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.

Segmented chambers within the device enable multi-site delivery via one insertion, eliminating repeated tissue trauma and foreign material transfer.

A dual-purpose sampling device collects urethral mucosal cells and epithelial cells using distinct brush components on a single handle.

Segmented 20 gauge cooled radiofrequency probe with a curved distal tip navigates tissue obstructions while maintaining lesion size comparable to larger probes.

Segmented collection devices with aperture screens separate effluent from tissue specimens, preventing mislabeling and preserving specimen integrity.

A surgical instrument integrates high-intensity LEDs with absolute orientation sensors for precise alignment.

An endoscopic cryoablation catheter uses a steerable probe to freeze pancreatic tumors.

A specialized tool with a clasp and barrel secures deflated penile prosthetic cylinders, eliminating needle puncture risks during implantation.

A flexible necked tunneling tool creates subcutaneous pathways using resilient movement to navigate anatomical curves.

A tissue tunneling device uses a blunt distal tip and retractable needle for precise catheter placement.

Segmented guidewires with radiopaque markers enable precise distance measurement under fluoroscopy, reducing radiation exposure and implant sizing errors.

Segmented ground pads with impedance feedback manage current distribution to prevent localized overheating and skin burns during high-power tumor ablation.

A medical handpiece uses a dual fixing element to exert holding force on the adjusting element, securing the sliding part position.

An image guidance system integrates biopsy and treatment procedures using a unified needle calibration interface.

A surgical robot guide tube uses optical tracking markers to determine instrument depth without x-ray imaging.

A surgical needle employs a dynamic stylet that extends past the bevel tip to protect delicate structures while enabling controlled hip joint access.

A fixating spike member secures ear tissue samples to prevent slippage, then shatters inside the container to avoid obstructing laboratory processing.

Collapsible leg deforms to capture samples, preventing mechanical damage during biopsy extraction.

Microwave field-detecting needle assemblies use rectifier elements to convert electromagnetic energy into electrical signals for real-time monitoring.

A catheter control handle uses a threaded member and adjustment member to advance stiffening wires internally.

A tubular sheath and sliding rod system extracts perilymph using a porous capture support for precise biological sampling.