7346 results about "Catheter" patented technology

In one embodiment, a medical system includes a catheter configured to be inserted into a chamber of a heart of a living subject, and including multiple electrodes configured to capture electrical activity from electrical activation signals propagating in tissue of the chamber, a display, and processing circuitry configured to automatically select bipolar signals to be captured into an electro-anatomical map from respective electrode pairs of the multiple electrodes responsively to an alignment of the respective electrode pairs with a direction of propagation of the electrical activation signals, and render the electro-anatomical map to the display.

The present disclosure provides a method and system for analyzing unipolar electrophysiological (EP) signals acquired by a multi-electrode catheter placed in a ventricle of a patient's heart. The method includes receiving unipolar EP signals, extracting unipolar far-field signals from the unipolar EP signals, and analyzing the extracted unipolar far-field signals to estimate the distribution of scar regions across a thickness of wall tissue of the ventricle. Using the estimated distribution, a unipolar far-field EP map showing the scar regions is generated. The method further includes displaying the unipolar far-field EP map including the scar regions to a user. The system comprises a display device and a processor configured to perform the steps of the method.

A modular disease management system may provide medication management for a patient. The system may include a base configured to at least partially couple to a tissue site of a patient. The system may further include a medication bladder coupled to the base and configured to maintain medication. The system may further include a medication pump coupled to the medication bladder, comprising a conduit and muscle wire-actuated plungers, wherein the medication pump is configured to cause the medication to flow from the medication bladder through the conduit. The system may further include a cannula insertion device coupled to the medication pump via the conduit, wherein the cannula insertion device comprises a cannula, a spring, and a triggering component, wherein the cannula insertion device is configured to insert the cannula into the tissue site of the patient by actuation of the spring released by the triggering component.

A fluidics system includes a cassette having a saline subsystem, a contrast subsystem, and a vacuum subsystem. The fluidics system further includes a splitter and a first tubing set coupled to the cassette and splitter, the first tubing set having a single saline channel, a single contrast channel, and a single vacuum channel. The fluidics system further includes two or more hub assemblies, at least one of the two or more hub assemblies configured to have a third saline flow-path, a third contrast flow-path, and a third vacuum flow-path to provide saline, contrast and vacuum to the lumen of a catheter coupled to the at least one of the two or more hub assemblies. The fluidics system further includes a second tubing set having a plurality of tube groups, each tube group coupled to the splitter and to one of the two or more hub assemblies.

The invention relates to a delivery device for delivering a self-expanding tubular implant and a system comprising the same. The conveying device comprises a pushing rod; at least one expandable body disposed at a distal end of the push rod, the expandable body configured to: axially elongate in a radially constrained contracted state; under the expansion state of releasing the constraint, radial expansion and axial contraction are realized; the elastic core wire is arranged in the expandable body in a penetrating mode and connected with the two ends of the expandable body, and the core wire is kept in a straight line shape in the natural state and the contraction state of the expandable body. The conveying device provided by the invention can be matched with a small-size micro catheter and can provide enhanced axial pushing force in the conveying process, so that the pushing efficiency and the operation stability of the tubular implant are improved; meanwhile, the radial expansion force provided by the expandable body can form effective auxiliary support for the implant, rapid wall attachment and stable expansion of the implant are promoted, and therefore the release effect of the implant is improved.

The invention relates to a device for use in the transcatheter treatment of mitral valve regurgitation, specifically a coaptation assistance element for implantation across the valve; a system including the coaptation assistance element and anchors for implantation; a system including the coaptation assistance element and delivery catheter; and a method for transcatheter implantation of a coaptation element across a heart valve.

A cardiac assist device with an expandable cup (4) having a transport state and an operational state, the expandable cup comprising a plurality of inflow apertures (5), and an outflow nozzle (6), and an inflatable balloon (8) positioned inside the expandable cup (4). A catheter assembly (3) is connected to the inflatable balloon (8) during operation, and a control unit (2) is connected to the catheter assembly (3). The control unit (2) is arranged to operate the inflatable balloon (8) with a frequency of more than 100 beats per minute.

A multi-directional bending adjustment delivery device (100) and a valve delivery system. The present invention relates to the technical field of medical instruments and devices. The multi-directional bending adjustment delivery device (100) comprises a catheter assembly (200). The catheter assembly (200) comprises a bending adjustment tube (210). The bending adjustment tube (210) comprises a bending adjustment portion (211) and a straightening portion (212) that are rotatably connected to each other. The bending adjustment portion (211) comprises a plurality of snake bone units (2111) connected end to end. One end of each of the snake bone units (2111) is provided with a pair of first connecting lugs (2113), and the other end is provided with a pair of second connecting lugs (2114). Adjacent snake bone units (2111) are pivotally connected to each other by means of the first connecting lugs (2113) and the second connecting lugs (2114). The included angle between the line connecting the centers of the two first connecting lugs (2113) and the line connecting the centers of the two second connecting lugs (2114) of the same snake bone unit (2111) is 0-90°.

An intracardiac echocardiography (“ICE”) catheter handle, including a housing having a longitudinal axis, the housing having a proximal end and a distal end. A first actuator can be positioned on a first portion of the housing in a plane aligned with the longitudinal axis, the first actuator coupled to a first controller, the first actuator and first controller configured to control a catheter coupled to the first controller in a first direction and a second direction in the first plane. A second actuator can be positioned on a second portion of the housing in a second plane aligned with the longitudinal axis, the second actuator coupled to a second controller, the second actuator and second controller configured to control a catheter coupled to the second controller in a third direction and a fourth direction in the second plane, wherein first plane is aligned orthogonally to the second plane.

The invention discloses a bending-adjustable catheter, and relates to the technical field of interventional medical instruments, the bending-adjustable catheter comprises an inner tube, an outer tube, a bending-adjustable supporting tube and a handle, the inner tube comprises an inner tube bending section located at the far end, the inner tube bending section can be bidirectionally bent, and the inner tube bending section at the far end of the inner tube extends outwards from the outer tube; position anchoring of the outer pipe can be achieved through the anchoring structure; the far end of the bending adjusting supporting pipe is connected with the bending adjusting section of the inner pipe, the far end of the outer pipe is fixed to the bending adjusting supporting pipe, and the elasticity modulus of the bending adjusting supporting pipe is smaller than that of the inner pipe. The handle is provided with an inner pipe pushing piece. When the outer tube is anchored to the inner wall of a blood vessel, axial acting force is applied to the inner tube through the inner tube pushing piece, the inner tube control bending section is bent under the action of the axial acting force and supporting force applied by the bending adjusting supporting tube, large-angle bending adjusting can be achieved at the far end of the inner tube, overall rotation of the inner tube and the outer tube is matched, and the far end of the inner tube can rotate in a three-dimensional space. The bending of the adjustable-bending catheter in any direction is realized, and the adjustable-bending catheter can better pass through a roundabout blood vessel.

A system includes a navigation apparatus and controller. The navigation apparatus includes a body assembly that includes a plurality of pneumatic or artificial muscles that are configured to interact with a sidewall of the conduit and move the body assembly through the conduit. The plurality of pneumatic or artificial muscles are independently actuated to steer the body assembly. The navigation apparatus also includes a sensor array coupled to the body assembly. The sensor array is positioned to interact with the sidewall of the conduit and provide signals as the body assembly moves through the interior cavity. The controller is communicatively coupled to the sensor array and configured to determine a characteristic of the conduit based on the signals provided by the sensor array.

A method of extracting a thrombus from a thrombus site in a cerebral artery of a patient by advancing a first catheter into an internal carotid artery of the patient; advancing a funnel catheter within the first catheter; moving the funnel catheter and the first catheter with respect to each other to place the funnel outside of the first catheter; expanding the funnel into contact with an inner wall of the internal carotid artery at or proximal to a distal end of a carotid siphon, thereby reducing blood flow past the funnel; advancing a clot-mobilizer distally through the first catheter toward the thrombus and beyond the carotid siphon; engaging thrombus material from the thrombus with the clot-mobilizer; moving the clot-mobilizer and thrombus material proximally at least partially into the funnel; applying suction to aspirate thrombus material; and moving the funnel, the clot-mobilizer and the thrombus material proximally within the vasculature.

A catheter steering system wherein the user interface device is a flexible shaft that can be manipulated by hand. The motion imparted on the flexible steering device is reflected in the motion of the catheter tip through an arrangement of pull wires or other mechanisms. Through this arrangement a more intuitive control of the catheter tip is obtained. In an example, a catheter control device includes a catheter port configured to receive the proximal end of a catheter that includes one or more pull wires for attachment to a swashplate, a swashplate, a steering shaft configured to bend in response to a force being applied to the steering shaft; and a mechanism configured to translate the bend of the steering shaft to movement of the swashplate to correspondingly move the distal tip of a catheter coupled to the swashplate.

A medical pad for exchanging thermal energy between a targeted temperature management (TTM) fluid and a patient is disclosed. The pad can include a fluid containing layer and a fluid conduit attached therewith via rotatable joint where the joint is configured to facilitate rotation of the fluid conduit with respect to the pad. A method of manufacturing the pad can include coupling a first member of the rotatable joint to a fluid delivery line, coupling the second member to the fluid containing layer, and inserting the first member within an opening of the second member to facilitate a snap-fit retention mechanism between first member and the second member. A method of using the pad can include rotating the fluid delivery line relative to the thermal pad via the rotatable joint when initially applying the pad to the patient or when adjusting an orientation of the pad on the patient.

An endotracheal tube apparatus to treat a patient comprising an endotracheal tube and a hub connection fitting; the endotracheal tube insertable into a trachea of the patient; the hub connection fitting connectable to the endotracheal tube; a ventilation passageway extending through the hub connection fitting and a ventilation lumen of the endotracheal tube; a plurality of ports joined with the hub connection fitting, the plurality of ports comprising at least a first port and a second port; a first passageway extending within the hub connection fitting, the first passageway in fluid communication with the first port; a second passageway extending within the hub connection fitting, the second passageway in fluid communication with the second port; a third passageway extending within the hub connection fitting and a secondary lumen of the endotracheal tube.

The invention provides a duodenal mucosa adjusting system and method based on pulsed electric field ablation and application of the duodenal mucosa adjusting system and method in diabetes treatment, the duodenal mucosa adjusting system comprises an intelligent control host capable of achieving bidirectional data transmission and an adjustable catheter, and the intelligent control host initializes parameters and adjusts pulse parameters by monitoring impedance data in real time until pulses are interrupted or terminated; periodic ablation is carried out, periodic intervals are used for measuring impedance data, the ablation depth is evaluated according to the impedance change rate, and whether next section ablation is carried out or not is judged till full-area ablation is completed. The far-end ablation adopts a structure of combining fusiform flexible support and annular electrode spiral arrangement to ensure that an ablation field uniformly covers mucous membrane plica of a duodenum bulb part and a descending part; a cell selective ablation mechanism is adopted, the critical electric field intensity is set, K cell electroporation is selectively induced, and meanwhile goblet cells are protected.

A catheter pump assembly is provided that includes an elongate body, an elongate flexible shaft disposed in the elongate body, and an impeller coupled with the distal end of the elongate flexible shaft. The drive system includes a drive component, a motor and a tension member. The tension member is coupled with the motor and the drive component and to cause the drive component to rotate, and thereby to cause the impeller to rotate.

A medical device delivery system includes a steering catheter including a first steering ring having a plurality of apertures positioned in the wall of the first steering ring. The plurality of apertures are positioned at spaced distances around a circumference of the first steering ring. A first steering cable passes through a first one of the apertures, and a first return cable passes through a second one of the apertures. A second steering cable passes through a third one of the apertures, and a second return cable passes through a fourth one of the apertures. The first steering cable is positioned about 180 degrees from the second steering cable. A handle is operably coupled to a proximal end of the steering catheter. A first control member controls the first steering and first return cable, and a second control member controls the second steering and second return cable.

An ablation system is disclosed. The ablation system comprises a tubular ablation catheter and an ablation instrument. The catheter comprises a far end used for being attached to target tissue to be ablated, a near end used for being connected with the ablation instrument and a catheter body located between the far end and the near end. The ablation instrument transmits radio frequency / pulse energy to the ablation catheter, so that the catheter ablates the target tissue; the electrode group at the far end is used for collecting electrocardiosignals of target tissues and transmitting the electrocardiosignals to the three-dimensional heart electrophysiological mapping system to realize heart modeling and mapping, and each electrode has the capabilities of collecting the electrocardiosignals and ablating the target tissues; and the electrode group receives a control signal from the ablation instrument, and determines that the electrodes in the electrode group work in a single-pole / double-pole mode according to the control signal and realizes dotted / linear ablation. According to the system, mapping and ablation functions are integrated in a single catheter, two purposes are achieved through one catheter, flexible switching of various ablation modes / shapes / energy is supported, and high universality is achieved.

Laser IVL systems and methods are disclosed. A laser IVL system can include at least one light energy source and a catheter. The catheter can include an elongate sheath, an enclosure sealed to a distal end of the elongate sheath, and at least one optical fiber contained within the elongate sheath. The enclosure may have a fill volume less than 10 mL and may be fillable with a fluid. The at least one optical fiber can be optically coupled to receive light from the at least one light energy source and configured to transmit the received light at a light emitting region of the at least one optical fiber into a distal region of the catheter that is enclosed by the enclosure to generate shock waves in the fluid.

A method of manufacturing an article of footwear includes forming a sole structure that uses an additive manufacturing system. The sole structure includes a conduit that extends within a region of the sole structure. The conduit includes an end that protrudes outwardly from a surface of the sole structure and a channel defined through the conduit. The method also includes connecting the end of the conduit to an injector and injecting a reinforcement material into the channel of the conduit to form a reinforcement member. The method further includes removing a portion of the end of the conduit.

The invention provides a visual bronchoscope device, and relates to the technical field of endoscope catheters. The visual bronchoscope device comprises a catheter body and a handle sleeve, an integrated imaging module is eccentrically arranged at the far end of the catheter body, the near end of the catheter body is connected with the handle sleeve, a sputum suction channel is formed in the catheter body, and a handle isolating membrane is further arranged on the imaging catheter; the integrated imaging module comprises a plurality of miniature LEDs and an ultra-miniature CMOS image sensor; the device further comprises a handle and a computer, and the computer comprises an image processing unit which is used for receiving original image data from the integrated imaging module, performing image processing on the original image data and displaying an image processing result on the display screen. The kit can be used for auxiliary diagnosis of lung diseases.

The invention relates to the technical field of medicinal packaging container manufacturing, and discloses a processing technology of a double-cavity cartridge bottle, which comprises the following steps: glass tube loading: selecting a glass tube as a raw material, loading the glass tube into a clamping mechanism of forming equipment, fixing the glass tube through a positioning assembly, enabling the axis of the glass tube to coincide with a processing datum line of the equipment, and forming the glass tube; according to the processing technology of the double-cavity cartridge bottle, double-cavity integrated forming is adopted, the strength and the sealing performance of a separation structure of the main body cavity and the bypass cavity are effectively improved, the sealing hidden danger of split splicing is avoided, the leakage and fracture risks are greatly reduced, the technology is matched with the two forming means that a guide pipe is inserted into blow molding and matched with a mold, and medicinal glass raw materials are compatible; the double-cavity cartridge bottle meets the requirements of medical storage for stability and adaptability, meets the storage requirements of various drugs, reduces drug adsorption and chemical reactions, broadens clinical application scenes, and remarkably improves the practical value of the double-cavity cartridge bottle.

The utility model belongs to the technical field of medical instrument ablation, and particularly relates to an ablation assembly applied to automatic operation and an automatic-operation medical device.The ablation assembly applied to automatic operation comprises a consumable handle provided with a first sliding groove; the first adapter block can linearly move in the first sliding groove; one end of the first catheter is connected with the consumable handle; the first connecting piece can be detachably connected with an external instrument and is arranged at the other end of the first catheter; the first sliding block is movably arranged in the first sliding cavity of the first connecting piece, and the first sliding block is connected with the first adapter block; the outer sheath tube is arranged on the first adapter block, and the first sliding block is connected with the first adapter block, so that the first adapter block can drive the outer sheath tube to do reciprocating linear movement relative to the consumable handle; the ablation electrode is arranged on the outer sheath tube and can be configured with ablation energy. By the adoption of the structure, automatic conveying of the outer sheath tube and the ablation electrode can be achieved, operation is convenient and fast, and control is easy.

The application provides a kind of intelligent pressure monitoring 3D printing scoliosis orthosis, comprising: first body and second body;One or more inner grooves are respectively provided on the first body and the second body;Front groove is provided on the second body;The inner groove is filled with air bag, and pressure sensor is arranged in the recess of air bag, and pressure pad for contacting the skin of patient is arranged on the pressure sensor;Air tube is connected with inflatable and deflatable inflation pump, and the pressure sensor is connected with single-chip microcomputer arranged in the front groove by connecting line.The scoliosis orthosis according to the application is designed according to 3D scanning and completed by 3D printing, which can realize structure design such as hollowing, groove, trimming and catheter, solve the problem of traditional orthosis such as not breathable, not beautiful, waste material, the first body and the second body are connected by connecting rope, so that the orthosis body has a larger opening angle, which is convenient for patients to put on and take off and bandage pressure increase.

A system for performing minimally invasive procedures in a body lumen of a patient including a flexible catheter having a first lumen configured and dimensioned to receive an endoscope therethrough and a second lumen configured and dimensioned to receive a first flexible tube therethrough. The first flexible tube is movable through the second lumen and has a distal portion including a first curve extending in a first direction with respect to the longitudinal axis and a second curve extending in a second different direction with respect to the longitudinal axis. A retractor system is positioned at a distal portion of the catheter and is movable from a non-expanded insertion position to an expanded position forming an expanded cage to form a larger working space. The distal portion of the first flexible tube is movable within the expanded cage.

Embodiments of methods and systems for determining electrocardiogram (ECG) depth of electrical activity. Electrical activity from a plurality of electrodes of a catheter is received; and within the electrical activity, an electrical signal originating from a depth within cardiac tissue is identified. In some embodiments, spatial electrode signal analysis of the electrical activity may be performed for each electrode of the plurality of electrodes. In some embodiments, a linear and / or non-linear combination of signal components within the electrical activity may be calculated. In some embodiments, a neural network may be provided with the electrical signals and may determine an estimated distance to the nearest activation for at least one of the plurality of electrodes. A visualization of the identified electrical signals at a specified depth within the cardiac tissue may be provided for display.

An automatic guide pipe cleaning device comprises a skip car, a machine body, a material moving mechanism and a wiping mechanism. A plurality of guide pipes are loaded on the skip car; an operation cavity for a material trolley to enter and exit is formed in the machine body, a station plate is arranged in the operation cavity, and the guide pipe can be vertically placed on the station plate and is in a suspended state; the material moving mechanism comprises a first driving part and a material taking part, the material taking part is located in the operation cavity and used for taking and placing the guide pipe, and the first driving part is installed on the machine body and is in driving connection with the material taking part so as to drive the material taking part to move between the skip car and the station plate to transfer the guide pipe; the wiping mechanism comprises a second driving part, a cleaning assembly and wiping cloth. The cleaning assembly is located in the containing cavity and can drive the wiping cloth to abut against the guide pipe on the station plate. The second driving part is mounted on the machine body and is in driving connection with the cleaning assembly to drive the cleaning assembly to move from top to bottom so as to enable the wiping cloth to clean the outer wall of the guide pipe; therefore, the cleaning device can automatically pick, place and wipe the catheter, ensures that the cleanliness reaches the standard, and improves the working efficiency and the cleaning effect.

The invention provides a reinforcement learning training method and system based on a multi-target structured reward function, and the method comprises the steps: an environment simulation layer comprises a physical engine and a blood vessel environment simulator, and is used for simulating the physical movement and interaction of a catheter in a blood vessel, and providing an environment state for a reward calculation layer; the reward calculation layer performs calculation through a plurality of independent calculation modules and finally generates a comprehensive reward value through a composite reward aggregator; the reinforcement learning layer learns and optimizes a navigation strategy according to the comprehensive reward value; and the monitoring evaluation layer monitors each performance index in the training process and adaptively adjusts the weight of each reward component in the reward calculation layer according to the index change. According to the invention, a major breakthrough of reinforcement learning in medical robot training is realized. Compared with a traditional single reward function method, the intelligent agent which is really thought by experts can be trained, and the method not only pursues to quickly reach a target, but also knows how to safely and stably complete operation.

The invention discloses a cardiovascular intervention catheter storehouse scheduling system based on demand analysis, and relates to the technical field of medical informatization, and the system comprises a data collection module which is used for obtaining an operation plan, a doctor identifier, a step sequence and an angiography image; the feature extraction module is used for generating a situation feature vector according to the contrast image; the standard deduction module is used for deducing subsequent steps and corresponding catheter sets; the selection probability calculation module is used for querying a doctor preference knowledge base in combination with the doctor identifier, the step code and the feature vector to obtain catheter selection probability distribution; the first judgment module is used for outputting a predicted catheter model if the catheter selection probability exceeds a first threshold value, otherwise, counting the catheter use frequency of the historical data of the doctor; the second judgment module is used for outputting the corresponding catheter model if the use frequency exceeds a second threshold value, otherwise, determining a predicted catheter model from the standard catheter set according to a rule; the accuracy and clinical suitability of catheter prediction can be improved.