Surgical Staples TRIZ Cases

A circular stapling cartridge assembly uses an elastomeric retaining ring to secure a buttress member over the tissue engaging surface.

Segmented anvil flanges with varying thickness guide the firing member to maintain consistent lateral alignment across tissues of alternating thickness.

A lockout member prevents premature firing while a reduced profile firing member delivers multiple staple rows.

Rotating a serrated circular blade reduces operator force during surgical stapling.

Segmented guide members and flexible knife bars reduce shear forces on blades during articulation, extending blade life in surgical instruments.

A surgical stapler anvil uses a cam follower and rotary cam to adjust the gap distance, preventing tissue leakage or damage during stapling.

Extraluminal circular stapler enables eversion anastomosis without intraluminal stoma creation or secondary incisions.

A single-profile buttress with offset attachment features reinforces staple lines while reducing device complexity.

A dual threaded rod articulation assembly drives opposite nut movement to position a surgical end effector at 90 degrees for improved tissue access.

Angled jaw closure applicator aligns with the left atrial appendage base to eliminate gaps and reduce thrombus formation risks.

Projections and slots on movable jaw members engage buttress materials via elastic tension, solving complex attachment issues in fragile tissue sealing.

Pulleys transmit intuitive rotation from the handle to the end tool, resolving confusion between control input and device movement.

Polymeric sutures bond to overmolded zones on staple cartridge and anvil plates to secure buttress material, preventing premature release during assembly.

A surgical stapling instrument firing member return mechanism advances and retracts the cutting member using a reversing drive.

A surgical stapler handle assembly uses a ball screw to articulate the jaw assembly relative to an elongate shaft.

Compressible anvil features stabilize thin tissue to prevent tearing and ensure effective cutting.

Circumferential nozzles deliver uniform sealant coverage to prevent leaks while eliminating manual application errors and clogging issues.

A ventilation opening in a connection shaft enables gradual gas release from a cartridge, preventing sudden noise and user discomfort during removal.

Compressible staple cartridge accommodates varying tissue thicknesses through adjustable anvil insertion depth.

A stepped hemostasis member applies distinct compression levels to limit blood flow at the cut-line while preserving perfusion in surrounding tissue.

Segmented transmission paths enable manual resetting of electric staplers after unexpected shutdowns without increasing device complexity.

Welds joining buttress to cartridge surface release via firing force, eliminating secondary materials and reducing device complexity.

A controller delays staple firing to ensure uniform tissue compression and fluid drainage before deployment.

A surgical stapling apparatus severs anchor structures via knife blades to detach the buttress, resolving limited access in endoscopic procedures.

A suture release assembly secures a surgical buttress to cartridge and anvil surfaces, preventing shifting during tissue manipulation.

Flexible drive beam and adapter cam adjust stroke length during articulation, eliminating dead space in surgical stapling devices.

A surgical stapling apparatus incorporates a detachable buttress material secured to the anvil assembly for tissue reinforcement.

A surgical end effector uses a retaining filament to secure adjunct material, reducing tissue trauma and leakage through staple holes.

Annular fluid blockers protect electrical connections from moisture damage in surgical staplers.

Segmenting reusable handles from disposable end effectors resolves sterility conflicts while maintaining precise motor control.

Segmented reusable handle and disposable cartridge assemblies enable versatile clip application without increasing device complexity.

Multi-directional polymeric orientation resolves unidirectional weakness by resisting tear propagation perpendicular to load axes in surgical buttresses.

A folding cap mechanism collapses extension arms to navigate small orifices during surgical procedures.

Resilient latches engage detent features to prevent accidental decoupling of cartridge and anvil halves during tissue clamping.

Reusable handle drives interchangeable disposable loading units to reduce procedure time while maintaining operational reliability.

A control circuit monitors drive assembly parameters to determine stored kinetic energy and adjust motor settings during actuation.

Pulling the blade from the distal end stabilizes movement along a curved cartridge, preventing unsteady push-out direction during tissue dissection.

Outer laminates on a metallic core reduce friction to lower firing forces, enabling easier articulation of endoscopic staplers.

A handle assembly with a clamp release mechanism uses a pawl to lock the drive element.

Overlapping staple crowns enable precise vessel ligation in complex liver resections, resolving articulation constraints.

Asymmetric compatibility lugs block incompatible staple cartridges, preventing improper tissue sealing during surgery.

A drive screw converts rotation into linear beam motion to actuate surgical jaws.

Asymmetric double beveled annular knife geometry optimizes blade strength and cutting performance while reducing manufacturing complexity.

A continuous stapling instrument uses a winding drive mechanism to manage a flexible staple belt for uninterrupted tissue joining.

Variable depth staple forming pockets in the anvil assembly adapt to tissue thickness variations, ensuring consistent staple formation across the staple line.

A trocar coupling assembly uses a release button and retention pin to transition between locked and unlocked configurations for secure insertion.

Integrated stapler and tiltable anvil assembly pass through one trocar, eliminating separate placement risks.

An adjustment mechanism modifies the distance between a drive assembly and an anvil to control formed staple height in surgical staplers.