73 results about "Skin flap" patented technology

The invention provides a preparation method of a composite artificial flap with a bionic structure and function induction activity. The preparation method comprises the following steps: S1, preparing an epidermis induction layer; s2, preparing a dermis functional remodeling layer; s3, preparation of a vascularization integration substrate layer; and S4, three-layer compounding and sterilization. Through an epidermis-basilar membrane-dermis three-layer integrated structure, a micron-nano multistage gradient pore and basilar membrane belt adhesion structure of natural skin is accurately simulated, and the problems of epidermis-dermis layering and non-uniform cell infiltration of an existing skin flap are solved.

The invention provides a multi-degree-of-freedom double-arm skin flap retraction robot which comprises a multi-source sensing system, driving systems, a supporting frame and at least two skin flap supporting arms, the driving systems are installed on the supporting frame, each skin flap supporting arm is connected with one driving system, and the driving systems are installed on the supporting frame. The driving system drives the skin flap supporting arm to advance, retreat, lift and pitch, and the multi-source sensing system comprises a spatial position and posture sensing unit and a force touch sensing unit. Each skin flap supporting arm is provided with a spatial position and posture sensing unit and a force touch sensing unit which can monitor the configuration change and the stress state of the skin flap supporting arm in real time. The skin flap retractor has the advantages that dynamic supporting and retraction of skin flap tissue can be achieved, it is guaranteed that the surgical field is fully exposed, meanwhile, single-point tissue compression and trauma risks caused by a traditional retractor are reduced, manpower resources are saved, operation safety is guaranteed, and retraction efficiency and stability are improved.

The utility model relates to the technical field of medical instruments, in particular to an elastic pull-fit patch for skin wounds, which comprises two elastic patches, a centering structure is arranged between the two elastic patches, and the centering structure comprises a fixing groove frame and two pull-fit belts. The two pulling belts are fixedly connected with the two elastic stickers respectively; by means of the centering structure, when the device is fixed to the wound of a patient, a cotton ball covers the middle of the wound, then a rotating button is rotated, a rotating rod drives a small gear to rotate, due to the fact that the outer surface of the small gear is meshed with gear racks on the two sides, pulling-closing belts on the two sides can slide in a fixing groove frame, and therefore elastic stickers on the two sides are driven to symmetrically cover the two sides of the wound; when the elastic pastes on the two sides reach proper positions, the elastic pastes stop rotating, the covering films on the two sides are torn down, the elastic pastes on the two sides are pasted on the skin of a patient, and therefore the purpose that the pulling pastes can be symmetrically pasted on the two sides of a wound and skin flaps on the two sides can be aligned when the pulling pastes are tensioned is achieved.

The invention discloses a skin flap transplantation post-operation blood supply disorder dynamic monitoring device based on an MEMS capacitive sensor and a using method, the device comprises a fitting layer and a sensor layer, the fitting layer is of a three-layer structure, and stable fitting and biocompatibility of the device and a skin flap area are achieved; the sensor layer comprises a signal monitoring module and a signal transmission module, the signal monitoring module forms an array by a plurality of capacitive sensing units, and skin flap tissue swelling is converted into a capacitance signal with position identification through the MEMS parallel plate capacitance principle; after being processed and converted, the capacitance signal is wirelessly transmitted to external equipment through low-power-consumption Bluetooth. And medical personnel judge the blood supply disorder and the occurrence area after the skin flap operation based on the capacitance signal change trend. The device disclosed by the invention integrates miniaturization and integration, can monitor in real time, reduces manpower consumption, provides data support for early intervention of blood supply disorder, and is suitable for post-operation clinical monitoring of skin flap transplantation.

A flap transplantation constant temperature monitoring device disclosed by the present invention is characterized in that the flap transplantation constant temperature monitoring device comprises a base, a monitoring mechanism and a constant temperature mechanism, a control table and a support are fixedly installed above the base, a humidifier is arranged on one side of the support, and the monitoring mechanism comprises a cover body fixedly installed on one side of the support; a plurality of gooseneck pipes are installed in the cover body, temperature measuring modules are arranged at the bottoms of the gooseneck pipes, and an adjusting groove is formed in the bottom of the cover body; the constant temperature mechanism comprises a first lead screw rotationally installed on one side in the adjusting groove, a sliding rod is fixedly installed on the other side of the adjusting cavity, a sliding rail is slidably installed between the first lead screw and the sliding rod, a second lead screw is rotationally installed in the sliding rail, a second motor is arranged on one side of the sliding rail, and a sliding block is slidably installed in the sliding rail. Heating plates are arranged at the bottoms of the sliding blocks; the skin flap area appearance image automatic acquisition, continuous temperature monitoring and intelligent constant-temperature warm keeping functions can be integrated into a monitoring device.

The application discloses a kind of free skin flap postoperative nursing scheme evaluation and early warning method based on multi-modal monitoring data fusion, it is related to intelligent medical care technical field, for solving the problem that existing monitoring cannot distinguish vascular pathological crisis and nursing environment interference.First, a multi-dimensional time-varying state matrix containing physiological drive and nursing environment characteristics is constructed, realizing the time sequence alignment of heterogeneous data;Subsequently, the pressure-flow conduction characteristics are analyzed, and the blood flow conduction efficiency index reflecting the inherent patency of blood vessels is extracted;At the same time, a physical gain mapping is established based on nursing parameters, and the theoretical target perfusion trajectory under the current nursing state is deduced;Finally, the dynamic residual vector is calculated and combined with the conduction efficiency index for joint determination, accurately identifying vascular structural occlusion and functional inhibition of nursing program, achieving accurate tracing of postoperative crisis and dynamic evaluation of nursing program.

This invention relates to the field of medical device technology, and more particularly to an intelligent probe patch for monitoring blood circulation in microscopic free flaps, comprising: a disposable probe patch configured to be attached to the surface or edge of the free flap; a biocompatible adhesive layer is provided on the bottom surface of the flexible base of the disposable probe patch, and an auxiliary structure is provided on the top of the flexible base to resist postoperative tissue activity or secretions; the disposable probe patch integrates an optical sensing unit and a temperature sensing unit for collecting local blood oxygen saturation, pulse rate, and surface temperature of the flap, respectively; a repeater, establishing non-contact near-field coupling with the disposable probe patch, the repeater being configured to provide working power to the disposable probe patch through near-field coupling, enabling it to operate without a built-in battery; and synchronously receiving physiological parameter data reflecting the local microcirculation status of the flap collected by the disposable probe patch; and a terminal device, wirelessly connected to the repeater, receiving and processing the physiological parameter data.

A skin flap retractor device comprises a handle, a retractor mechanism and an adjusting mechanism. The retractor mechanism comprises a first retractor and a second retractor, which are movably arranged at the head end of the handle. The adjusting mechanism comprises a linkage, a first connecting rod and a second connecting rod. The linkage is provided with a first leg and a second leg. The first connecting rod is hingedly connected at one end to the first leg and at the other end to the first retractor. The second connecting rod is hingedly connected at one end to the second leg and at the other end to the second retractor. The head end is provided with a first arc-shaped slide rail and a second arc-shaped slide rail. The first leg passes through the first arc-shaped slide rail, and the second leg passes through the second arc-shaped slide rail. The linkage is rotatable relative to the head end. When the linkage is rotated by an operating assistant, the first leg and the second leg on the linkage drive the first connecting rod and the second connecting rod to move, and then drive the first retractor and the second retractor to move towards each other or away from each other. The interval is easy to adjust, the operating cost and time can be effectively saved, and the manpower and material resources can be reduced.

An exemplary cochlear implant system includes a cochlear implant and a processing unit communicatively coupled with the cochlear implant. The cochlear implant may include a first optical element implanted within a recipient and positioned toward an inner surface of a skin flap of the recipient. The processing unit may cause an optical signal transmission between the first optical element and a second optical element included in an external device positioned toward outer surface of the skin flap relative to the first optical element. The optical signal transmission may include a transmission of an optical signal through the skin flap between the inner surface and the outer surface of the skin flap. Based on the optical signal transmission, one or more properties associated with the skin flap of the recipient may be determined.

A system includes an ultrasound device configured to generate sound waves for use in generating data indicating a measurement of a thickness of a skin flap of a recipient. A method includes determining a location of a measurement of a thickness of a skin flap of the recipient based on a current or expected location of an implantable device underneath the skin flap, and generating the measurement of the thickness of the skin flap using the ultrasound device. A computer-readable storage medium includes instructions stored thereon that cause one or more processors to generate the measurement of the thickness of the skin flap of the recipient based on sonic waves applied to the skin flap, and to generate an indication of whether one or more configurations of an external device are able to be retained on the skin flap based on the measurement.

The invention discloses a method for detecting the activity of skin flap endonuclease 1 based on double cascade signal amplification. Belongs to the technical field of enzyme activity detection. According to the invention, the specific dumbbell probe is designed; when the skin flap endonuclease 1 exists in the sample to be detected, the skin flap endonuclease 1 can be detected; a flap endonuclease 1 specifically recognizes and cuts off a 5'overhanging flap in the dumbbell probe to generate a single-stranded DNA with a 3 '-OH terminal and a dumbbell-shaped DNA with a notch, two products generated by cutting respectively trigger rolling circle amplification and strand displacement amplification reactions, specific signals are amplified, the purpose of sensitive detection is achieved, the substrate utilization rate is 100%, no probe is wasted, and the detection cost is reduced. The method is carried out under isothermal and homogeneous conditions, does not need high-precision thermal circulation and separation steps, does not need to prepare a functional nano material, does not relate to a biological coupling procedure, effectively reduces the analysis cost and complexity, and provides a technical support for the detection of the activity of the skin flap endonuclease 1.

The present invention provides a flap inspection device and a flap inspection method that can detect the separation of the outer flap from the inner flap with high precision. [Solution] A flap inspection device 10 according to one embodiment inspects a packaged body C having an inner flap that covers a part of the opening, and an outer flap that covers a part of the opening not covered by the inner flap and a part of the inner flap. The flap inspection device 10 includes a step detection sensor 13 that detects the step difference between the surface of the outer flap and the surface of the inner flap, and an abnormality determination unit 21 that determines that there is an abnormality if the value of the step detected by the step detection sensor 13 is greater than or equal to a threshold.

FIELD: plastic surgery.SUBSTANCE: under aseptic conditions and endotracheal anesthesia, hydropreparation of the subcutaneous fat tissue is performed with 0.04% ropivacaine solution 60.0 ml with adrenaline 1:100000, a skin incision in the area of the submammary groove of the mammary gland of 3.5–4.0 cm in length is made, the tissues are dissected layer by layer to the fascia of the pectoralis major muscle. A dissection is performed in the Chassignac space to the level of the lower pole of the areola or an incision is made in the skin in the area of the mammary gland along the lower semicircle of the areola, the tissues are perpendicularly dissected layer by layer to the fascia of the pectoralis major muscle. Next, dissection is performed in the Chassignac space to the level of the submammary groove, and the lateral edge of the right pectoralis major muscle is isolated. The retropectoral pocket for the implant is formed using blunt and sharp methods. The lower medial bundle of the pectoralis major muscle is mobilized to the level of 4 o'clock on a conventional clock dial for the right breast and to the level of 8 o'clock on a conventional clock dial for the left breast. Partial vertical myotomy of the free muscle flap is performed. The distal fragments of the pectoralis major muscle are fixed at three points to the posterior surface of the gland with an atraumatic Vikryl 2-0 thread at the level of the nipple-areolar complex. A silicone implant is placed into the formed pocket, and the implant is evenly distributed and centered within it.EFFECT: preventing uncontrolled cranialization of the pectoralis major muscle flaps during vertical myotomy in dual-plane augmentation mammoplasty.1 cl, 2 ex

The present application relates to a kind of skin flap massager capable of detecting edema, including support, support is provided with two parallel mounting plates, mounting plate is equipped with slide rail, fixed seat is slidably installed on slide rail, each mounting plate is fixedly provided with eye ring;At least one massage device is installed on fixed seat;Massage device includes lead screw motor, the body of lead screw motor is fixed on fixed seat, vertical hole is vertically provided on fixed seat, the lead screw of lead screw motor is connected with massage head after passing through vertical hole, pressure sensor is arranged at the bottom of massage head;Pressure sensor and lead screw motor are connected with microprocessor, microprocessor drives lead screw motor to rotate and records lead screw motor rotation data, microprocessor is provided with edema detection process and massage process, detects skin flap edema and massages skin flap;Microprocessor controls the motion frequency of massage process according to instruction.The device detects the edema of skin flap after bandaging, and can massage skin flap simultaneously.

Methods and systems for evaluating tissue health of a recipient comprising receiving a measuring command at a sensor comprising at least one light emitting diode (LED) and a light detector are disclosed. The method further comprises emitting one or more light beams from the at least one LED in a direction of a medical device wherein the medical device is implanted subcutaneously or percutaneously in the recipient. The light detector receives one or more reflected light beams. The intensity of the reflected light beams from the light detector is measured and is used to determine an oxygen saturation value.

The invention provides a multilayer artificial skin flap containing a built-in nutritional blood vessel and a preparation method of the multilayer artificial skin flap, and belongs to the technical field of tissue engineering and regenerative medicine. The artificial skin flap is sequentially provided with a first decellularized meat pulp matrix layer, a nutritional blood vessel, a fabric layer and a second decellularized meat pulp matrix layer from top to bottom. The nutrition blood vessel can construct a nutrition delivery channel for surrounding tissues, and promote rapid proliferation of cells and formation of a new blood vessel network; the decellularized meat pulp matrix layer provides a bionic microenvironment and supports cell adhesion, migration and growth; the fabric layer plays a role in enhancing mechanical support and simultaneously endows the flap with good stitchability and tear resistance; in addition, the nutritional blood vessel and the fabric layer are both made of degradable filaments, the degradation period can be regulated and controlled according to needs, and space and mechanical support smooth transition is vacated for tissue growth. The artificial skin flap has excellent biocompatibility, controllable degradability, active vascularization ability and proper mechanical properties, and is suitable for full-thickness skin defect repair and soft tissue regeneration engineering.

The application discloses a kind of local tissue oxygen saturation detection systems for postoperative free flap, including front-end flexible detection module and rear-end signal processing module;Front-end flexible detection module includes the flexible packaging layer of flexible material and the interface layer of being arranged on packaging layer, the material of interface layer is hydrogel mixture, and the detection circuit for being encapsulated in packaging layer is used to detect the blood oxygen saturation of human tissue;Rear-end signal processing module is connected with the front-end flexible detection module, and the rear-end signal processing module processes the signal detected by the front-end flexible detection module, and the local tissue oxygen saturation information is obtained by calculating detection signal.This application is all designed with flexibility, avoids the mechanical damage of detection part to measurement site, so that the sensing part can better adhere to the surface of human skin, improve the accuracy of measurement and the comfort of patient.

The invention provides a flap fixing device for thyroid surgery, which comprises a neck support body, a flap fixing device, a flap fixing device, a flap fixing device and a flap fixing device, and is characterized in that the neck support body is internally provided with a negative pressure generating device; each fixing assembly comprises a fixing part and a flexible part, a negative pressure bending part is further arranged on each flexible part, each fixing assembly is connected to the negative pressure generation device through a flexible negative pressure pipe, and the first suction cups, the second suction cups and the negative pressure bending parts are all communicated with the negative pressure pipes. The negative-pressure bending piece is configured to be in a stretching state when communicating with atmospheric pressure and can be bent when communicating with negative pressure so as to drive the end, away from the fixing piece, of the flexible piece to be bent in the direction away from the second face, and in this way, the first suction cup can be sucked to the neck skin to provide supporting force; therefore, supporting structures such as a fixing frame do not need to be arranged, the situation that the fixing frame and the like hinder operation is avoided, damage to the skin flap is smaller compared with a mode of clamping the skin flap by fixing the skin flap through the suction cup, and damage to the skin flap can be reduced.

The invention provides a head and neck braking tool after an oral flap transplantation operation, relates to the technical field of braking tools, and solves the problems that most braking tools are bandages for directly binding and limiting the neck and the head of a patient, so that the neck and the head of the patient are lack of an effective adjusting structure, and the neck and the head of the patient cannot be effectively adjusted. In order to solve the problems that the neck and the head of a patient need to be adjusted only after a constraint is detached again, and then normal treatment of the patient is affected, when the height of a head sleeve is adjusted, an adjusting push rod installed in a supporting seat can be synchronously started to adjust the elevation angle degree of the neck sleeve and the head sleeve, so that the height of the head sleeve is adjusted. The purpose of facilitating follow-up adjustment and use is achieved by adjusting the elevation angle of the head sleeve and the elevation angle of the neck sleeve, the purpose of facilitating follow-up use can be achieved through the design, the purpose of facilitating rehabilitation training use of a patient can be achieved by adjusting the elevation angle of the head sleeve and the elevation angle of the neck sleeve, and then the purpose of being more practical is achieved.

The invention discloses a tongue cancer precise operation planning and flap transplantation system and method based on multi-mode XR interaction, and relates to the technical field of operation navigation, and the method comprises the steps: obtaining a tongue image through thin-layer CT scanning, building a tongue body three-dimensional surface model, carrying out the denoising through Laplace smoothing and Gaussian filtering, and extracting the blood vessel distribution through CT angiography or ultrasonic imaging. Mapping to a three-dimensional tongue body surface model, calculating an initial cutting path score, generating an optimized path, and screening an optimal skin flap unit based on a Voronoi graph matching algorithm; through thin-layer CT, three-dimensional modeling and XR interaction, the tongue body model precision, the blood vessel registration accuracy and the dynamic adjustment efficiency of the operation path are improved, the path is optimized through Transform, infrared positioning and Voronoi diagram matching are combined, sufficient blood supply of skin flaps is ensured, and the accuracy and success rate of tongue cancer operation are improved.

The utility model provides a post-operation supporting device for a leg flap, which belongs to the field of medical instruments and comprises a supporting frame body, a leg fixing component and a foot fixing component. The supporting frame body comprises a bottom plate and U-shaped supporting frames fixedly connected to the front end and the rear end of the bottom plate. A plurality of through holes are formed in the height direction of the U-shaped supporting frames fixedly installed at the front end and the rear end respectively, the guiding frame is installed in a matched mode, multi-stage adjustment of the height of the supporting plate is achieved, the guiding frame and the supporting plate are slidably connected, and the individual requirements of patients of different body types are met; the foot fixing assembly provides stable supporting force for the feet of the patient through the synergistic effect of a supporting belt and a limiting belt, limb slippage can be effectively prevented, the height of the supporting belt and the height of the limiting belt are adjustable, medical staff can accurately control the lifting height of the feet of the patient, and the lifting angle of the affected limb is adjusted.

Mechanoneural Interfaces (MIs) and methods of forming MIs are provided, including cutaneous mechanoneural interfaces (CMIs) and proprioceptive mechanoneural interfaces (PMIs). A CMI includes a device in operative arrangement with a muscle actuator to stimulate muscle contraction, the muscle actuator disposed in a substantially circumferential configuration about a skin flap that includes a native or regenerative neurovascular structure of an amputated body segment. A PMI includes an actuator mechanically linked to a muscle end organ and configured to apply a force to the muscle end organ, the actuator including a synthetic actuator or a biological muscle actuator. The muscle end organ is of an agonist-antagonist muscle pair and can include at least one of a native or regenerative neurovascular structure. CMIs and PMIs can each further include a controller configured to provide a stimulation signal or operate an actuator based on a signal received from a sensor of a prosthetic device.

The application discloses a kind of free skin flap postoperative nursing scheme evaluation and early warning method based on multi-modal monitoring data fusion, it is related to intelligent medical care technical field, for solving the problem that existing monitoring cannot distinguish vascular pathological crisis and nursing environment interference.First, a multi-dimensional time-varying state matrix containing physiological drive and nursing environment characteristics is constructed, realizing the time sequence alignment of heterogeneous data;Subsequently, the pressure-flow conduction characteristics are analyzed, and the blood flow conduction efficiency index reflecting the inherent patency of blood vessels is extracted;At the same time, a physical gain mapping is established based on nursing parameters, and the theoretical target perfusion trajectory under the current nursing state is deduced;Finally, the dynamic residual vector is calculated and combined with the conduction efficiency index for joint determination, accurately identifying vascular structural occlusion and functional inhibition of nursing program, achieving accurate tracing of postoperative crisis and dynamic evaluation of nursing program.

The invention relates to the technical field of medical instruments, and particularly discloses a flap monitoring device, system and method.The flap monitoring device comprises a movable chassis, a longitudinal moving mechanism and a transverse moving mechanism are arranged on the movable chassis, a mechanical arm is arranged on the longitudinal moving mechanism, and a flap monitoring mechanism is arranged at the telescopic end of the mechanical arm and used for scanning the body posture and flap area of a patient; a flap monitoring system is further arranged at the telescopic end of the mechanical arm, the moving mechanism can be controlled to adjust the posture of the mechanical arm based on posture characteristics, preliminary positioning matched with the body position of a patient is achieved, and the flap monitoring system is controlled to conduct secondary data collection after preliminary positioning. And the longitudinal moving mechanism and the transverse moving mechanism are controlled to perform position adjustment according to an acquisition result, so that accurate alignment and all-dimensional scanning of the skin flap area are finally completed, and the technical problems of heavy workload of nursing personnel and low monitoring efficiency caused by the fact that existing skin flap monitoring equipment needs to be manually pushed to a sickbed are solved.

This invention discloses a flap support material for cochlear implantation surgery and its preparation method, relating to the field of medical polymer materials technology. The material comprises the following components by weight: 80 parts matrix phase, 8-10 parts hydrogen-containing silicone oil, 0.2-0.4 parts platinum catalyst, 18-28 parts bioactive filler phase, 5-8 parts core-shell methyl methacrylate-butadiene-styrene terpolymer, 0.3-0.5 parts coupling agent, 3-5 parts vinyl β-cyclodextrin quaternary ammonium salt, 0.3-0.5 parts sodium heparin, 0.5-0.8 parts sodium alginate, 0.3-0.8 parts functional additives, and 1-2 parts crosslinking agent. This material exhibits good biocompatibility, excellent mechanical properties, and good aging resistance.

This invention relates to the field of medical monitoring equipment technology, specifically disclosing a magnetically positioned flap monitoring device, system, and method. The invention achieves a stable fit between the medical adhesive layer on the bottom surface of the base dressing layer and the skin surface of the flap area. Utilizing the magnetic attraction between the first magnet group on the magnetic docking ring and the second magnet group on the flexible sensing patch, a modular sensing connection architecture that can be repeatedly assembled and disassembled is constructed. This solves the problems of traditional adhesive tape or suture fixation methods, which are prone to probe slippage due to skin sweating or changes in body position, causing monitoring interruptions. It also addresses the lack of a unified spatial positioning benchmark in multi-probe collaborative layouts, making it difficult to achieve systematic mapping of blood perfusion in the flap area. This improves the continuity and stability of postoperative flap monitoring and enhances the ability of the optical sensor array to capture information on the overall spatial distribution of blood perfusion in the flap.

This invention relates to the field of medical monitoring technology and discloses a joint intelligent assessment system for skin flap color and temperature. The system includes a multimodal data acquisition module for the flap, a surface attribute analysis module for the flap, a deep pathological inference module, and a dynamic survival status prediction module. It generates a data package with a unified spatiotemporal reference by simultaneously acquiring and fusing color texture images and infrared thermal imaging data. The system quantifies and analyzes the boundaries and parameters of abnormal color and temperature regions from the fused data, then calculates the spatial overlap and correlation between abnormal color and temperature regions, and generates inference vectors representing deep blood supply and metabolic status based on rules. A state evolution model is constructed by combining historical vector data to achieve dynamic prediction of the flap's survival status. This system realizes the objective and synchronized analysis of multimodal information on flap appearance and inference of deep pathological correlations, improving the accuracy and early warning capabilities of postoperative monitoring.

The invention relates to the technical field of CT (Computed Tomography) image analysis, in particular to an intelligent positioning system for an anterior lateral flap of a thigh based on CT angiography. The method comprises the following steps: firstly, extracting a cross section image forming a complete perforation form in a CT angiography image through a preliminary positioning module; further extracting an acquisition time-diameter curve of a penetrating branch in the analysis module; classifying the penetrating branches according to the similar fluctuation characteristics between the time-diameter curves of different penetrating branches; further obtaining a normal factor of each penetrating branch according to the relevance between the difference of the diameters of the penetrating branches of the same type and the difference of the injection distances; and finally, screening out fine penetrating branches based on normal factors. According to the scheme, by extracting the perforation positioning image, classifying the perforation by combining the time-diameter curve, analyzing the relevance between the diameter difference and the injection distance difference, calculating the normal factor and screening the fine perforation, the fine perforation can be distinguished more accurately, and the reliability of three-dimensional reconstruction and preoperative planning is improved.

The application relates to the technical field of medical devices, in particular to a skin flap transplantation postoperative state monitoring device and method, wherein the device comprises: a first acquisition module configured to acquire at least one of an impedance signal, a temperature signal and a PPG signal of a transplanted skin flap; an extraction module configured to perform feature extraction on the at least one of the impedance signal, the temperature signal and the PPG signal to obtain corresponding impedance time-frequency domain features, temperature time-frequency domain features and PPG time-frequency domain features; and an output module configured to input at least one of the impedance time-frequency domain features, the temperature time-frequency domain features and the PPG time-frequency domain features into a pre-trained skin flap transplantation postoperative state prediction model to output a state prediction result of the transplanted skin flap. Thus, the problems that in the related art, single signal sensing or only blood supply state is concerned, multiple physiological signals cannot be measured simultaneously, the state of the transplanted skin flap cannot be comprehensively monitored, and the transplanted skin flap postoperative complication cannot be accurately evaluated are solved.