Unilateral Biportal Endoscopy Instrument Set
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Solution Overview
Problem
Conventional spinal surgery methods, such as percutaneous foraminotomy, face challenges with limited visibility and poor operability due to a single incision pathway, leading to risks of tissue damage, bleeding, and incomplete removal of lesions, with recurrent pain issues from re-clogging of treated areas.
Innovation Solution
The method of unilateral biportal endoscopy secures two separate pathways for surgical instruments and an endoscope, allowing for clear visualization and precise lesion removal with a surgical instrument set designed for each step of spine surgery, minimizing invasion and reducing muscle damage, bleeding, and infection risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a single incision pathway is used for percutaneous foraminotomy, then the surgical procedure can be performed with minimal invasion, but the field of vision is restricted and operability is poor
Solution Approach 1:
The single incision pathway is segmented into two separate portals: a working portal for surgical instruments and an endoscopic portal for the endoscope. This segmentation allows each portal to be optimized for its specific function, providing both minimal invasion and excellent field of vision simultaneously.
Solution Approach 2:
The surgical approach transitions from a single linear pathway to a two-portal three-dimensional configuration. The working portal and endoscopic portal are positioned at different locations on the skin surface, creating a triangular working space that enhances both visualization and instrument manipulation.
2Device complexity
If a single pathway is used for surgery, then the procedure is simpler to set up, but the operability of surgical instruments is poor and tissue damage risk increases
Solution Approach 1:
The single pathway is divided into two separate access routes. The working portal accommodates surgical instruments while the endoscopic portal accommodates the endoscope, eliminating instrument interference and improving safety through spatial separation.
Solution Approach 2:
A guide tube is introduced as an intermediary device that maintains the pathway structure and provides a stable channel for instrument insertion. The guide tube ensures precise positioning and reduces the risk of accidental tissue damage during instrument manipulation.
3Object-affected harmful factors
If conventional epidural block or neurolysis is used for severe adhesion or stenosis, then the procedure is less invasive, but the treatment is ineffective and pain recurs
Solution Approach 1:
The treatment approach is segmented into two components: the endoscopic portal provides direct visualization of the severe adhesion or stenosis, while the working portal allows insertion of specialized instruments for effective mechanical decomposition and removal of blocking tissue, achieving both minimal invasion and high effectiveness.
Solution Approach 2:
The endoscope provides real-time visual feedback, allowing the surgeon to directly observe the adhesion or stenosis and confirm complete removal. This visual confirmation ensures treatment effectiveness and prevents recurrence, while maintaining minimal invasiveness.
Data Source
AI summary
Disclosed is a method of unilateral biportal endoscopy and a surgical instrument set used in the same. More particularly, the present invention relates to a method of unilateral biportal endoscopy which separately secures a working portal for surgical instruments and an endoscopic portal for an endoscope, thereby providing a more accurate spinal surgery, and to a surgical instrument set which can be effectively applied to the method.