31 results about "Pacemaker implantation" patented technology

The present invention provides advancements in the art of cardiac pacemakers. The invention provides a pacemaker system that comprises at least one pacemaker and that is, to a large extent, self-controlled, allows for long-term implantation in a patient, and minimizes current inconveniences and problems associated with battery life. The invention further includes a mechanism in which at least two pacemakers are implanted in a patient, and in which the pacemakers communicate with each other at the time of a given pacing or respiratory event, without any required external input, and adjust pacing parameters to respond to the patient's need for blood flow. The invention further provides a design for a pacemaker in which the pacemaker electrode is connected to the pacemaker body by a lead that is configured to allow the pacemaker to lie parallel to the epicardial surface and to reduce stress on the pacemaker and heart tissue.

The invention discloses a controllable wireless cardiac pacemaker system with multi-electrode pacing, which belongs to the field of electrical stimulation medical devices. The wireless pacemaker system has four or more fixed hooks, the pacing electrode is positioned on the anchoring hooks of the implant device, as long as one of the fixation hooks is punctured in the myocardium, it can function asa pacing. The pacemaker system has an electrode 'compensation' function, and when a single electrode is lost, the other electrode is controlled to be used for pacing without performing a second operation. In addition, the pacemaker system employs a chip (e. g., 74 LS148 and the like.) that can control the number of uses of the electrodes remotely according to the actual clinical situation of thepatient, achieve simultaneous stimulation of the four electrodes, or three electrode stimulation, or both electrode stimulation, or any of the electrode stimulation, and the stimulation intensity is adjustable. The system of the invention increases the probability of the electrode targets to contact the myocardium, reduces the risk of perforation during implantation of the pacemaker, reduces the number of re-implantation of the myocardial necrosis patient, prolongs the service life of the implantation device, and the simulation intensity varies according to patients, and it has great referencevalue and application value to the active implantation device.

The invention provides a conducting-wire-free pacemaker and a conducting-wire-free pacing system. The conducting-wire-free pacemaker uses an umbrella-shaped structural design, and comprises a conducting-wire-free pacing device positioned on the umbrella handle and a support device positioned on the umbrella surface; the support device can fix the conducting-wire-free pacing device onto a specifiedposition; side effects caused by a conventional electrode conducting wire are eliminated. Meanwhile, compared with other conducting-wire-free pacemakers used for the ventriculus dexter (particularlyright ventricular apex), the conducting-wire-free pacemaker has the advantages that the umbrella-shaped structure is used, so that the contact area with the heart tissue is greater; the fixation stability is higher, so that the conducting-wire-free pacemaker can be used in a position of auricula dextra near the sinoatrial node, the pacing sequence better conforming to the physiologic performance can be provided, and the harm to the heart is reduced accordingly. The conducting-wire-free pacing system provided by the invention uses the conducting-wire-free pacemaker; a special conveyor and a guide device are configured for the conducting-wire-free pacemaker, so that the implementation of the conducting-wire-free pacemaker becomes more convenient and more precise.

The invention provides a cathode inward rotating type pacemaker implanting test line. The cathode inward rotating type pacemaker implanting test line comprises test wires including an anode ring testwire, a cathode test wire and a subcutaneous anode test wire, wherein two ends of the anode ring test wire and two ends of the subcutaneous anode test wire are fixedly connected with crocodile clips;one end of the cathode test wire is fixedly connected with a crocodile clip, and the other end is fixedly connected with a rotatable cathode clip. The cathode inward rotating type pacemaker implantingtest line is simple in structure and convenient to use, the cathode clip not only can fix a cathode at an electrode end of a 3830 (Select Secure 3830 from Medtronic company) pacing electrode lead, but also can rotate with the cathode, so that a surgeon can monitor electrode impedance change and in-cavity ECG pattern change in a screw-in process of the cathode end of a pacing electrode in real time in a pacing state or the in-cavity ECG pattern change in a non-pacing state.

The invention provides a wire-free pacemaker, which comprises a wire-free pace-making device and a supporting portion. The supporting portion is arranged on the head portion of the wire-free pace-making device and at least partially surrounds the head end of the wire-free pace-making device. The head end of the supporting portion is released and expanded relative to the head end of the wire-free pace-making device. When the wire-free pacemaker is released to an appointed position, the head end of the supporting portion is provided with an acting point for abutting against the appointed position. Therefore, after the wire-free pacemaker is implanted at an appointed position in a heart, the head end of the supporting portion abutting against the cardiac muscle increases the force bearing point and even the stress area of the cardiac muscle to buffer cardiac muscle stress caused by gravity of the wire-free pacemaker, and accordingly the acting force applied to unit area of the cardiac muscle is reduced, and the problem of cardiac muscle perforation is avoided.

The invention discloses a pacemaker implantation headrest. The pacemaker implantation headrest comprises a base; the base is welded with a support rack, which is composed of two support rods and a top plate with a bending unit, the middle of the top plate is provided with a mounting case, the top of the mounting case is provided with an oxygen pipe connector, the bottom of the mounting case is embedded with an oxygen mask, and the oxygen mask and the oxygen pipe connector are connected through a hose; the side edges of the two support rods are provided with slides, the two support rods are connected with an adjusting plate through locking nuts which penetrate through the slides; the side of the adjusting plate is provided with a threaded hole inside which a bolt is threadedly connected, the bottom of the bolt is inserted into a bearing, the bearing is embedded into a bear pedestal in the middle of a fixing block, and a gas bag is adhered to the surface of the adjusting plate. According to the pacemaker implantation headrest, the height of the adjusting plate can be adjusted, the gas bag can serve as a pillow to meet demands of different patients, and the oxygen mask facilitates oxygen respiration of the patients, so that multifunction can be achieved. Meanwhile, the pacemaker implantation headrest can be conveniently fixed onto a hospital bed and is high in practicality.

The invention discloses a reverse-wearing type patient garment for a pacemaker implantation patient and relates to the technical field of production of reverse-wearing type patient garments for postoperative patients. The reverse-wearing type patient garment is characterized in that a front piece, a rear left piece and a rear right piece are sewn to form a garment body, a left sleeve and a right sleeve are sewn to two sides of the garment body, the front neckline of the front piece and the back neckline of the rear left piece and the rear right piece are concave openings, the front piece at the shoulders on two sides is respectively movably connected with the rear left piece and the rear right piece, and the front fly of the rear left piece is movably connected with the front fly of the rear right piece. The reverse-wearing type patient garment is simple to put on and take off, nursing is facilitated, and patient privacy is protected.

An open coiled pacemaker lead is provided that has improved structural stability and functional life in vivo. The open coiled lead includes an electrically conductive material that is coated or covered by a thin layer of electrically insulative material. The coated coiled lead has adequate spacing between adjacent coils, and has a lumen of sufficient diameter, to allow for infiltration of biological connective tissue onto the surface of the coated coil when maintained in vivo for a sufficient amount of time. Infiltration of the connective tissue essentially uniformly along the entire coiled lead strengthens and lengthens the functional life of the coated coil lead.

The invention relates to the field of medical instruments, and particularly relates to a pacemaker implantation support balloon device. The pacemaker implantation support balloon device comprises a balloon capable of contracting and expanding and a support connected with the balloon, wherein the support is in a hollow tube shape, and the balloon is fixed to one end of the support; and when the pacemaker implantation support balloon device works, the balloon in a contracting state is sent into the right atrium through the support under the guidance of a guide steel wire, and the balloon expands in the right atrium to form support. The pacemaker implantation support balloon device has the advantages that the balloon expands after entering the right atrium to fill the large redundant space in the right atrium, so that a supporting point of opposite force is provided for fixation of a pacing electrode wire, and the implantation efficiency of a pacemaker is effectively improved.

The invention relates to a transcatheter aortic valve replacement (TAVI) postoperative complication prediction method, device and equipment, and belongs to the technical field of postoperative prediction, the method comprises the following steps: acquiring feature data of a target patient, and correspondingly inputting the feature data into a preset TAVI postoperative complication prediction model to obtain a TAVI postoperative complication prediction result of the target patient; the TAVI postoperative complication prediction result comprises a TAVI postoperative pacemaker implantation prediction result and a TAVI postoperative perivalvular leakage prediction result. According to the method, the feature data is obtained from the anatomical indexes under the CT data and is easy to obtain, and compared with a scheme using finite elements, the method is easier to popularize and software; according to the method, the problem of the initial implantation depth of the artificial aortic valve in the release process is concerned, compared with a finite element scheme, only the implantation depth of the artificial valve after the valve is completely released is concerned, the clinical application value is higher, and meanwhile prediction of the clinical outcome is more accurate.

The invention belongs to the field of medical animal experiments and particularly relates to a method and a system for generating an animal heart failure and atrial fibrillation combined model. The method comprises the following steps: a wireless communication connection between a model generation system and a three-cavity pacemaker in an experimental large animal body is established, wherein the three-cavity pacemaker is recycled from a patient with clinical pacemaker implantation; the model generation system receives monitoring signals of atrial electrical activity and ventricular electrical activity sent by the three-cavity pacemaker; and the model generation system extracts data of atrial fibrillation duration time, data of atrial fibrillation load rate and data of intrathoracic impedance from the monitoring signals by adopting a preset signal corresponding relation, and generates an animal heart failure and atrial fibrillation combined model. The method can simply, conveniently and economically construct a stable and reliable heart failure and atrial fibrillation combined model of large animals, and is suitable for animal modeling experiments in medical research.

The invention provides hemostasis equipment and system for a thoracic wall after femoral artery or pacemaker implantation, and the hemostasis equipment and system comprises a U-shaped fixing device which comprises a U-shaped leather sheath; the air bag fixing unit is mounted at the horizontal end of the inner side of the U-shaped leather sheath; the adjusting unit is located in the U-shaped leather sheath and comprises a height adjusting unit located at the U-shaped bottom of the U-shaped leather sheath and a rotation angle adjusting unit located between the height adjusting unit and the air bag fixing unit; through mutual cooperation of the U-shaped fixing device and the external hematoma monitor alarm, the following three effects can be achieved: firstly, the disposable air bag is used as a disposable compression consumable, the inflation amount can be set by a machine according to the condition of a patient, automatic inflation is achieved, and manual inflation is not needed; secondly, whether exudation occurs in a femoral artery or a pacemaker postoperative wound can be monitored, and an alarm is given when exudation occurs; and thirdly, whether the disposable air bag is pressed to leak air or not can be monitored, and an alarm is given when air leakage occurs.

A medical device for treating cardiac rhythm disorders, and a cardiac implantation device and a pacing system. The cardiac implantation device includes: a first connecting member having an end configured to be coupled to a pacemaker; and N support struts, each of the N support struts having a proximal end coupled to the other end of the first connecting member. The support struts are provided thereon with anchor(s) configured to secure during implantation. Distal ends of the support struts are free and are able to radiate outwardly or converge inwardly. The pacing system includes the implantation device and a pacemaker. A leadless pacemaker can be implanted into the superior vena cava in order to achieve atrial sensing and pacing. Moreover, the leadless pacemaker can be more easily retrieved after long-term implantation at a high success rate, promoting the application of leadless pacemakers and enhancing patients' use experience.

The invention discloses a pacemaker implantation auxiliary device, which relates to the technical field of medical instrument assistance, and comprises a bottom plate, a support cylinder is fixedly arranged on the right side of the upper surface of the bottom plate, and a lifting rod is slidably arranged in the support cylinder. According to the pacemaker implantation auxiliary device, the arranged bottom plate supports the supporting cylinder, the lifting rod is in sliding connection with the supporting cylinder, and the lifting rod supports the head supporting block through the supporting rod, so that the position of the head supporting block can be adjusted up and down and front and back; furthermore, the head supporting block can be adjusted to one side where the head of the patient needs to be supported; the inclination degree of the head supporting block can be adjusted by sleeving a supporting rod with a round hole formed in the head supporting block, so that the head supportingblock can be better attached to the head of the patient, the head of the patient can be stably supported, the pain of the patient can be reduced, and the patient can feel comfortable, the shaking ofthe head of the patient due to no support can be avoided, so that the normal surgical operation of medical personnel can be ensured.

The invention relates to the field of postoperative recovery tools, in particular to a cardiac pacemaker implantation postoperative pressure bandage which comprises a mounting shell, a first elastic bandage and a second elastic bandage, inlets are formed in the two side walls of the mounting shell, and clamping mechanisms are arranged on the two sides of the interior of the mounting shell; the two ends of the first elastic bandage are connected with the two clamping mechanisms through the two inlets respectively, extrusion mechanisms are arranged on one sides of the two clamping mechanisms, one ends of the two extrusion mechanisms make contact with the two ends of the first elastic bandage respectively, two openings are formed in the side wall of the mounting shell, and the other ends of the two extrusion mechanisms stretch out of the mounting shell through the two openings respectively. The bandage is very convenient to tighten and loosen, the compression position can be prevented from deviating, the compression effect is ensured, the recovery effect is ensured, the compression strength can be freely adjusted according to the actual conditions of different patients, and the adaptability is higher.

The invention provides a pacemaker implantation testing line with a negative pole and a positive pole capable of rotating at the same time. The testing line comprises testing line bodies. The testingline bodies include the positive electrode ring testing line, the cathode testing line and the subcutaneous positive electrode testing line; the two ends of the subcutaneous positive electrode testingline are each fixedly connected with a crocodile clip; one end of the positive electrode test line is fixedly connected with the crocodile clip, and the other end of the positive electrode test lineis fixedly connected with a negative and positive rotating clip; the crocodile clip is fixedly connected to one end of the positive ring testing line, and the other end is communicated and connected to the rear portion of the negative and positive rotating clip. The pacemaker implantation testing line with the negative pole and the positive pole capable of rotating at the same time is simple in structure and convenient to use, the testing clip can fix negative and positive rings of 3830 (Medtronic company Select Secure 3830) pacemaking electrode wire electrode ends, and can rotate along with the rings, and therefore twisting and knotting are avoided.

According to the present disclosure, a cerclage operation device provided with a position fixing device allows the position of the cerclage operation device, which is used in a heart valve or pacemaker implantation operation, to be fixed to prevent movement of the cerclage operation device and maintain the cerclage operation device at the correct position after the operation so that the effect of treatment lasts and the stability of the operation is improved. The cerclage operation device provided with the position fixing device according to the present disclosure includes a cerclage wire, a coronary sinus tube which is inserted into a coronary sinus and has a lumen formed therein, a tricuspid valve tube which crosses a tricuspid valve and has a lumen formed therein, and the position fixing device which is bonded to one side of an outer circumferential surface of the coronary sinus tube and prevents movement of the coronary sinus tube, wherein the coronary sinus tube and the tricuspid valve tube are coupled to each other at an upper side and separated from each other at a lower side.

The invention provides a traction device for pulling out a temporary cardiac pacemaker wire. The traction device is suitable for being used when a pacemaker wire is pulled out after a patient implanted with a temporary pacemaker after a cardiac surgical operation. The installation of a temporary epicardium pacemaker is widely applied clinically, for example, slow arrhythmia occurs after surgery or the heart rate needs to be increased to improve the hemodynamic effect, and implantation of a temporary endocardium pacemaker fails. The pacemaker wire needs to be pulled out within 2-12 days when the temporary epicardium pacemaker is implanted, and if the pacemaker wire is not pulled out, infection is easily caused, or even a debridement operation is needed. Due to various reasons, the condition that the pacemaker wire cannot be pulled out sometimes still happens. The traction device can effectively solve the problem that the pacemaker wire cannot be pulled out in some operations, and can be used for continuously and slowly pulling the wire; the wire can be slowly pulled out by utilizing puling force and pulling force of the heart; and complications possibly endangering the life of a patient, such as cardiac rupture and pericardium tamponade, which possibly occur when the wire is pulled forcibly, are effectively solved.