Surgery TRIZ Cases

A bioactive-coated embolization device uses extracellular matrix material to promote thrombus formation and reduce migration.

Segmenting the housing into two half-shells eliminates gluing steps for suction valve fixation, reducing manufacturing complexity and cost.

A wall portion shields illumination light between the objective and illumination lenses in an endoscope distal tip.

A disposable cylindrical adaptor transports secondary gas through internal channels to an endoscope via a universal inlet port.

A modular ultrasonic surgical instrument couples a reusable handle with interchangeable transmission assemblies to enable versatile end effector switching.

Graded bending stiffness in a NiTi marker anchors securely in tissue and reduces patient discomfort from external contact.

A scanning apparatus calculates distortion correction data by comparing detection light from multiple illumination patterns to align image sequences.

Nanoporous biodegradable polymeric thin films prevent burst release and thrombosis via controlled drug elution.

A friction roller translation system converts rotational actuator input into precise longitudinal tool movement within an endoscopic shaft.

A dual camera endoscope captures overlapping fields of view to generate panoramic, super-resolution, and three-dimensional images.

An eyepiece device accommodates thermal expansion of a brittle optical element via an internal expansion space.

Endoscopy capsule derives three-dimensional structure from reflected light intensity values, resolving spatial perception limits in monocular optics.

A fluid-filled balloon with spaced ring electrodes generates subsonic pressure waves via electrical arcs to disrupt calcified lesions.

A fluororesin sealing member reduces sliding resistance while maintaining water tightness in medical apparatus raising mechanisms.

An elastomeric band replaces rigid handles in a surgical stay, eliminating lever arm effects that amplify tissue stress and obstruct visibility.

Sizing instrument and patterning template enable precise autologous valve cusp reconstruction without reducing annulus diameter or causing pressure loss.

A gas feeding apparatus uses a pressure sensor and control circuit to regulate flow from a dedicated bottle into an endoscope conduit.

A priming and grafting method deposits a hydrogel coating on polymeric medical substrates to enhance surface lubricity.

An endoscopic system relays identification data through a light cable to automatically configure connected surgical devices.

Segmented slit regions and guiding channels house bending wires to reduce endoscope diameter while maintaining flexibility.

A pressure-propelled endoscope uses a fluid-driven piston head to advance through the body lumen.

An elastic film applies mechanical force to suppress venous pulsation interference, improving oxygen saturation measurement accuracy.

A flexible shell structure minimizes tissue friction and entrapment while expanding internal volume for service tubes.

Analyzing photoplethysmograph signal peaks and troughs to isolate consistent segments for physiological parameter extraction.

Local agent dispensing reduces systemic dye consumption and accumulation time while delivering clear tumor images.

A hand-held endoscopic system uses a rotatable C-mount coupler assembly to manage imaging and fluid parameters from a unified control unit.

Magnetic coupling retrieves magnets from cardiovascular passageways without complex surgery.

Optimized concentric lumen areas match solution viscosities to eliminate uneven flow and waste during mini-invasive procedures.

A heat radiation portion on the rear surface of an endoscope display dissipates power supply control circuit heat away from the operator.

An endoscope camera connection uses an insulating body to electrically isolate the optical recording device from the conductive main body.

A spectroscopic fluid measuring subsystem monitors disinfectant concentration within automated endoscope reprocessing circuits.

A vibration suppressing part prevents radial vibrations from destabilizing the base end, ensuring stable bending vibrations and precise spiral scanning.

A flexible coupling member interlocks an endoscope and treatment tool within an overtube to stabilize the observation image during laparoscopic surgery.

Relocating the erecting mechanism to the extension part via a movable member and wire prevents grip enlargement for easier disinfection.

Complementary concave and convex mounting portions replace complex straps to enable one-person operation of the combined endoscope system.

Flexible straps anchor to the spine and secure externally, reducing tissue damage and eliminating bed-mounted arms.

A vascular filter assembly uses a low profile sheath to constrain the self-expanding filter member during delivery.

A catheter system integrates a microbubble device with ultrasonic transducers to rupture bubbles and release therapeutic agents at specific vascular sites.

Flexible uterine and expandable vaginal devices measure endometrial impedance using fixed electrode arrays.

Segmented fluid control and nested channels maintain visualization while minimizing outer diameter to reduce patient discomfort during unsedated procedures.

Periodic amplitude modulation of the ultrasonic drive signal reduces fine mist plumes that impair surgical visibility during tissue cutting.

All trans-retinoic acid coating prevents neointimal formation and reduces cytotoxicity compared to synthetic antiproliferative drugs.

A collagen-coated serous membrane provides a smooth, non-adhesive surface on both sides.

A light detection controller adjusts photodetector multiplication factor and offset during non-effective periods to stabilize image quality.

Motion pattern identification associates scope head movements with operations, resolving the trade-off between device complexity and operational versatility.

A catecholamine-based coating synthesizes diazeniumdiolate functional groups on implantable material surfaces.