Incision Instruments TRIZ Cases

A cap displacement mechanism moves protective caps out of the active lancet travel path within a multi-lancet cartridge.

A cutting tool with angled blades enables precise horizontal tendon incision through a small surgical access point.

Dynamic curvature adjustment of a flexible shaft orients the cutting edge flush against tissue, minimizing damage to surrounding healthy structures.

Segmented caddy with tailored slots constrains cutting broaches to eliminate rotation risks while enabling seamless stem assembly.

Anchoring and channel creation enable precise tissue core extraction for accurate diagnosis.

Merged suction channel and flexible blade reduce instrument complexity and minimize occlusion during tonsillectomy.

A cannulation device uses a retractable wedge and fixed blade to pierce vessels through small access sites.

Disposable scab separation device with integrated cover prevents bacterial contamination during vascular access.

Segmenting dissection through the orbital septum creates a clear surgical field that reduces tissue damage and bleeding during enucleation.

Curved guiding tracks direct the blade member to reduce skin pain while maintaining reliable blood sampling reliability.

Segmented balloons independently compress the radial and ulnar arteries, preventing radial artery occlusion during hemostasis.

A scalpel locking slide secures the blade via spring pressure to enable safe handling.

A surgical stapling head uses independent forward and backward helix tracks to guide an annular cutter along a metal cylinder member.

A buttonhole tool uses a scoop bevel to lift scab tissue from patient skin.

Inward projections in the knife housing channel prevent tissue residue from causing sticking during extended inactivity.

A minimally invasive surgical system uses a dynamic guide wire path to enable precise bone fixation implantation.

A pediatric surgical device combines a movable blade and tissue spreading jaws in one compact handle assembly for precise dissection.

Segmented ultrasonic osteotome heads bend laterally to expand operating space in transforaminal spinal surgery while minimizing soft tissue damage.

A surgical stripping knife uses a guide face to maintain cutting edge sharpness during tissue separation.

Segmenting continuous resection into discrete pixels via the PAD system prevents visible scarring while enabling repeated donor site harvesting.

Elastically flexible parallel members flank the blade slot, requiring sufficient force for engagement while a bridge member blocks access to reduce injury risk.

A multi-functional extraction tool integrates clamping, cutting, and gripping mechanisms to standardize the retrieval of subdermal implants.

Segmenting the cannula into removable components resolves cleaning difficulties in narrow clearances, lowering instrument costs through part reuse.

An ultrasonic blade welds buttresses to secure tissue between surgical instrument jaws.

Cold pressing austenitic stainless steel achieves 550 Hv hardness without quenching cracks.

Fixed imaging devices prevent shaft obstruction of the treated area, ensuring reliable visual control during procedures.

Segmented protrusions and nested lysing elements enable precise tissue separation while real-time sensor feedback prevents excess energy delivery.

A five-layer laminar surgical blade uses pure copper thermal transfer layers bonded to a martensitic stainless steel core for efficient heat delivery.

Asymmetric blade surfaces create controlled rotation moments that stabilize the S-shaped movement path and ensure linear incision lines.

A scalpet device with guide plates incises skin pixels to harvest grafts.

Powered surgical instrument uses tissue compression sensors to monitor parameters over time for adaptive control.

An expandable torque wrench rotor accommodates irregular scalpel head geometries, resolving compatibility limits of straight-bar designs.

A scalpel blade carrier uses a slidable tubular guard to cover the blade when not in use, ensuring safe handling during storage and transport.

Radially expanding trocar blades enlarge tissue openings automatically, reducing the force required to advance instruments through narrow sheaths.

A monoblock gripping handle integrates a blocking lever and elastic pivot to secure removable working bits.

Bilateral laminar anchors connect via a rod-like element to immobilize target motion segments without violating cortical bone or damaging periosteum.

A rotary pressing mechanism cuts precise holes in artificial anus protection plates using interchangeable circular blades.

Parallel crush surfaces in the end effector compress and sever liver vessels, reducing procedural complexity.

Segmented housing wall openings allow a cleaning jet to reach the stored surgical tool inside the grip.

Segmented dilators with tapered tips split supraspinous ligaments, reducing tissue trauma during minimally invasive spinal access.

A scalpel holder uses a wedge-shaped slider to lift and eject blades for safe one-handed operation.

A safety scalpel features a retractable protective guard secured by a manual locking catch and guide formations.

A dermatome blade holder uses a curved guiding element to define an oscillating path for the cutting blade.

A fixed depth skin flap elevator device separates tissue at a predetermined cutting depth using spaced upper and lower arms.

An over-center spring biases a scalpel safety shield into blade-covering or out-of-the-way positions, compensating for manufacturing tolerance errors.

Symmetrical surgical instrument handles pivot between open and closed positions to resolve grip comfort versus reversible use trade-offs.

Offset blade shifts laterally to extend incision length beyond the cannula diameter while maintaining precise placement.

A retrieval loop cuts through ingrowth tissue to expose the retrieval feature of a chronically implanted leadless cardiac pacemaker.

Converging jets create a cutting zone and lamellar fan, resolving the trade-off between precision and tissue damage.