Integrated Penile Dilation Instrument for Prosthetic Implantation
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Solution Overview
Problem
The existing penile prosthesis implantation procedures require multiple tools for measuring and dilating the corpora cavernosa, which can be inefficient and costly, with a desire for more streamlined and cost-effective tools and procedures.
Innovation Solution
A single instrument with a shaft and a movable dilation head that can measure the length of the corpora cavernosa and dilate the tissue, allowing for improved procedural efficiency by combining the functions of multiple tools typically used in the procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple separate tools are used for measuring and dilating the corpora cavernosa, then measurement precision and dilation control are improved, but device complexity and procedural time increase
Solution Approach 1:
The patent combines multiple separate surgical tools (measuring tool and dilation tools) into a single integrated instrument. The instrument includes a shaft for insertion into the corpora cavernosa, a plunger for advancing the dilation head, and a dilation head with cutting edges for tissue removal. This merging eliminates the need to switch between multiple tools during the procedure, reducing device complexity while maintaining measurement and dilation functions.
Solution Approach 2:
The instrument is designed as a multi-functional device that can perform measurement, dilation, and tissue removal functions within a single tool. The shaft provides structural support and measurement capability, the plunger enables controlled advancement, and the dilation head performs both dilation and core-out functions. This universality allows a single device to replace multiple specialized tools.
2Adaptability or versatility
If multiple separate tools are used for measuring and dilating the corpora cavernosa, then functional versatility is improved, but loss of time and procedural efficiency worsen
Solution Approach 1:
The patent merges multiple surgical functions into a single instrument that can be introduced through one incision. The shaft, plunger, and dilation head work together as an integrated system, eliminating the need to remove and replace multiple separate tools during the procedure, thereby reducing procedural time.
Solution Approach 2:
The instrument allows for preliminary measurement of the corpora cavernosa length using the shaft before advancing the plunger to deploy the dilation head. This sequential functionality within a single device enables measurement and dilation to be performed in a predetermined sequence without tool changes, improving procedural efficiency.
3Ease of operation
If traditional dilation methods are used, then tissue dilation is achieved, but tissue abrasion and damage increase
Solution Approach 1:
The dilation head is designed with cutting edges that perform a core-out function, removing a central core of tissue rather than merely compressing and abrading the tissue walls. This extraction of the tissue core reduces friction and abrasion on the surrounding tissue compared to traditional balloon or rod dilation methods that scrape against the tissue surface.
Solution Approach 2:
The instrument provides a controlled dilation approach by using a shaft of specific diameter that serves as a template or copy of the desired final cavity size. The dilation head advances to create a cavity matching the shaft dimensions, ensuring precise sizing while minimizing excessive tissue manipulation and damage.
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3C
AI summary
An instrument and a method configured to prepare a penis for implantation of a penile prosthetic. The instrument includes a shaft (22) extending between a distal end and a proximal end, a plunger (24) coupled to and movable relative to the shaft, and a dilation head (26) coupled to a distal end of the plunger and disposed around an exterior of the shaft. The dilation head is movable longitudinally along the shaft.