Cannulas TRIZ Cases
- Bulbous Surgical Access Probes for Stable Neuromonitoring
Bulbous, rounded probe tips conform to muscle tissue and resist expulsion while supporting stable neuromonitoring during minimally invasive surgery.
- Rotatable Cannula Fixation Mechanism for Surgical Access Stability
A rotating flange expands the fixation sleeve to hold a cannula against the body wall and resist proximally directed forces.
- Combination Ultrasound Transducer-Cannula for One-Handed Fat Injection
A pivotable probe on the cannula handle supports one-handed fat injection with continuous ultrasound viewing of tissue and blood vessels.
- Illuminated Trocar-Microcannula Assembly for Scleral Access
A rigid trocar and light-guided microcannula support scleral entry and precise navigation through the eye’s drainage network.
- Percutaneous Extraforaminotomy Tool Set for Precise Ligament Resection
An integrated stylet, trocar, cannula, and curette set improves targeting and direction switching while reducing hemorrhaging and nerve damage.
- Hourglass Endoscopic Sealing Device for Variable Anal Canal Diameters
An elastic hourglass body and leading-end slit adapt to varied anal canal diameters while maintaining a gas-tight insufflation seal.
- Surgical Puncture Device Motion Sensing for Precise Insertion
Motion sensing and visual or haptic feedback guide puncture creation through tissue, improving positioning and reducing operator error.
- Medical Robotic Coupled Control for Multi-Device Coordination
Coupled control lets surgeons command one slave manipulator while coordinating other instruments and imaging, reducing mode switching during procedures.
- Retracting Sheath Fastener Delivery for Tendon Implant Fixation
A retracting sheath positions fasteners precisely to secure tendon implants and reinforce partial-thickness tears.
- Elastic Endoscopy Sealing Device for Variable Anal Canal Sizes
An elastic endoscopy seal uses a slit and expanding profile to accommodate varying anal canal sizes and maintain gas-tight sealing.
- Flexible-Flange Cannula Design for Fluid Sealing and Instrument Access
A flexible distal flange and valve help cannulas preserve fluid pressure while improving surgical instrument access.
- Cannula Assembly With Suction Cup Seal for Off-Axis Access
A compressible suction cup presses against tissue to seal a cannula, maintain pneumoperitoneum, and allow off-axis instrument movement.
- Stationary Poultry Tray Droplet Delivery With Dual Nozzles
A movable arm keeps the poultry tray stationary while spray and individual-drop nozzles deliver multiple fluids uniformly with less space and loss.
- Hydrophobic Membrane Infusion Valve for Gas Venting
A hydrophobic membrane separates gas and liquid paths, enabling valve venting during ophthalmic infusion while preventing reverse liquid leakage.
- Radiolucent Surgical Retractor with Composite Structural Support
Metal retractors can obstruct spinal X-ray views; a foam-core, thermoplastic-shell design preserves rigidity while keeping the field radiolucent.