Catheter TRIZ Cases

Slot-based articulation enables independent spline rotation, preventing short circuits and reducing stress during catheter collapse.

A swallowable capsule integrates a lateral flow strip and sensor to detect gastrointestinal biomarkers.

Staggered diffusion holes in a catheter tip reduce jet velocity and backpressure during rapid infusion.

Tensile members reinforce nonconductive spine covers to prevent elongation and shorting in high-density electrode assemblies.

Integrating a button-cell battery within the transmitter housing eliminates separate power packs, reducing device complexity and simplifying sterilization.

An embedded sensor tracks instrument position in an electromagnetic field, eliminating repeated fluoroscopy checks.

Multi-channel optical coherence tomography probe rotates fiber bundles to convey light via a mirror for parallel imaging.

A distributed electrode configuration accelerates analyte sensor hydration through optimized layer segmentation and three-dimensional spatial arrangement.

Dispersed laser nodes on a capture portion ablate stones simultaneously, reducing retropulsion and procedure time.

Actuator alters deflection wire path length inside housing to steer the shaft tip, resolving assembly complexity and control precision trade-offs.

Segmented projections and a locking mechanism prevent accidental dislodgment while maintaining tube patency.

A releasable mounting device couples a radioactive detector to surgical instrument jaws, enabling external positioning without obstructing tissue grasping.

Crimped metal ferrules anchor fiber puller members to a flat beam, solving anchoring complexity while preventing breakage and ensuring smooth deflection.

A diagnostic probe calculates radial and circumferential signal intensity changes to identify minute scatterers within blood flow areas.

Curved clip body axially expands to bias an arm radially outward, resolving the trade-off between reliable needle tip shielding and structural complexity.

A disposable lancet cap uses opposing flat faces and blind holes to ensure correct orientation and safe needle retraction.

A manual skiver guides catheters past a transverse blade within a longitudinal recess for precise material removal.

Synchronizes cardiac mapping signals using template matching to align measurements across multiple heart beats.

A hydrophobic EFEP barrier layer bonds to reactive polar polymers for stable catheter shaft construction.

A radial artery compression device uses a rotating knob to drive a threaded shaft that extends or retracts a compression pad for precise pressure control.

Offset protrusions prevent reinsertion of the shielded needle, resolving manufacturing complexity and user operation bottlenecks.

A nasogastric tube securement system uses a repositionable coupling layer attached to a fixed base layer for stable positioning.

Processor divides atrial fibrillation electrograms into time periods to select candidate points by magnitude and remove duplicates within intervals.

Control means adjust micro-contact projection length, resolving the trade-off between detection precision and brain tissue damage during insertion.

Segmenting the plunger rod allows removal after sample collection, preventing atmospheric air exposure and simplifying transport.

A body fluid sampling unit integrates a spring-driven puncture mechanism with a removable test strip holder for rapid glucose monitoring.

Insert molding forms catheter tips using a pre-heated plug to maintain multi-layer tubing structure integrity.

A plate-shaped catheter fixing tool uses a rotating securing member to constrict the retaining slot and hold the tube in place.

Offset jaw surgical forceps pivot within a common plane to grip bone contours, reducing soft tissue injury and minimizing required exposure area.

Segmented rotary engagement allows needle retraction without simultaneous biasing movement, reducing device complexity and manufacturing costs.

A reinforced steerable sheath assembly anchors pull wire couplings via a high-durometer section, preventing displacement failure during actuation.

A transcutaneous sensor uses variable stiffness to accommodate host movement.

A drainage hub maintains a uniform internal diameter to ensure fluid-tight connections between catheters and lines.

A sterilized optical analyte sensor uses fluorescence correction to maintain measurement accuracy.

A wireless blood pressure measurement system transmits physiological data via radio signals from a housing-mounted detection unit.

A base and lid device holds flexible medical tubing in parallel channels to manage length.

A disposable protective sleeve shields catheter electrical cables with a flexible tubular barrier.

Identifying landmark points on arterial pressure signals approximates flow contours, enabling continuous hemodynamic monitoring without frequent calibration.

Random feature subsets give classifiers individuality, ensuring misclassifications do not repeat across the array.

A communication system determines resonant frequency using phase differences between energizing signals.

A data processing unit subtracts a time-dependent zero-signal level from continuous glucose sensor measurements to isolate the target analyte.

Asymmetric flexible structural bones enable a growable continuum instrument to navigate complex curved cavities while maintaining operational stability.

Automated positioning device adjusts insertion speed to minimize tissue trauma, enabling immediate accurate analyte data without extended calibration periods.

A disposable CVC blood drawing assembly uses a single removable port to connect multiple syringes for sequential flushing and sampling.

A medical device system applies unique drive frequencies across electrode pairs to measure complex impedance values for tissue contact assessment.

An implantable processor computes cardio-respiratory ratios to determine sleep stages.

An integrated catheter adapter combines blood draw and flush devices to eliminate repeated connection steps that cause contamination and hemolysis.

Dynamic spline adjustment resolves the trade-off between broad anatomical coverage and high spatial resolution in electro-anatomic mapping.

Selective cable routing minimizes friction on insulating surfaces, resolving the trade-off between current control precision and wear resistance.

A flexible catheter sheet array of electrodes adapts to varying organ surfaces for precise electrical mapping.