Expandable Balloon Instrument for Penile Prosthesis 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.

Innovation Solution

A single instrument with a shaft for measuring and an expandable member that inflates to dilate the corpora cavernosa, combining measurement and dilation functions, reducing the need for multiple tools and improving procedural efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple separate dilation tools and measuring tools are used, then measurement precision and dilation effectiveness are achieved, but device complexity and procedural time increase

Engineering Contradiction:
Improvemeasurement precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines a measuring shaft with an expandable balloon dilation element into a single integrated instrument. The shaft portion provides measurement capabilities while the expandable balloon portion performs dilation, eliminating the need for separate measuring tools and multiple dilation rods. This merging resolves the contradiction by maintaining measurement precision through the shaft while reducing device complexity through integration.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The instrument serves multiple functions: the shaft measures the length of the corpora cavernosa, while the expandable balloon dilates the tissue to receive the prosthetic cylinder. This multi-functionality allows a single device to replace multiple specialized tools, reducing procedural steps and device complexity while maintaining the precision and effectiveness of each individual function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple separate tools are used for measurement and dilation, then functional effectiveness is achieved, but loss of time and procedural efficiency worsen

Engineering Contradiction:
Improvefunctional effectivenessVSAvoidprocedural time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

By merging the measuring shaft and expandable balloon into one instrument, the procedure allows continuous action without removing or replacing tools. The shaft remains in place for measurement while the balloon expands for dilation, eliminating the time loss associated with multiple tool changes and maintaining functional effectiveness throughout the procedure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The instrument enables continuous useful action by maintaining the shaft in the corpora cavernosa for measurement while the balloon expands to perform dilation. This continuity eliminates interruptions and tool exchanges, reducing procedural time while ensuring the reliability and effectiveness of both measurement and dilation functions are maintained.

Inventive Principle:
Principle #20Continuity of useful action

3Reliability

If multiple dilation tools are used, then dilation effectiveness is achieved, but quantity of tools and cost increase

Engineering Contradiction:
Improvedilation effectivenessVSAvoidquantity of tools
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent merges the functions of multiple dilation rods into a single expandable balloon element attached to the measuring shaft. This single instrument replaces multiple separate dilation tools, reducing the quantity of tools required while maintaining dilation effectiveness through the controlled expansion of the balloon to the necessary diameter.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The expandable balloon provides universal dilation capability, replacing multiple specialized dilation rods of different sizes. The balloon can be inflated to the required diameter to dilate the corpora cavernosa effectively, eliminating the need for multiple separate dilation tools and reducing both quantity and cost.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 instrument allows for efficient and cost-effective preparation of the penis for penile prosthesis implantation by measuring and dilating the corpora cavernosa with a single tool, enhancing surgical efficiency and reducing the complexity of the procedure.

Implementation Method 1

aspirating a fluid through an orifice formed in a distal end of the shaft; expanding, with the fluid, a balloon that is attached to the shaft

Methodology Applied
Scientific EffectFluid pressure expansion: Pressure Increase

Data Source

PatentUS8403825B2Instrument with expandable member configured to prepare a penis for implantation of a penile prosthetic
Publication Date: 2013.03.26 COLOPLAST AS
  • US8403825B2 patent drawing
  • US8403825B2 patent drawing
  • US8403825B2 patent drawing

AI summary

A method of preparing an opening formed in a penis for reception of a penile prosthetic includes measuring a length of the opening formed in the penis with a shaft of an instrument; aspirating a fluid through an orifice formed in a distal end of the shaft; expanding, with the fluid, a balloon that is attached to the shaft; and dilating a diameter of the opening formed in the penis with the expanded balloon.