Stents TRIZ Cases

A protein and crosslinker coating forms an in-situ vessel scaffold to maintain luminal gain, reduce recoil, and lower restenosis risk.

A micro-textured elastomer-coated stent uses Wenzel-Cassie fixation to resist esophageal migration while limiting tissue trauma and ingrowth.

Series-arranged slack pockets isolate medical device line loops so tension can dispense slack without tangling, improving deployment reliability.

A balloon nosecone and helical-track actuator help deliver and position a prosthetic heart valve through vasculature with less tissue interference.

Detachable hubs and occlusion balloons improve small-intestine distention for accurate LAMS placement while reducing perforation risk.

Anchor members and a central divider keep adjacent vessels spaced, reducing mucosal overgrowth, migration, and buried stent syndrome.

A curved-tip sheath and dilator catheter crosses deployed stents to retrieve filters or balloons while minimizing snagging and vascular trauma.

A separate housing and valve structure enables percutaneous mitral replacement with stable placement and reduced paravalvular leakage.

Expandable transcatheter frames reroute pediatric cardiac blood flow while accommodating growth, reducing the need for staged open-heart surgery.

Rotating-arm crimping compresses an expandable sinus implant for precise low-profile delivery, then restores airway dilation and tissue support.

Optical fiber gratings track device shape and deployment in blood vessels, avoiding X-ray radiation and electromagnetic interference.

A braided intermediary spaces the outer shaft from a self-expanding stent, reducing friction during loading and outer-shaft retraction.

Different biodegradable regions and catalysts let the stent keep support during treatment, then dissolve into small fragments to reduce removal trauma.

A controllable proximal release assembly adjusts control-member length so a stent can be folded, verified, and released accurately at the lesion site.

An independently expandable balloon or arm mechanism applies axial force to open a compressed prosthetic valve with better implantation control.

Independent or simultaneous leaflet anchors improve mitral valve sealing, reducing regurgitation without open-heart repair.

A rack-and-gear handle controls sheath retraction in incremental steps, enabling one-handed stent deployment and reconstrainment.

Radially outward woven loops improve prosthetic valve sealing by conforming to annulus gaps and promoting thrombus formation to reduce leakage.

Radiographic markers and a friction gasket improve visual tracking, positioning, and stable release or retrieval of a blood flow guide.

Localized porosity and braided reinforcement let the stent balance flexibility, radial strength, flow diversion, and emboli coverage.

A staged paddle-guided release lets a self-expanding valve prosthesis partially deploy first, reducing jump, oscillation, and placement shift.

Plasma-modified stent graft surfaces improve aortic wall sealing, reduce thrombogenicity, and inhibit bacterial adherence in endovascular repair.

A PTFE liner, braided reinforcement, and outer jacket preserve lumen size while improving flexibility, kink resistance, and stent delivery.

Preheated gas and tuned guide-pipe dimensions stabilize temperature and flow for uniform non-metal permeation in complex metal workpieces.

Curved Y-links and segmented rings help a polymer stent bend through tortuous vessels while preserving radial strength and fatigue resistance.

An eyelet-guided side branch stent uses a partial-circumference extension to improve bifurcation coverage while reducing scaffold overlap.

A retaining-suture outer skirt lets a prosthetic valve stay sealed in use, then detach cleanly during explantation to reduce tissue trauma.

Variable spiral winding pitch gives the bile duct stent rigid support at stenosis sites while allowing smooth collapse and retrieval.

An outer-tube avoiding part guides the guide wire out of the delivery path, preventing tube clamping and shortening stent release time.

Magnetic guidance replaces guidewires and multiple catheters, enabling plaque treatment with lower vessel damage, infection, and blockage risk.

Variable spiral winding pitch and radiopaque reinforcement make the stent distal end and center easier to identify under X-ray fluoroscopy.

Patterned multi-yarn embroidery on a prosthetic valve outer skirt helps conform to irregular native tissue and reduce paravalvular leakage.

A variable-width rack slot and clip mechanism limit intermediate shaft deformation, helping maintain precise stent positioning during sheath retraction.

Axial protrusions create controlled balloon rupture paths during overinflation, preventing lateral tears and simplifying catheter retrieval.

A thicker band around each fenestration improves vessel wall apposition, reducing endoleak risk while preserving branch blood flow.

A micro-rough membrane surface cuts stent stickiness after storage, helping full endoscopic unfolding without costly silicon powder treatment.

An oligofluorinated inner graft surface cuts thrombogenicity while preserving synthetic graft strength for small vessel repair.

By isolating introducer friction from the sheath, the stability tube enables smoother capsule retraction and more accurate prosthetic valve placement.

A recessed end and tapered braided structure promote tissue coverage, lower thrombogenicity, and support easier LAA occluder deployment.

Surface openings feeding larger internal cavities help a dental implant hold medicine longer, speeding bone integration and healing.

Gradual self-expansion, reversible positioning, and magnetic anchoring help implant aortic valves securely when calcium is limited.

A nested inner and outer membrane captures embolic particles in a retrieval space while preserving blood flow during cardiac intervention.

Cross-braided segmental restraints improve distal pushability, radial support, and inner-wall fitting during vascular implant release.

An anti-migration anchor and suture tether secure a GI prosthesis in the pylorus while limiting tissue penetration, erosion, and infection.

A bioerodible fiber matrix wrap limits circumferential wall stress in vein grafts to reduce intimal hyperplasia and improve bypass patency.

A thread-controlled terminal stent ring enables precise prosthesis placement and expansion while reducing exposed-spring vessel injury and thrombus risk.

Grooved mandrels and constant-force carriers keep braiding angles consistent while cutting nitinol waste in atraumatic stent production.

A thumbwheel handle coordinates sheath retraction and stent pushing for one-handed, precise self-expanding stent placement and retrieval.

Electrical sensing tracks implanted shunt lumen size, enabling non-invasive adjustment and confirmation of patient-specific fluid flow.

An implanted ascending aortic conduit uses angled struts and a diverging flow path to cut pressure loss and improve cardiac output.