Surgical Staples TRIZ Cases

Different surgical end effectors need different speeds and torque; a dual-output gearbox separates drive paths from one motor.

Flexible pushrods limit stapler articulation to 45–60 degrees, while cable drives enable wider positioning for angled tissue.

A rotatable cam sequentially advances segmented pushers to eject staples while a flexible shaft reaches difficult surgical sites.

Rail-guided bearings support a surgical beam tangentially, preventing buckling during longitudinal actuation in smaller endoscopic instruments.

A biodegradable clip blocks the trocar opening after laparoscopy, reducing herniation risk without requiring full fascial closure.

A loading tool transfers anvil buttresses to a surgical stapler, simplifying operating-room attachment and reducing procedural complexity.

Limit members disconnect both motor paths during failure, enabling safe withdrawal and manual completion of anastomosis.

Elongated-member control pivots the end effector between parallel and angled positions for tortuous-path access and less patient trauma.

See how a movable anvil and C-shaped clamping member create a compact end effector for unilateral endoscopic tissue stapling.

A motor, lead screw, and knob connector drive the stapler’s actuation knob axially, reducing hand fatigue and improving staple formation uniformity.

Overlapping staple legs and a modified anvil increase staple density to strengthen seals and limit luminal leakage.

Laterally varying anvil pockets form staples with distinct orientations to balance tight tissue compression and leak path resistance.

A movable block and resilient biasing member keep the buttress taut, limiting deformation and supporting flush staple formation.

A mode-selection switch varies actuation-shaft advancement so surgical staplers can adapt staple deployment to tissue type and user fatigue.

A rotatable cam and opposing articulation shafts let the surgical loading unit reach tissue at varied angles through a constrained access path.

Motor-current limits and encoder position tracking help a surgical stapler distinguish tissue resistance from lockout and end-of-stroke obstacles.

Shaft recognition blocks firing and articulation when the reload is not securely coupled.

A firing button, push rod, and detection module link switching with knob locking to stabilize anastomat cutting.

A platform and closure surfaces position a buttress against stapler jaws, helping reduce staple pull-through and tissue tearing.

An elastic lockout member releases when the actuation sled advances, preventing tissue cutting without stapling.

A reusable surgical module uses nested planetary gear assemblies to deliver high torque at low speed and high speed at low torque.

A staged surgical stapler shifts pressure from superficial tissue to submucosal layers, improving anastomosis sealing and healing.

A stepped anvil pin rotates under clamp engagement, reducing frictional contact and the force needed to close surgical stapler halves.

Flexible bands, pusher assemblies, and trocar mechanisms transfer motion for selective end-effector attachment, sterilization, or disposal.

A retention cap fixes the cartridge tray to the body, supporting consistent firing and staple formation.

This case shows how added cartridge contact surfaces preserve buttress adhesion despite raised pocket extenders.

Flexible, adhesive buttress assemblies distribute staple loads, support varied tissue thicknesses, and help limit bleeding.

Localized bumps limit cartridge rotation and tissue compression, supporting uniform staple-line coverage and sealing.

A handle, shaft, cable, springs, and levers simplify coronary graft-vessel anastomosis and reduce skill and invasiveness.

Parallel lever faces retain the clamped bone staple, preserving compression during fracture insertion without continuous operator force.

This case shows how a swing-gate lockout and bridge member control firing beam movement for safer cartridge operation.

This case uses locally powered anvil lights to provide visual feedback on stapler position and orientation during anastomosis.

A non-expandable annular connector uses bendable staple pins to secure vessels, limit inner exposure, and support endoscopic anastomosis.

Overlapping staples raise density and seal strength while simplifying anvil design.

This case uses biased pins, C-clips, and camming surfaces to secure surgical stapler halves while supporting intuitive separation.

Local wall heights, support pillars, and a sled help align staple cavities while controlling firing forces.

Case hardening, dry film, and bone wax layers protect sliding stapler components during repeated firing cycles.

Spring-loaded latches engage shaft grooves automatically, resolving the tradeoff between firm fixation and fast one-handed detachment.

Complementary planar surfaces lock the articulation brace, supporting reliable stapling and cutting without inadvertent de-articulation.

A spring-biased lockout blocks firing until the single-use loading unit is properly seated.

A motorized clutch routes drive power between firing and articulation, positioning surgical tools for minimally invasive access.

A shaft-mounted end effector pivots into angled orientations, helping surgical tools navigate narrow tortuous paths and secure tissue.

Localized valleys, projections, and flexible tabs center varied staples, supporting consistent formation and tissue sealing.

A tissue thickness compensator uses hollow compressible elements to support staple fixation across varying tissue thicknesses.

This open linear stapler uses segmented anvil geometry and offset pin placement to reduce thickness and leakage risk.

Drivers trigger automatic adjunct release from the cartridge, maintaining placement while addressing leaks from staple holes.

A guide member and guide pin engage the knife blade, improving tissue confinement and reducing outward compression during cutting.

This case uses localized, height-varied cartridge ridges to compress tissue, limit slippage, and support secure staple formation.

Real-time drive-current comparisons automate anastomosis completion detection and stop the surgical stapler, reducing manual monitoring.

A surgical device with a rotatable jaw portion articulates relative to the shaft to position tissue precisely.