Neurosurgery skull drilling auxiliary positioning device convenient to operate

Abstract

The utility model relates to the technical field of neurosurgery equipment, in particular to a neurosurgery skull drilling auxiliary positioning device convenient to operate. The neurosurgery skull drilling auxiliary positioning device convenient to operate comprises an annular hoop for fixing the head of a patient, mounting frames are symmetrically and slidably arranged on the outer side wall of the annular hoop along the circumferential face of the annular hoop, and pneumatic push rods are rotatably connected to the mounting frames in the vertical direction; connecting pieces are hinged to the output ends of the pneumatic push rods, round rotating pieces are fixed to the opposite faces of the two connecting pieces through connecting rods, and positioning cylinders are rotationally connected to the two round rotating pieces. The two pneumatic push rods stretch out and draw back synchronously to adjust the vertical position of the positioning cylinder, and the two pneumatic push rods stretch out and draw back in different directions to adjust the transverse position of the positioning cylinder. The neurosurgery skull drilling auxiliary positioning device convenient to operate has the advantages that different positions and angles can be conveniently adjusted, and positioning is stable.

Description

Technical Field

[0001] This utility model relates to the field of neurosurgical equipment technology, and in particular to an easy-to-operate neurosurgical skull drilling auxiliary positioning device. Background Technology

[0002] Neurosurgery often requires precise access to specific locations within the brain, such as lesions or hematomas. Assistive positioning devices can accurately plan the drilling location and path based on preoperative imaging data, such as CT and MRI scans, guiding surgeons to place the drill precisely in the target area. For example, in brain tumor resection surgery, this ensures the drill hole is directly aligned with the tumor, facilitating subsequent procedures.

[0003] In existing technologies, skull drilling-assisted positioning devices use a rocker arm to drive a first rotating rod to rotate, and a lead screw shaft to push the locking clamps closer or further apart, thereby stably clamping the device. A pressing block pushes a push rod, causing an arc-shaped hinged rod to lift the pressure pad. When the spring returns to its original position, it pushes the pressing block and push rod back to their original positions, causing the pressure pad to press down and clamp the patient's forehead for positioning. Some positioning devices have complex structures and numerous parts. When performing secondary drilling positioning, it is necessary to adjust the device to clamp the patient's head at different positions again, which is cumbersome and inconvenient for adjusting different positions or angles after the device is clamped and fixed.

[0004] Therefore, it is necessary to provide a new, easy-to-operate neurosurgical skull drilling-assisted positioning device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an easy-to-operate neurosurgical skull drilling auxiliary positioning device with adjustable position and angle and stable positioning.

[0006] The easy-to-operate neurosurgical skull drilling auxiliary positioning device provided by this utility model includes: an annular hoop for fixing the patient's head, a mounting frame symmetrically and slidingly arranged on the outer wall of the annular hoop along its circumference, and a pneumatic push rod rotatably connected to the mounting frame in the vertical direction.

[0007] The output end of the pneumatic push rod is hinged with a connecting plate. The rotation axis of the connecting plate is parallel to the rotation axis of the pneumatic push rod. Circular rotating plates are fixed on the opposite surfaces of the two connecting plates by connecting rods. Positioning cylinders are rotatably connected to the two circular rotating plates. The positioning cylinders can rotate along the center line between the two circular rotating plates.

[0008] The two pneumatic push rods extend and retract synchronously to adjust the vertical position of the positioning cylinder, and extend and retract in opposite directions to adjust the lateral position of the positioning cylinder.

[0009] Preferably, the outer wall of one side of the positioning cylinder has a vent channel that communicates with the cavity in the inner wall of the positioning cylinder for the rotation of the circular rotating plate, and an air valve is provided at the end of the vent channel away from the circular rotating plate.

[0010] Preferably, the mounting bracket has a slider fixed to the inner side near the annular hoop to assist its sliding. The inner wall of the slider away from the mounting bracket is provided with a connecting spring. One end of the connecting spring is fixed with a ball. The inner side of the annular hoop is provided with hemispherical grooves at equal angles corresponding to the position of the ball.

[0011] Preferably, the side of the circular rotating plate is tightly fitted with the cavity in the inner wall of the positioning cylinder for its rotation.

[0012] Preferably, the sphere protrudes one-third of its volume from the top surface of the slider at the end away from the mounting bracket, and the volume of the hemispherical groove is the same as the volume of the protruding part of the sphere.

[0013] Preferably, the side of the slider is always in close contact with the slide rail inside the annular hoop.

[0014] Compared with related technologies, the easy-to-operate neurosurgical skull drilling auxiliary positioning device provided by this utility model has the following beneficial effects:

[0015] This invention provides an easy-to-operate neurosurgical skull drilling auxiliary positioning device. The positioning cylinder is shifted to different positions by a connecting plate, and the vertical angle of the positioning cylinder can be deflected by a circular rotating plate inside the positioning cylinder, which effectively improves the positioning efficiency and ease of operation of the device. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the easy-to-operate neurosurgical cranial drilling auxiliary positioning device provided by this utility model;

[0017] Figure 2 for Figure 1 The diagram shows the structure between the annular hoop and the positioning cylinder.

[0018] Figure 3 for Figure 1 The diagram shows the internal structure of the positioning cylinder.

[0019] Figure 4 for Figure 1 The diagram shows the internal structure of the slider and the annular hoop.

[0020] The following are labeled in the diagram: 1. Ring hoop; 2. Mounting bracket; 3. Pneumatic push rod; 4. Connecting plate; 5. Positioning cylinder; 6. Circular rotating plate; 7. Slider; 8. Air passage; 9. Air valve; 10. Connecting spring; 11. Sphere; 12. Hemispherical groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] Please see Figures 1 to 4 This utility model provides an easy-to-operate neurosurgical skull drilling auxiliary positioning device, which includes:

[0024] For the annular hoop 1 used to fix the patient's head, a mounting frame 2 is symmetrically slidably provided on the outer wall of the annular hoop 1 along its circumference. A pneumatic push rod 3 is rotatably connected to the mounting frame 2 in the vertical direction. The mounting frame 2 slides on the side of the annular hoop 1 to adapt to different sizes and shapes of patients' heads.

[0025] The output end of the pneumatic push rod 3 is hinged with a connecting piece 4. The rotation axis of the connecting piece 4 is parallel to the rotation axis of the pneumatic push rod 3. Since the rotation axis of the connecting piece 4 and the pneumatic push rod 3 are parallel, the connecting piece 4 can flexibly change its position and angle as the pneumatic push rod 3 extends, retracts and rotates.

[0026] Two circular rotating plates 6 are fixed to the opposite surfaces of the two connecting plates 4 by connecting rods. A positioning cylinder 5 is rotatably connected to the two circular rotating plates 6. The positioning cylinder 5 can rotate along the center line between the two circular rotating plates 6. The side of the circular rotating plate 6 is tightly fitted with the cavity of the inner wall of the positioning cylinder 5 for rotation, so that the rotation relationship between the circular rotating plate 6 and the positioning cylinder 5 is smoother and the stability of the angle deflection of the positioning cylinder 5 is enhanced.

[0027] A ventilation channel 8 is provided on one outer wall of the positioning cylinder 5, which is connected to the cavity of the inner wall of the positioning cylinder 5 for the circular rotating plate 6 to rotate. An air valve 9 is provided at the end of the ventilation channel 8 away from the circular rotating plate 6. An external air pump increases the air pressure inside the positioning cylinder 5 through the ventilation channel 8, thereby increasing the friction between the circular rotating plate 6 and the cavity of the inner wall of the positioning cylinder 5. The positioning cylinder 5 is more stable after the angle is adjusted. The air valve 9 can prevent gas leakage after pressurization.

[0028] The two pneumatic push rods 3 extend and retract synchronously to adjust the vertical position of the positioning cylinder 5, and extend and retract in opposite directions to adjust the lateral position of the positioning cylinder 5. This helps to improve the versatility of equipment adjustment and effectively improves the ease of operation for users.

[0029] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The mounting bracket 2 is fixed with a slider 7 that assists its sliding near the inner side of the annular hoop 1. The side of the slider 7 is always in close contact with the slide rail on the inner side of the annular hoop 1, which effectively improves the stability of the mounting bracket 2 sliding on the side of the annular hoop 1 and prevents shaking during rotation.

[0030] A connecting spring 10 is provided on the inner wall of the end of the slider 7 away from the mounting bracket 2. A ball 11 is fixed to one end of the connecting spring 10. A hemispherical groove 12 corresponding to the position of the ball 11 is opened at equal angles on the inner side of the annular hoop 1. One-third of the volume of the ball 11 protrudes from the top surface of the end of the slider 7 away from the mounting bracket 2. The volume of the hemispherical groove 12 is the same as the volume of the protruding part of the ball 11. This makes it easy to lock the position of the mounting bracket 2 after the position of the mounting bracket 2 is adjusted by the engagement between the ball 11 and the hemispherical groove 12, which effectively improves the stability of the equipment.

[0031] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A neurosurgical skull drilling assistance positioning device for ease of operation, characterized in that, The application relates to a fixing ring (1) for fixing a patient's head, an installation frame (2) is symmetrically arranged on the outer wall of the fixing ring (1) along the circumferential surface, a pneumatic push rod (3) is vertically connected to the installation frame (2), the output end of the pneumatic push rod (3) is hingedly connected with a connecting plate (4), the rotating axis of the connecting plate (4) is parallel to the rotating axis of the pneumatic push rod (3), a circular rotating plate (6) is fixed on the opposite surface of the two connecting plates (4) through a connecting rod, a positioning cylinder (5) is rotatably connected to the two circular rotating plates (6), and the positioning cylinder (5) can rotate along the center line between the two circular rotating plates (6). The two pneumatic push rods (3) are synchronously extended and retracted to adjust the vertical position of the positioning cylinder (5), and the two pneumatic push rods (3) are extended and retracted in opposite directions to adjust the horizontal position of the positioning cylinder (5). An air passage (8) is arranged on one side of the outer wall of the positioning cylinder (5) and communicates with the cavity in the inner wall of the positioning cylinder (5) for the rotation of the circular rotating plate (6), and an air valve (9) is arranged at the end of the air passage (8) away from the circular rotating plate (6). A sliding block (7) is fixed to the inner side of the installation frame (2) close to the fixing ring (1) to assist the sliding of the installation frame (2), a connecting spring (10) is arranged on the inner wall of the end of the sliding block (7) away from the installation frame (2), one end of the connecting spring (10) is fixed with a spherical body (11), and a hemispherical groove (12) corresponding to the position of the spherical body (11) is symmetrically arranged on the inner side of the fixing ring (1).

2. The neurosurgical skull burr hole assisted positioning device for ease of operation as claimed in claim 1 wherein, The side surface of the circular rotating plate (6) is tightly combined with the cavity in the inner wall of the positioning cylinder (5) for the rotation of the circular rotating plate (6).

3. The neurosurgical skull burr hole assisted positioning device for ease of operation as claimed in claim 1 wherein, The spherical body (11) protrudes one third of its volume on the top surface of the end of the sliding block (7) away from the installation frame (2), and the volume of the hemispherical groove (12) is the same as the volume of the protruding part of the spherical body (11).

4. The neurosurgical skull burr hole assisted positioning device for ease of operation as claimed in claim 2 wherein, The side surface of the sliding block (7) is always tightly combined with the sliding groove on the inner side of the fixing ring (1).

5. The neurosurgical skull burr hole assisted positioning device for ease of operation as claimed in claim 3 wherein, ​ 6. The neurosurgical skull burr hole assisted positioning device for ease of operation as claimed in claim 5 wherein, ​

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