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Heart’s surplus energy may help power pacemakers, defibrillators.
In an experimental study researchers show a beating heart may produce enough energy to power a pacemaker or defibrillator.
In a trailblazing experiment, a micro generator powered by heartbeats produced almost 17 per cent of the electricity needed to run an artificial pacemaker. 'This was a proof-of-concept study, and we proved the concept,’ said Paul Roberts, MD, first author of the study and a Consultant Electrophysiologist at Southampton University Hospital in the United Kingdom. ‘Harvesting surplus energy might be a major transition in implantable pacemakers and defibrillators because engineers will have more energy to work with. ’
In their study, researchers found:

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  At a heart rate of 80 beats per minute (bpm), the device yielded an average harvested energy of 4.3 microjoules per cardiac cycle.
  
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  Increasing changes in the heart rate produced corresponding increases in energy. At 104 to 128 bpm, the harvested energy level increased 140 per coat.
  
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  Decreases occurred when the researchers slowed the heartbeat or lowered blood pressure.
  
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  Implantation and surplus energy harvesting caused no significant injury to the lining of the heart's chambers.
  

Yurakning ortiqcha energiyasi yurak stimulyatori, defibrilatorlarga yordam berishi mumkin.

Eksperimental tadqiqotda tadqiqotchilar urayotgan yurak yurak stimulyatori yoki defibrilatorni quvvatlantirish uchun etarli energiya ishlab chiqarishi mumkinligini ko'rsatmoqda.

Yorqin tajribada, yurak urishi bilan ishlaydigan mikro generator, sun'iy yurak stimulyatorini ishlatish uchun zarur bo'lgan elektr energiyasining deyarli 17 foizini ishlab chiqardi. "Bu kontseptsiyaning isboti edi va biz kontseptsiyani isbotladik", dedi tibbiyot fanlari doktori Pol Roberts, tadqiqotning birinchi muallifi va Buyuk Britaniyaning Sautgempton universiteti kasalxonasida elektrofiziolog bo'yicha maslahatchi. "Ortiqcha energiya yig'ish implantatsiya qilinadigan yurak stimulyatori va defibrilatorlarda katta o'zgarish bo'lishi mumkin, chunki muhandislar ishlash uchun ko'proq kuchga ega bo'lishadi. ”

Tadqiqotchilar o'z tadqiqotlarida quyidagilarni topdilar:

Yurakning tezligi daqiqada 80 zarba (bpm) da, qurilma yurak siklida o'rtacha yig'ilgan energiya 4,3 mikrojoulani tashkil etdi.

Yurak urish tezligidagi tobora ortib boradigan o'zgarishlar energiyani mos ravishda oshiradi. 104 dan 128 gacha tezlikda yig'ilgan energiya darajasi har bir qatlam uchun 140 ga oshdi.

Tadqiqotchilar yurak urishini sekinlashtirganda yoki qon bosimini pasaytirganda pasayish yuz berdi.

Implantatsiya va ortiqcha energiya yig'ish yurak xonalari qoplamalariga jiddiy shikast etkazmadi.