Cesarean section dynamic isolation system

Abstract

The invention relates to a caesarean section dynamic isolation system, and belongs to the technical field of medical instruments, the caesarean section dynamic isolation system comprises a self-adaptive sealing assembly, and the self-adaptive sealing assembly adopts a shape memory composite structure to realize dynamic fitting of organ curved surfaces in an operation, so that the exposure stability of an operation field is remarkably improved; a fluid optimization channel and an efficient seepage management module with a self-cleaning function are integrated, so that mixed liquid of blood and amniotic fluid can be quickly removed, and blockage is avoided; the tactile feedback supporting mechanism inhibits excessive traction operation in real time through multi-dimensional mechanical perception and nonlinear damping adjustment, and sensitive tissue is protected; the central control module fuses deformation, seepage and mechanical multi-mode data, and full-process intelligent collaboration of intraoperative operation is achieved. The system can adapt to anatomical differences of patients, the operation time is shortened while the clear operation field is guaranteed and the infection risk is reduced, rapid deployment and convenient sterilization are both considered through the modular design, accurate and reliable technical support is provided for the complex cesarean section operation, and the operation safety and operation efficiency are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a dynamic isolation system for cesarean section surgery. Background Art

[0002] Cesarean section surgery is a key surgical procedure for resolving obstetric critical situations such as dystocia and fetal distress. The clarity of the intraoperative field of view and the effect of effusion control directly affect the surgical safety and the prognosis of patients. Currently, the combination of metal retractors and negative pressure aspirators is widely used as the standard operating instruments in clinical practice, but there are significant limitations: Traditional retractors rely on the operator to manually adjust the position, and it is difficult to adapt in real time during dynamic anatomical changes such as uterine reduction and intestinal peristalsis, resulting in a relatively high incidence of surgical field occlusion. In addition, the contact pressure distribution between the rigid instrument edge and the tissue surface is uneven, which is likely to cause mechanical damage to the serosa layer. Moreover, the gap between the instrument and the tissue is prone to accumulate mixed effusion of blood and amniotic fluid, and repeated suction operations are required, which on average prolongs the operation time by 15 - 20 minutes, increasing the anesthesia risk and the probability of postoperative infection.

[0003] Existing effusion management technologies have obvious defects. Due to insufficient hydrodynamic performance, the flow rate of the linear suction channel significantly decays with the increase of distance, and large particles are likely to block the lumen, resulting in an effusion clearance rate during the operation of less than 70%, and the residual liquid may cause peritoneal adhesions and infectious complications. More seriously, the existing support devices lack a real-time mechanical feedback mechanism, and cannot actively give an alarm when the pulling force during the operation exceeds the tolerance threshold of the uterine seromuscular layer, which may lead to uterine rupture or damage to adjacent organs, and the incidence of related complications is about 6% - 8%.

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

[0005] In view of this, the object of the present invention is to propose a dynamic isolation system for cesarean section surgery. By setting up an integrated device that simultaneously includes an adaptive dynamic sealing component composed of a shape memory alloy and a porous elastic membrane, an efficient liquid seepage management module composed of a spiral tapered flow channel and a self-cleaning filter, an intelligent support mechanism linked by a magnetorheological fluid damping joint and a multi-dimensional mechanical sensing array, and a central control system that integrates deformation, mechanical and fluid multi-modal data, the problems in the prior art are solved, such as the traditional retractor cannot dynamically fit the organ surface, resulting in a high rate of surgical field occlusion, low efficiency of liquid seepage clearance in the straight suction channel and easy blockage, lack of real-time mechanical feedback in the support device leading to tissue traction injury, and cumbersome intraoperative operation steps prolonging the operation time. Through the temperature-driven deformation of the shape memory alloy to achieve adaptive fitting of the anatomical surface, combined with the hydrodynamic optimization and self-cleaning mechanism of the spiral flow channel to improve the liquid seepage clearance efficiency, using the non-linear stiffness adjustment characteristics and real-time mechanical feedback of the magnetorheological fluid to construct an intraoperative active protection system, and finally forming an integrated surgical isolation system that can dynamically maintain a clear surgical field, efficiently remove liquid seepage and actively prevent iatrogenic injuries, meeting the urgent clinical needs for high-precision and high-safety cesarean section surgery.

[0006] The present invention is realized through the following technical solutions:

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

[0008] The dynamic deformation sealing component is composed of a shape memory alloy skeleton and a porous elastic membrane, and its edge forms an adaptive curling sealing lip;

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

[0010] The tactile feedback support mechanism is connected to the back of the dynamic deformation sealing component through a magnetorheological fluid damping joint, and the magnetorheological fluid damping joint is internally provided with an annular excitation coil and a magnetorheological fluid cavity;

[0011] The inlet section of the spiral tapered flow channel is communicated with the pores of the porous elastic membrane, 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 snap structure.

[0013] Furthermore, the shape memory alloy framework and the porous elastic film form an alternating layer structure through micro-laser welding. The surface of the porous elastic film is coated with a silver-loaded nano antibacterial coating. The adaptive curling sealing lip is in a spiral curled state when not pressed, and unfolds into a wavy fitting surface after contacting the tissue.

[0014] Furthermore, the spiral tapered flow channel includes an inlet section, a transition section, and an outlet section. The cross-sectional area of the flow channel in the inlet section is larger than that in the outlet section. The self-cleaning filter screen covers the front end of the inlet section. The bottom of the filter screen is connected to a piezoelectric vibration module, and the piezoelectric vibration module is electrically connected to the central control module through a wire.

[0015] Furthermore, the outer shell of the magnetorheological fluid damping joint is made of medical stainless steel. A three-dimensional torque sensing array is arranged inside it. 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 magnetorheological fluid damping joint.

[0016] Furthermore, the central control module includes a signal processing unit and a non-linear stiffness adjustment unit. The signal processing unit receives the real-time data of the three-dimensional torque sensing array and controls the current intensity of the excitation coil through the non-linear stiffness adjustment unit.

[0017] Furthermore, a deformation guiding groove is provided at the edge of the shape memory alloy framework. The cross-section of the deformation guiding groove is trapezoidal. A deformation trigger sensor is arranged at the bottom of the deformation guiding groove, and the deformation trigger sensor is interlocked with the start switch of the gradient negative pressure adsorption module.

[0018] Furthermore, the porosity of the porous elastic film is 70 - 75%, and the pore diameter decreases in a gradient from the inside to the outside. The thickness of the silver-loaded nano antibacterial coating is 10 - 15 microns.

[0019] Furthermore, the quick disassembly and assembly interface includes a locking card slot and an elastic fastener. The side wall of the locking card slot is provided with anti-slip lines, and the elastic fastener is reversibly fixed to the operating table guide rail through a spring pin.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention provides an integrated surgical isolation system with a dynamic deformation fitting structure, an intelligent fluid leakage management structure, and a real-time mechanical protection structure. Through a sealing component that adaptively fits the organ surface, it effectively solves the problem of surgical field occlusion caused by the inability of traditional instruments to dynamically match the anatomical shape. Through fluid-optimized channels and self-cleaning mechanisms, it significantly improves the efficiency of intraoperative fluid leakage removal and avoids the risk of blockage. Through multi-dimensional mechanical perception and active feedback adjustment, it protects sensitive tissues from excessive stretching damage in real time. The system integrates an intelligent control module to achieve full-process collaborative management of intraoperative operations, ensuring a clear surgical field, reducing the risk of infection, and significantly shortening the surgical time. Its modular design takes into account rapid intraoperative deployment and efficient postoperative sterilization, significantly improving surgical safety and operational convenience, providing precise and reliable technical support for complex cesarean section surgeries, and having important clinical value. Description of the Drawings

[0022] Figure 1 It is an overall assembly structure diagram;

[0023] Figure 2 It is a front view of the overall structure;

[0024] Figure 3 It is a top view of the overall structure;

[0025] Figure 4 It is a cross-sectional view of the gradient negative pressure adsorption module;

[0026] Figure 5 It is a cross-sectional view of the magnetorheological fluid damping joint;

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

[0028] Figure 7 It is an internal structure diagram of the central control module.

[0029] Description of the Reference Numerals:

[0030] 1. Dynamic deformation sealing component; 101. Shape memory alloy framework; 102. Porous elastic membrane; 103. Adaptive curling sealing lip; 1011. Deformation guiding groove; 1012. Fiber optic 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. Magnetorheological fluid damping joint; 302. Three-dimensional torque sensing array; 3021. Micro pressure sensor; 303. Quick disassembly and assembly interface; 3011. Excitation coil; 3012. Magnetorheological fluid cavity; 3013. Universal joint; 4. Central control module; 401. Signal processing unit; 402. Nonlinear stiffness adjustment unit; 403. Alarm unit. Detailed Embodiments

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0032] Therefore, the detailed description of the embodiments of the present invention provided in the drawings below is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0033] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0034] In the above description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, terms such as "first" and "second" are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

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

[0036] As Figure 1-7 shown, an embodiment provided by the present invention: A dynamic isolation system for cesarean section surgery 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 the dynamic deformation sealing assembly 1

[0038] The dynamic deformation sealing component 1 is composed of a shape memory alloy skeleton 101 and a porous elastic membrane 102. The edge of the shape memory alloy skeleton 101 is micro-laser welded to the porous elastic membrane 102 to form an alternating layer structure. The surface of the porous elastic membrane 102 is covered with an antibacterial coating, which has the dual functions of antibacterial and exudate filtration. The edge of the skeleton 101 extends to form an adaptive curling sealing lip 103, which is in a tightly coiled spiral state in the initial state. After contacting the tissue during the operation, the skeleton 101 undergoes superelastic deformation under body temperature and pressure, and unfolds into a continuous wavy fitting surface, achieving multi-point sealing through the alternating contact of the wave crests and wave troughs, significantly improving the fitting uniformity.

[0039] The fiber optic deformation sensor 1012 is embedded in the deformation guiding groove 1011 at the edge of the skeleton 101 to real-time monitor the unfolding state of the sealing lip 103. When the unfolding angle reaches the preset threshold, the sensor 1012 triggers the gradient negative pressure adsorption module 2 to start. The back of the component 1 is connected to the tactile feedback support mechanism 3 through a universal joint 3013. The universal joint 3013 allows the component 1 to deflect flexibly with the displacement of the organ during the operation, ensuring the stability of dynamic fitting.

[0040] Hydrodynamic 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 component 1. Its inlet section 2011 is connected to the porous elastic membrane 102 through precision welding, and the outlet section 2013 is connected to an external negative pressure source through a standard interface. The 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 exudate. The transition section reduces the retention by accelerating the fluid, and the outlet section forms a high-speed jet to improve the discharge efficiency.

[0042] The self-cleaning filter screen 204 covers the front end of the inlet of the flow channel 201 and intercepts tissue debris with a high-strength microporous structure. The piezoelectric vibration module 205 is integrated at the bottom of the filter screen 204, generating high-frequency vibrations periodically 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 an abnormal blockage of the flow channel is detected, the cleaning program can be triggered in advance.

[0043] Intelligent mechanical 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 operating table guide rail 5 through a quick disassembly and assembly interface 303. The outer shell of the joint 301 is embedded with a ring-shaped excitation coil 3011, and the cavity is filled with magnetorheological fluid 3012. Its contact surface is arranged with a three-dimensional torque sensing array 302, which is composed of a dense arrangement of multiple groups of micro pressure sensors 3021 to real-time collect the mechanical state of the support mechanism.

[0045] When it is detected that the lateral tensile force exceeds the safety threshold, the central control module 4 immediately increases the current intensity of the excitation coil 3011, and the viscosity of the magnetorheological fluid 3012 increases significantly, greatly enhancing the joint stiffness and restricting the displacement within a safe range. If the force value continues to exceed the standard, the system triggers an audible and visual alarm and automatically unlocks, and the support mechanism quickly retracts to release the tension. The quick disassembly and assembly interface 303 adopts a snap-fastener design, and the operator can complete locking or disassembly with one hand, significantly improving the intraoperative deployment efficiency.

[0046] Multi-modal collaborative 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 deformation sensor 1012, torque sensing array 302, and flow channel pressure data in real time, and dynamically adjusts the negative pressure adsorption intensity and cleaning frequency through intelligent algorithms. The non-linear stiffness adjustment unit 402 accurately adjusts the current parameters of the magnetorheological fluid joint 301 based on the preset mechanical response curve, realizing the adaptive change of the support stiffness - compliant fitting in the initial stage to reduce tissue compression, and a sharp increase in rigidity in the over-limit state to block the risk of injury.

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

[0049] Device usage steps

[0050] I. Preoperative preparation and equipment deployment

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

[0052] Install the adaptive sealing device:

[0053] Connect the adaptive sealing device (composed of a shape memory alloy skeleton and a porous elastic membrane) to the end of the support arm through a universal joint. Align the quick snap interface at the bottom of the support arm with the surgical bed rail, and press the locking button to complete the rigid fixation to 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 tightly coiled spiral shape, similar to a spring coil, and ensure that its surface has no scratches or deformations.

[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 sealing performance of the pipeline interface to avoid air leakage. Start the negative pressure system, set the basic negative pressure value through the control panel, and the system automatically completes self-checking.

[0057] Calibration and function verification:

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

[0059] II. Intraoperative Operations and Dynamic Collaboration

[0060] Placement of the Sealing Device and Adaptive Fitting:

[0061] The operator gently places the sealing device on the uterine surface at the edge of the cesarean section incision. The contact pressure causes the spirally coiled sealing lip to gradually unfold. Under the action of body temperature and pressure, the sealing lip deforms into a continuous wavy structure, with the peaks and valleys alternately fitting the tissue surface, forming a multi-point seal and significantly reducing the obstruction of the surgical field by traditional retractors.

[0062] When the sealing lip unfolds to the preset angle, the deformation sensor automatically activates the negative pressure suction system to start aspirating exudate.

[0063] Exudate Management and Self-Cleaning:

[0064] During the operation, the blood and amniotic fluid exuded enter the spiral flow channel through the gradient pores of the porous membrane. The inlet of the flow channel is wide to accommodate a large flow of liquid. The cross-sectional area of the transition section gradually decreases to accelerate the fluid, and a high-speed jet is formed at the outlet section 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 and keep 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 during the operation in real time. If the pulling force of the operator is too large, the system automatically increases the joint damping, making the support arm "stiff" and restricting the displacement amplitude; if the force continues to exceed the standard, the device emits an audible and visual warning and automatically retracts the support arm to prevent tearing of the uterine serosa or damage to adjacent organs.

[0068] III. Postoperative Treatment and Equipment Maintenance

[0069] Safe Removal of the Sealing Device:

[0070] After the operation, press the release button on the edge of the device to release the negative pressure adsorption. The sealing lip automatically returns to the coiled state under the action of body temperature, and the operator can easily remove it from the surgical field to avoid secondary tissue damage.

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

[0072] Separate 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 the flow channel are sterilized by high temperature and high pressure (135°C, 30 minutes), and the electronic components of the support arm are sterilized by low-temperature plasma 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 problem of surgical field occlusion:

[0077] Traditional retractors need to be manually adjusted in angle, while the adaptive sealing lip automatically fits the organ surface through deformation. During the operation, even if the uterus is reset or the intestinal tract is displaced, the wavy structure can still dynamically compensate and maintain a clear surgical field.

[0078] Efficient control of exudate:

[0079] The hydrodynamic design of the spiral flow channel improves the exudate clearance efficiency to 1.5 times that of traditional aspirators. Combined with the self-cleaning function, there is no need to repeatedly adjust the position of the suction head during the operation, shortening the operation time.

[0080] Intelligent mechanical protection:

[0081] The mechanical feedback system acts as an "invisible assistant", perceiving the operating force in real time and actively intervening before excessive traction, reducing the risk of iatrogenic injury, especially suitable for high-risk cases (such as patients with placenta accreta or severe adhesions).

[0082] Technical effects of the device

[0083] Dynamic fitting and surgical field optimization

[0084] Through the composite structure of shape memory alloy and elastic membrane, the sealing lip can automatically expand into a wavy fitting surface according to the dynamic changes of the organ surface during the operation, significantly improving the integrity and stability of 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 surgeon can obtain a clear view throughout the operation, especially suitable for complex anatomical structures (such as patients with uterine fibroids or pelvic adhesions), reducing operation errors caused by limited vision.

[0085] Efficient exudate 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 exuded during the operation, and the clearance efficiency is increased by more than 50% compared with traditional linear aspirators. The self-cleaning filter screen actively removes blockages through high-frequency vibration. There is no need for manual intervention in the maintenance of the flow channel during the operation, avoiding prolonging the operation time due to repeated adjustment of the suction head position, and at the same time reducing the infection risk caused by exudate residue.

[0087] Real-time Mechanical Protection and Safety Control

[0088] The mechanical feedback system built into the support mechanism monitors the traction force during operation in real time. When the force exceeds the safety threshold, the system automatically enhances the joint damping stiffness, restricts the displacement amplitude, and prevents the tearing of the uterine serosa layer or the damage of adjacent organs (such as the bladder and intestinal tract). If continuous over-limit operation is detected, the device triggers multi-level alarms and automatically retracts the support arm, forming a double safety guarantee and reducing the incidence of iatrogenic injuries to less than 1 / 3 of that of traditional instruments.

[0089] Intelligent Collaboration and Simplified Operation

[0090] The central control module integrates multi-modal data such as deformation, mechanics, and flow rate, and automatically adjusts the negative pressure intensity, cleaning frequency, and support stiffness to achieve intelligent operation of "ready to run upon placement". The operator does not need to be distracted to adjust multiple independent devices and can monitor the entire 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] The quick-disassembly interface and split structure support efficient deployment during the operation and convenient sterilization after the operation. Contact components such as the sealing lip and flow channel can be disassembled separately and subjected to high-temperature and high-pressure treatment to avoid cross-infection; the electronic module is sterilized by low-temperature plasma, ensuring biological safety and extending 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 abdominal wall thickness differences in obese patients and the degree of uterine dilation in multiple pregnancies) through a dynamic deformation and intelligent feedback mechanism, and maintains stable performance in complex surgical scenarios. The heat dissipation and sealing design ensure that the device has no overheating or electromagnetic interference problems during long-term operations, and the reliability reaches the medical-grade standard.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A cesarean section dynamic isolation system, characterized by: It includes a dynamic deformation sealing component, a gradient negative pressure adsorption module, a tactile feedback support mechanism and a central control module; The dynamic deformation sealing component is composed of a shape memory alloy skeleton and a porous elastic membrane, and its edge forms an adaptive curling sealing lip; The gradient negative pressure adsorption module is disposed around the edge of the dynamic deformation sealing component, and includes a spiral tapered flow channel and a self-cleaning filter; The tactile feedback support mechanism is connected to the back of the dynamic deformation sealing component through a magnetorheological fluid damping joint, and the magnetorheological fluid damping joint has a built-in annular excitation coil and a magnetorheological fluid cavity; The inlet section of the spiral tapered flow channel is connected to the pores of the porous elastic membrane, and the outlet section of the spiral tapered flow channel is connected to an external negative pressure source through a flexible conduit; A quick-disassembly interface is provided at the end of the tactile feedback support mechanism, and the quick-disassembly interface is fixedly connected to the operating table guide rail via a snap-fit ​​structure.

2. A cesarean section dynamic isolation system according to claim 1, characterized in that: The shape memory alloy skeleton and the porous elastic membrane are welded by micro-laser to form an alternating layer structure. The surface of the porous elastic membrane is covered with a silver-loaded nano-antibacterial coating. The adaptive curled sealing lip is in a spiral curled state when not under pressure, and unfolds into a wavy fitting surface after contacting the tissue.

3. A cesarean section 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 covers the front end of the inlet section. The bottom of the filter is connected to a piezoelectric vibration module, and the piezoelectric vibration module is electrically connected to the central control module through a wire.

4. A cesarean section dynamic isolation system according to claim 3, characterized in that: The shell of the magnetorheological fluid damping joint is made of medical stainless steel, and a three-dimensional torque sensing array is arranged inside it. 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 magnetorheological fluid damping joint.

5. A cesarean section dynamic isolation system according to claim 4, characterized in that: The central control module includes a signal processing unit and a nonlinear stiffness adjustment unit. The signal processing unit receives real-time data of the three-dimensional torque sensing array and controls the current intensity of the excitation coil through the nonlinear stiffness adjustment unit.

6. A cesarean section dynamic isolation system according to claim 5, characterized in that: The edge of the shape memory alloy skeleton is provided with a deformation guiding groove, the cross section of the deformation guiding groove is trapezoidal, a deformation triggering sensor is arranged at the bottom of the deformation guiding groove, and the deformation triggering sensor is linked to the starting switch of the gradient negative pressure adsorption module.

7. A cesarean section dynamic isolation system according to claim 6, characterized in that The porosity of the porous elastic membrane is 70-75%, and the pore size is distributed in a gradient decreasing manner from the inside to the outside. The thickness of the silver-loaded nano antibacterial coating is 10-15 microns.

8. A cesarean section dynamic isolation system according to claim 7, characterized in that The quick disassembly and assembly interface includes a locking slot and an elastic fastener. The side wall of the locking slot is provided with anti-slip textures. The elastic fastener is reversibly fixed to the operating table guide rail through a spring pin.

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