Wound Drains TRIZ Cases
- Hydrogel Wound Dressing With Apertured Screen Layer
An apertured screen layer creates a pressure differential that draws exudate through the hydrogel, preventing leakage and maceration.
- Fiducial Drain Device for Targeted Radiation Therapy
Temporary fiducial drain devices mark surgical cavities and remove seroma fluid to improve radiation targeting accuracy.
- Perforated Container Wicking Liquid Collection Device
A perforated container uses wicking material to channel liquid into a chamber via partial vacuum suction.
- Locking Catheter Hub with Suture-Operated Self-Service Mechanism
A locking catheter hub secures the device using a suture-operated mechanism that eliminates external tools.
- Hydrophobic Vent Pores Prevent Liquid Egress in Reduced-Pressure Canisters
Hydrophobic coating on vent pores prevents liquid contamination of the pressure source, reducing protein deposition and extending operational life.
- Water-Soluble Wrapping for Controlled Absorbent Body Expansion
A water-soluble wrapping maintains a compressed absorbent body during insertion and dissolves upon flushing to enable controlled expansion.
- Disposable Flexible Liner Fluid Collection System
Disposable flexible liner fluid collection system with integrated suction connection and piston assembly for waste containment.
- Smart Catheter with Magnetic Valve and Sensors
A smart catheter uses a magnetic valve to control urine flow and sensors for real-time monitoring.
- Multi-site Wound Pressure Monitoring with Segmented Conduits
Segmented sensing conduits enable real-time pressure monitoring at multiple wound sites, resolving measurement precision trade-offs in reduced pressure therapy.
- Skull Implant Automatic Fluid Drain Device with Differential Pressure Valves
A skull implant device uses differential pressure valves to manage cerebrospinal fluid flow and medicine injection through a single integrated structure.
- Suction Swab Drying Osteochondral Defects for Microfracture Repair
A suction swab removes moisture from osteochondral defects to prepare the site for surgical repair materials.
- Looped Drainage Catheter With Inner Surface Bores
Inner surface bores on a looped drainage catheter prevent clogging and accidental removal by positioning openings away from kidney tissue.
- Gravity Independent Medical Drainage Systems Using Archimedean Screw
Archimedean screw element prevents airlocks and obstructions in medical drainage tubing, ensuring continuous flow independent of gravity.
- Balloon Expandable Ureteral Stent Retention
Replacing traditional coils with an expandable balloon member secures the stent in place while minimizing patient discomfort and adverse effects.
- Modified Foley Catheter Air Lock Detection and Clearance
Automated pump system clears air locks in modified Foley catheters to maintain continuous urine drainage.
- Steerable Chest Tube With Adjustable Curvature and Cannulas
A steerable chest tube uses a pull wire to adjust its distal curvature for precise pleural placement.
- Portable Negative Pressure Therapy Apparatus with Segmented Sensing
A portable topical negative pressure therapy apparatus uses segmented sensing conduits to deliver controlled vacuum.
- Implantable Pressure Sensor Drift Compensation
A pressure sensor device uses a flexible diaphragm to detect volumetric stiffness changes for accurate fluid pressure measurement.
- Ureteral Stent Deformable Bladders for Positioning and Reflux Prevention
Deformable bladders on a ureteral stent expand to secure positioning, preventing trigone irritation and urine reflux during patient movement.
- Hybrid PID Bang-Bang Controller for Wound Pressure Stability
A hybrid controller switches between PID and bang-bang modes to maintain wound pressure levels.
- Subcutaneous Fluid Pump Magnetic Actuation and Check Valve Design
A subcutaneous fluid pump uses magnetic actuation to move excess patient fluid through flexible tubing with integrated check valves.
- Vacuum Container With Sealable Inlet And Indicator
Relocating the vacuum indicator to a sealable inlet opening prevents air permeation that neutralizes the vacuum, extending storage durability.