the patient's head is driven to rotate by the mutual cooperation between the matching strips 202 and the threaded block 104, and the sliding connection between the limiting block 201 and the limiting groove 101 can limit the rotation angle of the pillow 200, prevent the pillow 200 from being difficult to rotate, and improve the practicability of the device. Example 2

[0037] On the basis of Example 1, the expansion assembly includes: a storage groove 301 opened on one side of the outer frame 300, a movable tube 302 is slidably connected inside the storage groove 301, and the movable tube 302 is arranged in an "L"-shaped structure; two support rods 302b are arranged at the bottom of the movable tube 302, the support rods 302b are arranged in a bent structure, the support rods 302b are rotatably connected to the end of the movable tube 302 through a rotating shaft, and a bending spring 302b-2 is arranged between the support rods 302b and the inner wall of the movable tube 302; During use, the user can pull the movable tube 302 to move it to the diseased part, and use multiple support rods 302b to open the patient's auricle, nostrils or mouth. During the opening process, the doctor can perform the operation more conveniently and prevent the patient from closing his mouth, making the operation difficult.

[0038] Among them, a reinforcement groove 301a is provided at the bottom of the storage groove 301, a reinforcement plate 301d is slidably connected inside the reinforcement groove 301a, a reinforcement block 301e is provided on the top of the reinforcement plate 301d, and the reinforcement block 301e is made of sponge material; a bevel gear 301b is rotatably connected to the bottom of the reinforcement groove 301a, a reinforcement rod 301c is provided on the top of the bevel gear 301b, and the reinforcement rod 301c is threadedly engaged with the reinforcement plate 301d; a driving disk 303b is provided on one side of the driving rod 303a, and the driving disk 303b is meshed with the bevel gear 301b; a ventilation pipe 302a is provided inside the movable tube 302, a piston 302a-1 is provided at the end of the ventilation pipe 302a, and a traction rod 302b-1 is connected between the bottom of the piston 302a-1 and the support rod 302b; During use, the user can support the patient's affected part through the multiple support rods 302b, and the rotation of the support rods 302b will drive the piston 302a-1 to move. During the process of adjusting the position, since the ventilation tube 302a is connected to the outside, the movement of the piston 302a-1 will not be hindered; When the user fixes the patient's head through the clamping motor 303, the clamping motor 303 will drive the driving disk 303b to rotate, and the rotating driving disk 303b will drive the bevel gear 301b to rotate, and the rotating bevel gear 301b will drive the upper reinforcement rod 301c to rotate, and the rotating reinforcement rod 301c can drive the reinforcement plate 301d and the reinforcement block 301e to move toward the storage groove 301. At this time, the reinforcement block 301e made of sponge material will fill the storage groove 301. During the filling process, the movable tube 302 will hinder the movement of the reinforcement block 301e, and the reinforcement block 301e will shrink and squeeze the movable tube 302 to prevent the movable tube 302 from sliding. At the same time, the reinforcement block 301e will squeeze the sealing storage groove 301 on the side not blocked by the movable tube 302. At this time, the movement of the movable tube 302 is restricted by friction, and the ventilation tube 302a inside the movable tube 302 will be sealed by the reinforcement block 301e. During the sealing process, the interior of the ventilation tube 302a is in a closed state and the piston 302a-1 cannot move. Then, through the connection between the piston 302a-1 and the support rod 302b, the support rod 302b is also fixed to prevent the support rod 302b from loosening. At this time, the position of the movable tube 302 is restricted and the angle of the support rod 302b is also restricted, so that both the movable tube 302 and the support rod 302b can be fixed to prevent them from deviating.

[0039] A control panel 400 is disposed on one side of the main body 100 , and the control panel 400 is electrically connected to the rotating motor 103 and the clamping motor 303 , respectively.

[0040] The adjustable head position limiting device for ear, nose and throat surgery includes the following steps: S1. Guide the user to lie on the main body 100, and allow the user to put the head into the outer frame 300 to fix the patient's head; S2. The doctor props up the surgical area of ​​the patient through the support rod 302b under the movable tube 302 to provide a surgical field of view and ensure visibility and operability of the surgical area; S3, driving the rotating motor 103 through the control panel 400, and driving the driving rod 303a through the rotating motor 103 to drive the clamping block 304 to move to clamp and fix the patient's head; S4. During the driving adjustment process, the rotating motor 103 also drives the driving disk 303b and the bevel gear 301b to rotate, and the rotating bevel gear 301b cooperates to drive the upper reinforcement plate 301d to rotate, and seals the upper movable pipe 302 and the ventilation pipe 302a, thereby controlling the air pressure to ensure that the piston 302a-1 and the support rod 302b do not move, providing a fixing effect; S5. Start the rotary motor 103 through the control panel 400 to drive the threaded block 104 to rotate and cooperate with the pillow 200, thereby driving the pillow 200 and the patient's head to rotate, so as to adjust the patient's head and provide a good surgical angle.

[0041] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0042] The above is a detailed introduction to an adjustable ENT surgery head position limit device and a method of use provided in an embodiment of the present application. Specific examples are used in this article to illustrate the distance and implementation method of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. An adjustable head position limiting device for ear, nose and throat surgery, characterized in that: include: A main body (100), the main body (100) being a bed structure, convenient for a user to lie on his back, a pillow (200) being rotatably connected to one side of the main body (100), and an outer frame (300) being provided on the top of the pillow (200) for covering the patient's head; A fixing component, the fixing component is arranged inside the outer frame (300) and is used to assist in fixing the patient's head; a rotating assembly, the rotating assembly being arranged between the main body (100) and the pillow (200) and being used to assist the patient in rotating his head to cooperate with the surgery; and An expansion component is arranged on one side of the outer frame (300) and is used to assist in expanding the patient's ears, nose and throat to facilitate surgery.

2. The adjustable ear, nose and throat surgery head position limiting device according to claim 1, characterized in that: The fixing assembly comprises: A clamping motor (303) is arranged on the inner wall of the outer frame (300), a driving rod (303a) is provided on one side of the clamping motor (303), and the driving rod (303a) is arranged in a cross-shaped structure; A clamping block (304) is arranged on the inner wall of the outer frame (300), a cushion block (304b) is arranged on the side of the clamping block (304) away from the outer frame (300), a driving sleeve (304a) is arranged on one side of the clamping block (304), a cross-shaped opening is provided inside the driving sleeve (304a), the driving sleeve (304a) is threadedly engaged with the outer frame (300), and the driving sleeve (304a) is slidably connected to the driving rod (303a) through the opening; Positioning rods (304c) are arranged on both sides of the clamping block (304), the positioning rods (304c) are arranged toward the inner wall of the outer frame (300), a positioning opening (305) is provided on the inner wall of the outer frame (300), and the positioning rods (304c) are slidably connected to the positioning opening (305).

3. The adjustable ear, nose and throat surgery head position limiting device according to claim 1, characterized in that: The rotating assembly comprises: A plurality of matching stripes (202) are arranged on one side of the pillow (200), the plurality of matching stripes (202) are distributed on the left and right sides of the pillow (200), and the plurality of matching stripes (202) on the same side are distributed in an arc-shaped structure; A driving port (102) is provided on one side of the main body (100), and a rotating motor (103) is provided on the inner wall of the bottom of the driving port (102). A threaded block (104) is connected to the top of the rotating motor (103) through a driving shaft, and the threaded block (104) and the matching stripe (202) are meshed with each other.

4. The adjustable ear, nose and throat surgery head position limiting device according to claim 1, characterized in that: The expansion assembly comprises: A storage groove (301) is provided on one side of the outer frame (300), a movable tube (302) is slidably connected inside the storage groove (301), and the movable tube (302) is arranged in an "L"-shaped structure; Two support rods (302b) are arranged at the bottom of the movable tube (302); the support rods (302b) are arranged in a bent structure; the support rods (302b) are rotatably connected to the end of the movable tube (302) via a rotating shaft; and a bending spring (302b-2) is arranged between the support rods (302b) and the inner wall of the movable tube (302).

5. The adjustable ear, nose and throat surgery head position limiting device according to claim 2, characterized in that: A detection rod (304c-1) is slidably connected inside the positioning rod (304c), one end of the detection rod (304c-1) protrudes from the surface of the clamping block (304), positioning clamps (304c-3) are slidably connected to both sides of the positioning rod (304c), a positioning spring (304c-4) is provided between the two positioning clamps (304c-3), two traction ropes (304c-2) are provided at the end of the detection rod (304c-1), the traction ropes (304c-2) are respectively connected to the two positioning clamps (304c-3), a plurality of positioning grooves (305a) are provided on the inner wall of the positioning opening (305), and the positioning clamps (304c-3) and the positioning grooves (305a) are mutually engaged and connected.

6. The adjustable ear, nose and throat surgery head position limiting device according to claim 5, characterized in that: The end of the positioning clamping plate (304c-3) is arranged in a semicircular structure, and the positioning groove (305a) is arranged in a triangular structure.

7. The adjustable ear, nose and throat surgery head position limiting device according to claim 3, characterized in that: A limiting groove (101) is provided on the side of the main body (100) facing the pillow (200), the driving port (102) is located on the inner wall of the limiting groove (101), a limiting block (201) is provided on the side of the pillow (200) close to the main body (100), a plurality of matching stripes (202) are all located on the limiting block (201), and the limiting block (201) is slidably connected to the limiting groove (101).

8. The adjustable ear, nose and throat surgery head position limiting device according to claim 2 or 4, characterized in that: A reinforcement groove (301a) is provided at the bottom of the storage groove (301), a reinforcement plate (301d) is slidably connected inside the reinforcement groove (301a), a reinforcement block (301e) is provided on the top of the reinforcement plate (301d), and the reinforcement block (301e) is made of sponge material; a bevel gear (301b) is rotatably connected to the bottom of the reinforcement groove (301a), and a reinforcement rod (301c) is provided on the top of the bevel gear (301b), and the reinforcement rod (301c) is rotatably connected to the reinforcement plate (301d). The fixing plates (301d) are threadedly engaged with each other, a driving disc (303b) is provided on one side of the driving rod (303a), the driving disc (303b) is meshedly connected with the bevel gear (301b), a vent pipe (302a) is provided inside the movable tube (302), a piston (302a-1) is provided at the end of the vent pipe (302a), and a traction rod (302b-1) is connected between the bottom of the piston (302a-1) and the support rod (302b).

9. The adjustable ear, nose and throat surgery head position limiting device according to claim 3, characterized in that: A control panel (400) is provided on one side of the main body (100), and the control panel (400) is electrically connected to the rotating motor (103) and the clamping motor (303) respectively.

10. The adjustable ear, nose and throat surgery head position limiting device according to claims 1 to 9, characterized in that: The steps include: S1. Guide the user to lie on the main body, and allow the user to put his head into the outer frame to fix the patient's head; S2. The doctor props up the surgical area of ​​the patient through the support rod under the movable tube to provide a surgical field of view and ensure visibility and operability of the surgical area; S3, driving the rotary motor through the control panel, and driving the driving rod through the rotary motor to drive the clamping block to move to clamp and fix the patient's head; S4. During the drive adjustment process, the rotating motor will also drive the drive plate and the bevel gear to rotate, and the rotating bevel gear will cooperate to drive the upper reinforcement plate to rotate, and seal the upper movable pipe and the ventilation pipe, thereby controlling the air pressure to ensure that the piston and the support rod will not move, providing a fixing effect; S5. Start the rotary motor through the control panel to drive the threaded block to rotate and cooperate with the pillow, thereby driving the pillow and the patient's head to rotate, so as to facilitate adjustment of the patient's head and provide a good surgical angle.

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