Scope-Mounted Inod Handle for Deep Bronchial Biopsy Visualization
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Solution Overview
Problem
Current biopsy needles lack the ability to visualize target tissue during endoscopic procedures, especially when the target tissue is located in secondary or tertiary bronchial passageways, as the endoscope cannot be inserted directly to the site, and existing handles do not allow for relative movement between the needle and endoscope.
Innovation Solution
A handle design with a telescoping structure comprising a distal, central, and proximal portion, allowing for relative movement between the needle, sheath, and endoscope, and incorporating an introducer port for an auxiliary tool like an ultrasound probe to visualize the target tissue, ensuring accurate sampling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the endoscope is inserted to visualize target tissue, then visualization capability is improved, but the endoscope cannot reach secondary or tertiary bronchial passageways
Solution Approach 1:
The handle is divided into three telescoping portions (distal, central, proximal) that can extend relative to each other, allowing the needle to reach deeper into inaccessible bronchial passageways while the endoscope remains positioned in accessible areas for visualization
Solution Approach 2:
An auxiliary tool (ultrasound probe) is introduced through the introducer port to serve as an intermediary for visualizing target tissue in inaccessible areas, while the telescoping handle extends the needle's reach beyond the endoscope's physical limits
2Device complexity
If the handle structure is fixed, then structural simplicity is improved, but relative positioning between needle and endoscope cannot be adjusted
Solution Approach 1:
The handle portions are designed to be longitudinally movable relative to one another through telescoping mechanisms, allowing dynamic adjustment of the needle's position relative to the endoscope during the procedure while maintaining a relatively simple overall structure
3Productivity
If the needle is extended to reach target tissue, then sampling capability is improved, but the needle cannot be properly positioned without visualization
Solution Approach 1:
An auxiliary visualization tool (ultrasound probe) is introduced through the introducer port to serve as an intermediary for visualizing target tissue, enabling precise needle positioning and accurate tissue sampling in inaccessible areas
Solution Approach 2:
The auxiliary tool is nested within the handle structure through the introducer port, allowing it to be positioned alongside the needle within the sheath to provide real-time visualization during the sampling procedure
Data Source
AI summary
A handle for a medical device includes a distal portion extending longitudinally and including a distal channel extending therethrough, the distal end of the distal portion including a connector configured to connect to a proximal end of an endoscope, a central portion slidably connected to the distal portion, the central portion extending longitudinally. The handle also includes a central channel extending therethrough, the distal end of the central portion connected to a sheath, the central portion including an introducer port extending laterally therefrom so that an auxiliary tool inserted through the introducer port is directed through a lumen of the sheath. Further, the handle includes a proximal portion slidably connected to the central portion, the proximal portion extending longitudinally and including a proximal channel extending therethrough, the distal end of the proximal portion connected to a needle so that the needle is passed through the lumen.