Head fixing device for cerebral angiography surgery

Abstract

The invention discloses a head fixing device for a cerebral angiography operation, and belongs to the technical field of medical instruments. Comprising an operating table, a fixing shell is installed on the operating table, a pit is formed in the fixing shell, a plurality of first liquid bag modules and a plurality of second liquid bag modules are fixedly connected to the pit of the fixing shell, and all the first liquid bag modules and all the second liquid bag modules are arranged in a staggered mode. The number of the second liquid bag modules is larger than that of the first liquid bag modules, and the first liquid bag modules and the second liquid bag modules support the head of a patient in a wrapping mode. The head of a patient is supported through the first liquid bag module, then the head of the patient is limited through the second liquid bag module which gradually deforms, the head of the patient is fixed in a bowl-shaped mode on the whole, the stability of the head of the patient is improved, and it is guaranteed that the operation process is conducted smoothly.

Description

Technical Field

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

[0002] Cerebral angiography is a medical imaging technology used to observe the vascular structure of the brain. It mainly injects contrast agents into the blood vessels and uses imaging methods such as X-rays to clearly display the morphology of the patient's cerebral blood vessels. This technology will be applied when performing cerebrovascular interventional surgery on the patient's cerebral blood vessels. During the angiography process, the patient's head needs to be supported and fixed on the operating table to ensure the stability of the imaging. Currently, a head frame or headrest is used to support and fix the patient's head. However, due to the differences in head shapes of different patients, when using the above method to fix the patient's head, part of the patient's head will inevitably be suspended. In this case, during the doctor's interventional surgery on the patient, the patient's head will shake. When this happens, it will affect the clarity of the angiography. If the clarity of the angiography changes, it will affect the doctor's judgment of the condition. If the angiography is performed again, the operation time will be prolonged, increasing the risk to the patient. Summary of the invention

[0003] The present invention provides a head fixing device for cerebral angiography surgery, so as to overcome the disadvantage that part of the patient's head is suspended in the air during the interventional surgery for cerebrovascular disease, which is prone to shaking and affects the angiography effect.

[0004] The technical implementation scheme of the present invention is: a head fixation device for cerebral angiography surgery, comprising an operating table, the operating table is equipped with a fixed shell, the fixed shell is provided with pits, a plurality of first liquid capsule modules and a plurality of second liquid capsule modules are fixedly connected to the pits of the fixed shell, all of the first liquid capsule modules and all of the second liquid capsule modules are arranged in a staggered manner, and the number of the second liquid capsule modules is greater than the number of the first liquid capsule modules, and the first liquid capsule modules and the second liquid capsule modules both support the patient's head by covering.

[0005] More preferably, the fixed shell is provided with a mounting seat, the mounting seat is equipped with a symmetrically distributed first electric push rod, the telescopic end of the first electric push rod is fixedly connected to a telescopic rod, the telescopic end of the telescopic rod is fixedly connected to a guide tube, the guide tube is slidably connected to a support rod, the side of the support rod away from the guide tube is fixedly connected to a connecting tube, and the connecting tube is fixedly connected to a mounting frame.

[0006] More preferably, the mounting frame is rotatably connected to a plurality of rotating cylinders, the rotating cylinders are sealingly and slidably connected to relay columns, the relay columns are rotatably connected to a first extrusion member, a first elastic member is provided between the relay column and an adjacent rotating cylinder, a second elastic member is provided between the first extrusion member and an adjacent relay column, and the first extrusion member is used to limit the position of the patient's head.

[0007] More preferably, a support plate is sealingly and slidingly connected in the connecting cylinder, a pressure sensor is provided on the side of the support plate close to the support rod, a third elastic member is provided between the support rod and the pressure sensor of the support plate, the pressure sensor of the support plate is used to monitor the pressure change in the connecting cylinder, and the rotating cylinder and the connecting cylinder are connected through a connecting pipe.

[0008] More preferably, two symmetrically distributed first sliding blocks are slidably connected in the guide tube, the support rod is located between two adjacent first sliding blocks, and a fourth elastic member is provided between the first sliding block and the support rod.

[0009] More preferably, the first sac module is composed of two transmission sac groups, and the transmission sac groups are connected to the remote sides of adjacent guide tubes through first oil guide pipes.

[0010] More preferably, it also includes a first bracket, which is fixed to the side of the mounting base away from the operating table, the upper side of the first bracket is rotatably connected to a rotating frame, the side of the rotating frame away from the first bracket is rotatably connected to a second extrusion member, and the second extrusion member is used to limit the patient's head.

[0011] More preferably, the first bracket and the rotating frame are respectively fixed with an arc-shaped cylinder and an extrusion rod, the extrusion rod slides in the arc-shaped cylinder, an elastic oil bag is provided in the arc-shaped cylinder, the extrusion rod is used to squeeze the elastic oil bag, and a second oil guide pipe passing through the arc-shaped cylinder is connected between the telescopic rod and the elastic oil bag.

[0012] More preferably, it further includes a first guide frame, the first guide frame is slidably connected to the mounting seat, the first guide frame is fixedly connected to a second bracket, the second bracket is equipped with a driving motor, and a transmission member is provided between the output shaft of the driving motor and the mounting seat.

[0013] More preferably, the fixed shell is fixedly connected to a third bracket, the third bracket is hinged to a second electric push rod, the telescopic end of the second electric push rod is hinged to the second bracket, the second bracket is fixedly connected to a second sliding block, and the fixed shell is fixedly connected to a second guide frame for sliding of the second sliding block.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention first supports the patient's head by relying on the first liquid capsule module, and then restricts the patient's head by relying on the gradually deformed second liquid capsule module, so as to fix the patient's head in an overall "bowl-shaped" manner, thereby improving the stability of the patient's head and ensuring the smooth progress of the surgical process; The patient's head is supported by the first extrusion members on both sides, and the first liquid bag module is used to detect the head shape of the patient, and the relative position of the first extrusion member and the patient's head is controlled by hydraulic transmission, so that the first extrusion member always clamps the cheek corresponding to the protrusion of the patient's head, further improving the fixing effect; The patient's forehead is restricted by a rotating frame, and the thickness of the patient's head is detected by the rotating frame. The relative position of the first extrusion piece and the patient's head in the vertical direction is controlled by hydraulic transmission, so that the first extrusion piece is centered relative to the patient's head in the vertical direction, avoiding poor fixation effect caused by too small contact area between the first extrusion piece and the patient's head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the fixed shell and the parts thereon of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the first liquid capsule module and the second liquid capsule module of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the transmission fluid bag assembly and the first oil guide pipe of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the mounting base and parts thereon of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the parts in the guide tube of the present invention; Figure 7 It is a three-dimensional structural cross-sectional view of the rotating cylinder and the first extrusion member of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the first bracket and the rotating frame of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the elastic oil bag and the second oil guide pipe of the present invention; Fig.10 is a three-dimensional structural cross-sectional view of the second guide frame of the present invention; Fig.11 It is a three-dimensional structural cross-sectional view of the first guide frame of the present invention.

[0016] The markings of the components in the accompanying drawings are as follows: 1, operating table, 2, fixed shell, 3, first liquid capsule module, 301, transmission liquid capsule group, 4, second liquid capsule module, 5, mounting seat, 6, first electric push rod, 7, telescopic rod, 8, guide cylinder, 9, support rod, 10, connecting cylinder, 11, mounting frame, 12, rotating cylinder, 13, relay column, 14, first extrusion member, 15, support plate, 16, first sliding block, 17, first oil guide pipe, 18, first bracket, 19, rotating frame, 20, second extrusion member, 21, arc cylinder, 22, extrusion rod, 23, elastic oil capsule, 24, second oil guide pipe, 25, first guide frame, 26, second bracket, 27, drive motor, 28, third bracket, 29, second electric push rod, 30, second sliding block, 31, second guide frame. DETAILED DESCRIPTION

[0017] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0018] Embodiment 1: A head fixation device for cerebral angiography surgery, combined with Figure 1-Figure 3 As shown, an operating table 1 is provided with a fixed shell 2, the fixed shell 2 is provided with a pit, a plurality of first liquid capsule modules 3 and a plurality of second liquid capsule modules 4 are fixedly connected to the pit of the fixed shell 2, all the first liquid capsule modules 3 and all the second liquid capsule modules 4 are arranged in an alternating manner, and the number of the second liquid capsule modules 4 is greater than the number of the first liquid capsule modules 3, and the first liquid capsule modules 3 and the second liquid capsule modules 4 both support the patient's head by covering.

[0019] In the above scheme, the purpose is to provide stable support and fixation for the patient's head when performing angiography surgery on the patient's head, so as to ensure the smooth progress of the angiography process; a control panel is installed on the outer side of the fixed shell 2; the number of the first liquid capsule modules 3 and the second liquid capsule modules 4 in this article are two and three respectively, among which the two first liquid capsule modules 3 are used to support the front and back parts of the lower side of the patient's head, the middle second liquid capsule module 4 is used to support the middle part of the lower side of the patient's head to increase the support area, and the two second liquid capsule modules 4 on both sides are used to fit the front and back sides of the patient's head to limit the movement of the patient's head, and rely on the deformation of the first liquid capsule module 3 and the second liquid capsule module 4 to fix the patient's head in an overall "bowl-shaped" manner to improve the stability of the patient's head; the first liquid capsule module 3 and the second liquid capsule module 4 are both provided with a liquid injection port connected to the outside world, and initially the first liquid capsule module 3 is filled with hydraulic oil.

[0020] Combination Figure 5-Figure 7As shown, the fixed shell 2 is provided with a mounting seat 5, and the mounting seat 5 is installed with a symmetrically distributed first electric push rod 6, the telescopic end of the first electric push rod 6 is fixedly connected to a telescopic rod 7, the telescopic end of the telescopic rod 7 is fixedly connected to a guide tube 8, the guide tube 8 is slidably connected to a support rod 9, the support rod 9 is fixedly connected to a connecting tube 10 on the side away from the guide tube 8, the connecting tube 10 is fixedly connected to a mounting frame 11, the mounting frame 11 is rotatably connected to a plurality of rotating tubes 12, the rotating tube 12 is sealingly and slidably connected to a relay column 13, the relay column 13 is rotatably connected to a first extrusion member 14, a first elastic member is arranged between the relay column 13 and an adjacent rotating tube 12, a second elastic member is arranged between the first extrusion member 14 and an adjacent relay column 13, and the first extrusion member 14 is used to limit the position of the patient's head.

[0021] In the above scheme, the aim is to strengthen the fixing effect on the front and back sides of the patient's head; in this article, there are two first electric push rods 6 symmetrically distributed front and back, and the two first electric push rods 6 respectively control the movement of adjacent parts to adapt to patients with different head shapes, and the two first electric push rods 6 are electrically connected to the control panel on the fixed shell 2; in this embodiment, the telescopic rod 7 can be regarded as a straight rod; the number of rotating cylinders 12 on the same mounting frame 11 is three; the first extrusion member 14 is provided with an elastic cushion on the side away from the relay column 13 to improve the comfort of the patient; the rotating cylinder 12 can be moved along the mounting frame 11 to Figure 1 The left view is rotated clockwise and counterclockwise, and the first extrusion member 14 can be moved along the relay column 13 to Figure 1 The top view rotates clockwise or counterclockwise. When the first extrusion member 14 contacts the patient's head, the first extrusion member 14 is swung in the two directions to adapt to the patient's head shape and improve the fixation effect on the patient's head. The first elastic member of the rotating cylinder 12 and the second elastic member of the first extrusion member 14 are both springs, which are used to actively restore the initial orientation of the first extrusion member 14 when it is not in contact with the patient's head.

[0022] Combination Figure 7 As shown, a support plate 15 is sealingly and slidingly connected inside the connecting cylinder 10, a pressure sensor is provided on the side of the support plate 15 close to the support rod 9, a third elastic member is provided between the support rod 9 and the pressure sensor of the support plate 15, and the pressure sensor of the support plate 15 is used to monitor the pressure change inside the connecting cylinder 10, and the rotating cylinder 12 and the connecting cylinder 10 are connected through a connecting pipe.

[0023] In the above scheme, the purpose is to make the first extrusion member 14 stop moving automatically to avoid excessive squeezing force on the patient's head and causing secondary injury to the patient; the rotating cylinder 12, the connecting cylinder 10 and the connecting tube between the two are filled with hydraulic oil; the third elastic member of the support rod 9 is a spring; the pressure sensor of the support plate 15 is an existing device, not shown in the figure; the pressure sensor of the support plate 15 is electrically connected to the control panel on the fixed shell 2, and when the pressure borne by the pressure sensor of the support plate 15 reaches a threshold value (that is, to ensure that the first extrusion member 14 can fix the patient's head and will not cause secondary injury to the patient), the pressure sensor of the support plate 15 closes the adjacent first electric push rod 6 through the control panel on the fixed shell 2.

[0024] Combination Figure 2-Figure 4 and Figure 6 As shown, two symmetrically distributed first sliding blocks 16 are slidably connected in the guide cylinder 8, the support rod 9 is located between the two adjacent first sliding blocks 16, and a fourth elastic member is arranged between the first sliding block 16 and the support rod 9, and the first liquid bag module 3 is composed of two transmission liquid bag groups 301, and the transmission liquid bag group 301 is connected to the opposite side of the adjacent guide cylinder 8 through the first oil guide pipe 17.

[0025] In the above scheme, the purpose is to make the first extrusion member 14 more targeted in fixing the position of the patient's head by laterally adjusting the position of the first extrusion member 14; the fourth elastic member of the first sliding block 16 is a spring, and the fourth elastic member elastic coefficients of two adjacent first sliding blocks 16 are the same; when the first sliding block 16 is pushed by the hydraulic oil, the first sliding block 16 pushes the support rod 9 laterally through the fourth elastic member, thereby causing the first extrusion member 14 to move laterally, changing the position where the first extrusion member 14 contacts the patient's head; when the two transmission liquid bag groups 301 in the same first liquid bag module 3 are squeezed to different degrees due to different patient head shapes, the support rod 9 will slide toward the side of the transmission liquid bag group 301 that is squeezed to a greater degree.

[0026] Workflow: When performing interventional surgery on a patient with cerebrovascular disease, the patient is first moved to the operating table 1 and the patient's head is placed on the two first liquid capsule modules 3 facing right. Then, the patient's head squeezes the two first liquid capsule modules 3. Due to the different head shapes of different patients, a situation in which the squeezing force on one transmission liquid capsule group 301 on the same first liquid capsule module 3 is greater than the squeezing force on the other transmission liquid capsule group 301 will occur (hereinafter described by taking the squeezing force on the left transmission liquid capsule group 301 on the front first liquid capsule module 3 as an example that is greater than the squeezing force on the right transmission liquid capsule group 301). When the two transmission liquid capsule groups 301 are squeezed, the hydraulic oil inside each of them is respectively transported to the guide cylinder 8 through the adjacent first oil guide pipes 17, so that the two first sliding blocks 16 are both close to the middle and squeeze the adjacent fourth elastic members respectively. However, due to the large squeezing force on the left transmission liquid capsule group 301, the moving distance of the right first sliding block 16 is greater than that of the left first sliding block 16, thereby causing the support rod 9 to move to the left as a whole. After the patient's head remains stable due to the support of the two first liquid capsule modules 3, the support rod 9 stops moving.

[0027] After the patient's head is kept stable due to the support of the two first liquid sac modules 3, the doctor actively injects hydraulic oil into the three second liquid sac modules 4, and the three second liquid sac modules 4 all swell and support and fix the patient's head. When the three second liquid sac modules 4 all fit the patient's head, the doctor stops injecting hydraulic oil into the three second liquid sac modules 4 (at this time, the three second liquid sac modules 4 are not in a completely swollen state, but are sunken to adapt to the patient's head shape). At this time, the two first liquid sac modules 3 and the three second liquid sac modules 4 form a "bowl shape" to fix the patient's head and improve the stability of the patient's head.

[0028] After the two first liquid capsule modules 3 and the three second liquid capsule modules 4 are in a supporting state for the patient's head, the doctor starts the two first electric push rods 6 (the first electric push rods 6 on the front side and its related parts will be described later) through the control panel of the fixed shell 2. The telescopic end of the first electric push rod 6 contracts and drives the parts thereon to move synchronously. During the movement of the first extrusion member 14, after the first extrusion member 14 contacts the side of the patient's head, the first extrusion member 14 controls itself to swing along the relay column 13 according to the shape of the side of the patient's head, and drives the rotating cylinder 12 through the relay column 13 to swing along the mounting frame 11, so that the first extrusion member 14 is in stable contact with the patient's head. In this process, the second elastic member of the first extrusion member 14 is deformed. As the telescopic end of the first electric push rod 6 contracts, the patient's head squeezes the first extrusion member 14. The first extrusion piece 14 squeezes the relay column 13, causing the relay column 13 to slide along the rotating cylinder 12. During this process, the first elastic member of the rotating cylinder 12 is squeezed and deformed. The relay column 13 squeezes the hydraulic oil in the rotating cylinder 12 into the connecting cylinder 10 through the connecting pipe. The support plate 15 slides forward due to the squeezing of the hydraulic oil entering the connecting cylinder 10. The pressure sensor of the support plate 15 squeezes the third elastic member thereon, and the third elastic member of the support rod 9 contracts, so that the reading of the pressure sensor of the support plate 15 increases due to the squeezing of the third elastic member of the support rod 9. When the pressure on the pressure sensor of the support plate 15 reaches the threshold, the pressure sensor of the support plate 15 closes the adjacent first electric push rod 6 through the control panel of the fixed shell 2, thereby ensuring the fixation effect on the patient's head while avoiding excessive force that may cause secondary injury to the patient.

[0029] After the two first electric push rods 6 have stopped, the angiography operation can be started. When the operation is over, the doctor controls the extension and reset of the telescopic ends of the two first electric push rods 6 through the control panel of the fixed shell 2. The telescopic ends of the first electric push rods 6 drive the parts thereon to move synchronously. During this process, the second elastic member of the first extrusion member 14 and the first elastic member of the rotating cylinder 12 gradually extend (during this process, the first extrusion member 14 is still in contact with the patient's head). When the second elastic member of the first extrusion member 14 and the first elastic member of the rotating cylinder 12 return to their original lengths, the first extrusion member 14 is no longer in contact with the patient's head.

[0030] When the telescopic end of the first electric push rod 6 is reset, the patient can be transferred. When the patient's head leaves the two first liquid capsule modules 3 and the three second liquid capsule modules 4, the fourth elastic part of the first sliding block 16 is reset, and the first sliding block 16 pushes the hydraulic oil on the adjacent side of the guide cylinder 8 back into the first liquid capsule module 3 through the first oil guide pipe 17. All the first liquid capsule modules 3 are filled again. Then the doctor releases the hydraulic oil in the second liquid capsule module 4 to complete the use of the device.

[0031] Embodiment 2: Based on Embodiment 1, Figure 1 , Figure 2 , Figure 5 , Figure 8 and Fig. 9 As shown, it also includes a first bracket 18, which is fixed to the side of the mounting base 5 away from the operating table 1, and the upper side of the first bracket 18 is rotatably connected to a rotating frame 19, and the side of the rotating frame 19 away from the first bracket 18 is rotatably connected to a second extrusion member 20, and the second extrusion member 20 is used to limit the patient's head.

[0032] In the above scheme, the purpose is to restrict the patient's forehead and reduce the impact of the patient's shaking on the imaging; the rotating frame 19 can be set as a telescopic frame with a self-locking function, and the extension of the rotating frame 19 can be adjusted to avoid affecting the imaging process; an elastic telescopic pad can be set on the left side of the second extrusion piece 20.

[0033] Combination Figure 5 , Figure 8 and Fig. 9 As shown, the first bracket 18 and the rotating frame 19 are respectively fixed with an arc tube 21 and an extrusion rod 22, the extrusion rod 22 slides in the arc tube 21, an elastic oil bag 23 is arranged in the arc tube 21, the extrusion rod 22 is used to extrude the elastic oil bag 23, and a second oil guide pipe 24 passing through the arc tube 21 is connected between the telescopic rod 7 and the elastic oil bag 23.

[0034] In the above scheme, the vertical position of the first extrusion member 14 is adjusted by detecting the thickness of the patient's head; as the rotating frame 19 swings downward, the first extrusion member 14 gradually moves downward; the elastic oil bag 23 and the second oil guide pipe 24 are both filled with hydraulic oil.

[0035] Workflow: After the first bladder module 3 and the second bladder module 4 support the patient's head, the doctor controls the rotating frame 19 to swing counterclockwise (with a rotation angle of 100°) before the telescopic ends of the two first electric push rods 6 are retracted through the control panel of the fixed shell 2. Figure 1The doctor then fixes the rotating frame 19, during which the rotating frame 19 drives the extrusion rod 22 to move synchronously. During the movement of the extrusion rod 22, the extrusion rod 22 contacts and squeezes the elastic oil bag 23. The elastic oil bag 23 is deformed and the hydraulic oil therein is squeezed into the two telescopic rods 7 through the two second oil guide pipes 24, so that the telescopic ends of the two telescopic rods 7 are both contracted. The telescopic ends of the telescopic rods 7 drive the parts thereon to move downward synchronously, thereby adjusting the position of the first extrusion piece 14 relative to the head, so that the first extrusion piece 14 is always close to the middle of the patient's head in the vertical direction, to avoid the poor fixing effect caused by the small contact area between the first extrusion piece 14 and the patient's head.

[0036] After the doctor controls the extension and reset of the telescopic ends of the two first electric push rods 6 through the control panel of the fixed shell 2, the doctor can control the rotating frame 19 to rotate clockwise, so that the rotating frame 19 drives the parts thereon to rotate in the opposite direction and reset. Then the elastic oil bag 23 resets by relying on its own elasticity, and draws back the hydraulic oil in the telescopic ends of the two telescopic rods 7 through the two second oil guide pipes 24. Then the rotating frame 19 is fixed to complete the reset of the rotating frame 19.

[0037] Embodiment 3: Based on Embodiment 2, Figure 2 , Figure 8 , Fig.10 and Fig.11 As shown, it also includes a first guide frame 25, the first guide frame 25 is slidably connected to the mounting seat 5, the first guide frame 25 is fixedly connected to the second bracket 26, the second bracket 26 is installed with a driving motor 27, a transmission member is arranged between the output shaft of the driving motor 27 and the mounting seat 5, the fixed shell 2 is fixedly connected to the third bracket 28, the third bracket 28 is hinged with a second electric push rod 29, the telescopic end of the second electric push rod 29 is hinged with the second bracket 26, the second bracket 26 is fixedly connected to the second sliding block 30, and the fixed shell 2 is fixedly connected to the second guide frame 31 for the second sliding block 30 to slide.

[0038] In the above scheme, when the imaging is blurred due to the different thicknesses of the skull of the patient, the patient's head is actively controlled to rotate to ensure the smooth progress of the imaging process; the transmission member between the output shaft of the drive motor 27 and the mounting seat 5 is a pulley belt (not limited), and the mounting seat 5 can be driven to rotate by the output shaft of the drive motor 27; the first guide frame 25 and the second guide frame 31 are both arc-shaped, and are both provided with arc-shaped grooves. The center of the circle corresponding to the arc-shaped groove of the second guide frame 31 is located on the upper side of the right part of the operating table 1 (that is, the position of the patient's neck after lying flat), and the center of the circle corresponding to the arc-shaped groove of the first guide frame 25 is located on the same horizontal line as the center point of the connection between the mounting seat 5 and the transmission member, thereby ensuring safety and stability when the patient's head is rotated.

[0039] Workflow: During the angiography procedure, when the angiography is blurred due to the thickness of the patient's skull (or when a change of viewing angle is required), the doctor can start the second electric push rod 29 through the control panel of the fixed shell 2, and the telescopic end of the second electric push rod 29 drives the second sliding block 30 to slide along the arc groove of the second guide frame 31 through the second bracket 26, so that the second bracket 26, the first guide frame 25 and the mounting seat 5 slide synchronously along the arc groove of the second guide frame 31, so that the patient's head moves around the neck to "nod" (i.e., Figure 1 The front view rotates clockwise or counterclockwise), and the drive motor 27 can be started so that the output shaft of the drive motor 27 drives the mounting seat 5 to rotate circumferentially along the arc groove of the first guide frame 25 through the transmission member, so that the patient's head can "shake his head" around the neck (i.e., Figure 1 The left view perspective rotates clockwise or counterclockwise), adjusts the position of the patient's head (during the patient's "shaking head" action, the patient's head moves relative to the first liquid capsule module 3 and the second liquid capsule module 4, but is still supported by the first liquid capsule module 3 and the second liquid capsule module 4), and after the imaging is clear, stops driving the motor 27 and the second electric push rod 29.

[0040] After the operation is completed, the doctor controls the driving motor 27 and the second electric push rod 29 through the control panel of the fixed shell 2 to drive the second bracket 26, the first guide frame 25 and the mounting seat 5 to reset.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A head fixation device for cerebral angiography surgery, characterized by: The invention comprises an operating table (1), wherein the operating table (1) is provided with a fixed shell (2), the fixed shell (2) being provided with a recess, a plurality of first liquid capsule modules (3) and a plurality of second liquid capsule modules (4) being fixedly connected to the recess of the fixed shell (2), all the first liquid capsule modules (3) and all the second liquid capsule modules (4) being arranged in a staggered manner, and the number of the second liquid capsule modules (4) being greater than the number of the first liquid capsule modules (3), and the first liquid capsule modules (3) and the second liquid capsule modules (4) both support the patient's head by covering.

2. The head fixation device for cerebral angiography according to claim 1, characterized in that: The fixed shell (2) is provided with a mounting seat (5), and the mounting seat (5) is mounted with symmetrically distributed first electric push rods (6), the telescopic ends of the first electric push rods (6) are fixedly connected to telescopic rods (7), the telescopic ends of the telescopic rods (7) are fixedly connected to guide tubes (8), the guide tubes (8) are slidably connected to support rods (9), the side of the support rods (9) away from the guide tubes (8) is fixedly connected to a connecting tube (10), and the connecting tube (10) is fixedly connected to a mounting frame (11).

3. The head fixation device for cerebral angiography according to claim 2, characterized in that: The mounting frame (11) is rotatably connected to a plurality of rotating cylinders (12), the rotating cylinders (12) are sealingly and slidably connected to relay columns (13), the relay columns (13) are rotatably connected to first extrusion components (14), a first elastic component is provided between the relay columns (13) and adjacent rotating cylinders (12), a second elastic component is provided between the first extrusion components (14) and adjacent relay columns (13), and the first extrusion components (14) are used to limit the position of a patient's head.

4. The head fixation device for cerebral angiography according to claim 3, characterized in that: A support plate (15) is sealingly and slidably connected inside the connecting cylinder (10); a pressure sensor is provided on a side of the supporting plate (15) close to the supporting rod (9); a third elastic member is provided between the supporting rod (9) and the pressure sensor of the supporting plate (15); the pressure sensor of the supporting plate (15) is used to monitor pressure changes in the connecting cylinder (10); and the rotating cylinder (12) and the connecting cylinder (10) are connected via a connecting pipe.

5. The head fixation device for cerebral angiography according to claim 4, characterized in that: Two symmetrically distributed first sliding blocks (16) are slidably connected in the guide cylinder (8), the support rod (9) is located between two adjacent first sliding blocks (16), and a fourth elastic member is provided between the first sliding block (16) and the support rod (9).

6. The head fixation device for cerebral angiography according to claim 5, characterized in that: The first liquid sac module (3) is composed of two transmission liquid sac groups (301), and the transmission liquid sac groups (301) are connected to the remote sides of adjacent guide cylinders (8) via first oil guide pipes (17).

7. The head fixation device for cerebral angiography according to claim 2, characterized in that: It also comprises a first bracket (18), the first bracket (18) being fixedly connected to a side of the mounting seat (5) away from the operating table (1), the upper side of the first bracket (18) being rotatably connected to a rotating frame (19), the side of the rotating frame (19) away from the first bracket (18) being rotatably connected to a second extrusion member (20), the second extrusion member (20) being used to restrict the patient's head.

8. The head fixation device for cerebral angiography according to claim 7, characterized in that: The first bracket (18) and the rotating frame (19) are respectively fixedly connected with an arc-shaped cylinder (21) and an extrusion rod (22); the extrusion rod (22) slides in the arc-shaped cylinder (21); an elastic oil bag (23) is arranged in the arc-shaped cylinder (21); the extrusion rod (22) is used to squeeze the elastic oil bag (23); and a second oil guide pipe (24) passing through the arc-shaped cylinder (21) is connected between the telescopic rod (7) and the elastic oil bag (23).

9. The head fixation device for cerebral angiography according to claim 7, characterized in that: The invention also comprises a first guide frame (25), the first guide frame (25) being slidably connected to the mounting seat (5), the first guide frame (25) being fixedly connected to a second bracket (26), the second bracket (26) being equipped with a driving motor (27), and a transmission member being arranged between an output shaft of the driving motor (27) and the mounting seat (5).

10. The head fixation device for cerebral angiography surgery according to claim 9, characterized in that: The fixed shell (2) is fixedly connected to a third bracket (28), the third bracket (28) is hingedly connected to a second electric push rod (29), the telescopic end of the second electric push rod (29) is hingedly connected to the second bracket (26), the second bracket (26) is fixedly connected to a second sliding block (30), and the fixed shell (2) is fixedly connected to a second guide frame (31) for the second sliding block (30) to slide.

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