Fallopian Occluders TRIZ Cases

Gentle uterine tube constriction paired with timed wall stimulation controls sperm flow while preserving blood circulation and reducing injury risk.

A docked membrane switches between blocking and reopening the vas deferens, enabling reversible male contraception with less invasive occlusion.

A wireless vas deferens implant switches sperm flow on or off to deliver reliable, reversible male contraception without hormones.

A curved pivot nested along the tube wall cuts lateral extension, easing assembly while preserving bistable valve actuation in small vessels.

Microchannel filters and nanospikes in a seminal duct tube physically destroy sperm, enabling reversible male contraception with minimal side effects.

A flexible porous silicon disc folds into a laparoscopy tube, anchors with micro-hooks, and releases medicament over months to years.

Hydro-distension and spring-loaded probes confirm placement, reducing discomfort during occlusion delivery and patency restoration.

This case uses sheath and probe confirmation to place or remove occlusive materials while reducing perforation risk and discomfort.

An expandable frame and anti-ingrowth barrier seal the fallopian tube while enabling catheter-based retrieval and fertility restoration.

A sheath, probe, and stylet help place occlusive hydrogel accurately while confirming occlusion and lumen patency during removal.

A bipolar coagulating device compresses and seals the vas deferens to minimize tissue trauma during sterilization.

An introducer sheath acts as an intermediary between the delivery system and distention valve, reducing friction while sealing against fluid backflow.

Phase transition from dry to hydrated state allows easy insertion and reliable occlusion, resolving reversibility constraints.

A fluid delivery device irrigates the vas deferens via a catheter tip secured by an external clamp, reducing surgical complexity compared to epididymal bypass.

A bipolar vasectomy device uses radio frequency energy to coagulate and divide the vas deferens in a single step.

A mandrel with distinct winding regions produces multiple embolic coil types simultaneously.

Radially expandable plugs seal fallopian tubes to prevent fluid leakage, maintaining uterine distension and reducing systemic absorption risks.

Laparoscopic devices constrict or stimulate uterine tube walls to control egg flow, replacing chemical fertility drugs with adjustable mechanical mechanisms.

Segmented struts with local quality features anchor the device while thin films block egg passage without increasing volume.

Single integrated device combines gripping, compression, and stitching assistance to reduce instrument complexity and procedure time.

Segmented barriers prevent embryo migration to reduce ectopic pregnancy risk while maintaining contraceptive reliability via non-invasive placement.

Ultrasound-guided radiofrequency probes deliver targeted energy to the vas deferens for precise tissue coagulation.

RF energy ablates fallopian tube tissue to trigger natural adhesion formation, eliminating foreign body risks associated with coil implants.

A dissolvable on-command ear tube uses a polymer coating that softens and degrades upon exposure to specific chemical triggers.

A restriction device retains an egg in the oviduct to enable precise release timing.

Segmented expulsion via a reciprocating pusher achieves complete fallopian tube occlusion despite scalloped anatomy.

A bipolar electrosurgical device divides varicose veins while simultaneously sealing the cut ends through coagulation.

A resilient intrauterine device spreads outwardly to seat orifice plugs within fallopian tubes.

Botulinum toxin implant paralyzes peristaltic motion, allowing cyanoacrylate occlusion to bond reliably without displacement.

A segmented elastic occlusion device absorbs peristaltic wave forces, maintaining position without tissue damage for reversible contraception.

Segmented implants fold tubal walls for immediate blockage, eliminating follow-up assessments required by passive healing methods.

Shape memory alloy tension wires heat to contract and pivot the valve member, resolving the trade-off between compact implant volume and non-invasive operation.

A bipolar coagulating device uses a rigidly resilient polymeric handpiece to deliver thermal RF energy for sealing thicker tissue sections.

An electromechanical biomaterial delivery device controls plunger velocity and force to convey precise micro-volumes of hydrogel components.

RF energy ablates fallopian tube tissue to induce adhesion, avoiding long-term foreign body risks.

Rotating distal tip ablates biomaterial implants within the vas deferens to clear occlusions without mechanical trauma.

Resilient tissue contact members apply lateral force against the uterine wall to maintain device stability and prevent migration.

Segmented Nitinol fasteners expand to occlude blood flow and prevent leakage at the transfixion aperture.