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Synthetic and semisynthetic opioids are pivotal in pain management and tackling opioid addiction. Semisynthetic opioids, including morphinans (morphine derivatives), oxycodone, oxymorphone, hydrocodone, and hydromorphone, have improved pharmacokinetic profiles compared to morphine. Additionally, heroin and 6-MAM (6-Monoacetylmorphine) show better CNS penetration than morphine due to heightened lipid solubility. Hydromorphone, a potent opioid, undergoes hepatic metabolism to form the active...
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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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The parenteral route is a critical method of drug administration. It delivers compounds directly into the systemic circulation and bypasses the gastrointestinal tract. This approach is particularly advantageous for drugs that exhibit poor absorption or instability when administered orally.
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An implantable system for opioid safety.

Hen-Wei Huang1,2,3,4, Peter R Chai2,5,6,7,4, Seungho Lee1,2,4

  • 1Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.

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A new implantable robotic system offers continuous opioid overdose monitoring and rapid naloxone delivery. This device aims to significantly improve survival rates by overcoming limitations of current emergency response methods.

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Area of Science:

  • Biomedical Engineering
  • Robotics
  • Pharmacology

Background:

  • Opioid overdose is a leading cause of death, with low survival rates due to delayed emergency response.
  • Current overdose detection and reversal systems have limitations, including poor adherence, inaccurate detection, and slow antidote administration.

Purpose of the Study:

  • To develop and evaluate a subcutaneously implanted robotic first responder for continuous opioid overdose monitoring and rapid naloxone delivery.
  • To address challenges associated with current overdose reversal systems, such as user adherence and detection accuracy.

Main Methods:

  • Development of an implantable robotic system with continuous vital sign monitoring.
  • Utilizing an algorithm to detect opioid overdose by analyzing cardiorespiratory responses.
  • Implementation of an adaptive algorithm to optimize sensor resolution and conserve battery power.
  • Integration of an ultra-rapid naloxone delivery pump for swift antidote administration.

Main Results:

  • The robotic first responder successfully revived 96% of overdosed pigs (n=25) within 3.2 minutes.
  • The system demonstrated continuous monitoring and rapid 10-second naloxone delivery.
  • An adaptive algorithm effectively managed battery life for sustained operation.

Conclusions:

  • The implantable robotic first responder shows significant potential to improve opioid overdose survival rates.
  • This technology offers a promising solution to combat the opioid epidemic by providing timely and automated intervention.