Surgery TRIZ Cases

Rotating member with locking mechanism enables quick wire attachment and detachment, resolving cleaning difficulties caused by narrow internal spaces.

Continuous suction draws tear fluid through a perforated catheter into a collection vessel for extended periods.

A medical device uses a buckling material structure to deliver consistent output force from variable manual input.

A modular medical imaging system connects multiple input modules to a central control unit for flexible configuration.

Crossbar maintains finger parallelism during handle actuation, resolving assembly difficulty for small modular elbow prosthesis components.

A hip stem centralizer datum guide creates reference marks on the femur to position the implant accurately within bone cement.

Selective resist on central conductor prevents misalignment and field of view shift while reducing application time.

An inverted surgical retractor pushes tissue away from the incision site using hooks oriented opposite the handle.

Segmented light guides connect via an optical connector, routing illumination from a grip-mounted source to resolve insert unit space constraints.

Electronic endoscope adjusts exposure periods per wavelength band to correct color balance without high amplification.

A management server stores pixel defect addresses and updates correction information when imaging elements are replaced, preventing erroneous corrections.

Pivot links and friction mechanisms in a cervical retractor allow blades to self-align with tissue movement, reducing pressure points.

A triple head thyroid retractor uses hinged arms with ratcheting mechanisms to adjust tissue exposure.

Cross-linked zwitterionic polymers form biocompatible coatings that minimize foreign body response and fibrous encapsulation on implantable devices.

Dynamic intragastric implant prevents body compensation by cycling shape and volume, maintaining long-term appetite suppression without surgical placement.

Segmented sheath links enable remote steering of flexible endoscopes, resolving limited range of motion and acute angle navigation challenges.

One-time programmable electronic component permanently disables medical device module after single use, eliminating contamination risk from reused instruments.

Endoscope system switches from digital tracking to physical movement to resolve slow responsiveness and image distortion during surgical procedures.

A sulfonate group-containing polymer coating creates a negatively charged, hydrophilic surface that reduces thrombosis and enhances cell compatibility.

Interchangeable control, insertion tube, and head sections enable a single modular endoscope to perform diverse imaging and therapeutic procedures.

A dual-chamber fluid collection device integrates a barrel and inner tube to separate specimen residue from sediment within a closed system.

A large footprint interbody cage system uses a two bladed mini-open retractor and pole for posterior-only transforaminal implantation.

An analyte sensor subassembly uses an integrated lead frame and spring members to maintain secure electrical contact with the sensor element.

A medical graft implant embeds a polymeric drug depot within a chamber formed by decellularized extracellular matrix tissue layers.

Segmented pivotable body creates a receiving channel that increases perceived tube diameter to resolve lubrication grip trade-offs.

Telescoping assemblies adjust areola markers relative to anatomical landmarks, resolving manual positioning variability in chest masculinization surgery.

A reusable capsule mounts to a catheter distal end with an integrated motor and shaft to rotate the ultrasound transducer.

Centrifugal removal of excess solvent from wetted endoprosthesis surfaces prevents lump formation and ensures uniform drug delivery.

A tipless retrieval device navigates tortuous anatomy by removing the distal tip, allowing access to impacted objects without structural interference.

Magnets attract through tissue to form a stent-supported opening, reducing surgical trauma while maintaining nutrient passage.

Inclined sealing surfaces distribute contact pressure to balance airtightness against operating force changes.

A wire-like holding portion moves circumferentially and longitudinally to distribute contact pressure across multiple digestive organ sites.

Segmenting the endoscope isolates expensive electronics in a hermetic housing, allowing single-use shafts to reduce waste and simplify disinfection.

Four-group lens configuration with specific focal length ratios corrects off-axis aberrations in compact optical designs.

Simultaneous abrasive and dopant delivery breaches oxide layers, resolving weak bonding in medical implants.

A medical device actuator mechanism uses a rotatable disk to alter the length of a biasing member, reducing the force required for operation.

Amphiphilic polymer scaffolds achieve tunable sphingosine 1-phosphate release kinetics by segmenting hydrophilic cores from lipophilic flanking chains.

Segmented laser-cut metal body maintains pneumoperitoneum pressure while enabling precise endoscope positioning in tortuous pathways.

A prefilled cap valve assembly directs fixative flow into a tissue container while blocking reverse movement.

A detachable tubular member fixes to the endoscope outlet portion to stabilize treatment tool disposition during insertion.

A catheter with a magnetic coupling component magnetically links to a guidewire conductive length to generate a detectable signal.

A channel irrigation system uses a pressure sensor and flow producing device to maintain target pressure in the manifold.

A light adjustment control unit uses optical black region pixel values to regulate illumination levels in body-insertable imaging devices.

An endoscope apparatus identifies optical adaptor types by measuring input impedance of conductive wires using alternating current signals.

Back projection of biplane x-ray images isolates metal objects to resolve needle positioning precision limits.

Continuous transdermal monitoring eliminates subject manipulation and tampering risks while maintaining measurement accuracy.

A medical imaging system uses an optical splitting mechanism to direct light toward separate detection elements for signal synthesis.

An asymmetric fiducial marker creates a unique radioscopic silhouette to determine the angular orientation of an implantable lead.