Stents TRIZ Cases

Varying-height stent segments in a branched stent graft accommodate complex aortic shapes while reducing endoleak risks.

Embedding a support structure in bacterial cellulose eliminates surgical sutures, reducing manufacturing costs and enabling smaller implant designs.

A medical device deployment handle uses a dual actuating mechanism to control vascular implant positioning.

A retractor device transforms a retrieval device from a deployed position to a delivery position through tubular channel advancement.

A stented valve uses friction-based crimping to secure a prosthetic component within an expandable support structure.

Open channels in the polymer stent body prevent migration and clogging by maintaining fluid flow, reducing extraction needs.

A conductive myocardial patch uses a knitted negative Poisson's ratio structure to maintain stable electrical conductivity during heart contractions.

Segmenting the prosthesis into independent elements reduces surgical complexity and procedure time while maintaining structural integrity.

A hydraulic flow diversion device uses a movable control component to direct fluid pathways for prosthetic heart valve deployment.

A patient-specific medical balloon forming system uses biometric data to create custom parisons matched to individual blood vessel geometries.

A catheter delivery device inverts stress transfer between a pull wire and sheath to deploy stents.

A coated balloon catheter transfers pharmaceutical agents to vascular walls upon inflation.

Self-expanding valve prosthesis resolves sealing reliability issues by anchoring securely in native tissue.

Segmented wall thickness in a stented vascular graft reduces intimal hyperplasia failure rates while simplifying anastomosis procedures.

Multi-layer helical wrapping balances force angles to prevent foreshortening, ensuring accurate placement and reducing vessel trauma.

A tapered flexible extension with an adhesive bead reduces sharpness and prevents catching on the prosthesis during removal.

Segmented shaft stiffness resolves pushability precision tradeoffs, enabling precise device placement without hemorrhagic risks.

Segmented slide bodies in the stent delivery handle reduce volume and weight while maintaining operational reliability.

A tubular graft prosthesis integrates a pocket to receive a microsystem, resolving the trade-off between continuous monitoring capability and device complexity.

Radiopaque bars in a flexible vascular band create a stable landing zone, preventing stent graft migration and endoleaks.

Nested stents adjust pulmonary blood flow cross-section post-implantation, resolving the trade-off between fixed efficacy and long-term adaptability.

A tapered cone perforator advances through stomach and duodenum walls to deploy a pre-loaded stent in one continuous motion.

A detachable carrier uses a compressible distal portion to engage and release embolic coils within body vessels.

A self-expandable stent lattice structure uses a composite wire with an X-ray visible core and superelastic jacket to balance visibility and expansion forces.

Interconnected serpentine bands with alternating straight and s-shaped struts enhance crimpability while managing structural complexity.

Nesting operation wires inside the inner-side tube lumen prevents outward projection, reducing insertion resistance against catheter walls.

Periodic suction and ejection of heating liquid via a vibration device maintains uniform balloon surface temperature, reducing procedure time.

A vascular device uses a functionalized surface with double or more charged ions to reduce protein adsorption and thrombus formation without complex coatings.

A stent design featuring a helical central section and tapered ends to ensure smooth deployment.

Dynamic pivotable fenestrations enable a single prosthesis geometry to accommodate variable patient anatomy and ensure effective branch vessel sealing.

A medical stent transitions through an intermediate unloaded configuration to distribute deformation across its structure.