Catheter TRIZ Cases

Recessed regions in the catheter braid distal end increase bonding area with the inner layer, reducing peaks to prevent penetration and improve pushability.

Swivel joint maintains transducer level during patient movement, eliminating constant manual adjustments.

Segmenting the access path with a rigid cannula prevents fibrin sheath obstruction and hemolysis during blood collection.

A gastrointestinal implant delivery system uses an atraumatic tip with a guidewire rail to deploy the device.

A cam driver and cam bar pivot jaw members to maintain alignment, reducing design complexity while ensuring reliable tissue grasping.

Sequential electrogram analysis computes AFCL gradients to map activation patterns, resolving the trade-off between mapping precision and device complexity.

Segmented distal end portion with tapered tubular bodies resolves the contradiction between flexibility and stability, increasing atheroma storage capacity.

Removing sidewall eyelets eliminates urethra trauma while a single distal opening reduces turbulent fluid forces to increase drainage rate.

An annular LiDAR system uses alternating emitters and sensors to capture photon data across multiple wavelengths.

A catheter shaft uses opposing and parallel wire winding to tailor flexibility along its length.

Optical heart rate sensors replace invasive blood tests to estimate anaerobic threshold, reducing user discomfort while maintaining measurement precision.

Virtual simulation calculates cold front advancement from probe positions, preventing healthy tissue damage during cryosurgery.

An intrauterine balloon catheter augments uterine contractility by applying directed mechanical forces, reducing labor duration and Cesarean section risks.

Flexible coaxial RF shielding reduces parasitic capacitance to improve blood pressure sensing accuracy without bulky insulation.

Centering wires extend from a sheath to brace against the vessel wall, preventing sub-intimal entry during device placement.

A glucose monitoring system uses temperature data to validate sensor signals and reduce false hypoglycemic alarms.

An expandable catheter ablation device delivers thermal energy to the aortic wall to interrupt sympathetic nerves.

A medical imaging content apparatus provides real-time guidance to stabilize patient conditions during capture.

Photosensitive polymers release nitric oxide via light exposure, resolving foreign body responses through precise spatial control.

Optical coherence tomography images neural tissue to detect vacuole patterns, replacing slow biochemical assays with rapid non-invasive screening.

A flexible transdermal platform uses voltage pulses to create capillary openings in the stratum corneum for continuous interstitial fluid sampling.

Ribs and slots on a rigid inner core enhance adherence to a pliable over-layer, preventing delamination in feeding tube ports.

A wireless optoelectronic sensor uses a photovoltaic module to convert light into electricity for untethered neural signal recording.

Optical imaging measures cortical hemodynamic patterns to detect awareness, replacing complex MRI equipment with cost-effective sensors.

An offset inner cannula within an outer tube creates a suction device that prevents blockages during fluid removal.

Segmented cuffs clamp the tragus to resolve size versus stability trade-offs in ear-based monitoring.

A thermal regulation catheter circulates temperature-controlled fluid through an inflatable heat exchange vessel at its distal end.

Crimped legs replace soldering to secure electrodes on spines, reducing manufacturing time and failure risk.

Segmented catheter needles extend through vessel walls to deliver cryogenic fluid, enabling precise renal nerve ablation without balloon limitations.

A flexible base body with integrated coupling structures enables removable transmitter mounting for compact physiological signal monitoring.

Bio-compatible resilient plastic light channels transmit emitter optical energy while blocking ambient light in wearable physiological sensors.

Radiofrequency phase shift analysis calculates cardiac output, replacing invasive thermodilution with non-invasive impedance measurements.