Patna: AIIMS Patna has developed a new indigenous neurosurgical device, the “Saraj Retractor,” aimed at improving precision and ease in brain tumour surgeries. The ultra-light instrument has been designed to simplify surgical procedures that typically require complex support systems.
The innovation has been developed by Dr. Saraj Kumar Singh, Additional Professor in the Department of Neurosurgery at AIIMS Patna, and has received design registration and trademark protection under the institute’s name.
Device Design and Function
Brain retractors are essential tools used in neurosurgery to gently hold back brain tissue, allowing surgeons access to deep-seated tumours and sensitive intracranial areas. Traditional systems are often bulky, weighing around 3.5 kg, and involve multiple components.
According to the institute, these conventional devices usually require assistance from two to three operating room staff members, increasing procedural complexity and setup time. They are also more prone to mechanical issues due to their multi-part structure.
The Saraj Retractor, in contrast, weighs approximately 20 grams and features a single-joint mechanism. It can be operated with one hand, reducing dependence on additional personnel while improving control during surgery.
Improved Surgical Efficiency
The compact structure is designed to minimise clutter in the operating field and enhance visibility during intricate tumour removal procedures. Officials stated that the simplified design may also reduce the risk of mechanical failure seen in conventional systems.
Registration and Recognition
The device has been registered by the Government of India as a “Brain Cortex Separator Instrument for Neurosurgery.” The trademark “Saraj Retractor” has also been officially approved, marking a step towards potential medical product commercialisation.
Institutional Response
Executive Director of AIIMS Patna, Prof. (Brig.) Dr. Raju Agarwal, said the development reflects clinician-led innovation aimed at addressing real surgical challenges.
He said the device strengthens the vision of Atmanirbhar Bharat by promoting indigenous medical technology and improving patient care through research-driven solutions.
Developer’s Statement
Dr. Saraj Kumar Singh said the objective behind the device was to create a lighter, simpler and more efficient alternative to conventional retractors, while reducing dependence on multiple assistants during neurosurgical procedures.
Broader Impact
AIIMS Patna stated that the innovation adds to its growing portfolio of research-based medical advancements and reflects its commitment to affordable and accessible healthcare technologies. The device is expected to support neurosurgeons across the country and improve outcomes in brain tumour surgeries.






















