Stents TRIZ Cases

Segmented arterial sheaths with targeted fenestrations channel blood distally, mitigating limb ischemia during prolonged vascular access.

A bifurcated vascular connector secures auxiliary devices to peripheral arteries, reducing bleeding risks while maintaining laminar blood flow.

Mathematical algorithms predict device foreshortening and final configuration within arterial cavities to reduce procedural errors.

A nested balloon catheter design uses an extendible inner balloon and non-extendible outer shell to hold precise shape during invasive procedures.

A stent wire mesh uses a radiopaque core material within superelastic wires to improve visibility under radiographic monitoring.

Polymeric nanoparticles coat drug balloons to adhere to vascular walls via electrostatic attraction.

Telescopic stent delivery devices adjust to individual bile duct lengths, preventing reflux side effects and ensuring precise surgical placement.

Hydraulic delivery capsules control self-expanding mitral valve deployment, preventing axial jumping and leakage in non-circular annuli.

An endovascular stent-graft features an extravascular extension protruding from the vascular graft to provide external surgical access.

Segmented annular supports with alternating wave heights resolve the contradiction between radial strength and vessel adaptability.

A pusher guide wire uses a radially movable tubular member to navigate curved blood vessels without binding the catheter.

Segmenting the graft into a sutured collar and self-expanding stent minimizes bleeding from the suture line during total aortic arch reconstruction.

Segmented coupling elements maintain axial alignment during vascular navigation, preventing premature release and reducing mechanical fatigue.

A collapsible stent-valve transitions to an expanded configuration within a delivery catheter for precise cardiac implantation.

Expandable anchoring element secures a balloon catheter within a blood vessel lumen to maintain central alignment of an advancing boring tool.

A retroperfusion catheter system routes arterial blood to ischemic myocardial tissue via a venous-arterial recirculation pathway.

A stent delivery device uses a sliding locking member to constrain and release the implant.

Separate catheter ports deliver mixed biologic adhesive to stop bleeding while passive drainage prevents urinary retention.

Mid-strut interconnecting members balance hoop strength and longitudinal flexibility while reducing foreshortening in vascular implants.

High molecular weight PLA-PCL copolymers form bioresorbable vascular scaffolds with thin struts and sufficient radial strength.

A tubular stent skeleton incorporates a distinct stretch restriction portion to control axial deformation during radial expansion.

A segmented rigid mandrel holding device aligns and rotates hollow cylindrical stents with minimal surface contact to ensure precise positioning.

Halogenated phenolic moieties grant bioresorbable polymers the radiopacity needed for stent monitoring while avoiding permanent vessel occlusion.

Wireless energy transmission powers a stent-like pacing device, eliminating internal batteries that limit longevity and increase volume.

A medical apparatus uses a coupling member and contraction member to radially compress an intraluminal stent for safe retrieval.

A percutaneous tricuspid valve repair method uses a coronary sinus stent and tissue anchor connected by a longitudinal member to apply tension.

An implant isolates the left atrial appendage using an ablative ring and absorbent fill material.

Dual-layer balloon catheter elutes drugs via compliant outer member, reducing blood loss and vessel trauma during inflation.

An implanted resonant circuit absorbs radio-frequency energy to minimize tissue heating and pacing signal interference during magnetic resonance imaging.

A transluminal apparatus uses an elastic locking mechanism to adjust stent diameter and position.

Segmented pull-back sheath adapts to curved vessels while transmitting torsional forces.

Electrospinning creates precisely arranged porosity in stent grafts, eliminating complex post-manufacturing patterning steps.

Segmented inner and outer shafts with locking collars enable percutaneous heart valve deployment, reducing surgical invasiveness and recovery time.

Relative rotation of a flexible sheet compresses the prosthesis while limiting projections prevent over-compression and material damage.

A stent coated with 117mSn emits conversion electrons to treat vascular hyperplasia.

Distinct protrusion angles on asymmetric locking parts enable the stent to hold position in bent lumens while expanding to treat stenosis.

An elevated atrial dome anchors the prosthetic valve to prevent leaflet prolapse, preserving native tissue while enabling full replacement.

A barbed anchor secures to a stent strut via mechanical interference fit without thermal joining.

Internal thread guidance reduces friction during removal, solving the trade-off between secure anchoring and easy explantation.

Integrated anchoring structures enable reliable cardiac pressure monitoring while simplifying implantation procedures.

A TIPS stent graft featuring a balloon-expandable central section and self-expanding ends.

An aneurysmal repair device applies epoxy coatings to graft fibres near the stent structure to reduce wear and isolate fibre breaks, preventing endoleaks.

Integrated delivery catheters enable minimally invasive left atrial pressure monitoring, resolving inadequate early detection of congestive heart failure.

Segmented fenestration tubes maintain branch artery blood flow while the main stent bypasses diseased aorta sections, resolving blockage risks.

Temporary stent support enables secure amnion tissue delivery while eliminating permanent implant complications like thrombus formation.

Flexible bridging elements connect stent ring peaks to graft material, preventing blood leakage from unsupported flaps while preserving device compressibility.

A tubular fleece structure unfolds to deliver therapeutic agents via biodegradable polymer nanofibers.

Segmented sheath materials split longitudinally to resolve deployment precision versus removal difficulty across biliary obstructions.

A delivery catheter system positions a wire through a fenestration during deployment to establish a stable cannulation pathway.

A coil catheter system uses a swan neck design to enable efficient bladder drainage without external collection devices.