Cannulas TRIZ Cases

See how a hand-held nasal irrigation device combines gravity feed, vacuum suction, and pressure

See how a flexible, water-filled hygienic bag with hot air drying replaces water ejectors to re

See how a flexible water-filled bag with integrated hot-air drying enables precise intimate was

See how a hand-held nasal irrigation device integrates gravity, pressure, and powered suction i

See how a removable spray canister integrated into a toilet seat bidet enables independent appl

See how a telescoping shaft with pivot junction and interchangeable heads enables independent b

See how a tongue-like guide vane creates a vortex field to direct airflow along ear canal walls

See how a removable spray canister integrated into a bidet assembly enables independent applica

See how motorized retractable spray and drying nozzles with medicine delivery resolve fixed-pos

See how a hand-held nasal irrigation device combines gravity-fed saline delivery with powered s

See how a bidet nozzle with 3D rotational motion and retractable positioning reaches anterior a

See how a movable nozzle assembly with medicine cartridges and drying air enables localized del

See how an extension tube with integrated brush and spray orifice enables effective rectal clea

See how a removable spray canister integrated into a bidet seat enables independent application

Gravity-fed saline and controlled vacuum suction are combined in a handheld irrigator to cleanse the nasal cavity while collecting effluent cleanly.

Screw-like projections and a flex-tuned shaft let the catheter cross stiff occlusions and dilate vessels by torsional manipulation without a guide wire.

Absorbent discs and spacers clean trocar walls and tip before scope insertion, reducing lens fogging, cleaning passes, and surgery time.

Gravity-fed saline and vacuum suction are combined to control nasal irrigation flow, collect effluent cleanly, and reduce discomfort.

A segmented lead tip with a flexible transition member bends through the delivery sheath while preserving torque transfer and reducing lead damage.

A membrane-coupled sterile adapter and rotatable drape seal simplify robotic instrument exchange while preserving single-port access and sterility.

A sterile drape pocket with a flexible membrane enables faster single-port instrument exchange while shielding robotic manipulators from contamination.

A rotatable entry guide and sterile barrier simplify instrument exchange, cut sterilization downtime, and maintain alignment in robotic surgery.

A sterile drape and actuator interface enable fast instrument exchange while protecting electronics and maintaining precise robotic control.

A sliding carriage with integrated torque, load, and position sensing keeps robotic surgical tool drivers compact while preserving precise articulation.

Magnetic trocar-cannula contacts replace instrument cables, enabling cordless electrosurgery with reliable power and signal transfer.

A collapsible shape-memory antenna expands inside the surgical site to improve RFID-tag detection through small trocar access points.

A trocar-mounted signal interface replaces instrument cables and internal power packs, enabling safe electrosurgical connection with less interference.

A pressure-opened sealing element enables localized drug delivery while preventing clogging, uncontrolled discharge, and tissue ingrowth.

Separate irrigation and suction channels with dual plungers reduce clogging, preserve visibility, and improve material removal.

Segmented seal sections with living hinges help surgical access assemblies fit varied instrument sizes while resisting tearing from repeated insertion.

Integrally formed wing-shaped seal sections with living hinges adapt to varied instrument sizes while resisting leakage and tear damage.

Laser-formed inclined holes give a backflow irrigation needle tip controlled ejection direction, higher pressure, and safer root canal cleaning.

Wedge-cut ribs and mating projections let a bendable insertion tip follow curved passages while staying rigid enough to apply force.

A transitioning washer locks a cannula shaft in tissue for stable laparoscopic access, then releases easily for removal.

A transitionable washer locks onto the cannula shaft to resist retropulsion and over-insertion while maintaining pneumoperitoneum.

A Geneva drive lets an ENT tube index in fixed angular steps, giving one-handed sinus access with precise distal-end manipulation.

A conformable faucet adapter and powered pump deliver continuous adjustable pressurized water without bulky permanent piping or reservoirs.

Laser-formed hinges and FBG tendon sensing improve steerable cannula manufacturing while tracking tension for precise deformation control.

Separate suction and irrigation channels with dual valve plungers keep the flow path clearer, maintaining suction capacity and surgical visibility.

A spring-returned plunger uses compressed gas to create oscillating surgical drive motion without valves, reducing jamming, heat, and sterilization burden.

A pressure-opened sealing element enables precise local drug delivery while preventing tissue ingrowth, clot blockage, and uncontrolled release.

An elastic seal deforms to create a bypass path that keeps saline flush flow near target levels, limiting thrombus risk and excess fluid entry.

A switchable washer lock lets the cannula anchor slide for adjustment, then grip firmly to prevent retropulsion and over-insertion.

Interlocking ribs and tension wires let a deflectable insertion tube bend through curved sinus passages while staying rigid enough for forceful balloon placement.

Portable pumping, conformable adapters, and fluid clamps deliver continuous pressurized water from faucets or showers without a large reservoir.

Separated suction and irrigation paths with offset porting maintain suction capacity, improve visibility, and reduce clogging during material removal.

A Geneva-driven ENT tool enables one-handed guidewire, balloon, and tip control to improve access and maneuverability in confined sinuses.

An overhang canister stand enables gravity-fed tissue dispensing into a vibrating cannula, improving material distribution while reducing scarring.

A sterile drape and detent clamp let robotic surgical tools be swapped quickly without re-sterilizing sensitive manipulator components.

A flexible sheath with inner and outer rings enables 360-degree retraction and insufflation, improving visibility and instrument triangulation in small openings.

A conductive conical catheter tip creates and dilates precise openings across adjacent tissue layers, reducing leakage, trauma, and tool exchange.

Preformed stopper parts and matching restriction portions fix tube position quickly, enabling fast endoscope tube changes without manual adjustment.

A flexible cannula links the eye cavity to an external piezoelectric transducer for real-time pressure sensing with smaller incisions and less disturbance.

Separate lumens and a movable seal let multiple surgical instruments pass with less urethral trauma, less shaft bending, and reduced fluid leakage.

Radial and axial cannula deformation compensates for robotic arm positioning errors, improving instrument alignment at surgical sites.

A retractable stiffening sleeve stabilizes thin surgical needles through a cannula while preserving longer workable reach and surgeon control.

A helical anchor with imaging-guided catheter delivery helps dock prosthetic mitral valves securely, limiting migration, leaks, and misalignment.

Inflatable slit flaps create a sealed, fixed stomach access path for repeated gas release and medication delivery without leakage or reinsertion.

Nested slotted cannulas enable simultaneous irrigation and suction in one arthroscopy portal while preserving debridement speed and reducing incisions.

Copper particles are injected into damaged spinal discs through image-guided access to speed repair while avoiding complex invasive surgery.

A mesh electromagnetic cutter with shape-memory deployment and suction enables safer, more accurate CT-guided lung nodule sampling.

Independent graspers pull tissue from multiple sides into a shroud, enabling circumferential closure of large or fibrotic defects.

A rigid proximal coil and flexible distal coil balance column strength and tortuous navigation while reducing snaking and deployment bias.

Dual antennas on a trocar track tagged surgical items through the cannula, enabling real-time counts and retained-object alerts.

A foam support lets multiple surgical ports angle freely while maintaining a gas-tight seal during minimally invasive and trans-anal procedures.

A tapered introducer receptacle and axial stop ring hold the navigation probe in precise alignment while protecting tissue and preserving visibility.

A five-motor instrument drive unit simplifies robotic arm assembly, cutting weight, cost, and tool docking time in surgical systems.