Surgical Needles TRIZ Cases

Dual electromagnetic sensors detect surgical instrument position and orientation within hollow shafts for precise navigation.

Pivoting needle knife base achieves independent video camera alignment without increasing device complexity.

An angled needle component bends the distal shaft tip to pierce the intima, enabling reliable re-entry into the true lumen from a subintimal tract.

A chemical ablation clamp injects reagents via retractable needles to treat arrhythmia tissue.

A built-in electrode guiding lobe prevents tissue blockage and enables precise penetration of the active tip through a side outlet opening.

Front-opening gates enable secure plaster removal without rear access, resolving theft risks and replacement complexity in mobile first aid kits.

A needle with an enlarged region limits penetration depth to prevent heart tissue damage while ensuring precise injectate delivery.

Ramped introducer cannula aligns marker applier against interior wall to eliminate repositioning errors during biopsy site marking.

Hydrogel expansion anchors the biopsy marker against migration, ensuring stable position for accurate ultrasound detection.

A high frequency current application apparatus measures the first derivative of tissue impedance to dynamically adjust output power during thermal sclerosing.

A fat grafting cannula uses an impedance detection circuit to identify tissue type at the distal end.

A puncture device end with circumferential needle mounting assemblies enables automated placement of multiple electrodes.

A self-contained EEG patch integrates electrodes and circuitry into a unitary package for reliable signal acquisition.

A microwave energy delivery device uses coolant passage channels to remove heat from insulators during tissue ablation procedures.

An integrated gauss detection assembly monitors electromagnetic radiation from MRI coils to provide real-time field strength feedback.

Dielectric fluid in a retractable sheath absorbs microwave energy, preventing environmental radiation from the probe.

Deployable sensors extend radially from the ablation probe tip to monitor temperature gradients, preventing collateral damage to surrounding healthy tissue.

A self-expanding nickel-titanium member surrounds a lymph node to provide mechanical stabilization during translumenal extraction.

Wireless transceiver detects implants to interlace electrosurgical waveforms, preventing cross-talk interference.

A high voltage pulse generator delivers energy through insulated needle electrodes to subcutaneous tissue.

Automated needle feed and suction mechanisms reduce procedure time and patient discomfort during suprapubic bladder puncture.

A sensor applicator features a rotating base that transitions from an upright insertion position to a laid-flat configuration on the skin.

A cryosurgical probe integrates a heater element with a limited-capacity battery to warm refrigerant safely.

Real-time impedance monitoring tracks electroporation progress to resolve unpredictable treatment outcomes caused by variable tissue properties.

An ablation planning system selects probe parameters to visualize and optimize spatial tumor coverage.

Segmented needle drivers with friction clutches enable haptic feedback and accurate placement within tight MRI bore constraints.

A trocar sleeve applicator uses a sliding needle with a detachable nozzle head for precise substance delivery.

A biopsy apparatus converts tomosynthesis positions into stereotactic coordinates for precise needle insertion.