FastTraCS’ design team can swiftly bring your 2D drawing to 3D life.

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Low-Profile Suprapubic Cystostomy Conduit

FastTraCS’ design team can swiftly bring your 2D drawing to 3D life.

Identifying the problem

Conventional suprapubic cystostomy catheters are a minimally invasive intervention to effectively void urine from the bladder in patients that cannot, or have diminished ability to, void through the urethra. Typically, these devices are used in patients with neuromuscular dysfunction in the affected area. Examples include patients with benign prostatic hyperplasia (BPH) or those with neurogenic bladder, related to nerve damage from multiple sclerosis (MS), Parkinson's disease or diabetes.

Currently marketed devices suffer from two major problems:

  1. decreased quality of life associated with psychosocial factors (e.g., embarrassment, odor, etc.) and
  2. device dislodgement, requiring urgent inpatient surgery and replacement.

The proposed device is intended to address both problems, firstly inclusion of two self-sealing values and cover cap to address the former, and secondly by a redesign from the distal (bladder) and proximal (abdominal skin surface) ends of the device for the latter, reducing the risk of dislodgement and trauma.

Concept Drawing and Key Features

FastTraCS worked with the VIR physicians to determine the key features of the device. The following are design features identified prior to, or during intake design meetings:

  • The device contains an inner channel or "conduit" that is fitted with two (2) separate self- sealing silicone one-way valves.
  • Secured with a balloon within the bladder.
  • To void urine from the bladder, an internal channel for urinary catheter placement through both valves into the bladder.
  • When drainage is complete, the urinary catheter may be removed and both valves self-seal, preventing leakage.
  • Devices can remain capped when not in use.
  • Device is intended for patients who can manage with intermittent bladder drainage. However, if continuous drainage is needed, a traditional Foley catheter can be placed through the device and hooked up to the drainage bag.
  • Any conventional suprapubic catheter can be converted easily to the low-profile device.

Computer Aided Design

FastTraCS translated the 2D sketches and key feature requirements into a 3D CAD model. The model depicts the device in the "in-use"/deployed and resting/undeployed configurations.

Methods & Skills

  • Intake design meetings
  • Physician consultation
  • Device features
  • Concept drawings
  • Computer Aided Design

Tools & Resources

  • CAD

FastTraCS is an experienced team of biomedical engineers who identify solvable problems at UNC Hospitals and swiftly develop solutions. We quickly translate discoveries, ideas and inventions into marketable products by providing R&D and research commercialization support through concept generation, design and advanced prototyping.

Related Work

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