Anti-loosening head fixing device

Abstract

The invention relates to the technical field of medical equipment, in particular to an anti-loosening head fixing device which comprises a medical bed, a head placing plate used for placing a head is fixedly connected to the side face of the medical bed, and a clamping limiting structure used for clamping the head is arranged on the side, close to the head placing plate, of the medical bed. A massage structure used for massaging the back of a patient is arranged at the top of the clamping and limiting structure, a liquid spraying structure used for lubricating the clamping and limiting structure is arranged on the surface of the medical bed, and the clamping and limiting structure is driven to clamp the head of the patient and generate deformation, so that holes formed in the surface of the silica gel block are enlarged, and air permeability is improved. The patient is prone to tension and sweat stains, bacteria can be generated if the silica gel block is not ventilated in time, the silica gel block is made of silica gel, then skin tissue of the patient cannot be damaged, then the massage structure is driven to massage the back of the patient, the attention of the patient can be effectively distracted, and the tension phenomenon of the patient is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to an anti-loosening head fixing device. Background Art

[0002] In the field of ophthalmic surgery, the patient's head needs to be fixed to facilitate the operation. The head fixation devices for ophthalmology on the market cannot be adjusted in height according to the actual situation, are inconvenient to use, and are expensive and difficult to promote. When fixing the patient's head, the patient's head is easy to shake, which is quite dangerous. It cannot meet the requirements of the head fixation devices in the field of ophthalmic surgery.

[0003] However, when the patient's head is fixed, it is fixed in the form of a strap or a fixing belt. However, after fixation, the patient will still shake his head due to tension or discomfort, which affects the medical staff's operation on the patient. When the patient shakes his head, friction will occur with the components that fix the head, which will cause damage to the patient's skin tissue. In addition, when the patient's head is fixed in the form of a strap or a fixing belt, this method will break free from the fixation when encountering an adult male due to his strong strength, resulting in the subsequent loosening of the strap or fixing belt, making it impossible to tighten the patient's head, which will affect the work progress of the medical staff and also cause damage to the patient's skin tissue.

[0004] In addition, when the patient's head is fixed, the patient will feel nervous or uncomfortable, which will cause the neck to twist, causing the patient's head to move, which will affect the work progress of medical staff and even cause irreversible harm to the patient. In view of this, we propose an anti-loosening head fixation device. Summary of the invention

[0005] The object of the present invention is to provide a head fixing device that prevents loosening, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides an anti-loosening head fixing device, comprising a medical bed, a head placement plate for placing the head is fixedly connected to the side of the medical bed, a clamping and limiting structure for clamping the head is arranged on the side of the medical bed close to the head placement plate, a massage structure for massaging the patient's back is arranged on the top of the clamping and limiting structure, and a liquid spraying structure for lubricating the clamping and limiting structure is arranged on the surface of the medical bed;

[0007] When in use, the clamping and limiting structure is driven to clamp the patient's head and deform, and the massage structure is driven to massage the patient's back, while the liquid spraying structure is driven to move to limit the patient's neck, and then the lubricating liquid is sprayed on the surface of the clamping and limiting structure;

[0008] When not in use, the air vents are reduced in size by driving the clamping limit structure to reset and move, while the massage structure is driven to reset and move the massage component away from the patient's back, and then the spray structure is driven to move away from the patient's neck.

[0009] Preferably, the clamping and limiting structure includes a first screw rod, one end of which is fixedly connected to the bottom of the medical bed via a fixed plate, one end of the first screw rod is fixedly connected to the first rotating disk, the outer ring surface of the first screw rod is threadedly connected to the first threaded block, the end of the first screw rod away from the first rotating disk is rotatably connected to the limiting block, the top of the limiting block is fixedly connected to the bottom of the head placement plate, the side of the limiting block away from the first screw rod is rotatably connected to the second screw rod, the outer ring surface of the second screw rod is threadedly connected to the second threaded block, and the tops of the first threaded block and the second threaded block are both fixedly connected to silicone blocks.

[0010] Preferably, the massage structure includes a movable plate, which is fixedly connected to the side of the silicone block, a friction plate is fixedly connected to the bottom of the movable plate, and a friction rotating shaft is frictionally connected to the bottom of the friction plate. The surface of the friction rotating shaft passes through a rotationally connected limit box, and the limit box is slidably connected to the inside of the medical bed. A plurality of groups of massage blocks are fixedly connected to the outer ring surface of the friction rotating shaft on one side close to the limit box, and a second rotating disk is fixedly connected to the side of the friction rotating shaft away from the limit box, and the bottom of the limit box is fixedly connected to the first threaded block.

[0011] Preferably, the liquid spray structure includes a liquid storage tank, which is slidably connected to the surface of the medical bed, and a piston cylinder is fixedly connected to the top of the liquid storage tank, and a guide tube is hingedly connected to the outer ring surface of the piston cylinder, and the end of the guide tube away from the piston cylinder is hingedly connected to the side of the silicone block, and the side of the silicone block that can clamp the patient's head is liquid-permeable, and a piston rod is slidably connected to the inside of the piston cylinder, and the piston rod and the movable plate are arranged on the same horizontal line.

[0012] Preferably, one side of the liquid storage tank is arranged in an arc shape, and an L-shaped plate is slidably connected to the side of the liquid storage tank, and the bottom of the L-shaped plate is in contact with the second rotating disk.

[0013] Preferably, the threads of the first screw rod and the second screw rod are arranged oppositely, the tops of the first threaded block and the second threaded block connected by the outer annular surfaces of the first screw rod and the second screw rod are both in contact with the side of the head placement plate, and the two ends of the first screw rod and the second screw rod that are far away from each other are rotatably connected to the bottom of the medical bed through a fixing plate.

[0014] Preferably, the friction rotating shaft is provided with several groups along the surface of the limit box, several groups of massage blocks are provided on the surface of the friction rotating shaft, and several groups of second rotating disks are provided along the friction rotating shaft, the second rotating disk fixedly connected to one end of the friction rotating shaft away from the limit box.

[0015] Preferably, the guide tube, piston cylinder, liquid storage tank, piston rod and L-shaped plate are symmetrically arranged in two groups along the transverse center of the medical bed, the liquid storage tank is slidable on the surface of the medical bed, and the guide tube is made of soft material.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In this anti-loosening head fixing device, the clamping and limiting structure is driven to clamp the patient's head and deform it, so that the holes opened on the surface of the silicone block become larger and the air permeability is improved. When the patient's head is fixed, the patient is prone to nervousness and sweat stains. If the silicone block is not ventilated in time, bacteria will be produced. The silicone block is silicone, so it will not cause damage to the patient's skin tissue, and it can also limit the patient's head. Then the massage structure is driven to massage the patient's back, which can effectively distract the patient's attention and reduce the patient's nervousness or discomfort.

[0018] 2. In this anti-loosening head fixation device, the patient's neck is limited by driving the liquid spray structure to move, and then the lubricating liquid is sprayed on the surface of the silicone block. This can not only prevent the silicone block from contacting the patient's sweat and causing friction to damage the patient's skin tissue, but also spray lubricating oil on the surface of the silicone block to prevent the patient's skin from being damaged when the head moves. The setting of the liquid storage tank can also limit the movement of the patient's neck, thereby improving the effect of fixing the patient's head and reducing secondary injuries to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall assembly of the present invention;

[0020] Figure 2 It is a partial schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is a partial schematic diagram of the overall structure of the present invention when viewed from above;

[0022] Figure 4 It is a top view of the overall structure of the present invention;

[0023] Figure 5 It is a partial schematic diagram of the massage structure and the liquid spraying structure of the present invention;

[0024] Figure 6 It is a top perspective view of the massage structure and the liquid spraying structure of the present invention;

[0025] Figure 7 It is a two-dimensional schematic diagram of the motion state of the overall structure of the present invention;

[0026] Figure 8 It is a two-dimensional schematic diagram of the overall structure of the present invention in a reset state;

[0027] Fig. 9 It is a partial schematic diagram of the L-shaped plate and the second rotating disk of the present invention.

[0028] The meaning of each number in the figure is:

[0029] 1. Medical bed; 2. Head placement plate; 300. Clamping and limiting structure; 301. First rotating disk; 302. First screw rod; 303. First threaded block; 304. Limiting block; 305. Second screw rod; 306. Second threaded block; 307. Silicone block; 400. Massage structure; 401. Moving plate; 402. Friction plate; 403. Friction rotating shaft; 404. Massage block; 405. Second rotating disk; 406. Limiting box; 500. Liquid spraying structure; 501. Guide pipe; 502. Piston cylinder; 503. Liquid storage tank; 504. Piston rod; 505. L-shaped plate. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the field of ophthalmic surgery, it is necessary to fix the patient's head to facilitate the operation. The head fixation devices for ophthalmology on the market cannot be adjusted in height according to the actual situation, are inconvenient to use, and are expensive and difficult to promote. When fixing the patient's head, the patient's head is easy to shake, which is quite dangerous. It cannot meet the requirements of the head fixation device in the field of ophthalmic surgery. For the embodiments of the present invention, please refer to Figures 1 to 9 , an anti-loosening head fixing device, comprising a medical bed 1, a head placement plate 2 for placing a head is fixedly connected to the side of the medical bed 1, a clamping and limiting structure 300 for clamping the head is arranged on the side of the medical bed 1 close to the head placement plate 2, a massage structure 400 for massaging the patient's back is arranged on the top of the clamping and limiting structure 300, and a liquid spraying structure 500 for lubricating the clamping and limiting structure 300 is arranged on the surface of the medical bed 1;

[0032] When in use, the clamping and limiting structure 300 is driven to clamp the patient's head and deform, and the massage structure 400 is driven to massage the patient's back, and at the same time, the liquid spraying structure 500 is driven to move to limit the patient's neck, and then the lubricating liquid is sprayed on the surface of the clamping and limiting structure 300;

[0033] When not in use, the air holes are reduced in size by driving the clamping and limiting structure 300 to reset and move, while driving the massage structure 400 to reset and move the massage component away from the patient's back, and then driving the liquid spraying structure 500 to move away from the patient's neck.

[0034] The present invention takes into account that, when the patient's head is fixed, it is fixed in the form of a bandage or a fixing belt. However, after fixation, the patient may still shake his head due to tension or discomfort, thereby affecting the medical staff's operation on the patient. When the patient shakes his head, friction will occur with the bandage or the head fixing component, which will cause damage to the patient's skin tissue or secondary damage to the patient by the medical staff. In addition, when the patient's head is fixed, it is fixed in the form of a bandage or a fixing belt. When an adult male is used, the head may break free due to his strong strength, and the bandage or the fixing belt may even become loose and fail to fix the patient's head tightly. Therefore, the clamping and limiting structure 300 is driven to clamp the patient's head and deform, so that the holes on the surface of the silicone block 307 become larger and the air permeability is improved. When the patient's head is fixed, the patient is prone to sweat due to nervousness. If the silicone block 307 is not ventilated in time, bacteria will be generated. The silicone block 307 is a silicone setting, so it will not cause damage to the patient's skin tissue, and it can also limit the patient's head. Then the massage structure 400 is driven to massage the patient's back, which can effectively distract the patient's attention and reduce the patient's nervousness or discomfort.

[0035] Moreover, most of the existing ones fix the patient's head, but when the patient is nervous or uncomfortable, the neck will shake and the patient's head will move with it, which will affect the work progress of the medical staff and even cause irreversible damage to the patient. Therefore, by driving the liquid spraying structure 500 to move to limit the patient's neck, and then spraying lubricating liquid on the surface of the silicone block 307, it can not only prevent the silicone block 307 from contacting with the patient's sweat and causing friction to damage the patient's skin tissue, but also spray lubricating oil on the surface of the silicone block 307 to prevent the patient's head from moving and causing skin damage. In addition, the setting of the liquid storage tank 503 can also limit the movement of the patient's neck, thereby improving the effect of fixing and limiting the patient's head, and reducing secondary damage to the patient.

[0036] In order to achieve the fixed position of the patient's head, the following specific structures need to be disclosed in detail, please refer to Figures 1 to 6The clamping and limiting structure 300 includes a first screw rod 302, one end of which is fixedly connected to the bottom of the medical bed 1 through a fixing plate, one end of the first screw rod 302 is fixedly connected to the first rotating disk 301, the outer ring surface of the first screw rod 302 is threadedly connected to the first threaded block 303, the end of the first screw rod 302 away from the first rotating disk 301 is rotatably connected to the limiting block 304, the top of the limiting block 304 is fixedly connected to the bottom of the head placement plate 2, the side of the limiting block 304 away from the first screw rod 302 is rotatably connected to the second screw rod 305, the outer ring surface of the second screw rod 305 is threadedly connected to the second threaded block 306, and the tops of the first threaded block 303 and the second threaded block 306 are fixedly connected to the silicone block 307;

[0037] First, the patient needs to lie on the surface of the medical bed 1 and put his head on the surface of the head placement plate 2, and then put the lubricating liquid into the liquid storage tank 503, and then the medical staff manually shakes the first rotating disk 301. The first rotating disk 301 is provided to facilitate the medical staff to rotate the first screw rod 302. When the first rotating disk 301 rotates, it will drive the first screw rod 302 to rotate forward, and drive the first threaded block 303 to move on the surface of the first screw rod 302 and move toward the patient's head. Then, when the first screw rod 302 rotates, due to the setting of the limit block 304, The second screw rod 305 is driven to reverse and the second threaded block 306 is driven to move to the other side of the patient's head. After the first threaded block 303 and the second threaded block 306 are moved toward the patient's head, the two groups of silicone blocks 307 are driven toward the patient's head and clamp the patient's head. Due to the characteristics of the silicone blocks 307 themselves, they will deform, making the holes on the surface of the silicone blocks 307 larger. When the two groups of silicone blocks 307 clamp the patient's head, the patient may sweat nervously, and the holes on the surface of the silicone blocks 307 become larger, which provides better ventilation for the patient's head.

[0038] In order to distract the patient and comfort the patient, the following specific structure needs to be disclosed in detail, please refer to Figures 1 to 6 The massage structure 400 includes a movable plate 401, which is fixedly connected to the side of the silicone block 307, a friction plate 402 is fixedly connected to the bottom of the movable plate 401, and a friction rotating shaft 403 is frictionally connected to the bottom of the friction plate 402. The surface of the friction rotating shaft 403 passes through a rotationally connected limit box 406, and the limit box 406 is slidably connected to the inside of the medical bed 1. A plurality of groups of massage blocks 404 are fixedly connected to the outer annular surface of the friction rotating shaft 403 close to the limit box 406, and a second rotating disk 405 is fixedly connected to the side of the friction rotating shaft 403 away from the limit box 406, and the bottom of the limit box 406 is fixedly connected to the first threaded block 303;

[0039] When the first threaded block 303 and the second threaded block 306 move closer to the patient's head, the two sets of limit boxes 406 will be synchronously driven to move toward the patient's back, and then the limit boxes 406 will drive the friction rotating shaft 403 to slide inside the medical bed 1 and always be frictionally connected with the bottom of the friction plate 402, and then when the two sets of silicone blocks 307 clamp the patient's head, the limit boxes 406 have moved to the patient's back, and then the patient's head will be tense after being clamped by the silicone block 307, causing the patient's head to move around. When the patient's head moves around, the patient's head constantly rubs or contacts with the surface of the silicone block 307, which will cause the silicone block 307 to constantly change. shape, and then the movable plate 401 is driven to continuously reciprocate left and right, and the friction plate 402 is driven to continuously reciprocate left and right, and then the bottom of the friction plate 402 is continuously rubbed with the surface of the friction rotating shaft 403, and then the friction rotating shaft 403 is driven to rotate and drive a plurality of groups of massage blocks 404 to rotate, so that the patient's back can be massaged, which can effectively distract the patient's attention and prevent the patient's excessive behavior from causing the silicone block 307 to become loose. Then, when the massage block 404 massages the patient's back, the patient's body tension and fatigue can be relieved, so that the patient's body is in a relatively comfortable state, which helps to relieve the patient's tension;

[0040] In order to spray lubricating liquid inside the clamping and limiting structure 300 to prevent the patient from being damaged in the skin tissue after continuous contact and friction with the surface of the silicone block 307, the following specific structure needs to be disclosed in detail. The liquid spraying structure 500 includes a liquid storage tank 503, which is slidably connected to the surface of the medical bed 1. A piston cylinder 502 is fixedly connected to the top of the liquid storage tank 503. A guide tube 501 is hingedly connected to the outer ring surface of the piston cylinder 502. The end of the guide tube 501 away from the piston cylinder 502 is hingedly connected to the side of the silicone block 307. The side of the silicone block 307 that can clamp the patient's head is liquid-permeable. A piston rod 504 is slidably connected to the inside of the piston cylinder 502. The piston rod 504 and the movable plate 401 are arranged on the same horizontal line.

[0041] When the two groups of silicone blocks 307 move toward the patient's head, the two groups of moving plates 401 will be driven to move synchronously. Since the moving plates 401 and the piston rod 504 are arranged at the same horizontal line, when the moving plates 401 move, they will contact the piston rod 504, and then drive the piston rod 504 to move inside the L-shaped plate 505. At this time, pressure will be generated inside the L-shaped plate 505, and the hydraulic oil stored inside the L-shaped plate 505 will be diverted from the guide tube 501 to the surface of the silicone block 307. Since the side of the silicone block 307 that can clamp the patient's head is liquid-permeable, the lubricating oil diverted inside the silicone block 307 will be on the surface of the silicone block 307. Therefore, after the patient's head is clamped by the silicone block 307, even if the head shakes, the silicone block 307 cannot damage the patient's skin tissue, thereby preventing the patient's skin from being damaged and causing secondary injuries, and at the same time improving the clamping effect of the silicone block 307.

[0042] In order for the liquid spraying structure 500 to achieve the limited movement of the patient's neck, the following specific structure needs to be disclosed in detail, please refer to Figures 1 to 6 One side of the liquid storage tank 503 is in an arc shape, and an L-shaped plate 505 is slidably connected to the side of the liquid storage tank 503, and the bottom of the L-shaped plate 505 is in contact with the second rotating disk 405;

[0043] When the patient's head moves around after being clamped by the silicone block 307, and drives the movable plate 401 and the friction plate 402 to shake left and right, and then drives the friction rotating shaft 403 to rotate, the second rotating disk 405 will be driven to rotate, and then it will continuously contact the L-shaped plate 505 during the rotation process, and the L-shaped plate 505 is provided with a return spring near the liquid storage tank 503, so that the L-shaped plate 505 will continuously slide inside the liquid storage tank 503, so that the lubricating liquid stored in the liquid storage tank 503 is stirred, and the lubricating liquid stored in the liquid storage tank 503 is prevented from solidifying and unable to be transported to the inside of the silicone block 307, thereby improving the effect of the silicone block 307 in clamping the patient, and preventing the patient from secondary injury at the same time;

[0044] In order to achieve better clamping and limiting of the patient's head, the following specific structures need to be disclosed in detail, please refer to Figures 1 to 6 The threads of the first screw rod 302 and the second screw rod 305 are oppositely arranged, and the tops of the first threaded block 303 and the second threaded block 306 connected by the outer annular surfaces of the first screw rod 302 and the second screw rod 305 are both in contact with the side of the head placement plate 2, and the two ends of the first screw rod 302 and the second screw rod 305 that are far away from each other are rotatably connected to the bottom of the medical bed 1 through a fixing plate;

[0045] When the first threaded block 303 and the second threaded block 306 move toward each other through the first screw rod 302 and the second screw rod 305, the two groups of silicone blocks 307 will be synchronously driven to move toward each other. When the first threaded block 303 and the second threaded block 306 are close to each other at the maximum distance, they will abut against the two sides of the head placement plate 2. Since the two groups of silicone blocks 307 are larger than the first threaded block 303 and the second threaded block 306, the silicone blocks 307 can clamp and limit the patient's head. At the same time, the first threaded block 303 and the second threaded block 306 will abut against the side of the head placement plate 2, thereby stabilizing the clamping effect of the silicone blocks 307. When the patient's head is not clamped, the first rotating disk 301 is reversed to make the first threaded block 303 and the second threaded block 306 move away from the patient's head, and facilitate the patient to get up later.

[0046] In order for the massage structure 400 to better massage the patient's back, the following specific structure needs to be disclosed in detail, please refer to Figures 1 to 6 , the friction rotating shaft 403 is provided with several groups along the surface of the limit box 406, and several groups of massage blocks 404 are provided on the surface of the friction rotating shaft 403, and the second rotating disk 405 fixedly connected to one end of the friction rotating shaft 403 away from the limit box 406 is provided with several groups of second rotating disks 405 along the friction rotating shaft 403;

[0047] When the limit box 406 slides inside the medical bed 1, since both sides of the limit box 406 are provided with telescopic plates, when the limit box 406 moves close to the patient's back, the side of the limit box 406 away from the back opens the telescopic plate, and conversely, when the limit box 406 is reset to the initial position, the telescopic plate on the other side is driven to move. In short, when the limit box 406 moves, the surface of the medical bed 1 always remains in a closed state, which can not only prevent the limit box 406 from detaching during movement, but also keep the surface of the medical bed 1 in a closed state to prevent the patient from falling.

[0048] In order to better realize the spraying structure 500 to spray the lubricating liquid inside the silicone block 307, the following specific structure needs to be disclosed in detail, please refer to Figures 1 to 6 The guide tube 501, the piston cylinder 502, the liquid storage tank 503, the piston rod 504 and the L-shaped plate 505 are symmetrically arranged in two groups along the transverse center of the medical bed 1. The liquid storage tank 503 can slide on the surface of the medical bed 1, and the guide tube 501 is made of soft material;

[0049] When the movable plate 401 is reset, the piston rod 504 will not slide inside the piston cylinder 502, because a one-way valve and a return spring are provided inside the piston cylinder 502, and the one-way valve is used to control the flow of the guide tube 501, and the return spring is used to better reset the piston rod 504. Therefore, when the piston rod 504 does not slide inside the piston cylinder 502, the piston rod 504 will automatically reset. At this time, suction will be generated inside the piston cylinder 502, and the hydraulic oil stored in the liquid storage tank 503 will be diverted to the inside of the piston cylinder 502, and it will be convenient for the piston rod 504 to squeeze the inside of the piston cylinder 502 again. The lubricating fluid inside the piston cylinder 502 will be diverted from the guide tube 501 to the inside of the silicone block 307, so as to facilitate lubrication of the silicone block 307 again, thereby ensuring that the surface of the silicone block 307 is always in a lubricated state and improving the clamping effect of the silicone block 307.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A head fixing device for preventing loosening, comprising a medical bed (1), characterized in that: A head placement plate (2) for placing the head is fixedly connected to the side of the medical bed (1); a clamping and limiting structure (300) for clamping the head is arranged on the side of the medical bed (1) close to the head placement plate (2); a massage structure (400) for massaging the patient's back is arranged on the top of the clamping and limiting structure (300); and a liquid spraying structure (500) for lubricating the clamping and limiting structure (300) is arranged on the surface of the medical bed (1); When in use, the clamping and limiting structure (300) is driven to clamp the patient's head and deform it, and the massage structure (400) is driven to massage the patient's back, while the liquid spraying structure (500) is driven to move to limit the patient's neck, and then the lubricating liquid is sprayed on the surface of the clamping and limiting structure (300); When not in use, the air vents are reduced in size by driving the clamping and limiting structure (300) to reset and move, while driving the massage structure (400) to reset and move the massage component away from the patient's back, and then driving the liquid spraying structure (500) to move away from the patient's neck.

2. The anti-loosening head fixing device according to claim 1, characterized in that: The clamping and limiting structure (300) comprises a first screw rod (302), one end of which is fixedly connected to the bottom of the medical bed (1) via a fixing plate, one end of which is fixedly connected to a first rotating disk (301), a first threaded block (303) is threadedly connected to the outer ring surface of the first screw rod (302), an end of the first screw rod (302) away from the first rotating disk (301) is rotatably connected to a limiting block (304), a top of the limiting block (304) is fixedly connected to the bottom of the head placement plate (2), a side of the limiting block (304) away from the first screw rod (302) is rotatably connected to a second screw rod (305), an outer ring surface of the second screw rod (305) is threadedly connected to a second threaded block (306), and a silicone block (307) is fixedly connected to the top of both the first threaded block (303) and the second threaded block (306).

3. The anti-loosening head fixing device according to claim 1, characterized in that: The massage structure (400) comprises a movable plate (401), wherein the movable plate (401) is fixedly connected to the side of the silica gel block (307), the bottom of the movable plate (401) is fixedly connected to a friction plate (402), the bottom of the friction plate (402) is frictionally connected to a friction rotating shaft (403), the surface of the friction rotating shaft (403) passes through a rotationally connected limit box (406), the limit box (406) is slidably connected to the inside of the medical bed (1), a plurality of groups of massage blocks (404) are fixedly connected to the outer ring surface of a side of the friction rotating shaft (403) close to the limit box (406), a second rotating disk (405) is fixedly connected to a side of the friction rotating shaft (403) away from the limit box (406), and the bottom of the limit box (406) is fixedly connected to the first threaded block (303).

4. The anti-loosening head fixing device according to claim 1, characterized in that: The liquid spraying structure (500) comprises a liquid storage tank (503), the liquid storage tank (503) is slidably connected to the surface of the medical bed (1), a piston cylinder (502) is fixedly connected through the top of the liquid storage tank (503), a guide tube (501) is hingedly connected through the outer ring surface of the piston cylinder (502), one end of the guide tube (501) away from the piston cylinder (502) is hingedly connected to the side of the silicone block (307), the side of the silicone block (307) that can clamp the patient's head is liquid-permeable, a piston rod (504) is slidably connected inside the piston cylinder (502), and the piston rod (504) and the movable plate (401) are arranged on the same horizontal line.

5. The anti-loosening head fixing device according to claim 4, characterized in that: One side of the liquid storage box (503) is arranged in an arc shape, and an L-shaped plate (505) is slidably connected to the side of the liquid storage box (503), and the bottom of the L-shaped plate (505) is in contact with the second rotating disk (405).

6. The anti-loosening head fixing device according to claim 2, characterized in that: The threads of the first screw rod (302) and the second screw rod (305) are arranged opposite to each other, the tops of the first threaded block (303) and the second threaded block (306) connected by threads on the outer annular surfaces of the first screw rod (302) and the second screw rod (305) are both in contact with the side surface of the head placement plate (2), and the two ends of the first screw rod (302) and the second screw rod (305) that are away from each other are rotatably connected to the bottom of the medical bed (1) through a fixing plate.

7. The anti-loosening head fixing device according to claim 3, characterized in that: The friction rotating shaft (403) is provided with a plurality of groups along the surface of the limit box (406), and a plurality of groups of massage blocks (404) are provided on the surface of the friction rotating shaft (403). A second rotating disk (405) fixedly connected to one end of the friction rotating shaft (403) away from the limit box (406) is provided with a plurality of groups of second rotating disks (405) along the friction rotating shaft (403).

8. The anti-loosening head fixing device according to claim 4, characterized in that: The guide tube (501), the piston cylinder (502), the liquid storage box (503), the piston rod (504) and the L-shaped plate (505) are symmetrically arranged in two groups along the transverse center of the medical bed (1); the liquid storage box (503) is slidable on the surface of the medical bed (1); and the guide tube (501) is made of soft material.

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