Bladder Prosthesis for Subcutaneous Implantation

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a subcutaneously implantable bladder prosthesis designed to replace a diseased or nonfunctional human bladder. The prosthesis consists of a flexible, tubular liquid container with a biocompatible outer layer and a chemically inert inner layer. It features non-return valves at the input ports to prevent urine backflow to the kidneys and a manually operated discharge valve, which allows controlled emptying of the bladder by the patient. The structure also includes stabilizing elements to ensure mechanical robustness and prevent unintentional emptying due to accidental pressure.

Use CasesContent extracted from patent full text and abstract with AI.

• Medical replacement for patients with bladder removal due to cancer or other diseases.
• Solution for individuals with nonfunctional or severely compromised urinary bladders.
• Use in reconstructive urology as an alternative to external urine collection systems.
• Potential adaptation for male and female patients, depending on anatomical and surgical requirements.

BenefitsContent extracted from patent full text and abstract with AI.

• Enables continent urine management, preventing involuntary leakage and improving quality of life.
• Subcutaneous implantation allows for minimally invasive surgery and easier component replacement if required.
• Use of bioinert and chemically inert materials minimizes immune reactions and reduces risk of infection and encrustation.
• Reduces or eliminates the need for external urine collection bags, enhancing comfort and discretion for the patient.
• Manually controlled valve and stabilizing design minimize risk of accidental leaks during activities such as coughing, sneezing, or movements.
• Modular design enables customization for individual patient needs and simplified surgical procedures.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a bladder prosthesis for subcutaneous implantation, comprising a flexible and substantially tubular liquid container (1) with a wall composed of at least two material layers and a front face and rear face, wherein at least the front face has stabilizing elements. A non-return valve is arranged on each of the openings (2) for the admission of liquid, or a non-return valve is arranged on one of the openings (2) while the other opening (2) is closed with a stopper. According to the invention, a manually activated valve element, or a hose element containing a manually activated valve element, is arranged on at least one opening (3) for the discharge of liquid. The openings (2 and 3) are designed such that they are suitable for the fastening of valve or hose elements. The outer layer (4) of the liquid container wall consists of biologically inert material, and the inner layer (5) is smooth and consists of a chemically inert material. According to the invention, the material layers of the liquid container wall are cohesively interconnected.