85 results about "Tissue volume" patented technology

A method for providing a plyometric exercise to a subject, including: selecting at least one target region of interest (RO I) in a subject body for a plyometric exercise; positioning at least 2 electrodes above a tissue volume at the selected target ROI; generating at least one electric field by at least one pulse generator electrically coupled to the at least 2 electrodes; delivering the at least one electric field between the at least 2 electrodes to the tissue volume with parameter values selected for contracting at least one muscle in the tissue volume as part of a plyometric exercise of the at least one muscle.

Disclosed are a method and device for analyzing human tissue on the basis of a medical image. A tissue analysis device generates training data including a two-dimensional medical image and volume information of tissue by using a three-dimensional medical image, and trains, by using the training data, an artificial intelligence model that obtains a three-dimensional size, volume, or weight of tissue by dividing at least one or more normal or diseased tissues from a two-dimensional medical image in which a plurality of tissues are displayed overlapping on the same plane. In addition, the tissue analysis device obtains a three-dimensional size, volume, or weight of normal or diseased tissue from an X-ray medical image by using the artificial intelligence model.

A method for a system for characterizing a radiation dose distribution in a radiotherapy treatment plan is disclosed. The radiotherapy treatment plan is used to treat an anatomical structure with a radiotherapy device. The system includes a processor and a user interface. The processor is configured to: receive data obtained from a radiation simulation at the anatomical structure under a nominal condition and one or more artificially applied uncertainty conditions; generating a plurality of dose distributions including dose-volume histograms (DVHs) using the received data, each DVH representing a tissue volume of the anatomical structure receiving a respective radiation dose, the DVHs including a nominal DVH corresponding to a nominal condition, and one or more uncertain DVHs corresponding to one or more artificially applied uncertain conditions; and determining a dose distribution characteristic based on statistical characteristics of the generated DVH. The user interface is configured to display the determined dose distribution characteristic to a user.

The invention belongs to the technical field of traditional Chinese medicines, and particularly relates to a composition for improving osteothione as well as a preparation method and application thereof. The invention provides a composition for improving osteothione, which is prepared from the following components in parts by mass: 500 to 600 parts of folium cortex eucommiae, 300 to 350 parts of male flower of cortex eucommiae, 300 to 350 parts of wine-processed rhizoma polygonati, 300 to 350 parts of radix fici simplicissimae, 200 to 250 parts of maca, 90 to 120 parts of natto, 60 to 80 parts of calcined oyster shell and 0.5 to 1 part of ossein. The composition can increase the number of bone trabecula, increase bone density, bone volume fraction, the number of bone trabecula, bone trabecula thickness and bone surface area-to-tissue volume ratio, lower bone surface area-to-bone volume ratio and bone trabecula separation degree, enhance osteoblast activity, inhibit osteoclast maturation and differentiation and relieve inflammation, and is high in safety performance. In conclusion, the composition provided by the invention has a certain improvement effect on osteoporosis.

A method operable to track reconstruction of a tissue volume from disjoint acoustic sensors. The method includes placing modular acoustic elements individually at positions with respect to the tissue volume, tracking the positions of the modular acoustic elements individually, creating a volumetric distribution map of the tracked modular acoustic elements, registering the volumetric distribution map, and reconstructing an image of the tissue volume or transmit a focused ultrasound by providing the registered distribution map to a beamforming algorithm.

Provided herein are ultrasound imaging systems and methods of estimating a size / volume of an anatomical feature of a subject using an ultrasound imaging system. As described, the systems and methods combines automatic image segmentation through artificial intelligence with inertial measurement unit data to improve the accuracy of organ and tissue volume measurements. The systems and methods described herein can be applied to measure a number of different anatomical features (e.g., an organ, a tumor, a fluid region, a cyst, and / or an intraperitoneal hemorrhage), and cam assist in diagnosing conditions such as organ hypertrophy or atrophy.

A method of modifying biomechanical properties of tissue in a region of interest includes application of laser energy to one or more first volumes of tissue in the region of interest to cause softening via photodegradation, and application of laser energy to one or more second volumes of tissue within the region of interest to cause stiffening via photocrosslinking. The one or more second volumes are different from the one or more first volumes.

A method for cross-referencing of 2D ultrasound scans of a tissue volume comprises generating first and second 2D representations of a target anatomy, respectively, from first and second series of 2D ultrasound images of the tissue volume generated. The method includes generating first and second simulated 2D representations of the target anatomy, respectively, from the second and first series of 2D ultrasound images. The 2D and simulated 2D representations are processed to at least substantially match pixel positions in the 2D and simulated 2D representations associated with the target anatomy. The method includes determining first and second correspondence transformation matrices from the processed 2D and simulated 2D representations, and using the first and second correspondence transformation matrices to determine, for a location in the second series of 2D ultrasound images associated with the target anatomy, a corresponding location in the first series of 2D ultrasound images.

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 utility model provides a liquid subpackage specimen bottle capable of measuring tissue volume, and belongs to the technical field of tissue measurement. Comprising a specimen bottle main body, a pressing mechanism is arranged above the specimen bottle main body, scale marks are arranged on the surface of the specimen bottle main body, the pressing mechanism comprises a first fixing plate, a first mounting bin is arranged above the first fixing plate, a fixing bin is arranged below the first fixing plate, and a second mounting bin is arranged below the fixing bin. The fixing bin is spirally fixed to the upper portion of the specimen bottle body, and a first pressing plate is arranged in the first mounting bin. According to the formalin fixing device, formalin fixing liquid and water can be preloaded separately, the size of a tissue specimen can be accurately measured, meanwhile, a user can be prevented from making contact with formalin when the specimen is fixed, smell leakage is avoided, and the body health of the user is protected.

A method includes generating a series of two-dimensional (2D) ultrasound images of the tissue volume associated with a plurality of positions, respectively. The method includes, for a respective pair of consecutive 2D ultrasound images of the series of 2D ultrasound images: generating a difference image from the respective pair of consecutive 2D ultrasound images; estimating, using a deep neural network, an estimated distance between the positions associated with the respective pair of consecutive 2D ultrasound images based on a classification of the difference image, wherein the deep neural network is trained to classify the difference image based on one of a plurality of predefined classes. The method includes rendering the 3D ultrasound image of the tissue volume based on the series of 2D ultrasound images and the estimated distance.

The present invention relates to device, system and method for determining a blood perfusion value of a subject as well as an appropriate sensor. The device comprises circuitry configured to: obtain a photoplethysmography, PPG, signal acquired by a sensor including a light emitter and a light detector at a measurement location of the subject; determine a modulation depth of the obtained PPG signal; and determine the blood perfusion value of the subject by normalizing, based on measurement- related information indicative of the length of the light path of the light through the subject's tissue from the light emitter to the light detector and / or of the tissue volume of the subject's tissue through which the light travels from the light emitter to the light detector, the determined modulation depth or a perfusion index determined from the modulation depth.

To provide systems and methods for histotripsy and immune therapies.SOLUTION: In some embodiments, histotripsy can be applied to a target tissue volume to lyse and solubilize the target tissue volume to release tumor antigens. In some embodiments, an immune response of the treatment can be evaluated. In other embodiments, an immune therapy can be applied after applying the histotripsy. In one embodiment, the lysed and solubilized cells can be extracted from the tissue. The extracted cells can be used to create immune therapies, including vaccines.SELECTED DRAWING: Figure 1

A system for treating fat tissue, including: an ultrasound applicator, including: two or more ultrasound transducers configured to generate and direct ultrasonic waves to a selected tissue volume including fat tissue; a control unit, including: a control circuitry electrically connected to the two or more ultrasound transducers, wherein the control circuitry is configured to activate the two or more ultrasound transducers to heat the selected tissue volume.

The present invention relates to a planning unit, an ophthalmological laser therapy device and a planning method for generating control data with an optimised cut geometry for access cuts during correction of the refraction of an eye with an optical main axis and a cornea by way of cornea modification within the tissue of the cornea. The method comprises receiving data representing a need for refractive correction, calculating a tissue volume of the cornea to be removed, and calculating cut surface data, wherein the cut surface data comprise cap cut data, lenticule cut data, side cut data and access cut data. The access cut data represent a first access cut and a second access cut, wherein the cut surface data further comprise side surface segment cut data representing a side surface segment and at least one cut parameter modification to be used therein. The present invention further relates to a computer program product, a data signal and a computer-readable non-volatile storage medium.

The present invention relates to a planning unit and a planning method, and to an ophthalmological laser therapy device for generating control data with an optimised cut geometry for edge zone cuts during correction of the refraction of an eye having an optical main axis and a cornea by means of cornea modification. The method comprises receiving data representing a need for refractive correction, calculating a tissue volume of the cornea to be removed and calculating cut surface data, wherein the cut surface data comprise cap cut data, lenticule cut data, optionally side cut data and access cut data. The invention further relates to a computer program product, a data signal, a computer-readable non-volatile storage medium and a therapeutic method for correcting the refraction of an eye.

The present invention relates to a planning unit (P) for generating control data for correcting the refraction of an eye by corneal modification, comprising an interface (S1) for receiving data on a hyperopic or myopic refraction correction requirement of an eye with a cornea (50), and a calculation device (C) which is connected to the interface (S1) and configured to receive the data on the refraction correction requirement. The object of the present invention is to describe a device and method which can ensure a correction of ametropia over a wide diopter range. The object is achieved by a planning unit (P), the calculation device (C) of which is designed to calculate a first tissue volume (110) of the cornea (50) and a cut surface (70) as well as a displacement of the first tissue volume (110), wherein the first tissue volume (110) has a subtractive refraction change value, the first tissue volume (110) in conjunction with the additive refraction change value, and the subtractive together with the additive refraction change value results in the refraction correction requirement. The task is further solved by a corresponding planning procedure and by a computer program product.

A system for treating fat tissue, including: an ultrasound applicator, including: two or more ultrasound transducers configured to generate and direct ultrasonic waves to a selected tissue volume including fat tissue; a control unit, including: a control circuitry electrically connected to the two or more ultrasound transducers, wherein the control circuitry is configured to activate the two or more ultrasound transducers to heat the selected tissue volume.

In a method for obtaining a first length from a first two-dimensional image (71) representing a cross-section of a three-dimensional tissue volume at a first time, and a second length from a second two-dimensional image (81) representing a cross-section of a three-dimensional tissue volume at a second time, a first point (61.1) and a second point (61.2) are marked in the first two-dimensional image (71). Next, a third piece of data relating to the first two-dimensional image (71) is obtained. A fourth point (61.4) and a fifth point (61.5) are marked in the second two-dimensional image (81), and a sixth piece of data relating to the second two-dimensional image (81) is obtained. The marked first, second, fourth, and fifth points (61.1, 61.2, 61.4, 61.5), along with the third and sixth data, are used to check whether the positions and orientations of the first two-dimensional image (71) and the second two-dimensional image (72) match sufficiently. If they match, the first length is determined from the marked first and second points (61.1, 61.2) and the third data, and the second length is determined from the marked fourth and fifth points (61.4, 61.5) and the sixth data. In particular, the third and sixth data are obtained by marking the third point (61.3) and the sixth point (61.6), respectively. The third point (61.3) and the sixth point (61.6) may correspond to physiological landmarks visible in the first image (71) and the second image (81), respectively.

Some embodiments of the invention relate to an applicator for applying ultrasound energy to a tissue volume, comprising: an array comprising a plurality of ultrasound transducers, the transducers arranged side by side, the transducers configured to emit unfocused ultrasound energy suitable to thermally damage at least a portion of the tissue volume, each of the transducers comprising a coating thin enough so as not to substantially affect heat transfer via the coating to the tissue; and a cooling module configured to apply cooling via the transducers to prevent overheating of a surface of the tissue volume being contacted by the transducers.

A catheter and patch electrode system is provided for use with an ablation generator, having a 4-wire interface for improved impedance measurement. The 4-wire interface includes a pair of source connectors across which an excitation signal is produced and a pair of sense connector wires across which the impedance is measured. The system further includes a cable that connects the generator to a catheter that includes a shaft with an ablation tip electrode disposed at a distal end. The impedance sensor circuit produces an excitation signal across the source connectors, which is then carried to the catheter by the cable, then to the tip electrode, travels through the complex load (tissue volume), and returns to the generator via a patch electrode. The impedance is measured by observing the voltage drop across the sense connectors caused by the excitation signal.

The present invention relates to a planning unit, an ophthalmic laser therapy device, and a planning method for generating control data with an optimized cutting geometry for access cuts when correcting the refraction of an eye with a main optical axis and a cornea through corneal modification within the corneal tissue. The method comprises receiving data representing a refraction correction requirement, calculating a corneal tissue volume to be removed, and calculating cutting surface data, wherein the cutting surface data includes cap cutting data, lenticule cutting data, lateral cutting data, and access cutting data.The access cut data represents a first access cut and a second access cut, wherein the cutting surface data further comprises side surface segment cutting data representing a side surface segment and at least one cutting parameter modification to be used therein. The present invention further relates to a computer program product, a data signal, and a computer-readable non-volatile storage medium.

A system may include electrodes on at least one lead configured to be operationally positioned for use in modulating a volume of neural tissue, a neural modulation generator configured to deliver energy using at least some electrodes to modulate the volume of neural tissue, a programming system configured to program the programmed modulation parameter set, including determine electrode fractionalizations for the electrodes based on a target multipole. The programmed parameter set may include the determined electrode fractionalizations. The target multipole may be used to determine electrode fractionalizations having at least three target poles that directionally and progressively stack fractionalizations of target poles to provide a linear electric field over the volume of tissue. The neural modulation generator may be configured to use the programmed modulation parameter set to provide the linear electric field over the volume of tissue.

A system for treating fat tissue, including:an ultrasound applicator, including:two or more ultrasound transducers configured to generate and direct ultrasonic waves to a selected tissue volume including fat tissue;a control unit, including:a control circuitry electrically connected to the two or more ultrasound transducers, wherein the control circuitry is configured to activate the two or more ultrasound transducers to heat the selected tissue volume.

The recovery of an intact volume of tissue proceeds with a delivery cannula distal end positioned in confronting adjacency with the volume of tissue to be recovered. A tissue cutting and capture assembly formed of a plurality of metal leafs is deployed from the distal end of the delivery cannula. The tips of these leafs carry a pursing cable assembly, which is electrically excited to electrosurgically cut around and circumscribe the tissue volume. These pursing cables are tensioned to complete the envelopment of the tissue volumes by drawing the leaf tips together. An essential attribute of the disclosed apparatus is the confinement of the path of electrical conduction of constant current required to achieve tissue cutting to only those portions of the deploying and retracting resistively heated portion of the electrically conductive cutting and pursing cable that are in direct contact with tissue.

The invention discloses a reading device for accurately measuring the volume of a specific tissue by a drainage method, the reading device comprises a placing box, a quantitative cap bottle and an automatic measurer, a plurality of placing tables are vertically and horizontally arranged in a box bin of the placing box, and the quantitative cap bottle can be inversely mounted on the upper parts of the placing tables to form a quantitative measurement chamber; a substrate bin is arranged on the lower portion of the box bin, a plurality of matching assemblies in one-to-one correspondence with the containing tables are installed in the substrate bin, vertical through rods are installed on the upper surfaces of the containing tables, the bottom ends of the vertical through rods communicate with the inner space of the vertical through rods and the inner space of the quantitative measuring cavity, and the vertical through rods are hollow and provided with floating blocks; the automatic measurer comprises a main machine barrel, a control panel, a liquid injection head and a liquid supply butt joint, a storage battery, a metering pump and a control mainboard are installed in the main machine barrel, a liquid level detection head electrically connected with the control mainboard is installed at the bottom end of the liquid injection head, tedious liquid changing operation is not needed during large-scale detection, and efficient measurement can be conducted.

A magnetic resonant imaging (MRI) review workstation includes a control processor, and a display integrated or otherwise operatively coupled with the control processor, wherein the control processor is configured to receive and analyze magnetic resonant imaging information pertaining to an imaged volume of tissue, and to cause to be displayed on the display output information that reflects or is otherwise indicative of an absorption rate of a contrast agent in the volume of tissue.

The present invention relates to an injectable composite material and its uses, an injection containing the injectable composite material, and a method for enhancing the suspension stability of polymer microspheres in water. In the present invention, a water-agarose system is used to achieve good dispersion of polymer microspheres and prevent their aggregation and sedimentation. The products of the present invention are used in the field of medical aesthetics, can be injected into the dermis and / or subcutaneous tissue to fill and increase tissue volume, correct structural defects such as asymmetry, contour deformity and volume defect, and can also be used to improve the skin condition.

The invention belongs to the field of intelligent medical treatment, and particularly relates to a method, equipment and medium for predicting the prognosis effect of fat transplantation treatment of eyeball retraction. The method comprises the following steps: S1, acquiring a bony orbital volume difference, an orbital cavity tissue soft body volume difference, an eyeball convexity variable quantity and a preoperative injection volume of a patient to be treated before an operation; s2, based on the difference between the preoperative injection volume and the volume of the orbital cavity soft tissue, obtaining a predicted difference between the volume of the orbital cavity soft tissue after an operation; and S3, inputting the bony orbital volume difference and the predicted postoperative orbital cavity soft tissue volume difference into any prediction model of the eyeball convexity variation to obtain the predicted postoperative eyeball convexity variation. The absorption coefficient is obtained through clinical data evaluation; on the basis of the absorption coefficient, the injection volume is corrected before an operation by combining prediction of a prediction model of eyeball convexity variation based on the orbital volume and the orbital cavity tissue volume, so that a better postoperative treatment effect is achieved.

A method for cross-referencing of 2D ultrasound scans of a tissue volume comprises generating first and second 2D representations of a target anatomy, respectively, from first and second series of 2D ultrasound images of the tissue volume generated. The method includes generating first and second simulated 2D representations of the target anatomy, respectively, from the second and first series of 2D ultrasound images. The 2D and simulated 2D representations are processed to at least substantially match pixel positions in the 2D and simulated 2D representations associated with the target anatomy. The method includes determining first and second correspondence transformation matrices from the processed 2D and simulated 2D representations, and using the first and second correspondence transformation matrices to determine, for a location in the second series of 2D ultrasound images associated with the target anatomy, a corresponding location in the first series of 2D ultrasound images.