38 results about "Cardiac implanted" patented technology

Systems and methods for preparing and loading a collapsible cardiac implant into a delivery system is provided, and includes a stent crimper with an alignment mechanism and a transfer tube to reduce the risk of damage to the delivery system during loading.

Systems and methods for fully automated anatomical analysis of an anatomical structure are provided to facilitate pre-operative planning. The computerized method may include obtaining a plurality of images, e.g., MSCT images, of patient-specific cardiovascular anatomy, and analyzing the MSCT images with a trained artificial intelligence module to identify one or more anatomical landmarks and to construct a virtual three-dimensional model of the anatomical structure. For example, the trained artificial intelligence module may execute segmentation, point detection, curve detection, or plane detection deep learning modules, independently or in combination, to identify the anatomical landmarks. The method further may include deriving anatomical measurements of the one or more identified anatomical landmarks, and displaying the virtual three-dimensional model alongside the anatomical measurements of the one or more identified anatomical landmarks.

Aspects of the disclosure include delivery devices for transcatheter delivery of a cardiac implant. Delivery devices can include a handle assembly as well as a piston mount connected to the handle assembly and having a distal portion terminating at a nose cap. The distal portion includes a stop extending radially from and fixed to the distal portion. The delivery device further includes a capsule assembly including a biasing element for selectively sheathing the implant and a plurality of retraction members secured about a distal end of the biasing element to control deployment of the implant. In various examples, the biasing element is a helical compression spring and the implant is a prosthetic tricuspid heart valve. Methods of loading a delivery device and delivering an implant are also disclosed.

A method for determining electrode-tissue contact for a multi-electrode catheter implant of a Pulsed Field Ablation system, the method including: selecting one of the multiple electrodes as a test electrode; applying an electrical pulse to said test electrode; receiving an electrical signal on at least one of the other electrodes of the multiple of electrodes; calculating an impedance value based on the received electrical signal; and outputting an indication of electrode-tissue contact for the test electrode based on the calculated impedance value.

The invention relates to determining a model of a cardiac implant deployed in a cardiac region of a patient. A database including a plurality of different records is provided, each record including at least data representative of an image of a cardiac region and an associated model of the cardiac implant deployed in said cardiac region. A patient-specific image of the cardiac region for which the model of the cardiac implant deployed in said cardiac region is to be determined, is received. An approximation of the patient-specific image of the cardiac region is calculated based on a weighted combination of images of the cardiac region in a plurality of records. The model of the cardiac implant deployed in the cardiac region associated to the patient-specific image of said cardiac region is determined based on weighted combination of models of the cardiac implant associated to the images of the cardiac region in the plurality of records used for approximating said patient-specific image of the cardiac region.

Apparatus and methods of determining a cardiac implant size and methods and system for transesophageal echocardiogram guided implantation of left atrial appendage closure device. The apparatus includes an ultrasonic imaging device, at least a processor, and a memory communicatively connected to the at least a processor, wherein the memory contains instructions configuring the at least a processor to using the ultrasonic imaging device collect a plurality of ultrasonic images using a 3D cardiac model generation machine learning model trained on a training dataset including example ultrasonic images correlated with example 3D cardiac models. The processor is further configured to generate a 3D cardiac model based on the plurality of ultrasonic images, generate at least a cardiac measurement based on the 3D cardiac model, determine a cardiac implant size based on the at least a cardiac measurement, and using a display, display to a user the cardiac implant size.

A system for delivery of cardiac implants includes a catheter having a handle assembly including a cable control assembly. The handle assembly further includes a tubular body assembly extending distally from the handle assembly and deflectable by operation of the cable control assembly. The system also includes a robot having a linear displacement platform and a carriage coupled to the linear displacement platform. The carriage includes a drive motor assembly and is at least one of linearly displaceable along the linear displacement platform and rotatable relative to the linear displacement platform. The handle assembly is coupled to the carriage such that the cable control assembly interfaces with the drive motor assembly of the carriage to facilitate operation of the cable control assembly by the robot.

A medical device for improving a heart valve of a patient includes a coaptation member and a pair of blades disposed on two sides of the coaptation member in thickness direction thereof. The coaptation member includes: an extension portion that extends in a length direction, and an end of the extension portion is connected to the pair of blades; and an acting portion that is connected to the other end of the extension portion and has a width greater than a width of the extension portion. According to the medical device provided by the present disclosure, the coaptation member has the acting portion having a relative width, and the acting portion is provided at an end of the extension portion, so that regurgitation in a patient with a larger heart is effectively improved by using merely a single medical device.

Systems and methods for preparing and loading a collapsible cardiac implant into a delivery system is provided, and includes a stent crimper with an alignment mechanism and a transfer tube to reduce the risk of damage to the delivery system during loading.

Systems, devices, and methods for tracking and determining the motion of a cardiac implant is disclosed. The motion of the implant is determined by transmitting acoustic energy to a tissue location using an acoustic controller-transmitter comprising an array of acoustic transducers; wherein the implant is configured to convert the transmitted acoustic energy to electrical energy; and the tracking is achieved by determining the electrical energy delivered to the tissue throughout one or more cardiac cycles in order to create a motion profile of the cardiac implant.

The invention provides a heart implant, a delivery assembly and a heart implant system.The heart implant comprises a valve prosthesis and an anchoring nail, the anchoring nail can nail the valve prosthesis on a native tissue of an atrioventricular valve, on one hand, anchoring of the valve prosthesis in the heart is achieved, the problems of falling, shifting, twisting and the like of the valve prosthesis are avoided, and the heart implant delivery efficiency is improved; on the other hand, the compression of the valve prosthesis on the native tissue of the heart is greatly reduced so as to solve a series of problems such as ventricular structure remodeling caused by the valve prosthesis anchored through radial force, and on the other hand, the fitting gap between the valve prosthesis and the native tissue can be reduced, the sealing performance of the perivalvular is improved, the perivalvular leakage is reduced, and the heart safety is improved. On the other hand, when the valve prosthesis is nailed on the valve ring of the atrioventricular valve through the anchoring nail, the valve prosthesis is allowed to have a small axial height, and therefore the height of the valve prosthesis below the valve is reduced, and blocking of the valve prosthesis to blood entering the ventricular outflow tract is reduced.

Sensor integration in a cardiac implant device. The sensor retention structure comprises a sensor support post and means for securing the sensor device to the sensor support post. The sensor support arm may be configured to have an at least partially cylindrical sensor device disposed thereon and associated with one or more sensor holding fingers protruding from the sensor support arm and / or a cage structure configured to be secured to the sensor device.

The application relates to the field of medical devices, in particular to a heart implant, which comprises an anti-reflux prosthesis, a fixing member and a limiting member, the anti-reflux prosthesis is anchored on atrial tissue through the fixing member, one end of the limiting member is connected with the anti-reflux prosthesis, and the other end of the limiting member is fixed on apical tissue, the anti-reflux prosthesis comprises a closing aid and a barrier, the distal end of the barrier is fixed on the middle region of the closing aid, the proximal end of the barrier is connected with the limiting member, and the proximal end part of the closing aid is free; the application not only can increase the coaptation area with adjacent native leaflets to achieve ideal repair effect, but also can avoid the closing aid from floating into the atrium, and has good clinical significance.

An implant is provided for use at a native cardiac valve of a subject. The implant has a central axis and a frame that, in an implanted configuration, defines a circumferential ring of spiked cells around the central axis. Each spiked cell has four corners consisting of an inner apex, two lateral corners connected, at respective intermediate junctions, to lateral corners of adjacent cells, and an outer apex oriented radially away from the central axis. The spiked cells are defined by struts that carry spikes. The intermediate junctions provide circumferential articulation such that each spiked cell bends with respect to adjacent cells to move its outer apex toward and away from the central axis independently of outer apices of the adjacent cells in a manner that maintains the spikes of that cell in tissue-gripping contact with tissue of the valve. Other embodiments are also described.

A cardiac implant includes a frame forming an inner lumen and sized for delivery into a blood vessel and a covering extending at least partially along the frame to at least partially restrict lateral blood flow from one or more branching blood vessels into the blood vessel. The covering forms one or more folds at or near a distal end of the frame.

Systems and methods for preparing and loading a collapsible cardiac implant into a delivery system is provided, and includes a stent crimper with an alignment mechanism and a transfer tube to reduce the risk of damage to the delivery system during loading.

The present disclosure relates to delivery systems for delivering and deploying interventional devices to a targeted area within a body, such as delivering a replacement heart valve to a targeted heart valve. A delivery device includes a steerable catheter and a replacement valve delivery system positioned within the steerable catheter and configured to be translatable within the steerable catheter. The steerable catheter includes one or more control wires running from a distal end of the catheter to a handle at the proximal end of the catheter. Each control wire is coupled to a control of the handle such that manipulation of the control provides deflection and control of the steerable catheter.

Aspects of the disclosure provide a cardiac implant delivery device including catheter having a distal end and a telescoping capsule assembly secured to the distal end. The capsule assembly can include a distal capsule and a proximal capsule. Other embodiments include additional capsules positioned between the proximal and distal capsules. The capsule assembly has a loaded arrangement and a deployed arrangement. As the capsule assembly transitions from the loaded arrangement fully covering the implant to the deployed arrangement, the proximal capsule and any intermediate capsules move distally in the direction of the distal capsule to unsheathe the implant. In various embodiments, the cardiac implant is a prosthetic heart valve. Methods of delivering a cardiac implant are also disclosed. Various methods include methods of delivering a replacement tricuspid heart valve.

The present invention relates to a cardiac implant and an implantation system including the cardiac implant. The cardiac implant is configured to be advanced along a guidewire having a distal end that is annular or substantially annular, and includes a main body, a first connecting portion, and a second connecting portion. The main body includes a straight structure and a curved structure, and the main body includes a first end and a second end that are axially opposite. The first connecting portion is connected to the first end of the main body. The second connecting portion is connected to the second end of the main body. During advancement, the main body is transformed from a straight structure to a curved structure, and various parts of the main body are capable of transmitting axial force and movement to avoid axial stacking. The second connecting portion and the first connecting portion can be connected and locked to each other, thereby forming a ring together with the main body in the curved structure. The cardiac implant of the present invention can be formed into a ring by simply pushing, and no stacking will occur during the pushing process, which effectively reduces the difficulty of forming a ring for the cardiac implant.

The present disclosure relates to delivery systems for delivering and deploying interventional devices to a targeted area within a body, such as delivering a replacement heart valve to a targeted heart valve. A delivery device includes a steerable catheter and a replacement valve delivery system positioned within the steerable catheter and configured to be translatable within the steerable catheter. The steerable catheter includes one or more control wires running from a distal end of the catheter to a handle at the proximal end of the catheter. Each control wire is coupled to a control of the handle such that manipulation of the control provides deflection and control of the steerable catheter.

A sensor implant device includes a shunt structure comprising a flow path conduit and a plurality of arms configured to secure the shunt structure to a tissue wall, and a pressure sensor device attached to one of the plurality of arms of the shunt structure. The pressure sensor device comprises one or more sensor elements, an antenna, control circuitry electrically coupled to the one or more sensor elements and the antenna, and a housing that houses the control circuitry.

A knotless suture fastener installation system for securing medical devices such as cardiac implants. The knotless suture fasteners may be spring-biased so as to grip onto sutures passed therethrough. The system includes a fastener deployment tool with a proximal handle and a distal shaft to which a fastener cartridge attaches. A plurality of disposable cartridges are sequentially attached to the end of the deployment tool and used to secure the medical implant one fastener at a time. The deployment tool may also cut the sutures being fastened.

The device (300) for use in total cavopulmonary connection comprises a hollow body (302), embedded within the cavity of which is a flow separator (308). The hollow body (302) comprises a first end (304) that is configured to receive blood from inferior vena cava (IVC) and a second end (306) configured to be connected to pulmonary artery. Further, the flow separator (308) aids in guiding blood from IVC and superior vena cava (SVC) to right pulmonary artery and left pulmonary artery. The flow separator (308) comprises an inferior end (402) and a superior end (404). The inferior end (402) is located between the first end (304) and the second end (306) of the hollow body (302). The flow separator (308) is dimensioned to have the superior end (404) enter SVC when the second end (306) is connected to the pulmonary artery.

The application discloses an operating handle of a heart implant implanting instrument and an interlocking disengaging mechanism thereof. The operating handle comprises a stroke seat, a middle tube connecting seat, an inner tube connecting assembly, and the interlocking disengaging mechanism is arranged between the middle tube connecting seat and the inner tube connecting assembly. The middle tube connecting seat has a connecting portion, the inner tube connecting assembly comprises an inner connecting sleeve and an inner tube connecting seat, the rear end of the inner connecting sleeve is fixedly connected with the inner tube connecting seat, an inner tube is fixed on the inner tube connecting seat, and the inner connecting sleeve has a connecting groove matched with the connecting portion. The interlocking disengaging mechanism has a locking state and a disengaging state. In the locking state, the connecting portion is inserted into the connecting groove to prevent the inner connecting sleeve from moving relative to the middle tube connecting seat. In the disengaging state, the connecting portion is separated from the connecting groove to allow the inner tube connecting seat to move backward relative to the middle tube connecting seat. The application can effectively reduce misoperation and avoid disengaging the middle tube connecting seat and the inner tube connecting assembly before the implant is not closed or locked.

An implant device (2) has an outer surface (4) configured to be brought in contact with human or animal tissue. The outer surface (4) of the implant device (2) is equipped with one or more sensors (9), each of the one or more sensors (9) comprising an array (10) of at least two electrodes (11). Each of the electrodes (11) within the one or more sensors (9) is configured to emit and receive an electrical signal so as pairs of electrodes (11) measure a bioimpedance signal upon application of an electrical current or voltage. The implant device (2) further comprises a connecting hub (14) which is electrically connected to the at least two electrodes (11) and is electrically connectable to a circuit configured to convert the bioimpedance signal into an information on the contact between the implant device (2) and the human or animal tissue.

A system for delivery of cardiac implants includes a catheter having a handle assembly including a cable control assembly. The handle assembly further includes a tubular body assembly extending distally from the handle assembly and deflectable by operation of the cable control assembly. The system also includes a robot having a linear displacement platform and a carriage coupled to the linear displacement platform. The carriage includes a drive motor assembly and is at least one of linearly displaceable along the linear displacement platform and rotatable relative to the linear displacement platform. The handle assembly is coupled to the carriage such that the cable control assembly interfaces with the drive motor assembly of the carriage to facilitate operation of the cable control assembly by the robot.

Systems, devices, and methods for tracking and determining the motion of a cardiac implant is disclosed. The motion of the implant is determined by transmitting acoustic energy to a tissue location using an acoustic controller-transmitter comprising an array of acoustic transducers; wherein the implant is configured to convert the transmitted acoustic energy to electrical energy; and the tracking is achieved by determining the electrical energy delivered to the tissue throughout one or more cardiac cycles in order to create a motion profile of the cardiac implant.

The invention is a cardiac implant, and associated methods therefore, configured to repair and / or replace a native heart valve, and having a support frame configured to be reshaped into an expanded / changed form in order to receive and / or support an expandable prosthetic heart valve therein. The implant may be configured to have a generally rigid and / or expansion-resistant configuration when initially implanted to replace / repair a native valve (or other prosthetic heart valve), but to assume a generally non-rigid and / or expanded / expandable form when subjected to an outward force such as that provided by a dilation balloon. The implant may be configured to have a generally D-shaped configuration when initially implanted, but to assume a generally circular form when subjected to an outward force such as that provided by a dilation balloon.

Described herein is an apparatus and method for determining a cardiac implant size. In some embodiments, an apparatus may include an ultrasonic imaging device, at least a processor, and a memory communicatively connected to the at least a processor, wherein the memory contains instructions configuring the at least a processor to, using the ultrasonic imaging device, collect a plurality of ultrasonic images, using a 3D cardiac model generation machine learning model trained on a training dataset comprising example ultrasonic images correlated with example 3D cardiac models, generate a 3D cardiac model based on the plurality of ultrasonic images, generate at least a cardiac measurement based on the 3D cardiac model, determine a cardiac implant size based on the at least a cardiac measurement, and display to a user the cardiac implant size.

Systems and methods for fully automated anatomical analysis of an anatomical structure are provided to facilitate pre-operative planning. The computerized method may include obtaining a plurality of images, e.g., MSCT images, of patient-specific cardiovascular anatomy, and analyzing the MSCT images with a trained artificial intelligence module to identify one or more anatomical landmarks and to construct a virtual three-dimensional model of the anatomical structure. For example, the trained artificial intelligence module may execute segmentation, point detection, curve detection, or plane detection deep learning modules, independently or in combination, to identify the anatomical landmarks. The method further may include deriving anatomical measurements of the one or more identified anatomical landmarks, and displaying the virtual three-dimensional model alongside the anatomical measurements of the one or more identified anatomical landmarks.