Surgery TRIZ Cases

Hermaphroditic coupling devices join vessels without piercing walls, eliminating suturing time while preventing tissue damage.

A microendoscope integrates orbital angular momentum processing with fluorescence spectroscopy to detect tissue characteristics.

Multi-stage thermal expansion of PLLA tubes achieves thin strut fatigue strength while minimizing vascular injury.

Multi-band directional illumination on an endoscope cap generates shadows that enable a processor to calculate convex portion sizes within specific ranges.

Distal loops reduce radial support motion to preserve open filtration area and prevent vessel wall contact.

A head-mounted operation input unit switches control modes based on relative position detection to prevent unintended motion of displayed objects.

Graded crosslinking stabilizes the proximal implantation site while allowing distal resorption after nerve repair.

Mirror-polished steel prevents organic particle deposition while a silicone seal ensures hermetic closure, resolving sterilization and contamination issues.

Optical detection system identifies meconium in amniotic fluid using immunoassay strips, enabling early fetal distress diagnosis without invasive procedures.

A hard-tube endoscope uses threaded ring sleeves to drive axial movement and precise bending of the insertion tube.

An external motorized mechanism rotates the sub-bending knob via a wheel, reducing finger strain during independent operation switching.

A scanning endoscope system adjusts drive signal amplitudes and detection thresholds to maintain optimal scanning conditions.

A flexible membrane presses rotatable members against a hollow cylinder to amplify torque, simplifying the drive structure and reducing manufacturing costs.

Lab on chip technology analyzes saliva biomarkers in a mouthguard to reduce false positives from helmet accelerometer data.

A shape memory alloy radial dilator expands to create a pathway for large cannulas.

Endoscope system corrects color image data ratios using light intensity parameters to calculate hemoglobin oxygen saturation levels.

A portable level sensor uses a flexible resistor element to detect bag fullness via resistance changes.

Segmenting the optical fibre into a universal core and interchangeable heads resolves volume and complexity trade-offs in medical device management.

An optical adapter splits light signals to enable real-time visualization of subsurface structures without exogenous dyes.

An implantable optical sensor detects analyte levels via luminescence quenching to enable continuous monitoring.

A rigid ceramic circuit substrate connects to an endoscope image sensor using vertically extended terminals for robust mechanical engagement.

Disposable films on surgical camera optics allow intracorporeal cleaning, reducing operation time and workflow interruptions.

Segmenting the housing from the insert via a single rim opening resolves liquid ingress risks while maintaining manufacturing flexibility.

A calibration device determines the center point of circular objects using spatial coordinates from a computer tracking system.

A super-elastic alloy bending tube uses alternating slot arrays to enable multi-directional articulation for endoscope distal ends.

An endoscope image pickup unit positions a first electronic component at a specific distance from a wall surface to create a controlled resin injection path.

Illumination controller switches multiple light emitters with identical color components in a predetermined sequence to maintain consistent brightness.

A multi-layer fiducial marker integrates radiopaque materials and high-contrast graphic patterns for precise spatial localization.

A graphical interface displays fertility estimates by moving an interactive cursor across a date range on a client device.

An endoscope camera optical system projects images as non-parallel light through relay and eye lens modules to a digital ultra-high definition camera.

A three-way connector with a septum valve allows clinicians to collect drainage samples without interrupting continuous patient fluid removal.

Pre-tensioned wires inside a cured elastomeric cavity convert pivoting control into precise bending movements without complex post-processing.

A microfracture pick shaft with an integrated strike plate transmits impact force from a surgical instrument to the distal tip.

Segmenting the guide tool into independent channels prevents interference between the endoscope and knife, ensuring precise ligament release.

An integrated sinus dilation instrument combines aspiration, fluid delivery, and waveguide illumination within a single probe structure.

A telescoping medical tool handle uses a spring-loaded locking sleeve to secure an extension shaft at discrete axial positions.

Hydrodynamic focusing in microchannels creates uniform shear fields that eliminate polydispersity, enabling precise 100 nm to 300 nm liposome size control.

A data input platform uses differential graph representations to enable flexible record association and batch entry.

A piezoelectric endoscope swings an illumination fiber through a precision ferrule joining member to enable stable optical scanning.

Dynamic positioning of multi-microneedles reduces skin compression and prevents fluid leakage during intradermal injection.

PEG-PLA-PEG triblock copolymer gel overcomes chitosan scaffold stability trade-offs by enabling controlled biodegradation via PLA hydrolysis.

Segmented lens elements with optimized curvature radii resolve the trade-off between device diameter and imaging distortion in minimally invasive surgery.

A temperature compensation circuit with a differential amplifying section corrects sensor output signals in the distal end portion of an endoscope.

Concave breakable sections in the endoscope distal rigid section enable imaging unit removal while maintaining structural rigidity and electrical insulation.

A collapsible intravascular pump with a self-expanding cage delivers hemodynamic support through percutaneous access.

A medical aspirator employs a constant force spring mechanism to stabilize suction pressure, preventing tissue damage and contamination from variable force.

Adjusts 3D endoscopic image parallax to reduce user burden during medical procedures.

A capsule endoscope uses an external resistance generator to suppress moving speed through the esophagus.

A fluorescence analysis system uses periodic LED excitation to isolate fluorescent signals from ambient light.