Peristaltic Penile Prosthetic Pump Integration
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Solution Overview
Problem
Current penile prosthetics for erectile dysfunction require separate implantation of a fluid reservoir in the abdomen and a pump in the scrotum, which can be cumbersome and may cause skin trauma, and lack efficient control over erection and flaccidity transitions.
Innovation Solution
A single monolithic pump with an integrated fluid reservoir is implanted into the corpora cavernosum of the penis, featuring peristaltic tubing that allows fluid to be pumped from the reservoir into a bladder using manual peristaltic compression, providing improved control over erection and flaccidity through a check valve system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate reservoir and pump are implanted in traditional locations (abdomen and scrotum), then the system provides fluid storage and pumping capability, but the device complexity and risk of skin trauma increase
Solution Approach 1:
The patent combines the fluid reservoir and pump into a single integrated implantable device that is placed within the corpora cavernosum. This merging eliminates the need for separate abdominal reservoir and scrotal pump implants, thereby reducing the number of surgical sites and minimizing skin trauma while providing both fluid storage and pumping functions in one location.
Solution Approach 2:
The single integrated implant serves multiple functions: it acts as both the fluid reservoir and the pump mechanism. The device includes a collapsible body that stores fluid and peristaltic pumping elements that move fluid into the cylinder, enabling one component to perform the roles previously requiring separate devices.
2Ease of operation
If traditional bulb pump is squeezed multiple times to incrementally move liquid, then the pumping action is achieved, but the ease of operation and user control are reduced
Solution Approach 1:
The peristaltic pumping mechanism operates through periodic, wave-like contractions that sequentially compress sections of the tubing to move fluid. This periodic action provides more controlled and efficient fluid transfer compared to repeated bulb squeezing, reducing the number of manual operations needed while improving user control over the inflation process.
3Adaptability or versatility
If rigid structure is used for pump body, then the structural strength is sufficient, but the adaptability to different implantation sites and sizes is reduced
Solution Approach 1:
The pump body incorporates a collapsible, flexible structure that can adapt to the contours and size of the corpora cavernosum implantation site. The flexible yet durable material allows the device to conform to patient anatomy while maintaining sufficient structural integrity to contain and pump fluid effectively.
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
This design enhances user control over penile inflation and deflation, reduces the risk of skin trauma, and integrates the reservoir and pump for a more streamlined implantation, offering improved functionality and comfort compared to traditional systems.
Implementation Method 1
peristaltic compression applied from the proximal end to the distal end of the peristaltic tubing pumps fluid from the reservoir into the cylinder bladder
Data Source
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AI summary
A penile prosthetic includes a proximal tip in communication with a reservoir, a cylinder bladder connected at a proximal end to the proximal tip and extending to a distal end, and peristaltic tubing disposed inside the cylinder bladder. The peristaltic tubing has a proximal end that communicates with the reservoir and a distal end that is open to the cylinder bladder. Peristaltic compression applied from the proximal end to the distal end of the peristaltic tubing pumps fluid from the reservoir into the cylinder bladder.