Surgical Needles TRIZ Cases

A perforating trocar combines a segmented helical tube with a rotating drill tip for efficient bone penetration.

Short high voltage pulses ablate spinal nerves via electroporation, reducing procedure time and thermal damage to surrounding tissues.

Occluding balloons compress lung tissue to reduce air volume, enabling effective radiofrequency energy delivery through the bronchial route.

An ultrasound-guided needle extracts tissue samples consistently, reducing user variability in fine-needle aspiration procedures.

Pneumatic actuators eliminate electromagnetic interference in MRI scanners, enabling precise brachytherapy seed injection without image distortion.

A sterile dressing secures an IV catheter using a hydrocolloid adhesive and clear film to stabilize the device.

A treatment planning module generates 3D volumes using conductivity ratios.

Segmenting the electrode array with independent power supplies targets dermal heating while preventing epidermal damage from excessive energy accumulation.

A laser generator transmits 690 to 980 nm wavelengths through a spinal needle to target pain nerves.

Shaft translation decouples linear motion from the robotic arm, reducing swung mass and increasing working space.

Segmented wells and a cutting tool separate blood clots from tissue cores, preventing specimen fragmentation during transfer.

A dual-path exoscope merges fixed and variable focus images via a beamsplitter to overcome the shallow depth of field trade-off in high-magnification surgery.

A catheter with an internally threaded lumen engages helical grooves on fiducials to enable precise rotational advancement.

Integrated cutting, maceration, and sizing mechanisms in a single rotating tip reduce procedural time by eliminating separate laboratory processing steps.

A fluid-cooled antenna assembly uses a feedback control system to regulate coolant flow rate based on real-time temperature data.

Offset slot retainer tabs constrain flexible electrodes within a hollow tube to prevent displacement during precise nerve targeting.

An atraumatic grabbing element wraps the pericardium without cutting, creating a secure access space between layers while preventing tissue damage.

Inflated balloon stabilizes transseptal insertion device against cardiac interatrial septum, preventing accidental puncture during precise dilator advancement.

Expandable cytology brush with radially extending projections adapts to irregular duct surfaces for controlled tissue sampling.

Intravascular imaging assembly guides vascular access formation with precise vessel localization.

Segmented expandable bodies in a bone tamp adapt to irregular lesion shapes, enabling precise cavity creation for reinforcement material.

A surgical pencil integrates a removable lighting device and suction channel into one handheld instrument.

Segmented shafts use carbon fibre for stiffness and non-conductive tips to prevent overheating during ablation.

Nested cannulas and a spring mechanism enable sequential tissue removal in one insertion, reducing procedural time and patient trauma.

Nested telescoping tubes and a frangible preservative capsule resolve device complexity while maintaining sample integrity during transport.

A tissue treatment system uses a pump assembly to deliver saline through an ablation probe for precise fluid control.

Separating alignment from piercing via a sterile disposable cartridge reduces operator contact with contaminated parts and minimizes infection risks.

An endoscope instrument combines needle and sphere electrodes within a single flexible insertion section to enable rapid switching between dissection and coagulation modes.

A rotating holder moves a needle and cannula to enable precise liquid medicine injection.

An injection activation device applies high-speed motive force to a flexible biosensor, enabling transcutaneous penetration without a rigid introducer.

A thermoablation probe uses a shape-memory wire to deploy along a predefined curvature axis within a rigid sheath.

Segmenting the handheld probe from the vacuum module eliminates cumbersome tethering while enabling adjustable pressure for precise tissue sampling.

A carry case uses a movable flap to reconfigure interior volume for portable analyzers.

A biopsy device maintains optical sensing position at the tip using a movable fiber body within a hollow shaft to resolve source-detector distance constraints.

Friction rollers in a motorized drive actuator automate biopsy tool movement, reducing procedure time and bowel puncture risk.

Segmented electrodes nested in movable sockets dissipate heat and reduce breakage risk while simplifying assembly via laser welding.

Segmented bridge design allows incremental compression adjustment to accommodate variable anatomical gaps and reduce inventory complexity.

Segmenting the elongated element into two shorter pieces resolves the length versus ease of bending contradiction in biopsy guns.

Cable-guided wrist assembly pivots electrosurgical end effectors, eliminating manual handle modifications.

A dose planning system links biopsy locations to tissue characteristics via a spatially annotated map.

Harmonic surgical instrument collects biomarkers via cantilevered beam sensors to assess tissue trauma during procedures.

Integrated endoscopic instrument merges power-driven cutting with vacuum aspiration to remove polyps efficiently, reducing procedural time and sample bias.

A disposable tissue visualization device uses optical elements to capture internal images through a minimally invasive probe.

Resonant mirror scanning via flexible hinges illuminates confined spaces, resolving structural stability versus access flexibility trade-offs.

Nested endoscope within a bendable guide provides real-time thoracic visualization, preventing organ damage and ensuring accurate chest tube positioning.

A passive RFID tag embedded in a medical implant responds to reader signals with a unique identifier for reliable wireless identification.

A solid dose injection device uses a retractable blade to create a skin pathway for drug formulation delivery.

Handle-mounted sensors detect actuator movement to construct virtual reality models for precise surgical navigation.

Segmented catheter isolates target area using independent lesion wires, reducing collateral damage to healthy tissue during ablation procedures.