Catheter TRIZ Cases
- Electroformed Pleated Catheter Tip for Flexible Tissue Contact
An electroformed pleated catheter tip improves tissue contact and bendability while preserving kink resistance, sealing, and sterilizability.
- Vacuum Pressure Regulator With Flexible Membrane for Blood Draw Stability
A flexible membrane regulator buffers evacuated-tube vacuum spikes to prevent vessel collapse and maintain stable blood collection flow.
- ECG Signal Routing via ADC-DAC Conversion for Legacy Instrument Compatibility
ADC-DAC ECG routing lets digital instruments process filtered signals while preserving analog output for legacy medical recorders.
- Electrochemical Monitoring Circuit for Bias-Offset Current Sensing
A differential ADC and transimpedance amplifier isolate tiny electrochemical currents from bias offsets for accurate, low-power continuous monitoring.
- Range-Gated RF Physiology Sensor With Stable Pulsed Oscillation
Pulsed RF range gating with injection-locked oscillation improves breathing and heart-rate sensing while reducing false triggers and interference.
- Cutting Electrode Break-Edge Manufacturing for Precise Tissue Cutting
A rated break location forms a narrow exposed cutting edge, simplifying overmolded electrode manufacture while improving current concentration.
- CMOS Electrochemical Imaging Chip With Op-Amp-Less Potentiostat
An op-amp-less delta-sigma potentiostat and efficient impedance circuit cut implantable CMOS chip power to about 50 nW while preserving speed and low noise.
- Cutting Electrode Fracture-Edge Molding for Precise Surgical Cutting
A preformed breaking point enables low-force separation after overmolding, creating a precise cutting edge with concentrated current and lower tissue damage.
- ECG Multiplexer Reference Switching to Reduce Channel Noise
A DPDT multiplexer switches each ECG channel through a reference voltage first, cutting switching noise and improving signal clarity.
- Range-Gated RF Physiology Sensor Circuit for False Trigger Reduction
Pulsed RF range gating with a dielectric resonator oscillator cuts false triggers and improves respiration and heartbeat sensing at defined ranges.
- Differential Light Sensor Amplifier for Compact Optical Heart Rate Monitors
A differential amplifier with variable resistance cuts OHRM circuit footprint, power use, noise, and slow high-gain response.
- Adaptive Signal Filter for Pulsation Noise Suppression
Separating steady and non-steady signal components lets this adaptive filter suppress pulsation noise with less processing load and delay.