Surgical Adhesives TRIZ Cases

A two-section hydrogel expands in physiological fluid and crosslinks in situ to seal vascular punctures, reducing pressure-based immobilization.

A dual check valve and trigger-driven pusher support one-handed hemostatic delivery while reducing clogging, setup time, and material waste.

A water-based viscoelastic composition pushes opaque blood aside without mixing, preserving endoscope visibility for electrocoagulation.

To address heavy bleeding and scarring, twisted filaments combine nanoparticle-loaded polymer and polysaccharide fibers for hemostatic dressings.

See how a conductive bioadhesive interface replaces sutures and inserted electrodes for reliable pacing with less tissue trauma.

Interconnected pores absorb interfacial blood while crosslinked polymer networks support adhesion and rapid clotting at deep, non-compressible bleeding sites.

Surface-eroding PMAA cyclopolymers replace PMMA bone cement to preserve mechanical strength while degrading into water-soluble, non-toxic acid products.

A hygroscopic network material forms an adherent matrix for gradual analgesic release and wound healing in extraction sockets.

Controlled viscosity and temperature form cross-linked gelatin/chitosan sponges without wetting agents, enabling immediate blood absorption without prehydration.

Branched polyamines ionically crosslink anionic polysaccharides to stabilize pH and support sustained release in therapeutic hydrogels.

Combining radiopaque powder with adhesive-bound granules improves fluoroscopy visibility while preserving filler fluidity and mechanical integrity.

Replacing costly trilysine agents with radiopaque polyamino crosslinkers helps form hydrogels with improved radiopacity and hydrolysis resistance.

Pre-compressed calcium phosphate with phosphoserine or phosphocreatine enables accurate spinal placement while reducing powder handling and migration risks.

A room-temperature polymer-surfactant process produces controlled-size biodegradable beads for self-expanding embolization and reduced removal needs.

Preloaded drug reservoirs are encapsulated in liquid hydrogel before gentle cross-linking to prevent migration and support high-concentration delivery.

Combining tris(hydroxymethyl)aminomethane with phosphate buffer helps keep ocular viscoelastic pH within specification during cool storage.

Poloxamer and oxidized polysaccharide form imine-crosslinked hydrogels that target toxic degradation, slow curing, weak strength, and poor tissue adhesion.

An aldehyde-terminated multi-arm PEG reacts with a polyamino compound for fast in-situ gelation and improved aqueous stability.

Rapidly swelling absorbent material in a cellulose-plasticizer matrix forms a non-adhesive stoma seal while limiting leakage and skin exposure.

A hygroscopic network-forming matrix adheres to tooth-extraction wounds, resists erosion, and sustains analgesic or anesthetic delivery.

Two fiber populations with different surface bonding groups crosslink under manipulation or stimulus, strengthening adhesion and stabilizing layered structures.

Fibrin cross-linking and gelatin swelling create a tissue-adhering lung tract seal that sets rapidly while limiting foreign body reaction.

Polydopamine-anchored hydrogel plugs combine tissue adhesion, crosslinking, and drug release to support fistula healing.

A tuned viscoelastic composition pushes opaque blood and canal contents aside without diffusion, preserving the endoscopic view for hemostasis.

A freeze-dried hydrogel expands in physiological fluid and cross-links in situ to seal vascular punctures faster and reduce prolonged pressure.

Phosphorylated serine and polydopamine help calcium phosphate ceramic bond bone without metallic fixation hardware.

Injectable photocurable biomaterial fills the irregular left atrial appendage and crosslinks in situ, reducing perforation risk.

pH- and temperature-responsive block copolymers replace toxic DMSO with aqueous in-vivo gelation for embolization and drug delivery.

Radiation sterilization can reduce adhesive wettability; acrylic polymers with rosin or terpene stabilizers support stable medical bonding.

Cold plasma creates a linking layer for polymer functionalization, improving biocompatibility and device tolerance beneath the skin.

This case uses PEG end-group chemistry and reactive-group ratios to tune degradation from minutes to months while maintaining stability.

A chitosan-based ion-conducting matrix supports anisotropic signal transfer between electronics and biological tissue.

Sebacic acid, PEG, glycerol, and L-DOPA form biodegradable adhesives for closure without permanent staples or stents.

This combines multiarm PEG, polyarm copolyester, and oligopeptide crosslinking to limit swelling while supporting drug loading and release.

Photosynthetic scaffolds continuously produce oxygen, helping tissue constructs avoid hypoxia before vascularization develops.

This case addresses rapid ester hydrolysis with reactive saccharide-based polymers for stable, controlled-degradation hydrogels.

A rapidly gelling ECM hydrogel balances infusion viscosity and cushion stiffness for minimally invasive GI dissection.

Stimuli-responsive polymers enable reversible body-lumen occlusion for contraception.

This case uses a flexible adhesion promotion sheet and pulling unit to align joined tissues and reduce leakage risk after surgery.

High-adhesion silicone adhesive supports gentle skin removal with less pain.