Diagnostics TRIZ Cases

A surgical instrument assembly directs tools along a fixed curvilinear trajectory to maintain precise positioning during minimally invasive procedures.

Tripod projections stabilize a cutting guide on bone, eliminating cumbersome alignment rods.

Packs patient autograft cancellous bone into the intramedullary canal using prosthesis-shaped tamps to create a precise implant cavity.

Reference tabs on a shaft provide visual markers to estimate internal thoracic artery length through small sub-xiphoid incisions.

Deformable retention features provide a friction fit between staple drivers and cavities, resolving alignment precision versus device complexity trade-offs.

A control circuit detects distal conductive element contact with an ultrasonic blade and adjusts applied power.

A self-expanding permeable shell blocks blood flow to promote thrombus formation.

Segmented reusable handles and disposable loading units reduce manufacturing costs while maintaining functional reliability.

Cam mechanism replaces visual scales to eliminate parallax errors and improve reading accuracy during tibial resection.

An injection needle uses a deployed web member to constrain insertion depth, preventing fatal catheter tip perforation during fluid medicament delivery.

A fatigue testing system uses a linear actuator and rolling diaphragm to pressurize fluid through prosthetic devices.

A bioabsorbable scaffold supports tissue engineered skin containing hair follicle progenitor cells for precise implantation.

Automated RFID tracking prevents infection spread by enabling real-time location monitoring and immediate recall of contaminated tools.

A surgical drill assembly uses a ratcheting sleeve to lock a depth collar, ensuring precise bone recess formation.

Image processing derives tool pose from fiducial markers, resolving occlusion issues in minimally invasive surgery.

A stereotactic needle guide uses a falling arc mechanism to accommodate respiratory motion during image-guided procedures.

A self-resonant inductor integrated into an implantable lead attenuates MRI radio frequency energy, reducing induced currents that cause device overheating.

Nested upper jaw moves axially through lower jaw passage to maintain compression force and stiffness despite reduced instrument size.

Electronic pulse system ensures reproducible impulse energy despite power source fluctuations.

A battery powered electromagnetic tissue compression device magnetically draws together to clamp intestinal tissue.

A surgical robotic system detects pre-disengagement actions using head stability trackers and pressure sensors on input devices.

Nesting an elastomeric bag within a rigid housing resolves the trade-off between low permeation reliability and high manufacturing cost in pump systems.

Continuous floor tracking compensates for base shifts, eliminating recalibration delays and maintaining navigation accuracy.

A ring with receiving portions aligns with a cartridge of fasteners to puncture tubular structures and secure a leak-proof connection.

A controller calibrates surgical instruments by analyzing video streams from robotic cameras to determine positional alignment factors.

Segmented handle and shaft design enables efficient sterilization while usage tracking sensors prevent over-deployment of the ultrasonic blade.

An implantable prosthetic flow modifying device employs a collapsible flexible member to restrict retrograde venous flow while maintaining forward circulation.

Segmenting critical vital signs from full records allows reliable monitoring over intermittent wireless connections.

A computational system visualizes hip implant cup liner orientation to balance range-of-motion and jump distance.

A modular femoral sizer system establishes a stable reference point on the distal femur surface using an integrated drill guide for precise component sizing.

Variable gauge factor strain gauges maintain signal amplitude during firing, resolving integration complexity in tight surgical instrument spaces.

A mobile tracking system determines spatial position and orientation of bodies using lightweight portable components.

Orientation sensors determine surgical equipment alignment relative to patient limbs, reducing tracking system complexity and improving procedural precision.

A laser irradiation device uses a microlens array to generate multiple independent focal spots for parallel skin treatment.

A deformable medical lumen maintains a flat inner surface, sustaining suction force for efficient stone capture despite structural shape changes.

A system generates an electronic medical badge containing a 2D barcode for vaccine data display.

An external navigation array replaces internal electronics, enabling automatic instrument identification and reducing device complexity.

A variably engageable coupling shunts excessive motion in hydraulic surgical instruments using a spring mechanism.

Preload springs eliminate backlash in the actuator interface, ensuring predictable torque transmission during precise surgical procedures.

Processing unit detects instrument position errors to present out-of-view indicators for teleoperated medical tools.

A medical fixation device connects surgical retractors to an operating table via rotatable elongate elements.

An integrated disposable driver merges the drive shaft and body to transfer higher torques without piecemeal drivetrain complexity.

Former depressions embed surgical instruments within polymer coatings, maintaining barrier integrity while adding multi-functional capabilities.

Solid metal encasement protects passive RFID transponders from harsh sterilization environments while maintaining precise signal coupling.

A sizing guide system positions parallel guide wires against the femur to enable precise implant placement.

A transfer needle assembly uses a sliding inside guide member to house the puncture tip within an outside guide skirt.

A movable RFID reading unit scans item identifiers within the treatment chamber to enable contact-free identification.