Stents TRIZ Cases

A TIPS stent graft divides its lumen into separated sublumens to enable selective occlusion and precise blood flow regulation.

Elastomeric interconnecting struts link high-strength polymeric rings, enabling multi-axial flexibility and radial strength for dynamic vascular loading.

Segmented catheter compliance allows accurate force transmission during deployment while maintaining flexibility for navigating patient anatomy.

A coronary stent uses conformal bioabsorbable polymer layers to deliver crystalline active agents directly onto strut surfaces.

Continuous stitching merges discrete anchor points into one thread, reducing graft perforations while maintaining structural integrity and stress distribution.

Creased lobes on a biliary stent expand into exterior channels that reduce clogging during bile drainage.

Segmented haptic feedback modules isolate tactile indicators from actuating mechanisms, preventing damage during prosthesis loading.

Axial ridges on the outer shaft maintain rotational alignment between the guidewire lumen and rapid-exchange port, preventing stent rotation during deployment.

An expandable pulmonary artery stent uses a circumferential expansion design and drug delivery system to treat stenosis while preventing in-stent restenosis.

Segmented filamentary connections managed by individual hooks prevent jamming and breakage within the support structure.

Tapered sleeve engagement contracts the protector to enhance trackability.

A minimally invasive anastomotic connector eliminates graft material by joining the radial artery to the cephalic vein via a self-expanding interference fit.

Segmented stent frames with flexible membranes restore blood vessel compliance, improving cardiac perfusion without rigid structural constraints.

A delivery catheter advances self-expanding springs into tubular organs to deploy implants that apply axial force.

A covered flow-diverting stent redirects blood flow away from aneurysms using a specialized material layer.

An inflatable insertion device uses a retractable internal member to invaginate its distal end, enabling precise percutaneous positioning of prosthetic valves.

An interventional catheter applies positive electrical charges to attract negatively charged blood components and secure thrombus attachment.

A flow-regulating luminal endoprosthesis uses a turned-over mesh section to form coaxial structures.

Segmented anchor members penetrate soft tissue while deformable compliant portions adjust to dynamic heart movement, enabling stable implantation.

A fracturable coating locks bent fibrils in an extended state under tensile force to create permanent dimensional changes.

A nozzle releases a high-pressure fluid jet to cut calcified tissue and stents inside blood vessels.

Interwoven hydroxyapatite and biodegradable polymer fibers form a vascular stent scaffold that reduces foreign body reactions by resorbing after healing.

Curved bridges connect adjacent hoops in a self-expanding nitinol stent, distributing strain to prevent collapse in carotid arteries.

Interwoven strand joints limit disengagement to maintain vessel apposition and reduce trauma in tortuous anatomy.

Variable pitch reinforcement prevents buckling in stenosis while enabling end crushing for retrieval.

A stent delivery system uses a proximal sealing member between inner and outer tubes to prevent fluid penetration.

Segmented sheath geometry prevents scaffold recoil during storage and enables safe manual removal without damaging the device.

Segmented expansion forces in the stent prevent jumping during release, ensuring accurate placement at the affected area.

Link structures reverse coil winding sense between segments to fill gaps and reduce restenosis.

An implantable damping device absorbs pulsatile blood energy to reduce arterial pulse pressure, slowing dementia progression by mitigating vascular stiffness.

Magnetically controlled pump delivers chemotherapeutic agents directly into cerebrospinal fluid via an implanted breather mechanism.

A valve rim incorporates a mesh reinforcement member to prevent stitching tearing and maintain shape retention.

Segmented marker portions tilt radially via bent linkages to anchor into blood vessel walls, preventing position shifting in moving limbs.

A stent expands its radius with length to maintain constant conductance and increased flow rates.

Non-covalent bonding between polymer blocks enables tailored drug release rates, resolving the trade-off between structural strength and release versatility.

Disposable protective sheaths prevent cross contamination during automated stent repositioning, eliminating manual cleaning and reducing labor intensity.

Flexible expandable side branches align precisely with branch vessels, reducing operation time and radiation exposure.

A cascaded spatial transformer network separates stent images from background layers using pre-trained neural inference.

An inflatable cuff expands against vessel walls to seal varying anatomies, reducing endoleaks without increasing procedural complexity.

A two-piece sheath assembly applies radial constraint to a crimped polymer scaffold on a catheter balloon.

Segmented hydrophobic and hydrophilic polymer layers prevent drug washaway during translation, ensuring consistent therapeutic delivery.

Retaining elements prevent main vessel protrusion and thrombi formation by ensuring accurate bifurcation positioning.

A stent-graft uses a fracturable coating to enable permanent dimensional extension via tensile force.

An off-center support member expands non-coaxially to anchor a self-expanding stent, preventing jumping during deployment.

Implantable endovascular sealing device maintains hemostasis during prolonged catheter presence by self-sealing the vessel wall breach.

Rotating tension wires bend stent wire to form precise waveforms, preventing deformation during the manufacturing process.

A protuberant aneurysm bridging device spans vascular bifurcations to maintain blood flow patency while securing embolic coils within the aneurysm sac.

Segmented undulating nitinol rings maintain columnar strength while enabling flexible vessel wall engagement to prevent aneurysm pressurization.