Abstract: An adhesive hydrogel has low contact resistance against the body surface and excellent conformability and adhesiveness to the body surface, so that noise generation can be reduced. Such adhesive hydrogel enables measurements of weak fetal heart rate signals. The adhesive hydrogel includes a polymer matrix prepared by crosslinking-copolymerization of an acrylamide derivative, which is a nonionic polymerizable monomer including a polymerizable carbon-carbon double bond in a molecule, and polyfunctional (meth)acrylamide, which is a crosslinkable monomer comprising 2 or more polymerizable carbon-carbon double bonds in a molecule, water, a polyvalent alcohol, and an electrolyte salt, wherein a laminate of the adhesive hydrogel with an Ag/AgCl sheet exhibits the impedance of 1? to 100? at the frequency of 0.1 Hz measured in accordance with the method of ANSI/AAMI EC12:2000, and the dynamic elastic modulus G? at the frequency of 1 Hz measured at 25° C. and dispersed frequencies is 1.0×103 Pa to 1.0×104 Pa.

Abstract: A biological information measurement apparatus includes a set time information acquisition unit configured to acquire information indicating a set time point being set to determine whether or not a subject is wearing the biological information measurement apparatus, a determination unit configured to determine whether or not the subject is wearing the biological information measurement apparatus at the set time point, and an instruction signal output unit configured to, if the determination unit determines that the subject is not wearing the biological information measurement apparatus at the set time point, output an instruction signal instructing provision of assistance to the subject in wearing the biological information measurement apparatus.

Abstract: Embodiments relates to a method, apparatus and system comprising a resting device for resting a patient, the resting device comprising a substrate having a contact surface for contacting the patient, one or more sacs comprising a material and associated with the contact surface of the substrate, one or more sensors that are incorporated in the one or more sacs, and a patient recognition algorithm to detect changes in a user profile; wherein the system is configured to at least (a) combine information and construct the user profile, wherein the information comprises a first data from a pressure ulcer risk scale and a second data obtained via the resting device over time, and (b) automatically perform an assessment of a risk of pressure ulcer in the patient.

Abstract: An apparatus for estimating bio-information may include a sensor configured to emit light to an object and detect light scattered or reflected from the object and a processor configured to acquire, based on an intensity of the detected light, a first absorbance coefficient change and a first scattering coefficient change, relative to a reference time point, acquire a second scattering coefficient change based on the first absorbance coefficient change, and correct the first scattering coefficient change based on the acquired second scattering coefficient change.

Abstract: Methods, systems, and apparatus for determining probabilistic measures of seizure activity (PMSA) values based on a plurality of seizure detection algorithms and/or body signals used as inputs by the seizure detection algorithms. Use of the PMSA values to detect seizure activity based on a consensus of the algorithms and/or body signals, and/or warn, log, administer a therapy, or assess the efficacy of a therapy.

Abstract: The present invention relates to a device, system and method for determining at least one vital sign of a subject.

Abstract: A bio-signal analysis method uses a bio-signal analysis apparatus for analyzing a bio-signal based on output light emitted from an object after being output from a light source, and includes a step of providing a classification unit machine-trained based on training data in which measurement values for each wavelength of the output light and concentration for each of a plurality of chromophore materials match each other; a step of inputting the measurement values of the output light emitted from the object measured by the bio-signal analysis apparatus into the classification unit; and a step of outputting chromophore concentration output from the classification unit with respect to the input. At this time, the light source includes a plurality of light emitting elements for emitting output light having different wavelengths.

Abstract: A photoplethysmography (PPG) circuit obtains PPG signals at a plurality of wavelengths of light reflected from tissue of a user. A processing device generates parameters using the PPG signals to screen the user for an infection, such as sepsis, influenza and/or COVID-19. The processing device may also determine a severity level of the infection and a confidence level in the determination. The parameters may include a measurement of nitric oxide (NO) level, respiration rate, heart rate and/or oxygen saturation.

Abstract: A method for performing a diagnostic or therapeutic procedure on a partial occlusion within a blood vessel, includes positioning a guide having a sensor configured and adapted to measure at least one of pressure, volume or flow within a blood vessel, advancing the guide through an at least partial occlusion within the blood vessel such that the sensor is downstream of the occlusion, measuring at least one of pressure, volume or flow downstream of the occlusion using the sensor and analyzing data obtained from the sensor to assist in determining the viability of tissue of the blood vessel downstream of the occlusion.

Abstract: We disclose a system and method for estimating values of hemodynamic parameters of a subject, by calibrating arterial pressure during one time and tracking arterial pressure at another time.

Abstract: In inspection information display device, method, and program, data related to a patient such as a medical image can be referred to in an appropriate order. A display controller displays one or more pieces of inspection information indicating that there is the data related to the patient in association with an elapsed time from a reference time on a display. In a case where there is a plurality of times that may be the reference time, a selection unit selects, as the reference time, a specific time from the plurality of times. The specific time may be, for example, the oldest time among the plurality of times.

Abstract: An image processing apparatus includes projection unit configured to generate first two-dimensional image data by applying a projection process to three-dimensional image data, acquisition unit configured to acquire a second parameter related to image processing based on a first parameter related to the projection process, and image processing unit configured to generate second two-dimensional image data by applying the image processing to the first two-dimensional image data using the at least one or more second parameters.

Abstract: Described are anatomically specified conformation computed tomography (ASC-CT) systems, which are fully tomographic x-ray imaging systems configured to conform to the contour of the anatomy of interest and perform a near scatter-free image acquisition, thereby providing an enhanced contrast resolution in the reconstructed CT image volume. The apparatus comprises independently controlled, yet synchronized, x-ray generation and detection assemblies configured to perform a tomographic image acquisition. The method of image acquisition entails adjusting the layout of the x-ray panels within the detector assembly based on the shape of the anatomy, followed by capturing a collimated, narrow x-ray beam composed of primary photons while sweeping a circular trajectory around the anatomy placed in the field of view, resulting in a conforming sinogram of the anatomy.

Abstract: A mammography apparatus according to the present invention includes a mounting part coupled to an elevating part so as to be moved upward or downward and having rail parts, a fastening part inserted into the rail parts and slidably coupled to the mounting part and a sensing part installed on the mounting part and configured to generate an electrical signal by being brought into contact with the fastening part so as to detect information about the fastening part, in which the sensing part includes a contact part installed at an end at an entry side of the fastening part slidably coupled to the mounting part and a recognizing part installed on an inner surface of the mounting part which faces the contact part.

Abstract: An X-ray diagnosis apparatus according to an embodiment includes an X-ray limiter having four diaphragm blades; and a console on which four physical operating units that correspond to the four diaphragm blades are placed at four positions. When viewed from the side of the operator of the console, the four operating units are placed on the far side, the near side, the left side, and the right side. The far-side operating unit, the near-side operating unit, the left-side operating unit, and the right-side operating unit correspond to the upper diaphragm blade, the lower diaphragm blade, the left-side diaphragm blade, and the right-side diaphragm blade, respectively, with reference to an X-ray image displayed in a display.

Abstract: The present invention relates to mobile imaging. In order to provide a mobile medical imaging system (100) with improved positioning characteristics, A positioning arrangement (126) is provided. The positioning arrangement comprises at least one positioning sensor (128). The at least one positioning sensor determines a current distance between a mobile structure of a mobile medical imaging system and at least one object in an environment of the mobile medical imaging system. The at least one positioning sensor operates in a first mode if a current distance is greater than a predetermined threshold, and/or in a second mode, if the current distance is smaller than the predetermined threshold. In the first mode, the at least one positioning sensor operates at a first spatial resolution, and, in the second mode, the at least one positioning sensor operates at a second spatial resolution, which second spatial resolution differs from the first spatial resolution.

Abstract: A system and method for constructing fluoroscopic-based three dimensional volumetric data from two dimensional fluoroscopic images including a computing device configured to facilitate navigation of a medical device to a target area within a patient and a fluoroscopic imaging device configured to acquire a fluoroscopic video of the target area about a plurality of angles relative to the target area. The computing device is configured to determine a pose of the fluoroscopic imaging device for each frame of the fluoroscopic video and to construct fluoroscopic-based three dimensional volumetric data of the target area in which soft tissue objects are visible using a fast iterative three dimensional construction algorithm.

Abstract: A radiography system includes: a mammography apparatus that includes a radiation source, a radiation detector, and a compression member which compresses a breast disposed between the radiation source and the radiation detector and captures a radiographic image of the breast in a compressed state using the radiation detector; and a control device including an acquisition unit that acquires region information indicating a region of an object of interest in the breast on the basis of the radiographic image captured by the mammography apparatus and a display control unit that performs control to display the region of the object of interest on the compression member, which continues to compress the breast from the capture of the radiographic image, so as to be recognizable on the basis of the region information acquired by the acquisition unit.

Abstract: A system for processing breast tissue images includes an image processing computer and a user interface operatively coupled to the image processing computer, wherein the image processing computer is configured to obtain image data of breast tissue, processing the image data to generate a set of reconstructed image slices, the reconstructed image slices collectively depicting the breast tissue, process respective subsets of the reconstructed image slices to generate a set of image slabs, each image slab comprising a synthesized 2D image of a portion of the breast tissue obtained from a respective subset of the set of reconstructed image slices.

Abstract: The invention relates to a computer tomography apparatus for examining a body part of a large animal, comprising a computer tomography (CT) device and a platform on which the CT device is mounted. The CT device has an annular gantry and a CT table to accommodate a body part of a large animal to be examined. The gantry is immovable relative to the platform. Relative to the platform and to the gantry the CT table is horizontally movably connected to the gantry and/or the platform in such a way that the CT table can be moved into a central opening in the annular gantry. The computer tomography apparatus further comprises a positioning device which is connected to the platform and is designed to position the platform having the mounted CT device relative to a supporting surface for a large animal.

Abstract: A method for processing angiography image data by using an imaging catheter path that is directly detected from the angiography data as a co-registration path or using detected marker locations from the angiography data to generate a co-registration path. If the acquired angiography data includes synchronized cardiac phase signals and a predetermined quantity of angiography image frames not including contrast media, then a directly detected imaging catheter path is used as the co-registration path. Otherwise the co-registration path is determined based upon detected marker locations from the angiography image data.

Abstract: Scanning systems for performing computed tomography scanning may include a stator, a rotor supporting at least one radiation source and at least one radiation detector rotatable with the rotor, and a rotator operatively connected to the rotor to rotate the rotor relative to the stator. A conveyor system may include a respective conveyor extending through the rotor of the scanning system. A control system operatively connected to the scanning system and the conveyor system may be configured to automatically and dynamically increase a rate at which the rotor moves, decrease a rate at which the respective conveyor moves, and/or adjust other system parameters when the control system enters a finer pitch mode and to automatically and dynamically decrease a rate at which the rotor moves, increase a rate at which the respective conveyor moves, and/or adjust other system parameters when the control system enters a coarser pitch mode.

Abstract: A method for assessment and/or monitoring a person's cardiovascular state comprises: using a sound and vibration transducer to acquire a vascular sound signal in order to detect a vascular sound from a cervical, thoracic, abdominal, pelvic, or lower limb region of the person; filtering the vascular sound signal to isolate the vascular sound, said filtering using a filter which attenuates frequencies below a lower cut-off frequency in a range of 100-300 Hz; and analyzing the filtered sound signal in order to determine whether an indication of a dicrotic notch in the vascular sound exceeds a set threshold.

Abstract: The disclosure relates to processes, articles of manufacture, devices, and systems involving biomedical monitoring measurement and analysis. More particularly, respiratory measurement, monitoring, analysis, or related systems involving wearable sensors and receiving monitors for respiratory behavior tracking and analysis.

Abstract: An ultrasound system is used to measure the percent stenosis of a vessel in terms of residual lumen area. A measurement of volume blood flow is made at an unobstructed point of the vessel near the site of the stenosis. A measurement of the time averaged mean blood flow velocity is made at the stenosis. The quotient of these two values is computed to produce an estimate of the residual lumen area and the percent stenosis at site of the obstruction.

Abstract: The speed of sound data corresponding to transmission of ultrasound through a cancerous lesion is different than the speed of sound data corresponding to transmission of ultrasound through a benign lesion. The system can assign a coloration to a speed of sound image according to the speed of sound through the tissue as obtained from quantitative transmission ultrasound. The shape indicative of a lesion can be identified through the reflection data with the type of lesion identifiable by the coloration from the speed of sound data.

Abstract: To reduce noise which leaks to the outside in an ultrasonic diagnostic apparatus. An internal AC wiring unit 34 is composed of internal AC wiring which is installed on the input side of a power source circuit, and a shield case 38 which accommodates it. The internal AC wiring includes an inlet, a plurality of connectors, a relay substrate, and a plurality of internal AC cables. The internal AC wiring is protected from radiation noise which is generated in a casing 22 by the shield case 38. Thereby, the noise which leaks to the outside via an external AC cable is reduced.

Abstract: A resin composition, for an acoustic matching layer, that contains a binder including a resin and surface-treated metal particles; a cured product formed from the composition; an acoustic matching sheet; an acoustic wave probe; an acoustic wave measuring apparatus; a method for manufacturing an acoustic wave probe; and a material set, for an acoustic matching layer, that is suitable for preparation of the composition.

Abstract: An implantable ultrasonic vascular sensor for implantation at a fixed location within a vessel, comprising at least one ultrasound transducer, a transducer drive circuit, and means for wirelessly transmitting ultrasound data from the at least one ultrasound transducer.

Abstract: [Object] To provide an ultrasonic transducer, a diagnostic ultrasonic probe, a surgical instrument, a sheet-type ultrasonic probe, and an electronic apparatus by which both of favorable reflection characteristics and suppression of reverberation at low cost can be achieved. [Solving Means] An ultrasonic transducer for ultrasonic imaging according to the present technology includes a piezoelectric layer, an acoustic attenuation layer, and an acoustic reflection layer. The piezoelectric layer is formed of a piezoelectric material and generates ultrasonic waves. The acoustic attenuation layer is formed of an acoustic attenuation material having an acoustic impedance lower than that of the piezoelectric material. The acoustic reflection layer is arranged on a side of the acoustic attenuation layer and which is formed of an acoustic reflection material having an acoustic impedance higher than that of the acoustic attenuation material, the side being opposite to the piezoelectric layer.

Abstract: Aspects of the technology described herein relate to collection of ultrasound images depicting needles. Some embodiments include an ultrasound device having a transducer array and configured to use an aperture having a centroid that is closer to a first long side of the transducer array than a second long side of the transducer array. Certain embodiments include instructing a user to begin to insert a needle adjacent at a location that is to a particular long side of the transducer array. Some embodiments include receiving a selection of a particular long side of the transducer array. Certain embodiments include determining that a user has begun to insert a needle at a location that is adjacent to a particular long side of the transducer array.

Abstract: An ultrasound imaging device and system, and an image enhancement method for ultrasound radiography and imaging. Image enhancement coefficients of location points in a examined biological tissue are computed first according to radiography channel data, and then, weighted processing is performed on the image enhancement coefficients and beam forming data.

Abstract: The invention relates to ultrasound methods and medical diagnostic apparatus using ultrasound probing for estimation of the biological tissue elastic properties by determining the propagation velocity of shear wave and imaging the elastic properties of tissue. The method is based on the determining the shear wave front propagation velocity along and perpendicular to the axis of excitation (Ox). In order to implement the method, a power ultrasound beam of waves is used for excitation of shear wave and a plurality of ultrasound pulses is sequentially transmitted to detect the tissue displacement by means of tissue response signals. The image of at least one parameter of tissue elasticity is acquired taking into account the noise level that occurred when determining the shear wave propagation velocity. The results are displayed in the form of images of the elasticity parameters and the noise level and indication of quantitative values of elasticity parameters and noise level.

Abstract: The present disclosure provides implants, sensor modules, networks, and methods configured to establish transcutaneous power and transcutaneous bidirectional data communication using ultrasound signals between two or more medical devices located on and within a body of a patient.

Abstract: An ultrasound probe is tested for failure of 5 elements of its array transducer by operating the probe with its lens in contact with the air. The echo signals produced during this mode of operation are beamformed into the usual set of scanlines produced by the probe. The frequency response of 10 each scanline is analyzed and compared with a reference signal of the frequency response of the corresponding scanline of a known good probe of the same type as the probe under test. If a comparison reveals a variance greater than a predetermined 15 deviation, the user is alerted that the probe should be replaced.

Abstract: The invention relates to a core biopsy needle (1) for obtaining a tissue sample comprising a hollow outer needle (10) extending along a longitudinal axis (L), and an inner needle (20), which is at least partially arranged or arrangeable within said outer needle along said longitudinal axis (L), wherein said inner needle (20) comprises at least one tissue-holding surface (21), wherein said tissue-holding surface (21) is adapted such that a tissue (3) adheres to the at least one tissue-holding surface (21), when the core biopsy needle (1) is inserted into the tissue (3).

Abstract: A surgical system includes an intelligent surgical device having a drive motor supported in the housing and being in electrical communication with the power source; and control circuitry. The control circuitry includes a feedback system for monitoring a condition of the surgical device during a use thereof and for changing an operative parameter of the surgical device when a change in the monitored condition occurs. The surgical system includes a non-intelligent loading unit for selective connection to the housing of the surgical device and which is actuatable by the drive motor, the loading unit having a first and a second condition. During operation, the drive motor actuates the loading unit from the first condition to the second condition; and when the loading unit achieves the second condition, a change in the at least one monitored condition occurs and an operative parameter of the surgical device is changed.

Abstract: In one embodiment, a system (20, 30) includes a retractor (100, 100A, 1113) with a plurality of rods (120, 120A-1-124A-1, 180, 220, 320, 420, 1111A-E) that are cylindrical over part of their length, a light source (230, 330), and a fiber optic cable (229, 329), where at least one rod includes a body with an opening (122, 182, 222, 322) therein. The opening extends from an upper surface (122A, 181B, 222A, 322A) of the rod, through an interior of the rod, and then to a side surface (122B, 182D, 222B, 322B) of the rod located between ends of the rod. The opening is sized so that at least a single monofilament fiber optic cable is disposable therethrough. The system is adapted so that any number of rods may include a fiber optic cable disposed therein and so that the cable may be easily removed or inserted from the rod during use of the retractor.

Abstract: A surgical instrument comprises a first arm including a first closed loop engageable with a first spinal implant disposed with a first vertebral surface. A second arm is movable relative to the first arm and includes a second closed loop engageable with a second spinal implant disposed with a second vertebral surface. Surgical systems, constructs, implants and methods are disclosed.

Abstract: A surgical retractor comprises at least one blade including a first arm and a second arm spaced apart from the first arm. The at least one blade further including a member being disposed with the arms to support at least one surgical instrument in a selected orientation relative to a surgical site. Surgical systems, instruments, constructs, implants and methods are disclosed.

Abstract: A surgical retractor includes a part defining a longitudinal axis. A first radiolucent blade is connected with the part. A second radiolucent blade is connected with the part. The blades are independently translatable relative to the part. At least one of the blades includes spaced apart arms that are connected via a member. The member and the arms are relatively disposed in a configuration to guide at least one surgical instrument in a selected orientation relative to a surgical site. Surgical systems, instruments, constructs, implants and methods are disclosed.

Abstract: A lateral retractor system for forming a surgical pathway to a patient's intervertebral disc space includes a single dilator and a retractable dual-tapered-blade assembly. The single dilator may feature a narrow rectangular body for insertion at an insertion orientation parallel to the fibers of the patient's psoas muscle and at an approximate 45-degree angle to the patient's spine. The retractable dual-tapered-blade assembly consists of only two blade subassemblies, each having a blade bordered by adjustable wings, along with built-in lighting and video capabilities. The dual-tapered-blade assembly may be passed over the single dilator at the insertion orientation and rotated approximately 45-50 degrees from the insertion orientation to a final rotated orientation parallel to the intervertebral disc space before the two blade subassemblies are retracted away from one another to create the surgical pathway. Other embodiments are also disclosed.

Abstract: A lateral retractor system for forming a surgical pathway to a patient's intervertebral disc space includes a single dilator and a retractable dual-tapered-blade assembly. The single dilator may feature a narrow rectangular body for insertion at an insertion orientation parallel to the fibers of the patient's psoas muscle and at an approximate 45-degree angle to the patient's spine. The retractable dual-tapered-blade assembly consists of only two blade subassemblies, each having a blade bordered by adjustable wings, along with built-in lighting and video capabilities. The dual-tapered-blade assembly may be passed over the single dilator at the insertion orientation and rotated approximately 45-50 degrees from the insertion orientation to a final rotated orientation parallel to the intervertebral disc space before the two blade subassemblies are retracted away from one another to create the surgical pathway. Other embodiments are also disclosed.

Abstract: A system for securing a suture in boney tissue with an anchor. A handle member defines a central bore generally configured to receive a first suture. A driver is connected to the handle and defines a central bore in communication and co-axial with the central bore of the handle which is configured to receive the first. The handle is configured to rotate the driver, and the driver, in turn, rotate and seat the anchor. A retainer proximate the handle holds the first suture, upon a loop of the first suture grasping the second suture prior to the second suture being secured using the retainer. A collar adjacent the handle defines a central bore coaxial with the central bore of the handle configured to receive the driver, and another retainer is provided on the collar for holding the second suture.

Abstract: Suturing apparatuses can be configured to suture biological tissue, such as an anatomical valve. The suturing apparatuses can include a suturing device having an elongate shaft having a proximal end and a distal end, one or more tissue grasping arms, and a handle with actuators. The suturing device can further include at least two needles. One of the tissue grasping arms can have at least two suture mounts each loaded with a suture portion. The suture portions on the suture mounts can form a single suture strand. Methods for suturing bodily tissue may be performed with the suturing apparatuses. The tissue grasping arms can grasp tissue therebetween and at least two needles can be deployed toward the suture mounts, engage the suture portions, and be retracted through the tissue. A knot can be tied on the ends of the suture strand retrieved by the needles.

Abstract: An apparatus for repairing a heart valve can comprises a leaflet-plicating mechanism configured to plicate a leaflet of a heart valve and a helical needle comprising a plurality of coils. The needle can be configured to implant a suture to extend helically through plicated tissue of the heart valve. The leaflet-plicating mechanism can comprise first and second leaflet-capture arms, which can be configured to move toward and away from each other between an open position and closed position. The leaflet-capture arms can be configured to plicate the leaflet as the leaflet-capture arms are moved from the open position to the closed position.

Abstract: Suture locking clamps for securing prostheses such as heart valves or annuloplasty rings with sutures and without using knots improve the ease of implantation. The clamps have opposed clamp halves separated by a slot opening to one side and surrounded by a biasing member such as one or more C-clip springs. Sutures pass laterally into the slot which is held open by a retention member positioned between the clamp halves. The locking clamp slides along the sutures into position, the tension of the sutures is adjusted, and the retention member removed to allow the biasing member to clamp the sutures between the clamp halves. A delivery tool used to deliver and deploy the locking clamps contains a number of clamps within a delivery tube in a stack and bonded together for safety and a common retention member. The tool has a longitudinal channel on one side for entry of sutures.

Abstract: Suturing devices, systems, and methods used to suture biological structures. The suturing devices can be configured to place sutures into body tissue from one side of the tissue without requiring a component on an opposite side of the tissue and without requiring insertion of components into the body tissue beyond the needles and the suture.

Abstract: Apparatus and methods are provided for occluding blood vessels and other anatomical structures. Occlusion devices are delivered percutaneously and extraluminally through a small gauge needle and include expandable elements that are deployable on opposite sides of a target vessel to be occluded. When positioned about the vessel the elements are expanded and brought together to compress and occlude the vessel. Embodiments include those adapted for temporary as well as permanent use.

Abstract: A fastener delivery tool may comprise a sheath assembly having at least one position retention member proximate a distal end of the sheath assembly, and a handle assembly coupled to a proximal end of the sheath assembly, the handle assembly comprising a housing, a trigger handle, and an insert connector. An external force applied to the trigger handle may cause displacement of the trigger handle relative to a rest position, and displacement of the trigger handle from the rest position within a first displacement range may impart a first amount of force on the insert connector relative to the applied external force and displacement of the trigger handle from the rest position within a second displacement range may impart a second amount of force on the insert connector relative to the applied external force, with the first amount of force being greater than the second amount of force.