Since the first permanent pacemaker was implanted in the body in 1958, manufacturers of implantable medical devices have been continuously researching ways to provide power to their products. Non-rechargeable lithium batteries are currently common and are used in heart disease In transplantation equipment for neurogenic diseases, non-rechargeable lithium batteries can generally be used for 7 to 10 years, which is already relatively "longevity. " Researchers believe that unless breakthrough breakthroughs are made in the field of biological batteries, implantation -Style equipment can never really work reliably and permanently. What does this text mean? ['Implantable devices are currently mainly used in the medical field.', 'New technologies need to be introduced in the treatment of neurogenic diseases.', 'Power supply is currently the bottleneck of implantable devices.', 'Broad prospects for implantable medical devices.']