Endoscope Forceps Oscillating Axis Reducing Protrusion
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Solution Overview
Problem
Existing endoscope forceps face challenges in minimizing the protrusion and interference during operations within limited and confined abdominal cavities, particularly in achieving multi-directional movements and effective grasping and severing of organisms while reducing the burden on patients.
Innovation Solution
The forceps design features an openable and closable section with an oscillating operation axis member and an opening-closing operation axis member, utilizing pivotal supports and a leading groove to facilitate rotational movements, allowing the forceps section to rotate more than 90 degrees without interference, thereby minimizing protrusion and optimizing operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If connecting pins and supporting pivots are arranged around the central axis of drive rods to enable multi-free operations, then the forceps can perform oscillating and multi-directional movements, but the insertion section protrudes more and causes interference in confined abdominal cavities
Solution Approach 1:
The patent relocates the second pivotal support from a position around the central axis to a position between the oscillating and opening-closing operation axis members, utilizing the spatial dimension between these parallel axes. This dimensional repositioning allows the forceps to achieve multi-directional movement capability while reducing the radial protrusion of the insertion section, thereby resolving the contradiction between versatility and insertion length.
2Productivity
If the forceps section is designed to rotate extensively for effective grasping and severing, then operational efficiency improves, but the amount of protrusion and contact with surrounding tissues increases
Solution Approach 1:
The patent introduces operation axis members (oscillating and opening-closing types) as intermediary elements between the surgeon's manual operation and the forceps section. These axis members transmit and transform the rotational motion into controlled multi-directional movements of the forceps section, enabling extensive rotation for effective grasping and severing while minimizing direct contact with surrounding tissues by confining the rotation mechanism within the insertion section.
3Ease of operation
If pivotal supports are arranged to allow extensive rotation of the forceps section, then grasping and severing efficiency improves, but the structural complexity increases
Solution Approach 1:
The patent designs the pivotal supports to serve multiple functions: the second pivotal support not only enables rotation of the first forceps member but also positions the tip of the opening-closing operation axis member to clear the second pivotal support during rotation. This multi-functional design allows extensive rotation for efficient grasping and severing while avoiding the need for additional complex components, thereby reducing overall device complexity.
Data Source
AI summary
This invention reduces the amount by which members protrude to the outside of a forceps for endoscope that can perform an oscillating operation, and reduces the amount of contact between an organism and parts other than the surgical instruments, thereby maintaining the visual field of the endoscope. The forceps for endoscope comprises an insertion section that is inserted inside a body cavity, an openable and closable forceps section provided at the tip of the insertion section, and a operation section for controlling the forceps section. The forceps section comprises a first forceps member, and a second forceps member, which faces the first forceps member and can rotate with a first pivotal supporting member as a fulcrum; the second pivotal supporting member supports the first forceps member from vertically above it so that it can rotated freely around an oscillating operation axis member, and is provided between the oscillating operation axis member and an opening-closing operation axis member. A third pivotal supporting member supports the first forceps member from vertically outside, so that it can rotate around the oscillating operation axis member.