Linear Cutting Stapler Pin Slot Positioning Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing linear cutting staplers are inconvenient to use during surgery due to the need to separately handle the upper and lower jaws when re-locating tissues, which can cause operational inefficiencies.
Innovation Solution
The design incorporates a positioning pin and pin slot system with a first and second slot position, allowing the upper and lower jaws to be closed and opened with the positioning pin acting as a support shaft, enabling the stapler to be lifted by holding either jaw, facilitating tissue re-location and simplifying operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the upper and lower jaws are detached during surgery for tissue re-location, then the tissue can be re-positioned, but the operator must separately hold both jaws which causes operational inconvenience
Solution Approach 1:
The patent combines the upper jaw and lower jaw into a unified structure through a hinge connection, allowing them to remain connected while opening and closing. This merging enables the operator to hold the stapler as a single unit while still achieving jaw separation for tissue re-location, thus maintaining adaptability while improving ease of operation
Solution Approach 2:
The hinge mechanism provides dynamic movement between the upper and lower jaws, allowing them to rotate relative to each other while remaining connected. This dynamic connection enables flexible adjustment and re-location of tissues without requiring complete detachment, resolving the contradiction between adaptability and operational convenience
2Stability of the object's composition
If the positioning pin rotates from the first slot position to the second slot position, then the jaw alignment is maintained during opening, but the pin must pass through an avoiding part which requires precise geometric design
Solution Approach 1:
The pin slot is designed with a three-dimensional avoiding part that allows the positioning pin to rotate through a complex path. By utilizing spatial geometry rather than simple two-dimensional slots, the design maintains jaw alignment stability while accommodating the rotational movement through a carefully engineered geometric feature
Data Source
AI summary
A linear cutting stapler comprising an upper jaw and a lower jaw capable of being closed or open relative to each other. The upper jaw includes an anvil and the lower jaw includes a staple cartridge frame. The proximal end of the anvil is provided with a positioning pin or a pin slot, and the proximal end of the staple cartridge frame is configured with a pin slot or a positioning pin. Wherein, the pin slot is engaged with said positioning pin, and the positioning pin comprises a first slot position and a second slot position relative to the pin slot. After the upper jaw and the lower jaw are open, the positioning pin is held in the second slot position, by this time the operator can lift up the whole stapler by holding upper jaw or lower jaw, which is convenient for re-locating the tissue and simplifies the operations.