Surgical Needles TRIZ Cases

A pressure transducer reads continuous pulsatile waveforms from an IO catheter to confirm medullary placement quickly and reliably.

Projected light cues guide proximal needle alignment from predicted bendable trajectories, reducing repeated imaging and radiation exposure.

A J-shaped Nitinol stylet and nested electrode assembly improve BVN access and speed tissue heating for shorter ablation procedures.

Integrated electrodes and compression plates measure tissue impedance during biopsy to confirm microcalcifications and shorten procedure time.

A tension-actuated bendable cutter reaches multiple cardiac angles to precisely remove septal hypertrophy with less trauma.

A constant-velocity joint enables angle-independent probe rotation in MRI-guided RFA, improving targeting precision and reducing procedure time.

An insulative gas layer around the RF electrode limits current shunting in blood, enabling cleaner tissue vaporization with less thrombus risk.

An inflow cannula routed through the left atrial appendage and mitral valve avoids apical LV damage, sternotomy, and bypass.

Controlled needle motion places a glucose sensor subcutaneously with better insertion depth, timing, and positioning accuracy.

A shield and spring retract the rotating stylet inside the barrel to prevent accidental sharp exposure during setup, use, and disposal.

Electrical impedance between shunt-linked electrodes confirms tissue wall capture during deployment, helping prevent misplacement and stroke risk.

A spring-driven applicator with an anti-rotation needle hub improves on-skin sensor insertion stability, retraction control, and wear comfort.

A sheath-covered robotic injection needle prevents port damage and unintended tissue contact while enabling precise contrast or drug delivery.

Real-time ultrasound feedback and organ structure data guide automatic endoscope probe positioning for precise lesion targeting and safer EUS-FNA.

An expandable ring and segmenting wires let large tissue specimens be contained, segmented, and removed through small incisions with less spillage risk.

A single activator coordinates coaxial needle locking and movement to ease dense-tissue insertion and improve precise core sampling.

Visible laser guidance and arc-rail positioning help align CT-planned needle paths, improving puncture accuracy and reducing repeat attempts.

A pre-piercing aid creates an aligned entry path so a thin light applicator can reach deep tissue with less force, less bending, and better targeting.

Pressure-driven marker ejection and barb fixation improve biopsy site retention and imaging visibility while minimizing marker migration.

A collapsible-to-expandable distal sampler collects esophageal tissue while limiting contact with non-target luminal tissue and easing vial transfer.

A slotted ossicular prosthesis and plunger applicator enable controlled stapes fitting to reduce dislocation and improve sound conduction.

A dual-lumen cryogenic probe freezes tissue for adhesion-based biopsy, reducing discomfort, sedation needs, and bleeding risk.

A porous hydrogel ball absorbs saliva, concentrates bound biomarkers, and releases them on demand for non-invasive oral diagnostics.

Real-time sensor feedback and machine-fixed calibration keep needle insertion aligned with imaging coordinates for more consistent placement.

A handle-integrated electrocautery path lets one operator advance the perforation device and apply RF energy for more precise transseptal puncture.

Orthogonal bores retain a gaseous insulation layer on the distal electrode, enabling RF tissue puncture in blood with less stray current and heat.

A preinstalled sensor module and reusable transmitter simplify CGM attachment while reducing contamination risk and disposable waste.

A bipolar wand with a piercing elevator tip reduces turbinate tissue while limiting bleeding, suction clogging, and procedure time.

Segmented CT images and generative AI help doctors compare needle insertion paths faster, with less subjectivity and lower surgical risk.

A sheath-guided inserter places analyte sensors into skin with controlled, minimally invasive motion to reduce pain and improve monitoring convenience.

A sliding locking grip lets fingers stabilize an ultrasound probe while freeing the thumb for skin tensioning and control operation.

A reusable applicator body with a disposable needle assembly cuts sensor insertion waste and cost while preserving hygienic, reliable use.

A segmented insertion passage with rotating holding portions helps string-like implants load easily and grip or release reliably.

A centering tube guides and protects the microwave antenna during probe-tip assembly, improving ablation zone consistency while limiting tissue damage.

A lever actuator, rotatable needle, and implant-locking cap enable one-handed ocular implant insertion with precise control and sterility.

A sealed menstrual fluid collector preserves biomarkers for non-invasive diagnostic sampling, transport, and remote analysis.

Insulative sleeves, bosses, skirts, and finger stops increase clearance distance to prevent arcing while delivering nsPEFs to tumors.

Interactive 3D planning aligns the ultrasound probe and ablation needle, resolves collisions, and simulates laparoscopic ablation steps.

A pivot member and latch sequence simplify CGM biosensor insertion and retraction while cutting inserter manufacturing complexity and cost.

Positioning strings, a deployment tube, and suction support accurate nasopharyngeal tampon placement while reducing surgeon distraction.

A drill-coupled stylet, nested cannulas, and screw retraction enable bone dowel capture and marrow aspiration using standard operating room drills.

A spring-driven piercing module and release arm help a biopsy probe penetrate dense tissue and improve tissue sample transport.

Integrated conductive layers in a needle tip identify tissue by impedance and support 3D positioning and RF ablation without ionizing imaging.

A three-curve hooked catheter guides a pacing lead from the right atrium to the bundle of His for precise placement and synchronized activation.

Tiny tissue grafts harvested with coordinated tube-and-pin motion reduce donor site damage while supporting direct implantation and rapid healing.

A multi-window GUI maps 3D tip-to-target distance and direction into clear symbols, improving catheter placement accuracy while limiting tissue damage.

A retractable sleeve and suction-assisted cannula improve Schlemm's canal fluid delivery while minimizing trabecular meshwork trauma.

Nested outer and inner tubes with sample capsules collect and store multiple biopsy tissues without repeated withdrawal, shortening procedures.

A detachable oral tip enables repeated saliva and plaque sampling with visual pH indication, helping build a reliable baseline for dental monitoring.

Dynamic pulse adjustment enables precise tumor ablation while limiting thermal injury, muscle stimulation, and collateral tissue damage.