Surgical Scissors TRIZ Cases

Orthogonal convex sliding surfaces and a transverse pulley raise closing torque while lowering cable stress in miniaturized robotic surgical tools.

A tilting blade support uses a pin-bore discontinuity to redirect cutting force, shorten MIS blades, and reduce cable count and manufacturing cost.

Laser energy heats and coagulates tissue at the cutting tip, lowering mechanical force and speeding minimally invasive surgical cutting.

Two independent handle actuators enable sequential rotation, tilt, and jaw actuation without grip changes, improving one-handed surgical control.

Snap-fit axle-mounted surgical scissor blades enable sterile replacement of worn cutting parts, extending end effector life and reducing waste.

A tilting blade support with a bore discontinuity adds compliant yaw motion, cutting cable count while enabling smaller MIS wrist assemblies.

Rotating actuation pulleys to an over-centered position exposes blade bosses for fast blade replacement and longer end effector life.

A toggle lever and spring maintain gripping force at small opening angles while protecting the surgical tool head from overload.

Rotating the actuation pulleys to an over-centered position exposes blade bosses for fast blade replacement and longer end effector life.

Acoustic energy disrupts subcutaneous septa to smooth cellulite while reducing bleeding, bruising, and recovery time.

A wedge-fit jaw coupling replaces screws to secure surgical jaws while enabling fast, tool-free exchange and lower instrument complexity.

A low-profile tube layout keeps the instrument within 4 mm above the top side, improving visibility and maneuverability in tight surgical access paths.

A detachable PEEK proximal hub and metal distal hub enable fast tip sterilization, quick exchange, and electrical insulation during surgery.

A flexible shaft with a distal articulating section and cable control helps a monopolar knife navigate tortuous anatomy with precise handle actuation.

A soft-tip, filament-guided distal end improves bile duct cannulation angle control and helps remove obstructions with less tissue damage.

Separate instruments can slow minimally invasive procedures; a hollow central lumen combines aspiration and material delivery in one robotic tool.

Over-centered actuation pulleys expose the blade bosses for quick removal, letting dull surgical scissor blades be replaced while the handle assembly is reused.

A scissor mechanism and monopolar electrode share one endoscopic instrument, enabling tissue cutting and coagulation without frequent replacement.

Endoscopic ESD can lack effective tissue traction; separate tensioning and pivotable cutting tools lift lesions for clearer, precise resection.

Pivoting end effectors close for tortuous-path navigation, then open for tissue grasping and cutting with less trauma.

Rotating clipping members extend and sever mucoadhesive strips through an endoscope, reducing buckling during GI bleeding treatment.

A protruding extension and asymmetric grip surfaces help maintain control and precision during ultrasonic treatment at rotated orientations.

Belleville springs and constrained blade motion maintain shear angle and slice-push ratio in compact robotic surgical scissors.

A pin-and-slot driver replaces four tendon paths, enabling compact bidirectional jaw actuation with lower component complexity.

Segmented flexible shafts and netted jaws capture blood clots while reducing embolization and vessel-wall damage during navigation.

This case uses a slotted windlass shaft and twist-lock implements to add cutting, writing, and reopening functions.

This case uses coaxial couplings across instrument, sterile isolation, and motor seats for stable power and accurate robot motion.

A rotary shaft mechanism integrates robotic-tool irrigation and suction for clearer surgery.

A thread-like knife driven between opposing jaws cuts tissue without requiring complete closure.

A corrugated shaft navigates tortuous vessels to capture blood clots, preventing distal embolization during retrieval.

Segmented flexible medical scissors bypass vital blood vessels and nerves through natural tissue gaps using dynamic angle adjustments.

A compact surgical tool uses solid surface cable guide channels to maintain constant tension and reduce friction during articulation.

A medical cutting instrument with a U-shaped rigid jaw and pivotable movable jaw enables precise lateral pushing onto tissue.

A bipolar scissor tip uses a canted coil spring electrical contact to maintain constant power transfer between rotating shaft assemblies.

Integrated forceps combine gripping, cutting, and electromagnetic coagulation to resolve hemostatic power loss in liquid environments.

A hand-held gripping device with a corrugated central portion captures blood clots via movable jaws or nets.

Cam actuated surgical scissors use a clamp mechanism to hold blade members in compression for stable tissue grip.

A microsurgical instrument uses a rotating cannula and reciprocating wire member to enable single-handed manipulation during procedures.

Resilient arms on a percutaneous loader enable quick in vivo end effector exchanges, eliminating large incisions and trocar trauma.

Electrode plates and a knife blade integrate into jaw members to perform electrosurgical treatment and precise cutting without changing instruments.

A deployable tooltip camera uses a shape memory alloy tube to rotate and translate for wide-angle visualization.

Segmented disposable applicators enable tool-free attachment and simplified sterilization of fluid delivery systems.

Superelastic alloy blades deform elastically to follow curved paths, eliminating manual shear adjustment and preventing permanent blade deformation.

Guide member aligns scissors at 60 degrees to reduce third degree tear risk during mediolateral incisions.

A robotic grasper with a docking mechanism enables rapid surgical tool exchange without removing the device from the patient.

A flexible toothed belt retracts into a hollow jaw space to reduce volume and eliminate bulky cable pull mechanisms in narrow body cavities.

Segmented cables and merged pulleys resolve the trade-off between device complexity and jaw control precision in robotic surgical systems.

Rotating tips transition a single surgical tool between forceps and scissors modes, eliminating frequent instrument exchanges during procedures.

A cutting grasper with a flexible shaft and hinge mechanism lacerates mitral valve leaflets.

Segmented scissor blades with alternating wedge angles prevent tissue slipping during microinvasive procedures by providing clamping and cutting zones.