A cesarean section surgical dynamic isolation system

Abstract

The present application relates to a kind of cesarean section operation dynamic isolation systems, belong to medical instrument technical field, including adaptive sealing assembly, which adopts shape memory composite structure to realize the dynamic fitting of organ surface in operation, significantly improve the stability of surgical field exposure;Efficient liquid management module with integrated fluid optimization channel and self-cleaning function can quickly remove blood and amniotic fluid mixture and avoid blockage;Tactile feedback support mechanism through multidimensional mechanics sensing and nonlinear damping adjustment, real-time inhibit excessive pulling operation, protect sensitive tissue;Central control module fusion deformation, liquid and mechanical multi-modal data, realize the whole process intelligent cooperation of intraoperative operation.The system can adapt to patient anatomic differences, while ensuring clear surgical field, reduce the risk of infection, shorten the operation time, its modular design takes into account rapid deployment and convenient sterilization, provide precise and reliable technical support for complex cesarean section surgery, significantly improve the safety and efficiency of operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a dynamic isolation system for cesarean section surgery. BACKGROUND

[0002] Cesarean section surgery is a key procedure to address obstetric emergencies such as dystocia and fetal distress. The clarity of the surgical field and the control of exudation directly affect the safety of the surgery and the prognosis of the patient. Currently, metal retractors and negative pressure suction devices are widely used as standard operating instruments in clinical practice. However, there are significant limitations: traditional retractors rely on manual adjustment by the operator, which is difficult to adapt in real time during dynamic anatomical changes such as uterine replacement and intestinal peristalsis, resulting in a high incidence of surgical field obstruction. In addition, the uneven distribution of contact pressure between the rigid instrument edge and the tissue surface can cause mechanical damage to the serosal layer. Furthermore, the gap between the instrument and the tissue can accumulate blood and amniotic fluid, which requires repeated suction operations, increasing the average operation time by 15-20 minutes and the risk of postoperative infection.

[0003] Existing exudate management techniques have obvious defects. Straight suction channels have insufficient fluid mechanics performance, with flow rate decreasing significantly with distance. Large particles can easily block the lumen, resulting in an exudate removal rate of less than 70% during surgery. Residual fluid may cause abdominal adhesions and infectious complications. More seriously, existing support devices lack real-time mechanical feedback mechanisms, and cannot provide active warnings when the pulling force exceeds the tolerance threshold of the uterine seromuscular layer, which may cause uterine laceration or damage to adjacent organs. The incidence of related complications is about 6%-8%.

[0004] Developing a new isolation system that integrates dynamic deformation adaptation, efficient exudate removal, and intelligent mechanical feedback has become an urgent need for upgrading obstetric surgical instruments. Such a system needs to achieve real-time fitting of the instrument shape to the tissue surface, an exudate removal rate of >95%, and reduce the risk of traction-related injury through mechanical feedback, thereby shortening the operation time and reducing postoperative complications, which has important clinical value in improving the safety of cesarean section surgery. SUMMARY

[0005] Therefore, the present application aims to provide a cesarean section surgery dynamic isolation system, which comprises a self-adaptive dynamic sealing assembly composed of a shape memory alloy and a porous elastic film, a high-efficiency liquid management module with a spiral tapered flow channel and a self-cleaning filter screen, an intelligent support mechanism with a magneto-rheological fluid damping joint and a multi-dimensional mechanical sensing array, and a central control system integrating deformation, mechanics and fluid multi-modal data, so as to solve the problems of high occlusion rate of the surgical field, low liquid removal efficiency and easy blockage of the linear suction flow channel, tissue damage caused by lack of real-time mechanical feedback of the support device, and complicated intraoperative operation steps and prolonged operation time caused by the traditional retractor unable to dynamically fit the curved surface of the organ.

[0006] The present application is realized by the following technical solutions:

[0007] A cesarean section surgery dynamic isolation system, comprising a dynamic deformation sealing assembly, a gradient negative pressure adsorption module, a tactile feedback support mechanism, and a central control module.

[0008] The dynamic deformation sealing assembly is composed of a shape memory alloy skeleton and a porous elastic film, and the edge thereof forms a self-adaptive curling sealing lip.

[0009] The gradient negative pressure adsorption module is arranged around the edge of the dynamic deformation sealing assembly and comprises a spiral tapered flow channel and a self-cleaning filter screen.

[0010] The tactile feedback support mechanism is connected to the back of the dynamic deformation sealing assembly through a magneto-rheological fluid damping joint, and the magneto-rheological fluid damping joint is internally provided with an annular excitation coil and a magneto-rheological fluid chamber.

[0011] The inlet section of the spiral tapered flow channel is in communication with the pores of the porous elastic film, and the outlet section of the spiral tapered flow channel is connected to an external negative pressure source through a flexible catheter.

[0012] The end of the tactile feedback support mechanism is provided with a quick disassembly and assembly interface, and the quick disassembly and assembly interface is fixedly connected to the surgical bed guide rail through a buckle structure.

[0013] Further, the shape memory alloy framework and the porous elastic film are formed into an alternating layer structure through micro laser welding, the porous elastic film is covered with a silver-loaded nano-antibacterial coating, and the self-adapting curling sealing lip is in a spiral curled state when not under pressure and is unfolded into a wavy shape to fit the surface after contacting the tissue.

[0014] Further, the spiral tapered flow channel comprises an inlet section, a transition section and an outlet section, the flow channel cross-sectional area of the inlet section is larger than that of the outlet section, the self-cleaning filter screen is covered at the front end of the inlet section, the bottom of the filter screen is connected with a piezoelectric vibration module, and the piezoelectric vibration module is electrically connected with the central control module through wires.

[0015] Further, the shell of the magneto-rheological fluid damping joint is made of medical stainless steel, and a three-dimensional torque sensing array is arranged in the shell, the three-dimensional torque sensing array is composed of a plurality of micro pressure sensors arranged in a matrix, and the micro pressure sensors are embedded in the contact surface of the magneto-rheological fluid damping joint.

[0016] Further, the central control module comprises a signal processing unit and a nonlinear stiffness adjusting unit, the signal processing unit receives real-time data of the three-dimensional torque sensing array, and the current intensity of the excitation coil is controlled through the nonlinear stiffness adjusting unit.

[0017] Further, the edge of the shape memory alloy framework is provided with a deformation guide groove, the cross section of the deformation guide groove is trapezoidal, the bottom of the deformation guide groove is arranged with a deformation trigger sensor, and the deformation trigger sensor is connected with the starting switch of the gradient negative pressure adsorption module.

[0018] Further, the porosity of the porous elastic film is 70-75%, and the pore size is distributed in a gradient decreasing manner from inside to outside, and the thickness of the silver-loaded nano-antibacterial coating is 10-15 microns.

[0019] Further, the quick disassembly and assembly interface comprises a locking clamping groove and an elastic fastener, the sidewall of the locking clamping groove is provided with anti-skid lines, and the elastic fastener is reversibly fixed with the operating bed guide rail through a spring pin.

[0020] The beneficial effects of the present application are that:

[0021] The application sets an integrated surgical isolation system with dynamic deformation fitting structure, intelligent liquid seepage management structure and real-time mechanical protection structure, through the sealing assembly of self-adaptive fitting organ surface, the problem of surgical field obstruction caused by the traditional instrument unable to dynamically match the anatomical form is effectively solved; through the fluid optimization channel and self-cleaning mechanism, the in-surgery liquid seepage removal efficiency is significantly improved and the risk of blockage is avoided; through multi-dimensional mechanical sensing and active feedback adjustment, sensitive tissues are protected in real time from excessive pulling damage. The system integrates an intelligent control module to realize the whole-process collaborative management of in-surgery operation, while ensuring clear surgical field and reducing infection risk, the operation time is greatly shortened. The modular design takes into account the rapid deployment in surgery and efficient sterilization after surgery, significantly improves the operation safety and operation convenience, provides precise and reliable technical support for complex cesarean section surgery, and has important clinical value. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is an assembly structure diagram;

[0023] Figure 2 is an assembly structure front view;

[0024] Figure 3 is an assembly structure top view;

[0025] Figure 4 is a gradient negative pressure adsorption module sectional view;

[0026] Figure 5 is a magneto-rheological fluid damping joint sectional view;

[0027] Figure 6 is a porous elastic membrane structure diagram;

[0028] Figure 7 is a central control module internal structure diagram.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1, dynamic deformation sealing assembly; 101, shape memory alloy framework; 102, porous elastic membrane; 103, self-adaptive curling sealing lip; 1011, deformation guide groove; 1012, optical fiber deformation sensor; 2, gradient negative pressure adsorption module; 201, spiral tapered flow channel; 204, self-cleaning filter screen; 205, piezoelectric vibration module; 3, tactile feedback support mechanism; 301, magneto-rheological fluid damping joint; 302, three-dimensional torque sensing array; 3021, micro pressure sensor; 303, quick disassembly and assembly interface; 3011, excitation coil; 3012, magneto-rheological fluid cavity; 3013, universal joint; 4, central control module; 401, signal processing unit; 402, nonlinear stiffness adjustment unit; 403, alarm unit. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0033] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the above description of the present application, it should be noted that the terms "one side", "the other side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] In addition, the term "same" and the like do not mean that the components must be absolutely the same, but there can be slight differences. The term "vertical" only means that the positional relationship between the components is relatively more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0036] As Figures 1-7 shown, an embodiment provided by the present application: a cesarean section surgery dynamic isolation system includes a dynamic deformation sealing assembly 1, a gradient negative pressure adsorption module 2, a tactile feedback support mechanism 3 and a central control module 4.

[0037] Structure and function realization of dynamic deformation sealing assembly 1

[0038] The dynamic deformation sealing assembly 1 is composed of a shape memory alloy framework 101 and a porous elastic film 102. The edge of the shape memory alloy framework 101 is connected with the porous elastic film 102 through micro-laser welding to form an alternating layer structure. The surface of the porous elastic film 102 is covered with an antibacterial coating, which has the functions of antibiosis and liquid seepage filtration. The edge of the shape memory alloy framework 101 extends to form a self-adapting crimping sealing lip 103. In the initial state, the self-adapting crimping sealing lip 103 is in a tight spiral state. After contacting with tissues in the operation, the shape memory alloy framework 101 deforms under the body temperature and pressure to form a continuous wave-shaped surface, and the alternating contact between the wave crests and wave troughs realizes multi-point sealing, which significantly improves the uniformity of the surface.

[0039] The deformation guiding groove 1011 in the edge of the shape memory alloy framework 101 is embedded with an optical fiber deformation sensor 1012, which monitors the unfolding state of the self-adapting crimping sealing lip 103 in real time. When the unfolding angle reaches a preset threshold, the optical fiber deformation sensor 1012 triggers the gradient negative pressure adsorption module 2 to start. The back of the assembly 1 is connected with a tactile feedback support mechanism 3 through a universal joint 3013. The universal joint 3013 allows the assembly 1 to flexibly deflect with the displacement of the organ in the operation, ensuring the stability of the dynamic sealing.

[0040] Fluid dynamics design of the gradient negative pressure adsorption module 2

[0041] The spiral tapered flow channel 201 of the gradient negative pressure adsorption module 2 is arranged around the edge of the dynamic deformation sealing assembly 1. The inlet section of the spiral tapered flow channel 201 is connected with the porous elastic film 102 through precise welding, and the outlet section is connected to an external negative pressure source through a standard interface. The spiral tapered flow channel 201 adopts a tapered cross-sectional area design. The cross-sectional area of the inlet section is larger to accommodate a large flow of seepage liquid. The transition section reduces the retention through fluid acceleration, and the outlet section forms a high-speed jet flow to improve the discharge efficiency.

[0042] The self-cleaning filter screen 204 is arranged at the front end of the inlet of the flow channel 201 and adopts a high-strength microporous structure to intercept tissue debris. The filter screen 204 is integrated with a piezoelectric vibration module 205 at the bottom. The piezoelectric vibration module 205 periodically generates high-frequency vibrations during the operation to effectively remove the blockage on the surface of the filter screen. The vibration signal is intelligently controlled by the central control module 4. If the flow channel is abnormally blocked, the cleaning program can be triggered in advance.

[0043] Intelligent control of the tactile feedback support mechanism 3

[0044] The magnetorheological fluid damping joint 301 of the tactile feedback support mechanism 3 is fixed to the surgical bed guide rail through a quick disassembly and assembly interface 303. The magnetorheological fluid damping joint 301 is embedded with a ring-shaped excitation coil 3011 in the shell, and the cavity is filled with a magnetorheological fluid cavity 3012. The contact surface is arranged with a three-dimensional torque sensing array 302, which is composed of a plurality of groups of micro pressure sensors 3021 arranged densely. The three-dimensional torque sensing array 302 can collect the mechanical state of the support mechanism in real time.

[0045] When the lateral pulling force is detected to exceed the safety threshold, the central control module 4 immediately increases the current intensity of the excitation coil 3011, the viscosity of the magnetorheological fluid cavity 3012 increases significantly, and the joint stiffness is greatly increased to limit the displacement within a safe range. If the force value continues to exceed the standard, the system triggers an audible and light alarm and automatically releases the lock, and the support mechanism quickly retracts to release the tension. The quick disassembly interface 303 adopts a buckle design, which can be locked or disassembled by a single hand of the operator, significantly improving the efficiency of intraoperative deployment.

[0046] Multi-modal coordination logic of the central control module 4

[0047] The central control module 4 integrates signal processing, stiffness adjustment, and alarm functions. The signal processing unit 401 fuses the data of the fiber deformation sensor 1012, the three-dimensional torque sensing array 302, and the flow channel pressure in real time, and dynamically adjusts and controls the negative pressure adsorption strength and cleaning frequency through intelligent algorithms. The nonlinear stiffness adjustment unit 402 adjusts the current parameters of the magnetorheological fluid damping joint 301 based on the preset mechanical response curve, realizes the adaptive change of the support stiffness, and achieves the soft and conformable state in the initial stage to reduce the tissue compression, and the rigid and steep increase in the over-limit state to block the damage risk.

[0048] The alarm unit 403 detects the continuous over-limit force value or flow channel blockage, reminds the operator through a multi-level warning mechanism, and automatically executes the protection action, such as reducing the negative pressure or retracting the support arm.

[0049] Device usage steps

[0050] I. Preoperative preparation and device deployment

[0051] Before the operation starts, the surgical team needs to complete the following preparations:

[0052] Install the adaptive sealing device:

[0053] Connect the adaptive sealing device (composed of a shape memory alloy skeleton and a porous elastic film) to the end of the support arm through the universal joint. Align the quick buckle interface at the bottom of the support arm with the guide rail of the operating bed, press the locking button to complete the rigid fixation, and ensure that the device is stable and does not shake during the operation.

[0054] Check the initial state of the sealing lip: when not in use, it is in a tight spiral curl state, similar to a spring coil, ensuring that its surface is free of scratches or deformation.

[0055] Connect the negative pressure suction system:

[0056] Connect the intelligent negative pressure suction pipeline at the edge of the sealing device to the sterile waste liquid collection tank, check the pipeline interface sealing, and avoid air leakage. Start the negative pressure system, set the basic negative pressure value through the control panel, and the system automatically completes the self-check.

[0057] Calibration and function verification:

[0058] Turn on the central control module, calibrate the deformation sensor of the sealing lip and the mechanical feedback unit of the support arm. The operator manually presses the sealing lip to simulate the intraoperative pressure, observes whether it can be smoothly unfolded into a wavy shape, and triggers the negative pressure automatic start.

[0059] II. Intraoperative operation and dynamic cooperation

[0060] Place the sealing device and adapt to the fit:

[0061] The operator places the sealing device on the edge of the cesarean section incision on the uterine surface, and the contact pressure makes the spiral curled sealing lip gradually unfold. The sealing lip deforms into a continuous wavy structure under the action of body temperature and pressure, with alternating wave peaks and troughs fitting the tissue surface, forming a multi-point seal, significantly reducing the field obstruction of traditional retractors.

[0062] When the sealing lip is unfolded to the preset angle, the deformation sensor automatically activates the negative pressure suction system and starts to suck the exudate.

[0063] Exudate management and self-cleaning:

[0064] Intraoperative blood and amniotic fluid exudate enter the spiral flow channel through the gradient pores of the porous membrane. The inlet of the flow channel is wide to accommodate large flow of liquid, the transition section gradually reduces the cross-sectional area to accelerate the fluid, and the outlet section forms a high-speed jet to avoid liquid retention.

[0065] If the microporous filter screen at the inlet of the flow channel is blocked by tissue debris, the central control system periodically triggers the high-frequency vibration cleaning module to shake off the blockage through mechanical waves, keeping the flow channel unobstructed.

[0066] Real-time mechanical protection and feedback:

[0067] The mechanical sensing unit built into the support arm monitors the pulling force in real time during operation. If the operator pulls too hard, the system automatically enhances the joint damping, making the support arm "stiff" and limiting the displacement amplitude; if the force continues to exceed the standard, the device will issue an audible and visual warning and automatically retract the support arm to prevent the uterine serosa layer from tearing or adjacent organs from being damaged.

[0068] III. Postoperative treatment and device maintenance

[0069] Safe removal of the sealing device:

[0070] After the operation is completed, press the release button at the edge of the device to release the negative pressure suction. The sealing lip automatically recovers to the curled state under the action of body temperature, and the operator can easily remove it from the operating field, avoiding secondary tissue damage.

[0071] Unlock the quick buckle of the support arm and remove it from the operating bed guide rail.

[0072] Split cleaning and sterilization:

[0073] Disassemble the porous membrane and spiral flow channel of the sealing device, and separate the support arm joint module. The porous membrane and flow channel are subjected to high-temperature and high-pressure sterilization (135°C, 30 minutes), and the electronic components of the support arm are subjected to low-temperature plasma sterilization to ensure biological safety.

[0074] Check the deformation recovery ability of the sealing lip and the integrity of the filter screen, and replace the worn parts if necessary.

[0075] Deep integration of technical solutions and surgical procedures

[0076] Solve the occlusion of the surgical field:

[0077] Traditional retractors need to be manually adjusted in angle, while the self-adaptive sealing lip automatically adheres to the curved surface of the organ through deformation. Even if the uterus is reset or the intestinal tube is displaced during the operation, the wave-shaped structure can still dynamically compensate and maintain a clear surgical field.

[0078] Efficient liquid seepage control:

[0079] The fluid dynamics design of the spiral flow channel improves the seepage removal efficiency to 1.5 times that of traditional suction devices. Combined with the self-cleaning function, the position of the suction head does not need to be adjusted repeatedly during the operation, shortening the operation time.

[0080] Intelligent mechanical protection:

[0081] The mechanical feedback system acts as an "invisible assistant" that senses the operating force in real time and actively intervenes before excessive traction, reducing the risk of iatrogenic injury, especially for high-risk cases such as patients with placenta implantation or severe adhesion.

[0082] Technical effects of the device

[0083] Dynamic adhesion and surgical field optimization

[0084] Through the composite structure of shape memory alloy and elastic membrane, the sealing lip can automatically expand into a wave-shaped adhesion surface according to the dynamic changes of the curved surface of the organ during the operation, significantly improving the integrity and stability of the surgical field exposure. The occlusion rate of the surgical field caused by the rigid design of traditional retractors is reduced by about 80%, and the operator can obtain a clear view throughout the operation, especially for complex anatomical structures (such as patients with uterine fibroids or pelvic adhesion), reducing the operation errors caused by limited vision.

[0085] Efficient seepage management and self-cleaning mechanism

[0086] The spiral tapered flow channel combined with intelligent negative pressure control can quickly remove the mixed liquid of blood and amniotic fluid seeped during the operation, with a removal efficiency more than 50% higher than that of traditional linear suction devices. The self-cleaning filter screen actively removes blockages through high-frequency vibration, eliminating the need for manual intervention in flow channel maintenance during the operation, avoiding the extension of operation time caused by repeated adjustment of the suction head position, and reducing the risk of infection caused by seepage residue.

[0087] Real-time mechanical protection and safety control

[0088] The mechanical feedback system built-in support mechanism monitors the pulling force in operation in real time. When the force exceeds the safety threshold, the system automatically enhances the joint damping stiffness to limit the displacement amplitude, preventing the uterine serosa layer from tearing or adjacent organs (such as the bladder and intestine) from being damaged. If continuous over-limit operation is detected, the device triggers multi-level alarms and automatically retracts the support arm, providing double safety protection and reducing the incidence of iatrogenic injury to less than 1 / 3 of traditional instruments.

[0089] Intelligent collaboration and operation simplification

[0090] The central control module integrates multi-modal data such as deformation, mechanics, and flow, automatically adjusts the negative pressure intensity, cleaning frequency, and support stiffness, and realizes intelligent operation of "placement and operation". The operator does not need to adjust multiple independent devices, and can monitor the whole process through a unified control panel, significantly reducing the operation complexity and shortening the operation time by about 20%.

[0091] Modular design and infection control

[0092] Quick disassembly interface and split structure support efficient deployment during operation and convenient sterilization after operation. The contact parts such as sealing lips and flow channels can be disassembled and treated with high temperature and high pressure to avoid cross infection; the electronic module uses low-temperature plasma sterilization to ensure biological safety and prolong the service life of the device.

[0093] Clinical adaptability and reliability improvement

[0094] The system adapts to the anatomical differences of different patients (such as the thickness of the abdominal wall of obese patients and the degree of uterine distension in multiple pregnancies) through dynamic deformation and intelligent feedback mechanism, and maintains stable performance in complex surgical scenarios. The heat dissipation and sealing design ensures that the device does not overheat or have electromagnetic interference problems during long-term operation, and the reliability meets medical-grade standards.

[0095] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application, which should be covered by the claims of the present application.

Claims

1. A dynamic isolation system for caesarean section surgery, characterized by: The dynamic deformation sealing assembly, the gradient negative pressure adsorption module, the tactile feedback support mechanism and the central control module are included, The dynamic deformation sealing assembly is composed of a shape memory alloy framework and a porous elastic film, the edge of the shape memory alloy framework is extended to form a self-adapting curling sealing lip, the self-adapting curling sealing lip is in a spiral curling state when not under pressure, and is unfolded into a wave-shaped fitting surface after contacting with the tissue, The gradient negative pressure adsorption module is arranged around the edge of the dynamic deformation sealing assembly and includes a spiral tapered flow channel and a self-cleaning filter screen, The tactile feedback support mechanism is connected to the back of the dynamic deformation sealing assembly through a magneto-rheological fluid damping joint, the magneto-rheological fluid damping joint is internally provided with an annular excitation coil and a magneto-rheological fluid cavity, the magneto-rheological fluid cavity is filled with magneto-rheological fluid, the shell of the magneto-rheological fluid damping joint is made of medical stainless steel, and a three-dimensional torque sensing array is arranged in the shell, the three-dimensional torque sensing array is composed of a plurality of micro pressure sensors arranged in a matrix, and the micro pressure sensors are embedded in the contact surface of the magneto-rheological fluid damping joint, The central control module includes a signal processing unit and a nonlinear stiffness adjusting unit, the signal processing unit receives real-time data of the three-dimensional torque sensing array, and the current intensity of the excitation coil is controlled through the nonlinear stiffness adjusting unit, The inlet section of the spiral tapered flow channel is in communication with the pores of the porous elastic film, and the outlet section of the spiral tapered flow channel is connected to an external negative pressure source through a flexible conduit, The end of the tactile feedback support mechanism is provided with a quick disassembly and assembly interface, and the quick disassembly and assembly interface is fixedly connected with the operating bed guide rail through a buckle structure.

2. A dynamic isolation system for caesarean section surgery according to claim 1, characterized in that: The shape memory alloy framework and the porous elastic film form an alternating layer structure through micro laser welding, and the surface of the porous elastic film is covered with a silver-loaded nano antibacterial coating.

3. A caesarean section surgical dynamic isolation system according to claim 2, characterized in that: The spiral tapered flow channel includes an inlet section, a transition section and an outlet section, the flow channel cross-sectional area of the inlet section is larger than that of the outlet section, the self-cleaning filter screen is arranged at the front end of the inlet section, the self-cleaning filter screen is connected with a piezoelectric vibration module at the bottom, and the piezoelectric vibration module is electrically connected with the central control module through a lead wire.

4. A caesarean section surgical dynamic isolation system according to claim 3, characterized in that: The edge of the shape memory alloy framework is provided with a deformation guide groove, the cross section of the deformation guide groove is trapezoidal, and a deformation trigger sensor is arranged at the groove bottom of the deformation guide groove, and the deformation trigger sensor is interconnected with the starting switch of the gradient negative pressure adsorption module.

5. A caesarean section surgical dynamic isolation system according to claim 4, wherein The porosity of the porous elastic film is 70-75%, and the pore size is distributed in a gradient decreasing manner from inside to outside, and the thickness of the silver-loaded nano antibacterial coating is 10-15 microns.

6. A caesarean section surgical dynamic isolation system according to claim 5, wherein The quick disassembly and assembly interface includes a locking clamping groove and an elastic fastener, the sidewall of the locking clamping groove is provided with an anti-skid pattern, and the elastic fastener is reversibly fixed with the operating bed guide rail through a spring pin.

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