Surgical Needles TRIZ Cases

Micro-needle insertion creates channels in degenerated discs to deliver compositions that increase disc height, reducing reliance on opioid pain management.

A puncture device shaft uses a core member and outer layer body to provide adjustable flexibility.

A soft elastomer capsule endoscope uses embedded permanent magnets to achieve stable 3D rolling locomotion inside the stomach.

A virtual port device anchors and lifts cavity walls using magnetic or suction mechanisms.

Replacing complex imaging systems with sensor-based detection to resolve positioning accuracy versus device complexity contradictions.

Flexible catheter penetrates inferior vena cava wall to sample liver tissue, avoiding bleeding risks in coagulopathic patients.

Integrating a soluble adhesive fixation element with a porous manifold resolves the contradiction between pressure distribution and attachment security.

Dynamic pose adjustment corrects for anatomical deformation during surgery, maintaining precise needle placement without collision risks.

A gas detection system measures methane and hydrogen concentrations in the abdominal cavity, resolving optical limitations during laparoscopy.

Autonomous steerable surgical device navigates tissue using real-time imaging feedback to correct trajectory deviations and minimize placement errors.

Surface-channel obturator tips route insufflation fluid externally; the layout removes seals and addresses delayed delivery and tissue injury.

A hydraulic injection system delivers bone cement using a piston and check valve mechanism.

Microneedles bypass photon scattering in turbid skin to enable depth-selective photothermal therapy and precise drug delivery.

A helical spacer maintains coaxiality in a laser ablation catheter, reducing flow obstruction and preventing tissue carbonization.

A transfer instrument uses a shaft to unfold a curved support portion inside an outer cylinder.

Segmented design and nested protective sleeve minimize tissue damage and accidental punctures during safe intraosseous needle removal.

Segmenting the pacemaker into a fetal electrode and a maternal power source resolves dislodgement risks caused by uterine movement.

MRI-guided laser probes enable precise thermal ablation of brain tumors while minimizing invasiveness and radiation toxicity.

A low profile surgical staple uses a continuous bridge cross section to store elastic strain energy in nitinol.

Centralized conduit channels shift exit locations to reduce torque from cable weight, resolving physician fatigue and precision loss in electrosurgery.

A single device punches a lumen and deploys an expanding wire mesh implant in one continuous motion.

A surgical device uses a plug with diverging curved channels to guide instruments through complex anatomical pathways.

Nesting coils inside the shaft and using a detachable hub manages device complexity while enabling precise real-time tracking during sinus surgery.

Segmented needle design separates inner rod from outer tube to stop injection and prevent leakage into blood vessels.

Nested biopsy cannulas integrate vacuum lines and filters to eliminate multiple tubes, reducing waste while maintaining continuous tissue collection.

Pivotable jaw engages tissue while fluid channels open to confirm head unit placement, reducing penetration depth and injury risk.

A coaxial antenna uses a metallized dielectric sleeve to confine microwave radiation for precise tissue ablation.

A catheter system integrates an optical imaging assembly with a curved needle guide for precise epicardial agent delivery.

Radiating tip portion delivers microwave energy and electroporation via a surgical scoping device to ablate pancreatic tumors with high precision.

Segmented guidewire tips pivot about a single axis to navigate tortuous vasculature without kinking.

A passive surgical suction device uses a venturi air amplifier to generate variable vacuum without moving parts.

Cable-driven bendable sections in the elongated shaft enable multi-directional articulation, resolving dexterity limits in minimally invasive surgery.

Segmented electrosurgical teeth apply independent electrical charges to abrade spinal tissue, reducing operating time while maintaining precise control.

Microwave antenna heats aneurysm tissue to induce coagulation, preventing embolic material migration and recanalization.

An adhesive base with friction grommets secures catheters, preventing dislodgement during patient movement without kinking the tube.

A fail-safe insufflator uses a mechanical thermal cutoff to interrupt power to an electrical heater.

Fenestrated loops on a backing material abrade epithelial surfaces to collect tissue samples while minimizing trauma and inducing an immune response.

Adjustable aperture template grid resolves stability versus adaptability contradictions, enabling precise needle targeting while avoiding rectal injury.

Composite insulation layers on electrosurgery handpiece circuit board prevent high-frequency breakdown while maintaining smoke evacuation efficiency.

A weighted element transitions from a static stopper to a dynamic mixer inside the storage tube.

A dual-element surgical device integrates a driver shaft and guide sheath to attach implants within limited access spaces.

Helical slits in the proximal portion provide flexibility for vascular navigation while fine holes enable irrigation to prevent tissue adhesion.

Insulated electrode members prevent thrombus attachment during tissue fusion by blocking conduction on blood-contacting surfaces.

Positioning elements center the catheter to deliver uniform steam ablation, preventing bleeding and perforation risks caused by patient movement.

A magnetic robot uses a rotating magnet to move a cover, exposing a tissue sampling needle only when needed.

A non-invasive ingestible capsule collects gastrointestinal microbiota samples using a hydrophilic strut to trigger port closure.

Nano-porous silicon captures fragile molecules through capillary adsorption, preserving RNA integrity during rapid intraoperative analysis.

Segmented electrodes rotate via an intermediate section to expand spacing, resolving alignment issues during small-diameter probe insertion.

Slit cannula expands to increase tissue volume while maintaining thin diameter for endoscope insertion.