Anaesthesia TRIZ Cases

See how a removable filter fixing module filters refrigerant impurities in handpiece cooling de

See how a modular filter fixing module purifies refrigerant before skin application, reducing i

See how a removable filter module with universal coupling enables medical cooling handpieces to

See how pre-cooling a medium below target temperature and gate-controlled energy release enable

See how a flexible thermoelectric module with RF-welded liquid channels replaces ice packs to p

See how a hand-held cooling device delivers chilled fluid mist at -100°C to 15°C to anesthetize

Tilted crisscross spiral grooves reflect ultrasound waves back to the transducer, making needle placement easier to visualize.

Periodic in vivo balloon inflation and deflation preserves tissue spacing during radiotherapy while relieving continuous compression of healthy tissue.

Controlled cooling of retrolingual and retropalatal fat reduces airway obstruction in sleep apnea while limiting bleeding and damage to nearby tissue.

Continuous local anaesthetic delivery near anal nerves extends pain relief after hemorrhoidectomy and helps reduce opioid use.

A foot-controlled syringe pump lets one clinician inject or aspirate while limiting pressure to reduce nerve damage risk.

Indirect analgesia signals and PK-PD models guide closed-loop hypnotic and analgesic dosing to maintain anesthesia and avoid awareness or overdosing.

Porous absorbable tubes deliver medicines directly to wounds or body cavities, enabling localized treatment without repeated invasive administration.

A guided bone perforation approach replaces fragile needles to deliver mandibular anesthesia directly while reducing repeat attempts, swelling, and discomfort.

A nasal aerosol applicator uses premeasured doses and a safety interlock to let users target migraine medication without supervision.

Thin polymer membranes and integral tubes shorten the heat path and cut backpressure in patient temperature control cassettes.

Moderate heating followed by cooling reversibly blocks nerve conduction without tissue damage or initial firing, supporting chronic therapy use.

A foot-operated switch and pressure sensing let one clinician control injection or aspiration while preventing excessive pressure during regional anesthesia.

A porous heated cryogen path and valve control temperature and pressure for stable, precise cryotherapy cooling with less normal cell damage.

An angled 15–45° shaft compensates for tissue deflection, improving bone contact and anesthetic deposition near the inferior alveolar nerve.

Moderate heating and cooling pulses create a reversible nerve block while avoiding tissue damage and initial electrical firing.

An integrated actuator and clamp let clinicians adjust and secure the catheter tip with one hand while guiding an ultrasound instrument.

A capillary housing, radial projection, and clamp enable precise catheter-tip adjustment and one-handed fixation near nerves or nerve plexuses.

Holder tubes and heaters condition cryogen before spraying, while pressure regulation supports consistent cooling in hand-held cryotherapy.

Pharmacokinetic models and indirect analgesia signals adjust hypnotic and analgesic infusions for stable, responsive anesthesia control.

An inclined tip with a C-shaped opening helps handheld cooling devices support injections or laser therapy alongside treatment.

Ultrasonic transducer oscillates at specific frequencies to emit low velocity fluid streams, eliminating overflow and waste from conventional eye droppers.

A staircase method adjusts cooling depth and duration through multiple temperature transitions to optimize neuroprotective outcomes.

Segmented thermoelectric units enable rapid localized hypothermia, avoiding systemic side effects on healthy tissues.

One-way valve in vent path prevents air reentry and negative pressure buildup, eliminating bubbles that disrupt anesthetic delivery to tympanic membrane.

Multi-chamber container uses frangible seals and an indicator compartment to detect seal breaches via color change.

An ultrasonography-guided double needle device places analgesics in the rectus sheath, resolving inaccurate blind placement risks.

A veno-merse device employs a fixed cannula system with a one-way valve to prevent retrograde leakage of anesthesia fluid during vein harvesting.

Gas pressure expels pus deposits from sinuses before drug spraying ensures direct mucosal contact.

A CT-guided catheter system delivers topical numbing agents directly into nasal cavities with real-time imaging guidance.

Movable barrier mechanism adjusts effective infusion length to prevent excessive drug exposure.

A brain cooling system uses a thermoelectric cooler to chill breathable gas for targeted delivery.

A flexible chest drainage catheter uses an elastic indwelling member to anchor securely at the chest wall while maintaining a fluid passage.

Pre-mixed spinal anesthesia formulations eliminate on-site mixing to reduce human error, save time, and minimize medication waste during urgent procedures.

Manual syringe agitation produces airless ice slurry, eliminating arterial gas embolism risk from blender-introduced bubbles.

Continuous acoustic feedback from a fluid reservoir replaces manual tactile sensing, allowing operators to maintain visual focus on the needle during insertion.

Segmented distal perfusion sheath maintains arterial blood flow through an expandable outer lumen during endovascular procedures.

Aspiration kit uses a pistol-grip actuator and needle guard to secure syringe attachment for precise pus extraction.

Solid thermally conductive material coupled to a heat exchange apparatus cools cerebrospinal fluid, avoiding systemic hypothermia side effects.

Magnetometric detectors track needle position while impedance meters measure tissue properties for integrated ultrasound visualization.

Rigid support member deflects soft tissue to maintain needle positioning accuracy.

A regional anaesthesia injection apparatus uses a controller to monitor fluid pressure and volume during delivery.

Combines local anesthetic injection with electrical stimulation to promote vasodilation and muscle contraction.

A 4% cocaine hydrochloride pharmaceutical composition maintains stable local anesthesia through precise pH control and preservative systems.

Computer-controlled epidural pump adjusts background dosage rates based on real-time patient input signals.

Boring element penetrates palatine bone to create direct access, reducing risk of accidental vascular injection during nasal procedures.

Curved introducer guides injector to sphenopalatine ganglion, avoiding blind advance and cribriform plate damage.

Constant cross-section molded channels minimize pressure pulsations caused by abrupt tubing compression in peristaltic pumps.

Disposable infusion assembly uses embedded pressure sensing to identify epidural space entry, preventing needle misplacement and tissue damage.

A physiologic carbonate base reacts with local anesthetics to form a precipitated mass around the nerve.