Fixing device for operation

Abstract

The invention discloses a fixing device for surgery, and belongs to the technical field of medical instruments. The surgical instrument fixing device comprises a head supporting plate detachably installed at one end of a bed body and further comprises a pair of head clamping pieces, each head clamping piece comprises an arc-shaped clamping plate, a pushing piece and a plurality of abutting pieces, each arc-shaped clamping plate is provided with a cavity, each abutting piece slides towards the head of a patient along a sliding groove, a pressure adjusting piece is arranged in each cavity, and the pushing pieces are arranged on the pushing pieces. The pressure adjusting part comprises an adjusting assembly, a pressing plate and a plurality of bearing plates, the bearing plates are connected with the abutting parts in a one-to-one correspondence mode through connecting rods, the intervals between the bearing plates and the pressing plate are different, the arc-shaped clamping plate is equally divided into the first clamping plate, the second clamping plate and the third clamping plate, and the abutting parts sliding independently are arranged on the clamping plates; and a gradient type pressure transmission system is formed by matching with a differential interval bearing plate structure arranged in the cavity, and the problem that the local pressure intensity is too large due to synchronous pressure application of a traditional device is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a fixation device for surgery. Background Art

[0002] Neurosurgery is a minimally invasive surgical technique that uses catheters and other interventional devices to enter the nervous system through vascular or non-vascular pathways to diagnose and treat lesions.

[0003] During neurosurgery, the patient's head must remain stable, as even the slightest movement can increase surgical risks. For example, when surgical instruments are operating within blood vessels, head shaking can cause the instruments to accidentally puncture the vessel wall. Furthermore, medical staff must spend a lot of effort finding a suitable fixation method during surgery, so a head fixation device is needed to assist with fixation. Doctors and nurses no longer have to worry about the patient's head moving during the operation, allowing them to focus more on the surgical steps and instrument operation, thereby improving the work efficiency of the entire surgical team and reducing surgical interruptions or operational errors caused by head position issues.

[0004] Existing head fixation devices used in neurosurgery usually use clamping plates to fix the patient's head on both sides, forehead or mandible. However, due to the irregular shape of the human head and individual differences between different patients, the contact area between the clamping plate and the patient's head is small. When the clamping plate moves, it will first contact the patient's face. Usually, a push rod is set in the clamping plate for advancement. This method will cause uneven pressure distribution when the patient's head needs to be clamped, resulting in the pressure in the middle of the clamping plate being greater than the pressure at both ends of the clamping plate. The pressure is too concentrated in the middle of the clamping plate, causing discomfort to the patient. Summary of the Invention

[0005] The purpose of the present invention is to overcome the problems in the prior art and provide a surgical fixation device to avoid the problem of excessive local pressure caused by synchronous pressure application in traditional devices.

[0006] The present invention provides a surgical fixation device, comprising a pair of head clamps symmetrically fixedly arranged on the head support plate, the head clamps comprising an arc-shaped clamping plate, a pusher and a plurality of abutting members, the pusher being arranged horizontally, the pusher end being connected to the middle position of the outer side of the arc-shaped clamping plate, the arc-shaped clamping plate being provided with a cavity, the arc-shaped side of the arc-shaped clamping plate being provided with a one-to-one corresponding sliding groove for abutting the plurality of abutting members against the patient's head and face, a pressure regulating member being provided in the cavity, the pressure regulating member comprising an regulating assembly, a pressure plate and a supporting plate group, the adjusting component is arranged on the arc-shaped clamping plate, and its adjusting end abuts against the pressure plate, so that the pressure plate slides in the horizontal direction, the supporting plate group includes a first clamping plate, a second clamping plate and a third clamping plate arranged in sequence from top to bottom, the first clamping plate, the second clamping plate and the third clamping plate are all connected to the abutting member one by one through a connecting rod, and the distances between the first clamping plate, the second clamping plate and the third clamping plate and the pressure plate are different, the distance between the second clamping plate and the pressure plate is the largest, and the distance between the third clamping plate and the pressure plate is the smallest.

[0007] Preferably, the abutment member includes an arc block, a plurality of springs and a flexible fitting pad, the arc block is fixedly connected to the supporting plate through the connecting rod, one end of the plurality of springs is fixedly set in the arc block and is arranged along the sliding direction of the arc block, and the other end is fixedly connected to the flexible fitting pad.

[0008] Preferably, the propulsion member includes a support frame, a first adjusting screw, a first rotating block and a telescopic rod. The support frame is fixedly arranged on the head support plate. The first adjusting screw is arranged horizontally, and the thread passes through the support frame. One end is rotatably connected to the arc clamping plate, and the other end is fixedly connected to the first rotating block. A pair of telescopic rods are provided, and one end of the pair of telescopic rods is fixedly connected to the arc clamping plate, and the other end is fixedly connected to the support frame.

[0009] Preferably, the adjusting assembly includes a connecting sleeve, an adjusting sleeve, a ring and an adjusting rod, one end of the connecting sleeve is fixedly connected to the first adjusting screw, and the other end is rotatably connected to the arc-shaped clamping plate, a spiral line is provided on the outer side of the connecting sleeve, the adjusting sleeve is threadedly sleeved on the connecting sleeve, an annular groove is provided on the adjusting sleeve, the ring is sleeved in the annular groove, the ring is rotatably connected to the adjusting sleeve, a pair of adjusting rods are provided, the pair of adjusting rods are symmetrically arranged, one end of each is fixedly connected to the ring, and the other end is fixedly connected to the pressure plate.

[0010] Preferably, a mounting plate is vertically fixedly installed on one side of the bed by mounting bolts, the mounting plate is fixedly connected to a fixing plate on a side away from the bed, and the head support plate is hingedly connected, an angle adjustment member is provided between the fixing plate and the head support plate, and a head bearing groove is opened in the middle of the head support plate, and the bearing groove is used to support the back of the patient's head.

[0011] Preferably, a neck support pillow is fixedly provided on the head support plate, the neck support pillow is concave in the middle and convex at both ends, an airbag is provided in the neck support pillow, an air inlet pipe is inserted into the air inlet end of the airbag, and one end of the air inlet pipe is connected to an air pump.

[0012] Preferably, the angle adjustment member includes a second adjusting screw, a moving block and a hinged rod, a sliding groove is provided on the fixed plate, the second adjusting screw is arranged in the sliding groove, one end is rotatably connected to the fixed plate, and the other end is fixedly connected to the rotating rod, the rotating rod rotates through the fixed plate and is fixedly connected to the second rotating block, the moving block is slidably arranged along the sliding groove, and is threadedly sleeved on the second adjusting screw, one end of the hinged rod is hinged to the moving block, and the other end is hinged to the bottom of the head support plate.

[0013] Preferably, the support frame includes a first support tube fixedly arranged perpendicular to the head support plate, a second support tube is slidably inserted into the first support tube, the second support tube and the first support tube are both horizontally provided with a plurality of through-limiting holes along their height direction, at least one limit rod is inserted into the limit hole, a load-bearing rod is fixedly connected to the top of the second support tube, and the first adjusting screw thread passes through the load-bearing rod.

[0014] Preferably, it also includes a mandibular arc support plate and a forehead arc support plate, the mandibular arc support plate and the forehead arc support plate are both installed through adjustment belts, and the head supporting plate and the arc clamping plate are both provided with adjustment buckles for connecting the adjustment belts.

[0015] Compared with the prior art, the present invention has the following advantages: a surgical fixation device of the present invention divides an arc-shaped clamping plate into a first clamping plate, a second clamping plate, and a third clamping plate, and provides an independently sliding abutment on each clamping plate. In combination with the differentially spaced bearing plate structure provided in the cavity, the second clamping plate is at the greatest distance from the bearing plate, and the third clamping plate is at the smallest distance from the bearing plate, thereby forming a gradient pressure transmission system. When the pusher pushes the arc-shaped clamping plate to move as a whole, during the initial contact phase, the third clamping plate, because the bearing plate and the pressure plate of the third clamping plate are at the smallest distance, first contacts the patient's mandibular region, which, as the main load-bearing part of the head, receives priority support. During the pressure transmission phase, as the pusher continues to apply pressure, the bearing plate at the first clamping plate end finally contacts the pressure plate, achieving flexible fixation of the forehead region. Finally, the bearing plate at the second clamping plate end begins to contact the pressure plate, transmitting pressure to the zygomatic region. The larger spacing design here allows for progressively enhanced pressure transmission. The phased pressure application mechanism avoids the problem of excessively concentrated pressure in traditional synchronous pressure application, which can cause discomfort to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic structural diagram of the head clamping part, support frame and adjustment assembly of the present invention.

[0018] Figure 3 It is a schematic diagram of the matching structure of the inner pressure plate and the bearing plate of the arc-shaped clamping plate of the present invention.

[0019] Figure 4 It is a schematic diagram of the abutment structure of the present invention.

[0020] Figure 5 It is a schematic diagram of the overall second viewing angle structure of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the angle adjustment member of the present invention.

[0022] Explanation of reference numerals: 1, head support plate; 2, head clamping member; 21, arc-shaped clamping plate; 22, pushing member; 221, support frame; 2211, first support tube; 2212, second support tube; 2213, limiting rod; 2214, limiting hole; 2215, bearing rod; 222, first adjusting screw; 223, first rotating block; 224, telescopic rod; 23, abutment member; 231, arc-shaped block; 232, spring; 233 , flexible fitting pad; 3. Pressure adjustment member; 31. Adjustment assembly; 311. Connecting sleeve; 312. Adjustment sleeve; 313. Ring; 314. Adjustment rod; 32. Pressure plate; 33. Load-bearing plate; 4. Mounting plate; 5. Fixed plate; 6. Angle adjustment member; 61. Second adjusting screw; 62. Moving block; 63. Articulated rod; 64. Slide; 65. Second rotating block; 66. Rotating rod; 7. Head bearing groove; 8. Neck bearing pillow. DETAILED DESCRIPTION

[0023] The following is combined with Figures 1 to 6 In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described 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. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs.

[0024] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual scale. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only structural schematic diagrams.

[0025] The present invention provides a surgical fixation device, such as Figures 1 to 4As shown, it includes a head support plate 1 that can be detachably mounted on one end of the bed body, a pair of head clamping members 2 symmetrically fixedly arranged on the head support plate 1, the head clamping member 2 includes an arc-shaped clamping plate 21, a pushing member 22 and a plurality of abutting members 23, the pushing member 22 is arranged horizontally, and the pushing end of the pushing member 22 is connected to the middle position of the outer side of the arc-shaped clamping plate 21, the arc-shaped clamping plate 21 is provided with a cavity, and the arc-shaped side of the arc-shaped clamping plate 21 is provided with a one-to-one corresponding sliding groove for abutting the plurality of abutting members 23 against the patient's head and face, and a pressure regulating member 3 is provided in the cavity. The joint assembly 31, the pressure plate 32 and the bearing plate group 33, the adjustment assembly 31 is arranged on the arc-shaped clamping plate 21, and its adjustment end abuts against the pressure plate 32, so that the pressure plate 32 slides in the horizontal direction, and the bearing plate group 33 includes a first clamping plate, a second clamping plate and a third clamping plate arranged in sequence from top to bottom, and the first clamping plate, the second clamping plate and the third clamping plate are all connected to the abutting member 23 one by one through a connecting rod, and the distances between the first clamping plate, the second clamping plate and the third clamping plate and the pressure plate 32 are different, the distance between the second clamping plate and the pressure plate 32 is the largest, and the distance between the third clamping plate and the pressure plate 32 is the smallest.

[0026] In this embodiment, by dividing the bearing plate group 33 into the first clamping plate, the second clamping plate and the third clamping plate, and providing an independently sliding abutment 23 on each clamping plate, combined with the differentiated spacing bearing plate group 33 structure provided in the cavity, the distance between the second clamping plate and the pressure plate 32 is the largest, and the distance between the third clamping plate and the pressure plate 32 is the smallest, thereby forming a gradient pressure transmission system. When the propulsion member 22 pushes the arc-shaped clamping plate 21 to move as a whole, the initial contact stage: because the distance between the third splint and the pressure plate 32 is the smallest, it first contacts the patient's mandibular area, and this area, as the main load-bearing part of the head, gets priority in obtaining basic support; the pressure transmission stage: as the propulsion member 22 continues to apply pressure, the first splint finally contacts the pressure plate 32 to achieve flexible fixation of the forehead area, and finally the second splint begins to contact the pressure plate 32 to transmit the pressure to the zygomatic area. The larger spacing design here makes the pressure transmission gradually enhanced, and the staged pressure mechanism avoids the problem of excessive concentration of pressure in traditional synchronous pressure that makes patients feel uncomfortable. Through the differentiated spacing between the upper, middle and lower segmented bearing plates and the pressure plate, a stepped pressure transmission is formed. The lower section contacts first to bear the main supporting force, the upper forehead area flexibly delays pressure, and the middle zygomatic area gradually increases pressure, which completely solves the problem of local pressure concentration caused by synchronous pressure of traditional devices.

[0027] Preferably, Figure 4 As shown, the abutment member 23 includes an arc block 231, a plurality of springs 232 and a flexible fitting pad 233. The arc block 231 is fixedly connected to the supporting plate group 33 through a connecting rod. One end of the plurality of springs 232 is fixedly set in the arc block 231 and is set along the sliding direction of the arc block 231. The other end is fixedly connected to the flexible fitting pad 233.

[0028] In this embodiment, each abutment 23 internally integrates a composite buffer system consisting of an arc block 231, a spring group 232 and a flexible fitting pad 233. First-level buffering: the flexible fitting pad 233 uses medical silicone material to directly contact the skin; second-level buffering: 6 groups of coil springs 232 form a distributed buffer layer inside the arc block 231; third-level buffering: the gap between the connecting rod and the load-bearing plate group 33 provides the ultimate mechanical insurance; this three-level buffering system can attenuate sudden external force impacts, and cooperate with the pressure sensor for real-time monitoring to ensure that the pressure value is always maintained in a safe range. The medical silicone pad adapts to the facial contour, increases the contact area, and the distributed energy absorption of multiple springs offsets the sudden external force impact. The mechanical gap provides the ultimate displacement tolerance, adapts to individual differences in different head shapes, and makes the patient's head more stable.

[0029] Preferably, Figures 1 to 3 As shown, the propulsion member 22 includes a support frame 221, a first adjusting screw 222, a first rotating block 223 and a telescopic rod 224. The support frame 221 is fixedly set on the head support plate 1, and the first adjusting screw 222 is horizontally set. The thread passes through one end of the support frame 221 and is rotatably connected to the arc clamping plate 21, and the other end is fixedly connected to the first rotating block 223. A pair of telescopic rods 224 are set, and one end of the pair of telescopic rods 224 is fixedly connected to the arc clamping plate 21, and the other end is fixedly connected to the support frame 221.

[0030] In this embodiment, the propulsion member 22 adopts a precision ball screw in combination with a double telescopic guide rod, which makes the positioning more precise. When in use, the medical staff rotates the first rotating block 223 to drive the first adjusting screw 222 to rotate, and the arc-shaped clamping plate 21 is pushed forward under the action of a pair of telescopic rods 224. The arc-shaped clamping plate 21 is fixed to the patient's face through a pair of arc-shaped clamping plates 21. The precise adjustment in the above manner makes the movement of the arc-shaped clamping plate 21 more precise and stable, and better fits the patient's face and head, avoiding discomfort to the patient.

[0031] Preferably, Figures 1 to 3 As shown, the adjustment assembly 31 includes a connecting sleeve 311, an adjusting sleeve 312, a ring 313 and an adjusting rod 314. One end of the connecting sleeve 311 is fixedly connected to the first adjusting screw 222, and the other end is rotatably connected to the arc clamping plate 21. A spiral line is provided on the outer side of the connecting sleeve 311, and the adjusting sleeve 312 is threadedly sleeved on the connecting sleeve 311. An annular groove is provided on the adjusting sleeve 312, and the ring 313 is sleeved in the annular groove. The ring 313 is rotatably connected to the adjusting sleeve 312, and a pair of adjusting rods 314 are provided. The pair of adjusting rods 314 are symmetrically arranged, one end of each is fixedly connected to the ring 313, and the other end is fixedly connected to the pressure plate 32.

[0032] In this embodiment, the arc-shaped clamping plate 21 is initially pushed and initially limited by the propulsion member 22. At this time, the medical staff rotates the set adjusting sleeve 312. Because its threaded sleeve is mounted on the connecting sleeve 311, when the connecting sleeve 311 rotates, it will move along the direction of the first adjusting screw 222. Because the ring 313 is rotated and embedded in the annular groove, the set pressure plate 32 is pushed with the assistance of a pair of adjusting rods 314. The set pressure plate 32 pushes the bearing plate group 33. The threaded design of the connecting sleeve 311 causes the adjusting sleeve 312 to produce a certain axial displacement every 15° rotation. The rotational matching structure of the ring 313 and the annular groove ensures that the pressure is transmitted without jamming. The symmetrical layout of the double adjusting rods 314 forms a torque, which effectively eliminates lateral overload.

[0033] Preferably, Figures 1 to 5 As shown, a mounting plate 4 is vertically fixed on one side of the bed by mounting bolts, a fixing plate 5 is fixedly connected to the side of the mounting plate 4 away from the bed, and a head support plate 1 is hingedly connected, an angle adjustment member 6 is provided between the fixing plate 5 and the head support plate 1, and a head bearing groove 7 is opened in the middle of the head support plate 1, which is used to support the back of the patient's head.

[0034] In this embodiment, the mounting plate 4 is installed on one side of the bed by connecting bolts. The mounting plate 4 supports the fixing plate 5. There is a gap between the fixing plate 5 and the head support plate 1 for storing the angle adjustment member 6. A head bearing groove 7 is provided in the head support plate 1, and the head bearing groove 7 provides a preliminary limit for the back of the patient's head.

[0035] Preferably, Figures 1 to 5 As shown, a neck support pillow 8 is fixedly provided on the head support plate 1. The neck support pillow 8 is concave in the middle and convex at both ends. An airbag is provided in the neck support pillow 8. An air intake pipe is inserted into the air intake end of the airbag, and one end of the air intake pipe is connected to an air pump.

[0036] In this embodiment, the head support plate 1 supports the neck support pillow 8. The neck support pillow 8 adopts a bionic design, and the middle concave area accurately matches the physiological curvature of the C3-C5 vertebrae. The head support pillow is adjusted in real time through the air intake pipe and air pump.

[0037] Preferably, Figures 1 to 5 As shown, the angle adjustment member 6 includes a second adjusting screw 61, a moving block 62 and a hinged rod 63. A sliding groove 64 is provided on the fixed plate 5. The second adjusting screw 61 is arranged in the sliding groove 64, one end of which is rotatably connected to the fixed plate 5, and the other end is fixedly connected to the rotating rod 66. The rotating rod 66 rotates through the fixed plate 5 and is fixedly connected to the second rotating block 65. The moving block 62 is slidably arranged along the sliding groove 64 and is threadedly sleeved on the second adjusting screw 61. One end of the hinged rod 63 is hinged to the moving block 62, and the other end is hinged to the bottom of the head support plate 1.

[0038] In this embodiment, the fixed plate 5 supports the second adjusting screw 61, and the second adjusting screw 61 supports the movable block 62. When the angle of the head support plate 1 needs to be adjusted, the medical staff only needs to rotate the second rotating block 65 so that it drives the second adjusting screw 61 to rotate through the rotating rod 66. The movable block 62 will slide under the limit of the slide groove 64, and will lift the head support plate 1 under the action of the hinge rod 63, so that the head support plate 1 hinged to the mounting plate 4 will rotate.

[0039] Preferably, Figures 1 to 3 As shown, the support frame 221 includes a first support tube 2211 fixedly arranged vertically on the head support plate 1, a second support tube 2212 is slidably inserted into the first support tube 2211, and the second support tube 2212 and the first support tube 2211 are horizontally provided with a plurality of through limiting holes 2214 along their height direction, and at least one limiting rod 2213 is inserted in the limiting hole 2214, a load-bearing rod 2215 is fixedly connected to the top of the second support tube 2212, the first adjusting screw 222 is threaded through the load-bearing rod 2215, and the rotating rod 66 has a built-in locking piece.

[0040] In this embodiment, the head support plate 1 supports the first support tube 2211, and pulls the second support tube 2212 according to the usage. After the second support tube 2212 lifts the load-bearing rod 2215 to a suitable height, the limit rod 2213 is inserted into the limit rod 2213 to fix the second support tube 2212 and the first support tube 2211. The hinge mechanism is driven by the second adjusting screw 61, so that the head support plate 1 can be tilted by 10° to 30° to meet the different access requirements through the femoral artery or radial artery.

[0041] Preferably, Figures 1 to 6 As shown, it also includes a mandibular arc support plate and a forehead arc support plate. The mandibular arc support plate and the forehead arc support plate are both installed through adjustment belts. The head supporting plate 33 and the arc clamping plate 21 are both provided with adjustment buckles for connecting the adjustment belts. In this embodiment, the mandibular arc support plate and the forehead arc support plate are not shown in the figure.

[0042] In this embodiment, the patient's head is further limited by the mandibular arc support plate and the forehead arc support plate. The adjustment belt in this embodiment is adjustable and not elastic. The mandibular arc support plate and the forehead arc support plate are made of thermoplastic memory material, which can be adaptively shaped at a body temperature of 38°C, and the contact area is increased by 2.3 times. The adjustment buckle adopts a quick-release interface.

[0043] The method of using the surgical instrument fixing device of the present invention is as follows: The mounting plate 4 is mounted on one side of the bed by connecting bolts. The patient lies on the bed and places the back of the head in the head placement slot. The second support tube 2212 is pulled according to the usage. After the second support tube 2212 lifts the bearing rod 2215 to a suitable height, the limiting rod 2213 is inserted into the limiting rod 2213 to fix the second support tube 2212 and the first support tube 2211; The medical staff rotates the first rotating block 223 to drive the first adjusting screw 222 to rotate, and the arc-shaped clamping plate 21 is pushed forward under the action of the pair of telescopic rods 224, and the arc-shaped clamping plate 21 is fixed to the patient's face through the pair of arc-shaped clamping plates 21; The medical staff rotates the adjustment sleeve 312, which is threadedly sleeved on the connecting sleeve 311. When the connecting sleeve 311 rotates, it moves in the direction of the first adjustment screw 222. As the collar 313 rotates and is embedded in the annular groove, it pushes the pressure plate 32 with the help of a pair of adjustment rods 314, and the pressure plate 32 pushes the supporting plate assembly 33. Each abutment member 23 internally integrates a composite buffering system consisting of an arc block 231, a group of springs 232 and a flexible fitting pad 233: first-level buffering: the flexible fitting pad 233 is made of medical silicone material and directly contacts the skin; second-level buffering: 6 groups of coil springs 232 form a distributed buffering layer inside the arc block 231; third-level buffering: the clearance between the connecting rod and the bearing plate 33 provides the ultimate mechanical insurance; this three-level buffering system can attenuate sudden external force impacts, and cooperate with the pressure sensor for real-time monitoring to ensure that the pressure value is always maintained in a safe range.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A surgical fixation device comprising a head support plate detachably mounted on one end of a bed, characterized in that: Also includes: A pair of head clamping members are provided and symmetrically fixedly arranged on the head support plate. The head clamping members include an arc-shaped clamping plate, a pusher and a plurality of abutment members. The pusher member is arranged horizontally, and the pusher end of the pusher member is connected to the middle position of the outer side of the arc-shaped clamping plate. The arc-shaped clamping plate is provided with a cavity, and the arc-shaped side of the arc-shaped clamping plate is provided with a one-to-one corresponding sliding groove for the plurality of abutment members to abut against the patient's head and face; The pressure regulating member is arranged in the cavity, and the pressure regulating member includes an adjusting component, a pressure plate and a bearing plate group. The adjusting component is arranged on the arc-shaped clamping plate, and its adjusting end abuts against the pressure plate, so that the pressure plate slides in the horizontal direction. The bearing plate group includes a first clamping plate, a second clamping plate and a third clamping plate arranged in sequence from top to bottom. The first clamping plate, the second clamping plate and the third clamping plate are all connected to the abutting member one by one through a connecting rod, and the distances between the first clamping plate, the second clamping plate and the third clamping plate and the pressure plate are different. The distance between the second clamping plate and the pressure plate is the largest, and the distance between the third clamping plate and the pressure plate is the smallest.

2. A surgical fixation device according to claim 1, characterized in that: The abutment member includes an arc block, several springs and a flexible fitting pad. The arc block is fixedly connected to the supporting plate through the connecting rod. One end of each of the springs is fixedly set in the arc block and is set along the sliding direction of the arc block, and the other end is fixedly connected to the flexible fitting pad.

3. The surgical fixation device according to claim 1, wherein: The propulsion member includes a support frame, a first adjusting screw, a first rotating block and a telescopic rod. The support frame is fixedly arranged on the head support plate. The first adjusting screw is arranged horizontally, and the thread passes through the support frame. One end is rotatably connected to the arc clamping plate, and the other end is fixedly connected to the first rotating block. A pair of telescopic rods are provided, and one end of the pair of telescopic rods is fixedly connected to the arc clamping plate, and the other end is fixedly connected to the support frame.

4. A surgical fixation device according to claim 3, characterized in that: The adjusting assembly includes a connecting sleeve, an adjusting sleeve, a collar and an adjusting rod, one end of the connecting sleeve is fixedly connected to the first adjusting screw, and the other end is rotatably connected to the arc-shaped clamping plate, a spiral line is provided on the outer side of the connecting sleeve, the adjusting sleeve is threadedly sleeved on the connecting sleeve, an annular groove is provided on the adjusting sleeve, the collar is sleeved in the annular groove, the collar is rotatably connected to the adjusting sleeve, a pair of adjusting rods are provided, and the pair of adjusting rods are symmetrically arranged, one end of each is fixedly connected to the collar, and the other end is fixedly connected to the pressure plate.

5. The surgical fixation device according to claim 1, wherein: A mounting plate is vertically fixed to one side of the bed body by mounting bolts, and a fixing plate is fixedly connected to the side of the mounting plate away from the bed body, and the head support plate is hingedly connected thereto. An angle adjustment member is provided between the fixing plate and the head support plate, and a head bearing groove is provided in the middle of the head support plate, and the bearing groove is used to support the back of the patient's head.

6. The surgical fixation device according to claim 3, wherein: A neck support pillow is fixedly provided on the head support plate, the neck support pillow is concave in the middle and convex at both ends, an air bag is provided in the neck support pillow, an air inlet pipe is inserted into the air inlet end of the air bag, and one end of the air inlet pipe is connected to an air pump.

7. The surgical fixation device according to claim 5, wherein: The angle adjustment member includes a second adjusting screw, a moving block and a hinged rod, the fixed plate is provided with a sliding groove, the second adjusting screw is arranged in the sliding groove, one end is rotatably connected to the fixed plate, and the other end is fixedly connected to the rotating rod, the rotating rod rotates through the fixed plate and is fixedly connected to the second rotating block, the moving block is slidably arranged along the sliding groove, and is threadedly sleeved on the second adjusting screw, one end of the hinged rod is hinged to the moving block, and the other end is hinged to the bottom of the head support plate.

8. The surgical fixation device according to claim 3, wherein: The support frame includes a first support tube fixedly arranged perpendicular to the head support plate, a second support tube is slidably inserted into the first support tube, the second support tube and the first support tube are both horizontally provided with a plurality of through-limiting holes along their height direction, at least one limiting rod is inserted into the limiting hole, a bearing rod is fixedly connected to the top of the second support tube, and the first adjusting screw thread passes through the bearing rod.

9. The surgical fixation device according to claim 1, wherein: It also includes a mandibular arc support plate and a forehead arc support plate, both of which are installed through adjustment belts, and both the head support plate and the arc clamping plate are provided with adjustment buckles for connecting the adjustment belts.

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