312 results about "Body tissue" patented technology

Ultrasound probes, ultrasound systems, and ultrasound methods with pressure measurement capabilities for detecting and determining if bodily tissue is over-compressed during ultrasound imaging procedure. An ultrasound probe can include a probe body, an articulating probe head attached to the probe body, and a pressure-sensing device housed in an articulating area between the articulating probe head and the probe body. A method can include placing the articulating probe head of the ultrasound probe on a skin surface of a patient and moving the articulating probe head of the ultrasound probe over the patient while ultrasound signals are emitted into the patient from the articulating probe head. The method can also include monitoring for measured pressure values induced on the patient by the articulating probe head to determine whether a threshold pressure value has been exceeded.

Provided is a program, etc. capable of acquiring information related to an amount of body tissue from an X-ray image with high accuracy using a small number of cases. A computer acquires training data including an X-ray image of a target site and information related to an amount of body tissue obtained from a CT (Computed Tomography) image of the target site. The computer generates a learning model configured to output information related to an amount of body tissue of a target site in an X-ray image when the X-ray image is input using acquired training data.

A method of diagnosing a condition of bodily tissue using a computer, the method comprising comparing, using a computer, a 3D tissue model derived from an ultrasound scan of the bodily tissue with at least one 3D tissue model having common tissue with the bodily tissue, and diagnosing a condition of the bodily tissue responsive to comparing the 3D tissue models.

Disclosed is a computer-implemented method for real-time classification of cells in a body tissue that includes capturing one or more images of a cytology slide sample of the body tissue, pre-processing the captured one or more images, detecting and extracting a plurality of regions of interest in the pre-processed images using a cell detection process, wherein each region of interest includes one or more cells or cell clusters of interest, segmenting each individual cell or cluster in the regions of interest and extracting pixel content of each segmented cell or cluster, extracting semantic features from each segmented cell image using an embedding extraction model, classifying each individual cell or cell cluster based on corresponding extracted sematic features, and predicting a class of the cytology slide sample, based on one or more positions and relationships among one or more classified cells, using a slide level decision model.

A biometric wearable device (e.g. finger ring or smart watch) has optical sensors to measure body oxygenation level, hydration level, glucose level, heart rate, heart rate variability, and / or blood pressure. Light from light emitters is transmitted through body tissue and changes in the light are analyzed. The angles and / or vectors along which the light is transmitted through body tissue can be automatically changed by the device in order to scan different tissue regions and / or different tissue depths.

The invention provides a body composition analysis and comparison system based on a medical image. The body composition analysis and comparison system comprises a composition statistics module and an analysis and comparison module, the component statistics module performs preliminary statistics on data related to body components based on the segmented medical image; the component statistics module comprises a pixel statistics module for determining the proportional relation of different body components by counting the number of different types of pixel points in the segmented medical image, an area measurement module for converting the number of pixels into a real physical area on the basis of pixel statistics, a density evaluation module for evaluating the density of the physical area, and an area calculation module for calculating the density of the physical area. On the basis of pixel statistics and area measurement, calculating an average gray value of the segmented regions, and estimating physical characteristics of body tissues corresponding to the medical image; and the analysis and comparison module carries out variable quantity calculation, visualization processing of a change area and generation of an analysis and comparison report based on different data obtained by the component statistics module. According to the invention, the comprehensiveness, accuracy and consistency of medical image recognition and analysis can be improved.

In view of the problems and the like of the prior art, the purpose of the present invention is to provide a method for imaging body tissue rapidly and robustly using waveform inversion from ultrasound examination data.　The method for imaging body tissue rapidly and robustly using waveform inversion from ultrasound examination data according to the present invention comprises: (a) a step for acquiring ultrasound examination data; (b) a step for generating one wave field by means of a plurality of computers (CPUs); (c) a step for integrating squared errors (which constitute fc in expression (5)) from all CPUs, each squared error being the error between a waveform recorded at a reception point from the wave field and an observed waveform obtained in step (a); (d) a step for re-dividing a correction gradient and a pseudo Hessian matrix into regions with an equal number of CPUs in the x-direction; (e) a step for re-dividing from the uniform regions in the x-direction into regions with an equal number of CPUs in the y-direction; (f) a step for calculating a step length required for model updating in full-waveform inversion using a quasi-Newton method while maintaining the division of regions in the x-direction; and (g) a step for repeating the steps (b) to (f) to obtain imaging of a viscosity Q value in addition to a sound wave propagation velocity. Expression 5: Here, fc (scalar quantity) is a cost function representing the sum of squared residuals between the observed data (d_obs) and the synthetic data (d_syn) calculated from the initial model at all times of all reception points, and Ns, Nr, Nt are respectively the number of transmission points, the number of reception points, and the number of time samples.

A method of monitoring a subject with an opto-physiological sensor system is described herein. The method comprises obtaining a model of the optical properties of at least one body tissue type to be monitored, wherein the model of the optical properties comprises a definition of static (DC) and dynamic (AC) components of transmitted optical power and a definition of a source-detector separation related to a normalised path length for an illumination source of the opto-physiological sensor: obtaining an indication of at least one physiological property of the subject from a wearable device worn by the subject: obtaining an indication of at least one physical variable from the wearable device worn by the subject; determining, using the opto-physiological model, how the at least one physical variable affects the at least one physiological property; and determining a corrected value for the physiological property based on the determination of how the at least one physical variable affects the at least one physiological property.

The present invention relates to novel body tissue radiofrequency applicators (50), referred to as BTRFAs, as well as to a non-invasive medical head device useful for stabilizing and / or reversing the symptoms of neurodegenerative diseases and / or proteinopathies. The novel BTRFAs and medical head device are particularly useful for stabilizing and / or reversing the symptoms of Alzheimer's disease and / or Parkinson disease in a subject in need thereof.

Bipolar electrosurgical forceps are provided with dual irrigating tubes that deliver irrigating liquid to the opposed surfaces of the tips of the forceps to prevent the sticking of body tissue to the tips. To reduce the manufacturing costs of the forceps and enable the forceps to be single use, disposable forceps, each tube of the dual irrigating tools is a plastic tube adhered along one of the opposing surfaces of the pair of forceps arms. Each tube also has a flat nozzle at the distal end of the tube that disburses irrigating liquid across the opposed surfaces of the forceps arm distal and tips.

The utility model discloses a pair of ring taking forceps with an anti-slip structure, which comprises a left forceps rod and a right forceps rod, and the left forceps rod and the right forceps rod are rotationally connected with each other through a transmission shaft; metal rings are fixed at the tail ends of the left-side forceps rod and the right-side forceps rod; forceps heads are fixed at the front ends of the left-side forceps rod and the right-side forceps rod; an anti-slip mechanism is arranged on the inner side of each forceps head, after the forceps heads on the left side and the right side extend into the body of a patient to clamp the contraceptive ring, the contraceptive ring can be clamped in a reinforced mode under the damping effect of the anti-slip mechanisms, and the contraceptive ring is prevented from falling off in the process that the ring taking forceps retreat from the body of the patient. The contraceptive ring clamping anti-slip mechanism is arranged in the contraceptive ring taking forceps with the anti-slip structure, the stability in the contraceptive ring clamping process can be improved, the front end of the contraceptive ring taking forceps is of an arc-shaped structure, the body tissue of a patient can be prevented from being damaged in the contraceptive ring clamping process, and the use safety of the contraceptive ring taking forceps is improved.

A guiding apparatus, system, method, and forceps device for facilitating placement of sutures in a surgical procedure. The apparatus including a shaft portion having a non-circular aperture extending laterally therethrough and a blade portion having a shank extending at an angle from the shaft portion and a blade having a blade aperture extending from the shank. The system includes a plurality of the apparatuses held substantially parallel by an elongated rod through the apertures of the shafts. The blade apertures guide the at least one suture to a desired location to pierce through a target body tissue.

A method of additive manufacturing an object featuring properties of a hard bodily tissue, comprises: dispensing and solidifying a plurality of non-biological material formulations to sequentially form a plurality of hardened layers in a configured pattern corresponding to a shape of the object. The method forms voxel elements containing different material formulations at interlaced locations to provide a three-dimensional textured region spanning over the portion. The material formulations and the interlaced locations are selected such that the textured region exhibits, once hardened, a stress variation of at most ±20% over a strain range of from about 0.1% to about 0.3%.

The invention discloses a composition for preventing and treating plateau erythrocythemia and application of the composition, and relates to the technical field of pharmaceutical composition preparation. The composition is prepared from PT2385 and salidroside. The combination of PT2385 and salidroside can effectively inhibit hyperplasia of red blood cells of HAPC rats, reduce hemoglobin and relieve blood flow stasis and microcirculation disturbance of body tissues and organs caused by hypoxia, so that hypoxia phenotypic characteristics of the HAPC rats are improved. In addition, free radicals can be effectively removed, oxidative stress, peroxidation reaction and inflammatory reaction induced by hypoxia are inhibited, the mitochondrial function is protected, and the dysfunction of HAPC rat tissue and organ injury is improved. The problem that in the prior art, an effective medicine for preventing and treating plateau erythrocythemia is lacked is solved.

A medical sampling device for use with an endoscope or catheter for flushing a body cavity and / or sampling a body fluid and / or body tissue, the endoscope or catheter having a suction channel and a suction connector in fluid communication with the suction channel, the sampling device comprising a suction inlet for connection to the suction connector, a suction outlet for connection to a vacuum source, a sampling outlet for connection to a sample container, a sampling inlet for connection to the sample container, and a valve having a valve member and a valve housing, wherein the valve member has a first chamber and a second chamber and is rotatable relative to the valve housing between a first position in which the first chamber establishes fluid communication between the suction inlet and the sampling inlet, a second position in which the second chamber establishes fluid communication between the sampling outlet and the suction outlet, and a third position in which one of the first chamber and the second chamber establishes fluid communication between the suction inlet and the suction outlet.

A tracker system for use in image guided surgery is disclosed. The tracker system may couple to wet tissue and may include a navigation tracker and a base pad that couple to each other. The base pad may be fabricated from a plurality of nonwoven nanofibers. The base pad is configured to couple to body tissue of a patient via at least one of adsorption, hydration equilibrium, and macromolecular interpenetration.

Disclosed is a computer-implemented method for real-time detection of cancerous cells in a body tissue that includes capturing one or more images of a microscopic slide sample of the body tissue, pre-processing the captured one or more images, detecting and extracting a plurality of regions of interest in the pre-processed images using a cell detection process, wherein each region of interest includes one or more cells of interest, segmenting each individual cell in the regions of interest and extracting pixel content of each segmented cell, extracting semantic features from each segmented cell image using an embedding extraction model, classifying each individual cell in cancerous or benign class based on corresponding extracted sematic features, and predicting whether the microscopic slide sample classifies in cancerous or benign class, based on one or more positions and relationships among one or more cells classified as cancerous, using a slide level decision model.

A system for closing trocar wound sites includes a suture engagement device and a guide to direct the device through the body tissues. An improved needle and guide instrument set allows for the surgical placement of suture to be completed "blind," namely, without the aid of an endoscope for direct visualization of the abdominal cavity. The guide can include markings to accurately determine a depth of the guide and, therefore, accurately determining a suture fascial tissue bite distance. This may be advantageous in certain surgical procedures where an endoscope is not being used or does not provide adequate visualization of the surgical site.

An engineered adhesive fashion tape element comprising a constructed dynamic function includes a multilayered embodiment with strategically placed predetermined predisposed direction and designed with multilayered materials, a modern dynamic function solution lifting projecting and supporting a user's breast tissue and body tissue to defy gravity for a sustained period while wearing and functioning with daily activities. An adhesive tape and methodology to replace wearing a bra, for a healthier and improved solution so the user can have an alternative to wearing an underwire bra, and traditional bra, shapewear, breast tissue and body tissue shaping structure. An improved alternative to wearing an adhesive bra cup and shaping garments with a variety of fashion which achieves projection lift support and defies gravity for the breast tissue and body tissue.

The present invention belongs to the field of ultrasonic imaging technology and provides a method for dynamic image processing, including: acquiring multiple ultrasonic images of the area to be imaged, dividing the total grayscale range of the image into multiple step grayscale ranges based on the multiple ultrasonic images; extracting the ultrasonic image to be processed based on the step grayscale ranges to obtain multiple ultrasonic feature maps; processing the multiple ultrasonic feature maps to obtain multiple processed ultrasonic feature maps; merging the multiple processed ultrasonic feature maps to obtain a target ultrasonic image. The present invention also provides an imaging device for implementing the above-mentioned dynamic image processing method, which is particularly suitable for ultrasonic imaging of body tissues with periodic physiological characteristics. The present invention automatically divides the grayscale of the ultrasonic image according to the actual situation of the area to be imaged, without the need for manual intervention or presetting a fixed grayscale range. It can selectively enhance the ultrasonic image and suppress noise and speckle, thereby improving the imaging quality of the target ultrasonic image.

The invention belongs to the technical field of postoperative compression hemostasis equipment, and particularly relates to a thoracic cavity postoperative compression hemostasis protection device which comprises a compression cloth piece, a through hole is formed in the upper surface of the compression cloth piece, a protection cover is fixedly connected to the hole wall of the through hole, and two symmetrically-distributed arc-shaped open grooves are formed in the outer wall of the bottom end of the protection cover; the bottom end of the protective cover is fixedly sleeved with an elastic sealing rubber cover, and the inner wall of the protective cover is fixedly connected with a compression hemostasis mechanism. The chest post-operation compression hemostasis protection device not only has the functions of compression hemostasis, sealing isolation protection and visual compression force, but also has the capability of accurately controlling the compression force to avoid the situation that the compression force is too large or too small, and also has the function of preventing body tissues on the two sides of an incision after the chest operation from being pulled to prevent the incision from being secondarily damaged, so that the safety of a patient is improved. The use reliability of the device is effectively improved, the recovery safety and comfort of a patient are improved, and the compression hemostasis and recovery effects of the patient after the thoracic surgery are guaranteed.

The application provides an endoscopic imaging system field mask obtaining method and device, wherein the endoscopic imaging system field mask obtaining method comprises the following steps: firstly, imaging a target object to obtain a target image; then, determining the positions of feature pixel points in the target image according to the pixel values of the target image; then, forming a binary image according to the positions of the feature pixel points; finally, performing morphological processing on the binary image to obtain an endoscopic imaging system field mask. Through the endoscopic imaging system field mask obtaining method, the circular window region of the fiber bundle end face can be accurately identified, and the endoscopic imaging system field mask can be obtained at a high speed. The obtained endoscopic imaging system field mask has a good shielding effect on the region outside the circular window of the fiber bundle end face, and is convenient for diagnosing the body tissue lesion condition of a subject.

The application relates to the technical field of medical instruments, in particular to a mirror holding robot, which comprises a general base, a plurality of branch chains, a movable platform and a laparoscope. The first ends of the branch chains are rotatably arranged relative to the general base, and the first ends of at least three branch chains are arranged in a circumferential interval around a same center point. The movable platform is rotatably connected to the second ends of the branch chains, and the branch chains are driven to cooperate with the laparoscope through the movable platform. The plurality of branch chains form a parallel mechanism, and are connected to the laparoscope through the movable platform. A constraint relationship is formed among the plurality of branch chains, and the translation freedom of the laparoscope is limited. That is to say, the parallel mechanism formed by the plurality of branch chains can make the laparoscope rotate around a telecentric fixed point, and the telecentric fixed point does not need to be fixed by an algorithm of a control system. No matter how the algorithm is, the laparoscope will not produce a transverse displacement under the driving of the plurality of branch chains, so that tearing and damage to the body tissue of a patient can be avoided.

The present invention provides muscle-derived progenitor cells that show long-term survival following transplantation into body tissues and which can augment non-soft tissue following introduction (e.g. via injection, transplantation, or implantation) into a site of non-soft tissue (e.g. bone) when combined with a biocompatible matrix, preferably SIS. The invention further provides methods of using compositions comprising muscle-derived progenitor cells with a biocompatible matrix for the augmentation and bulking of mammalian, including human, bone tissues in the treatment of various functional conditions, including osteoporosis, Paget's Disease, osteogenesis imperfecta, bone fracture, osteomalacia, decrease in bone trabecular strength, decrease in bone cortical strength and decrease in bone density with old age.

A device and related method that utilizes magnetic torques and / or forces to reduce scoliosis deformity. By torquing and / or forcing a scoliotic spine toward a non-scoliotic shape for enough time and / or repetitions, a scoliosis deformity can be reduced, due to reforming and / or remodeling of body tissues.

Ultrasound systems and methods transmit wideband ultrasound via a probe to excite and detect markers in bodily tissue (e.g., breast, lung). For example, a transmitted pulse ensemble can advantageously include pulses with different frequencies from on another. Returning ultrasound energy detected by the probe is processed via a return signal processing chain to discern the response of a marker from other detected ultrasound. The processing is sufficiently fast to accommodate movement of a typically handheld probe, while providing accurate localization. Processing can include: RF filtering and mixing, demodulation, and "image" processing based on known geometry of the marker and its response signature. Target detection can include brightness mapping, sigma mapping with frame-to-frame comparisons, and segmentation mapping. Target analysis can include ranking targets based on a set of target characterizing criteria. Optionally, a nonlinearity is introduced into the transmissions, and used in discerning the marker responses.

A system and method for electrical stimulation of a body tissue. An array of microneedles, formed from an electrically conductive material are adapted for puncturing a surface of the tissue. A processing unit is configured to determine from a signal when the microneedles in the microneedle array are in a predetermined position in the tissue or when tissue surrounding one or more microneedles has been ablated.

A placement tool (200) for assisting in the treatment of a subject in an external radiation therapy program including one or more external radiation therapy treatment sessions includes an inserter (204) having a proximal end (40) and a distal end (20), the inserter configured for insertion through an entrance into a tube (602) connected to body tissue (610) of the subject, the inserter including an elongate member (210) provided with an elongate member lumen (214) configured to receive an effector shaft (310) of a steering guide (300), and an elongate member lumen (214) configured to insert the effector shaft (310) into the lumen (214) from outside the entrance of the tube. and a guide strand (218) for guiding the guide strand (218) into the lumen (214), the guide strand (218) being at least partially disposed within the lumen (214) and constrained at or toward the distal end (20) of the guide strand (218) to limit or prevent sliding of the guide strand (218) in a proximal direction relative to the lumen (214), wherein the placement tool (200) is configured to move and / or secure the target vessel (602) and body tissue (610) relative to an ionizing radiation therapy beam for an external beam radiation therapy treatment session.

The utility model discloses a plasma operation electrode cutting in-vitro tissue temperature test platform, which comprises a plasma host, a plasma operation electrode, a temperature measurement console, a temperature recorder, a time synchronization controller and a computer, and is characterized in that the plasma operation electrode is connected with an operation electrode interface of the plasma host through a lead; according to the test platform, the plasma operation electrode can be conveniently clamped and fixed by arranging the adjusting sliding block, the annular clamping frame and the anti-skid layer, and the spatial position of the plasma operation electrode clamped and fixed by the electrode clamping mechanism can be conveniently and accurately adjusted in the x direction, the y direction and the z direction by arranging the supporting column, the connecting sleeve, the connecting block, the positioning bolt and the connecting rod; the depth of the plasma operation electrode tool bit fixed on the electrode clamping mechanism inserted into the in-vitro tissue and the distance between the plasma operation electrode tool bit and the temperature measuring probe can be conveniently controlled, so that temperature data of different depths in the in-vitro tissue can be conveniently measured, and the temperature of the in-vitro tissue can be conveniently and accurately measured.

A surgical kit for providing a cryoprotective composition configured to be applied during cryotreatment of a patient includes: a first container containing a predetermined amount or volume of a biodegradable and / or bioerodible fluid agent; and a second container containing a predetermined amount or volume of a non-toxic cryoprotectant agent. The predetermined amount or volume of the of biodegradable and / or bioerodible fluid agent and the predetermined amount or volume of a non-toxic cryoprotectant agent are configured to be mixed together to form the cryoprotective composition in which a therapeutically effective amount of the cryoprotective composition deposited in a body space of the patient in proximity to the cryotreatment remains within at least a portion of the body space for a duration of the cryotreatment and at least a portion of a body tissue proximate to the body space is viable after the cryotreatment.