nullCardiac PacemakerCardiac Pacemakerfaculty adviser: Liu Peng
lecturer: Chen Lannullcataloguenull Cardiac pacemaker constitute and principleCardiac pacemaker is a electronic instrument that can move into intra-individual. Through the pulse generator electrical impulses, via the conductive wire electrode conduction, stimulating electrode contact by the heart muscle,make the heart excited and contraction.
Pulse generator pulsecurrentwires and electrodesheart musclelocal myocardial cells exciteintercellular gap junctions 、
intercalated disc connectionsurrounding myocardium
conductionatrial or ventricular excite,
produce contractionnullCardiac pacemaker constitute and principlelePacemaker system composition
Pulse generator + electrode wires.
Pacemaker is mainly composed of power supply (i.e. batteries, now main use lithium battery - iodine) and the electronic circuit process, can generate and output electrical pulse.
Electrode conductor is the conductive wire with insulation wrapped outside, its function is to transfer the electrical impulses of the pacemaker to the heart, and the lumen electrocardiogram transmitted to the pacemaker of the heart of the sensing line
null Move to artificial heart pacemaker system
Temporary cardiac pacing
percutaneous pacemaker, approved by esophageal pacemaker, the chest wall puncture pacemaker, open chest epicardial pacemaker and transvenous pacemaker.
Permanent pacemaker
At present, most of the use of the endocardial electrode wires. Technical points including vein selection, fixed and pacemaker wire electrode embedment。nullPermanent cardiac pacemaker complicationsPermanent pacemaker complications
Implant surgery related complications
arrhythmia
local bleeding
cardiac perforation
infection
the diaphragmatic muscle stimulationnull
Permanent cardiac pacemaker complications
the complications related to the electrode wire and treatment measure
Threshold increasing
Electrode dislocation and micro dislocation
Electrode wire broken or insulating layer breakdownnull
Permanent cardiac pacemaker complications
the complications related to the pacemaker system and treatment measure
Pacemaker syndrome(PMS)
Pacemaker mediated tachycardia (PMT) It is safe to Install pacemaker.
The overall incidence of it is only about 1%。
If it can be standardized treatment and regular follow-up, benefit is far greater than its disadvantages.
The safety of the pacemaker It is safe to Install pacemaker.
The overall incidence of it is only about 1%。
If it can be standardized treatment and regular follow-up, benefit is far greater than its disadvantages.null The development of the in vitro cardiac pacemaker The development of in vitro pacemaker is in keeping with the national conditions of our country.
In vitro pacemaker shape and size like a pack of cigarettes. Putting on the patient's chest wall, in vitro pacemaker can produce 1 ~ 2 Gs electromagnetic field.
It can be used in the bath, swimming, and physical exercise。
If there is no switch electromagnetic valve Y111 or switch is not complete, that will cause the calibration without oxygen or in pure oxygen into the air, causing calibration gas is not pure, eventually leading to oxygen monitoring is not allowed.null
The reason of cardiac pacemaker replacement
clinical data:
This group of 30 cases, male 18 patients, 12 cases were female; Age from 20 to 88; 26 cases replace 1 times,3 cases replace 2 times,1 case replace 3 times;
Pacemaker operating life:Battery depletion 23 cases,battery depletion in advance 4 cases, infection 2cases, Wire electrode dislocation 2 cases , rejection reaction 2 cases , rejection reaction 1 cases, Pacemaker malfunction 1 cases.
analysis of causes :
The depletion of the battery ;
infection ;
Wire electrode dislocation Need
Using the built-in battery as a power source, this battery always have 5 ~ 10 years of working life Cardiac pacemaker with wireless charging systemNeed
Using the built-in battery as a power source, this battery always have 5 ~ 10 years of working lifeDesign Cardiac pacemaker with wireless charging systemDesignThe wireless transmitter
divide into three parts:
oscillating circuit
amplification circuit
the main coil
The receiving terminal divide into three parts:
Rechargeable electric road
rectifying circuit
secondary coilnull 心脏起搏器用无线充电系统null 心脏起搏器用无线充电系统null I hope a pacemaker popularization and application can extend more lives;
I hope that wireless charging technology innovation can bring more convenience to the patient.Classmates and teachers, please correct me criticism!Thank you!
Classmates and teachers, please correct me criticism!