Catheter TRIZ Cases

A securement device uses a self-healing casing to enclose catheter lumens and form a tight seal around the injection site.

Twisted proximal lumens in a segmented medical probe shaft reduce rotational whipping, enabling precise tissue engagement without unintended catheter movement.

Segmented components reduce bulk while intermediary mechanisms lower user effort for reliable deflection control.

An enzyme sensor uses an anchored cofactor to enable continuous electrochemical sensing of ketones in vivo.

A catheter structure integrates electrodes and therapy delivery at the distal end for simultaneous tissue localization and treatment.

A single-button skin puncture device consolidates depth regulation and lancet ejection to reduce control complexity for diabetic patients.

Intrabody probe electrodes generate and measure electrical fields to estimate spatial position coordinates, reducing sensitivity to external variations.

Segmented spine design reduces manufacturing complexity and cost while improving maneuverability in complex anatomies.

A disposable sensor device uses a bridge circuit to enable parallel monitoring connections.

A vacuum-assisted vessel closure device pulls blood tissue into a cavity for precise sealing.

A wearable device refines photoplethysmographic heart rate data using a physiological model informed by activity context.

Multi-frequency impedance measurements assess lesion depth and quality by comparing baseline and post-treatment electrical conductivity spectra.

Segmented flexible fingers with inner protrusions prevent lumen occlusion while securing the catheter against slippage and rotation.

A flexible on-skin sensing system with a hydrogel adhesive layer detects blood oxygen saturation and temperature via photoplethysmography.

Design methods locate tibial keels and femoral stems within specific anatomical zones to prevent cortical impingement while ensuring stable implant fixation.

Internal butadiene blocks in styrene-butadiene copolymers eliminate plasticizer need, resolving health concerns while maintaining tubing reliability.

Multi-lumen cryoablation catheter with balloon occlusion concentrates cold energy to prevent blood flow overheating during tissue ablation.

Segmented inner and outer catheters with hydrophilic coatings reduce friction to navigate tortuous vasculature and shorten procedure time.

SMS feedback loop enables chronic condition self-management by removing third-party intervention and reducing device complexity.

Multi-frequency impedance measurement determines fluid volumes to resolve accuracy trade-offs in non-invasive glucose monitoring.

Segmented base and intermediary trenches prevent tubing displacement without crimping, reducing skin irritation.

A catheter system combines localization and ablation capabilities using conductance data to create a profile of body lumens.

A catheter device features expandable fluid delivery elements that transition between retracted and expanded positions via a compression sheath.

A medical instrument illuminates internal materials with electromagnetic radiation to enable real-time tissue visualization.

A non-resonant unbalanced lossy transmission line structure delivers microwave energy into biological tissue within electrosurgical forceps.

A cryosurgical system delivers liquid and heated gaseous cryogen to a probe tip for sequential thermal processing.

Porous alginate microcapsules embed radiation-sensitive dyes to detect internal oxygen levels, preventing cell death from hypoxic conditions.