45 results about "Cardiac pacemaker" patented technology

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 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.

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.

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 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.

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.

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.

A biostimulator, such as a leadless cardiac pacemaker, having a flexible circuit assembly, is described. The flexible circuit assembly is contained within an electronics compartment between a battery, a housing, and a header assembly of the biostimulator. The flexible circuit assembly includes a flexible substrate that folds into a stacked configuration in which an electrical connector and an electronic component of the flexible circuit assembly are enfolded by the flexible substrate. An aperture is located in a fold region of the flexible substrate to allow a feedthrough pin of the header assembly to pass through the folded structure into electrical contact with the electrical connector. The electronic component can be a processor to control delivery of a pacing impulse through the feedthrough pin to a pacing tip. Other embodiments are also described and claimed.

The utility model relates to the technical field of injection molds, and discloses an injection mold for a cardiac pacemaker plastic support, which comprises an injection mold for molding the cardiac pacemaker plastic support; the cardiac pacemaker plastic support comprises a first plastic support, a second plastic support, a third plastic support and a fourth plastic support. According to the injection mold for the cardiac pacemaker plastic bracket, the first injection molding station and the second injection molding station are arranged, and a first molding assembly of the first injection molding station assembly and a second molding assembly of the second injection molding station assembly can be replaced; when the inner diameters of a first plastic bracket, a second plastic bracket, a third plastic bracket and a fourth plastic bracket of the cardiac pacemaker plastic bracket are changed, a channel forming column, a first inner cavity forming column, a second inner cavity forming column and a third inner cavity forming column are respectively replaced, so that the inner diameters correspond to the required inner diameters, and a whole set of profiling injection molding mold does not need to be replaced; and the range of injection mold processing conditions is widened.

The invention relates to the technical field of wireless electric energy transmission, and particularly discloses a PT symmetric wireless electric energy transmission system for a cardiac pacemaker and a parameter design method, and the system employs an S-0 topology of which a primary side is connected with an adjustable capacitor in series and a secondary side only comprises a coil and a load, and detects the voltage, current and zero phase angle frequency at the primary side in real time. Mutual inductance between coils is identified on line, and a capacitance value is adaptively adjusted according to the mutual inductance, so that the system always works in a PT symmetrical state. According to the system and the parameter design method, any compensation element of the secondary side is not needed, the implantation end is extremely simplified and miniaturized, meanwhile, high stability of output power and transmission efficiency in a wide coupling range is guaranteed, and the position robustness and the overall reliability of the wireless power supply system of the cardiac pacemaker are remarkably improved.

The electrode lead conveying system for facilitating cutting and removing a sheath belongs to the technical field of cardiac pacemaker implantation, and comprises a conveying carrier with a shell and a movable sheath seat, a cutting assembly movably arranged in the shell, and a driving handle movably arranged on the shell and below the sheath seat. A rotatable clamping piece is arranged in the sheath seat. A plow-shaped cutting edge is arranged on the cutting assembly and faces the sheath seat. The driving handle is in transmission connection with the clamping piece and the cutting assembly. When the driving handle moves, the clamping piece can drive the sheath to be radially abutted against the inner wall of the through hole, so that the sheath seat can drive the sheath to move synchronously, and the cutting edge can be synchronously driven to be higher than the electrode lead in the sheath by at least one sheath wall thickness and lower than the electrode lead in the sheath. The sheath seat can be driven by the clamping piece to move towards the direction close to the cutting edge, so that the cutting edge cuts into the end of the sheath to realize the cutting and removal of the sheath. The operation can be performed by one hand, and the operation is simple, stable, difficult and low-risk.

The present biological electrode includes a conductive fabric (2) formed of base fibers which are filled with a conductor and / or to which the conductor is adhered, a thin metallic wire (3) formed into a spiral shape and connected with the conductive fabric (2) at a distal end of the thin metallic wire, and a filling material (5) with which a gap between the conductive fabric (2) and the thin metallic wire (3) is filled and which supports the conductive fabric (2) and the thin metallic wire (3), the conductive fabric (2) is supported in a roll shape, and the conductor is electrically connected with the thin metallic wire (3).

A biostimulator, such as a leadless cardiac pacemaker, having a header assembly that includes an antenna, is described. The antenna can be integrated into an insulator that separates an electrode of the header assembly from a flange of the header assembly. The antenna includes an antenna loop embedded in a ceramic material of the insulator. The antenna loop is located distal to the flange to reduce the likelihood of signal interference and increase communication range of the antenna. The header assembly is mounted on a housing have an electronics compartment, and an antenna lead extends from the antenna loop to electronic circuitry contained within the electronics compartment. Other embodiments are also described and claimed.

The utility model discloses a cardiac pacemaker electrode lead signal adapter, which belongs to the technical field of medical instruments and particularly comprises a sleeve and a forceps holder seat. An anode wiring assembly and a cathode wiring assembly which are used for being connected with an anode column and a cathode column of a cardiac pacemaker electrode wire and can rotate are arranged in the sleeve. And two conducting strips are fixed on the forceps holder seat and are electrically connected with the anode wiring assembly and the cathode wiring assembly respectively. According to the utility model, the electrode terminal of the electrode lead is connected in a plugging manner, and the 360-degree unobstructed rotation design of the cathode wiring assembly and the anode wiring assembly and the independently arranged wire clamp mechanism are matched, so that the unobstructed rotation of the electrode lead can be ensured, and the rotation of the electrode lead can be ensured during the rotation process. And the cathode column and the anode column can always keep stable signal connection with the adapter, so that the detection instrument can continuously display electrode signals in real time, and the installation efficiency and accuracy of the cardiac pacemaker electrode lead are improved.

This invention relates to an energy harvester (7) and charger (1) system that utilizes rotating magnetic field technology to meet the energy needs of biomedical devices that are implantable into the body by a minimally invasive method. This technology aiming to solve the problem of battery depletion in devices such as pacemakers will significantly reduce the dependence on surgical interventions. The charger (1), electric motor (3), and permanent magnets (6) provide the energy harvester (7) with a variable magnetic field. The energy harvester (7) converts alternating current into direct current by generating electric current in its coil / coils (8) with this magnetic field. The generated energy is stored in a rechargeable battery (12) in accordance with the levels required by biomedical devices. The system works with low-frequency magnetic fields to keep SAR values within safe limits and minimizes negative effects such as tissue heating. It also ensures efficient energy production. The materials used in the energy harvester are biocompatible and toxic effects are avoided. The invention reduces the risks of surgery and increases patient comfort with its minimally invasive nature. It provides economic and health advantages by reducing the frequency of battery replacement of implantable devices such as pacemakers. It can also be used in other biomedical devices such as defibrillators, neurostimulators, cochlear implants, and retinal implants.

The utility model discloses a pressure measuring device at the head end of an intraoperative lead-free cardiac pacemaker sheathing canal. The pressure measuring device comprises the lead-free cardiac pacemaker sheathing canal and a pressure measuring module, the lead-free pacemaker sheathing canal comprises a cylindrical head end, and the head end comprises an end face, an outer side face and an inner side face. The pressure measurement module comprises a pressure monitoring sensing unit, a signal processing transmission unit, a power supply unit and a flexible packaging layer, and the flexible packaging layer wraps the pressure monitoring sensing unit, the signal processing transmission unit and the power supply unit and enables the pressure measurement module to be fixed to the head end; the pressure monitoring sensing unit is located on the end face and is matched with the end face in shape. The signal processing transmission unit and the power supply unit are located on the outer side face and are matched with the outer side face in shape. The pressure monitoring sensing unit is configured to monitor a pressure signal of an end face, and the signal processing and transmitting unit is configured to process the pressure signal and transmit the pressure signal to the outside in a wireless mode. Therefore, the change data of the head end pressure in the operation process of the lead-free pacemaker sheathing canal can be monitored in real time and wirelessly transmitted.

A biostimulator, such as a leadless cardiac pacemaker, including a fixation element to engage tissue and one or more backstop elements to resist back-out from the tissue, is described. The fixation element can be mounted on a housing of the biostimulator such that a helix of the fixation element extends distally to a leading point. The leading point can be located on a distal face of the helix at a position that is proximal from a center of the distal face. The backstop elements can include non-metallic filaments, such as sutures, or can include a pinch point of the biostimulator. The backstop features can grip the tissue to prevent unscrewing of the fixation element. Other embodiments are also described and claimed.

To provide a flush toilet bowl device in which personal authentication is prevented from mistakenly performed, a noise risk with respect to a cardiac pacemaker is suppressed, and, upon a user siting on a toilet seat, measurement of biological information starts immediately.SOLUTION: The flush toilet bowl device according to the present invention includes: biological information measurement devices 6 for measuring biological information from excrement; a personal authentication device 8 for performing personal authentication; a human detection sensor 44 for detecting whether or not there is a user within a first detection range A; and an RFID reader 56 for detecting personal information of a user within a second detection range B. The first detection range A is set to be wider than the second detection range B. When the human detection sensor 44 detects the user within the first detection range A, a control part 32 actuates the biological information measurement devices 6 to execute measurement preparation. When the RFID reader 56 detects the personal information of the user within the second detection range B, the control part 32 actuates the personal authentication device 8 to execute personal authentication.SELECTED DRAWING: Figure 4