Rotational Release Anastomotic Applier for Adjustable Tissue Pressure
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Solution Overview
Problem
Current anastomotic appliers for surgical procedures, such as gastric bypass, require different devices for varying tissue thicknesses and compression levels, limiting their versatility and adjustability, as the release mechanism is triggered by axial movement or direct contact, making it difficult to deploy ring devices with adjustable ring distances and tissue pressures.
Innovation Solution
An anastomotic applier with a handle and actuating mechanism that allows for independent rotational release of catch means, enabling adjustable latchable ring devices to be deployed with varying ring distances and tissue pressures, decoupling the release from axial deformation and optimizing the ring device design for tissue attachment without dependency on the applier structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the release mechanism is triggered by axial movement or direct contact, then the applier can be simple in structure, but the device cannot accommodate varying tissue thicknesses and compression levels
Solution Approach 1:
The release mechanism transitions from axial movement (one dimension) to rotational movement (another dimension). The actuating member rotates about the longitudinal axis of the implement portion, causing the catch means to engage and disengage from the ring device through radial movement rather than axial movement. This dimensional change allows the release mechanism to be decoupled from the axial deformation process, enabling adaptability to varying tissue thicknesses without increasing mechanism complexity.
2Adaptability or versatility
If the applier is designed for specific ring device deployment, then the deployment precision is high, but the device lacks versatility for different tissue conditions
Solution Approach 1:
The applier is designed with a rotational release mechanism that can accommodate ring devices with varying ring distances and tissue compression requirements. The actuating member's rotation about the longitudinal axis allows the catch means to engage and disengage from different ring device configurations, making the applier universal for various tissue conditions while maintaining precise deployment through the controlled rotational motion.
3Ease of operation
If the release mechanism is coupled with axial deformation, then the mechanism is simple to operate, but it cannot deploy adjustable ring devices with varying distances
Solution Approach 1:
The release mechanism uses rotational movement about the longitudinal axis instead of axial movement. This dimensional change decouples the release action from the axial deformation process, allowing the surgeon to easily rotate the actuating member for release while the ring device can have varying ring distances and compression levels determined by the tissue conditions and ring device design.
Data Source
AI summary
An applier for an anastomosis ring device. The applier has an elongate implement portion and a handle connected to the implement portion. The applier further includes a distal actuating member having catch means which, in a lock position, protrudes radially outward to engage a distal ring. The applier further includes a proximal actuating member adapted to engage a proximal ring, and an actuation mechanism to approximate the proximal and distal rings. The distal actuating member is rotatable about a longitudinal axis from its lock position to a release position thereby sliding along a deviating surface at the implement portion.