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.