9 results about "Implantable cardiac pacemaker" patented technology

The utility model discloses an implantable cardiac pacemaker electrode lead fixing structure, which belongs to the technical field of medical instruments and comprises a connecting shell fixedly assembled with a pulse generator and an electrode lead body used for conducting electric pulses. The center of the butt-joint plate abuts against the end of the electrode wire body, a fixing piece for clamping the top end of the electrode wire body is installed at the top of the butt-joint plate, and an elastic telescopic piece for assisting in fixing the electrode wire body is installed at the bottom of the baffle. The fixing piece comprises a plurality of sets of sliding grooves which are formed in the butt joint plate and circumferentially arranged around the central axis of the butt joint plate at equal intervals, and L-shaped clamping rods are installed in each set of sliding grooves in a sliding mode. The practical operation in the operation process is not facilitated.

The utility model relates to the technical field of electrode leads, in particular to an implantable cardiac pacemaker electrode lead. The implantable cardiac pacemaker electrode lead comprises a catheter, a catheter separation layer which divides the interior of the catheter into two cavities is arranged in the catheter, a first spiral is arranged in one cavity, a second spiral is arranged in the other cavity, a first insulating tube is arranged on the outer side of the first spiral, and a second insulating tube is arranged on the outer side of the second spiral. One end of the screw I is welded with the connecting ring I, the other end of the screw I is welded with the cathode, one end of the screw II is welded with the connecting ring II, the other end of the screw II is welded with the anode, the welding part of one end of the screw I and the connecting ring I is provided with a sealing ring I, the welding part of the other end of the screw I and the cathode is provided with barbs, and the welding part of one end of the screw II and the connecting ring II is provided with a sealing ring II. The first connecting ring, the second connecting ring, the cathode and the anode of the implantable cardiac pacemaker electrode wire are not changed, the catheter structure and the spiral structure are changed, the catheter separation layer is additionally arranged in the middle of the catheter, the first spiral and the second spiral can be effectively separated, and the safety and stability performance is improved.

The invention relates to the technical field of cardiac pacemakers, and particularly discloses an implantable cardiac pacemaker array type multi-excitation IPT wireless energy supply system and a mutual inductance analysis model and a transmission efficiency and output power analysis model thereof. According to the mutual inductance analysis model disclosed by the invention, an output power analysis model and a transmission efficiency analysis model of the IPT system are further constructed by analyzing the mutual inductance condition between the coils. According to the invention, the model enables the electric energy to be effectively transmitted in a relatively long distance and a complex human tissue environment, achieves the flexible control of the energy transmission, can adjust the working state of the transmitting coil according to the demands of the pacemaker, improves the transmission efficiency of the electric energy, and improves the reliability of the pacemaker. And the service life of the system is prolonged. Meanwhile, the technology also enhances the adjustable degree of the coupling coefficient, and optimizes the coupling effect by adjusting the coil parameters, thereby improving the energy transmission efficiency, and guaranteeing the stable operation of the cardiac pacemaker.

The utility model relates to the technical field of cardiac pacemakers, and discloses an impact resistance test device for an implantable cardiac pacemaker, which comprises a base, the top of which is fixedly provided with a mounting rack. The limiting seat and the display part are fixedly mounted on one side of the mounting frame, one end of the sliding column is fixedly mounted on the base, the other end of the sliding column is fixedly mounted on the mounting frame, and positioning plates used for positioning are fixedly mounted on the two sides of the mounting frame. According to the impact resistance test device for the implantable cardiac pacemaker, through the design of a positioning groove and a positioning sleeve, when a supporting plate is installed, the supporting plate can be clamped into the positioning groove through the positioning sleeve and matched with an upper installation frame, the supporting plate can be rapidly installed, meanwhile, a supporting effect can be achieved on a placement plate, and the practicability of the supporting plate can be improved; when testing is carried out, the sliding sleeve can be in contact with the spring, a buffering effect can be achieved, the sliding sleeve can be prevented from directly impacting the position over the limiting plate, and the situation that the service life of the limiting plate is short is avoided.

The invention discloses a flexible metamaterial array optimization method for an implantable cardiac pacemaker wireless energy supply system, and belongs to the field of metamaterial optimization design, and the optimization steps are as follows: S1, presetting the size and bending angle of a flexible metamaterial element, and comparing the offset degrees of resonance points of four metal spiral coils at different bending angles to obtain a flexible metamaterial array; determining an optimal shape; s2, analyzing the change of the transmission efficiency when the flexible metamaterial elements with different turns have regular deformation, and optimizing the turns of the metal spirals; s3, determining the optimal line width by taking the minimum insertion loss brought by introduction of the flexible metamaterial as a principle; s4, optimizing the turn spacing of the metal spirals under the condition that the flexible metamaterial design meets the optimal primitive quality factor; s5, optimizing the arrangement mode of the elements in the flexible metamaterial array according to the negative refractive power of the elements with different negative magnetic conductivities; by adopting the optimization mode, the flexible metamaterial array for the wireless energy supply system of the implantable cardiac pacemaker is designed, and the transmission performance of the system is improved.

The invention relates to the technical field of cardiac pacemaker wireless charging, in particular to an implantable cardiac pacemaker wireless charging system which comprises a wireless charging management platform, a charging information base, a stable performance analysis unit, an induction supervision unit, an induction charging evaluation unit, a side charging self-checking unit and a charging management unit. According to the invention, the external charging end of the cardiac pacemaker is preliminarily analyzed to ensure the charging stability and safety of the cardiac pacemaker, and the sensing state information is further subjected to dynamic charging safety supervision, evaluation and analysis in a deep manner to ensure the continuous and stable charging performance of the cardiac pacemaker. And analysis is carried out from two points of charging characteristics and side user states in an information feedback mode, so that on one hand, the overall reliability of the cardiac pacemaker in the charging period can be known, and on the other hand, reasonable and targeted management of cardiac pacemaker charging can be carried out, and potential risks of the cardiac pacemaker in the charging period can be reduced.

The invention discloses a cardiac pacemaker wireless energy supply system based on a three-dimensional mixed magnetic conductivity metamaterial. The method comprises the following steps: determining geometric parameters of a three-dimensional mixed magnetic conductivity metamaterial element according to the geometric shape of an implantable cardiac pacemaker; optimizing the thickness of the substrate and the number of turns of the coil according to the transmission efficiency of the system; determining the external lumped capacitance and verifying the negative magnetic conductivity characteristic of the electromagnetic metamaterial; four meta-materials with near-zero magnetic conductivity are placed on the periphery of a transmitting coil, a negative magnetic meta-material is placed between the transmitting coil and a receiving coil, and the negative magnetic meta-material and the meta-materials with near-zero magnetic conductivity are combined to form a cubic three-dimensional mixed magnetic conductivity meta-material. By means of the design method, efficient magnetic field convergence and magnetic leakage shielding of the wireless energy supply system of the implantable cardiac pacemaker can be achieved, and wireless energy supply development of implantable devices is promoted.