Grasping Jaw Movement Regulating Portion for Tissue Hitching
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Solution Overview
Problem
Existing grasping treatment devices face challenges in effectively preventing the hitching of grasp objects on the jaw during treatment, which can lead to compromised treatment performance due to the inability to regulate movement along the jaw axis effectively.
Innovation Solution
The device incorporates a jaw with a first non-contact portion and a second non-contact portion, each having a continuous surface that does not regulate movement when the jaw is open relative to the distal treatment section, and a movement regulating portion positioned closer to the abutment portion to prevent hitching when the jaw is closed, ensuring the grasp object is securely held and treated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the jaw is designed with non-contact portions having spaces between them and the distal treatment section, then the grasp object can be securely grasped between the jaw and distal treatment section, but the grasp object may become hitched on the jaw during treatment
Solution Approach 1:
The jaw is designed with different surface characteristics in different regions: the first non-contact portion has a continuous surface that does not regulate movement (preventing hitching), while the second non-contact portion has a distance-changing surface that regulates movement (enhancing grasping reliability). This local differentiation resolves the contradiction by assigning different functions to different parts of the jaw.
Solution Approach 2:
The jaw is divided into multiple functional portions: a first non-contact portion with a continuous surface for preventing hitching, and a second non-contact portion with a distance-changing surface for regulating movement. This segmentation allows each portion to address specific aspects of the technical problem independently.
2Reliability
If the jaw is closed relative to the distal treatment section to secure the grasp object, then treatment can be performed, but frictional heat is generated which may compromise treatment performance
Solution Approach 1:
The continuous surface of the first non-contact portion is designed to reduce frictional heat generation during jaw closure, converting the potentially harmful heat into a beneficial effect that protects the grasp object from thermal damage while maintaining secure grasping. This resolves the contradiction between achieving reliable treatment and preventing harmful heat generation.
Data Source
AI summary
A jaw of a grasping treatment device includes a non-contact portion having a space between it and a distal treatment section in a state where an abutment portion abuts on the distal treatment section, and the non-contact portion includes a wall surface portion inclined so that it is extended toward a distal treatment section side as it is extended away from the abutment portion. A movement regulating portion is provided in a region of the non contact portion located closer to the abutment portion than a continuous surface which forms an edge of the non-contact portion. The movement regulating portion located in the first wall surface portion regulates a movement of a grasp object along the jaw axis direction.