Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Double-phase constant-flow type cardiac defibrillator

A defibrillator and heart technology, applied in the direction of cardiac defibrillator, instrument, current collector, etc., can solve the problems of unstable defibrillation waveform, strict technical requirements, myocardial cell damage, etc., and achieve stable and controllable defibrillation current, Improve the release efficiency and ensure the effect of the output waveform

Active Publication Date: 2021-03-02
SHANGHAI UNIV OF MEDICINE & HEALTH SCI
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The early biphasic wave defibrillation has the following defects: under the condition of setting the output energy, the current changes with the patient's impedance, the defibrillation current is lower for patients with high impedance, and the defibrillation current for patients with impedance is larger
[0007] 2. Unstable defibrillation waveform
[0008] 3. If the defibrillation peak current and its rate of change are too large, it is easy to cause skin burns and myocardial cell damage
High-voltage inductors and high-voltage energy storage capacitors are bulky and have strict technical requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double-phase constant-flow type cardiac defibrillator
  • Double-phase constant-flow type cardiac defibrillator
  • Double-phase constant-flow type cardiac defibrillator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] A biphasic constant-current cardiac defibrillator, comprising: a power module 1, the power module 1 is sequentially connected to a charging module 2, an energy storage capacitor 3, a high-frequency converter 4, an H-bridge circuit 5, defibrillation electrodes 6, and an H-bridge The circuit 5 is sequentially connected to the current detection circuit 7, the error amplifier 8, and the high-frequency converter 4;

[0033]The first interfaces of the optocoupler OP1, optocoupler OP2, optocoupler OP3, and optocoupler OP4 in the H bridge circuit 5 and the current detection circuit 7 are respectively grounded, the second interface and the third interface are respectively connected, and the sixth interface Connect with the 7th interface respectively, the 5th interface of OP1, resistor RG1, and the 8th interface of OP1 are connected in series, the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a double-phase constant-current heart defibrillator which comprises a power supply module, the power supply module is sequentially connected with a charging module, an energystorage capacitor, a high-frequency converter, an H-bridge circuit and a defibrillation electrode, and the H-bridge circuit is sequentially connected with a current detection circuit, an error amplifier and a high-frequency converter. The defibrillator can defibrillate after being started, achieves deep negative feedback, reduces the size of a pulse generator, improves the success rate of defibrillation, and is stable and controllable in defibrillation current.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a biphasic constant-current type cardiac defibrillation that can be defibrillated upon startup, has deep negative feedback, reduces the volume of the pulse generator, improves the success rate of defibrillation, and has a stable and controllable defibrillation current. device. Background technique [0002] Ventricular fibrillation refers to the disordered excitation of the ventricle, resulting in the loss of regular and orderly excitation and diastolic and systolic function of the ventricle, which are all functional sudden cardiac arrest (SCA). This means that the person's heart has stopped pumping blood, which is a fatal arrhythmia. Ventricular fibrillation is an extremely chaotic manifestation of the heart's electrical activity and is generally difficult to stop on its own. Defibrillation refers to the simultaneous depolarization and repolarization of all myocardial...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/39G05F1/46G05F1/575H03K7/08H02J7/00H02M9/00H02M9/04
CPCA61N1/39A61N1/3968A61N1/3975G05F1/461G05F1/575H03K7/08H02J7/0068H02M11/00H02J2207/50
Inventor 李萍高亚罕单纯玉张杏芳崔玉仲贝贝郭珊印
Owner SHANGHAI UNIV OF MEDICINE & HEALTH SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com