Surgical Needles TRIZ Cases

Tape stripping collects skin cells, which hydrogen peroxide converts to PTCA for HPLC/MS/MS quantification without invasive biopsies.

A microwave antenna array processes scattered signals to guide an ablation needle.

Fiber optic connection circuit mitigates leakage currents by replacing electrostatic shields with optical signals, reducing device complexity.

Integrated tubes guide needles to anatomical landmarks, reducing reliance on skilled technicians and lowering costs.

Adhesive electrodes enable preoperative nerve stimulation testing without invasive surgery.

Segmenting fat layers into discrete thermal zones via moving cannulas prevents seroma and skin burns caused by continuous whole-layer coagulation.

Thermal activation of low-temperature adhesive allows spring ejection, preventing coil dislodgment during vascular navigation.

Segmented magnetic components enable real-time tip tracking, resolving visualization gaps during vascular access procedures.

A rotatable tissue sample holder with indexed trays enables selective positioning of bulk and individual specimen chambers within a biopsy device.

An integrated biopsy imaging rod combines targeting, sampling, and marker deployment to eliminate separate sterile devices and reduce procedural complexity.

Dual transducer arrays emit planar beams while light sources project intersecting lines to resolve reliability issues in continuous instrument direction.

Reverse-curving tungsten alloy surgical needles prevents plastic deformation at low stresses, maintaining high bending stiffness during procedures.

A needle electrode array positioned by a central fixator delivers fractional RF energy to contract peri-urethral collagenous tissue.

An extendible needle electrode enables precise tissue dissection while retracting to prevent clogging and maintain continuous suction flow.

Segmented sampling chambers isolate tissue samples from compression while a transfixing member transfers them into a collecting chamber.

Adjustable inductors and capacitors minimize standing wave ratio to maximize power transfer efficiency despite manufacturing tolerances.

Segmented attachment tools connect to implants while a force limiting mechanism prevents tissue damage during blunt separation.

A catheter tip with a continuous compound curve orients the wire guide toward the bile duct.

Segmented rotation assemblies with ratchet mechanisms resolve positioning precision versus complexity trade-offs in minimally invasive surgery.

A movable electrode retracts within a sheath to expose distinct treatment segments.

A tissue collection cartridge integrates a sealing latch and visual fill indicator to manage vacuum suctioned biological samples.

A curved hollow needle navigates around physical obstructions during medical insertion.

A core biopsy needle uses a saw tooth movement pattern to extract tissue samples efficiently.

Replacing saline balloons with a spring-loaded mesh eliminates rupture risks while maintaining precise puncture placement.

A sterile tissue marking applicator uses a valve to control dye flow from its reservoir to the tip.

A robotic biopsy system uses a U-shaped head to position needles with CT guidance.

A fistula pad uses a silver-containing absorbing layer to accelerate hemostasis and reduce bleeding time.

An end effector debrides fistula tissue and harvests specimens for therapeutic injection.

A robotically controlled implantable unit dynamically adjusts vocal cord shape and position via transcutaneous micro-actuation.

A biopsy device uses a rotating cutting element to engage an oscillating distal tip for tissue penetration.

Deformable electrode assembly retracts and extends within a catheter housing to cover larger treatment areas.

Nested inner and outer cannulas enable one-handed operation for complete core sampling while minimizing pain and structural bulk.

Movable localizers on instrument guides and fixators resolve interference from metal objects while maintaining reliable electromagnetic tracking.

A micro-lipo needle device uses a vacuum interlock to lift tissue into a cavity for controlled harvesting.

Stiffening rods prevent lateral deflection of flexible coils, ensuring precise electrode placement and uniform tissue ablation.

Needle-free insertion twists an inflatable penile prosthesis through dilated corpora cavernosa, avoiding glans puncture, discomfort, and prolonged recovery.

Segmented punctures and nested delivery minimize skin incision size while enabling direct cutting of the flexor retinaculum from below.

Heat treatment at 470°C memorizes the curved profile, while chemical cleaning removes oxide layers to maintain super-elastic properties.

Extra-capsular nylon filaments stabilize the canine stifle joint by distributing mechanical loads across multiple independent pathways.

Longitudinal outlets distribute botulinum evenly around the tendon membrane, preventing swelling.

A variable distance electrode assembly adjusts spacing between movable and stationary electrodes to control ablation depth.

Nested tubular members and a moveable deployment funnel enable fluid flushing to reduce tissue trauma during leadless pacemaker placement.

Selective rotation of an ultrasonic blade against a fixed pad balances cutting speed with precise force control for effective hemostasis.

Integrated extraction syringe links directly to an analysis unit containing reagent receptacles for immediate synovial fluid testing.

Rigid protrusions on an elongated member scrape vessel walls to increase sample yield while minimizing tissue damage during minimally invasive procedures.

A scissor-like instrument circumscribes a chest drainage tube using a curved ramp to guide insertion into the pleural space.

Cam mechanism drives linear needle reciprocation, preventing skin damage from non-linear motion and reducing vibration.

A catheter system featuring an expandable electrode array and a central working channel for ancillary device deployment.

Extruding a tapered swab stem with varying wall thicknesses eliminates injection molding parting lines that irritate tissues.