Grasping Treatment Unit Jaw Segmentation for Bleeding Control
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Solution Overview
Problem
Existing grasping treatment units fail to effectively seal the region between the distal end of a blade and the uncut portion of a treated target, leading to potential bleeding and inefficiencies in treatments, especially when dealing with targets larger than the blade's length.
Innovation Solution
The design incorporates a grasping treatment unit with a blade and a jaw, where the blade's top extends from the proximal to the distal portion, and the jaw features a recessed counter portion to prevent direct contact between the blade's top and the jaw's distal side, ensuring pressure is applied only where necessary, thereby creating a seal between the cut and uncut portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blade's top extends from proximal to distal portion to cut the treated target, then the cutting capability is improved, but the sealing capability in the region between the distal end of the top and uncut portion deteriorates
Solution Approach 1:
The jaw is segmented into multiple functional portions: a proximal side counter portion that contacts the blade's top for cutting, and a distal side counter portion that forms a recessed structure to seal the region between the distal end of the top and uncut portion. This segmentation allows each portion to perform its specific function independently, resolving the contradiction between cutting and sealing capabilities.
Solution Approach 2:
Different regions of the jaw are given different functional properties: the proximal side counter portion has a flat surface for pressure application and cutting, while the distal side counter portion has a recessed structure for sealing. This local differentiation of functional qualities allows the single jaw component to simultaneously support both cutting and sealing operations.
2Productivity
If pressure is applied across the entire blade surface, then the cutting efficiency is improved, but the risk of unwanted cutting in the sealing region increases
Solution Approach 1:
The jaw's counter surface is designed with local quality differentiation: the proximal side counter portion provides a flat contact surface for efficient cutting under pressure, while the distal side counter portion creates a recessed sealing region where pressure is distributed differently. This ensures pressure is applied only where cutting is desired, preventing unwanted cutting in the sealing region.
Solution Approach 2:
The counter surface is divided into functionally distinct segments: a proximal side counter portion for cutting and a distal side counter portion for sealing. This segmentation allows independent optimization of pressure distribution for each function, enabling efficient cutting while preventing harmful unwanted cutting in the sealing region.
3Manufacturing precision
If the blade length is reduced to match the sealing region, then the sealing precision is improved, but the ability to treat larger targets deteriorates
Solution Approach 1:
The jaw is segmented into proximal and distal side counter portions, allowing the blade to maintain its full length for treating large targets while the segmented jaw structure provides precise sealing control at specific regions. The distal side counter portion's recessed structure ensures precise sealing without requiring blade length reduction.
Solution Approach 2:
Instead of controlling sealing through blade length (one-dimensional constraint), the invention uses the jaw's three-dimensional recessed structure to achieve precise sealing. This dimensional shift allows the blade to maintain full length for versatility while the jaw's geometric features provide precise sealing control.
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
This configuration effectively prevents bleeding by creating a seal between the cut and uncut regions, ensuring treatment efficacy and efficiency even when treating targets larger than the blade's length, as it applies pressure only where needed, preventing unwanted cutting and promoting coagulation.
Implementation Method 1
a heating body, and a heat transmitting plate (blade) to which heat is transmitted from the heating body
Implementation Method 2
a portion in the treated target which contacts the top receives high pressure and is thus cut off
Implementation Method 3
pressure from the heat transmitting plate to the treated target is lower than at the top, and the treated target is therefore not cut off and is sealed
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
In a blade of a grasping treatment unit, a top sharpening toward a jaw forms a ridge line along a longitudinal direction of the blade, and in the jaw, a grasping surface opposed to the top extends. A proximal side counter portion, on which the top can abut while the blade and the jaw are closed relative to each other, is provided in a region of the grasping surface located on a proximal side with respect to a distal portion, and a distal side counter portion, which does not contact the top while the top abuts on the proximal side counter portion, is provided in the distal portion of the grasping surface.