Blood Vessels TRIZ Cases

A branch tube, valve, and ligature enable bloodless vascular anastomosis without prolonged clamping, reducing flow interruption risks.

Mechanically active tines use shape memory or elastic actuation to secure tissue-to-conduit coupling without sutures, reducing procedure time.

Porous multilayer grafts with macropores and biofragmentable layers support tissue ingrowth to improve small-vessel patency and remodeling.

A porous membrane stent graft restores lymph flow after node dissection, helping prevent lymphoedema and seroma while enabling drug delivery.

A tethered filter with upper and lower stabilizers captures emboli larger than 50 µm while anchoring in the aortic arch to protect secondary arteries.

Mechanically actuated tines secure tissue-to-device coupling without sutures, reducing procedural time and suture-related complications.

Mechanically active tines replace sutures to secure anatomical tissue and device couplings while reducing procedural time and complications.

An everting ring with distributed pins connects tissue quickly, reducing hand suturing while supporting reliable, reversible anastomosis.

Shape-memory or superelastic tines deploy from a connector to secure anatomical tissue without time-consuming suturing.

This case shows how double expansion creates elastic wavy fibrils in ePTFE grafts to address compliance mismatch and support patency.

A blood-activated membrane seals the vessel wall while filtering emboli, and closing filter ends helps prevent clot release during removal.

Distributed pins and an elastic ring enable rapid, adaptable tissue anastomosis without manual adjustment of hand-sewn sutures.

Anastomotic clip creates a permanent aorto-caval fistula to divert arterial blood into the venous system.

Silk fibroin patches resolve synthetic polymer inflammation by supporting endothelial cell adhesion to maintain vessel patency.

An insufflable prosthesis expands to secure graft walls without clamping or suturing.

An expansible cardiovascular graft absorbs left ventricular stroke volume during systole to replicate natural aortic compliance.

A porous deflector screen expands to conform to the aortic arch wall while capturing emboli particles.

A bio-absorbable impermeable stent prevents gastrointestinal leakage and sepsis risk by providing internal support during healing.

A flow streamliner guides separate blood streams from the superior and inferior vena cava to prevent head-on collision and reduce kinetic energy loss.

Variable pattern segmentation reduces stress recurrence while allowing selective expandability under pressure.

Dispersing ceramic particles within a polymer matrix improves mechanical strength and elasticity while maintaining biocompatibility for prosthetic implants.

Offset chuck mandrel rotation enables laser cutting of bifurcated medical fabrics, eliminating uneven edges and loose fibers from manual methods.