Charging type implantable medical device having protection and limiting functions

A technology of medical devices and protective parts, applied in physical therapy, artificial respiration, etc., can solve the problems of increasing system volume and complexity, achieve the effect of reducing volume and complexity, and protecting thermal safety

Active Publication Date: 2015-12-16
BEIJING PINS MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to ensure the safety of RF energy to human tissue during charging, the international patent application WO2009 / 055579A1 uses a special magnetic induction sensor coil in vitro, which increases the volume and complexity of the system

Method used

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  • Charging type implantable medical device having protection and limiting functions
  • Charging type implantable medical device having protection and limiting functions
  • Charging type implantable medical device having protection and limiting functions

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Embodiment Construction

[0031] The implementation of the rechargeable implantable medical device with protection and restriction functions of the present invention will be described in detail below with reference to the accompanying drawings. A rechargeable implantable medical device with protection and limiting functions is provided, and the rechargeable implantable medical device is fully protected in terms of thermal safety, battery safety and electromagnetic safety, so as to ensure the safety of the rechargeable implantable medical device. The rechargeable implantable medical device contains two functions of protection and limitation. The protection functions include: implanted rechargeable battery temperature protection, implanted titanium shell temperature protection, battery protection circuit, external charging coil temperature protection; the limiting function includes: internal reception Power limitation, magnetic induction intensity limitation, charging efficiency limitation and external em...

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Abstract

The invention provides a charging type implantable medical device having a protection function and a limiting function and belongs to the technical field of implantable medical instruments. The device has the protection function and the limiting function. The protection function includes implanted rechargeable battery temperature protection, implanted titanium temperature protection, protection by a battery protection circuit and an external charging coil temperature protection. The limiting function includes inner receiving power limiting, magnetic induction strength limiting, charging efficiency limiting and external transmission power limiting. The implanted rechargeable battery protection circuit realizes comprehensive protection against conditions such as overvoltage, under voltage, overcurrent and load short circuit that may cause damage to a battery. The device provided by the invention has characteristics of guaranteeing heat safety, battery safety and electromagnetic safety.

Description

technical field [0001] The invention relates to a rechargeable implanted medical device with protection and limiting functions for implanted medical instruments, and belongs to the technical field of implanted medical instruments. Background technique [0002] In recent years, with the development of wireless technology and lithium rechargeable battery technology, rechargeable implantable medical instrument products have become the mainstream trend of development. When an implantable medical device is implanted into the patient's body, it needs to adopt a percutaneous wireless charging method. This charging method is generally based on the principle of electromagnetic coupling, and uses electromagnetic fields to penetrate the human skin to transmit energy to the implanted medical device. [0003] Implantable medical instruments are generally sealed with biocompatible titanium metal. Due to the eddy current effect of the titanium shell during the electromagnetic coupling proc...

Claims

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Application Information

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IPC IPC(8): A61N1/36
Inventor 不公告发明人
Owner BEIJING PINS MEDICAL
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