208 results about "Pace maker" patented technology

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.

The invention relates in some aspects to a device for use in anchoring an implant, including anchors, sutures, implants, clips, tools, lassos, and methods of anchoring among other methods. Anchors as disclosed herein could be utilized to secure a coaptation assistance device, an annuloplasty ring, an artificial valve, cardiac patch, sensor, pacemaker, or other implants. The implant could be a mitral valve ring or artificial mitral valve in some embodiments.

The invention discloses an external diaphragm pacemaker regulation and control method and device based on a respiratory radar. The method comprises the following steps: acquiring a chest radar echo signal of a target; analyzing the radar echo signal to obtain a target breathing signal; analyzing the target breathing signal to obtain breathing parameters, and generating a synchronizing signal; the treatment parameters are adjusted by adopting the breathing parameters and the synchronizing signals; the treatment parameters are adopted to output control signals; and regulating and controlling the external diaphragm pacemaker based on the control signal. The breathing state of the target is detected and sensed in real time through the breathing radar, key parameters are extracted, and the opportunity and intensity of electrical stimulation are dynamically adjusted based on the key parameters, so that personalized synchronization with the natural breathing rhythm is realized, and the treatment efficiency and the user comfort are improved.

The utility model relates to the technical field of medical instruments, in particular to a pacemaker electrode wire, which comprises a wire conduit, the wire conduit comprises a head part and a tail part which are connected with each other, the head part is provided with an electrode assembly, and the electrode assembly comprises a first electrode and a second electrode which are electrically connected with each other. The first electrode and the second electrode are arranged in a spaced mode in the direction from the head to the tail, and a fixing piece located between the first electrode and the second electrode is arranged on the outer side of the wire conduit. The head of the wire conduit can be sent to the right ventricular apex of the heart of a patient through vein puncture, and the fixing piece is in contact with and fixed to the surface of the endocardium, so that the first electrode is firmly fixed to the right ventricular apex, the electrode wire is kept stable in the heart of the patient, and the electrode wire is prevented from shifting or falling off; and the normal cardiac function of the patient is ensured.

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 utility model provides a wireless and rechargeable bladder pacemaker for monitoring bladder capacity, and relates to the field of medical instruments. The utility model provides a wireless and rechargeable bladder pacemaker for monitoring bladder capacity. The wireless and rechargeable bladder pacemaker comprises a rechargeable current stimulator, a plurality of groups of stimulation mechanisms and a plurality of piezoelectric films, wherein each group of stimulation mechanism comprises two bladder stimulation units; the bladder stimulation unit and the piezoelectric film are respectively connected with the current stimulator through leads; the two bladder stimulation units and the current stimulator in each group of stimulation mechanism are arranged on the surface of the bladder, and the piezoelectric film is arranged in the wall of the bladder. According to the utility model, the volume of liquid in the bladder of a patient can be obtained in real time, the bladder detrusor muscle can be stimulated and induced to contract to complete urination, and most importantly, the stimulation and induction mode of the bladder detrusor muscle does not need the participation of human body movement efferent nerves; the piezoelectric film can convert contraction tension or expansion tension of the bladder wall into electric energy to supply power to the current stimulator.

This utility model relates to the field of chest compression technology, specifically a chest compression device with a chest strap. One end of the chest strap is fixedly connected to an elastic band. A compression mechanism is located on the left side of the front of the chest strap to facilitate compression of the patient's wound. The compression mechanism includes an observation hole ring, a lower transparent membrane, an observation ring, an upper perforated transparent membrane, and a zipper. An installation window is provided on the front of the chest strap, facing the inner hole of the observation hole ring, which is installed on the outside of the installation window. The lower transparent membrane is fixedly connected to the inside of the observation hole ring, and the upper perforated transparent membrane is fixedly connected to the inside of the observation ring. The observation ring is located on the outside of the observation hole ring, and the chest strap and the observation ring are detachably connected via a zipper. A sandbag is clamped between the upper and lower perforated transparent membranes. This device facilitates the switching between compression of the chest wound after pacemaker surgery and postoperative wound observation.

The present invention is related to an extracardiac temporary pacemaker designed for cardiac pacing, particularly for high-grade atrioventricular block and prolonged sinus pauses. The device integrates a pacemaker unit with battery within a transcutaneous patch, featuring thin, needle-like electrodes that penetrate the intercostal muscles to reach the epicardial surface of the heart. The design allows for rapid, significantly reducing the risk of complications associated with traditional intravascular pacemakers and providing a quick, safe, and more efficient solution for temporary cardiac pacing.

This invention discloses an online ECG control method and device for a pacemaker, relating to the field of medical device technology. The method includes: synchronously acquiring raw ECG and transient impedance signals; establishing an artifact waveform model based on impedance attenuation characteristics; removing pacing pulse artifacts; reconstructing a clean ECG signal and marking the capture state; extracting signal waveform features to construct a time-series matrix; inputting it into a pre-trained time-series prediction model to obtain future heart rate trajectories and arrhythmia risk probabilities; constructing a cost function including physiological comfort, safety penalties, and energy efficiency indicators; solving for the optimal pacing parameter vector using the gradient projection method; and driving the pacing circuit to output pulses. This invention effectively solves the artifact interference problem, achieving precise adaptive pacing control based on risk prediction and multi-objective optimization, significantly improving treatment safety and patient comfort.

A stabilizer sleeve is disclosed for use with cardiac implantable electronic device leads. The sleeve comprises a tubular body sized to receive the lead and shaped to bias the lead toward a desired anatomical location, thereby reducing migration, dislodgement, and interference with cardiac structures. The sleeve may be introduced with the lead as a unitary assembly or added after lead placement. Various embodiments include a slitted body for expansion, radiopaque markers for visualization, detachable nose-cone tips for guidewire tracking, and antimicrobial coatings. The sleeve may be formed of polymers, alloys, or composite materials, and may include features such as texturing or anchoring projections for tissue engagement. Applications include positioning within a tricuspid valve commissure to minimize regurgitation and stabilizing left ventricular leads within branches of the coronary sinus. The device and methods described provide improved long-term stability and performance of implanted cardiac leads.

1. The name of the design product: emergency rescue public station. 2. The use of the design product: for storing pacemakers, stretcher management emergency equipment, and also playing rescue-related videos, selling emergency or other goods. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model discloses a fixing strap for a temporary pacemaker, which comprises a shoulder strap and a binding strap, an extension bag is sewed below the shoulder strap, a zipper is sewed on the surface of the extension bag, a weight is stored in the extension bag, and a binding surface is arranged at the bottom end of the extension bag; a traction piece is arranged on the surface of the extension bag and used for changing the position of the extension bag, and the fixing band is used in cooperation with the fixing band at the position, close to the apex of the right ventricle, of the extension bag after being worn, so that the fixing band can keep a good attaching effect whether daily activities or mild exercises are carried out; and the risk of complications caused by displacement of the pacemaker or poor contact of the electrodes is reduced. The bonding head is bonded to the bonding female end area by pulling the traction belt, it can be ensured that the position of the extension bag after adjustment is kept stable, that is, the position of the extension bag is changed through traction of the traction belt, and the position of the extension bag is accurately adjusted.

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.

The invention relates in some aspects to a device for use in anchoring an implant, including anchors, sutures, implants, clips, tools, lassos, and methods of anchoring among other methods. Anchors as disclosed herein could be utilized to secure a coaptation assistance device, an annuloplasty ring, an artificial valve, cardiac patch, sensor, pacemaker, or other implants. The implant could be a mitral valve ring or artificial mitral valve in some embodiments.

The utility model relates to the technical field of medical instruments, in particular to a temporary pacemaker electrode fixing device which comprises a connecting seat, a rolling cavity arranged at the top of the connecting seat and an end cover used for closing the rolling cavity, and a positioning piece and a winding assembly arranged in the rolling cavity. An electrode wire is connected with the winding assembly through the positioning piece, and the winding assembly is used for winding the electrode wire; wherein a fixing structure is arranged on the back face of the connecting base and used for fixing the connecting base to a limb or a sickbed armrest, the middle of an electrode wire is connected with the wrapping post through a wire clamping groove under the positioning effect of the positioning piece, and then the wrapping post is unlocked by pressing the unlocking piece. When the electrode wire is wound, the winding column can be rotated to drive the electrode wire to be wound, then the winding column is fixed through the unlocking piece, the winding column is matched with the positioning piece to wind and fix the electrode wire, and the connecting base can be fixed to a limb or a sickbed handrail through a pair of fixing belts and an elastic piece.

Dual chamber leadless pacemaker systems comprising an aLP and a vLP, and methods for use therewith, are disclosed. Such systems and methods can detect and terminate pacemaker mediated tachycardia (PMT) even when the implant-to-implant (i2i) communication from the vLP to aLP (V2A) is compromised. The vLP monitors for PMT in response to reception of an i2i communication from the aLP indicating compromised V2A i2i communication and initiates, following detection of a PMT, initiate a PMT PV interval in response to reception of an i2i communication from the aLP indicating an atrial sensed event. The PMT PV interval is shorter than a PV interval that the vLP would otherwise use for ventricular pacing if PMT was not detected. The vLP also delivers a ventricular pacing pulse to the ventricular cardiac chamber in response to the PMT PV interval expiring without an intrinsic ventricular event being detected during the PMT PV interval.

The utility model relates to the technical field of pacemaker wire offset distance measuring equipment, and provides an attachable ruler device which comprises release paper and a transfer sticker, the transfer sticker is pasted on the release paper, the transfer sticker is used for being pasted on dressing on a pacemaker wire, the transfer sticker comprises a transverse scale part, and the transverse scale part is provided with a plurality of scales. The transverse scale part comprises a plurality of transverse scale lines which are arranged at intervals along a straight line, and the transverse scale part is used for measuring the displacement distance of a lead of the pacemaker. According to the utility model, through the arrangement of the transfer paste capable of transferring the transverse scale part to the dressing, the transfer paste is clearer and more difficult to erase compared with marking on the dressing, and when the lead offset distance of the pacemaker is measured, a user does not need to hold the graduated scale by hand and can directly observe the lead offset distance through the transverse scale part on the dressing, so that errors caused by hand shaking during measurement are avoided.

Resorbable implants comprising poly(butylene succinate) and copolymers thereof have been developed. The implants implants are preferably sterilized, and contain less than 20 endotoxin units per device as determined by the limulus amebocyte lysate (LAL) assay, and are particularly suitable for use in procedures where prolonged strength retention is necessary, and can include one or more bioactive agents. The implants may be made from fibers and meshes of poly(butylene succinate) and copolymers thereof, or by 3d printing, and the fibers may be oriented. Coverings and receptacles made from forms of poly(butylene succinate) and copolymers thereof have also been developed for use with cardiac rhythm management devices and other implantable devices. These coverings and receptacles may be used to hold, or partially / fully cover, devices such as pacemakers and neurostimulators. The coverings and receptacles are made from meshes, webs, lattices, non-wovens, films, fibers, and foams, and contain antibiotics such as rifampin and minocycline.

This invention discloses a pacemaker for stimulation‎ for a subject, comprising a phototransistor; and first and second electrodes, each electrode having a first end electrically connected to the phototransistor and a second end in communication with a target tissue of the subject for the stimulation‎. The pacemaker is self-powered with an optical control mechanism, wherein the first and second electrodes serve as both battery electrodes and pacing electrodes. The pacemaker is optically controlled by a wearable device that monitors physiological parameters and provides closed-loop, on-demand operation of the implantable pacemaker.

The invention belongs to the technical field of medical instruments, and particularly discloses a lead-free electrophysiological pacemaker device for cardiology department, which comprises a pacemaker main body, one end of the pacemaker main body is provided with an adjusting mechanism, one end of the adjusting mechanism is provided with a pasting mechanism, the adjusting mechanism comprises a connecting frame fixedly arranged at one end of the pacemaker main body, and the connecting frame is fixedly connected with the pacemaker main body. A connecting block is movably arranged on the inner side of the connecting frame, a supporting block is fixedly arranged at one end of the connecting block, a limiting ring is fixedly arranged at the other end of the supporting block, a limiting block is fixedly arranged on the inner wall of the inner side of the limiting ring, and a limiting shaft is movably arranged on the inner side of the limiting ring. Through cooperation of the adjusting mechanism and the pasting mechanism, the pacemaker body can be conveniently pasted to the chest of a patient, winding of adhesive tape is reduced, and the whole device is easy to operate.

A laryngeal pacemaker is configured for external placement on skin of a patient to produce respiration stimulation signals. An implantable stimulation electrode delivers the respiration stimulation signals to adjacent target neural tissue for vocal fold abduction during respiration of the recipient patient. A triaxial accelerometer produces a body motion signal reflecting energy expenditure of the recipient patient. A respiration sensor includes a flexible skin-transferrable printed tattoo electrode having a tetrapolar configuration for impedance pneumography measurement to produce a sensed respiration signal for the laryngeal pacemaker. The respiration sensor is configured for transfer and release by guided placement from a sensor applicator to the skin at the angulus sterni of the recipient patient. And the laryngeal pacemaker is configured to interpret the body motion signal and the sensed respiration signal to make a real time determination of respiratory phase and frequency for adaptively adjusting the respiration stimulation signals accordingly.

An installation opening is formed in one side of the front face of a hospital gown body, a fixing piece is arranged on the installation opening, a connecting buckle sleeve is arranged on the fixing piece, an annular chest strap is arranged on the hospital gown body, and the annular chest strap penetrates through the connecting buckle sleeve and can be fixed to the body of a patient in a surrounding mode. A fixing structure is arranged at the bottom of the fixing part, a mounting hole is formed in the middle of the fixing part, an annular connecting part is arranged on the mounting hole in the circumferential direction, a circular mounting part is mounted on the annular connecting part, a pressing air bag is arranged on the circular mounting part, and an inflation and deflation connector is arranged on the pressing air bag. According to the special pacemaker postoperative hospital gown, a patient can wear the hospital gown body on the body, the fixing piece is fixed to the body of the patient through the fixing structure and the annular chest strap, the fixing piece is fixed and corresponds to a wound of the patient, and then the pressing air bag is inflated to press and stop bleeding of the wound of the patient.

The present application relates to the technical field of medical treatment, and in particular to a stimulation system for treating a tremor, and an action method and a stimulation parameter adjustment method. The stimulation system comprises: an execution part, which is used for applying to at least one target position of a human body a target stimulation action for treating a tremor; a collection part, which is used for collecting a movement state signal of at least one target position of the human body and collecting motor cortex electrocorticogram of the human body; and a control part, which generates target stimulation parameters on the basis of the movement state signal and the motor cortex electrocorticogram, and adjusts, on the basis of the target stimulation parameters, the target stimulation action for treating a tremor that is applied by the execution part. Therefore, the problems in the prior art, such as the effect of drug treatment being poor, a brain pacemaker surgery having a high risk, a high cost and a poor safety, and vibrating gloves treatment having poor comfort and user-friendliness and thus affecting normal daily life of patients, are solved.

An implantable medical device system includes an extracardiac sensing device and an intracardiac pacemaker. The sensing device senses a P-wave attendant to an atrial depolarization of the heart via housing-based electrodes carried by the sensing device when the sensing device is implanted outside the cardiovascular system and sends a trigger signal to the intracardiac pacemaker in response to sensing the P-wave. The intracardiac pacemaker detects the trigger signal and schedules a ventricular pacing pulse in response to the detected trigger signal.

A temporary pacemaker electrode catheter adapter comprises an adapter module and a permanent pacemaker cable. One side of the connector module is provided with first and second connector needle insertion ports for temporary pacemaker electrode catheters, the first connector needle insertion port comprises an anode elastic sheet made of a conductive material, the second connector needle insertion port comprises a cathode elastic sheet made of a conductive material, and the anode and the cathode elastic sheet are electrically connected to an anode wire and a cathode wire respectively; the anode wire and the cathode wire extend into the permanent pacemaker cable from the joint module, the cable tail ends, extending to one end, opposite to the joint module, of the permanent pacemaker cable are electrically connected with the annular anode electrode and the rod-shaped cathode electrode respectively, and the cable tail ends are used for being inserted into a permanent pacemaker; when the connector needles of the temporary pacemaker electrode catheter are respectively inserted into the first connector needle insertion port and the second connector needle insertion port, and the tail end of the cable is inserted into the permanent pacemaker, stable electric connection between the temporary pacemaker electrode catheter and the permanent pacemaker can be realized.

A simulator apparatus for training medical professionals in various procedures involving the human clavicle and heart. The apparatus includes a clavicle model and a heart model. The clavicle model simulates a partial or full human shoulder and neck. The heart model simulates the human heart. The models may be used separately or together to practice procedures, namely inserting a central line and placing a pacemaker through a central line. The purpose of the simulator is to provide a user with a cost-effective, portable training simulator to practice performing procedures involving the shoulder, neck, and heart.

A retrieval docking component includes a base and a limiting part. A distal end of the base along an axial direction is configured for connection with a body of an implantable medical device, and a proximal end of the base along an axial direction is connected to the limiting part. A radial outer dimension of the limiting part is greater than a radial outer dimension of the proximal end of the base. The limiting part includes at least two accommodation grooves along its circumference, which are open outwardly in radial direction of the limiting part and configured for capture a snare of a delivery device. The structure of the retrieval docking component provides adequate and reasonable accommodation space to the retrieval snare in a limited space, enabling the delivery device conveniently and reliably form a connection with the retrieval docking component, increasing success rate of retrieval and docking.

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.

The disclosure relates to heart valve prostheses with the reduced need of pacemaker implantation and / or improved means for positioning the replacement heart valve. A heart valve prosthesis is provided with a stent and at least one locator. The locator has an adapted design for positioning within a cusp of the native aortic valve for implantation at the native heart valve site. Placement of the locators within the cusps preferably prevents movement from the native heart valve site post-implantation, including proximal movement of the prosthesis into the left ventricle.