21 results about "Cardiac Catheters" patented technology

Techniques for catheter path planning for a cardiac ablation procedure to treat an arrhythmia of a patient are provided. One technique receives data that includes a three-dimensional (3D) image of the heart of the patient and an electrocardiogram collected from the patient and that includes a catheter specification. The technique applies a path planning system to the 3D image, a location (e.g., source location or target location), and the catheter specification to generate a candidate path from a starting point to a target point that is based on the location. The technique outputs an indication of the candidate path to help inform the ablation procedure to treat the arrhythmia of the patient.

The invention discloses a pulmonary arterial hypertension risk prediction model based on night hypoxia and cardiac ultrasound indexes and a construction method thereof, and the method comprises the steps: collecting cardiac ultrasound examination indexes, right cardiac catheter examination data and night sleep respiration monitoring data of a patient with chronic thromboembolic pulmonary diseases; the method comprises the following steps: according to hemodynamic data measured by right heart catheter examination, grouping into a CTEPD accompanied PH (hereinafter referred to as CTEPH) group and a CTEPD non-accompanied PH group, and carrying out statistical analysis on all collected data; risk factors related to the CTEPH are screened out; and screening CTEPH prediction model variables and constructing a pulmonary arterial hypertension risk prediction model. According to the method, the pulmonary arterial hypertension risk prediction model based on the night hypoxia and cardiac ultrasound indexes is constructed, the CTEPH risk is diagnosed only by combining the hypoxia indexes with the cardiac ultrasound indexes, non-invasive risk assessment is achieved, no harm is caused to patients, operation is easy and convenient, the model performance is good, and the method can be popularized and popularized in hospitals at all levels in China and is wide in applicability.

Systems and methods of automatically controlling, on a graphical user interface used by a physician, display views of an anatomic structure of a patient. Such systems and methods of automatically controlling display views of an anatomic structure of a patient can facilitate visualizing a position of a medical device relative to the anatomic structure during a medical procedure directed to the anatomic structure. In certain implementations, the systems and methods of the present disclosure provide automatic display views of a cardiac catheter relative to a three-dimensional model of a patient's heart cavity during a medical procedure such as cardiac ablation.

The invention discloses a non-invasive pulmonary arterial hypertension hemodynamic monitoring method based on machine learning, and belongs to the technical field of pulmonary arterial hypertension hemodynamic monitoring. The non-invasive pulmonary arterial hypertension hemodynamic monitoring method based on machine learning comprises the following steps: collecting BCG signal data through static data collection equipment; eCG signal data are acquired through dynamic data acquisition equipment; pPG signal data are collected through a photoelectric finger clip; static feature extraction is carried out on static data composed of the BCG signal data and the PPG signal data, and dynamic feature extraction is carried out on dynamic data composed of the ECG signal data and the PPG signal data; and inputting the static characteristics and the dynamic characteristics into a regression model, and training the regression model by taking the hemodynamic parameter CO measured by the right cardiac catheter at the same time as a target to obtain a cardiac displacement prediction regression model. By adopting the non-invasive pulmonary arterial hypertension hemodynamics monitoring method based on machine learning, the problems that an existing pulmonary arterial hypertension hemodynamics monitoring method is complex in operation and cannot meet daily rehabilitation training monitoring use are solved, and the prediction precision is improved.

The invention relates to a cardiac catheter pump comprising: a preferably flexible cannula (1) having an inlet region (2) at the distal end thereof and a pump housing (3) at the proximal end thereof, which pump housing has an impeller (4) and an outlet region (5), to which blood can be conveyed, in particular by rotation of the impeller (4), from the inlet region (2); and a drive (6) which is connected to the pump housing (3) and by means of which the impeller (4) in the pump housing (3) can be rotated, the drive (6) comprising a series arrangement of a plurality of drive units (6a, 6b, 6c, 6d) which are flexibly connected to one another.

A cardiac catheterization image recognition and evaluation method is disclosed. The first deep learning algorithm is used to conduct an object recognition process on the cardiac catheterization image to obtain the vessel object image. The image processing process is conducted to the cardiac catheterization image to obtain the vessel location image. The vessel object image and the vessel location image are combined to obtain the vessel contour image. The vessel type judging process is conducted to the vessel contour image to determine the type of vessel in the cardiac catheterization image. The second deep learning algorithm is used on the vessel contour image to detect the vessel occlusion location and to judge the vessel occlusion rate. Based on the type of vessel and the vessel occlusion rate at the vessel occlusion location, the cardiac catheterization image is evaluated to obtain the SYNTAX Score.

Systems and methods of automatically controlling, on a graphical user interface used by a physician, display views of an anatomic structure of a patient. Such systems and methods of automatically controlling display views of an anatomic structure of a patient can facilitate visualizing a position of a medical device relative to the anatomic structure during a medical procedure directed to the anatomic structure. In certain implementations, the systems and methods of the present disclosure provide automatic display views of a cardiac catheter relative to a three-dimensional model of a patient's heart cavity during a medical procedure such as cardiac ablation.

Aspects of the instant disclosure relate to various types of medical catheters with a deformable body that deflect in response to a force exerted on the catheter tip. A magnetic field sensor and permanent magnet respectively coupled on either side of the deformable body are used to determine a change in a magnetic field associated with the deflection of the catheter tip. Controller circuitry may receive a signal from the magnetic field sensor indicative of the deflection of the deformable body and associate the signal with the force exerted.

A computer-implemented method and system are described that identify one or more regions of the heart responsible for supporting or initiating an abnormal heart rhythm. Electrogram data recorded from multiple electrodes on a multipolar cardiac catheter is used, the electrogram data being obtained from a corresponding series of sensing locations on the heart during a recording time period. The method includes the steps of: identifying, based on the electrogram, a region within a chamber of the heart having an electrical activation sequence that characterizes the region as a potential driver of an abnormal heart rhythm; for each sensing location at or substantially surrounding the region, determining an earliest activation electrode site based on the predominant activation; for each determined earliest activation electrode site: calculating a value for each of a plurality of modifiers associated with the electrode site, the modifier being determined based on the electrogram data for the site, a tissue feature of the site, or an anatomical feature of the site; determining a ranking factor calculated based on the plurality of modifiers; ranking each of the earliest activation electrode sites based on the ranking factor; and outputting data identifying the region, the data varying the significance of each of the determined earliest activation electrode sites depending on the ranking.

A heart catheter for removing at least one leaflet of a defective heart valve includes a catheter sheath having a proximal end, a distal end, and an interior passageway extending between the distal end and the proximal end. A catheter wire is insertable into the passageway of the catheter sheath, with the catheter wire having a proximal end and a distal end. A first basket is coupled to the distal end of the catheter wire and is sized and configured for being received interiorly of a heart valve. A second basket is coupled to the distal end of the catheter wire and is disposed distally (more aortic) than the first basket. The second basket is sized and configured to interiorly receive one or more valve leaflets and the first basket.

The patient trousers comprise a trousers body, two observation openings are formed in the front side of the trousers body, a cloth blocking piece is fixedly connected to the observation openings, a connecting assembly is connected to the front side of the cloth blocking piece, and two trouser legs are detachably connected to the bottom of the trousers body. The cloth blocking pieces are arranged on the front side and the crotch of the trousers, the whole view of the wound can be observed only by unzipping the connecting zipper, so that the privacy of a patient is protected, the probability of wound bleeding caused by movement of limbs of the patient can be reduced, the situation of the wound can be conveniently, rapidly and efficiently observed for a doctor and the patient, and the patient can conveniently, rapidly and efficiently observe the situation of the wound. And accidents are avoided.

The invention discloses a compression nursing auxiliary device for a catheter intervention operation in the department of cardiology, and relates to the technical field of medical auxiliary instruments. Comprising a pressing body and an I-shaped pressing piece. The compression body is hollow, the bottom of the compression body is open, and transverse partition plates are arranged in the compression body for layering. A display screen, an air pressure display meter, a pressure regulating valve and a regulating button are arranged at the top of the compression main body; the pressure regulating valve is used for regulating the pressure in the air bag; an integrated circuit board, a storage battery and a micro air pump are mounted on the upper layer in the compression main body, and an electric telescopic device is arranged on the lower layer; the output end of the electric telescopic device is connected with the top of the I-shaped pressing piece; the I-shaped pressing piece is installed on the sliding rod through the fixing penetrating hole. The compression nursing auxiliary device is convenient for medical staff to operate, the compression strength can be accurately adjusted according to the actual requirements of a patient, the moderate compression strength is ensured, the compression is prevented from being too tight or too loose, and the compression hemostasis effect is improved.

To detect contact force of a cardiac catheter.SOLUTION: A system of the present invention includes a medical probe and a processor. The medical probe includes a shaft to be inserted into the cavity of an organ of a patient, an expandable assembly having elasticity, which is attached to the distal end of the shaft, a position sensing element attached to the distal end of the shaft, and at least one distal position sensing element on the distal end of the expandable assembly. The processor senses each relative position of the at least one distal position sensing element and a proximal position sensing element, determines the deflection of the expandable assembly on the basis of the relative position, associates the deflection with contact force applied to the expandable assembly, and displays the contact force on a display.SELECTED DRAWING: Figure 1

A medical tool testing apparatus comprising a vessel. The vessel comprises a scaffold formed from biomaterial, live cardiac tissue, generated from cardiac cells, proliferating on the scaffold, the live cardiac tissue configured to generate electrical activity. The vessel also comprises a medical tool, in contact with live cardiac tissue, used for a medical procedure within patient anatomy. Operational features of the medical tool are determined by a visually perceptible condition of the live cardiac tissue.

Described herein are systems and methods for responding to user input using an agent orchestrator. A system may include a cardiac catheter, a user interface, and a computing device configured to receive, from the user interface, a first user input, receive, from the catheter, the procedure data, determine, using an agent orchestrator, a first agent selection datum, wherein determining the first agent selection datum includes generating the first agent selection datum as a function of the first user input using a trained agent selection machine learning model, using a first agent corresponding to the first agent selection datum, determine a first agent output, wherein determining the first agent output includes inputting into the first agent the procedure data, and receiving, as an output from the first agent, the first agent output, and display, using the user interface, the first agent output.

A heart catheter (10) for removing at least one leaflet (14, 16) of a defective heart valve includes a catheter sheath (30) having a proximal end (36), a distal end (32), and an interior passageway (38) extending between the distal end (32) and the proximal end (36). A catheter wire (42) is insertable into the passageway (38) of the catheter sheath, with the catheter wire (42) having a proximal end (46) and a distal end (48). A first basket (50) is coupled to the distal end (48) of the catheter wire (42 ) and is sized and configured for being received interiorly of a heart valve. A second basket (54) is coupled to the distal end (48) of the catheter wire (42) and is disposed distally than the first basket (50). The second basket (54) is sized and configured to interiorly receive one or more valve leaflets (14, 16) and the first basket (50).

The invention discloses an acellular matrix hydrogel material as well as a preparation method and application thereof. The preparation method comprises the following steps: pretreating fish tissues; performing decellularization treatment on the pretreated fish tissue to obtain a decellularized fish tissue material; the preparation method comprises the following steps: freeze-drying, grinding and digesting the decellularized fish tissue material, and collecting and freeze-drying filtrate of which the molecular weight cut-off is not less than 100KDa through ultrafiltration and centrifugation, so as to obtain the decellularized matrix hydrogel material. The acellular matrix hydrogel material provided by the invention takes the swimming bladder as a raw material, has strong fluidity, can be used for low-resistance cardiac catheter injection, can quickly form hydrogel, has excellent oxidation resistance and good blood compatibility, can improve the local microenvironment of a myocardial ischemia focus, and can be used for treating myocardial ischemia. The repairing of myocardial injury is promoted, so that the recovery of heart tissue structure and function is realized, and a foundation is laid for developing a natural extracellular matrix injectable hydrogel material for treating myocardial infarction.

Described herein are systems and methods for responding to user input using an agent orchestrator. A system may include a cardiac catheter, a user interface, and a computing device configured to receive, from the user interface, a first user input, receive, from the catheter, the procedure data, determine, using an agent orchestrator, a first agent selection datum, wherein determining the first agent selection datum includes generating the first agent selection datum as a function of the first user input using a trained agent selection machine learning model, using a first agent corresponding to the first agent selection datum, determine a first agent output, wherein determining the first agent output includes inputting into the first agent the procedure data, and receiving, as an output from the first agent, the first agent output, and display, using the user interface, the first agent output.

The present invention discloses a blood pump and a cardiac catheter, comprising: a pump housing, a pump rotor and a micro motor arranged in the pump housing, the pump rotor comprising a cylindrical rotating shaft and blades; the blades are provided with a flexible portion and a hard portion along the radial direction of the cylindrical rotating shaft, a clamping portion is provided at one end of the cylindrical rotating shaft, and a power output end of the micro motor is inserted into the clamping portion of the cylindrical rotating shaft; a telescopic deformation portion and a state adjustment portion are provided in the pump housing; the telescopic deformation portion is used to accommodate the pump rotor, and the state adjustment portion controls the telescopic deformation portion to switch between a contracted state and an extended state; when in the contracted state, a first accommodating space is provided in the telescopic deformation portion; the flexible portion of the blade of the pump rotor is bent along the radial direction of the cylindrical rotating shaft and is bound in the first accommodating space; when the telescopic deformation portion is in the extended state, a second accommodating space is provided in the telescopic deformation portion, the flexible portion of the blade of the pump rotor remains in the extended state, and the blade of the pump rotor can rotate in the second accommodating space.

A method for processing at least one electrical signal received from a mapping catheter electrode during cardiac mapping of a patient's heart is disclosed. The method comprises processing the at least one electrical signal to identify a heartbeat in the signal at a time t; analyzing a portion of the at least one electrical signal prior to the detected heartbeat to identify a time t′ when motion of the mapping catheter electrode is at a minimum; and selecting a catheter position for the heartbeat as the position of the catheter at the time t′.

A catheter for electrophysiology includes a shaft extending along a longitudinal axis to a distal end and an end effector coupled to the distal end of the shaft. The end effector includes a first loop member disposed on a first side of the longitudinal axis, a second loop member disposed on a second side of the longitudinal axis, and a third loop member. The third loop member includes a first spine disposed on the first side of the longitudinal axis. The first spine includes a first plurality of electrodes. The first spine is positioned radially outwardly of the first loop member relative to the longitudinal axis. The third loop member further includes a second spine disposed on the second side of the longitudinal axis. The second spine includes a second plurality of electrodes and is positioned radially outwardly of the second loop member relative to the longitudinal axis.