Stents TRIZ Cases

A bioresorbable stent assembly with retention devices maintains contact between tubular organ sections to promote healing.

A preset guide wire with double soft heads guides a long sheath and catheter through an inner branch to deliver a stent.

Ring-shaped loops on a fixing wire maintain the stent in a contracted state, preventing displacement by blood flow resistance during insertion.

Balloon catheter system integrates optical fiber and laser generator to repair vascular wall tissue, preventing restenosis and neointimal proliferation.

A positional information display device derives distance and angle between preoperative and intraoperative positions using a common coordinate system.

Segmented crimping tool prevents kinking and sliding of short prosthetic heart valves by applying balanced radial forces through multiple independent units.

A fluid-permeable substrate holder delivers differential precursor chemicals to interlaced structures during atomic layer deposition.

Steerable catheter positions prosthetic valve at aortic annulus via transapical access, reducing patient trauma compared to open-heart surgery.

Expandable cover porosity enables sustained drug release through the biocompatible matrix, reducing restenosis risk and maintaining therapeutic vessel patency.

An integrated pump control unit merges the pump and valve into one housing, reducing part count while directing air flow for anal irrigation.

Segmented display with color-coded LEDs reduces mental effort to interpret inflation pressure values.

Segmented sheath design balances constraint force and compliance, enabling precise retrieval of support frames without displacement risks.

A stent design uses sinusoidal struts and segmented joints to maintain radial strength while accommodating vessel curvature.

Trigger wires maintain circumferential sutures to prevent migration during partial deployment, enabling precise positioning near branch vessels.

A zinc alloy implant uses a polymer coating with complexing agents to bind free ions.

A prosthetic mitral valve anchor assembly self-expands to conform to the native orifice and compress cardiac tissue.

Kirigami stents deploy drug depots circumferentially via pneumatic actuators to reduce restenosis from inefficient delivery.

A degradable constraining part releases a filtering mesh to convert the device into a tubular stent.

Aligned inner and outer guide channel members with a stepped profile prevent kinking and misalignment during rapid deployment of self-expanding stents.

Selective end release via independent trigger wires enables branch artery access during deployment without losing proximal control.

Segmented tracheal stent design combines polymeric coverage with bare nitinol struts to prevent migration while biodegradable fins reduce removal trauma.

Segmented sheath fingers compress for tortuous tracking then expand to deploy devices without entanglement.

A self-expanding stent uses a polygon transition zone to achieve uniform expansion and high radial strength.

Segmented wave loops combine fixed joints with suspended contacts to resolve the stability versus flexibility trade-off in self-expanding stents.

A self-expanding vascular implant delivery system adjusts longitudinal tension to control radial expansion and contraction.

A shock strut monitoring method calculates dissolved gas moles using pressure, temperature, and stroke data to determine servicing conditions.

A medical stent surface receives a controlled carbon layer to support uniform bioactive material deposition without polymer matrices.

Flexible films shield the drug-coated area from a processing guide, preventing cross contamination during automated relative motion.