Laparoscopic Instrument Tip with Segmented Jaws for Tissue Containment
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Solution Overview
Problem
Laparoscopic instruments lack a mechanism to prevent tissue slippage during procedures, and they do not provide complete encasement and containment of dissected tissue before removal, complicating minimally invasive surgeries and increasing the risk of complications.
Innovation Solution
A unique laparoscopy instrument tip with a distal end featuring a movable cup-shaped cutting jaw and a fixed ring-shaped cautery jaw, which allows for simultaneous manipulation, cauterization, dissection, and encasement of tissue, preventing slippage and enabling safe and efficient removal, using bipolar electrical energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional laparoscopic instruments are used for tissue manipulation and cutting, then the instrument structure remains simple, but tissue slippage occurs during the procedure
Solution Approach 1:
The instrument tip is divided into multiple functional segments: a grasping jaw for tissue manipulation, a ring-shaped cautery jaw for cauterization, and a cup-shaped cutting jaw for dissection. Each segment performs a specific function, preventing tissue slippage through the grasping mechanism while maintaining overall instrument functionality.
Solution Approach 2:
The patent combines multiple functions (grasping, cauterization, cutting, and encasement) into a single integrated instrument tip. The ring-shaped cautery jaw and cup-shaped cutting jaw are merged with the grasping jaw to form a unified structure that performs multiple operations simultaneously, preventing tissue slippage while consolidating functions.
2Reliability
If conventional instruments are used for tissue cauterization and cutting, then the procedure can be performed, but complete encasement and containment of dissected tissue is not achieved
Solution Approach 1:
The cup-shaped cutting jaw is designed to encase the dissected tissue within its structure, creating a contained space. The ring-shaped cautery jaw surrounds the cup-shaped jaw, forming a nested configuration that provides complete encasement and containment of the tissue during the procedure.
Solution Approach 2:
The instrument tip extends into a third dimension with the cup-shaped cutting jaw forming an enclosed space around the tissue. This dimensional arrangement allows the dissected tissue to be completely contained and protected during removal, adding a spatial dimension to the containment function.
3Productivity
If multiple separate instruments are used for manipulation, cauterization, and cutting, then each function can be optimized, but procedural complexity and operating time increase
Solution Approach 1:
The instrument tip is designed as a universal tool that performs multiple functions: the grasping jaw manipulates tissue, the ring-shaped cautery jaw cauterizes, and the cup-shaped cutting jaw dissects and encases. This multi-functional design eliminates the need for multiple separate instruments, improving surgical efficiency while consolidating operations into a single device.
4Reliability
If tissue is held firmly for cautery or cutting, then the procedure can be performed safely, but tissue slippage occurs during manipulation
Solution Approach 1:
The instrument tip employs dynamic jaw structures that can adjust their gripping force and configuration. The ring-shaped cautery jaw and cup-shaped cutting jaw can be positioned and secured around the tissue, providing firm holding for cautery and cutting while allowing flexible manipulation during the procedure through controlled jaw movement.
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 tip effectively prevents tissue slippage and allows for complete containment and safe removal of dissected tissue, enhancing surgical efficiency, safety, and reducing procedural complexity and risks.
Implementation Method 1
The bipolar cautery technique is the safest and simplest to perform. The poles of the tip of the instrument conduct the electricity between them, with no current flow beyond the instrument tip, so the patient is not part of the circuit eliminating the risk of injury to other organs.
Data Source
AI summary
A unique laparoscopy instrument tip and method which allows simultaneous gasping, cauterization, dissection, containment, enclosure and removal of body tissue. Mechanisms for grasping, holding, manipulating, cauterizing, dissecting, encasement in an enclosed cavity and removing the tissue are provided in one implement allowing easy, safe and quick performance of the procedure.