Stents TRIZ Cases

Varying apex-to-bend distances and spaced barbs prevent tangling during deployment while maintaining compact radial compression.

Segmented stent cuffs enable accurate catheter deployment while minimizing patient trauma during minimally invasive procedures.

A bifurcation stent features a side hole for catheter passage and expands via dual delivery shafts.

Electrified wire cuts stent graft material to create precise fenestrations, minimizing procedural damage and enhancing durability.

A self-deformable inflatable balloon with a sleeve mechanism maintains carrier orientation within body lumens, preventing imaging field deviation.

A nested catheter system deploys a stent retriever and balloon to restore blood vessel patency without device retraction.

A heart valve uses a temperature-responsive memory shape element to expand and secure itself within a blood passage.

A tubular lattice vascular implant combines self-expanding and balloon-dilatable regions within a single hollow cylindrical structure.

Segmented stent pores loaded with shield gas prevent clogging, enabling controlled release profiles without increasing vessel wall trauma.

A tubular self-expanding medical device uses a composite polymeric coating to deliver therapeutic agents while maintaining structural integrity.

An expandable stent graft uses a sheath side aperture and an aligning member to position the device at the aneurysm mouth, preventing branch vessel blockage.

Segmented stent wire ends prevent catheter entanglement during deployment while maintaining vessel wall protection.

Non-circular catheter lumens constrain pusher wires to orient differential porosity stents, preventing rotational drift and ensuring accurate aneurysm coverage.

Double thickness hooks form a receiver for snare engagement, enabling retrieval without compromising blood flow dynamics.

Parallel mandrel channels direct coating material to the abluminal surface, preventing deposition on non-target areas.

A pivotable fenestration rotates to align with branch vessels.

Spray-deposited biostable fleece on a vascular support prevents plaque rupture and vessel wall proliferation by creating a selective barrier that retains cells.

Support extensions on the delivery tip prevent strut crossing and infolding, ensuring accurate positioning of the compressed stent frame.

Mandrel and rollers press radiopaque markers into stent struts, preventing dislodgment during crimping.

Pre-straining superelastic nickel-titanium medical devices with compressive and tensile stresses exceeding 9% strain amplitude.

Segmented control members enable detacher relocation in confined spaces, resolving the trade-off between vessel navigation and precise implant positioning.

A pneumatic operating mechanism contracts an air vessel to retract a sheath over a delivery catheter.

Fixture assemblies control tubular implant positions to resolve reproducibility issues in fatigue testing.

Strain-concentration modules distribute radial compression stress across segmented stent bands to maintain structural integrity during deployment.

A titanium-free Co-Ni-Cr-Mo alloy core wire improves kink resistance by increasing yield strength.

Axial shafts restrict medical device movement within a closed lock space, preventing tissue injury from impulsive expansion forces.

Radial folds create discrete pockets to boost carrying capacity while limiting device complexity.

Closing wire ends into loops prevents embedding and thrombus formation at stent ends.

A telescoping medical device packaging system uses a frangible closure seal and internal stiffener to enable sterile access.

Segmented diamond-cell stent with outward-protruding wire anchors secures fixation in calcified annuli, eliminating open heart surgery risks.

Segmented implantable electrodes stimulate erectile tissue to increase blood flow and promote engorgement.

A right ventricle pulmonary artery conduit uses self-expanding discs to anchor without sewing.

Segmented multi-lumen stent isolates drainage pathways from nutritional contents, eliminating external vacuum requirements for effective abscess management.

Segmented support stents enhance conformability and patency in tortuous anatomies.

A proximal extension bends to a predetermined angle, separating from the delivery tube to release an embolic implant.

Resilient orientation members engage vessel walls to rotate the head member, resolving poor orientation precision in complex delivery systems.

A stent with an upstream nozzle and downstream diffuser accelerates blood flow to reduce pressure in body lumens.

A delivery catheter integrates imaging and position sensors for precise endoluminal device placement.

Segmented handle assembly with rotary dial prevents premature prosthesis deployment during sequential implantation.

Segmented balloon design treats main vessel blockages while protecting branch vessels from damage.

An interwoven filament mechanism pulls stent crowns radially inward, enabling repositioning or removal with minimal patient trauma.

A catheter stop member constrains stent deployment on an expandable member, preventing vessel trauma from balloon overhang during positioning.

Adjustable lattice density in a flexible braided stent minimizes aneurysm rupture risk while preserving adjacent tissue perfusion.

A living hinge flares an ostomy implant against intestinal walls, preventing leaks and skin irritation without adhesive bags.

A linking device holds two balloon catheters in a side-by-side configuration to prevent premature stent dislodgement during bifurcated vessel treatment.

An auger-style deployment system advances a stent via rotational motion, eliminating trigger wires that cause crimping damage and high deployment forces.

A compliant vascular stent graft uses a knitted fabric and elastomeric layer to achieve radial expansion and recoil.

Braided tubular member terminates into marker bands to maintain an open lumen, preventing wire unraveling and device malformation during collapse.

Crystallizing water-insoluble drugs inside porous ePTFE vascular grafts prevents thrombosis and intimal hyperplasia without systemic side effects.

A kissing balloon assembly uses a holding element to secure the second balloon distal end and form a smooth kissing surface upon inflation.