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.