Pelvic Bone Anchor Plate for Stable Penile Prosthesis Fixation
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Solution Overview
Problem
Existing penile prostheses face challenges in anchoring to the pelvic bone, particularly in cases where the proximal corpora cavernosa are not present, such as in transgender individuals or those with birth defects or severe trauma, leading to difficulties in securing the prosthesis and preventing migration or crossover.
Innovation Solution
An implantable device comprising an anchor plate and attachment members like clamps, straps, or mesh that engage with the pelvic bone, providing secure coupling and friction-fit mechanisms to anchor the penile prosthesis, allowing for tissue ingrowth and adjustable attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional penile prosthesis anchoring methods are used relying on proximal corpora cavernosa, then the prosthesis can be anchored in natal males with intact corpora, but the anchoring fails in transgender individuals and those with birth defects or severe trauma where corpora cavernosa are absent
Solution Approach 1:
The anchoring system is divided into separate functional components: an anchor plate that engages the pelvic bone directly and attachment members (clamps, straps, or mesh) that provide additional securing. This segmentation allows the system to function without relying on intact corpora cavernosa, as the anchor plate can engage the pelvic bone independently.
Solution Approach 2:
The anchor plate serves as an intermediary device between the penile prosthesis and the pelvic bone. It provides a stable attachment point on the pelvic bone and interfaces with the prosthesis, eliminating the need for intact corpora cavernosa as the intermediary structure.
2Ease of operation
If the prosthesis is anchored without proper attachment to pelvic bone, then the surgery is simpler, but the prosthesis may migrate or crossover
Solution Approach 1:
The attachment members (clamps or straps) are designed to self-adjust and secure to the pelvic bone anatomy. The friction-fit mechanism allows the components to self-lock into position, providing stable anchoring without requiring complex surgical procedures or multiple attachment points.
3Stability of the object's composition
If rigid anchoring structures are used to prevent migration, then prosthesis stability is improved, but the device cannot accommodate varying pelvic anatomies and requires complex revision surgeries
Solution Approach 1:
The attachment members are designed with dynamic characteristics, allowing them to flex and adapt to different pelvic bone geometries. The friction-fit mechanism provides stable anchoring while accommodating anatomical variations, and the modular design allows for easy adjustment or revision if needed.
4Reliability
If multiple attachment points are used to secure the prosthesis, then migration prevention is improved, but the device complexity and surgical time increase
Solution Approach 1:
The anchor plate and attachment members are designed as universal components that can be used with various prosthesis types and pelvic anatomies. The same basic components (anchor plate, clamps, or straps) serve multiple functions: providing stable anchoring, accommodating anatomical variations, and preventing migration, thereby reducing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device effectively secures the penile prosthesis to the pelvic bone, preventing migration and crossover, while allowing for easy revision surgeries and accommodating varying pelvic anatomies.
Implementation Method 1
The prosthesis attachment interface can comprise an elastic material
Implementation Method 2
The engagement of the anchor plate with the first portion of the pelvic bone and the engagement of the at least one clamp with the second portion of the pelvic bone can friction-fit the pelvic bone between the anchor plate and the at least one clamp
Implementation Method 3
The engagement of the anchor plate with the first portion of the pelvic bone and the engagement of the at least one strap with the second portion of the pelvic bone can friction-fit the pelvic bone between the anchor plate and the at least one strap
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
An implantable device for penile construction can comprise an anchor plate and at least one attachment member. The anchor plate can be configured to engage with a first portion of a pelvic bone of a patient. The anchor plate can comprise a prosthesis attachment interface configured to be coupled to a penile prosthesis, and at least one attachment member configured to attach to the anchor plate. The at least one attachment member can be configured to engage with a second portion of the pelvic bone of the patient. The engagement of the anchor plate with the first portion of the pelvic bone and the engagement of the attachment member with the second portion of the pelvic bone can couple the pelvic bone between the anchor plate and the at least one attachment member.