Catheter TRIZ Cases

A biometric pressure mapping system uses sensor arrays and actuators to create dynamic skin surface maps for physiological analysis.

Expandable nitinol basket captures hard clots without proximal occlusion, eliminating embolization risks during retrieval.

Radial k-space acquisition with golden angle scanning enables MR angiography generation through iterative reconstruction.

A fluid collection funnel drains blood into a vessel for automated electronic measurement of postpartum hemorrhage volume.

Radial housing deformation activates a carrier mechanism that exposes a sterile needle, preventing user injury after use.

An oscillator applies an alternating current signal to a common ground electrode for intra-cardiac contact assessment.

A protective lubricious sleeve retains gel on a catheter to reduce friction while preventing bacterial transfer and mess.

Portal vein catheter enables direct hepatic insulin delivery, reducing dosage and improving response time to glucose fluctuations.

A catheter switching assembly selects electrode pairs to deliver oriented irreversible electroporation pulses.

A photoelectric sensor array obtains main-path and auxiliary-path light signals to extract pulse data from skin surfaces.

Segmented acoustic emitters treat eccentric calcific lesions and chronic total occlusions without increasing manufacturing complexity.

A phase shifter adjusts the relationship between two antennas to shape electromagnetic energy distribution.

Merges manual auscultatory and automatic oscillometric systems in one enclosure to resolve versatility versus complexity trade-offs.

Dual guide holes in a catheter fixture prevent backflow and reduce skin infection risks from adhesive bands.

An integrated sensor introducer mechanism within the transmitter assembly simplifies continuous glucose monitoring insertion.

Hinged spines transition a medical probe between collapsed and expanded states, preventing spine breakage from metal fatigue.

Electrochemical impedance spectroscopy detects signal dips to enable self-calibration, eliminating finger stick requirements.

An integrated catheter assembly detects urine oxygen tension via fluorescence quenching to enable early acute kidney injury diagnosis.

A fluid jet delivers controlled ablative energy to erode ocular tissue with high precision.

Quantifying ventricular synchrony through time-based electrical characteristic analysis across distributed heart points.

A radiation-sensitive hydration gel retains fluid until sterilizing exposure degrades the matrix to release liquid.

A photoplethysmographic system analyzes pulse transit time and amplitude to detect patent ductus arteriosus in infants.

Flat sheet electrodes form a tubular sensor body with constant inter-electrode spacing, resolving immobilization accuracy issues.

Near-infrared oximeter determines blood oxygen saturation through tissue absorption, eliminating invasive catheter risks and measurement delays.

Graded enzyme distribution within the sensing layer sustains measurement accuracy and stability under subcutaneous oxygen limitations.

Dual adhesives secure the sensor to the body mount while releasing it from the inserter, eliminating complex interconnectors and reducing manufacturing volume.

An inner balloon extracts heat from target tissue while a pressurized outer balloon prevents non-targeted exposure to cryogenic agents.

A fiber optic probe integrates thin flexible photodetectors directly onto optical fibers for compact in vivo tissue analysis.

Inflatable balloon displaces air from sensor electrodes to establish direct mucosal contact for accurate impedance measurement.

An implantable ischemia detector monitors coronary sinus oxygen concentration to identify transient physiological changes.

Asymmetric crescent ribbons embedded in polymeric walls boost longitudinal stiffness for smaller diameter medical devices.

An ultrasonic transducer array scans the ear canal to generate precise geometric data for hearing device fitting.

A staple cartridge integrates a tissue thickness sensing module with a removable power key for state management.

A glucose sensor system detects signal artifacts by comparing received data with filtered data to identify residuals exceeding thresholds.

Segmented pulleys tension a drive strip to improve catheter linearity while reducing operator radiation exposure.

An asymmetric keyway prevents needle rotation within the housing, ensuring the bevel indicator accurately reflects the tip position for safe insertion.

A catheter anchoring device uses a mechanical interlock to deploy sharps beneath the skin for secure fixation.

Injection molding integrates a septum into a catheter hub, eliminating separate assembly steps that cause fluid stagnation and production complexity.

A surgical system uses a light emitter and sensor array to determine blood vessel size through tissue transmission.

A patient status notification device routes alerts to specific destinations based on biological information thresholds.

Segmented subcutaneous anchors pivot to minimize tissue trauma during removal, resolving the trade-off between fixation reliability and patient safety.

A catheter control handle uses a rotational cam to drive puller wires for precise deflection and contraction.

A wavelet scalogram analysis system combines multiple scale bands to extract physiological information from noisy signals.

A sensor-retention structure secures pressure sensors to cardiac tissue using support struts and retention fingers.

An iron selective conductive circuit detects hemorrhages by measuring impedance shifts from blood contact, resolving reliability and complexity trade-offs.

Scattering particles stabilize polymer graft opacity, reducing analyte reading errors from light absorption variations.

A disposable cryotherapy probe cools pelvic floor muscles to relieve pain and spasms.

An integrated test strip houses a lancet actuated by the meter to pierce skin and collect blood samples directly at the reaction site.