361 results about "Blood supply" patented technology

The invention is a delivery catheter, e.g., a guide catheter, having an imaging element in proximity to the distal end of the catheter. Catheters of the invention are able to placement of the catheter in proximity to an ostium, thereby increasing the efficiency of contrast delivery while reducing the risk of ischemia due to blocked blood supply. The invention additionally assists in maintaining catheter position during delivery of a fluid from the catheter, resulting in better performance with less fluid. For example, a catheter of the invention can be used to produce improved fluoroscopic images with less overall contrast. This improvement reduces the risk of an allergic reaction to the contrast while decreasing the length of time for a procedure, i.e., because of a need to re-contrast.

Systems and methods are disclosed for diagnosis, risk assessment, and / or virtual treatment assessment of visceral ischemia and related disorders. One method includes receiving a patient-specific anatomic model of a patient's visceral vasculature, including visceral vasculature of the patient's visceral organs and bowel; determining a location in the patient-specific anatomic model of the patient's visceral vasculature; determining, for the location in the patient-specific anatomic model, a blood flow characteristic of blood flow through the location in the patient-specific anatomic model of the patient's visceral vasculature; determining a tissue region of the patient's bowel proximate the location in the patient-specific anatomic model of the patient's visceral vasculature; and generating an assessment of blood supply adequacy to the tissue region of the patient's bowel based on the determined blood flow characteristic and an expected blood flow characteristic associated with the tissue region of the patient's bowel.

The invention relates to the technical field of intelligent medical systems, and discloses a cerebral apoplexy onset risk assessment and reminding method and system.The method comprises the steps that continuous medical structured detection data are collected, and the data comprise carotid artery blood flow parameters, brain oxygen saturation, heart rate variability and metabolic indexes; inputting a bidirectional LSTM, a differential convolutional network, a wavelet residual network and a multi-layer perceptron to extract nonlinear features; constructing a neural function coupling structure diagram of four nodes of cerebral blood supply, oxygen supply, autonomous regulation and metabolic steady state; calculating inter-node time sequence offset correlation and a stable factor to obtain a coupling anomaly coefficient; and driving the embedded network by using a graph structure and a node feature input mechanism, and outputting a risk state assessment result. According to the method, the neural function coupling structure diagram is constructed and the mechanism is introduced to drive the embedded network, so that high-precision identification of the multi-system collaborative abnormal state and dynamic evaluation of the stroke risk level are realized.

The invention discloses a brain health monitoring and cerebral infarction early warning method and system for old people. The method comprises the steps that electroencephalogram, electrocardio, blood oxygen and cerebral blood flow velocity multi-mode physiological signal data are collected; adopting a characteristic mode decomposition method to decompose the multi-mode physiological signal data; the method comprises the following steps: introducing a KAN network into an MATE structure, carrying out nonlinear mapping and feature reconstruction, and constructing a KAMATE model; an improved Bayesian optimization algorithm is obtained based on the Bayesian optimization algorithm in combination with a dynamic balance strategy; the improved Bayesian optimization algorithm is combined with the characteristic mode decomposition method to achieve characteristic decomposition of the multi-mode physiological signals, and parameters of the KAMATE model are optimized; dividing the brain health state into four grades according to a prediction result output by the KAMATE model; according to the invention, real-time early warning of abnormal cerebral blood supply, cognitive decline and cerebral infarction high-risk states of the elderly can be realized, intelligent support is provided for health management of the elderly, and the method has important application value.

The invention discloses a method for controlling the compaction degree of a left heart and a right heart in an extracorporeal circulation operation, which comprises the following steps of: in an in-vitro environment, mounting a peristaltic pump at a left heart inlet and a right heart inlet of an extracorporeal circulation device; a liquid inlet of the peristaltic pump is connected with a liquid inlet pump, and a liquid outlet of the peristaltic pump is connected with a liquid outlet pump; and finally, a first pressure measuring structure and a second pressure measuring structure are arranged on the sides, away from the peristaltic pump, of the liquid inlet pump and the liquid outlet pump correspondingly, and the pressure of the liquid inlet pump and the pressure of the liquid outlet pump are adjusted to be-20 mmHg. The negative pressure of the liquid inlet pump is adjusted through the first pressure measuring structure, and the negative pressure of the liquid outlet pump is adjusted through the second pressure measuring structure, so that the purpose of quantifying the adjusting mode is achieved, and the adjusting mode is accurate, rapid and high in reliability; the peristaltic pump can effectively avoid the occurrence of risks such as blood component damage, hemolysis, gas embolism and the like caused by reduction of the amount of blood conveyed by the pump, insufficient blood supply or direct interruption of blood circulation due to the condition that a pipe body connected with the peristaltic pump is shrunken or cannot be sucked during an operation.

The invention discloses application of MUC12 gene in preparation of drugs for reducing rectal cancer liver metastasis, and belongs to the technical field of medical biology. According to the invention, the clear relation between colorectal cancer liver metastasis and fructose metabolism reprogramming is revealed from a molecular mechanism for the first time. The invention provides a brand-new therapeutic target and strategy by determining the brand-new transfer promoting factor MUC12 and the mediated fructose metabolism regulation effect thereof. Different from the traditional therapy only aiming at the strategies of tumor cell proliferation, blood supply and the like, the method disclosed by the invention intervenes aiming at a tumor nutrition metabolic pathway, and can weaken the metabolic adaptation and proliferation capacity of metastatic tumor cells in the liver more specifically. Experimental results show that the functions of targeted inhibition of MUC12 or downstream fructose metabolism key enzymes KHK and ALDOB thereof can significantly reduce the invasion and metastasis ability of tumor cells, and at the same time, normal growth of primary tumors cannot be significantly affected.

The invention provides application of active decapeptide in preparation of a medicine for preventing or treating cerebral apoplexy, and belongs to the technical field of biological medicine, the active decapeptide with the amino acid sequence as shown in SEQ ID NO.1 is applied to prevention or treatment of cerebral apoplexy for the first time, the active decapeptide can effectively inhibit formation of cerebral thrombosis of zebra fish with ischemic cerebral apoplexy, and the active decapeptide can be used for preventing or treating cerebral apoplexy. The brain blood flow supply is recovered; meanwhile, the active decapeptide can significantly reduce the hemorrhagic area and hemorrhagic rate of the zebra fish brain with hemorrhagic stroke, repair brain vascular injury and inhibit the occurrence and development of hemorrhagic stroke. In addition, the active decapeptide has small toxic and side effects, and is of great significance for improving the clinical curative effect of cerebral apoplexy and reducing the medication risk when being used for research and development of novel drugs for resisting cerebral apoplexy.

The utility model relates to an intravascular stent, a stent system and a windowing area adjusting method, a stent body section is provided with a stent body inner cavity with two through ends, a branch window penetrating through the stent body inner cavity is formed in the side wall of the stent body section, and the branch window is located on the side wall of the first end of the stent body section and formed to the end side of the first end of the stent body section; the pipe body section is provided with a pipe body inner cavity with two through ends, and one end part of the pipe body section is connected with the second end part of the frame body section, so that the pipe body inner cavity is communicated with the frame body inner cavity. The branch windows of the two intravascular stents can be spliced into a complete closed window, and the overlapped length of the two intravascular stents can be adjusted to adapt to the actual sizes of the three branches on the arch to construct a windowing area with a proper size, so that the blood supply of the three branches on the arch is ensured. When the stent is used for interventional operation, in-vitro windowing or in-situ windowing is not needed, and when the stent is used for open operation, the number of anastomotic stomas can be reduced, the circulation stopping time can be shortened, and meanwhile the three-branch anatomical structure on the arch can be reserved. Therefore, the existing operation requirements are met.

The invention discloses an application of nitro fatty acid in preparation of a product for predicting, preventing and improving adverse cardiovascular events of patients with acute coronary syndrome. The invention provides application of nitro fatty acid in preparation of products for preventing and improving adverse cardiovascular events of ACS patients. According to the application, for the ACS patient, when the concentration of the 12-nitro conjugated linoleic acid in the body is larger than 0.196 ng / ml and the concentration of the 9-nitro conjugated linoleic acid is larger than 0.296 ng / ml, it is judged that the risk that the ACS patient is re-hospitalized and dead due to non-fatal myocardial infarction / unstable angina pectoris / blood supply reconstruction is low. By detecting the content of nitro fatty acid in a biological sample and supplementing nitro fatty acid, the occurrence rate of adverse events can be greatly reduced. Meanwhile, the invention further provides a detection method of nitro fatty acid, and the accuracy of biological sample detection is improved.

The invention discloses an enhanced Swinin-Unet liver tumor segmentation method fusing blood vessel guidance and adaptive deformation attention. Through combination of elastic B-spline registration and affine transformation, nonlinear deformation is compensated, a multi-modal image space alignment error is reduced, and tumor boundary blur and feature dislocation are reduced. Topological features are extracted in combination with a blood vessel reconstruction module, and model attention is effectively guided. The encoder adopts a convolution pool and a deformable attention SADR down-sampling, and a lightweight deformable attention module is integrated through jump connection, so that effective multi-scale feature fusion and space alignment are realized, and the model perceptibility is enhanced. The graph theory model is embedded into liver lobe partition and blood vessel curvature constraint, and it is ensured that the segmentation result is strictly matched with blood vessel blood supply topology. In order to solve the class imbalance problem, an FA loss function is provided and combined with a structure correction algorithm (SGDR), so that incomplete segmentation and false positive artifacts are effectively reduced. Experimental verification on a LiTS data set shows that the method is superior to an existing method in liver and tumor segmentation, and Dice coefficients reach 93.38% and 91.39% respectively.

The invention relates to the technical field of medical signal processing, in particular to a brain oxygen entropy-based dynamic blood flow simulation system which comprises a data acquisition module, a structure modeling module, a state monitoring module, a simulation calculation module and an anomaly prediction module. According to the method, through synchronous utilization of brain oxygen saturation and blood flow velocity signals, accurate capture of brain oxygen supply and blood flow dynamic dynamic correlation is achieved, sensitivity of abnormal fluctuation recognition is enhanced, individualization and accuracy of blood flow simulation are improved by combining a brain blood vessel geometric structure and blood vessel elasticity and compliance parameters, and multi-point dynamic coupling is utilized to achieve the purpose of improving the accuracy of blood flow simulation. According to the method, abnormal blood supply state recognition is enhanced, brain blood supply stability evaluation is optimized, the local blood flow micro-dynamic feature reduction degree is improved through dynamic updating of the inertia coefficient and the shear stress, the oxygen entropy fluctuation, the shear stress and the flow velocity gradient are combined, the nonlinear coupling relation is extracted, the abnormal event prediction accuracy is improved, and the brain blood supply stability is improved. And the early warning capability of abnormal cerebral blood supply is enhanced.

The invention provides a cannula capable of effectively and smoothly conveying blood from the ascending aorta while reducing the diameter of the cannula. And the front end part of the cannula is retained in the ascending aorta and is used for smoothly conveying blood supplied by the in-vitro artificial membrane lung from the ascending aorta. The cannula comprises a forward blood backflow part (2) and a blood delivery tube (4), wherein the forward blood backflow part (2) is arranged at the front end of the blood delivery tube (4). A guide wire tube (5) which longitudinally extends from a base end part to a front end part is arranged at a near-center position of the axial length in the smooth blood feeding sleeve (1). The blood delivery tube (4) is a catheter arranged on the base end side and used for being connected with the in-vitro artificial membrane lung. The forward blood return unit (2) reverses blood from a reverse direction to a forward direction and guides the blood to the base end side, and is provided with a first blood return tube (6) provided on the base end side and a second blood return tube (7) provided on the tip side. The second blood return tube (7) has side holes (7a, 7b), and a part of an approximately hemispherical bag body (8) is adhered to the inner portion of the tip of the second blood return tube (7).

The invention is suitable for the field of medical technology, and provides a cerebral apoplexy monitoring method and system based on a multi-modal brain-computer interface, and the system comprises a multi-modal physiological data acquisition module, a data denoising and feature extraction module, a multi-modal data fusion module, an abnormal mode recognition module, and a risk signal alarm module. The system can be combined with different types of physiological signals to provide a comprehensive and real-time monitoring platform so as to support early recognition and timely intervention of cerebral apoplexy. The system can effectively capture the electrical activity and blood flow change of the brain of a patient by monitoring electroencephalogram and near infrared spectrum data in real time, so that deep physiological state analysis is provided for doctors; by simultaneously acquiring the electroencephalogram signal and the blood flow change data, the system not only can analyze the neural activity of the brain, but also can evaluate the blood supply condition of the brain. By means of the comprehensive monitoring, a doctor can judge the health condition of the patient more accurately on the basis of comprehensively considering the brain function and the blood flow state.

The invention relates to the field of medical instruments, in particular to a self-adaptive inflatable medical protection restraint system and a monitoring control method. The system comprises a restraint strap body, a pneumatic control module, a biological feedback module and a system control module. An air bag array consisting of a plurality of independent air chambers is arranged in the restraint strap body; the pneumatic control module is used for inflating and deflating each air chamber; the biological feedback module is integrated on the belt body, comprises a pressure sensing unit and a blood supply sensing unit, and is used for monitoring and constraining interface pressure and limb blood supply state in real time; and the system control module receives the monitoring data, generates an instruction based on a preset safety parameter, and drives the pneumatic control module to perform self-adaptive pressure adjustment on the specified air chamber. According to the system, through dynamic monitoring and accurate adjustment, the problem that a traditional restraining device is prone to causing compression injury and blood supply disorder is effectively solved, and safety and comfort are remarkably improved.

The invention relates to a tissue engineering trachea, which combines an additive manufacturing technology with a biological material, simulates the form and the function of a natural gas pipe, designs a cartilage-fiber alternating ring structure and a bionic fiber band structure, and designs a unique blood supply channel in a fiber section. The trachea fiber section is composed of hydrogel with a hierarchical porous structure, and a circumferential blood vessel channel and a radial blood vessel pore channel are designed in the hydrogel so as to promote ingrowth and growth of new blood vessels and optimize the blood supply reconstruction process. The tracheal cartilage section is made into a C-shaped cartilage ring with cartilage cells through a biological printing technology, and necessary mechanical support is provided. The fiber segment and the cartilage segment are effectively integrated through chemical bonds of functional groups to ensure stable connection of the two. Partitioned construction of fibers and cartilage is achieved through the biological 3D printing technology, the bionic tissue engineering trachea is formed in a modular construction-integrated assembly mode, it is verified that repairing and reconstruction of multiple types of tissue bionic tracheas can be achieved, and an innovative solution is provided for tracheal injuries.

Systems and methods are disclosed for to determining a blood supply and blood demand. One method includes receiving a patient-specific model of vessel geometry of at least a portion of a coronary artery, wherein the model is based on patient-specific image data of at least a portion of a patient's heart having myocardium; determining a coronary blood supply based on the patient-specific model; determining at least a portion of the myocardium corresponding to the coronary artery; determining a myocardial blood demand based on either a mass or a volume of the portion of the myocardium, or based on perfusion imaging of the portion of the myocardium; and determining a relationship between the coronary blood supply and the myocardial blood demand.

The invention relates to the field of medical apparatus and instruments in rectum surgery, and particularly provides a novel multifunctional intestinal bypass device for rectum surgery, which comprises a hollow sleeve, a film sleeve, a decompression air bag sleeved outside the hollow sleeve, and an inflation channel, wherein after being inflated, the decompression air bag protrudes in a corrugated or threaded mode in the axial direction of the hollow sleeve, the protruding part makes contact with the intestinal wall to provide friction force, and a decompression gap is formed between the sunken part and the intestinal wall; according to the invention, intestinal contents are discharged from the hollow sleeve and the film sleeve, so that excrement or intestinal juice is prevented from being in contact with an anastomotic stoma, the infection risk of the anastomotic stoma is reduced, and the healing rate of the anastomotic stoma is accelerated; the thin film sleeve is soft and deformable, so that discomfort such as anus falling expansion, pain and tenesmus of a patient can be effectively reduced, and the comfort of the patient is improved; the decompression air bag is expanded through the inflation channel, the hollow sleeve is positioned, meanwhile, blood supply of the intestinal wall is protected, and the reliable effect of replacing preventive fistulization is achieved.

The invention belongs to the technical field of dental pulp blood supply reconstruction, and relates to a multi-omics data fusion analysis method for EDTA (Ethylene Diamine Tetraacetic Acid) induced cell differentiation in dental pulp blood supply reconstruction. A space-time matched multi-level data basis is provided for analyzing a dynamic rule; then through standardization processing and difference analysis, screening out differential molecules which realize corresponding modes and are strongly related to phenotypes, focusing on core regulation and control candidate objects, and avoiding limitation of single omics; the method comprises the following steps: constructing a dynamic multi-layer regulation and control network comprising a transcription layer, a protein layer, a metabolism layer and interlayer connections thereof, finally identifying key nodes and modules through network topology analysis, tracking a time evolution rule in combination with dynamic trajectory analysis, and finally screening a core regulation and control module and predicting a cross-level key path. System analysis from multi-omics data to a hierarchical regulation and control mechanism and a dynamic rule is realized, and the limitation of single-dimension research is effectively broken through.

The application discloses a percutaneous lung puncture path planning method and device based on lung segment level blood vessel structure constraint, and the method comprises the following steps: performing isotropic resampling, lung lobe segmentation and bronchial tree extraction on CT image data to generate a three-dimensional lung dissection model; inputting the three-dimensional lung dissection model into a lung segment semantic segmentation module to output a lung segment boundary; reconstructing the topological connection relationship between lung segment level blood supply arteries and drainage veins from the lung segment boundary to obtain a structured lung segment level blood vessel atlas; constructing a dynamic puncture risk field voxel map according to the structured lung segment level blood vessel atlas; sampling a plurality of candidate needle entry points in a surface feasible needle entry region to generate an initial path set in the three-dimensional lung dissection model; and weighting the path length, cumulative risk value, puncture angle penalty and high-density lung tissue volume according to a multi-objective optimization function to output a final puncture path. The application significantly improves the safety boundary and clinical applicability of percutaneous lung puncture.

The invention relates to a medical first-aid instrument. The efficient bleeding stopping suite for the broken limb comprises an anastomosis cylinder and connecting assemblies arranged at the two ends of the anastomosis cylinder and used for being combined with the broken end. The center of the anastomosis cylinder is provided with a funnel-shaped center cone which is gradually shrunk towards the telecentric end, and the telecentric end of the center cone and the anastomosis cylinder are coaxially provided with a center cylinder; the central cylinder is communicated with the central cone, and a control valve is arranged on the central cylinder; an anastomosis needle used for being inserted into a broken limb artery is further arranged at the distal end of the center cylinder. Targeted rapid hemostasis can be effectively achieved on the whole, stable temporary blood supply is efficiently constructed, and the replanting survival rate of the fractured limbs is remarkably improved.

The invention discloses an operation method for splitting an oral implant bone, which comprises the following steps of: preparing an ultrathin bone sheet of which the buccal side is less than 1mm, reserving physiological connection between periosteum and the bone sheet, and constructing a periosteum bone flap. The periosteum flap is of a natural barrier membrane structure, and integrates the function of a bone sheet rigid support and the semi-permeable membrane characteristic of the periosteum. The buccal ultrathin bone sheet is connected with the basal bone, is a rigid support structure, supports an osteogenesis space, and can provide bone marrow stroma cells to participate in bone defect repair. Physiological attachment of periosteum is not only a blood supply source of an inner side bone sheet, but also exerts the characteristics of a semi-permeable membrane, replaces an artificial barrier membrane to stop fiber tissue from growing in, and follows the PASS principle of the GBR technology, so that the operation risk is reduced, the use of the artificial barrier membrane is reduced, the adaptation disease of bone splitting is widened, the absorption of buccal side bones is reduced, and the bone splitting effect is improved. And the clinical effect of bone defect repair is improved.

The application relates to the field of patient information labels, and provides a dressing kit with patient information, which comprises a transparent dressing layer, a printing layer and a release layer, the dressing layer has a sticking surface and is used for sticking to the skin of a patient, the sticking surface comprises an identification area and a sticking area, and the sticking area is arranged around the identification area; the printing layer is attached in the identification area, and the surface of the printing layer facing the sticking surface forms an identification surface, the identification surface is used for displaying patient information; and the release layer is annular in shape and covers the sticking area. According to the utility model, the printing layer is covered by the dressing layer and is attached to the skin of a patient, the problem that the printing layer can only be fixed to a limb is solved, the situation that a critical patient is easily pressed to cause skin damage or poor blood supply is avoided, and the printing layer is not exposed to the outside and is not easily affected by friction and stains.

The utility model designs a high-molecular blood circulation blocking prevention elastic bandage, which comprises a high-molecular elastic bandage and is characterized in that a plurality of elastic sheets are arranged on the front surface of the high-molecular elastic bandage. And a plurality of elastic sheets are arranged on the back surface of the macromolecular elastic bandage. And the elastic sheet is square or circular. The elastic sheet is made of a foam material, and the foam material is polyurethane foam. The high-molecular elastic bandage has the advantages that after a bound wound swells, due to the fact that the high-molecular elastic bandage is covered with the foam materials, a buffer area exists between the bandage and the skin of the wound, and the interval areas between the foam materials can relieve compression on the skin and reduce the influence on blood supply.

The invention belongs to the technical field of medical instruments, and relates to a temperature monitoring system and method based on a temperature measurement type kirschner wire. The multi-point temperature measuring optical cable is arranged in the length direction of the kirschner wire, so that the multi-point temperature measuring optical cable can obtain temperature data of the healthy side and the affected side of the limb while the kirschner wire plays the original functions of fixing the skeleton of the broken limb and the like, and inconvenience and possible influence on the limb caused by additional arrangement of a temperature measuring device are avoided. The detection receiving unit serves as an intermediate link and is connected with the multi-point temperature measurement optical cable and the data acquisition and analysis system. And the data acquisition and analysis system is used for receiving the temperature data transmitted by the detection receiving unit and carrying out temperature monitoring and early warning according to the temperature data. Medical staff are reminded to take corresponding measures in time, real-time and accurate monitoring of the blood supply state after the amputated limb replantation operation can be achieved, and the medical staff can recognize and process vascular crisis in time.

The invention belongs to the technical field of diabetic foot clinical path management, and discloses a diabetic foot patient path management method and system based on lower limb vasculopathy grading. Mapping the ulcer position to the corresponding perfusion area and the artery segment to generate ulcer space characteristics; calculating a blood supply risk score of the perfusion area and generating a space risk map by combining the blood vessel image detection data and the microcirculation detection data; then collecting time sequence data including an ulcer index, an infection index, a blood supply index and a space risk map, and predicting the progress speed and the risk level of the future ulcer course; and finally, according to the blood supply risk score and the disease course prediction result, generating an individualized path management scheme through a joint triggering rule. According to the invention, precise and dynamic management of the diabetic foot ulcer is realized, the healing rate is improved, and the recurrence rate and the medical cost are reduced.

The application provides an aortic dissection rupture sealing device, which comprises a body having a hollow flow channel extending along the axial direction of the body, the hollow flow channel penetrating the rupture for conducting the true lumen of the aorta and the branch blood vessel, and the body being used for connecting a stent located in the branch blood vessel; and an anchoring part arranged on the body and surrounding the hollow flow channel, and anchored to the surrounding intima at the rupture, so as to prevent the fluid from conducting between the true lumen and the false lumen formed at the rupture. By using the above scheme, the rupture sealing effect can be improved, the continuous expansion of the false lumen caused by the incomplete rupture sealing and the residual liquid leakage can be avoided, and the blood supply stability of the branch blood vessel can be ensured, so that the blood supply demand of the internal organs, the spinal cord and the like supplied by the branch blood vessel can be met.

The invention relates to a sudden cardiac arrest treatment device based on an ultrasonic Doppler feedback technology, and belongs to the field of medical instruments. The cardiac arrest treatment device based on the ultrasonic Doppler feedback technology comprises a first monitoring module used for monitoring the blood flow condition of the neck blood vessel of a target organism; and / or the second monitoring module is used for monitoring the blood oxygen condition of the neck blood vessel of the target organism; the acquisition module is used for acquiring blood supply and / or oxygen supply of the target organism according to the blood flow condition and the blood oxygen condition; the system comprises a blood supply module, a cardio-pulmonary resuscitation pressing module, and / or a ventilation module, and / or a defibrillation module, and the cardio-pulmonary resuscitation pressing module is used for adjusting the pressing depth or pressing frequency according to blood supply and / or oxygen supply; the ventilation module is used for adjusting the ventilation frequency in the cardio-pulmonary resuscitation pressing process according to blood supply and / or oxygen supply; the defibrillation module is used for executing defibrillation operation under the condition that the defibrillable heart rhythm exists. According to the technical scheme, the treatment rate can be increased, and the cardiac arrest treatment quality can be improved.

The application relates to the field of medical image assisted ablation technology, and provides a thyroid nodule ablation control system based on ultrasound contrast parameters. The system comprises an ultrasound data acquisition module, a contrast parameter analysis module, a blood supply identification module, an ablation strategy generation module, an ablation execution module, a feedback evaluation module, a closed-loop control module and an energy optimization module. By acquiring an ultrasound contrast image of target tissue, perfusion time, perfusion intensity and perfusion sequence parameters are extracted, blood supply arteries or blood supply areas are identified, and a phased ablation strategy is generated, the blood supply area is preferentially ablated, and then main ablation is carried out on the target tissue; at the same time, residual active areas are detected based on contrast feedback, and supplementary ablation is carried out through a closed-loop control mechanism; and ablation parameters are dynamically optimized in combination with a unit volume energy model. The system can improve ablation integrity, reduce the heat sink effect and the risk of intraoperative bleeding, reduce the recurrence rate, and improve energy utilization efficiency.

The application provides an aortic dissection rupture sealing device, which comprises an anchoring part, a hollow flow channel, and an intima around the rupture, so as to prevent the fluid communication between the true lumen of the aorta and the false lumen formed at the rupture; a stent, which is adjustably coupled to the anchoring part, has a connecting end and a free end, and at least the free end of the stent is located in a branch blood vessel; and the stent has a hollow structure in communication with the hollow flow channel and is supported in the branch blood vessel to communicate the true lumen and the branch blood vessel. The above scheme can avoid the continuous expansion of the false lumen caused by the incomplete sealing of the rupture and residual shunt, and at the same time, the blood supply of the blood vessel channel is retained to ensure the stability of the blood supply of the branch blood vessel, which is beneficial to meet the blood supply demand of the internal organs, spinal cord and the like supplied by the branch blood vessel.

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.