Fasteners TRIZ Cases

A segmented expansion ring and cone-driven radial opening reduce wall gaps in anchor holes, improving pull-off strength and holding capacity.

Transverse pin-locked fixation helps Charcot foot bone screws resist migration while enabling guided minimally invasive placement to lower infection risk.

Transverse pin insertion locks a Charcot foot bone screw against migration while enabling smaller incisions and lower infection risk.

Combination plate openings accept locking and non-locking screws in one bone plate, improving fracture compression and fixation flexibility.

Distal tip channels and a tissue-receiving cavity clear ingrowth from the screw recess, enabling lower-force bone screw removal.

A reverse-conical threaded head and cutting flutes let this bone screw seat at extreme angles without protrusion or pilot holes.

An angled shaft and notched tip help capture and guide the coracoid process to the scapular neck while reducing neurovascular pinching.

A centralized elastomeric retention protrusion keeps a bent bone plate aligned on the holder, avoiding edge-retention failure and added supports.

An absorbable screw tip provides early fracture stability, then degrades with bone healing to prevent secondary shoulder joint penetration.

Angled extended screw threads improve pullout strength and torque resistance while reducing stripping and loosening in bone fixation.

A segmented base plate with in situ length adjustment enables secure vertebral fixation through a limited lateral surgical corridor.

Beveled plate slots with a single-sided thread projection let bone screws be placed and tightened more flexibly while preserving fixation stability.

Aligned slots, fixation screws, and a plug member lock paired pectus bars together to maintain stable chest fixation during breathing.

A rotatable handpiece-to-attachment coupling improves surgical pin orientation and ergonomics without adding major handpiece complexity.

Alternating threaded and recessed hole regions let variable-angle locking screws seat securely in a bone plate while minimizing cross-threading.

Monolithic internal beam plates and cutting guides improve bone alignment and add two-plane stiffness across fusion and fracture sites.

Specialized conical tips and chip-splitting flutes reduce drill slippage at angled bone entry while limiting heat and tissue trauma.

Mismatched plate-hole and screw-head threads enable secure variable-angle fixation while reducing surgical complexity and screw-plate motion.

Grooves limited to the lower head thread preserve continuous upper thread contact, improving variable-angle bone plate fixation and resisting loosening.

Visual alignment and depth guidance help place bone fixation guide elements accurately on the first pass, reducing reinsertions and patient trauma.

Articulating plate elements contour to complex bone shapes, then lock under fastener compression to maintain fracture alignment and healing stability.

A curved targeting guide with a sliding fulcrum helps set precise K-wire and drill-hole trajectories for hallux valgus screw fixation.

Modular removable frame sections, multiaxial joints, and telescoping rods stabilize complex fractures while protecting wounds before definitive care.

A unified bone plate set uses shared plates, tools, color-coded trays, and organized screw racks to treat multiple bones with less surgical clutter.

Metal inserts in composite plate apertures prevent debris from screw threading while preserving secure bone fixation.

A collet-based insertion guide retains and releases a bone fastener to keep deep angled pelvic fixation aligned while limiting tissue damage.

A counterbore and helical threads let bone screws lock at non-parallel angles while limiting plate deformation and maintaining a flush fit.

Differently sized screw lobes and alignment features improve torque transfer and positioning control in minimally invasive metatarsal fixation.

A nickel-titanium periosteal plate uses body-temperature shape recovery to correct long bone curvature and stimulate bone growth without osteotomy.

A collapsible base plate expands in situ across vertebral bodies, reducing lateral insertion difficulty while preserving fixation stability.

Motor-driven spools automate external fixation adjustments, moving bone segments precisely while reducing painful manual strut changes.

A deployable retention block and targeting guide align bone fragments through one incision, reducing repeated guide-wire insertion, trauma, and surgical time.

A locking device fixes the striking body to the shaft for one-handed coupling, then releases it for controlled striking impulses.

Micromotion can loosen orthopedic screws; a resilient clip flexes against the tapered fastener head to prevent backout and preserve fixation.

External rollers and exposed cable ends can destabilize bone transport and damage soft tissue; intramedullary routing and a locking reel provide controlled pulling.

Polyaxial holes accept locking and non-locking screws at varied angles, helping surgeons adapt fixation to bone quality and fracture needs.

A coupled guide body preloads and retains bone screws, aligning them with plate holes while reducing burr generation during fixation.

Multi-angle cutting surfaces help surgical drill bits resist slippage while guiding debris and limiting bone or cartilage trauma.

Small-incision rib brackets, fasteners, and a caddy-guided driver support secure thoracic fixation while limiting tissue disruption.

A counterbore accepts angled bone screw heads while helical threads secure fixation and limit lateral deformation for a flush fit.

Bone-engaging concavities, guided pins, and a backing plate stabilize tissue retraction while preserving fracture alignment during repair.

A boss, cam, and actuator align a bone plate and retain fasteners to improve sternotomy closure speed and security.

A variable-pitch shaft compresses bone fragments while the screw head locks a bone plate, combining fixation functions in one insertion.

Ball-and-socket plate elements conform to complex bone shapes, while compression screws lock the fit and an anti-rotation stop limits over-rotation.

A pivotal indentation lets the inner container tilt out while dual sterile barriers protect the implant during unpackaging.

A flexible hinge lets two guide portions open for bone-plate attachment and close to retain and align the screw during insertion.

Adjustable targeting guides address difficult K-wire trajectories in minimally invasive Chevron and Akin osteotomies by adapting alignment to the metatarsal.

An integrated jig translates and locks the metatarsal fragment while guiding K-wire insertion, reducing instrument changes and micro-injuries.

Integrated suture eyelets let a TPLO plate secure dissected soft tissue while improving rotational stability during canine osteotomy procedures.

Fixed-angle compression plates restrict screw placement; this slot lets screws enter at variable angles while driving plate traversal, locking, and bone compression.

Dual-function plate openings accept locking or compression fasteners, balancing bone stability with dynamic compression.

A locking mechanism makes the cannulated shaft removable and rotatable, improving grip, torque, and maneuverability across surgical sites.

Curved screw head surfaces enable variable angle locking in standard plate bores, shifting manufacturing complexity from the plate to the screw.