A head positioning device for cerebral hemorrhage puncture operation

Abstract

The application belongs to the technical field of surgical auxiliary instruments, and provides a head positioning device for cerebral hemorrhage puncture surgery, which comprises a double-layer fixing platform, a laser alignment assembly, a circuit board, and a posture sensor, a core control unit and a wireless communication module arranged on the circuit board; the double-layer fixing platform comprises an upper base and a lower base, a micro-motion platform and a clamping clamp; the micro-motion platform is connected between the double-layer base by three ball head adjusting screws in a triangular distribution, the laser alignment assembly comprises three plane laser emitters and a vertical plane laser emitter, the ball head adjusting screw and the laser alignment assembly are matched, and the micro-motion platform is positioned and aligned with a drainage surgery reference plane; the application has compact structure, high adjustment and positioning precision, and is suitable for occasions requiring high-precision dynamic space reference positioning, such as cerebral hemorrhage puncture surgery.

Description

Technical Field

[0001] This invention belongs to the field of surgical auxiliary device technology, and relates to head positioning and posture measurement, specifically a head positioning device for cerebral hemorrhage puncture surgery. Background Technology

[0002] The key to minimally invasive puncture and drainage for cerebral hemorrhage lies in accurately locating the patient's head position and controlling the angle and depth of the puncture to ensure that the drainage tube accurately reaches the center of the hematoma.

[0003] Existing positioning devices are mostly integrated fixed structures, with head clamping mechanisms and puncture guide sleeves having fixed angles and fixed strokes. They can only adapt to standard head sizes and mostly lack micro-adjustment mechanisms, making calibration operations cumbersome. They also cannot output real-time dynamic head posture data or track minute head displacements. Although some positioning devices with fine-adjustment functions have emerged in recent years, they still suffer from long device positioning and installation times, difficulty in aligning the device's reference plane with the head's virtual plane, and low accuracy. Whether the head is fixed to the positioning device before surgery or when the patient's head experiences slight displacement or hematoma surface projection deviation during surgery, it is difficult to intuitively and quickly assist in positioning or correct deviations and eliminate them rapidly and accurately.

[0004] Therefore, there is an urgent need to develop a high-precision dynamic spatial reference positioning device with a compact structure that can achieve rapid preoperative installation and positioning, and precise intraoperative fine-tuning. Summary of the Invention

[0005] The purpose of this invention is to provide a head positioning device for cerebral hemorrhage puncture surgery, which integrates laser-assisted alignment, three-point ball head precision micro-adjustment and dynamic posture perception to achieve precise head positioning before cerebral hemorrhage puncture surgery and to facilitate drainage during surgery.

[0006] The technical solution adopted by the present invention to achieve the above objectives is as follows: A head positioning device for cerebral hemorrhage puncture surgery includes: a double-layer fixation platform, a laser alignment component, a circuit board, and an attitude sensor, a core control unit, and a wireless communication module mounted on the circuit board; the double-layer fixation platform includes an upper base and a lower base, a three-dimensional adjustable micro-motion platform, and a pair of rotatable clamps; the micro-motion platform is connected to the middle of the upper base and the lower base by three ball-head adjusting screws arranged in a triangle, the spherical top surface of each ball-head adjusting screw forms a spherical pair contact with the micro-motion platform, and the threaded end of each ball-head adjusting screw is threadedly connected to the fixation platform.

[0007] Furthermore, the laser alignment component includes three planar laser emitters and one vertical laser emitter. The three planar laser emitters are fixedly installed on the same reference plane on the front end face of the micro-motion platform, and their emission direction is perpendicular to the front end face and outwards, used to align the micro-motion platform of the device to three preset marker points on the head. The vertical laser emitter is fixedly installed on the extension end of the micro-motion platform away from the three laser emitters. The extension end of the micro-motion platform is on the vertical plane of the axis of symmetry of the micro-motion platform. The emission direction of the vertical laser emitter is parallel to the plane where the micro-motion platform is located and outwards, pointing to the preset midline auxiliary line of the cranium, used to verify the alignment result.

[0008] Furthermore, of the three ball-head adjusting screws arranged in a triangular pattern, two are located on the front sides of the micro-motion platform, with the two front ball-head adjusting screws symmetrically positioned relative to the micro-motion platform, for coordinating the adjustment of the roll angle of the micro-motion platform; the third ball-head adjusting screw is located at the rear of the micro-motion platform, with the third ball-head adjusting screw at the same distance from the two front ball-head adjusting screws, for cooperating with the two front ball-head adjusting screws to adjust the pitch angle of the micro-motion platform.

[0009] Furthermore, the pair of rotatable clamps are respectively installed on both sides between the upper base and the lower base. One end of the rotatable clamp is hinged to the upper base and the lower base, and the other end is a free end. A torsion spring is provided at the hinge.

[0010] Furthermore, the circuit board is fixedly mounted on the upper surface of the micro-motion platform; the core control unit on the circuit board is electrically connected to the attitude sensor and the wireless communication module respectively. The attitude sensor is used to collect the spatial attitude data of the device in real time; the wireless communication module is used to transmit the attitude data outward.

[0011] The beneficial effects of this invention are: The positioning device of this invention utilizes the principle of three points determining a plane. It projects three laser beams onto preset marker points on the patient's head, and then independently fine-tunes the pitch and roll angles by rotating three ball-head adjusting screws. This allows the device's micro-motion platform to quickly align with the plane defined by the preset reference points on the patient's head. An added vertical laser emitter provides independent verification of the alignment result by indicating whether it points towards the midline of the brain. An integrated high-precision attitude sensor collects the positioning device's attitude data in real time and transmits it via a wireless communication module, enabling dynamic compensation for minor head displacements. This invention features a compact structure and high positioning accuracy, making it suitable for applications requiring high-precision dynamic spatial reference positioning, such as cerebral hemorrhage puncture surgery. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the device according to an embodiment of the present invention; Figure 2This is a side view of the device according to an embodiment of the present invention; Figure 3 This is a top view of the device according to an embodiment of the present invention; In the diagram: 1. Fixed platform; 11. Upper base; 12. Lower base; 13. First rotary clamp; 14. Second rotary clamp; 2. Micro-motion platform; 21. First ball head adjusting screw; 22. Second ball head adjusting screw; 23. Third ball head adjusting screw; 24. First planar laser emitter; 25. Second planar laser emitter; 26. Third planar laser emitter; 27. Vertical laser emitter; 3. Circuit board; 31. Attitude sensor; 32. Core control unit; 33. Wireless communication module. Detailed Implementation

[0013] The technical solution of the present invention will be described in detail below with reference to the embodiments and accompanying drawings.

[0014] like Figures 1 to 3 As shown, the head positioning device for cerebral hemorrhage puncture surgery according to the present invention includes a fixing platform 1, a laser alignment component, a circuit board 3, and an attitude sensor 31, a core control unit 32 and a wireless communication module 33 disposed on the circuit board 3.

[0015] The fixed platform 1 includes an upper base 11, a lower base 12, a first rotary clamp 13, a second rotary clamp 14, and a micro-motion platform 2. The first rotary clamp 13 and the second rotary clamp 14 on the fixed platform 1 work together to clamp and fix the patient's head. The micro-motion platform 2 is located between the upper base 11 and the lower base 12, and is connected to the upper base 11 by a first ball-head adjusting screw 21, a second ball-head adjusting screw 22, and a third ball-head adjusting screw 23. The first ball-head adjusting screw 21, the second ball-head adjusting screw 22, and the third ball-head adjusting screw 23 are arranged in a triangular pattern, with the first ball-head adjusting screw 21 and the third ball-head adjusting screw 23 symmetrically positioned at the front of the micro-motion platform 2. Two ball-head adjusting screws 22 are located at the rear of the micro-motion platform 2. The distance from the second ball-head adjusting screw 22 to the first ball-head adjusting screw 21 and the third ball-head adjusting screw 23 is the same. The tops of the first ball-head adjusting screw 21, the second ball-head adjusting screw 22, and the third ball-head adjusting screw 23 are spherical, forming a spherical pair contact with the bottom surface of the micro-motion platform 2. The threaded ends of the first ball-head adjusting screw 21, the second ball-head adjusting screw 22, and the third ball-head adjusting screw 23 pass through the threaded holes of the upper base 11, and the ball-head ends are connected to the micro-motion platform 2. Rotating the first ball-head adjusting screw 21 and the third ball-head adjusting screw 23 can adjust the roll angle of the micro-motion platform 2, and rotating the second ball-head adjusting screw 22 can adjust the pitch angle of the micro-motion platform 2.

[0016] The first rotary clamp 13 and the second rotary clamp 14 are respectively disposed between the upper base 11 and the lower base 12 on both sides. One end is hinged to the upper base 11 and the lower base 12, and the other end is a free end. A torsion spring is provided at the hinge to clamp and fix the patient's head.

[0017] The laser alignment assembly includes a first planar laser emitter 24, a second planar laser emitter 25, a third planar laser emitter 26, and a vertical laser emitter 27. The first planar laser emitter 24, the second planar laser emitter 25, and the third planar laser emitter 26 are fixedly installed on the same reference plane on the front end face of the micro-motion platform 2, and the emission direction is perpendicular to the front end face of the micro-motion platform 2 and emitted outward. Their spatial positions correspond to three preset target marker points.

[0018] In use, turn on the first planar laser emitter 24, the second planar laser emitter 25, and the third planar laser emitter 26, observe the positional deviation of the three laser beams on the patient's head, and make fine adjustments by rotating the first ball head adjusting screw 21, the second ball head adjusting screw 22, and the third ball head adjusting screw 23 until the three laser beams accurately hit their respective marker points. At this time, the micro-motion platform 2 is parallel to the virtual reference plane of the patient's head.

[0019] The vertical laser emitter 27 is installed at the extension end of the micro-motion platform 2. The extension end of the micro-motion platform 2 is on the vertical plane where the axis of symmetry of the micro-motion platform 2 is located. The vertical laser emitter 27 emits outward parallel to the plane where the micro-motion platform 2 is located, pointing towards the preset auxiliary line of the midline of the brain.

[0020] After aligning the micro-motion platform 2 using the first planar laser emitter 24, the second planar laser emitter 25, and the third planar laser emitter 26, turn on the vertical laser emitter 27 and observe whether its laser can hit the auxiliary line of the midline of the brain to verify the correct alignment of the micro-motion platform 2 with the virtual reference plane of the patient's head. After alignment, tighten the first ball head adjusting screw 21, the second ball head adjusting screw 22, and the third ball head adjusting screw 23.

[0021] The circuit board 3 is fixedly installed at the center of the upper surface of the micro-motion platform 2 and moves synchronously with the micro-motion platform 2. Four laser emitters are arranged around the circuit board 3. Each laser emitter has a long hole channel near it. The long hole channel runs through the micro-motion platform 2, with one end located at the laser emitter installation position and the other end leading to the location of the circuit board 3. The long hole channel is used to accommodate the wires connecting the four laser emitters and the circuit board 3, making the wiring concealed and orderly.

[0022] Attitude sensor 31 is mounted on circuit board 3 and is used to collect spatial attitude data of the device in real time. Attitude sensor 31 outputs three-axis Euler angles, namely roll angle, pitch angle and yaw angle. Core control unit 32 is mounted on circuit board 3 and is electrically connected to attitude sensor 31 and wireless communication module 33 respectively. It is used to receive and process attitude data and then transmit it to the outside through wireless communication module 33. Wireless communication module 33 is mounted on circuit board 3 and is electrically connected to core control unit 32. It is used to wirelessly transmit attitude data to external receiving device.

[0023] The above description is merely a specific embodiment of the present invention, and the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A head positioning device for cerebral hemorrhage puncture surgery, characterized in that: The device includes a double-layer fixed platform, a laser alignment assembly, a circuit board, and an attitude sensor, a core control unit, and a wireless communication module mounted on the circuit board. The double-layer fixed platform includes an upper base and a lower base, a three-dimensional adjustable micro-motion platform, and a pair of rotatable clamps. The micro-motion platform is connected to the upper and lower bases by three ball-head adjusting screws arranged in a triangle. The spherical tip of each ball-head adjusting screw forms a spherical pair contact with the micro-motion platform, and the threaded end of each ball-head adjusting screw is threadedly connected to the fixed platform.

2. The head positioning device for cerebral hemorrhage puncture surgery according to claim 1, characterized in that: The laser alignment assembly includes three planar laser emitters and one vertical laser emitter. The three planar laser emitters are fixedly installed on the same reference plane on the front end face of the micro-motion platform, and their emission direction is perpendicular to the front end face and outwards. They are used to align the micro-motion platform of the device to three preset marker points on the head. The vertical laser emitter is fixedly installed on the extension end of the micro-motion platform away from the three laser emitters. The extension end of the micro-motion platform is on the vertical plane of the axis of symmetry of the micro-motion platform. The emission direction of the vertical laser emitter is parallel to the plane on which the micro-motion platform is located and outwards, pointing to the preset midline auxiliary line of the cranium. It is used to verify the alignment result.

3. The head positioning device for cerebral hemorrhage puncture surgery according to claim 1, characterized in that: The three ball-head adjusting screws are arranged in a triangle. Two of them are located on the front sides of the micro-motion platform, with the two front ball-head adjusting screws symmetrically arranged relative to the micro-motion platform, and are used to adjust the roll angle of the micro-motion platform in coordination. The third ball-head adjusting screw is located at the rear of the micro-motion platform, and is equidistant from the two front ball-head adjusting screws, and is used to adjust the pitch angle of the micro-motion platform in conjunction with the two front ball-head adjusting screws.

4. The head positioning device for cerebral hemorrhage puncture surgery according to claim 1, characterized in that: The pair of rotatable clamps are respectively installed on both sides between the upper base and the lower base. One end of the rotatable clamp is hinged to the upper base and the lower base, and the other end is a free end. A torsion spring is provided at the hinge.

5. A head positioning device for cerebral hemorrhage puncture surgery according to claim 1, characterized in that: The circuit board is fixedly mounted on the upper surface of the micro-motion platform; the core control unit on the circuit board is electrically connected to the attitude sensor and the wireless communication module respectively. The attitude sensor is used to collect the spatial attitude data of the device in real time; the wireless communication module is used to transmit the attitude data outward.

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