Intelligent bone chisel device based on pressure sensing

Abstract

The application discloses a kind of intelligent operation with bone chisel equipment based on pressure sensing, including handle, cutter bar assembly, bone chisel head, pressure sensing module, control module and locking mechanism.Cutter bar assembly is connected to handle.Bone chisel head is detachably connected to the end of cutter bar assembly away from handle.Pressure sensing module is arranged on cutter bar assembly, for real-time detection of the pressure suffered by bone chisel head when cutting.Control module is arranged in handle, and is electrically connected with pressure sensing module, for receiving pressure signal and judging whether the preset cut-through threshold is reached.Locking mechanism is arranged in handle and corresponds to cutter bar assembly.The application can convert the subjective hand feeling of doctors into objective electronic signals and mechanical actions, realize automatic emergency braking at the moment of cutting through bone, greatly improve the safety of operation, and avoid deep tissue damage caused by slow reaction or dull hand feeling of doctors.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to an intelligent surgical bone chisel device based on pressure sensing. Background Technology

[0002] In modern surgery, osteotomy is fundamental to procedures such as treating skeletal deformities, fracture reduction, tumor resection, and joint replacement. Traditionally, osteotomy is performed manually by the surgeon, using a surgical hammer in conjunction with the scalpel, relying entirely on the surgeon's tactile feedback and clinical experience. However, this approach has revealed numerous insurmountable limitations and risks in practical clinical application.

[0003] Clinical statistics show that during complex anatomical dissections, such as skull base tumor resection or spinal laminectomy, the operator's lack of perception of the depth of penetration by the scalpel tip is a major cause of intraoperative complications. When the osteotome penetrates the hard cortical bone layer into the cancellous bone, or accidentally punctures the medial cortical bone into the soft tissue area, a momentary "penetration effect" can easily occur, causing the scalpel tip to lose control and pierce deep nerve plexuses, major blood vessels, or internal organs. For example, in oral and maxillofacial surgery, the incidence of inferior alveolar nerve injury and sensory loss caused by this is consistently high. In addition, fatigue in the surgeon's hand during prolonged surgery may lead to decreased sensitivity, increasing the risk of misjudgment.

[0004] In existing technologies, such as Chinese patent CN211862907U, an ultrasonic bone scalpel handle with added force control device is disclosed. This device, by installing a motion-sensing force control device on the handle, helps physicians perceive key pressure values ​​to control cutting efficiency. Another example is Chinese patent CN111035434A, which discloses an ultrasonic bone scalpel with real-time pressure-sensitive digital display. This device places a pressure sensor at the tip of the scalpel, enabling real-time digital display of pressure. While these technologies introduce pressure sensing, they primarily focus on displaying pressure values ​​or simple force control. They fail to address the core safety issues of autonomous judgment and millisecond-level emergency braking at the moment of bone penetration, and also lack comprehensive perception of multi-dimensional forces (axial and lateral forces) and real-time bone layer identification capabilities based on artificial intelligence.

[0005] Therefore, in order to address the aforementioned technical problems, it is necessary to provide an intelligent surgical bone chisel device based on pressure sensing.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to provide an intelligent surgical bone chisel device based on pressure sensing, which can solve the problems of reliance on subjective feel and delayed response in traditional bone chisel surgery.

[0008] To achieve the above objectives, a specific embodiment of the present invention provides an intelligent surgical bone chisel device based on pressure sensing, including a handle, a blade assembly, a chisel head, a pressure sensing module, a control module, and a locking mechanism. The blade assembly is connected to the handle. The chisel head is detachably connected to the end of the blade assembly away from the handle. The pressure sensing module is located on the blade assembly and is used to detect the pressure exerted on the chisel head during cutting in real time. The control module is located inside the handle and electrically connected to the pressure sensing module, used to receive pressure signals and determine whether a preset cutting threshold has been reached. The locking mechanism is located inside the handle and corresponds to the blade assembly; the control module controls the locking mechanism to lock the feed movement of the blade assembly based on the determination result.

[0009] In one or more embodiments of the present invention, the tool holder assembly includes a connecting seat, a tool holder, and a mounting seat. The connecting seat is threadedly connected to the handle. The tool holder is slidably connected to the connecting seat, with one end of the tool holder disposed within the handle, and a rubber ring connected to the end of the tool holder located within the handle. The mounting seat is threadedly connected to the end of the tool holder away from the handle, and the bone chisel head is fixed to the tool holder via the mounting seat.

[0010] In one or more embodiments of the present invention, a limiting block is fixedly connected to the side wall of the tool holder, and an adjustment groove matching the limiting block is provided in the connecting seat.

[0011] In one or more embodiments of the present invention, the pressure sensing module is a miniature strain gauge pressure sensor array, which is attached or embedded in one end of the tool holder near the bone chisel head, for simultaneously detecting axial pressure and lateral bending moment.

[0012] In one or more embodiments of the present invention, the control module includes a microcontroller and a memory. The microcontroller is equipped with a bone layer determination algorithm based on support vector machine or long short-term memory network for real-time identification of tissue type, including cortical bone, cancellous bone, muscle or nerve tissue, and determines a cutting event when a sudden change in pressure gradient that conforms to the penetration characteristics is detected.

[0013] In one or more embodiments of the present invention, the handle is provided with a human-machine interaction module electrically connected to the control module, the human-machine interaction module including a display unit, an alarm unit and / or a light prompt unit.

[0014] In one or more embodiments of the present invention, the alarm unit includes a linear resonant actuator disposed inside the handle, and the control module controls the linear resonant actuator to generate vibrations of different frequencies or intensities according to different pressure ranges or alarm levels.

[0015] In one or more embodiments of the present invention, the handle is provided with a cavity, and a partition is provided in the cavity, the partition dividing the cavity into a trigger cavity and an active cavity.

[0016] In one or more embodiments of the present invention, the locking mechanism includes a miniature electromagnet, a locking pin, a spring, and a locking mechanism. The miniature electromagnet is disposed within the trigger cavity. The locking pin is slidable on the partition plate, corresponding to the miniature electromagnet, and one end of the locking pin corresponds to the rubber ring. A fixing ring is connected to the side wall of the movable cavity where the locking pin is located. The spring is disposed within the movable cavity and outside the locking pin.

[0017] In one or more embodiments of the present invention, a wireless communication module is further included, which is connected to the control module and is used to transmit real-time pressure data, alarm information and operation logs to an external display terminal or data server.

[0018] Compared with existing technologies, the intelligent surgical bone chisel device based on pressure sensing of the present invention can transform the doctor's subjective sense of touch into objective electronic signals and mechanical actions, realizing automatic emergency braking at the moment of bone cutting, which greatly improves surgical safety and avoids deep tissue damage caused by the doctor's slow reaction or dull sense of touch. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of an intelligent surgical bone chisel device based on pressure sensing according to an embodiment of the present invention. Figure 2 This is an exploded view of an intelligent surgical bone chisel device based on pressure sensing, according to an embodiment of the present invention. Figure 3 This is a cross-sectional view of an intelligent surgical bone chisel device based on pressure sensing in one embodiment of the present invention. Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle; Figure 5 for Figure 3 Schematic diagram of the structure at point B; Figure 6 This is a schematic diagram of the overall design logic of an intelligent surgical bone chisel device based on pressure sensing in one embodiment of the present invention. Figure 7 This is a circuit logic framework diagram of an embedded control system based on STM32WB55 in one embodiment of the present invention; Figure 8 This is a flowchart of the feature extraction and classification process of the real-time bone layer determination algorithm in one embodiment of the present invention; Figure 9 This is a cross-sectional view of the vibration coupling structure between the haptic feedback unit (LRA) and the handle housing in one embodiment of the present invention; Figure 10 This is a schematic diagram of the wireless communication topology between the device and the remote data monitoring station in one embodiment of the present invention.

[0021] Explanation of key figure labels: 1-Handle, 101-Display unit, 102-Cavity, 103-Baffle, 104-Microcontroller, 105-Memory, 106-Linear resonant actuator, 2-Tool bar assembly, 201-Connecting seat, 2011-Adjusting groove, 202-Tool bar, 2021-Limit block, 2022-Rubber ring, 203-Mounting seat, 3-Bone chisel head, 4-Locking mechanism, 401-Miniature electromagnet, 402-Locking pin, 403-Fixing ring, 404-Spring. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0023] like Figures 1 to 10 As shown, an intelligent surgical bone chisel device based on pressure sensing in one embodiment of the present invention includes a handle 1, a blade assembly 2, a bone chisel head 3, a pressure sensing module, a control module, and a locking mechanism 4.

[0024] The blade assembly 2 is connected to the front end of the handle 1. The bone chisel head 3 is detachably mounted on the end of the blade assembly 2 away from the handle 1. A pressure sensing module is located on the blade assembly 2 to detect the pressure exerted on the bone chisel head 3 during bone cutting in real time. A control module is built into the handle 1 and electrically connected to the pressure sensing module to receive pressure signals and determine whether a preset penetration threshold has been reached. A locking mechanism 4 is also located inside the handle 1 and corresponds to the rear end of the blade assembly 2. When the control module determines that a penetration event has occurred, it controls the locking mechanism 4 to momentarily lock the feed motion of the blade assembly 2.

[0025] In this embodiment, the handle 1 is made of medical-grade polymer materials, such as polyetheretherketone (PEEK) or lightweight titanium alloy, and its surface is treated with an anti-slip finish to accommodate prolonged gripping. The handle 1 is ergonomically designed, with an outer diameter preferably between 30-45 mm. The scalpel assembly 2 is made of high-strength stainless steel or titanium alloy, providing sufficient rigidity and fatigue resistance. Additionally, a power module is located within the handle 1. The handle 1 is equipped with a charging port, a power switch, and function buttons for easy operation by the doctor.

[0026] like Figures 2 to 5 As shown, the tool holder assembly 2 includes a connecting seat 201, a tool holder 202, and a mounting seat 203. The rear end of the connecting seat 201 is fixedly connected to the front end of the handle 1 by threads, and the connecting seat 201 is hollow inside to allow the tool holder 202 to pass through. The tool holder 202 is slidably inserted into the connecting seat 201, with its rear end extending into the interior of the handle 1, and a rubber ring 2022 is fitted at the rear end. The rubber ring 2022 is used to cooperate with the locking mechanism 4 to achieve braking.

[0027] Specifically, the front end of the shank 202 extends out of the connecting seat 201, and a mounting seat 203 is threadedly connected to its front end. After the tail of the bone chisel head 3 is inserted into the mounting seat 203, it is fixed by the fastening structure (such as a set screw or threaded cap) on the mounting seat 203, thereby realizing the detachable installation of the bone chisel head 3, which facilitates the replacement of different models or types of bone chisel heads 3.

[0028] In addition, a limiting block 2021 is integrally formed or fixedly sleeved on the side wall of the cutter bar 202, and an adjustment groove 2011 matching the limiting block 2021 is formed axially on the inner wall of the connecting seat 201. The limiting block 2021 is embedded in the adjustment groove 2011, which can slide along the adjustment groove 2011 and prevent the cutter bar 202 from rotating circumferentially, ensuring the stability of the bone chisel head 3 during cutting.

[0029] In this embodiment, the pressure sensing module employs a miniature strain gauge pressure sensor array, which is attached or embedded in the end of the shank 202 near the bone chisel head 3, such as the front end face of the shank 202 or the contact surface of the mounting base 203. This sensor array can simultaneously detect the axial pressure Fz and lateral bending moments Fx and Fy experienced by the cutting head. The sensing response frequency band covers the entire range from quasi-static cutting to high-frequency impact, accurately reproducing the interactive stress field between the cutting tip and bone tissue. The pressure sensing module is electrically connected to the control module within the handle 1 via a flexible circuit board or microwires.

[0030] like Figures 1 to 10 As shown, the control module includes a microcontroller 104 and a memory 105, both built into the handle 1. The microcontroller 104 is the main control unit based on the STM32WB series dual-core wireless microcontroller, which includes an Arm Cortex-M4 core and a Cortex-M0+ core. The Cortex-M4 core is responsible for handling high real-time force signal conditioning, feature extraction, and bone recognition algorithms, while the Cortex-M0+ core is dedicated to maintaining the Bluetooth Low Energy (BLE5.0) or Zigbee protocol stack. This hardware-level task isolation architecture effectively ensures the determinism of the control loop, keeps the signal delay within 10 milliseconds, and ensures the immediacy of feedback.

[0031] The microcontroller 104 is pre-programmed with a bone layer determination algorithm based on Support Vector Machine (SVM) or Long Short-Term Memory (LSTM) network. Through pre-training on a large amount of clinical cutting data (such as peak force, energy distribution, and frequency components), the system can identify the current tissue type (such as cortical bone, cancellous bone, muscle, or nerve tissue) in real time. When a sudden change in the pressure gradient that matches the penetration characteristics is detected, the microcontroller 104 determines it as a bone penetration event, immediately triggers the locking mechanism 4 for emergency braking, and sends a control command to the feedback module. In addition, the microcontroller 104 can also learn and optimize based on the changing trend of pressure data and historical cutting data, dynamically adjusting the penetration judgment threshold to improve adaptability and judgment accuracy in different surgical scenarios.

[0032] like Figures 1 to 10 As shown, a human-machine interaction module is also provided on the outer wall of the handle 1, which includes a display unit 101, an alarm unit, and a light indicator unit. The display unit 101 adopts an OLED display screen or an LED digital tube and is electrically connected to the microcontroller 104 to display information such as the current pressure value, set threshold, battery level, and working status in real time.

[0033] The alarm unit includes a linear resonant actuator 106, embedded inside the handle 1 near the handgrip. The microcontroller 104 controls the linear resonant actuator 106 to generate vibrations of different frequencies or intensities based on different pressure ranges or alarm levels, such as approaching a threshold, reaching a threshold, or a puncture event, to deliver warning information to the doctor through tactile feedback. Specifically, when pressure is detected to be close to a preset threshold (e.g., reaching 80% of the threshold), intermittent low-frequency vibrations (e.g., a 170-180Hz resonant mode) are emitted to alert the doctor; when a puncture event triggers emergency braking, continuous high-frequency, strong vibrations are emitted. Simultaneously, an indicator light unit (which can be integrated into the edge of the display unit 101 or set independently) distinguishes the status using different colors (e.g., green for normal, yellow for warning, red for danger) or flashing frequencies, facilitating rapid identification in noisy surgical environments.

[0034] like Figures 3 to 5 As shown, the handle 1 has a cavity 102 inside, and a partition 103 is provided inside the cavity 102, which divides the cavity 102 into a trigger cavity and an active cavity. The locking mechanism 4 is disposed inside the cavity 102.

[0035] The locking mechanism 4 includes a miniature electromagnet 401, a locking pin 402, a retaining ring 403, and a spring 404. The miniature electromagnet 401 is fixed to the inner wall of the trigger chamber, with its movable core facing the locking pin 402. The locking pin 402 is slidably inserted into the central hole of the partition 103. One end of the locking pin 402, located inside the trigger chamber, is opposite to and coaxially arranged with the movable core of the miniature electromagnet 401. The other end of the locking pin 402 extends into the movable chamber and is opposite to the rubber ring 2022 at the rear end of the cutter bar 202. In the initial state, a small gap is left between the locking pin 402 and the rubber ring 2022 to ensure that the cutter bar 202 can slide freely during normal cutting, i.e., feeding.

[0036] In addition, a retaining ring 403 is fixedly connected to the side wall of the movable cavity where the locking pin 402 is located, and a spring 404 is located inside the movable cavity and outside the locking pin 402. The spring 404 is always in a compressed state and can apply an elastic force to the retaining ring 403, so that the locking pin 402 makes slight contact with the movable iron core of the miniature electromagnet 401 or maintains a very small gap.

[0037] When the microcontroller 104 determines that a penetration event has occurred, it immediately sends a trigger signal to the miniature electromagnet 401. The miniature electromagnet 401 is instantly energized, and its movable iron core quickly pops out, striking the locking pin 402. This pushes the locking pin 402 against the elastic force of the spring 404. The locking pin 402 then presses against the rubber ring 2022, thereby quickly locking the axial feed motion of the cutter bar 202 and preventing it from continuing to penetrate deeper into the tissue due to inertia or the operator's failure to stop in time. This process is completed in milliseconds, much faster than the human body's reaction speed. When the electromagnet is de-energized, the spring 404 pushes the locking pin 402 back to its original position, and the locking pin 402 disengages from locking the cutter bar 202.

[0038] In addition, the bone chisel device also includes a wireless communication module that uses Bluetooth 5.0 or Zigbee protocol to connect to the microcontroller 104. This module is used to transmit real-time pressure data, alarm information and operation logs to an external display terminal (such as a large screen in the operating room or a tablet computer) or a data server, which is convenient for teaching, recording and remote consultation.

[0039] Case Study 1: Lamography with Fenestration in Spinal Surgery In spinal surgery involving laminectomy or decompression, the surgeon places the bone chisel device of this invention on the target bone surface and gently taps the end of the handle with a surgical hammer, gradually advancing the blade into the bone tissue. During this advancement, the pressure sensing module continuously collects changes in the impact force and resistance experienced by the blade. When the blade is in a denser cortical bone region, the system detects a relatively high and stable pressure value; as the blade approaches the inner bone layer or the local bone layer thickness decreases, the pressure data shows a downward trend. The microcontroller 104 identifies the transition from cortical bone to cancellous bone using an SVM algorithm and immediately sends a warning vibration to the linear resonant actuator 106, while a yellow warning appears on the display unit 101. The surgeon then reduces the tapping force and reconfirms the blade's direction and depth. If a penetration risk occurs, the locking mechanism 4 instantly locks the blade shank 202, simultaneously emitting a red light and high-frequency vibration, effectively reducing the risk of accidental entry into the spinal canal, damage to the dural sac, or adjacent nerve tissue.

[0040] Case Study 2: Mandibular Osteotomy in Oral and Maxillofacial Surgery In oral and maxillofacial surgery, specifically alveolar bone trimming or mandibular osteotomy, surgeons install narrower blades to precisely cut local bone tissue, depending on the surgical area. Due to the complex anatomy of the maxillofacial region and its proximity to the inferior alveolar nerve and blood vessels, changes in blade force are highly valuable for intraoperative assessment. The device displays pressure curves and bone density thermograms in real time. When the cutting resistance of the blade gradually decreases from high to low, accompanied by a short-term increase in fluctuation, the microcontroller 104 determines that the blade may be approaching a bone boundary or weak area, and immediately triggers the linear resonant actuator 106 to generate intermittent vibration, displaying a warning on the display unit 101. Upon receiving this warning, the surgeon can promptly adjust the cutting direction or replace the blade with a smaller one, thereby improving operational accuracy and reducing the possibility of accidental damage to the inferior alveolar nerve and surrounding soft tissues.

[0041] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0042] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0043] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0044] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0045] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent surgical bone chisel device based on pressure sensing, characterized in that, include: handle; A tool holder assembly is connected to the handle; A bone chisel head is detachably connected to the end of the tool holder assembly away from the handle; A pressure sensing module is mounted on the tool holder assembly and is used to detect the pressure on the bone chisel head during cutting in real time. The control module, located inside the handle, is electrically connected to the pressure sensing module and is used to receive pressure signals and determine whether a preset cutting threshold has been reached. A locking mechanism is provided inside the handle and corresponds to the tool holder assembly. The control module controls the locking mechanism to lock the feed motion of the tool holder assembly according to the judgment result.

2. The intelligent surgical bone chisel device based on pressure sensing according to claim 1, characterized in that, The tool holder assembly includes: The connecting seat is threadedly connected to the handle; A tool holder is slidably connected to the connecting seat, one end of the tool holder is located inside the handle, and a rubber ring is connected to the end of the tool holder located inside the handle; A mounting base is threaded to the end of the tool holder away from the handle, and the bone chisel head is fixed to the tool holder by the mounting base.

3. The intelligent surgical bone chisel device based on pressure sensing according to claim 2, characterized in that, The tool holder sidewall is fixedly connected to a limiting block, and the connecting seat is provided with an adjustment groove that matches the limiting block.

4. The intelligent surgical bone chisel device based on pressure sensing according to claim 2, characterized in that, The pressure sensing module is a miniature strain gauge pressure sensor array, which is attached or embedded at one end of the tool holder near the bone chisel head, and is used to simultaneously detect axial pressure and lateral bending moment.

5. The intelligent surgical bone chisel device based on pressure sensing according to claim 1, characterized in that, The control module includes a microcontroller and a memory. The microcontroller is equipped with a bone layer determination algorithm based on support vector machine or long short-term memory network, which is used to identify tissue type in real time, including cortical bone, cancellous bone, muscle or nerve tissue, and to determine a cutting event when a sudden change in pressure gradient that meets the penetration characteristics is detected.

6. The intelligent surgical bone chisel device based on pressure sensing according to claim 1, characterized in that, The handle is equipped with a human-machine interaction module electrically connected to the control module. The human-machine interaction module includes a display unit, an alarm unit, and / or a light prompt unit.

7. The intelligent surgical bone chisel device based on pressure sensing according to claim 6, characterized in that, The alarm unit includes a linear resonant actuator, which is located inside the handle. The control module controls the linear resonant actuator to generate vibrations of different frequencies or intensities according to different pressure ranges or alarm levels.

8. The intelligent surgical bone chisel device based on pressure sensing according to claim 2, characterized in that, The handle has a cavity, and a partition is provided inside the cavity, which divides the cavity into a trigger cavity and an active cavity.

9. The intelligent surgical bone chisel device based on pressure sensing according to claim 8, characterized in that, The locking mechanism includes: A miniature electromagnet is disposed within the trigger cavity; A locking pin is slidable on the partition plate, the locking pin corresponds to the miniature electromagnet, and one end corresponds to the rubber ring; A retaining ring is connected to the side wall of the locking pin located in the movable cavity; A spring is located inside the movable cavity and outside the locking pin.

10. The intelligent surgical bone chisel device based on pressure sensing according to claim 1, characterized in that, It also includes a wireless communication module, which is connected to the control module and is used to transmit real-time pressure data, alarm information and operation logs to an external display terminal or data server.

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