Endoscopic Stapler Tissue Clamping Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Endoscopic stapling for conditions like Zenker's Diverticulum faces challenges in obtaining adequate purchase on the pharyngeal wall due to limited field of view, making it difficult to ensure effective stapling and prevent recurrence of deformity.
Innovation Solution
An endoscopic stapler with a design featuring a first and second jaw, along with clamp members that allow for pivotal movement and tissue clamping, enabling the stapler to pull tissue into position between the jaws for secure stapling, facilitating the insertion and bending of staples.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional endoscopic stapling is performed without tissue clamping and pulling mechanisms, then the device structure remains simple, but adequate purchase on the pharyngeal wall cannot be obtained due to limited field of view
Solution Approach 1:
The stapler is divided into functionally independent components: a clamping mechanism with clamp members for grasping tissue, a pulling mechanism with cables and pulleys for drawing tissue into position, and a stapling mechanism with jaws for delivering staples. This segmentation allows each component to perform its specific function effectively while maintaining overall system manageability.
Solution Approach 2:
The clamp members are activated to grasp and pull the tissue into the desired position between the jaws before the stapling action occurs. This preliminary positioning ensures that the tissue is properly aligned and secured prior to staple delivery, guaranteeing adequate purchase on the pharyngeal wall.
2Manufacturing precision
If clamp members are added to clamping and pull tissue into position, then tissue purchase is improved, but the device complexity increases
Solution Approach 1:
The second handle is designed to control multiple functions simultaneously: it operates both the clamp members for tissue grasping and pulling, and the second jaw for positioning. This multi-functionality reduces the number of separate controls and simplifies the overall device architecture while achieving precise tissue positioning.
Solution Approach 2:
Cables and pulleys serve as intermediary elements that transmit the operator's input forces from the handles to the distal components (clamp members and jaws). These intermediaries enable mechanical advantage and precise control of tissue positioning without requiring complex direct actuation mechanisms at the distal end.
3Area of stationary object
If the stapler pulls tissue into position between jaws, then the surface area treated increases, but the operation becomes more complex
Solution Approach 1:
The clamp members are designed to dynamically adapt to the tissue being grasped, allowing them to securely hold various tissue types and sizes. The pulling mechanism provides dynamic control over tissue positioning, enabling the operator to adjust the amount of tissue drawn into position between the jaws based on the specific surgical requirements.
Data Source
AI summary
An endoscopic stapler comprises a first jaw and a second jaw. The first jaw includes structure for retaining a plurality of staples. The first jaw and second jaw are mounted to permit pivotal movement of the first and second jaws relative to one another. The endoscopic stapler also comprises at least one clamp member for clamping tissue and pulling the tissue into a position between the first jaw and the second jaw to facilitate inserting at least one staple of the plurality of staples into the tissue. A first handle is operably coupled with the first jaw such that movement of the first handle effects delivery of the at least one staple of the plurality of staples to the tissue. A second handle is operably coupled with the second jaw and the at least one clamp member such that movement of the second handle effects movement of the second jaw and movement of the at least one clamp member.