Surgery TRIZ Cases

Integrated sensors in a tilting surgical tensor provide real-time alignment data, resolving variability from patient anatomical differences.

A merging member with a gas/liquid supply tube stays within the coupling ring during bending.

Periodic action switches between visible light and null signals to determine distal end position, preventing eye damage from continuous bright exposure.

A radiation therapy system estimates three-dimensional target position and orientation using an external signal correlated with patient motion.

Endoscope apparatus differentiates early-stage cancer from inflammation by analyzing light scattering coefficients across specific narrowband wavelengths.

A cleaning instrument with a fluid channel and wiping facility operates inside the endoscope shaft to remove deposits from the light admission face.

A disposable sheath with radially expandable side rails creates working channels for multiple medical accessories on a flexible endoscope.

Merging separate suction units into one handheld device captures hazardous dental aerosols while reducing practitioner fatigue.

A microfluidic bioassay device integrates hollow microneedles with multifunctional electrode arrays to extract interstitial fluid for real-time marker detection.

A nested surgical camera assembly integrates multiple imaging shafts within a single receptacle to establish electrical communication through friction-fit contacts.

Overlapping elastomeric petals adapt to rectal pressure to contain diarrhea effluent and prevent leakage.

Segmented lens groups form clear images on large solid-state imaging devices, resolving noise from electrical enlargement.

Sister markers link excised tissue to in vivo margins via magnetic detection.

Differentiating elastic constants along a protective tube prevents optical fiber buckling while maintaining curving manipulability.

A modular surgical instrument system integrates a retractor blade with an inverted-arch curvature and a distractor pair for simultaneous tissue manipulation.

A biological sample collection device uses a movable portion and transfer means to push the sample against a storage medium.

Ovaloid distal portion minimizes interference with adjacent heart structures while maintaining secure retention.

Segmenting the optical connector into detachable portions allows easy endoscope cleaning without introducing joint loss that degrades power monitor accuracy.

High-temperature curing of PTFE tubing markings requires anti-shrinking devices to prevent thermal warping and maintain dimensional stability.

Segmented fitting and accommodation holes reduce stiff tip length while piezoelectric elements drive bending vibrations for efficient spiral scanning.

Fiducial markers with chemically shifted signal sources enable precise 3D spatial localization of invasive devices during magnetic resonance imaging procedures.

Graded flexural rigidity in a segmented medical catheter prevents kinks while maintaining structural integrity for easier insertion.

An ingestible capsule with pH and temperature sensors records physiological data to determine gastrointestinal transit times.

Segmented reservoirs contain electroconductive paste to prevent spread and short-circuits, ensuring reliable MID connections.

A selection mechanism compresses guide coils to alter the bendable part length in an endoscope.

A back-drilling ancillary uses a reamer with a longitudinal groove to guide a cutting tool stem, allowing the cutting part to protrude for bone machining.

Copolymer coating with controlled glass transition temperature prevents cracking during deployment while maintaining adhesion to the stent.

Electronic fluid measurement module paired with an antimicrobial gel sheet prevents probe infections during non-invasive body fluid analysis.

Segmented tool holders with self-aligning grooves and spring-biased pins enable rapid reamer changes, reducing heat generation during hip replacement surgeries.

Segmented packaging with nested components and local quality holding resolves the trade-off between bulky trays and unstable single-point attachment.

Segmenting the device into single-use optics and a reusable handle reduces costs while ergonomic controls improve navigation accuracy.

Side-mounting a disposable cannula on the reusable handle eliminates complex lens systems and cross-contamination risks.

Rectifier circuits transform AC induction signals into DC bias, enabling stable semiconductor transducer operation.

Coils on a self-expanding filtering basket trap emboli downstream from stenosis, preventing ischemic stroke during angioplasty.

A fitting pressing member uses a tapered narrowing portion to securely attach to endoscope fittings and maintain stable fluid flow.

Segmented spinal disc annulus closure devices resist ejection forces while maintaining sagittal motion flexibility through dynamic intermediate sections.

Flow-induced vibrations replace visual cues, enabling clinicians to detect fluid changes via touch during thrombectomy.

Dispensed elongated solder resist patterns prevent unwanted wetting on complex molded interconnect device surfaces, ensuring reliable component bonding.

A pressure modulating device directs embolic agents into the stomach fundus while preventing reflux into non-target vessels.

Externalizing the rotating drum control line frees internal shaft volume for a large work channel while maintaining high-resolution imaging.

Solidified glass frit seals boroscope probe tips against moisture ingress and chemical attacks that degrade epoxy bonds.

A capture device grips pre-curved guide wires emerging from opposite directions within cardiac chambers to enable precise prosthetic valve deployment.

Independent rotational and translational controls decouple bending plane orientation from curvature, reducing friction with patient tissue.

Silane coupling agents anchor photopolymerized resin to metal substrates, preventing peeling and maintaining lubricity during wet insertion.

A nickel-free gold-copper-aluminum alloy delivers superelasticity at room temperature through controlled martensitic phase transformation.

An integrated aperture in the fiber tube orients optical fibers automatically, eliminating manual adjustment and reducing endoscope assembly complexity.

A slidable collar moves a protective sleeve along the Yankauer suction tube, using an internal wiper seal to scrape mucous from the exterior before storage.

A pivotable arm engages a toothed rack to secure the lock, eliminating thumbscrew protrusions that interfere with physician grip.