Conductive Hook Polyp Severing Apparatus
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Solution Overview
Problem
Conventional endoscopic procedures struggle to remove relatively large colon polyps due to the inability of conventional snares to fit over them, leading to difficulties in performing effective polypectomy.
Innovation Solution
A polyp-severing apparatus with a conductive hook or forceps that discharges electrical energy to sever polyps from the inner lining of the colon, allowing for engagement and removal of larger polyps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional snares are used for polyp removal, then the procedure is less invasive, but the snares cannot fit over relatively large polyps
Solution Approach 1:
The invention changes the physical parameters of the cutting tool by using an expandable basket structure that can be deployed in different configurations. The basket can be expanded to fit over large polyps or collapsed for insertion through the endoscope, providing adaptability to various polyp sizes while maintaining ease of operation through controlled expansion and collapse mechanisms.
Solution Approach 2:
The basket structure transitions from a collapsed state during insertion to an expanded state during polyp engagement and cutting. This dynamic transformation allows the device to adapt its size and shape to match the polyp dimensions, resolving the contradiction between fitting capability and operational ease.
2Device complexity
If conventional snares are used for polyp removal, then the procedure is simpler, but the recovery time is longer and complications increase
Solution Approach 1:
The invention merges multiple functions into a single device: the basket structure serves as both the engagement mechanism and the cutting tool. Electrical energy is delivered through the basket to sever the polyp base, combining mechanical engagement with electrical cutting in one integrated system, thereby maintaining procedural simplicity while improving outcomes.
Solution Approach 2:
The invention replaces traditional mechanical snare cutting with electrical energy delivery through the conductive basket. This substitution allows for more precise and controlled cutting at the polyp base, reducing tissue trauma and improving healing, thus decreasing recovery time and complications while keeping the overall procedure simple.
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
Enables the effective removal of larger polyps that cannot be addressed by conventional methods, providing additional less-invasive treatment options for polyp removal with reduced recovery time and complications.
Implementation Method 1
The conductive hook discharges electrical energy into an engaged polyp to sever the polyp from the inner lining of the internal cavity
Implementation Method 2
The forceps include conductive opposing inner edges that discharge electrical energy into the engaged polyp to sever the polyp from the inner lining of the cavity
Data Source
AI summary
A method and apparatus for removing polyps from an inner lining of an internal cavity uses a polyp-severing head extending from one end of a sheath. The polyp-severing head comprises a conductive hook or conductive forceps for engaging the polyp and for discharging electrical energy into the engaged polyp to sever the polyp from the inner lining of the internal cavity. In exemplary applications, a physician manipulates the polyp-severing head around the polyp and engages the polyp near the inner lining surface. The physician then discharges electrical energy into the polyp via the polyp-severing head. The electrical energy transferred from the polyp-severing head to the engaged portion of the polyp severs the polyp from the inner lining surface.