Surgical Needles TRIZ Cases
- Ergonomic Needle Driver Handle for Palm-Controlled Suturing
Palm-support members and an integrated ratchet reduce pressure points and fatigue while improving needle control during suturing.
- Integrated RF Ablation Cannula With Thermocouple and Fluid Injection
Integrated hub contacts let the cannula deliver RF energy, sense temperature, and inject fluid without removing a separate electrode.
- Pre-Formed Lumen Support for Kink-Resistant Heart Delivery Devices
A shapeable pre-formed member keeps heart delivery lumens open during bending, reducing kinking while preserving flexibility for tissue access.
- RF Neurotomy Needle Filaments for Offset Nerve Ablation
Deployable needle filaments create offset RF lesions that ablate target nerves while directing heat away from collateral structures.
- Cannula Seal Clamping in Ambulatory Infusion Pump Assemblies
A compressive seal expands to clamp the cannula carrier, improving insertion reliability in smaller ambulatory infusion pump assemblies.
- Adjustable Extremity Guide for Precise Fixation Wire Placement
Adjustable grouping members and sighting channels guide fixation wires precisely, simplifying extremity bone fusion and reducing implant complexity.
- Pivoting Needle Guide Platform for Accurate Ultrasound Puncture
A pivotable guide platform sets the needle angle on the puncture area, improving ultrasound-guided placement while reducing tissue damage.
- Bone Marrow Aspiration Needle Assembly With Depth-Limiting Sheath
An adjustable sheath sets a safe insertion depth while integrated filters improve bone marrow extraction and keep bone particulate out.
- Heel Bypass Needle Geometry for Straight, Low-Trauma Piercing
A bent heel and bevel geometry lets the needle pierce straight without angling, reducing tissue trauma, resistance, and patient discomfort.
- Prone Tomosynthesis Biopsy Geometry for Needle Artifact Avoidance
Independent imaging and stage-arm positioning enables prone breast biopsy with 360-degree access, fewer needle artifacts, and simpler setup.
- Percutaneous Access Guidance for Real-Time Needle-Scope Coaxiality
Sensor-based guidance visualizes needle and scope alignment in real time, improving percutaneous access while reducing reliance on radiation imaging.
- Spiral Core Shaft Rigidity Zoning for Flexible Hole Expansion
Varying spiral protrusion rigidity along a tapered core shaft preserves flexibility through bends while maintaining expansion diameter.
- Sternal Locator Assembly for Accurate Intraosseous Access
A removable sternal locator and retractable shield guide fast intraosseous placement while reducing misplacement and sharps injury risk.
- Tine-Style HFIRE Electrode for Spherical Ablation Without Muscle Twitching
Deployable tine HFIRE with an external surface electrode enlarges spherical ablation zones while reducing muscle twitching and thermal damage.
- Spring-Locked Medical Device Handle for Controlled Needle Actuation
A spring-loaded shaft and depression-based lock control needle movement, preventing accidental activation during insertion.
- On-Skin Sensor Applicator with Controlled Needle Insertion
A spring-driven applicator controls sensor insertion and retraction to make on-skin glucose monitoring more comfortable and practical.
- CGM Implant Trigger Channel to Prevent Accidental Firing
A guided axial trigger for CGM implantation separates actuation from grip force, reducing accidental firing without a safety lock.
- TIPS Access Kit with Stylet-Controlled Needle Curvature
Integrated stylets adjust needle curvature in situ, reducing repeated withdrawals and pathogen exposure during precise portal vein puncture.
- Multi-Axis Electrocautery End Tool With Independently Rotating Jaws
Fixed jaws limit intuitive control in laparoscopic surgery; independently rotating jaws add yaw and pitch alignment with integrated cutting and electrocautery.
- Inserting Member Lead-Out Device with Coaxial Perforation Guidance
A guided perforating member and connector maintain coaxial passage through tissue, reducing hole deviation and skin button displacement.
- RF Ablation Console for Ultrasound-Plane Probe Orientation
Electromagnetic sensors show the ablation probe relative to the ultrasound plane, while deployable stylets define the treatment border or cage.
- Aspiration Catheter Pressure Cycling to Prevent Clot Clogging
ROAR cycles vacuum and venting to oscillate the catheter fluid column, prevent clot clogging, and support complete thrombus aspiration.
- Full-Surround Antimicrobial Dressing for Catheter Site Inspection
A slit dressing opens around a catheter, then restores full skin contact while antimicrobial adhesive helps protect the insertion site.
- Transparent Dissector Cannula for Controlled Vessel Harvesting
A transparent dissector keeps the moveable energy tool visible during vessel separation, improving control while limiting unintended tissue damage.
- Biopsy Gun Slider Loading Mechanism for Smoother Carriage Motion
A branched guide and sliding selector load biopsy carriages sequentially, simplifying assembly and smoothing needle motion.
- Microwave Ablation Device Cycling for Interference Control
Temporally offset duty cycles alternate microwave ablation devices to limit interference and power use while preserving coverage.
- Flexible Microwave Antennas for Uniform Tissue Ablation
Flexible, low-profile antennas use shaping elements to redistribute microwave fields, creating uniform lesions with less invasive treatment.
- Dual-Stage X-Y Sliding Tables for Precise DBS Trajectory Alignment
A dual-stage slider independently moves and pivots an instrumentation column for precise DBS alignment through a burr hole.
- Intravenous CSF Shunt Delivery With Dilated Transdural Access
A stylet, dilator, and transdural catheter create guided venous access for CSF shunt placement while reducing tissue trauma.