Head operation positioning device for neurosurgery department
By using an adaptive head fixation mechanism and a dual closed-loop mechanical-optical system, the positioning error and adaptation problems of traditional neurosurgical head positioning devices have been solved, achieving flexible fit and high-precision positioning, thus improving the safety and success rate of the surgery.
Patent Information
- Application Number
- CN202512043600.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional neurosurgical head positioning devices suffer from problems such as large positioning errors, uncomfortable fixation, poor intraoperative image compatibility, and difficulty in adapting to patients with different head circumferences.
It adopts an adaptive head fixation mechanism, including a three-point arc-shaped support plate, an inflatable buffer pad, an electric push rod, and a temporal limit block, combined with an XYZ three-axis ball screw slide and an optical positioning and tracking module, to achieve flexible fit and high-precision positioning.
It enables automatic adaptation to patients with different head shapes, improves positioning accuracy and stability, shortens preoperative preparation time, reduces repeated positioning errors, and improves surgical safety and success rate.
Smart Images

Figure CN121606458A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and in particular to a neurosurgical head surgery positioning device. Background Technology
[0002] Neurosurgery is a branch of surgery that, based on surgery as the primary treatment method, applies unique neurosurgical research methods to study the human nervous system, such as the brain, spinal cord, and peripheral nervous system, as well as related accessory structures such as the skull, scalp, cerebral blood vessels, and meninges, for injuries, inflammation, tumors, deformities, and certain genetic metabolic disorders or functional disorders. Neurosurgery primarily treats diseases of the brain, spinal cord, and other nervous systems caused by trauma, such as life-threatening cerebral hemorrhage, brain injuries caused by car accidents, or brain tumors that compress the brain and require surgical treatment.
[0003] During neurosurgical head surgery, it is necessary to fix the patient's head and neck. Traditional neurosurgical positioning devices mostly use rigid fixation structures, which have problems such as large positioning errors, uncomfortable fixation, and poor intraoperative image compatibility. Rigid support plates are difficult to adapt to patients with different head circumferences.
[0004] Therefore, in order to address this problem, the present invention proposes a neurosurgical head positioning device. Summary of the Invention
[0005] The purpose of this invention is to solve the problems in the prior art by proposing a neurosurgical head positioning device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A neurosurgical head positioning device includes a bed, an adaptive head fixation mechanism mounted on the top of the bed, a YZ three-axis ball screw slide fixedly connected to one side of the bed, a rotating gimbal fixedly connected to the surface of the YZ three-axis ball screw slide, and an optical positioning and tracking module fixedly connected to the bottom of the rotating gimbal. The adaptive head fixation mechanism includes a three-point arc-shaped support plate mounted on the top of the bed, an inflatable cushioning pad inside the three-point arc-shaped support plate, and an electric push rod fixedly connected to the top of the three-point arc-shaped support plate. A temporal limiting block is detachably mounted on the output end of the electric push rod.
[0008] Preferably, a minimally invasive adapter component is fixedly connected to the bottom of the rotating gimbal. The minimally invasive adapter component consists of a hollow positioning probe, a lighting lamp, a miniature camera, and a pressure alarm sensor.
[0009] Preferably, the top of the inflatable cushioning pad is detachably provided with a breathable pad, and the top of the breathable pad is provided with a breathable hole.
[0010] Preferably, an air pump is provided on one side of the three-point arc-shaped support plate, and the output end of the air pump is connected to the inflatable cushioning pad through a pipe.
[0011] Preferably, a backup power supply is fixedly connected inside the bed, and an emergency switch is fixedly connected to one side of the three-point arc-shaped support plate.
[0012] Preferably, the three-point arc-shaped support plate and the inflatable cushioning pad are both arc-shaped.
[0013] Compared with the prior art, the present invention provides a neurosurgical head surgery positioning device, which has the following beneficial effects:
[0014] This neurosurgical head positioning device, through the coordinated operation of a three-point arc-shaped support plate, an inflatable cushioning pad, an electric push rod, and a temporal limiting block, can automatically adapt to the skull curve of patients with different head shapes, achieving stepless adjustment and flexible fit. It breaks through the limitations of traditional rigid fixation structures that are difficult to adapt to patients with different head circumferences, ensuring head stability while taking comfort into account, and improving surgical safety and success rate.
[0015] This neurosurgical head surgery positioning device, through the coordinated operation of an XYZ three-axis ball screw slide and an optical positioning and tracking module, achieves a mechanical and optical dual closed-loop system that improves positioning accuracy and stability, effectively shortens preoperative preparation time and reduces repetitive positioning errors, thereby improving surgical safety and success rate. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a neurosurgical head surgery positioning device proposed in this invention;
[0017] Figure 2 This is a schematic diagram of the adaptive head fixation mechanism of a neurosurgical head positioning device proposed in this invention;
[0018] Figure 3 This is a cross-sectional schematic diagram of the three-point arc-shaped support plate of a neurosurgical head positioning device proposed in this invention.
[0019] Figure 4 This is a schematic diagram of the structure of a minimally invasive adapter component for a neurosurgical head positioning device proposed in this invention.
[0020] In the diagram: 1. Bed frame; 2. Adaptive head fixation mechanism; 21. Three-point arc-shaped support plate; 22. Inflatable cushioning pad; 23. Electric push rod; 24. Temporal limit block; 25. Breathable pad; 26. Backup power supply; 27. Emergency switch; 28. Air pump; 3. XYZ three-axis ball screw slide; 4. Rotating gimbal; 5. Optical positioning and tracking module; 6. Minimally invasive fitting components. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0023] Example 1:
[0024] Reference Figures 1-4 A neurosurgical head positioning device includes a bed 1, an adaptive head fixation mechanism 2 mounted on the top of the bed 1, a YZ three-axis ball screw slide 3 fixedly connected to one side of the bed 1, a rotating gimbal 4 fixedly connected to the surface of the YZ three-axis ball screw slide 3, and an optical positioning and tracking module 5 fixedly connected to the bottom of the rotating gimbal 4; wherein the adaptive head fixation mechanism 2 includes a three-point arc-shaped support plate 21 mounted on the top of the bed 1, an inflatable cushioning pad 22 provided inside the three-point arc-shaped support plate 21, and the top of the three-point arc-shaped support plate 21... An electric push rod 23 is fixedly connected. A temporal limiting block 24 is detachably installed at the output end of the electric push rod 23. An air-permeable pad 25 is detachably installed on the top of the inflatable cushioning pad 22. An air-permeable hole is opened on the top of the air-permeable pad 25. An air pump 28 is installed on one side of the three-point arc-shaped support plate 21. The output end of the air pump 28 is connected to the inflatable cushioning pad 22 through a pipe. A backup power supply 26 is fixedly connected inside the bed body 1. An emergency switch 27 is fixedly connected on one side of the three-point arc-shaped support plate 21. The three-point arc-shaped support plate 21 and the inflatable cushioning pad 22 are both arc-shaped.
[0025] In this invention, during use, the patient first lies on the bed 1 with their head positioned above the adaptive head fixation mechanism 2. The adaptive head fixation mechanism 2 is used to limit and fix the patient's head. Then, by activating the YZ three-axis ball screw slide 3, the rotating gimbal 4 and the optical positioning and tracking module 5 can move in the X, Y, and Z axes, allowing the optical positioning and tracking module 5, which is fixed by the rotating gimbal 4, to be initially positioned. This allows the optical positioning and tracking module 5 to be registered with the patient's CT or MRI images. During the operation, the positioning accuracy is calibrated in real time through a mechanical and optical dual closed-loop system, and the rotating gimbal 4 can adjust the puncture angle.
[0026] The three-point arc-shaped support plate 21 is used to install and fix the inflatable buffer pad 22. When the patient's head is located in the three-point arc-shaped support plate 21, the inflatable buffer pad 22 is inflated and can adaptively fit the patient's head to achieve automatic clamping. In addition, with the drive of the electric push rod 23, the temporal limit block 24 can be moved to perform secondary fixation on the patient's temporal region, thereby ensuring the stability of the patient's head.
[0027] With the addition of the breathable pad 25, a certain degree of flexibility is increased, while facilitating air circulation and providing heat dissipation for the patient's head. With the addition of the air pump 28, it can be used to automatically add or release gas to the inflatable cushion pad 22.
[0028] In addition, with the backup power supply 26 in place, in the event of an emergency such as a power outage, the emergency switch 27 can be activated to provide power to the air pump 28 and the electric push rod 23 for a short time, thereby releasing the fixation on the patient's head and avoiding discomfort caused by prolonged clamping. The shape of the air cushion 22 is also curved, which can better fit the patient's head.
[0029] Example 2:
[0030] Reference Figure 4 The bottom of the rotating gimbal 4 is fixedly connected to a minimally invasive adapter component 6, which consists of a hollow positioning probe, a lighting lamp, a miniature camera, and a pressure alarm sensor.
[0031] In this invention, the rotating gimbal 4 is located above the optical positioning and tracking module 5, which can drive the components to perform three-axis motion and adjust the puncture angle. An illumination lamp assists in surgical lighting, a miniature camera provides real-time observation of tissue structures, and a pressure alarm function prevents over-puncture, achieving an integrated minimally invasive procedure of "positioning-puncture-observation" and reducing tissue damage.
[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A neurosurgical head operation positioning device comprising a bed body (1), characterized in that, The top of the bed body (1) is provided with an adaptive head fixing mechanism (2), one side of the bed body (1) is fixedly connected with a YZ three-axis ball screw sliding table (3), the surface of the YZ three-axis ball screw sliding table (3) is fixedly connected with a rotating holder (4), and the bottom of the rotating holder (4) is fixedly connected with an optical positioning tracking module (5). The adaptive head fixing mechanism (2) comprises a three-point arc-shaped supporting plate (21) arranged on the top of the bed body (1), the three-point arc-shaped supporting plate (21) is internally provided with an air cushion (22), the top of the three-point arc-shaped supporting plate (21) is fixedly connected with an electric push rod (23), and the output end of the electric push rod (23) is detachably provided with a temporal limiting block (24).
2. A neurosurgical head procedure positioning device as claimed in claim 1, wherein, The bottom of the rotating holder (4) is fixedly connected with a minimally invasive adaptive assembly (6), and the minimally invasive adaptive assembly (6) comprises a hollow positioning probe, an illuminating lamp, a miniature camera and a pressure alarm function sensor.
3. A neurosurgical head procedure positioning device as recited in claim 1, wherein, The top of the air cushion (22) is detachably provided with a breathable pad (25), and the top of the breathable pad (25) is provided with a breathable hole.
4. The neurosurgical head procedure positioning device of claim 1, wherein, One side of the three-point arc-shaped supporting plate (21) is provided with an air pump (28), and the output end of the air pump (28) is connected to the air cushion (22) through a pipeline.
5. A neurosurgical head procedure positioning device as recited in claim 1, wherein, The inside of the bed body (1) is fixedly connected with a backup power supply (26), and one side of the three-point arc-shaped supporting plate (21) is fixedly connected with an emergency switch (27).
6. A neurosurgical head procedure positioning device as recited in claim 1, wherein, The three-point arc-shaped supporting plate (21) and the air cushion (22) are both arc-shaped.