Surgical Manipulators TRIZ Cases

A control circuit measures displacement over time intervals to adjust motor velocity for surgical stapling instruments.

Segmented linkage members enable detachable coupling of robotic surgical instruments, resolving attachment complexity.

Segmenting interfaces by purlicue and finger engagement resolves the trade-off between precise articulation control and grasper function intuitiveness.

Decoupling the clamp arm from shaft insertion via a mid-shaft mechanism resolves interference between independent surgical operations.

A cable-driven actuation system articulates a robotic surgical end effector and clamps tissue with precision.

A modular microsurgical robot uses a virtual wrist to provide precise motion scaling and tremor filtration for surgeons.

Segmenting computation into a central coordinator reduces heat generation in arm controllers while maintaining precise positioning of the surgical instrument.

A cable brake assembly binds drive cables to prevent axial translation, managing tensile loads during safe disconnection of the drive housing.

Segmented monitors propagate faults via lookup tables to maintain stable states during surgical procedures.

Master tool switches modes to control instrument position or force, resolving the trade-off between multi-instrument versatility and system complexity.

A rotary input lever gimbal transmits bidirectional forces to orient a surgical tool using shared cables and capstans.

A surgical tool rotary drive switches between high-speed grasping and high-torque cutting using a spring-loaded transition nut on a ramped cam surface.

A medical manipulator rotation mechanism guides power-transmitting wires via a folding part to prevent contact and rubbing that reduces durability.

A rail tension extraction device uses magnetic attraction and a locking assembly to secure metallic targets inside the vascular system.

Modular surgical instrument with independently actuated working members extends lifespan by enabling easy tip replacement.

Pressurized fluid moves a piston to drive a lead screw, resolving the contradiction between motion control precision and actuation mechanism complexity.

Friction-based cable routing eliminates retention elements, reducing assembly complexity while maintaining tension in miniaturized instruments.

Variable cross-sectional tendon geometry transmits movement through a rotating body, eliminating idler pulleys and reducing mechanical complexity.

A rotatable wrist assembly transmits linear wire movement to rotate a gripper capstan via friction and positive locking mechanisms.

Segmented tubular shafts with nested control rods enable precise articulation of the working end, reducing scarring from large incisions.

A medical manipulator uses a pulley system to amplify pulling force, reducing operator effort during tissue joining.

Segmented drive and instrument tabs enable secure mechanical power transmission between a surgical instrument and its robotic drive unit.

Meshing shaft sections replace cable joints to resolve imprecise positioning in robotic surgery.

A stiffness-reinforced surgical overtube uses main and auxiliary tendons to adjust rigidity for precise lesion removal.

A control unit manages operation offsets between master and slave units to maintain designated positions during magnification changes.

Guide pulleys constrain the cutting path to prevent soft tissue damage during bone separation.

Friction-based plastic capstans eliminate welding steps to maintain cable tension throughout the device lifespan.

An integrated operating device merges manual robotic arm control with patient data display on a single screen.

A robotic surgical instrument uses distal force sensors to detect applied loads directly at the effector tip.

Elongated control body with deformable portions and force sensors detects finger grip pressure for precise teleoperation signals.

Laterally offset roller supports constrain drive cables at articulation joints, preventing tip dive and ensuring stable jaw movement during surgical procedures.

A docking system secures the master manipulator handle to immobilize the slave instrument during surgical procedures.

Segmenting the inner rotation part and outer bending part with distinct driving mechanisms eliminates hysteresis from wire-driven systems.

Inner links constrain lateral movement in the wrist assembly, preventing buckling during extreme yaw and pitch angles.

An intermediary sleeve absorbs torque and shock from orthopedic tools, protecting the robot from damage while maintaining precise registration.

Decoupled mobile electromagnetic coils reposition to expand working area while reducing heat generation in medical robot actuation.

Integrating concentric tube and notched mechanisms reduces instrument diameter while maintaining complete drive functions for skull base tumor resection.

Segmented occlusion allows shaft rotation without losing pneumoperitoneum, while an integrated cutting assembly detaches the uterus and cervix securely.

A rotatable linear actuation mechanism uses a translatable rack gear assembly to adjust articulation band tension.

Direct tendon contact surfaces on a robotic microsurgical jointed subassembly eliminate guiding channel friction, enabling precise miniaturization.

Electric motors replace mechanical linkages to reduce instability and enable seamless integration with robotic surgical systems.

Coordinated screen magnification and operation scale control units resolve the contradiction between visual adaptability and independent operational precision.

Hybrid interleaved manipulators resolve position regulation trade-offs by combining flexible segments with rigid actuators and tendon control.

A medical input unit maintains uninterrupted operator control during endless rotations by switching between handling modes when torque thresholds are reached.

Axial actuating element prevents dirt accumulation at the treatment site by eliminating longitudinal handle extensions.

Tapered capstan mechanism transmits rotational force through an angled cable path to rotate elongate surgical tubes.

Integrating drive inputs and accumulators into a monolithic structure reduces part count and manufacturing complexity in robotic surgical tools.

A toothed body converts linear pull cable tension into rotational torque for precise angular bending of an endoscopic instrument head.

Guide portions constrain wire movement paths to prevent interference between pitch and yaw motions, ensuring accurate end tool actuation.