Surgical Needles TRIZ Cases

Integrated optical probe combines fluorescence detection with vacuum suction for precise tissue removal.

Angled cutouts on a biopsy needle body vent fluids and gases during withdrawal, enabling larger tissue sample collection without clogging.

A microwave ablation antenna uses a half-wavelength transformer to deliver energy.

A side-opening suction chamber draws mucosal tissue laterally to reduce perforation and burn risks during endoscopic resection.

A pivoting cutting needle traces a helical path through tissue to acquire larger sample volumes in a single pass.

A skin insertion mechanism uses an adhesive layer to secure a needle holder and trigger subcutaneous piercing upon application.

External surface markers enable image transitions across patient postures, compensating for soft tissue deformation during multimodal biopsy procedures.

Self-powered universal vacuum module attaches to generic biopsy devices, resolving complexity trade-offs while enabling direct pathologic characterization.

Segmented dynamic reference frames register image space to physical space, reducing invasiveness and improving registration accuracy during surgical navigation.

A hollow needle with a permanently embedded laser fiber prevents migration and tissue damage during percutaneous delivery.

A fluid body forms a clean light inlet window for the electrosurgical instrument to absorb spark emission.

Resealable airtight clips enable separate tracking of different gauze types, resolving the contradiction between visual confirmation and type isolation.

Multi-drive adapter assembly distributes loads across independent rotatable shafts, reducing rigid support requirements in powered surgical devices.

A state space model estimates internal body pressure from supply line data, resolving the trade-off between measurement precision and device complexity.

Offsetting locking portions prevents automatic engagement during pivoting, allowing secure locking via transverse force to reduce user fatigue.

Sharp tip penetrates cortical bone while anchoring device prevents relative movement, ensuring stable tracking precision during image-guided surgery.

An instrument tracker uses inertial measurement units to detect real-time position and orientation of medical devices during procedures.

Corkscrew cannulas with suction and scraping elements collect endocervical cells while reducing tissue trauma.

A two-cone collet grips hair shafts using vacuum suction to extract follicular cells while preserving the root structure.

A protective member shields a cryosurgical probe from electrolysis byproducts during combined tissue ablation procedures.

A waterjet apparatus fragments tissue to release intact stem cells, resolving the trade-off between efficient removal and nerve safety.

A cytology sampling system uses a steerable flexible shaft and deployable brush to capture cell samples from deep within lung tissues.

Electromagnetic induction heats magnetic particles in the fin strip to melt and bond it to the base tube, eliminating adhesive shelf life constraints.

A needle surface features ultrasound reflecting depressions to scatter acoustic energy for improved visibility.

A disposable test unit uses a moveable support member and capillary system to direct body fluid flow for analysis.

A two-shot molded optical obturator uses a cantilevered core pin to form the tubular shaft and optical tip in one step.

A radially enlarged dilator bump pre-dilates vessel walls, preventing sheath tip deformation and patient trauma during vascular access.

Self-adhesive hydrocolloid sheet supports an aspiration pouch for direct wound connection.

PTFE spacers replace hand-wound PEEK spirals to ensure consistent pitch and reliable operation.

A dimpled needle retains compressible fiducials via frictional engagement for serial deployment.

Absorbent beads swell to block openings, preventing leakage during site-directed gastrointestinal sampling.

A guide sleeve directs cooling fluid around the transmission line, preventing thermal damage to surrounding tissue during ablation.

Magnetic forces guide a surgical probe to precise kidney locations, reducing puncture time and tissue damage.

Inner ribs on a flexible tube retain markers of varying sizes, preventing unintentional fall-out and reducing deployment force.

An optical monitor measures sample transmittance to automatically stop formalin fixation, resolving inconsistencies in core needle biopsy processing.

A catheter securement dressing incorporates an access window for precise skin adhesive placement.

A medical tape manufacturing method applies a solution polymer to a film-forming base portion and peels the base away to reduce residual shrink force.

An integrated light source illuminates the joint capsule to verify needle placement before penetration, reducing tissue damage risk.

A biopsy needle cannula assembly uses a snarecoil and single biasing element for controlled forward projection.

A projector displays biopsy reference information directly on the imaging surface to keep medical workers focused.

A 90-degree elbow connector reorients stiff insufflation tubing to reduce sterile boundary breaches and slippage risks.

Slitted tube probes enable non-thermal ablation via electrical pulses, resolving thermal damage risks while maintaining maneuverability.

A pliable domed cover film isolates skin-placed medical devices from contaminants, and a porous foam layer transmits moisture vapor to prevent infection risk.

A microwave ablation applicator shaft uses segmented fibre reinforced plastics to transmit energy while maintaining structural integrity.

A wireless receiver-stimulator system uses temporary electrical connections routed through a delivery catheter to link electrodes with external monitoring equipment.

Irrigated ablation devices infer remote tissue temperature via thermal conduction during paused delivery, preventing steam pops without adding sensors.

A biopsy needle uses a ratchet handle to adjust inner needle throw length for controlled tissue exposure.