19 results about "Mesenteries" patented technology

Methods and devices for reducing visceral fat within the mesenteric structure of the body by cooling visceral fat within the mesentery while leaving arteries, veins, nerves and lymph nodes within the mesentery, and the mesentery membrane, undamaged, and thereafter allowing natural processes of the body to eliminate the cooled visceral fat from the body. The system comprises a pair of flat-faced cooling probes configured for insertion into the abdomen and placement on opposite sides of a section of mesentery for application of cooling power to the mesentery, at temperatures in a range which kills visceral fat cells but does not harm other tissue.

The utility model discloses a multifunctional bedside nasojejunum nutrition tube placement training device which comprises a head and neck bionic block, a nasopharyngeal cavity channel is arranged in the head and neck bionic block; the pleuroperitoneal cavity frame comprises a hard simulation frame and bionic skin covering the hard simulation frame. Wherein the head and neck bionic block and the pleuroperitoneal cavity frame are integrally formed or detachably connected. A bionic esophagus, a bionic stomach, a bionic duodenum and a part of bionic jejunum which are sequentially connected are arranged in the pleuroperitoneal cavity frame, and a bionic cardia and a bionic pylorus are arranged at the head end and the tail end of the bionic stomach respectively. A bionic inferior vena cava, a bionic abdominal aorta, a bionic mesenteric superior vein and a bionic mesenteric superior artery are further arranged in the pleuroperitoneal cavity frame; the bionic inferior vena cava and the bionic abdominal aorta are arranged on the rear sides of the bionic stomach and the bionic duodenum, the bottom ends are closed, and the head ends penetrate out of the bionic skin; the bottom ends of the bionic superior mesenteric vein and the bionic superior mesenteric artery are closed, and the head ends of the bionic superior mesenteric vein and the bionic superior mesenteric artery partially wrap the bionic duodenum and then penetrate out of the bionic skin.

The invention discloses an isolated superior mesenteric artery dissection prediction method and device, equipment and a medium, and the method comprises the steps: obtaining a training data set which comprises a plurality of training superior mesenteric artery images collected through CT plain scanning and corresponding superior mesenteric artery dissection types, extracting radiomics characteristics of each training superior mesenteric artery image, inputting the radiomics characteristics into a preset radiomics model, and outputting a predicted superior mesenteric artery dissection prediction probability through the preset radiomics model; constructing a target function based on the superior mesenteric artery dissection category and the predicted superior mesenteric artery dissection prediction probability; training the preset radiomics model based on the target function to obtain a trained radiomics model; and predicting a superior mesenteric artery dissection prediction result of the superior mesenteric artery image to be predicted by using the radiomics model. According to the method, the radiomics characteristics of the superior mesenteric artery image are extracted and trained, and the radiomics model is trained by adopting the loss function including the log-likelihood function and the priori penalty term based on the extracted radiomics characteristics, so that the radiomics model can perform superior mesenteric artery dissection prediction, and the prediction accuracy of the superior mesenteric artery dissection is improved. And the prediction accuracy of the superior mesenteric artery dissection is improved. Therefore, the early recognition efficiency of the superior mesenteric artery dissection can be effectively improved, a reliable clinical basis is provided for doctors, and the method is particularly important in emergency scenes such as emergency treatment.

This invention relates to a cannulation device and manufacturing method for draining intestinal lymphatic fluid in small animals. The device includes a catheter and a guidewire. The catheter includes an insertion section and a drainage section, the outer and inner diameters of which are smaller than those of the drainage section. The guidewire can be inserted along the catheter, and its outer diameter is smaller than the inner diameter of the insertion section. The insertion tip of the guidewire is blunt and rounded, and the tail end of the guidewire is provided with a handle. By using the cannulation device of this invention, the problems of difficult catheter insertion and significant damage to the mesenteric lymphatic vessels during pretreatment in existing intestinal lymphatic fluid drainage cannulation techniques are solved, reducing the difficulty of surgical operation, shortening the operation time, reducing tissue damage, and improving the success rate of surgery.

This invention discloses an intelligent segmentation method, system, device, and medium for laparoscopic colorectal surgery images. The method includes: acquiring images during laparoscopic colorectal surgery; performing frame-by-frame processing on the images; and annotating keyframes in the frame-by-frame images and presetting Regions of Interest (ROIs) to achieve segmentation of the laparoscopic colorectal surgery images. This invention, through real-time laparoscopic visualization, provides guidance for locating the inferior mesenteric artery, automatic segmentation of the inferior mesenteric artery, automatic segmentation of the Toldts space, and automatic segmentation of instrument forceps during the inferior mesenteric artery dissection stage, effectively achieving intelligent segmentation of laparoscopic colorectal surgery images. This invention achieves automated keyframe extraction with high processing efficiency and can quickly construct large-scale, standardized keyframe datasets.

The invention discloses a biomarker for predicting in-stent restenosis after a superior mesenteric artery stent implantation operation. The biomarker is one of isopropyl sulfide and 1-methyl-L-histidine or a combination of isopropyl sulfide and 1-methyl-L-histidine. According to the method, a new strategy is provided for preoperative prediction and early intervention of ISR after SISMAD operation.

The invention relates to an insufflation system, in particular in transanal total mesorectal excision (taTME), with two insufflators of identical construction, the sensor systems and operating modes of which are coordinated with one another such that the two insufflators optimally support the operation. According to the invention, the two insufflators, which initially insufflate (distend) different body cavities in the abdominal cavity, are coordinated in terms of their setpoints and operating states.

The invention discloses a thrombus collecting device for thrombus extraction in a superior mesenteric artery cavity and a manufacturing method, solves the problems that in the prior art, thrombus extraction instruments or devices are low in effect, thrombus blocks are prone to falling off, blood vessels are prone to being damaged and the like in the thrombus extraction process, and has the beneficial effects that the thrombus extraction effect is exact, the thrombus blocks are prevented from falling off, and blood vessel damage is reduced. According to the specific scheme, the thrombus collecting device for thrombus extraction in the superior mesenteric artery cavity comprises a supporting framework, the supporting framework is arranged on the outer side of a flexible filter screen to support the flexible filter screen, the flexible filter screen is deformable, one end of the flexible filter screen is open, and a cavity used for containing thrombus is formed in the flexible filter screen when the flexible filter screen is unfolded. The supporting framework has elasticity and shape memory ability, one end of the supporting framework is connected with the supporting guide pipe, the other end of the supporting framework is arranged to exceed the flexible filter screen, a plurality of blade deformation assemblies are arranged at the end, exceeding the flexible filter screen, of the supporting framework, and the blade deformation assemblies are connected with the traction guide pipe through traction wires.

Devices, systems, and methods for patient-specific, custom-designed fenestrated implants. Various examples involve abdominal aortic stent-grafts with custom-designed fenestration features for perfusion of the renal arteries, mesenteric arteries, and / or celiac trunk arteries.

The invention relates to the field of Crohn's disease analysis, and discloses a multi-center research method for evaluating Crohn's disease activity, which comprises the following steps: firstly, carrying out radiomics model multi-region focus segmentation, feature extraction, feature selection, model establishment, multi-modal clinical construction, hybrid model construction, model evaluation and comparison and a statistical method; according to the method, a clinical prediction model is constructed by adopting a machine learning algorithm based on demographic characteristics, clinical manifestation, laboratory examination and image examination data of a CD patient; image omics features are extracted from intestinal wall and mesenteric fat areas of a CT small intestine angiography CTE image, clinical and image omics features are fused, and a plurality of machine learning models are constructed to evaluate the disease activity of a CD patient; the problems that in the prior art, a treatment scheme cannot be systematically formulated for a patient suffering from the Crohn disease, the disease progress cannot be monitored, the application vacancy of medical imaging and artificial intelligence in the field of inflammatory intestinal diseases exists, and the application effect is not ideal are solved.

The application belongs to the technical field of biology, and discloses a system for continuous drainage of mesenteric lymph fluid and application thereof, which comprises a mesenteric lymph vessel catheter for being inserted into a mesenteric lymph vessel to drain mesenteric lymph fluid, a jugular vein catheter for being inserted into a jugular vein, a collector for collecting lymph fluid, and a conscious activity device comprising a quick connection button VAB and a mesenteric lymph fluid collecting tube, wherein the outlet end of the mesenteric lymph fluid collecting tube is in the same height as the inlet end of the mesenteric lymph vessel catheter. The method can realize real-time and long-term collection of lymph fluid under the conditions of free activity, unrestricted diet and water and normal physiological state of rats, can avoid the influence of surgical stress, general anesthesia or animal restriction on experimental results, can reflect the real state of lymph fluid, and can be applied to the fields of research on lymph vessel absorption capacity and functional state and explanation of disease mechanism.

This model helps in understanding the gross anatomy (shape, relative size, and three-dimensional positional relationship) of the intestines and mesentery. It is useful for medical students and young healthcare professionals to acquire basic knowledge for understanding the pathophysiology of diseases and injuries of abdominal organs, as well as for examination and treatment. [Solution] The model 50 has an intestinal tract 2 covered and embedded by the peritoneum 1, an intestinal tract 2 provided in the posterior abdominal wall 4 in a form where much of the outer circumference is covered by the peritoneum 1, and an intestinal tract 2 provided in the posterior abdominal wall 4 via the mesentery 5, wherein each of the intestinal tracts 2 is made of a flexible and smooth pliable material and attached to a substrate 23 which is the posterior abdominal wall 4, and each of the intestinal tracts 2 and the mesentery 5 are configured to be the same as or approximately the same length and thickness as those in living organisms, thereby solving the above problem.

The invention provides a traditional Chinese medicine composition for treating mesenteric lymph node abdominal pain, an external patch formula as well as a preparation method and application of the external patch formula, and belongs to the technical field of traditional Chinese medicine compositions. The composition is prepared from selfheal, radix scrophulariae, cortex phellodendri, rhizoma anemarrhenae, ligusticum wallichii, radix paeoniae alba, agastache rugosus, cinnamon, rhizoma corydalis, semen raphani, rhizoma atractylodis and radix angelicae pubescentis. The prescription takes selfheal and radix scrophulariae as monarch drugs for clearing heat and removing stasis and directly treating focus; cortex phellodendri, rhizoma anemarrhenae, ligusticum wallichii and rhizoma corydalis are used as ministerial drugs to clear heat, eliminate dampness, activate blood and relieve pain; rhizoma atractylodis, semen raphani and wrinkled gianthyssop herb are used for tonifying spleen, eliminating dampness and removing food retention; white paeony root is used for relieving spasm and nourishing liver; the cortex cinnamomi is used as an assistant and guide to warm and dredge and regulate the whole formula. All the medicines are combined to achieve the effects of clearing heat, removing stasis, invigorating spleen, eliminating dampness, promoting qi to activate blood and activating meridians to stop pain. The traditional Chinese medicine composition is prepared into an external patch, is applied to the Shenque acupoint, has a remarkable curative effect on abdominal pain caused by mesenteric lymphadenitis of children, and has the advantages of high compliance and small side effect.

The invention relates to a conveying assembly and a conveying system, at least two mounting sections are arranged on an inner catheter, all the mounting sections are distributed in the axial direction of the inner catheter, each mounting section can be used for assembling an implant, an outer sheath movably sleeves the inner catheter, and a release unit comprises at least two binding elements and at least one release wire. Each installation section is provided with a binding element used for binding an implant assembled on the installation section, and at least one release silk thread movably penetrates through a sheath tube inner cavity of the outer sheath tube and is used for controlling the binding element to release the implant. In order to solve the problem that a stent and a conveying system used in conventional interventional therapy cannot simultaneously solve the backflow problem of splenic veins and superior mesenteric veins at a time, the conveying assembly provided by the invention can be assembled with two stents at the same time, and implants are sequentially released to target positions from the far end to the near end in the axial direction; therefore, sequential release of a plurality of implants in one-time conveying operation is realized.

The invention discloses a treatment evaluation method for a Crohn disease patient, which belongs to the crossing field of medical imaging technology and artificial intelligence, and comprises the following steps: step A, patient image data acquisition and preprocessing: acquiring CTE image data of the Crohn disease patient at a specified time point after treatment, and transmitting the CTE image data to a medical image analysis platform for preprocessing, the preprocessing comprises image denoising and alignment; step B, automatic segmentation and feature extraction of a lesion area: a lesion intestinal wall area VOI is sketched through medical image analysis software, an adjacent mesenteric fat area VOI is automatically constructed, image omics features in the VOI are extracted, a feature matrix is formed, and the image omics features comprise texture features, shape features, intensity features and iodine quantitative features; according to the method, mucous membrane healing evaluation is achieved through CTE examination, invasive operation is not needed, pains and risks of enteroscopy are avoided, a patient can accept the method more easily, and the method is especially suitable for multiple dynamic monitoring after treatment.

The invention discloses a disease risk prediction system based on multi-region abdominal fat imageomics characteristics. The disease risk prediction system comprises a fat segmentation module used for performing fat segmentation on five types of fat regions including subcutaneous fat, retroperitoneal fat, abdominal anterior fat, mesenteric fat and pelvic medial fat on a preprocessed image by using a neural network model; the feature extraction module is used for extracting image features from the segmented fat region; the ratio calculation module is used for calculating a key ratio index between fat regions; and the risk prediction module is used for constructing a risk prediction model, establishing independent dichotomous sub-models for diseases, and performing disease risk prediction by using the dichotomous sub-models. According to the method, full-process analysis from image preprocessing, region segmentation, feature extraction to risk scoring can be automatically completed under the condition that manual intervention is not needed, and the structural utilization efficiency of the abdomen image in clinic is greatly improved.

A surgical system for reducing visceral fat in the abdominal cavity comprises a novel console and a thermal treatment device. The console houses a computer and electronics for circulating a thermal fluid along a closed loop flowpath through the treatment device. The console is programmed and operable to, amongst other things, control temperature, adjust flow rate, compute cooling duration and power delivered, and detect for leaks along the flowpath. A GUI in the form of a tablet can be arranged with the console to display procedure information and to accept input from the physician.

A surgical device for reducing visceral fat in the abdominal cavity comprises an elongate shaft and an inflatable member. The inflatable member comprises a small-profile deflated configuration for being advanced into the abdominal cavity and a large-profile inflated configuration comprising a planar distal treatment surface for treating the visceral fat. The thermal fluid, preferably a gas, is circulated through the inflatable member at a temperature range sufficient to cause cryolipolysis to the fat cells but not damage non-target tissues. The inflatable member can have several chambers, reinforcing members, and ports to provide controlled flow patterns that maintain the shape of the inflatable member when inflated.

The invention belongs to the technical field of medical image processing and computer vision, discloses an intraoperative blood vessel real-time automatic identification method and system based on deep neural network learning, and is particularly suitable for automatic identification of submesenteric arteries and submesenteric veins in laparoscopic rectal resection. The intraoperative blood vessel recognition method comprises the following steps: acquiring a laparoscopic surgery video, extracting a frame sequence containing a target blood vessel, and marking an image to construct a training data set; using a 3D U-Net segmentation neural network training model to pre-process a video frame, and inputting the pre-processed video frame to a three-dimensional convolutional neural network model for semantic segmentation; and running the model in a test video in real time, outputting a pixel-level prediction result of the target blood vessel, and displaying the result in an original video in a visual overlapping manner to assist surgical navigation. According to the method, accurate recognition and real-time visual navigation of the blood vessel structure are achieved, a surgeon can be effectively assisted in reducing the risk of blood vessel misjudgment in the operation, and the safety and standardization level of the minimally invasive operation are improved.