75 results about "Cardiac pacemaker" patented technology

Cardiac pacemaker for a patient's heart including a processing unit with a data memory, further including a first detector, and a second detector, a pacing signal generator, which are all electrically connected to the processing unit, wherein the first detector is configured to detect time-dependent electrical signals of the heart, wherein the second detector is configured to detect time-dependent bodily signals of the patient different from the signals detected by the first detector, wherein the first detector and the second detector are configured to transmit the detected and, if applicable, pre-processed signals to the processing unit, wherein the processing unit is configured to process the signals received from the first detector and the signals from the second detector and to detect from the received signals of the first detector intrinsic atrial events, intrinsic ventricular events and pacing events and to determine an actual cardiac rate.

The invention discloses a dressing-change-free intelligent compression healing promoting device after cardiac pacemaker implantation. The dressing-change-free intelligent compression healing promoting device comprises a composite dressing, a polymorphic biosensor, a medicine injection hose, a pressure applying air bag, a thermoplastic material and an acceleration sensor, the polymorphic biosensor medicine injection hose and the pressure applying air bag are arranged in the inner layer of the composite dressing, the position, corresponding to an incision, of the medicine injection hose is arranged in the composite dressing, and one end of the medicine injection hose is connected with the antibiotic storage injector in a split mode; the thermoplastic material is integrally connected to the side, close to the clavicle, of the upper portion of the composite dressing, the acceleration sensor is arranged in the thermoplastic material, the pressure applying air bag is detachably connected with the air pump through the air adding hose, and the one-way valve is installed on the air adding hose. According to the dressing-change-free intelligent compression healing promoting device used after cardiac pacemaker implantation, the positions and the connection relation of all the components are defined, function cooperation is achieved, and the problems existing in an existing nursing mode are effectively solved.

The present disclosure belongs to the technical field of artificial cardiac pacemakers, and particularly relates to a leadless left-bundle-branch pacemaker. The leadless left-bundle-branch pacemaker comprises a case and an implant core, wherein the implant core is coaxially arranged inside the case, and a head of the implant core can be rotated out from the inside of the case; the implant core has an implant end that can be rotated out from the inside of the case, and the length of the implant end rotated out from the inside of the case is greater than 10 mm; and an end of the case corresponding to the implant end is provided with a fixing end for fixing the pacemaker.

The invention discloses a cardiac pacemaker, characterized in that the cardiac pacemaker comprises a multiple of microneedles and a chip comprising at least one comparator with adaptive level, sequence control circuit, at least one capacitor stack built by n capacitors and 2n switches, at least one buffer capacitor outside the at least one capacitor stack, at least two additional switches outside the at least one capacitor stack, a CMOS-Logic, wherein further, the cardiac pacemaker comprises an interposer layer comprising holes for the multiple of microneedles and a lid. The cardiac pacemaker is characterized in that the chip, is located on one surface of the interposer layer and that the lid and the interposer layer form a capsule for the chip. Further, each microneedle of the array of microneedles has a distal end which protrudes from the chip and the cardiac pacemaker is adapted to be electrically self-sufficient.

The invention discloses a post-operation dynamic pressure hemostasis device for a cardiac pacemaker, and belongs to the technical field of cardiac department surgical instruments, the post-operation dynamic pressure hemostasis device comprises a frame, a first sliding groove, a small air pump, a plurality of exhaust pipes and a control panel, the first sliding groove is formed in the frame and communicated with the outside, and a sliding plate is slidably connected in the first sliding groove; a plurality of air bags are fixedly connected to one side of the sliding plate, a connecting pipe is fixedly connected between the air bags, and an inner cavity of the connecting pipe is communicated with inner cavities of the air bags; the small air pump is fixedly connected to the other side of the sliding plate, and an output shaft of the small air pump is fixedly connected with the connecting pipe; the exhaust pipes are fixedly connected to the air bags respectively. According to the position of the wound of the patient, the position of the dynamic pressure hemostasis device is adjusted, so that the dynamic pressure hemostasis device can quickly adapt to the wound requirements of different patients and different operations, the clinical universality of the dynamic pressure hemostasis device is improved, and diversified cardiac pacemaker postoperative hemostasis scenes are met.

The utility model provides a novel cardiac pacemaker lead fixing device belongs to medical appliance technical field, this novel cardiac pacemaker lead fixing device, include: lead body, the inside of lead body is equipped with thin metal wire, and the surface is provided with rotating handle. The utility model: the lead body is passed through the protection sheath pipe, and the anchor head end structure of lead body one end is moved to the inside of heart, until the main helical silk of nickel titanium alloy is made on the anchor head end and is fixed with the outer layer of myocardium, further adjusts the rotating handle on the surface of lead body to make the electrode end continue to move, the diameter between a plurality of inner layer's auxiliary micro helical silk changes in the process of rotating to drive a plurality of anchor block rotation and move and pass through endocardium, cooperate a plurality of anchor block surface's anchor hook and enhance the stability of lead body fixed, realize the purpose of anchor head end grading anchor operation.

The invention belongs to the technical field of biological medicine, and discloses an injectable hydrogel combined reagent, self-curing conductive hydrogel and application thereof. The injectable hydrogel combined reagent provided by the invention comprises a solution A and a solution B, the solution A is a first precursor solution formed by dissolving modified poloxamer PFUDAm and ammonium persulfate in deionized water; the solution B is a second precursor solution formed by dissolving N-isopropylacrylamide NIPAM, ferrous gluconate and PEDOT: PSS in deionized water, after the injectable hydrogel combined reagent is mixed in a duplex injection mode, PFUDAm, poly (N-isopropylacrylamide) and PEDOT: PSS are subjected to an oxidation-reduction reaction of ammonium sulfate and ferrous gluconate to initiate polymerization, and the self-curing conductive hydrogel is constructed. The self-curing conductive hydrogel has controllable curing time, and the self-curing conductive hydrogel has excellent swelling resistance, conductivity and good elasticity and toughness, and is expected to be combined with a cardiac pacemaker to be applied to treatment of arrhythmia.

An introducer hub assembly, such as an introducer hub assembly of a leadless cardiac pacemaker, including a hemostatic seal having a cross-slit configuration, is described. The hemostatic seal can be retained between a hub cap and an introducer hub. The hemostatic seal includes a first section having first slits intersecting along a longitudinal axis of the introducer hub, and a second section having second slits intersecting along the longitudinal axis. The first slits are angularly offset relative to the second slits to reduce a likelihood that fluid will leak directly through the seal. Other embodiments are also described and claimed.

A pacemaker has a housing and a therapy delivery circuit enclosed by the housing for generating pacing pulses for delivery to a patient's heart. An electrically insulative distal member is coupled directly to the housing and at least one non-tissue piercing cathode electrode is coupled directly to the insulative distal member. A tissue piercing electrode extends away from the housing.

Disclosed herein is a system for cardiac rhythm management including an implanted cardiac pacemaker and a biometric finger ring. This system ensures good oxygenation of a person's body extremities. The finger ring includes optical sensors which measure the person's blood oxygenation level. The operation of the implanted cardiac pacemaker is adjusted based on combined analysis of motion data from the pacemaker, motion data from the finger ring, and blood oxygenation level data from the biometric finger ring.

A retrieval system for a biostimulator, such as a leadless cardiac pacemaker, is described. The biostimulator retrieval system includes a docking cap rotatably coupled to an outer catheter by a bearing. A torque shaft extends through the outer catheter and attaches to the docking cap to transmit torque to the docking cap to cause rotation of the docking cap relative to the outer catheter. The rotating docking cap can transmit torque to an attachment feature of a biostimulator received within the docking cap. The attachment feature can be captured by a snare that extends through the torque shaft. A cincher tube extends through the torque shaft around the snare, and advances over the snare independently from the torque shaft that is attached to the docking cap, to cinch the snare onto the attachment feature. Other embodiments are also described and claimed.

The device for testing pacemakers in static and extremely low frequency magnetic fields comprises an Agar phantom (6) irradiated by an electromagnetic field source (5) and at least one three-axis static magnetic field sensor (4a) and at least one three-axis alternating magnetic field sensor (4b). These are placed at the same distance from the pacemaker under test (3) to monitor the intensity, direction and spatial distribution of the magnetic field generated by the electromagnetic field source (5) in the area of ​​a single-chamber or dual-chamber tested pacemaker (3) placed in the Agar phantom (6). A test pulse generator (1) is connected to the single-chamber pacemaker (3) by one wire or to the dual-chamber pacemaker (3) by two wires and a response sensor (2) is connected by an electrode to sense the response of the pacemaker (3) in real time. The generator (1), the static magnetic field sensor (4a), the alternating magnetic field sensor (4b) and the response sensor (2) are connected by wires to the communication module (7) and wired or wirelessly connected to a computer (8) for processing, analyzing and visualizing the measured data.

A pacemaker has a housing and a therapy delivery circuit enclosed by the housing for generating pacing pulses for delivery to a patient's heart. An electrically insulative distal member is coupled directly to the housing and at least one non-tissue piercing cathode electrode is coupled directly to the insulative distal member. A tissue piercing electrode extends away from the housing.

The utility model discloses a cardiac pacemaker electrode fixing device, which belongs to the technical field of cardiac pacemakers and is technically characterized by comprising a pacemaker component, a mounting component and a limiting component. According to the pacemaker assembly, when the pacemaker assembly is installed, a bag belt can be arranged under the skin of a patient, then the pacemaker body is arranged in the bag belt, and the electrode wire A and the electrode wire B penetrate through the bag belt and are arranged on cardiac muscle tissue of the patient; then, in order to enable the A electrode wire and the B electrode wire to be stably connected with the observation block, two mounting assemblies are arranged on the observation block, and the A electrode wire and the B electrode wire can be rapidly and stably connected with the observation block through the two mounting assemblies; and then the mounting assembly can be limited through the limiting assembly, so that the mounting assembly cannot fall off after being used for a long time, and the connection is more stable.

Embodiments of the disclosure include systems and methods utilizing a cardiac pacemaker. A cardiac pacemaker may comprise a pair of endocardial leads. A first lead including a bipolar pair of electrodes for making electrical contact with a patient's right atrium. A second lead including a bipolar pair of electrodes for making electrical contact with a patient's right ventricle. In an embodiment, the leads are prepared from and / or comprises conductive carbon fiber or nano-tubule conductive carbon fiber.

A computer implemented method for programming leadless cardiac pacemakers including assigning a unique identifier to each of the first leadless cardiac pacemaker and the second leadless cardiac pacemaker by means of the computing device, and preconfiguring the parameters of the first leadless cardiac pacemaker and / or the second leadless cardiac pacemaker by means of the computing device regardless of a location of the first leadless cardiac pacemaker and the second leadless cardiac pacemaker with respect to a transmit-receive unit of the computing device. Moreover, the invention relates to a system for programming leadless cardiac pacemakers. In addition, a computer program and a computer-readable data carrier are also disclosed.

The invention discloses a digital intelligent management method for CIED patients and related equipment. The method comprises the following steps: acquiring an implantation period of a cardiac pacemaker of a target patient, wherein the implantation period comprises an acute period, a stable period and an adjacent replacement period; based on the implantation period of the cardiac pacemaker where the target patient is currently located, selecting a monitoring management strategy associated with the current implantation period; and performing intelligent management on the target patient according to the selected monitoring management strategy. The problems that the self-management ability of patients is generally not high, CIED needs to be carried for lifetime, management is improper, the life quality is affected, manual management is mostly adopted at present, traditional follow-up visit depends on outpatient service, and continuous tracking is difficult can be solved.

A biostimulator, such as a leadless cardiac pacemaker, including coaxial fixation elements to engage or electrically stimulate tissue, is described. The coaxial fixation elements include an outer fixation element extending along a longitudinal axis and an inner fixation element radially inward from the outer fixation element. One or more of the fixation elements are helical fixation elements that can be screwed into tissue. The outer fixation element has a distal tip that is distal to a distal tip of the inner fixation element, and an axial stiffness of the outer fixation element is lower than an axial stiffness of the inner fixation element. The relative stiffnesses are based on one or more of material or geometric characteristics of the respective fixation elements. Other embodiments are also described and claimed.

A kind of in- situ pressure measuring device of leadless cardiac pacemaker sheath head, including leadless cardiac pacemaker sheath and pressure measuring module.Leadless pacemaker sheath includes cylindrical head, and the head includes end face, outer side and inner side;Pressure measuring module includes pressure monitoring sensing unit, signal processing transmission unit, power supply unit and flexible encapsulation layer, flexible encapsulation layer is wrapped pressure monitoring sensing unit, signal processing transmission unit and power supply unit, and pressure measuring module is fixed to head;Pressure monitoring sensing unit is located at end face and is conformed to end face;Signal processing transmission unit and power supply unit are located at outer side and are conformed to outer side.Pressure monitoring sensing unit is configured to monitor the pressure signal of end face, signal processing transmission unit is configured to process pressure signal and is transmitted to outside by wireless mode.This application can monitor in real time and wirelessly transmit the change data of head pressure of leadless pacemaker sheath during operation.

1. The name of the design product: implantable dual chamber leadless cardiac pacemaker. 2. The use of the design product: medical device for cardiac rhythm management. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The invention relates to a flexible wireless biological interface based on hydrogel and liquid metal and a preparation method, and belongs to the field of bioelectronics. The flexible wireless biological interface comprises a hydrogel substrate, a middle circuit layer and a hydrogel packaging layer, is of a sandwich structure and is applied to a cardiac pacemaker, and the manufacturing process comprises the steps that a hydrogel precursor solution is poured into a template to manufacture the hydrogel substrate and the packaging layer; preparing printing conductive ink; printing a liquid metal circuit pattern on the hydrogel substrate by using a template printing method; placing the components at the corresponding circuit positions, and dropwise adding liquid metal at the pin positions of the components; a nickel layer is pasted at the tail end of the circuit to serve as a stimulation output interface; and packaging a circuit by using the hydrogel packaging layer to prepare the flexible wireless cardiac pacemaker based on the hydrogel and the liquid metal. According to the invention, a liquid metal circuit is printed at one time by using a template printing technology, and a bioelectronic device can be manufactured on a hydrogel substrate.

A cardiac pacemaker for a patient's heart, for example an ILP which realizes integrated circuit space conservation and simple design that covers many modes of operation even though robust behaviour requires complex dynamic adaptive algorithms. The pacemaker includes a processing unit, a detector and a pacing signal generator, wherein the processing unit, the detector and the pacing signal generator are electrically interconnected, wherein the detector is configured to detect electrical signals of the heart, for example an intracardiac electrogram, and to transmit these signals to the processing unit, wherein the processing unit is configured to perceive an intrinsic ventricular signal and an intrinsic atrial signal from the signals received from the detector, to enable or disable the perception of the intrinsic atrial signal, to produce a ventricular pacing control signal.

The invention relates to leadless cardiac pacemakers (LBS), and elements and methods by which they affix to the heart. The invention relates particularly to a secondary fixation of leadless pacemakers which also include a primary fixation. Secondary fixation elements for LBS's may passively engage structures within the heart. Some passive secondary fixation elements entangle or engage within intraventricular structure such as trabeculae carneae. Other passive secondary fixation elements may engage or snag heart structures at sites upstream from the chamber where the LBS is primarily affixed. Still other embodiments of passive secondary fixation elements may include expandable structures.

The present invention relates to an implantation and / or retrieval device for a leadless cardiac pacing device, which may include: a first elongated shaft including a lumen; a second elongated shaft slidably disposed in the lumen of the first elongated shaft; an end cap assembly fixedly attached to a distal end of the first elongated shaft; and a plurality of wires attached to the second elongated shaft and extending distally from the end cap assembly, the plurality of wires being movable relative to the end cap assembly. The plurality of wires are configured to engage a proximal hub of the leadless cardiac pacing device. The plurality of wires form a plurality of wire loops extending distally from the end cap assembly.

The utility model discloses a cardiac pacemaker fixing assembly, and relates to the field of medical devices, the cardiac pacemaker fixing assembly comprises a placing box, one side of the placing box is fixedly connected with a first elastic band, the other side of the placing box is fixedly connected with a second elastic band, the surface of the first elastic band and the surface of the second elastic band are both fixedly connected with a third elastic band, and the third elastic band is fixedly connected with a third elastic band. An arc-shaped surface is arranged on the inner wall of one side of the placement box, a vertical surface is arranged on the inner wall of the other side of the placement box and used for being attached and matched with the surface of a product shell of the cardiac pacemaker, and a positioning anti-falling mechanism is arranged on the surface of the placement box. According to the utility model, the arc-shaped surface and the vertical surface are used for fitting and matching with the surface of the product shell of the cardiac pacemaker, and the contact arc groove is used for fitting and matching with the surface of the product shell of the cardiac pacemaker, so that the stability of the cardiac pacemaker placed in the placement box is limited through the two surfaces; and meanwhile, the cardiac pacemaker can be quickly replaced and detached.

The utility model discloses an armband type cardiac pacemaker post-operation magnetic field monitoring device, which relates to the technical field of monitoring equipment, and comprises an equipment shell, an equipment buckle cover is detachably mounted on the equipment shell, two sides of the equipment shell are symmetrically provided with hanging shafts, the two hanging shafts are respectively connected with two ends of an elastic armband, and the elastic armband is connected with the equipment buckle cover. An equipment opening is formed in one side of the equipment shell, an arm band inner tongue is fixed to the end, close to the equipment opening, of the elastic arm band, a driving structure used for tightening and loosening the arm band is arranged in the equipment shell, and the arm band inner tongue penetrates through the equipment opening, enters the equipment shell and is connected with the driving structure; a monitoring structure for controlling the driving structure is further arranged in the equipment shell, and a battery for providing power for the driving structure and the monitoring structure is installed in the equipment shell. The cardiac pacemaker is beneficial to enhancing the self-protection consciousness of a patient and preventing the magnetic field from influencing the normal work of the cardiac pacemaker.

A cardiac pacemaker which stays synchronized with the heart's natural cycle even if atrial sensing events are intermittently sensed and intrinsic AV conduction occurs intermittently. The pacemaker includes a processing unit, a data memory, a detector and a pacing signal generator, wherein the processing unit, the data memory, the detector and the pacing signal generator are electrically interconnected, wherein the data memory is configured to store a pre-defined programmed AV delay, wherein the detector is configured to detect an intrinsic atrial activity signal and to detect an intrinsic ventricular activity signal, wherein the processing unit is configured to produce a ventricular pace control signal and to transmit it to the pacing signal generator. A respective operation method is also disclosed.

The utility model discloses a cardiac pacemaker implantation post-operation pressurization fixing band, which comprises an axilla fixing band, a neck fixing band and a pressurization piece, the edge of the pressurization piece is fixedly connected with the neck fixing band, the pressurization piece is fixedly connected with the axilla fixing band at the two sides of the neck fixing band respectively, and the axilla fixing band is fixedly connected with the neck fixing band. And the axilla fixing band is arranged on one side close to the neck fixing band. The pressurizing device solves the problems that in the prior art, no special pressurizing device is used after a cardiac pacemaker implantation operation, an existing sandbag pressurizing mode is poor in pressurizing effect, and the postoperative rehabilitation effect of a patient is affected. The cardiac pacemaker implantation post-operation pressurization fixing band is reasonable in structure and convenient to use; the axilla fixing band adopts a scientific and reasonable structural design, so that the fixing band is easy to wear and adjust, and the fixing effect on the pressurizing piece is facilitated; the whole structural design is simple, economical, safe and comfortable, stimulation and oppression to the skin of a patient can be relieved through the split design of the pressurizing piece, and the comfort of the patient is improved.

Currently used electrical pacemakers in therapeutic regimens for the treatment of "sick sinus syndrome" are not adjustable in terms of hormones and have the risk of infection or premature battery discharge. These problems can be overcome with the aid of "bio pacemakers" from pluripotent stem cells (PSCs). It has been shown that TBX (an inducer of sinoatrial node cells) for the controlled differentiation of stem cells and additional Myh6 promoter-specific antibiotic selection can produce myocardial cell aggregates consisting of more than 80% physiologically functional pacemaker cells. These induced sinoatrial bodies ("iSABs") exhibit very high beating frequencies (300-400 bpm) for the first time, similar to the beating frequencies in murine hearts, and are able to stimulate isolated myocardial cells rhythmically and stably. In the iSAB transcriptome decoded with the aid of RNA-seq, it is possible to assign almost all genes to the ontology of cardiac function / cardiac development and the structure of contractile cells. In summary, this is the first example of high-purity functional sinoatrial tissue derived from stem cells, which means that a key step is being taken towards future cell therapies and in vitro drug testing.

The utility model belongs to the technical field of medical auxiliary instrument, provide a kind of TAVR in operation guide wire pacing with adapter, including the anode adapter terminal and body surface electrode patch of electric connection, and the cathode adapter terminal and guide wire crocodile clip of electric connection;Anode adapter terminal is provided with anode pin, cathode adapter terminal is provided with cathode pin, to be connected with temporary pacemaker by anode pin and cathode pin, to be connected with pacing guide wire system by body surface electrode patch and guide wire crocodile clip.The TAVR in operation guide wire pacing with adapter provided by the utility model solves the problem that there is currently lack of adapter specially used for connecting guide wire and temporary cardiac pacemaker, reduces the complexity and complexity of guide wire connection in guide wire pacing process, improves operation convenience, simultaneously avoids the problem that the conductive connection end is exposed caused by using long needle or needle head connection crocodile clip, to avoid short-circuit phenomenon, improve the stability and security of connection.