107 results about "Heart position" patented technology

Methods for evaluating motion of a tissue, such as of a cardiac location, e.g., heart wall, via electrical field tomography are provided. In the subject methods, an sensing element is stably associated with a tissue location of interest. Signals obtained from the sensing element are obtained to evaluate movement of the tissue location. Also provided are systems and devices for practicing the subject methods. In addition, innovative data displays and systems for producing the same are provided. The subject methods and devices find use in a variety of different applications, including cardiac resynchronization therapy.

This invention provides a heart positioning device, method and system for positioning, manipulating, holding, grasping, immobilizing and / or stabilizing a heart. The heart positioning device may include a suction head and a shaft with a means for remotely changing the position of the head from a first position axially aligned with the shaft to a second, unaligned position and a sleeve slideably positioned on the shaft and sized to receive the suction head in a compressed condition.

Methods for evaluating tissue motion of a tissue location, e.g., a cardiac location, via external continuous field tomography are provided. Aspects of the methods include generating at least one substantially linear continuous field gradient across the tissue location of interest, and using a resultant signal from a sensing element stably associated with the tissue location to evaluate motion of the tissue location. Also provided are systems, devices and related compositions for practicing the subject methods. The subject methods and devices find use in a variety of different applications, including cardiac resynchronization therapy.

Methods for evaluating motion of a tissue, such as of a cardiac location, e.g., heart wall, via continuous field tomography are provided. In the subject methods, a continuous field (e.g., an electrical, mechanical, electromechanical, or other field) sensing element is stably associated with the tissue location. A property of the applied continuous field is detected with the sensing element to evaluate movement of the tissue location. Also provided are systems, devices and related compositions for practicing the subject methods. The subject methods and devices find use in a variety of different applications, including cardiac resynchronization therapy.

Methods for evaluating motion of a tissue, such as of a cardiac location, e.g., heart wall, via continuous field tomography are provided. In the subject methods, a continuous field (e.g., an electrical, mechanical, electro-mechanical, or other field) sensing element is stably associated with the tissue location. A property of the applied continuous field is detected with the sensing element to evaluate movement of the tissue location. Also provided are systems, devices and related compositions for practicing the subject methods. The subject methods and devices find use in a variety of different applications, including cardiac resynchronization therapy.

A method of forming a lesion at a predetermined heart location is provided. An energy-delivering electrode is positioned proximal to the predetermined heart location; a return electrode is positioned in contact with cardiac tissue. An electrosurgical current, capable of delivering energy through the energy-delivering electrode to the predetermined heart location at a magnitude and for a duration effective to form a lesion is established. A system for treating atrial fibrillation by forming transmural lesions and a heart-positioning device including a return electrode are also provided. In one embodiment, one of the electrodes includes at least a portion that is selectively movable between a first, retracted position in which the electrode is adapted to be deployed through tissue, and a second, expanded position in which the electrode is adapted to be placed within a chamber of a heart.

Catheter navigation is coupled with ultrasound imaging to yield a context map showing the location on a heart of the ultrasonically imaged frame.

Methods for performing minimally invasive heart surgery include accessing a heart of a patient through a first incision on the left thorax of the patient, contacting the heart through the incision with a heart stabilizing device and / or a heart positioning device, introducing at least one coupling device through a second incision on the patient located apart from the first incision, coupling the coupling device with the heart stabilizing device or the heart positioning device, and performing a surgical procedure on the heart. Systems may include a retractor device, a heart stabilizing device, and a coupling device, for enhancing cardiac surgery. Any suitable heart surgery may be performed using methods, devices or systems of the present invention. In one embodiment, a CABG procedure is performed.

A method of monitoring a pregnant woman by identifying a moving organ in the woman and tracking or monitoring a movement of said organ using ultrasound. Optionally, the identifying is non-imaging. Optionally or alternatively, the moving organ is part of a fetus and a position of a head is optionally calculated form a heart position which is directed detected.

The invention discloses an integrally moulded sports underwear with non-steel ring cup, which comprises the following parts: integrally moulded cylinder underwear outer-cloth layer, non-steel ring cup, cylinder underwear inner-cloth layer corresponding to the structure of cylinder underwear outer-cloth layer, underwear bundle and hook coil, wherein the non-steel ring cup is stitched and fixed on the inner surface of front piece of outer-cloth layer symmetrically; the inner-cloth layer is stitched and fixed at inner surface of the front and back pieces of cylinder underwear outer-cloth layer at heart position and lateral specific position of two non-steel ring cups; the underwear bundle is set at the stitching connecting part of the lower end of the cylinder underwear outer-cloth layer and cylinder underwear inner-cloth layer; the hook coil is set on the underwear bundle. The invention is comfortable to wear with good air permeability to realize support action for breast, which is effective to side and elevate the breast to reinforce the wearing and matching property of sports underwear.

Methods for performing minimally invasive heart surgery include accessing a heart of a patient through a first incision on the left thorax of the patient, contacting the heart through the incision with a heart stabilizing device and / or a heart positioning device, introducing at least one coupling device through a second incision on the patient located apart from the first incision, coupling the coupling device with the heart stabilizing device or the heart positioning device, and performing a surgical procedure on the heart. Systems may include a retractor device, a heart stabilizing device, and a coupling device, for enhancing cardiac surgery. Any suitable heart surgery may be performed using methods, devices or systems of the present invention. In one embodiment, a CABG procedure is performed.

The invention discloses a wet sewage sludge combustion furnace which comprises a machine frame, wherein the machine frame is provided with a barrel type furnace body in an inclining manner, and a riding wheel device and a furnace body revolution driving device are arranged between the barrel type furnace body and the machine frame; the machine frame is fixedly provided with a sludge granulation spiral conveyer, and a discharge end of the sludge granulation spiral conveyer stretches into the upper part of the interior of the barrel type furnace body; and the upper end of the sludge granulation spiral conveyer is provided with a steam exhausting device and a granulation discharge hole. The wet sewage sludge combustion furnace provided by the invention can concentrate the sludge in a sludge transport process, the subarid sludge is extruded and granulated through the granulation discharge hole, the sludge grains are driven by the revolving barrel type furnace body to continually roll and dry so as to move to a hearth position, and turn into flammable grains at the heart position, and the combustion of the sludgy is realized. The wet sewage sludge combustion furnace provided by the invention has the advantages that the structure is compact, the sludge concentration drying efficiency is high, an energy source is not wasted, the sludge incineration is thorough, the technical bottle neck of sludge incineration is fully solved, and the wet sewage sludge combustion furnace has great economic and social benefits and popularization and application values.

Arrhythmic foci and other driver sites can be mapped using a multi-dimensional catheter. For instance, using a clique of three or more electrodes on the multi-dimensional catheter, an electroanatomical mapping system can identify a maximum bipolar voltage and an average unipolar voltage. The ratio of the average unipolar voltage to the maximum bipolar voltage can be interpreted as an indication of whether a cardiac location is an arrhythmic focus. Alternatively, an evaluation region can be defined about location in the patient's heart. The evaluation includes a plurality of rods, each associated with a respective E-field loop having a respective maximum and minimum amplitude bipole axes, with the rods being defined by the maximum amplitude bipole axes. For a sufficient number of rods within the evaluation region, a focus score for the evaluation region can be computed to reflect rod orientation consistency within the evaluation region.

The invention relates to a heart image processing method in a medical image. The method comprises the steps that the three-dimensional medical image set of a cross-section is input; the template imageset of the cross-section is acquired; the input three-dimensional medical image set is compared with the acquired template image set; a first medical image element, which demonstrates a heart start layer on the cross-section, of the three-dimensional medical image set and a second medical image element, which demonstrates a heart stop layer on the cross-section, of the three-dimensional image setare determined; and according to the relationship among a first template image element which demonstrates the heart start layer, a second template image element which demonstrates the heart stop layer, and a third template image element which demonstrates a heart marker layer in the template image set, a third medical image element which demonstrates the heart marker layer on the cross-section inthe three-dimensional medical image set is determined. According to the method provided by the invention, the heart marker layer can be accurately located, and the heart position can be accurately located.

Methods for performing minimally invasive heart surgery include accessing a heart of a patient through a first incision on the left thorax of the patient, contacting the heart through the incision with a heart stabilizing device and / or a heart positioning device, introducing at least one coupling device through a second incision on the patient located apart from the first incision, coupling the coupling device with the heart stabilizing device or the heart positioning device, and performing a surgical procedure on the heart. Systems may include a retractor device, a heart stabilizing device, and a coupling device, for enhancing cardiac surgery. Any suitable heart surgery may be performed using methods, devices or systems of the present invention. In one embodiment, a CABG procedure is performed.

A blood pressure measuring system includes: a blood pressure monitor which is configured to invasively measure a blood pressure value of a subject; a calibrating section which is configured to calibrate a measurement reference value of the blood pressure value; an imaging section which is configured to acquire an image of the subject; a heart position identifying section which is configured to identify a height position of a heart of the subject based on the image; and a determining section which, based on the identified height position of the heart, is configured to determine whether a calibration of the measurement reference value is necessary or not.

Systems and methods are provided for mapping myocardial tissue architecture based on diffusion tensor imaging (DTI). A set of eigenvectors is derived from diffusion tensor data, where each eigenvector describes the diffusion of spins along one of the Cartesian directions. A radial coordinate axis and a circumferential plane are determined based on anatomical information of the subject, such as from an image depicting the epicardial surface of the subject's heart. A longitudinal coordinate axis and a circumferential coordinate axis are determined based on the radial coordinate axis and circumferential plane. A fiber architecture matrix (FAM) is then computed for locations in the subject's heart based on projecting the set of eigenvectors onto a local coordinate system defined by the circumferential, radial, and longitudinal axes, Maps that represent myocardial tissue architecture can then be generated using the FAM for locations within the subject's heart.

Multiple electrode contacts make electrical connections to the anterior and / or posterior chest for multivariate characterization of the electrical activation of the heart. A central processing unit derives synthetic composite electrographic signals as well as flag signals for specific purposes. A preferred embodiment uses this system to trigger or gate magnetic resonance imaging, eliminating or reducing problems from small or inverted R-waves, lead detachment, noise, flow signal, gradient changes, and rhythm changes, more reliably flagging the onset of electrical activation of the ventricles. Additional derived data are ST-segment shifts, filling times, and respiratory cycle. Filling times may be used for greatly improved imaging in the presence of rhythm disturbances, such as atrial fibrillation. Respiratory cycle may be used as a respiratory trigger to control for the effects of breathing on the heart position and image quality.

The invention relates to a method and a device for cardiac image reconstruction, and computer equipment. The method includes: using a plurality of preview images as input, obtaining a chest contour image according to the plurality of preview images and a maximum density projection; calculating a boundary position of the chest contour image according to the chest contour image; according to the boundary position of chest contour image, calculating to obtain a reconstruction center; performing multi-phase reconstruction according to the reconstruction center and a preset reconstruction field ofview, to obtain a cardiac image. By firstly selecting the position of a heart, the method performs multi-phase image reconstruction according to the heart position, and reduces the amount of input data, and further reduces time of data input, and the operation efficiency is improved.

A three-dimensional support frame for the linkage section (also known as “heart”) of bra cups for low-heart underwear is disclosed. The support frame comprises a body having a U-shaped support frame. The body of the support frame is made of a wide flat wire; wire surfaces of two vertical portions of the body of the support frame being correspondingly twisted outwardly at an angle with respect to a vertical axis, forming an anticlockwise angle of 15°-85° with respect to a horizontal plane, and the twists starts at a position of the maximum radius of semicircular lower portion of the U shape. The twisted wire surfaces of the two vertical portions are of an arc-shaped structure which is curved outwardly, an outwardly curved portion with a maximum curvature being offset in a distance of 5 mm-50 mm with respect to midpoint of a bottom portion of the U-shaped support frame.

The invention provides a physiological parameter monitoring garment and a method for physiological parameter monitoring by using the physiological parameter monitoring garment. The physiological parameter monitoring garment integrates different functional modules to achieve synchronous real-time monitoring of the human electrocardiogram, heart rate, blood oxygen, blood pressure, position, temperature and the like; through a heart position sensor and an auxiliary position sensor, the measurement error caused by the height difference of blood pressure measurement points is corrected, the methodis simple, and the result is accurate; a temperature control module provides a heat preservation function, reduces or even eliminates interference of a physiological response of the human body to thetemperature with an electrocardiogram waveform and improves the monitoring accuracy. Through the continuous energy supply of a power source and the wearing comfort of the physiological parameter monitoring garment, daily and long-term monitoring can be performed, abnormalities can be found at any time, and the use is convenient. Finally, a main control box and a blood oxygen and blood pressure sensing module can be detachably connected to the physiological parameter monitoring garment, and cleaning is facilitated.

A method of monitoring a pregnant woman by identifying a moving organ in the woman and tracking or monitoring a movement of said organ using ultrasound. Optionally, the identifying is non-imaging. Optionally or alternatively, the moving organ is part of a fetus and a position of a head is optionally calculated form a heart position which is directed detected.

Provided are an ultrasound diagnosis apparatus for determining abnormality of a fetal heart, and an operating method thereof. The ultrasound diagnosis apparatus detects the position of a heart in an ultrasound image of a heart of a fetus and determines abnormality of the heart of the fetus based on the detected position of the heart.

The invention discloses an ultrasonic beam synthesis system and method based on a wearable flexible ultrasonic transducer. The system comprises a flexible wearable multi-array-element imaging transducer, wherein the flexible wearable multi-array-element imaging transducer is arranged at a body surface chest wall position corresponding to a heart of a patient when in use; the flexible wearable multi-array-element imaging transducer receives signals sent by an ultrasonic transmitter of an ultrasonic system; each array element of the flexible wearable multi-array-element imaging transducer carries out time delay compensation on the received signals and then transmits the signals to a heart position of the patient; each array element of the flexible wearable multi-array-element imaging transducer receives feedback signals, and each array element carries out time delay conversion on the feedback signals and then sends the feedback signals to an ultrasonic receiver of the ultrasonic system;and the ultrasonic system performs beam synthesis on signals of each array element to obtain a three-dimensional ultrasonic image of the heart of the patient.

The invention discloses a non-contact multi-lead electrocardiogram monitoring system based on array capacitor electrodes. The system comprises a plurality of capacitor electrodes. The plurality of capacitor electrodes are arranged on a seat backrest. Center of two adjacent capacitor electrodes are connected, so lines of centers of the plurality of capacitor electrodes form a polygon. A midpoint position of the polygon is corresponding to a heart position of a human body. The seat backrest is connected with a cushion. The cushion is fixedly provided with a reference electrode. The multi-lead electrocardiogram monitoring system is simple in structure, and can be directly used without any preparation in advance.

A method for generation of an image exposure of the heart of an examination subject with an imaging medical examination apparatus in particular a magnetic resonance apparatus, the image exposure requiring preparation includes the steps of: preparation of the heart in a heart position that is relevant for the image acquisition and determination of the associated heart position, determination of at least one current heart position in the further course of the heart cycle, comparison of the determined current heart position with the heart position relevant for the image acquisition, and given correlation of the current heart position and the heart position relevant for the image acquisition, starting the image acquisition through a control device of the imaging medical examination apparatus.

The invention discloses a molded sapphire crystal growth method and an apparatus thereof. The apparatus comprises a crystal growth furnace, a heater, a crucible, an internal crucible and a weighing system; the internal crucible is arranged in the crucible, and a fine tube is arranged at the upper portion of the internal crucible, has a capillary effect and is used for obtaining a small interface higher than a free liquid level in order to realize seeding; the internal crucible is put on a sapphire material to guarantee the coaxiality of the fine tube on the internal crucible and seed crystals; the position of the fine tube is a cold heart position, and crystals begin to grow with the decrease of the temperature; and the crystal growth rate is accurately controlled by the weighing system, crystals are pulled after a melt in the internal crucible is almost crystallized, the melt at the upper portion of the internal crucible falls to the bottom of the crucible, and crystallization is continuously carried out. Cylinder-like sapphire crystals can be prepared through the method and the apparatus; grown crystals have the advantages of excellent quality, small stress, low dislocation density, and good crystal perfection and optic uniformity; and the method and the apparatus have the advantages of increase of the utilization rate of the sapphire material, processing program simplification and easy industrialization.

A defibrillation system may include a cardiac arrest detector detecting whether cardiac arrest of a passenger has occurred in a state of taking a seat of a self-driving vehicle and fastening a seatbelt of the vehicle; a passenger posture detection device detecting a posture of the passenger; a seat driving device changing the posture of the passenger into another posture in which the passenger lies down based on a detection signal of the passenger posture detection device when the cardiac arrest of the passenger occurs; a heart position detector configured to search for a position of a heart of the passenger; a defibrillation robot to perform a CPR method or a method using an AED on the heart of the passenger; and a controller controlling operation of the seat driving device, the heart position detector, and the defibrillation robot based on detection signals of the cardiac arrest detector and the passenger posture detection device.

The invention discloses a heart multi-plane reconstruction method. The method includes the following steps of firstly, inputting a three-dimensional image of the heart, and initially positioning the area where the heart is located; secondly, conducting detection to determine the key feature points, in the direction of a long axis, of the heart through a heart position detector according to the area where the heart is located, and obtaining the long axis of a traditional heart viewing angle according to the key feature points; thirdly, continuing detection to determine key feature points, in the direction of a first short axis, of the heart, and obtaining the first short axis of the traditional heart viewing angle according to the key feature points; fourthly, enabling the direction of the long axis and the direction of the first short axis to be orthogonal so as to obtain the direction of a second short axis; fifthly, converting the three-dimensional image of the heart into an image based on the long axis, the first short axis and the second short axis of the traditional heart viewing angle. According to the heart multi-plane reconstruction method, automatic heart multi-plane reconstruction is achieved by detecting the positions of the key feature points of the heart and determining the directions of the long axis and the short axes of the heart, the calculation amount is greatly reduced, and reconstruction time is greatly shortened.

The invention discloses a low-heart position underwear heart position supporting frame, and belongs to cup supporting components of underwear such as bra, tights and the like. The supporting frame is characterized in that: a supporting frame body is a U-shaped supporting frame; a blank structure of the supporting frame body is a wide flat wire; both wire planes of two vertical parts of the supporting frame body correspondingly form torsion angles with a vertical axis; a starting position of torsion is zero boundary points of a U-shaped arc and the vertical parts; an arc part for forming the Ushape is a plane, and the vertical parts form the torsion angles with the arch part plane to form the U-shaped supporting frame; and an included angle between a torsion wire plane and the horizontal plane is 0 to 85 degrees. The supporting frame has a simple structure; when the supporting frame is embedded into a low-heart position bra or a heart position of the bra, the carrying function of breasts can be realized well; and the height of the heart position can be adjusted along with the style design, three-dimensional shape of a cleavage part can be shown, and comfort for wearing can also beguaranteed.