A head fixation device for brain surgery

Abstract

The present invention relates to the technical field of neurosurgery, and in particular to a head fixing device for neurosurgery, comprising a first head frame, a base plate provided on the first head frame, a first shaping cotton provided on the top of the base plate, a second slide groove provided on the side wall of the base plate, a support plate slidably connected to the second slide groove, a rotating shaft rotatably connected to the support plate, a lifting plate fixedly installed on the side wall of the rotating shaft, a second shaping cotton fixedly installed on the top of the lifting plate, and the first shaping cotton and the second shaping cotton are both filled with refined particles. The present invention effectively supports the patient's head, chin and other parts, thereby avoiding the situation where the patient's head and face are suspended in the air, preventing local compression due to excessive force on the skull pin on one side of the head, and avoiding the risk of breath holding due to tongue pressure. It can be shaped according to the different head features of each person to achieve a close fit, better fix the head, and further improve the comfort and stability of the equipment.

Description

Technical Field

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

[0002] A head fixation device for brain surgery is a medical device specifically designed to fix the patient's head during surgery to ensure the accuracy and safety of the operation. The main purpose of the head fixation device is to keep the patient's head fixed and stable during surgery so that the surgeon can accurately aim at the surgical area and perform precise operations.

[0003] At present, most of the existing head fixation devices fix the patient's head by means of skull pins. The weight of the head will be concentrated on the contact points between the skull pins and the scalp. Due to the lack of other effective supporting structures, these contact points are under too much pressure. Excessive pressure will obstruct the local blood circulation of the scalp and affect the patient's recovery. The head is suspended in the air, so that the patient's face is also suspended in the air. In this case, the tongue will fall due to gravity, which is likely to block the airway and cause the patient to have difficulty breathing, thus making the device less practical. Summary of the invention

[0004] The purpose of the present invention is to solve the disadvantage of poor practicability of the equipment in the prior art and to propose a head fixing device for brain surgery.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a head fixing device for brain surgery, comprising a first head frame, the first head frame is connected to a second head frame through an adjusting component, the adjusting component is used to adjust the distance between the first head frame and the second head frame, a triangular piece is arranged on the first head frame, and second fixing columns are respectively fixedly installed on both ends of the triangular piece and the second head frame, and the model of the second fixing column on the triangular piece is smaller than the model of the second fixing column on the second head frame, and three second fixing columns are respectively provided with fixing components of corresponding models, the fixing component comprises a second mounting shell, the second mounting shell is threadedly connected to the second fixing column, a skull pin is fixedly installed on the side wall of the second mounting shell, and the skull pin passes through the second fixing column, the first head frame is provided with a bottom plate, and the top of the bottom plate is provided with a first shaping cotton; The side wall of the bottom plate is provided with a second slide groove, the second slide groove is slidably connected to a support plate, the support plate is rotatably connected to a rotating shaft, a lifting plate is fixedly installed on the side wall of the rotating shaft, a second shaping cotton is fixedly installed on the top of the lifting plate, one end of the second shaping cotton close to the bottom plate is fixedly connected to the top of the support plate, the interiors of the first shaping cotton and the second shaping cotton are both filled with refined particles, and the side walls of the first shaping cotton and the second shaping cotton are both provided with air suction ports.

[0006] Preferably, a first slide groove is provided inside the first head frame, the second head frame is slidably connected to the first slide groove, the adjustment assembly includes a first gear provided in the first slide groove, the side wall of the first head frame is rotatably connected to a first connecting handle, the first connecting handle is fixedly connected to the first gear, and the second head frame is meshed with the first gear.

[0007] Preferably, a first fixing column is fixedly installed on the top of the first head frame, and the first fixing column is threadedly connected to the first mounting shell, and a threaded column is fixedly installed on the side wall of the first mounting shell, and the threaded column passes through the first fixing column, and the end of the threaded column away from the first mounting shell is threadedly connected to a triangular plate, and the triangle is arranged on the triangular plate through a fourth rotating member.

[0008] Preferably, a blood guide groove is provided at one end of the skull pin away from the second mounting shell.

[0009] Preferably, one end of the second fixing column away from the second mounting shell is threadedly connected with a connecting piece, a side of the connecting piece away from the second fixing column is provided with a rotating groove, the rotating groove is rotatably connected with a sealing wall, and the sealing wall is provided with a guide hole.

[0010] Preferably, an outer shell is fixedly mounted on the first head frame, a wrapping shell is fixedly mounted on the top of the outer shell, the wrapping shell is slidably connected to a lifting member, a second connecting handle is rotatably connected to the side wall of the outer shell, a second gear is fixedly mounted on the end of the second connecting handle, the second gear is located in the lifting member and meshed with the inner wall of the lifting member, and the base plate is located above the lifting member and fixedly connected to the lifting member.

[0011] Preferably, a breathable layer is arranged on the outside of the first shaping cotton, and the breathable layer is thick around and thin in the middle.

[0012] Preferably, the support plate is provided with fixing screws, the side wall of the base plate is provided with fixing grooves, and the fixing screws correspond to the fixing grooves.

[0013] Preferably, a pressing groove is provided at the end of the rotating shaft, and the pressing groove is slidably and rotatably connected to a pressing piece, a second card groove is provided on the side wall of the support plate, and a first card groove is provided on the side wall of the rotating shaft, and the second card groove and the first card groove both correspond to the pressing piece.

[0014] Preferably, a first rotating member is provided at the bottom of the first head frame, a first supporting frame is provided at the bottom of the first rotating member through a second rotating member, the bottom of the first supporting frame is connected to a second supporting frame through a third rotating member, a fixed frame is fixedly installed at the bottom of the second supporting frame, both ends of the fixed frame are respectively slidably connected with sliding frames, and the two sliding frames are respectively located on both sides of the second supporting frame.

[0015] Compared with the prior art, the advantages of the present invention are: 1. The present invention arranges the first shaping cotton, the second shaping cotton and the bottom plate and other devices, and uses the first shaping cotton, the second shaping cotton and other components to effectively support the patient's head, cheeks, chin and other parts through auxiliary support, thereby avoiding the situation where the patient's head and face are suspended in the air, preventing local compression due to excessive force on the skull pin on one side of the head, and avoiding the risk of breath holding due to tongue pressure, thereby improving the patient's comfort and safety during the operation. Refined particles are arranged inside the shaping cotton, and the internal air pressure can be changed from positive pressure to negative pressure by pumping air. The refined particles are solidified and wrap the patient's head, which can be shaped according to the different head characteristics of each person, achieve a close fit, better fix the head, further improve the comfort and stability of the equipment, and thus enhance the practicability of the equipment.

[0016] 2. The present invention forms a sealed space by setting up sealing walls and connecting parts, and the sealing wall presses against the patient's scalp. The blood is guided into the sealing wall by the blood guide groove on the skull pin, and then flows out through the guide hole. The guide hole is connected to a drainage tube to collect blood, thereby preventing the device from being eroded by blood and helping to extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a head fixation device for brain surgery proposed by the present invention; Figure 2 This is a schematic structural diagram of a base plate and a first shaping cotton of a head fixing device for brain surgery proposed by the present invention; Figure 3 A schematic diagram of the structure of a first gear and a second head frame of a head fixing device for brain surgery proposed by the present invention; Figure 4 This is a schematic structural diagram of a support plate and a base plate of a head fixation device for brain surgery proposed by the present invention; Figure 5 for Figure 4 The enlarged structural diagram at A in the middle; Figure 6 This is a schematic structural diagram of a skull pin and a blood guide groove of a head fixation device for brain surgery proposed by the present invention; Figure 7 This is a schematic diagram of the structure of the air permeable layer of a head fixation device for brain surgery proposed by the present invention; Figure 8 A schematic diagram of the structure of a pressing groove and a pressing member of a head fixing device for brain surgery proposed by the present invention; Fig. 9This is a schematic structural diagram of a triangular plate and triangular pieces of a head fixation device for brain surgery proposed by the present invention.

[0018] In the figure: 1 first head frame, 2 first connecting handle, 3 first gear, 4 first slide, 5 second head frame, 6 first rotating member, 7 first supporting frame, 8 second rotating member, 9 second supporting frame, 10 third rotating member, 11 fixed frame, 12 sliding frame, 13 outer shell, 14 wrapping shell, 15 lifting member, 16 second connecting handle, 17 second gear, 18 bottom plate, 19 breathable layer, 20 first shaping cotton, 201 second shaping cotton, 21 refined particles, 22 suction port, 23 The second slide groove, 24 support plate, 25 fixed slide groove, 26 fixing screw, 27 rotating shaft, 28 lifting plate, 29 pressing groove, 30 first card slot, 31 second card slot, 32 pressing piece, 33 first fixed column, 3301 second fixed column, 34 skull pin, 35 first mounting shell, 3501 second mounting shell, 36 blood guide groove, 37 connecting piece, 38 rotating groove, 39 sealing wall, 40 diversion hole, 41 fourth rotating piece, 42 threaded column, 43 triangular plate, 44 triangular piece. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figures 1 to 9 A head fixation device for brain surgery includes a first head frame 1, a first slide groove 4 is arranged inside the first head frame 1, a second head frame 5 is slidably connected to the first slide groove 4, a first gear 3 is arranged inside the first slide groove 4, a first connecting handle 2 is rotatably connected to the side wall of the first head frame 1, the first connecting handle 2 is fixedly connected to the first gear 3, the second head frame 5 is meshed with the first gear 3, and the first connecting handle 2 drives the first gear 3 to rotate, so that the second head frame 5 slides along the inner wall of the first slide groove 4, and then the distance between the first head frame 1 and the second head frame 5 is adjusted. The appropriate head frame spacing can ensure that the angle and force during head puncture and fixation are more reasonable. When the distance between the two head frames is adjusted to match the width of the patient's head, the device can penetrate the scalp more vertically, reducing patient discomfort and loose fixation caused by angle deviation.

[0021] A first rotating member 6 is provided at the bottom of the first head frame 1, and a first supporting frame 7 is provided at the bottom of the first rotating member 6 through a second rotating member 8. The bottom of the first supporting frame 7 is connected to a second supporting frame 9 through a third rotating member 10. The angle of the first head frame 1 is adjusted by the first rotating member 6, and the angle of the first supporting frame 7 is adjusted by the second rotating member 8 and the third rotating member 10. The first rotating member 6, the second rotating member 8 and the third rotating member 10 are all prior arts, and the specific working principles are not repeated here. A fixed frame 11 is fixedly installed at the bottom of the second supporting frame 9, and sliding frames 12 are respectively slidably connected to both ends of the fixed frame 11. The two sliding frames 12 are respectively located on both sides of the second supporting frame 9, and the sliding frames 12 are used to install the device as a whole on the operating bed (this is prior art).

[0022] A first fixing column 33 is fixedly installed on the top of the first head frame 1, and the first fixing column 33 is threadedly connected to the first mounting shell 35. A threaded column 42 is fixedly installed on the side wall of the first mounting shell 35, and the threaded column 42 passes through the first fixing column 33. The end of the threaded column 42 away from the first mounting shell 35 is threadedly connected to a triangular plate 43, and a triangular member 44 is provided on the triangular plate 43 through a fourth rotating member 41. The fourth rotating member 41 is used to adjust the angle of the triangular member 44 (this is the prior art). Second fixing columns 3301 are fixedly installed on both ends of the triangular member 44 and the second head frame 5, respectively, and the model of the second fixing column 3301 on the triangular member 44 is smaller than the model of the second fixing column 3301 on the second head frame 5. The three second fixing columns 3301 are respectively provided with fixing components of corresponding models, and the fixing components include a second mounting shell 3501, and the second mounting shell 3501 is threadedly connected to the second fixing column 3301. A skull pin 34 is fixedly installed on the side wall of the second mounting shell 3501. A blood guide groove 36 is provided at one end of 34 away from the second mounting shell 3501, and a connector 37 is threadedly connected to one end of the second fixing column 3301 away from the second mounting shell 3501. A rotating groove 38 is provided on the side of the connector 37 away from the second fixing column 3301. The rotating groove 38 is rotatably connected to a sealing wall 39, and a guide hole 40 is provided on the sealing wall 39. The skull pin 34 passes through the second fixing column 3301. After the skull pin 34 is nailed into the patient's scalp, the connector 37 is rotated to drive the sealing wall 39 to approach the patient's head so that the end of the sealing wall 39 is against the patient's scalp. In this way, a relatively sealed space can be formed to minimize blood extravasation and leakage, ensure that blood can flow along the blood guide groove 36 to the guide hole 40, thereby improving the efficiency and effect of drainage, and ensuring that the drainage operation is carried out as expected. Subsequently, the sealing wall 39 is rotated to adjust the position of the guide hole 40 downward, and the guide hole 40 is connected to a drainage tube for drainage, thereby reducing the possibility of blood accumulation interfering with the surgical operation.

[0023] An outer shell 13 is fixedly installed on the first head frame 1, and a wrapping shell 14 is fixedly installed on the top of the outer shell 13. A lifting piece 15 is slidably connected to the wrapping shell 14. A second connecting handle 16 is rotatably connected to the side wall of the outer shell 13. A second gear 17 is fixedly installed on the end of the second connecting handle 16. The second gear 17 is located in the lifting piece 15 and meshes with the inner wall of the lifting piece 15. A bottom plate 18 is arranged above the outer shell 13, and the bottom of the bottom plate 18 is fixedly connected to the top of the lifting piece 15. By rotating the second connecting handle 16, the second gear 17 rotates to make the lifting piece 15 move up and down, and the height of the bottom plate 18 is adjusted by driving the lifting piece 15. A first shaping cotton 20 is arranged on the top of the bottom plate 18. The height of the bottom plate 18 is adjusted so that the first shaping cotton 20 is aligned with the bottom plate 18. The patient's head fits well, and a breathable layer 19 is arranged on the outside of the first shaping cotton 20. The breathable layer 19 is thicker around and thinner in the middle. A second slide groove 23 is arranged on the side wall of the bottom plate 18, and the second slide groove 23 is slidably connected to a support plate 24. A fixing screw 26 is arranged on the support plate 24, and a fixed slide groove 25 is arranged on the side wall of the bottom plate 18. The fixing screw 26 corresponds to the fixed slide groove 25. A rotating shaft 27 is rotatably connected to the support plate 24, and a lifting plate 28 is fixedly installed on the side wall of the rotating shaft 27. A pressing groove 29 is arranged at the end of the rotating shaft 27, and a pressing piece 32 is slidably and rotatably connected to the pressing groove 29. A second card groove 31 is arranged on the side wall of the support plate 24, and a first card groove 30 is arranged on the side wall of the rotating shaft 27. The second card groove 31 and the first card groove 30 are both Corresponding to the pressing piece 32, a second shaping cotton 2001 is fixedly installed on the top of the lifting plate 28, and one end of the second shaping cotton 2001 close to the bottom plate 18 is fixedly connected to the top of the support plate 24. The first shaping cotton 20 and the second shaping cotton 2001 are filled with refined particles 21, and the refined particles 21 are in a loose state under positive pressure. The side walls of the first shaping cotton 20 and the second shaping cotton 2001 are both provided with an exhaust port 22. When the patient is in a side-lying state, the patient's head corresponds to the first shaping cotton 20, and the chin corresponds to the second shaping cotton 2001. The first shaping cotton 20 and the second shaping cotton 2001 are respectively exhausted through the two exhaust ports 22, so that the inside of the shaping cotton changes from positive pressure to negative pressure, and the external pressure squeezes the inside of the shaping cotton. The effect is to reduce the distance between the refined particles 21, and the particles are close to each other and piled up. As the distance between the refined particles 21 is reduced, the interaction force between the particles changes. Under the positive pressure state, there is a certain gap between the particles, and the degree of mutual contact and friction is low. Under the negative pressure state, the particles are tightly piled up, and the friction and interaction force between them are greatly increased. The increase in friction enables the refined particles 21 to form a solid state, thereby realizing the wrapping and fixation of the patient's head by the first shaping cotton 20, and the effective support of the patient's chin by the second shaping cotton 2001 to prevent the airway from being compressed due to the sagging chin, thereby ensuring the patient's smooth breathing and stabilizing the overall posture of the head. The positive pressure inside the shaping cotton is changed to negative pressure by exhaust.The principle of solidification of the refined particles 21 realizes the "tailor-made" wrapping and support for the patient's head and chin. Compared with the traditional method of simply relying on mechanical structure fixation, this fit is tighter and more durable, and can effectively resist interference factors such as slight vibrations during the operation and the patient's unconscious head movement, ensuring the stability of the surgical site and reducing surgical risks. The breathable layer 19 ensures the fixation effect while avoiding the discomfort of the patient's skin being stuffy and sweating due to long-term compression and wrapping. In particular, brain surgery often takes a long time. Good breathability helps maintain the normal physiological function of the skin and reduce postoperative skin problems. In addition, the first shaping cotton 20 and the second shaping cotton 2001 have a certain degree of softness and will not cause obvious tenderness to the patient like hard materials, so that the patient can accept the fixation operation relatively comfortably before and after anesthesia, which improves the patient's medical experience.

[0024] In the present invention, first, the skull pin 34 is installed in the second fixing column 3301 on the second head frame 5, and the second mounting shell 3501 and the second fixing column 3301 are threadedly connected to fix the skull pin 34 on the second head frame 5, and then the triangular plate 43 on the first head frame 1 is fixed, and the first mounting shell 35 on the first head frame 1 is rotated to install the threaded column 42 and the triangular plate 43 together. After the triangular plate 43 is fixed, the position of the triangular member 44 is corrected by the fourth rotating member 41 (this is the prior art), and then the skull pin 34 on the triangular member 44 is installed. The method of installing the skull pin 34 on the first head frame 1 and the second head frame 5 is the same.

[0025] After the skull pin 34 is installed, the lifting member 15 is adjusted according to the tilted position of the patient's head, and the second connecting handle 16 is rotated to drive the second gear 17 to rotate. The second gear 17 will drive the lifting member 15 to rise, and the second gear 17 and the lifting member 15 are meshed and connected. The function of the wrapping shell 14 is to protect the lifting member 15. When the lifting member 15 is lifted, it will drive the bottom plate 18 to rise. The bottom plate 18 is provided with a first shaping cotton 20, and the interior of the first shaping cotton 20 is filled with refined particles 21. The bottom plate 18 drives the support plate 24 to rise together, and pushes the support plate 24 to slide along the second slide groove 23. When the patient is lying on his side, adjust the support plate 2 4 so that the second shaping cotton 2001 on its top fits against the patient's cheek, and then the fixing screw 26 is turned to make the fixing screw 26 press against the inner wall of the fixed slide groove 25, thereby fixing the position of the support plate 24, and then the rotating shaft 27 is turned to make the lifting plate 28 rotate upward for lifting, thereby driving the end of the second shaping cotton 2001 away from the bottom plate 18 to lift and press against the patient's chin, so that the patient's chin is subjected to a lifting force, and then the pressing piece 32 is pushed close to the lifting plate 28, one end of the pressing piece 32 slides along the pressing groove 29, and the pressing piece 32 is engaged with the first card slot 30 and the second card slot 31, thereby limiting the rotating shaft 27.

[0026] Adjust the position of the second head frame 5 and the first head frame 1, rotate the first connecting handle 2 to rotate the first gear 3, and the first gear 3 and the second head frame 5 are meshed and connected, so that the second head frame 5 slides along the inner wall of the first slide groove 4. After the second head frame 5 moves to a suitable position, the skull pin 34 is nailed into the patient's scalp to fix the patient's head, and then the connecting piece 37 on the second fixing column 3301 is rotated to make it approach the patient's head along the second fixing column 3301, so that the end of the sealing wall 39 is against the patient's scalp to form a relatively sealed space, and then the sealing wall 39 is rotated again to make the guide hole 40 face downward. When bleeding occurs in the outer layer of the brain during surgery, the blood flow can be guided through the blood guide groove 36 on the skull pin 34, so that it drips on the sealing wall 39 and flows out along the guide hole 40, and the guide hole 40 is externally connected to a drainage tube to guide blood collection. The working principle of the fixing assembly on the triangular piece 44 is the same as that of the fixing assembly on the second head frame 5, which will not be repeated here.

[0027] Then, the position of the bottom plate 18 is finely adjusted to make the breathable layer 19 close to the patient's head. At this time, the first shaping cotton 20 and the second shaping cotton 2001 are in a positive pressure state, and the refined particles 21 are in a scattered state. The first shaping cotton 20 and the second shaping cotton 2001 are respectively evacuated through the two air suction ports 22 to make the internal air pressure of the first shaping cotton 20 and the second shaping cotton 2001 become negative pressure. According to the principle of gas pressure difference, the external pressure will produce an extrusion effect on the inside of the shaping cotton. This external pressure will reduce the distance between the refined particles 21, and the particles will approach each other and accumulate. As the distance between the refined particles 21 decreases, the friction and interaction force between the particles are greatly increased, so that the refined particles 21 can form a solid state, thereby achieving the wrapping and fixation of the patient's head by the first shaping cotton 20, and the effective support of the patient's chin by the second shaping cotton 2001. Since the first shaping cotton 20 fits tightly to the patient's head, sweating is likely to occur. When the first shaping cotton 20 is negatively pressured, the breathable layer 19 is squeezed and contracted inwardly. The breathable layer 19 is thicker around and thinner in the middle, thereby ensuring the fixation of the first shaping cotton 20 while ensuring ventilation.

[0028] Finally, the first support frame 7 and the second support frame 9 are connected, and the position of the first support frame 7 is adjusted by the second rotating member 8 and the third rotating member 10 to ensure the stability of the patient's head. The second support frame 9 and the fixed frame 11 are fixedly connected, and a sliding frame 12 is installed on the fixed frame 11. The sliding frame 12 is installed on the operating table (this is the prior art) to ensure the overall stability of the device.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A head fixation device for brain surgery, characterized in that: The invention comprises a first head frame (1), wherein the first head frame (1) is connected to a second head frame (5) via an adjustment component, wherein the adjustment component is used to adjust the distance between the first head frame (1) and the second head frame (5), wherein a triangular piece (44) is provided on the first head frame (1), and second fixing columns (3301) are respectively fixedly mounted on both ends of the triangular piece (44) and on the second head frame (5), and the model of the second fixing column (3301) on the triangular piece (44) is smaller than the model of the second fixing column (3301) on the second head frame (5). , the three second fixing columns (3301) are respectively provided with fixing components of corresponding models, the fixing components comprising a second mounting shell (3501), the second mounting shell (3501) is threadedly connected to the second fixing column (3301), a skull pin (34) is fixedly installed on the side wall of the second mounting shell (3501), the skull pin (34) passes through the second fixing column (3301), a bottom plate (18) is provided on the first head frame (1), and a first shaping cotton (20) is provided on the top of the bottom plate (18); The side wall of the bottom plate (18) is provided with a second slide groove (23), the second slide groove (23) is slidably connected to a support plate (24), the support plate (24) is rotatably connected to a rotating shaft (27), the side wall of the rotating shaft (27) is fixedly mounted with a lifting plate (28), the top of the lifting plate (28) is fixedly mounted with a second shaping cotton (2001), one end of the second shaping cotton (2001) close to the bottom plate (18) is fixedly connected to the top of the support plate (24), the first shaping cotton (20) and the second shaping cotton (2001) are both filled with refined particles (21), and the side walls of the first shaping cotton (20) and the second shaping cotton (2001) are both provided with an air extraction port (22).

2. A head fixation device for brain surgery according to claim 1, characterized in that: A first slide groove (4) is arranged inside the first head frame (1), the second head frame (5) is slidably connected to the first slide groove (4), the adjustment component comprises a first gear (3) arranged in the first slide groove (4), a first connecting handle (2) is rotatably connected to the side wall of the first head frame (1), the first connecting handle (2) is fixedly connected to the first gear (3), and the second head frame (5) is meshed with the first gear (3).

3. A head fixation device for brain surgery according to claim 1, characterized in that: A first fixing column (33) is fixedly mounted on the top of the first head frame (1), the first fixing column (33) is threadedly connected to a first mounting shell (35), a threaded column (42) is fixedly mounted on a side wall of the first mounting shell (35), the threaded column (42) passes through the first fixing column (33), one end of the threaded column (42) away from the first mounting shell (35) is threadedly connected to a triangular plate (43), and the triangular member (44) is arranged on the triangular plate (43) via a fourth rotating member (41).

4. A head fixation device for brain surgery according to claim 1, characterized in that: A blood guide groove (36) is provided at one end of the skull pin (34) away from the second mounting shell (3501).

5. The head fixation device for brain surgery according to claim 1, characterized in that: One end of the second fixing column (3301) away from the second mounting shell (3501) is threadedly connected to a connecting piece (37); a side of the connecting piece (37) away from the second fixing column (3301) is provided with a rotating groove (38); the rotating groove (38) is rotatably connected to a sealing wall (39); and a guide hole (40) is provided on the sealing wall (39).

6. The head fixation device for brain surgery according to claim 1, characterized in that: An outer shell (13) is fixedly mounted on the first head frame (1), a wrapping shell (14) is fixedly mounted on the top of the outer shell (13), the wrapping shell (14) is slidably connected to a lifting member (15), a second connecting handle (16) is rotatably connected to the side wall of the outer shell (13), a second gear (17) is fixedly mounted on the end of the second connecting handle (16), the second gear (17) is located inside the lifting member (15) and meshes with the inner wall of the lifting member (15), and the bottom plate (18) is located above the lifting member (15) and is fixedly connected to the lifting member (15).

7. The head fixation device for brain surgery according to claim 1, characterized in that: A breathable layer (19) is arranged outside the first shaping cotton (20), and the breathable layer (19) is thick around the edges and thin in the middle.

8. The head fixation device for brain surgery according to claim 1, characterized in that: The support plate (24) is provided with a fixing screw (26), the side wall of the bottom plate (18) is provided with a fixing slide groove (25), and the fixing screw (26) corresponds to the fixing slide groove (25).

9. The head fixation device for brain surgery according to claim 1, characterized in that: A pressing groove (29) is provided at the end of the rotating shaft (27), and a pressing piece (32) is slidably and rotatably connected to the pressing groove (29). A second clamping groove (31) is provided on the side wall of the supporting plate (24), and a first clamping groove (30) is provided on the side wall of the rotating shaft (27), and the second clamping groove (31) and the first clamping groove (30) both correspond to the pressing piece (32).

10. The head fixation device for brain surgery according to claim 1, characterized in that: A first rotating member (6) is provided at the bottom of the first head frame (1); a first support frame (7) is provided at the bottom of the first rotating member (6) via a second rotating member (8); the bottom of the first support frame (7) is connected to a second support frame (9) via a third rotating member (10); a fixed frame (11) is fixedly mounted at the bottom of the second support frame (9); sliding frames (12) are slidably connected to the two ends of the fixed frame (11); and the two sliding frames (12) are respectively located on both sides of the second support frame (9).

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