Transluminal Prosthesis Deployment With Single-Button Alignment
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Solution Overview
Problem
Existing prosthesis deployment devices are complex, requiring multiple safety buttons or tabs and necessitate manual adjustment after the distal end is deployed, making them difficult to use and prone to misalignment during deployment.
Innovation Solution
A prosthesis deployment device with a single safety button, an alignment indicator spaced from the distal sheath end, and a one-handed operation mechanism, allowing precise alignment and deployment of the prosthesis using an actuator to move the outer sheath relative to the electrode tip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple safety buttons or tabs are used in existing prosthesis deployment devices, then safety and control are improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent combines multiple safety functions into a single safety button mechanism. The safety button simultaneously controls multiple functions including preventing premature deployment, ensuring proper positioning, and enabling controlled release of the prosthesis. This merging reduces the number of separate components while maintaining safety through integrated design.
Solution Approach 2:
The single safety button serves multiple functions: it acts as a deployment trigger, a positioning indicator, a locking mechanism, and a release control. By making the safety button multi-functional, the device achieves the safety and control of multiple buttons while maintaining the simplicity of a single component.
2Manufacturing precision
If manual adjustment is required after distal end deployment, then deployment precision is improved, but ease of operation and time consumption worsen
Solution Approach 1:
The device performs preliminary positioning and alignment actions before final deployment. The alignment indicator and safety button mechanism pre-establish the correct positioning state, ensuring that when deployment occurs, the prosthesis is already precisely aligned. This eliminates the need for post-deployment manual adjustment.
Solution Approach 2:
The deployment mechanism is designed to self-align and self-position during the deployment process. The interaction between the safety button, alignment indicator, and delivery catheter automatically ensures proper positioning without requiring separate manual adjustment steps by the operator.
3Measurement precision
If alignment indicator is positioned at the distal sheath end, then alignment accuracy is improved, but ease of operation worsens due to difficulty in maintaining proper alignment during deployment
Solution Approach 1:
The alignment indicator is positioned at a location that provides alignment information from a different spatial dimension or reference frame. By placing the indicator at a specific position on the delivery catheter that corresponds to the distal sheath end during deployment, the system maintains alignment accuracy while allowing the operator to easily monitor and control the deployment process from the proximal end.
Data Source
AI summary
Prosthesis deployment devices and methods of a deploying a prosthesis are disclosed herein. In some embodiments, a prosthesis deployment device includes an elongate delivery catheter assembly and a housing assembly. The elongate delivery catheter assembly is configured for electrosurgery and also configured to retain and deploy a prosthesis from a distal region of the delivery catheter assembly. The distal region of the delivery catheter assembly includes a tip electrode and a distal marker configured to provide endoscopic visibility of the distal region during use and spaced from the tip electrode. The housing assembly operably coupled to the delivery catheter assembly and configured to connect to an electrosurgical power generator. The housing assembly comprises an actuator configured to displace a portion of the delivery catheter assembly to deploy the prosthesis, upon actuation.