8 results about "Superficial vein" patented technology

A system includes an expandable material configured to occupy a space within a blood vessel. The expandable material is shaped to occupy the blood vessel. The expandable material is further configured to block a flow of blood within the blood vessel. The expandable material is further configured to be permanently fixed in the space. The system further includes an introducer configured to confine the expandable material in a compressed state until the expandable material is deployed to the space within the blood vessel. The introducer is further configured to deploy the expandable material to the space from a distal end of the introducer.

1. The name of the design product: pressure bandage (reverse buckle bandage). 2. The use of the design product: used for temporarily blocking the blood return of the superficial veins of the limbs in medical operations, and the surface-mounted timer is used for timing. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This application discloses a method and system for microvascular anastomosis modeling and effect prediction in assisted spermatic cord anastomosis, relating to the field of data processing technology. The method includes: extracting the pampiniform plexus topology and varicose vein segments from a three-dimensional vascular tree model of the spermatic veins constructed based on spermatic cord vessel images; determining candidate diversion inlet locations based on the spatial adjacency relationship between the obstructed reflux nodes identified by the varicose vein segments and the pampiniform plexus topology; spatially registering the contour of the inferior epigastric vein segmented from the superficial vein images of the inguinal region with the candidate diversion inlet locations to generate a diversion anastomosis path planning map; constructing the geometric configuration of the end-to-side anastomosis and performing hemodynamic simulation to generate a wall shear stress distribution field, assess the thrombosis tendency of the end-to-side anastomosis, and generate a postoperative patency rate prediction value. This application can predict the risk of thrombosis preoperatively through hemodynamic simulation, providing a reliable basis for surgical planning and effectively improving the success rate of the surgery.

The present invention relates to an orthosis for compressing superficial veins (SV) in the lumbar spine region. More specifically, the purpose of the present invention is to alleviate lower back pain or immediately improve the symptoms thereof by gently and evenly pressing SVs in the skin of the lumbar spine region, in order to treat or alleviate lower back pain due to an insufficiency of SVs distributed over the lumbar spine connection. A rectangular orthosis main body (100), which is made of memory foam having a hardness of 1 to 5 or an inflatable member, has a shape corresponding to the musculoskeletal shape of the lumbar spine region, and gently and evenly presses the skin over the SVs, includes a lumbar vertebrae region (10), a lumbar spine connection (20), and a sacral region (30), which are integrally formed.

A sensing system for use with a body care or body treatment device, such as a personal care device. The sensing system may be integrated in a device. The sensing system, during use, obtains optical sensing data proximate a tissue region of the body care device, processes the sensing data to extract a representation of a superficial vein or vascular pattern at the tissue region, and using the representation of the vein pattern to infer information about a user category (e.g., a demographic category) or a body location to which the sensed tissue region belongs. Optionally, processing-related information may be generated using the information. This may be an operating parameter setting, or may be monitoring information such as overlay information.

This invention provides a control method, apparatus, and computer-readable storage medium for a blood purification device. The method includes: responding to a connection between an extracorporeal circulation tubing connected to the blood purification device and a user's peripheral superficial vein, acquiring a first diameter of the peripheral superficial vein when the flow velocity of the blood driving unit in the blood purification device is zero; increasing the flow velocity of the blood driving unit every first preset time interval and acquiring a first real-time flow velocity of the extracorporeal circulation tubing until the diameter deviation between a second diameter of the peripheral superficial vein at the first real-time flow velocity and the first diameter does not meet a first safety condition; determining a target flow velocity based on multiple acquired first real-time flow velocities, wherein the diameter deviation between the diameter of the peripheral superficial vein at the target flow velocity and the first diameter meets the first safety condition; and controlling the blood driving unit to operate at the target flow velocity. The technical solution of this invention improves the safety of blood purification for users.

The invention relates to the field of medical auxiliary instruments, in particular to a blood sampling pad with directional lighting, which comprises a first mounting seat, an arc-shaped groove is formed in the first mounting seat, a placement pad is arranged in the arc-shaped groove, a sliding groove is formed in the left side of the first mounting seat, a sliding part is slidably connected in the sliding groove, and the sliding part can slide back and forth. The sliding piece is connected with a connecting piece through a bolt, an adjusting assembly is slidably installed on the connecting piece and can slide up and down, and the left side of the adjusting assembly is connected with a second installation base. By accurately controlling the light projection angle and range, the display definition of blood vessels on the skin surface is greatly enhanced, the ergonomic pressing assembly exerts the optimal pressure to assist superficial veins to naturally protrude while stabilizing limbs, the time for repeated probing and searching of the blood vessels and the instability of bare-handed pressing are effectively shortened, and the medical effect is improved. The first-time puncture success rate is obviously improved; and the whole blood sampling operation time is shortened.

The present invention discloses a method for segmenting superficial cerebral veins in an image, which belongs to the technical field of medical image processing and comprises the following steps: S1: selecting several healthy subjects; S2: performing conventional sequence scanning and susceptibility-weighted imaging; S3: SWI raw data processing; S4: constructing a data set; S5: data set preprocessing; S6: model training; S7: model application; S8: model extension application; the present invention combines the development advantages of susceptibility-weighted imaging, constructs a deep learning model based on MinIP images, and realizes preliminary quantitative analysis of the segmentation of morphological features of superficial cerebral veins, which can provide an objective reference method for the evaluation of superficial cerebral veins in clinical neurological diseases in the future. Based on this model, the hypothesis proposed by tissue anatomy that pathological changes of superficial cerebral veins can cause microinfarctions and thus lead to high signals in the white matter of the brain is discovered from an imaging perspective, and the gender difference in the distribution of the number of blood vessels in the superficial cerebral veins is discovered.