Male Contraceptives TRIZ Cases

Pre-vulcanized synthetic polyisoprene latex permeates sulfur into particles to resolve nonhomogeneous cure properties and improve film strength.

A condom sheath incorporates a distal reservoir containing a flavor-infusing agent to alter seminal fluid characteristics upon ejaculation.

Integrating decorative films between polymeric layers eliminates adhesive delamination risks while maintaining visual appearance.

An annular adhesive retainer on a flexible sheath prevents ring displacement and reduces noise during intercourse.

Incorporating synthetic spider silk microparticles into compounded polymer latex compositions before vulcanization.

A condom pack uses a deformable tray to breach an internal barrier and dispense liquid onto the condom.

Degraded polysaccharides in the emulsion polymerization eliminate two-step coating processes while maintaining tensile strength.

Optimizing molecular weight of the styrenic block copolymer resolves the contradiction between high tensile strength and user comfort in thin films.

Strong alkaline treatment at elevated temperatures chemically proteolyzes allergens in natural rubber latex without compromising mechanical properties.

A wearable barrier made from skin-mimicking material provides a conformal interface for intimate contact.

UV-initiated cross-linking eliminates ionizing radiation and sulfur accelerators, preventing skin irritation and copper discoloration.

Thermal vapor denatures collagen in duct walls, reducing pain and recovery time compared to surgical vasectomy.

An embedded protrusion integrated condom uses a multi-station impregnation mold to fuse function adjusting components directly into the latex body.

Dual cross-linking in styrenic block copolymers improves solvent resistance while maintaining tensile strength.

A parallel lens optical structure uses a peripheral seal to protect an inorganic film on the inner surface.

Low-temperature compounding of synthetic polyisoprene latex minimizes prevulcanisation during processing.

Asymmetric external texture on the sperm reservoir section improves haptic perception to resolve orientation identification errors during unrolling.

A segmented condom design uses a thickened middle portion to anchor the device at the penis base, preventing slippage during intercourse.

Pre-vulcanized and non-prevulcanized synthetic polyisoprene particles bond via specific sulfur crosslinks to enhance tensile strength.

Hook-shaped grippers on a detachable base fix the condom ring, preventing tearing and contamination during application.

A vaginal system releases segesterone acetate and ethinyl estradiol hormones to provide continuous contraceptive protection.

Hydrophilic zwitterion coating forms a stable water film on condom surfaces, reducing friction and mechanical damage without external lubricants.

Ziegler-Natta catalyzed polyisoprene resolves the contradiction between production cost and article strength while reducing allergenicity.

Aqueous lubricant composition uses hyaluronic acid to provide long-lasting lubricity.

Flexible base material with indirect conductive traces and sensing circuitry detects conductivity changes in wearable items.

Vacuum anchor prevents dislodgment during intercourse by forming a seal between the condom exterior and vaginal tissue.

Pre-coating a mandrel with a release agent prevents weak spots during over-dipping, enabling taller textured features.

A chastity device integrates an electronic controller with a manual mechanical locking mechanism for secure operation.

Segmented packaging resolves the contradiction between protection reliability and opening difficulty by using a rigid casing and frangible seal.

Segmented radial ribs create asymmetric impedance to favor inflow and restrict outflow, resolving positioning accuracy issues across varying anatomies.

Core-shell polymeric particles with a voided core and dual-shell structure resolve processing efficiency bottlenecks while maintaining structural integrity.

Segmentation and inversion principles enable a silicone catheter with integrated absorbent material that captures small urine volumes without bulky occlusion.

An elastic condom with a teat chamber and looped projections resolves slippage risks while maintaining barrier integrity.

Intermediary strips form a pocket that guides correct application, preventing air trapping and contact contamination during use.

Hinged tip clip creates airtight seal and reservoir, preventing air bubbles and breakage during quick self-application.

Waist-mounted straps mate to prevent condom dislodgment, resolving retention reliability issues.

A condom integrates ELISA antibody bands to detect STD antigens via color change.

Gentle vas deferens constriction prevents tissue injury and maintains blood circulation while ensuring reliable sperm occlusion.

A condom sheath incorporates a distal tip reservoir containing an ingestible flavored solution that releases into the device interior.

An enclosed end features a check valve reservoir to retain fluids while a mid-span opening enables skin contact, balancing sensation with protection.

A garment assembly with a fluid-impenetrable receiver mimics penetration sensation.

Double-action strips enable even unrolling of urisheaths, resolving dexterity challenges and glove adhesion issues.

A vasectomy device clamps and coagulates the vas deferens using integrated electrosurgical jaws.

Adjusting graphene oxide pH to 8–12 enables electrostatic stabilization in polyisoprene latex, eliminating strong reducing agents and high-energy mixing.

Air pressure expands deformable walls in a urethral contraceptive to prevent semen release while maintaining insertion comfort.

A functional drug injection module integrates a cover unit and sealing section to enable simple outlet opening by external force.

A selectively permeable separating wall enriches spermatozoa by filtering X or Y chromosomes based on size differences.

A polyurethane film combines aromatic structures with anionic aliphatic polyester polyols to achieve high strength and soft texture.