Surgical Needles TRIZ Cases

Segmenting the computational module into a portable unit reduces surgical system complexity while maintaining reliable gas information surveillance.

Curved insert deforms medical needle tip to steer around tissue obstacles without increasing diameter.

Segmenting the feeding cable into different cross-sections reduces electrical losses while maintaining flexibility for navigating narrow anatomical pathways.

A handheld syringe generates ozone on demand to deliver sterile therapeutic agents directly into tissue.

A sliding manipulating unit commands therapeutic instruments along the insertion tube, reducing operator fatigue during precise lesion treatment.

Clearance between the stylet slider support and guide devices reduces transversal forces, preventing jamming during one-handed tissue sampling.

A multifunctional radiofrequency ablation needle system delivers precise septal treatment while integrating a retrievable vascular filter.

Torque generation component actuates a cutting assembly within an endoscope insertable portion to remove tissue.

A tissue collecting tool bag part adjusts opening width via a linear member to accommodate various tissue sizes.

A flexible catheter needle extends a shape-memory electrode into a helical configuration to treat deep lung nodules while minimizing pneumothorax risks.

A tunneling device uses a malleable member and interchangeable handle to create subcutaneous pathways for implant procedures.

Subintimal recanalization uses an expandable catheter that deflects its inner tube, making tissue piercing possible, addressing difficult true-lumen re-entry.

Rotating beak elements core varying-length tissue specimens, reducing trauma from multiple insertions.

A pivotable camera assembly adjusts the field of view within a rigid endoscope insertion shaft, eliminating frequent repositioning during surgery.

A gas recirculation pump moves carbon dioxide through a disposable cartridge and filter to maintain pneumoperitoneum during endoscopic surgery.

Heated tips create micro depressions while preserving the stratum corneum barrier, reducing infection risk and improving drug delivery efficiency.

Coupling a detection head to an excision tool eliminates correlation errors between imaging and tissue position during surgery.

A segmented drill bit uses insulated conductive couplers to measure tissue electrical impedance during surgical penetration.

A microwave ablation probe uses a variable length antenna to maintain effective energy transmission into tissue.

Segmented electrode leads deliver controlled radiofrequency energy to achieve homogeneous ablation zones in irregular tumor geometries.

A magnetic capsule endoscope orients a protruded needle using an external field generator to align the device for tissue puncture.

A one-piece plastic safety shield with a hollow stem and disc-shaped collar fits into the needle hub to guide biopsy needles.

Verifies surgical paths via intraoperative CT imaging to reduce brain penetrations and procedure time.

Semipermeable ring vents gas and blocks liquid flow, enabling precise bipolar electrode placement and reliable conductive fluid delivery.

An OCT sensor profiles tissue to guide instrument movement, preventing contact with sensitive structures.

A motorized biopsy driver uses a homing process to position drive members before needle installation.

A rotary closure drive mechanism transmits rotational motion to linear jaw actuation within a surgical end effector assembly.

Composite choke ring prevents backward microwave propagation while circulation water cools the needle head to avoid overheating.

An optic probe with a camera and fiber optics transmits real-time images of the thoracic cavity to confirm chest tube positioning.

A penetrating microelectrode array ablates tissue during insertion to form precise channels with controlled aspect ratios.

A medical treatment tool operator tube uses radial deformation locking parts to project and retract hollow needles through the endoscope channel.

An insertion device uses adjustable holding force to secure a subcutaneous sensor during placement.

RFID-tagged flexible shaft allows self-collection while sealable unit prevents contamination and ensures sample tracking reliability.

A medical particle storage tube uses a drug delivery portion to introduce liquid medicine into an accommodation channel for microparticles.

A medical sampling device uses a retractable wire with receptors to capture bioanalytes from blood.

A direct current application device uses constant current flow to deliver localized therapeutic effects.

An atraumatic tip shields the cutting surface of a flexible biopsy tool, preventing damage to internal channels while enabling larger tissue sample collection.

A flexible instrument antenna uses a movable fluid conduit to provide variable recoverable flexibility along the device.

A hollow support device retains circulating tumor cells via rigid filtration openings sized to their physical dimensions.

A vascular graft hub uses helical protrusions to secure the device directly to a blood vessel wall without external clamps.

Axial actuating tube drives pivoting head rotation via link guide mechanism, reducing lateral space requirements for surgical tool alignment.

A biopsy marker delivery device deploys markers via a push rod that transitions from flexible navigation to rigid deployment.

A polymeric bag protects moisture-sensitive hydrogel precursors during laparoscopic transfer, preventing premature reaction before deployment.

Cross-sectional slicing determines ablation volume to resolve measurement precision versus device complexity trade-offs.

Fiber-optic sensors measure pressure-frequency characteristics to locate needles during epicardial access, reducing ventricular perforation risk.

High-frequency needle vibration reduces insertion force and tissue deformation during medical procedures.

Shape memory alloy helical antennas dynamically adjust dimensions to compensate for tissue impedance changes, ensuring precise thermal ablation.

Active reflector elements transmit ultrasound pulses to resolve impedance mismatch between tissue and small diameter tools.

Radiofrequency energy shrinks pelvic tissue layers to restore anatomical shape while preserving sexual function and preventing urinary incontinence.