Surgery TRIZ Cases

A ratcheting shaft rotates to retract excess bag volume, resolving the trade-off between small insertion profile and large specimen capacity.

Uniform diameter sizing prevents resizing complications and infection risks during penile prosthesis implantation procedures.

A glucose-responsive membrane alters porosity to release insulin automatically, resolving slow response times and mechanical weakness in closed-loop systems.

A single integrated device collects exhaled breath condensate and performs immediate viral detection using porous media.

A virtual 3-D field of view overlay guides operators to align the imaging volume with patient anatomy, reducing radiation exposure and procedure time.

A force measurement system generates immersive virtual reality scenarios to assess subject balance.

Double-walled microspheres coating a biodegradable polymer conduit release GDNF to repair long gap peripheral nerve injuries without autografting.

A medical powder spraying device uses a piston and elastic support mechanism to regulate powder flow.

A biocompatible spider silk implant guides nerve fiber growth across tissue gaps to restore electrical conductivity.

An integrated stiffening element in a catheter distal portion restores bending movement while reducing structural complexity and production costs.

Rotating prisms in the endoscope optical system adjust illumination direction to maintain uniform brightness across a variable visual field.

Dual nitinol baskets encircle and contain thrombi to prevent shearing, reducing distal embolization risk during minimally invasive removal.

Intermediate piezoelectric placement reduces scanner diameter while maintaining movement range in narrow endoscope spaces.

Segmented flexible fins dynamically bend to stretch colon folds, improving adenoma detection while reducing procedure time and tissue trauma.

A notification part announces jaw rest adjustments to reduce examinee anxiety during eye examinations.

A circumcision device integrates a rotatable cutting blade with a crushing assembly to sever tissue in a single operation.

A bendable tissue retractor with a shape-holding bite pad and adjustable cheek catch for customized oral cavity access.

Asymmetric optical design offsets the objective lens axis to prevent illumination flare while reducing capsule size.

A hyperspectral imaging device uses simultaneous dye excitation and spectral analysis to capture detailed luminescence signals.

Classification removes coarse particles from particulate fillers to reduce extrusion pressure and film defects in polymer compositions.

Nested valve housing and protruding plunger reduce assembly complexity while maintaining reliable suction sealing.

Removing ferrules and using a thin-walled sheath reduces the outer diameter of medical light guides, enabling easier insertion into narrow anatomical pathways.

A nonmagnetic radiation-sensitive material placed between the subject and detector enables simultaneous radiography and biomagnetic field measurement.

Guide jig positions on the acetabular rim to define precise cutting paths for bone removal during femoroacetabular impingement surgery.

Real-time CO2 monitoring directs valves to isolate alveolar breath, preventing cross-contamination between samples while maintaining measurement precision.

Lateral offset markers on a scleral contact lens enable precise torsional eye movement tracking by stabilizing the pupil signal against lighting variations.

A segmented medical kit with varying diameter and length absorbent bodies permanently bonded to suction tubes.

Laser cutting creates zones with different cut distances in an endoscope insertion tube to enable bending.

Merging measurement and dilation into one tool reduces procedural time and device complexity during penile prosthesis implantation.

Multi-stage sealing material delivery through an expandable tamponade member ensures complete puncture closure and prevents fluid leakage.

Switching between normal and high-sensitivity sensors maintains measurement precision while reducing energy consumption during oxygen saturation imaging.

Magnetic fiber optic coupler rotates the instrument while autoclave-resistant encapsulation prevents bacterial attachment and heat transfer.

A stereoscopic vision endoscope objective optical system integrates shared front lens groups with offset rear subgroups to produce parallax.

Hydrophilic slip coatings reduce base adhesion, directing lipophilic drugs to vessel walls and minimizing edge effect trauma.

An integrated slider and gearbox adjust probe spacing for real dynamic convergence, reducing external moving parts to lower contamination risk.

A tapered catheter body uses a variable durometer outer jacket to maintain structural integrity while navigating tortuous vasculature.

Combining triclosan, rifampin, and clindamycin in a medical device prevents resistant microbial mutations while extending protection beyond 190 days.

Segmenting the tubular sleeve over specific bending sections maintains sealing and electrical insulation while minimizing the endoscope footprint.

A one-handed implant extractor tool uses a spring-biased adjustment mechanism to engage surgical implants.

Integrating the casting mold into the transducer housing eliminates specialized tooling, enabling cost-effective production of custom shock wave devices.

A digitally controlled manifold resolves integration complexity by providing a standardized interface for interchangeable health monitoring tools.

A surface modification method grows polymer chains on rubber vulcanizates to create a chemically fixed lubricating layer.

Polycaprolactone composite materials enable injection molding of adjustable braces that prevent adhesion and improve patient comfort.

Angled spiral wrap edges nest within adjacent wraps to reduce axial elongation and improve anatomical tracking in medical devices.

A capsule endoscope rate converter increases transfer processing speed to accelerate image data transmission.

Inflatable pouches on an expandable speculum sleeve push back lax vaginal walls to maintain a stable cervix view.

Sharp edges on anchor hooks cut through endothelial tissue during extraction, preventing vessel rupture from traumatic removal.

An endoscope uses an inclined surface to guide fluid from a jetting nozzle across the observation window for thorough cleaning.

Molded interconnect device component integrates wiring patterns to connect piezoelectric actuators in optical scanning endoscopes.