Head fixing support for ischemic cerebrovascular disease operation

Abstract

The invention relates to the technical field of cerebrovascular disease operations, in particular to a head fixing support for ischemic cerebrovascular disease operations. Comprising a supporting table and further comprises electric push rods I, a supporting plate, an air bag, an air extracting pump, a connecting pipe and the like, the electric push rods I are symmetrically arranged on the supporting table, the supporting plate is connected between telescopic rods of the electric push rods I, and the air bag is installed at the top end of the supporting plate and used for supporting the head of a patient; two ends of the connecting pipe are respectively communicated with the air bag and the air extracting pump. Through cooperation of an electric push rod I, a supporting plate and an air bag, the head of a patient can be supported through the air bag, so that the height of the head and neck of the patient is limited, and through cooperation of a movable frame, a movable frame, a rotating block, a gear, a connecting block, a threaded rod, a clamping plate, an adjusting mechanism and a limiting mechanism, the head of the patient can be fixed; therefore, the application range is expanded, and medical staff can perform an operation on a patient conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of cerebrovascular disease surgery, and in particular to a head fixing bracket used for ischemic cerebrovascular disease surgery. Background Art

[0002] Ischemic cerebrovascular disease, as a type of neurological disease with a high incidence worldwide, is mainly caused by insufficient blood supply to brain tissue due to blockage of cerebral blood vessels, which in turn causes brain cell damage or even death. This disease can cause serious consequences such as cerebral infarction, posing a major threat to the patient's quality of life and life safety. In the process of treating ischemic cerebrovascular disease, timely and accurate surgical intervention is one of the key means to restore cerebral blood flow and reduce brain damage. In order to ensure the accuracy and safety of surgical operations, the design and application of the head fixation bracket as an important auxiliary medical device are particularly critical.

[0003] The patent with patent publication number CN214415195U discloses a head surgery fixation bracket, which can use a support rod to support the patient's head and neck, so that the patient's head and neck are raised, and the height of the patient's head and neck is fixed by pressing the end of the support rod against the positioning column; however, during use, the above patent only fixes the height of the patient's head and neck, and does not have a structure for fixing the patient's head, resulting in a small scope of application of the above patent when used, and there are certain defects. Summary of the invention

[0004] In view of this, the present invention provides a head fixation bracket for ischemic cerebrovascular disease surgery, which can solve the disadvantage that the existing head surgery fixation bracket, when in use, only fixes the patient's head and neck height but does not have a structure for fixing the patient's head, resulting in a small scope of application.

[0005] The technical scheme is as follows: A head fixing bracket for ischemic cerebrovascular disease surgery includes a support platform, an electric push rod I, a support plate, an air bag, an air pump, a connecting pipe, a movable frame, a movable frame, a rotating block, a gear, a connecting block, a threaded rod, a splint, an adjustment mechanism and a limiting mechanism. The electric push rod I is symmetrically arranged on the support platform, the support plate is connected between the telescopic rods of the electric push rod I, the air bag is installed on the top of the support plate, the air bag is used to support the patient's head, the air pump is installed on the support plate, and the two ends of the connecting pipe are respectively connected to the air bag and the air pump. Two movable frames are slidably arranged on the support platform, the movable frame is slidably arranged on the movable frame, the rotating block is rotatably arranged on the movable frame, the gear is rotatably arranged on the rotating block, the connecting block is connected to the gear, the threaded rod is threadedly arranged on the connecting block on one side, the splint is rotatably arranged on the connecting block on the other side, and the threaded rod and the splint are used to fix the patient's head, the adjustment mechanism is used to drive the movable frame to move on the support platform, and the limiting mechanism is used to limit the movable frame, the rotating block and the gear.

[0006] Preferably, the adjustment mechanism includes a reduction motor and a bidirectional screw. The reduction motor is installed on a support platform. The bidirectional screw is rotatably connected to the support platform. The two movable frames are respectively threadedly connected to the two ends of the bidirectional screw. The end of the bidirectional screw is connected to the output shaft of the reduction motor.

[0007] Preferably, the limiting mechanism comprises a cylinder I and a friction block, the cylinder I is mounted on the movable frame, the friction block is connected to the telescopic rod of the cylinder I, and the friction block is used to limit the movable frame.

[0008] Preferably, the limiting mechanism also includes a cylinder II and a limiting strip, wherein the cylinder II is mounted on the movable frame, the limiting strips are arranged at annular intervals on the rotating block, and the limiting grooves are arranged at annular intervals on the telescopic rod of the cylinder II, and the number of the limiting strips is the same as the number of the limiting grooves.

[0009] Preferably, the limiting mechanism also includes a fixed ring, a rotating ring and a gear block, the fixed ring is mounted on the rotating block, the rotating ring is rotatably connected to the telescopic rod of cylinder II, the gear block is connected to the rotating ring, and the gear block is slidably connected to the fixed ring, and the gear block is used to mesh with the gear.

[0010] As a preference, a protective mechanism is also included, which includes a connecting frame, a servo motor, an arc-shaped fixed block, an arc-shaped limit block, a bolt, a feeding shaft, a feeding shaft, a sterile membrane and a baffle I. The two connecting frames are connected to the bottom end of the support plate, the servo motor is installed on the connecting frame on one side, the two connecting frames are symmetrically provided with arc-shaped fixed blocks, the arc-shaped limit block is rotatably installed on the arc-shaped fixed block, the bolt is threadedly installed between the arc-shaped fixed block and the arc-shaped limit block, the feeding shaft is arranged in a connecting frame not connected to the servo motor, and the feeding shaft is in the connecting frame. The feeding shaft is arranged in a connecting frame connected to the servo motor, and the feeding shaft is between the arc-shaped fixing block and the arc-shaped limiting block in the connecting frame. An L-shaped structure is arranged at one end of the feeding shaft close to the servo motor, and an L-shaped structure is arranged on the output shaft of the servo motor. The L-shaped structure on the servo motor contacts the L-shaped structure on the feeding shaft. Two ends of the sterile film are respectively connected to the feeding shaft and the feeding shaft, and the sterile film passes over the airbag. Baffle I is arranged on the supporting plate, and baffle I shields the connecting frame connected to the servo motor.

[0011] Preferably, the protective mechanism also includes a baffle II, a liquid storage frame and a sponge rod. The baffle II is arranged on the support plate, and the baffle II shields the connection frame not connected to the servo motor. The liquid storage frame is installed on the baffle II. The liquid storage frame is used to store disinfectant. The liquid storage frame is provided with liquid outlets spaced apart. The sponge rod is rotatably installed on the baffle II. The sponge rod is in contact with the liquid outlet of the liquid storage frame, and the sponge rod is in contact with the sterile membrane. The sponge rod is used to apply the disinfectant on the surface of the sterile membrane.

[0012] As a preference, a moving mechanism is also included, which includes an electric push rod II and a universal ball. The electric push rod II is arranged at intervals inside the support platform, and a universal ball is rotatably arranged on the telescopic rod of the electric push rod II.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention can support the patient's head by using the airbag through the cooperation of the electric push rod I, the support plate and the airbag, thereby limiting the height of the patient's head and neck, and can also fix the patient's head through the cooperation of the movable frame, the movable frame, the rotating block, the gear, the connecting block, the threaded rod, the splint, the adjusting mechanism and the limiting mechanism, thereby expanding the scope of application and making it easier for medical staff to perform surgery on the patient.

[0014] 2. The present invention can provide a layer of sterile film above the airbag by providing a protective mechanism. The sterile film can prevent blood from the patient's head from falling onto the airbag, and prevent blood from remaining on the airbag and affecting the use of the next patient, thereby protecting the airbag. At the same time, the sterile film can prevent the patient's head from directly contacting the airbag, thereby preventing bacteria on the airbag from infecting the patient's head, thereby protecting the patient's head.

[0015] 3. The present invention is provided with a moving mechanism, which can utilize a universal ball to roll on the ground, thereby facilitating medical staff to push the support table to move to a designated position. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the air bag, the air pump and the connecting pipe of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the movable frame, cylinder I and friction block of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating block, gear and connecting block of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixed ring, the rotating ring and the gear block of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the cylinder II, the limiting strip and the limiting groove of the present invention.

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the protection mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the connection frame, servo motor and sterile membrane of the present invention.

[0025] Fig.10 For the present invention Fig. 9 Structural separation diagram.

[0026] Fig.11 It is a three-dimensional structural schematic diagram of the arc-shaped fixing block, the arc-shaped limiting block and the bolt of the present invention.

[0027] Fig.12 This is a structural separation diagram of the servo motor, loading shaft and unloading shaft of the present invention.

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure of the baffle II, the liquid storage frame and the sponge rod of the present invention.

[0029] Fig.14 It is a cross-sectional view of a sponge bar of the present invention.

[0030] Fig.15 It is a schematic diagram of the three-dimensional structure of the moving mechanism of the present invention.

[0031] Figure numbers: 1, support table, 2, electric push rod Ⅰ, 3, support plate, 4, air bag, 5, vacuum pump, 6, connecting pipe, 7, movable frame, 8, movable frame, 9, rotating block, 10, gear, 11, connecting block, 12, threaded rod, 13, splint, 14, reduction motor, 15, bidirectional screw, 16, cylinder Ⅰ, 17, friction block, 18, cylinder Ⅱ, 19, limit strip, 20, limit groove, 21, fixing ring, 22, rotating ring, 23, gear block, 24, connecting frame, 25, servo motor, 26, arc fixed block, 27, arc limit block, 28, bolt, 29, feeding shaft, 30, unloading shaft, 31, sterile membrane, 32, baffle Ⅰ, 33, baffle Ⅱ, 34, liquid storage frame, 341, liquid outlet, 35, sponge rod, 36, electric push rod Ⅱ, 37, universal ball. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Embodiment: A head fixation bracket for ischemic cerebrovascular disease surgery, see Figure 1-Figure 7 As shown, it includes a support platform 1; it also includes an electric push rod Ⅰ2, a support plate 3, an air bag 4, an air pump 5, a connecting pipe 6, a movable frame 7, a movable frame 8, a rotating block 9, a gear 10, a connecting block 11, a threaded rod 12, a clamping plate 13, an adjustment mechanism and a limiting mechanism; four electric push rods Ⅰ2 are symmetrically arranged on the top of the support platform 1; the support plate 3 is connected between the telescopic rods of the four electric push rods Ⅰ2; the air bag 4 is installed on the top of the support plate 3, and the air bag 4 is used to support the patient's head; the air pump 5 is installed on the left front side of the bottom of the support plate 3; the two ends of the connecting pipe 6 are respectively connected to the air bag 4 and the air pump 5, so that the air pump 5 can draw air into the air bag 4 through the connecting pipe 6, so that the air bag 4 is inflated; the two movable frames 7 are both slidingly arranged Placed on the upper side of the support table 1, the two movable frames 7 are distributed on the left and right; the movable frame 8 is slidably set on the movable frame 7; the rotating block 9 is rotatably set on the upper side of the movable frame 8; the gear 10 is rotatably set on the top of the rotating block 9, and the connecting block 11 is connected to the top of the gear 10; the threaded rod 12 is threadedly set on the upper side of the connecting block 11 on the left; the splint 13 is rotatably set on the connecting block 11 on the right, and the threaded rod 12 and the splint 13 are used to fix the patient's head; the adjustment mechanism is used to drive the movable frame 7 to move on the support table 1, so as to adjust the position of the movable frame 7, the movable frame 8, the rotating block 9, the gear 10, the connecting block 11, the threaded rod 12 and the splint 13; the limiting mechanism is used to limit the movable frame 8, the rotating block 9 and the gear 10.

[0034] See also Figure 3-Figure 7As shown, the adjustment mechanism includes a reduction motor 14, a bidirectional screw rod 15, a cylinder I 16, a friction block 17, a cylinder II 18, a limit strip 19, a fixed ring 21, a rotating ring 22 and a gear block 23; the reduction motor 14 is installed on the left side of the support platform 1; the bidirectional screw rod 15 is rotatably connected to the upper side of the support platform 1, and the two movable frames 7 are respectively threadedly connected to the left and right ends of the bidirectional screw rod 15, and the left end of the bidirectional screw rod 15 is connected to the output shaft of the reduction motor 14; the upper part of the two movable frames 7 away from each other is provided with a cylinder I 16; the friction block 17 is connected to the telescopic rod of the cylinder I 16, and the friction block 17 is driven by the cylinder I 16 to move to contact with the movable frame 8, so that the friction block 17 can limit the movable frame 8 by friction; the cylinder II 18 is installed on the upper front side of the movable frame 8; the front side of the rotating block 9 Limiting strips 19 are arranged at annular intervals at the lower part; limiting grooves 20 are arranged at annular intervals on the telescopic rod of cylinder II 18, and the number of limiting strips 19 is consistent with that of limiting grooves 20. By extending the telescopic rod of cylinder II 18, the limiting strip 19 can be inserted into the limiting groove 20, so that the telescopic rod of cylinder II 18 can limit the rotating block 9; the fixed ring 21 is installed at the lower front part of the rotating block 9; the rotating ring 22 is rotatably connected to the telescopic rod of cylinder II 18; the tooth block 23 is connected to the upper rear part of the rotating ring 22, and the tooth block 23 is slidably connected to the fixed ring 21. When the tooth block 23 moves with the telescopic rod of cylinder II 18, the tooth block 23 can mesh with the gear 10, so that the tooth block 23 limits the gear 10, and then limits the connecting block 11, the threaded rod 12 and the clamping plate 13.

[0035] When in use, the support platform 1 is moved to the side of the bed where the patient lies, and then the electric push rod Ⅰ2 is used to drive the support plate 3 to rise and fall, so as to adjust the height of the support plate 3 until the support plate 3 is flush with the bed, and then the air pump 5 is used to draw air into the airbag 4 through the connecting pipe 6 to expand the airbag 4, and then the patient's head is moved onto the airbag 4, so that the airbag 4 supports the patient's head, thereby limiting the height of the patient's head and neck, and then the movable frame 8 is pulled upward to adjust the height of the movable frame 8, the rotating block 9, the gear 10, the connecting block 11, the threaded rod 12 and the splint 13, so that the height of the threaded rod 12 and the splint 13 is flush with the patient's head, and the movable frame 8, the rotating block 9, the gear 10, the connecting block 11, the threaded rod 12 and the splint 13 are adjusted. After the height of the connecting block 11, the threaded rod 12 and the splint 13 is adjusted, the friction block 17 is driven by the cylinder Ⅰ16 to move to the side close to the movable frame 8, so that the friction block 17 contacts the movable frame 8, so that the friction block 17 uses the friction force to limit the movable frame 8, and then the movable frame 8 is released, and then the connecting block 11 is pulled to swing left and right, thereby driving the threaded rod 12, the splint 13, the gear 10 and the rotating block 9 to swing left and right, so as to adjust the direction of the threaded rod 12 and the splint 13, and at the same time, the connecting block 11 can be twisted to rotate, thereby driving the threaded rod 12, the splint 13 and the gear 10 to rotate, and then adjusting the direction of the threaded rod 12 and the splint 13 until the threaded rod 12 and the splint 13 are both facing the patient's head. The position that needs to be clamped is then controlled to extend the telescopic rod of the cylinder II 18 until the limit bar 19 is stuck in the limit groove 20, so that the telescopic rod of the cylinder II 18 limits the limit bar 19 and the rotating block 9, so that the threaded rod 12, the clamping plate 13, the gear 10 and the rotating block 9 can no longer swing. At the same time, when the telescopic rod of the cylinder II 18 is extended, it will drive the rotating ring 22 and the tooth block 23 to move backward, so that the tooth block 23 is engaged with the gear 10, so that the tooth block 23 is stuck with the gear 10, and then the tooth block 23 limits the gear 10, so that the threaded rod 12, the clamping plate 13 and the gear 10 can no longer rotate, and then the reduction motor 14 drives the bidirectional screw rod 15 to rotate, so that the bidirectional screw rod 15 drives the two movable frames 7 are moved toward the side close to each other, so as to adjust the positions of the movable frame 7, the movable frame 8, the rotating block 9, the gear 10, the connecting block 11, the threaded rod 12 and the splint 13, so that the threaded rod 12 and the splint 13 are moved toward the side close to the patient's head, until the threaded rod 12 and the splint 13 are in contact with the patient's head. When the patient's head is in contact with the splint 13, the patient's head will squeeze the splint 13 to rotate, so that the splint 13 can fit on the surface of the patient's head through rotation, and then twist the threaded rod 12 to rotate, so that the threaded rod 12 applies pressure to one side of the patient's head, until the threaded rod 12 and the splint 13 clamp the patient's head, so as to limit the patient's head, and then the medical staff can perform surgery on the patient's head; After the operation on the patient's head is completed, the threaded rod 12 is twisted to reverse and reset, so that the threaded rod 12 and the splint 13 release the patient's head, and then the reduction motor 14 drives the bidirectional screw rod 15 to reverse and reset, so that the bidirectional screw rod 15 drives the two movable frames 7 to move away from each other and reset, so that the threaded rod 12 and the splint 13 move away from the patient's head and reset, and then the threaded rod 12 and the splint 13 are separated from the patient's head, and then the telescopic rod of the cylinder II 18 is controlled to shorten, so that the limit bar 19 leaves the limit groove 20, so that the telescopic rod of the cylinder II 18 releases the limit bar 19 and the rotating block 9, and at the same time, the cylinder II 1 When the telescopic rod of 8 is shortened, the rotating ring 22 and the tooth block 23 will be driven to move forward and reset, so that the tooth block 23 is separated from the gear 10, thereby the tooth block 23 releases the gear 10, and then the tooth block 23 releases the limit on the gear 10, and then the friction block 17 is driven by the cylinder Ⅰ16 to move and reset to the side away from the movable frame 8, so that the friction block 17 is separated from the movable frame 8, thereby releasing the limit on the movable frame 8 by the friction block 17, and then the movable frame 8 will fall downward and reset under the action of gravity, and then the patient's head is moved away from the airbag 4, and then the air in the airbag 4 is extracted through the connecting pipe 6 by the vacuum pump 5, so that the airbag 4 shrinks, and finally the support table 1 can be moved away.

[0036] See also Figure 8-Figure 14As shown, a protective mechanism is also included, which includes a connecting frame 24, a servo motor 25, an arc-shaped fixing block 26, an arc-shaped limiting block 27, a bolt 28, a feeding shaft 29, a discharging shaft 30, a sterile membrane 31, a baffle I 32, a baffle II 33, a liquid storage frame 34 and a sponge stick 35; the two connecting frames 24 are both connected to the bottom end of the support plate 3, and the two connecting frames 24 are distributed front and back; the servo motor 25 is installed on the left side of the connecting frame 24 at the rear side; the two connecting frames 24 are both symmetrically provided with arc-shaped fixing blocks 26; the arc-shaped limiting block 27 is rotatably installed on the arc-shaped fixing block 26; the bolt 28 is threadedly installed on the arc-shaped fixing block 26 and the arc-shaped limit block 27; the feeding shaft 29 is placed in the front connecting frame 24, and the feeding shaft 29 is between the arc-shaped fixing block 26 and the arc-shaped limit block 27 in the front connecting frame 24, so that the arc-shaped fixing block 26 and the arc-shaped limit block 27 limit the feeding shaft 29; the unloading shaft 30 is placed in the rear connecting frame 24; and the unloading shaft 30 is between the arc-shaped fixing block 26 and the arc-shaped limit block 27 in the connecting frame 24, so that the arc-shaped fixing block 26 and the arc-shaped limit block 27 limit the unloading shaft 30, and an L-shaped structure is provided at the left end of the unloading shaft 30, and an L-shaped structure is provided on the output shaft of the servo motor 25. The L-shaped structure on the feeding shaft 25 contacts the L-shaped structure on the feeding shaft 30, so that the servo motor 25 can drive the feeding shaft 30 to rotate through the L-shaped structure; the two ends of the sterile membrane 31 are respectively bonded to the feeding shaft 29 and the feeding shaft 30, and the sterile membrane 31 passes through the top of the airbag 4. The sterile membrane 31 is used to protect the airbag 4 and the patient to prevent the blood on the patient's head from falling on the airbag 4, and at the same time prevent the patient's head from contacting the airbag 4 and causing infection; the baffle I 32 is detachably installed on the rear side of the support plate 3, and the baffle I 32 shields the connection frame 24 on the rear side; the baffle II 33 is detachably installed on the front side of the support plate 3, and the baffle II 33 Ⅱ33 shields the front connection frame 24; the liquid storage frame 34 is installed on the upper side of the baffle Ⅱ33, and the liquid storage frame 34 is used to store disinfectant. A feed port is provided on the right front side of the top of the liquid storage frame 34, and the feed port is used to add disinfectant into the liquid storage frame 34; a liquid outlet 341 is spaced apart on the rear side of the top of the liquid storage frame 34; the sponge rod 35 is rotatably installed on the upper side of the inside of the baffle Ⅱ33, and the sponge rod 35 contacts the liquid outlet 341 of the liquid storage frame 34, so that the disinfectant in the liquid storage frame 34 can flow out from the liquid outlet 341 to the sponge rod 35, and the sponge rod 35 contacts the sterile film 31, so that the sponge rod 35 can apply the disinfectant on the surface of the sterile film 31.

[0037] During use, disinfectant is added into the liquid storage frame 34, so that the disinfectant in the liquid storage frame 34 flows into the sponge rod 35 through the liquid outlet 341, so that the disinfectant adheres to the sponge rod 35; when the patient's head needs to be moved onto the airbag 4, the servo motor 25 is first used to drive the feed shaft 30 to rotate, so that the feed shaft 30 reels the sterile film 31, thereby replacing the sterile film 31 above the airbag 4. During this period, when the feed shaft 30 reels the sterile film 31, the sterile film 31 will use friction to drive the sponge rod 35 to rotate, and at the same time, the sponge rod 35 will also smear the disinfectant on the surface of the sterile film 31, thereby disinfecting the surface of the sterile film 31, and then the sterile film 31 replaced above the airbag 4 can be disinfected. After the replacement of the bacterial film 31 is completed, when the patient's head is moved onto the airbag 4, the patient's head is brought into contact with the sterile film 31 on the airbag 4. The sterile film 31 can prevent the blood on the patient's head from falling onto the airbag 4, and prevent the blood from remaining on the airbag 4 and affecting the use of the next patient, thereby protecting the airbag 4. At the same time, the sterile film 31 can prevent the patient's head from directly contacting the airbag 4, thereby preventing the bacteria on the airbag 4 from infecting the patient's head. After the patient's head is removed from the airbag 4, the servo motor 25 is used to drive the blanking shaft 30 to rotate again, so that the blanking shaft 30 rewinds the sterile film 31, thereby replacing the sterile film 31 above the airbag 4 to prevent the blood on the sterile film 31 from being exposed to the outside world for a long time and causing influence. After that, when the sterile film 31 is completely rolled up onto the blanking shaft 30, the sterile film 31 can be replaced; first, remove the baffle plate I 32 and the baffle plate II 33, then unscrew the bolt 28, and then pull the arc limit block 27 to rotate and open, so that the arc limit block 27 releases the limit on the loading shaft 29 and the blanking shaft 30, and then take out the loading shaft 29 and the blanking shaft 30, and then remove all the used sterile films 31 on the blanking shaft 30, and then put a new roll of sterile film 31 on it. The feeding shaft 29 and the unloading shaft 30 are put back to their original positions, and then the arc limit block 27 is pulled to reverse and close, so that the arc limit block 27 limits the feeding shaft 29 and the unloading shaft 30, and then the bolt 28 is reversed and twisted back, and then the head end of the new sterile membrane 31 is pulled around the top of the airbag 4, and then the head end of the new sterile membrane 31 is bonded to the unloading shaft 30, and then the baffle I 32 and the baffle II 33 are installed back to their original positions. In this way, the sterile membrane 31 can be replaced.

[0038] See also Fig.15 As shown, it also includes a moving mechanism, which includes an electric push rod II 36 and a universal ball 37; four electric push rods II 36 are arranged at intervals inside the support platform 1; and a universal ball 37 is rotatably arranged on the telescopic rod of the electric push rod II 36.

[0039] When the support platform 1 needs to be moved, the universal ball 37 can be driven downward by the electric push rod Ⅱ 36. After the universal ball 37 contacts the ground, when the universal ball 37 continues to move downward, the universal ball 37 will use the electric push rod Ⅱ 36 to lift the support platform 1, so that the support platform 1 is separated from the ground, and then the support platform 1 is pushed to move, so that the universal ball 37 can roll on the ground, thereby facilitating the movement of the support platform 1; when the support platform 1 reaches the specified position, the universal ball 37 is driven upward and reset by the electric push rod Ⅱ 36, so that the universal ball 37 is gradually separated from the ground. During this period, the support platform 1 will also gradually move downward and reset by its own gravity until the support platform 1 contacts the ground.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A head fixation bracket for ischemic cerebrovascular disease surgery, comprising a support platform (1), characterized in that: The device also comprises an electric push rod I (2), a support plate (3), an air bag (4), an air pump (5), a connecting pipe (6), a movable frame (7), a movable frame (8), a rotating block (9), a gear (10), a connecting block (11), a threaded rod (12), a clamping plate (13), an adjustment mechanism and a limiting mechanism. The electric push rod I (2) is symmetrically arranged on the support platform (1). The support plate (3) is connected between the telescopic rods of the electric push rod I (2). The air bag (4) is installed at the top of the support plate (3). The air bag (4) is used to support the patient's head. The air pump (5) is installed on the support plate (3). The two ends of the connecting pipe (6) are respectively connected to the air bag (4) and the air pump (5). The two movable frames ( The movable frame (7) is slidably arranged on the support platform (1), the movable frame (8) is slidably arranged on the movable frame (7), the rotating block (9) is rotatably arranged on the movable frame (8), the gear (10) is rotatably arranged on the rotating block (9), the connecting block (11) is connected to the gear (10), the threaded rod (12) is threadedly arranged on the connecting block (11) on one side, the clamping plate (13) is rotatably arranged on the connecting block (11) on the other side, and the threaded rod (12) and the clamping plate (13) are used to fix the patient's head, the adjustment mechanism is used to drive the movable frame (7) to move on the support platform (1), and the limiting mechanism is used to limit the movable frame (8), the rotating block (9) and the gear (10).

2. A head fixation bracket for ischemic cerebrovascular disease surgery according to claim 1, characterized in that: The adjustment mechanism comprises a reduction motor (14) and a bidirectional screw rod (15); the reduction motor (14) is mounted on the support platform (1); the bidirectional screw rod (15) is rotatably connected to the support platform (1); two movable frames (7) are respectively threadedly connected to two ends of the bidirectional screw rod (15); and the end of the bidirectional screw rod (15) is connected to the output shaft of the reduction motor (14).

3. A head fixation bracket for ischemic cerebrovascular disease surgery according to claim 2, characterized in that: The limiting mechanism comprises a cylinder I (16) and a friction block (17). The cylinder I (16) is mounted on the movable frame (7). The friction block (17) is connected to the telescopic rod of the cylinder I (16). The friction block (17) is used to limit the movable frame (8).

4. A head fixation bracket for ischemic cerebrovascular disease surgery according to claim 3, characterized in that: The limiting mechanism further comprises a cylinder II (18) and a limiting strip (19), wherein the cylinder II (18) is mounted on the movable frame (8), the limiting strips (19) are arranged at intervals in an annular manner on the rotating block (9), and limiting grooves (20) are arranged at intervals in an annular manner on the telescopic rod of the cylinder II (18), and the number of the limiting strips (19) is the same as the number of the limiting grooves (20).

5. A head fixation bracket for ischemic cerebrovascular disease surgery according to claim 4, characterized in that: The limiting mechanism further comprises a fixed ring (21), a rotating ring (22) and a gear block (23), wherein the fixed ring (21) is mounted on the rotating block (9), the rotating ring (22) is rotatably connected to the telescopic rod of the cylinder II (18), the gear block (23) is connected to the rotating ring (22), and the gear block (23) is slidably connected to the fixed ring (21), and the gear block (23) is used to mesh with the gear (10).

6. A head fixation bracket for ischemic cerebrovascular disease surgery according to claim 5, characterized in that: The invention also comprises a protection mechanism, which comprises a connecting frame (24), a servo motor (25), an arc-shaped fixed block (26), an arc-shaped limit block (27), a bolt (28), a feeding shaft (29), a feeding shaft (30), a sterile membrane (31) and a baffle plate I (32). The two connecting frames (24) are connected to the bottom end of the support plate (3). The servo motor (25) is installed on the connecting frame (24) on one side. The two connecting frames (24) are symmetrically provided with arc-shaped fixed blocks (26). The arc-shaped limit block (27) is rotatably installed on the arc-shaped fixed block (26). The bolt (28) is threadedly installed between the arc-shaped fixed block (26) and the arc-shaped limit block (27). The feeding shaft (29) is arranged in the connecting frame (24) not connected to the servo motor (25), and the feeding shaft (29) is located in the connecting frame (24). The feeding shaft (30) is arranged between the arc-shaped fixing block (26) and the arc-shaped limiting block (27) in the connecting frame (24) connected to the servo motor (25), and the feeding shaft (30) is located between the arc-shaped fixing block (26) and the arc-shaped limiting block (27) in the connecting frame (24); an L-shaped structure is arranged at one end of the feeding shaft (30) close to the servo motor (25); an L-shaped structure is arranged on the output shaft of the servo motor (25); the L-shaped structure on the servo motor (25) contacts the L-shaped structure on the feeding shaft (30); two ends of the sterile membrane (31) are respectively connected to the feeding shaft (29) and the feeding shaft (30); the sterile membrane (31) passes over the airbag (4); a baffle plate I (32) is arranged on the support plate (3), and the baffle plate I (32) shields the connecting frame (24) connected to the servo motor (25).

7. A head fixation bracket for ischemic cerebrovascular disease surgery according to claim 6, characterized in that: The protection mechanism further comprises a baffle II (33), a liquid storage frame (34) and a sponge rod (35). The baffle II (33) is arranged on the support plate (3), and the baffle II (33) shields the connection frame (24) not connected to the servo motor (25). The liquid storage frame (34) is mounted on the baffle II (33). The liquid storage frame (34) is used to store disinfectant. The liquid storage frame (34) is provided with liquid outlets (341) at intervals. The sponge rod (35) is rotatably mounted on the baffle II (33). The sponge rod (35) contacts the liquid outlet (341) of the liquid storage frame (34). The sponge rod (35) contacts the sterile membrane (31). The sponge rod (35) is used to apply the disinfectant on the surface of the sterile membrane (31).

8. The head fixation bracket for ischemic cerebrovascular disease surgery according to claim 7, characterized in that: The supporting platform (1) further comprises a moving mechanism, which comprises an electric push rod II (36) and a universal ball (37). The electric push rod II (36) is arranged at intervals inside the supporting platform (1), and the universal ball (37) is rotatably arranged on the telescopic rod of the electric push rod II (36).

Images