Biportal Spinal Sheath Device Saline Irrigation
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Solution Overview
Problem
Biportal endoscopic spinal surgery lacks a device to ensure continuous and smooth saline solution supply to the surgical site, affecting visibility during procedures.
Innovation Solution
A sheath device with a guide tube, saline solution guide part, volume control valve, damping chamber, and adapter part to maintain saline solution flow and clean the endoscope lens, ensuring optimal visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If biportal endoscopic spinal surgery is performed without a dedicated sheath device, then the surgical procedure can be simplified, but visibility at the surgical site deteriorates due to poor saline solution supply
Solution Approach 1:
The patent combines multiple functions into a single integrated sheath device: the guide tube provides structural support and defines the surgical corridor, the saline solution guide part delivers irrigation fluid to the surgical site, and the adapter part connects the endoscope probe. This integration ensures continuous saline supply for visibility while maintaining a unified device structure rather than separate components.
Solution Approach 2:
The sheath device performs multiple functions simultaneously: it serves as a protective conduit for the endoscope, a delivery system for saline solution, and a structural framework for the surgical procedure. The guide tube protects the probe, the saline guide part maintains visibility through continuous irrigation, and the adapter part enables probe insertion and positioning, all within a single device.
2Illumination intensity
If conventional uniportal endoscopic decompression is used, then the surgical procedure is simpler, but visibility at the surgical site deteriorates significantly
Solution Approach 1:
The patent transitions from a single-port (uniportal) approach to a biportal approach, adding a second access point. The sheath device enables this dimensional change by providing a dedicated pathway for the endoscope through the adapter part, allowing saline solution to be supplied from a different direction and improving the surgical corridor geometry for better visibility and instrument manipulation.
3Reliability
If no saline solution guide part is provided, then the device structure is simpler, but continuous saline supply to the surgical site cannot be maintained
Solution Approach 1:
The saline solution guide part is pre-configured within the sheath device structure, with the guide tube and adapter part positioned to ensure immediate saline delivery upon insertion. The guide part is designed to maintain saline flow continuity from the moment the device is inserted, preventing interruptions in irrigation and visibility during the surgical procedure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The sheath device provides continuous saline solution supply and lens cleaning, significantly enhancing surgical visibility and success rates in biportal endoscopic spinal surgery.
Implementation Method 1
a damping chamber to receive and accommodate the saline solution that has passed through the valve body and to guide the saline solution to the guide part
Data Source
AI summary
An endoscopic device for biportal endoscopic spinal surgery is proposed. The device includes: a guide tube as a hollow tubular member extending in a longitudinal direction and having a front end thereof reaching a target site in a patient's body when being used, the guide tube accommodating a probe of an endoscope inserted therein; a saline solution guide part mounted on a rear end of the guide tube and guiding a saline solution injected from an outside to an inside of the guide tube; and an adapter part positioned at the rear end of the guide tube and guiding the probe of the endoscope to use to the guide tube.