Osteosynthesis Devices TRIZ Cases

An inflatable bone tamp employs a stiffening stylet to maintain shaft rigidity, enabling effective treatment of calcaneus fractures on angled surfaces.

A surgical tool handle uses a biasing plunger to stabilize the chisel bit within the coupler during orthopedic procedures.

A handheld surgical instrument uses a spring-loaded impacting mechanism to drive a tapered tip into bone for precise hole creation.

A combination surgical device merges drilling and reaming functions into a single instrument for shoulder arthroplasty.

A rod-like dispensing element uses a cam-driven switching system to toggle between coupled and decoupled thread positions for precise axial movement.

A dual-spring orthopedic surgical instrument uses a launch cog assembly to store and release energy for precise forward and reverse impacts.

Segmented swinging members maintain osteotomy cuts open during implant placement, reducing contact pressure on bone surfaces.

Bending cage restricts rotational movement of bone fixation plates, eliminating slippage and ensuring accurate horizontal plane contouring.

A ball-and-socket joint and locking collet stabilize the cannula during filler delivery, eliminating the need for an assistant to maintain positioning accuracy.

A simplified inflatable bone tamp uses a biocompatible hypotube and balloon to compress fractured bone tissue.

Pivoting pliers with screw-engaging slots and plate recesses reduce surgeon fatigue during manual fracture lengthening.

A guiding device uses parallel channels to position a second guide wire relative to a first wire.

Segmented spiral windings convert pulling force into stable vertical lifting, preventing damage to surrounding bones during closed fracture reduction.

Longitudinal handle design eliminates upward obstruction from C-clamps, enabling precise bone fragment fixation while maintaining clear surgical visibility.

A driver assembly uses a threaded wire locking mechanism to rotatably couple with the tool and secure the guidewire during bone screw insertion.

A surgical clamp uses a ratchet mechanism to pivot working members for bone distraction or compression.

Minimal-part single-use instrument maintains cable tension stability during sequential bone fixation.

A pneumatic bone pin gun drives fixation pins into fractured bones using a gas-powered piston mechanism.

Grooved elevator blade provides tactile feedback and controlled force application to resolve the trade-off between device simplicity and surgical precision.

Extraction of resilient biasing replaces complex springs with a pin-coupled pivot to prevent tool dislodgment during intramedullary nail alignment.

A microfracture pick system uses a punch extension to apply off-axis impact force to the strike tip.

A spinal retractor assembly integrates a keyed distractor to maintain intervertebral spacing during surgery.

Real-time acoustic feedback distinguishes cement from bone during drilling, preventing unnecessary bone damage in revision surgeries.

Bent projections fix blades in a plastic head, eliminating cleaning time and preserving cutting accuracy.

Segmentation and dynamics resolve slippage by securing the nail aperture against high extraction forces.

A compound rod bender uses a dynamic hinge mechanism to distribute bending force across multiple pivot points for precise spinal rod contouring.

Self-retaining retractors lock into bone to eliminate manual handling, reducing surgeon radiation exposure during orthopedic imaging.

A bone clamp features a ball-shaped drill guide retained in the jaw cavity to enable compound angle adjustments for precise surgical drilling.

An intermediary flow controller stabilizes balloon expansion to prevent uneven inflation and rupture during spinal fracture treatment.

A flexible reamer creates a curvilinear void in the vertebral body to enable symmetrical cement distribution from a single access point.

Slidable distal augment switches between oblong and circular openings to resolve versatility versus complexity trade-offs in bone cement delivery.

A quick connect mechanism joins an orthopedic tool holder to surgical instruments using multiple engaging surfaces and a resilient sleeve.

An expandable tip elevates subchondral bone to restore femoral head geometry, preventing permanent deformity from avascular necrosis.

A cannulated modular glenoid reamer toggles between perpendicular and parallel positions relative to a guide pin for precise surgical alignment.

A low-profile acetabular reamer uses a relief surface and central support hub to maintain rigidity during minimally invasive bone preparation.

A hole-forming tool creates bone tunnels and attaches cables for fracture fixation.

A motor drives a linear motion converter on an independent axis to accelerate a thrown mass against an anvil for precise impact delivery.

A segmented bone cement extractor uses a slide hammer to break and lift cement sections.

A bending instrument uses pivotable branches to drive a linear punch for precise surgical element shaping.

An expandable bone anchor secures within the vertebral body to enable pressurized cement delivery through its internal lumen.

A medical impactor tool switches between single and multiple impact modes based on actuator depression time.

A bending apparatus uses a circumferentially movable post to contour surgical devices.

A plunger with a central passageway guides a stylet to expel trapped biomaterial, eliminating wastage in cannulus devices.

Segmenting the stamping instrument into a flexible navigation shaft and rigid plunger resolves handling contradictions under fluoroscopy.

A multiple fulcrum surgical bender multiplies bending force through interlocked lever arms to shape spinal implants.

A damper manages internal pressure spikes while a flow control device regulates inflation material, ensuring uniform vertebral expansion.

Segmented pivot arms provide mechanical advantage to cut bone anchors in limited surgical spaces without increasing insertion profile.

Segmented pressure release slots rotate independently of the plunger to relieve internal pressure without altering dispensing position.

A guide wire control device uses a spring-loaded pivoting lever to adjust clamping force on medical instruments.

A curvilinear drill device creates a targeted cavity within the vertebral body using a flexible shaft and expandable balloon element.