MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202641062338 A) filed by Adichunchanagiri University; and Adichunchanagiri Institute Of Medical Sciences, Mandya, Karnataka, on May 16, for 'a comparative study of ultrasound guided pericapsular nerve group [peng] block versus suprainguinal fascia iliaca compartment [sifi] block using ropivacaine in patients with fracture femur for reducing pain associated with positioning for subarachnoid block.'
Inventor(s) include Dr. Swarna Shree P; and Dr. Manjula R.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a novel ultrasound-guided regional anesthesia method and protocol for superior pain management and patient positioning in femur fracture surgeries. Specifically, it proposes the Pericapsular Nerve Group (PENG) block using ropivacaine as a more effective technique compared to the Suprainguinal Fascia Iliaca (SIFI) block for providing rapid analgesia, facilitating optimal positioning for spinal anesthesia, and improving overall patient comfort and satisfaction. The method demonstrates faster sensory block onset, better pain relief lower VAS scores, superior positioning quality, shorter positioning time, and higher patient satisfaction while maintaining hemodynamic stability. The present invention proposes a PENG block-dominant ultrasound-guided regional anesthesia system and method for femur fracture patients. This method is designed to achieve rapid and effective blockade of the pericapsular nerves including contributions from femoral, obturator, and accessory obturator nerves to provide superior analgesia specifically for hip joint pain during positioning, while using a standardized volume and concentration of ropivacaine under real-time ultrasound guidance."
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