Low Profile Penile Prosthesis Rear Tip Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing inflatable penile prostheses (IPPs) have high and rigid rear tips that complicate surgical implantation and cause post-operative discomfort, and their construction is inefficient and costly.
Innovation Solution
A low profile rear tip is designed with a one-piece integration of the strain relief portion and tubing junction, featuring a fluid chamber and conduit with a minimal angle between longitudinal axes, reducing the device's profile and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a high profile rear tip with rigid structure is used, then structural strength and stability are improved, but ease of implantation and post-operative comfort deteriorate
Solution Approach 1:
The patent applies this principle by replacing the traditional rigid rear tip structure with a flexible, compliant structure that can be compressed during implantation. The rear tip is designed with sufficient flexibility to be compressed within a catheter during surgical insertion, yet maintains structural integrity and functional strength when in place, thereby resolving the contradiction between strength and ease of implantation.
Solution Approach 2:
The patent applies this principle by designing a rear tip that transitions from a static rigid structure to a dynamic compliant structure. The rear tip is engineered to change its physical state during implantation (compressible) and during use (maintains structural integrity), allowing it to adapt to different operational requirements and resolve the contradiction between strength and ease of implantation.
2Strength
If a high profile rear tip with rigid structure is used, then structural strength is improved, but post-operative comfort deteriorates
Solution Approach 1:
The patent applies this principle by replacing the traditional rigid rear tip structure with a flexible, compliant structure that can be compressed during implantation. The rear tip is designed with sufficient flexibility to be compressed within a catheter during surgical insertion, yet maintains structural integrity and functional strength when in place, thereby resolving the contradiction between strength and ease of implantation.
Solution Approach 2:
The patent applies this principle by designing a rear tip that transitions from a static rigid structure to a dynamic compliant structure. The rear tip is engineered to change its physical state during implantation (compressible) and during use (maintains structural integrity), allowing it to adapt to different operational requirements and resolve the contradiction between strength and ease of implantation.
3Manufacturing precision
If traditional multi-component construction is used, then manufacturing precision can be maintained, but ease of manufacture and production cost deteriorate
Solution Approach 1:
The patent applies this principle by integrating multiple previously separate components (rear tip, strain relief portion, and tubing junction) into a single monolithic structure. This consolidation maintains manufacturing precision through integrated molding while dramatically simplifying the manufacturing process and reducing production costs by eliminating assembly steps, thereby resolving the contradiction between precision and ease of manufacture.
Solution Approach 2:
The patent applies this principle by designing a single integrated component that performs multiple functions simultaneously: providing strain relief, serving as a tubing junction, and forming the rear tip structure. This multi-functional design maintains manufacturing precision while simplifying production and reducing costs, thereby resolving the contradiction between precision and ease of manufacture.
4Reliability
If traditional multi-component construction is used, then structural functionality is maintained, but device complexity and production cost deteriorate
Solution Approach 1:
The patent applies this principle by integrating multiple previously separate components (rear tip, strain relief portion, and tubing junction) into a single monolithic structure. This consolidation maintains manufacturing precision through integrated molding while dramatically simplifying the manufacturing process and reducing production costs by eliminating assembly steps, thereby resolving the contradiction between precision and ease of manufacture.
Solution Approach 2:
The patent applies this principle by designing a single integrated component that performs multiple functions simultaneously: providing strain relief, serving as a tubing junction, and forming the rear tip structure. This multi-functional design maintains manufacturing precision while simplifying production and reducing costs, thereby resolving the contradiction between precision and ease of manufacture.
Data Source
AI summary
An implantable penile prosthesis is attachable to a pump and a reservoir and includes a distal part formed by a rear tip that is connected to a proximal part formed by a cylinder. The cylinder is oriented on a first longitudinal axis, and a distal portion of the rear tip forms a fluid chamber communicating with the cylinder. A tubing junction is integrally formed with the distal portion and communicates with the fluid chamber in the rear tip. A strain relief portion has a bore disposed on a second longitudinal axis, where the second longitudinal axis forms an acute angle relative to the first longitudinal axis, and the acute angle has a measurement that does not exceed 5 degrees. An exterior surface of the rear tip, between the tubing junction and the cylinder, provides the distal portion of the rear tip with a constant outer diameter.