Surgical Needles TRIZ Cases

When peripheral IV access is difficult or impossible, a hand crank rotates a penetrator through bone to reach the intraosseous space.

Limited-access surgery makes tissue engagement difficult; motorized electrode movement coordinates RF delivery and suction for controlled resection.

Pivotable arms separate the pericardium from the epicardium before needle or guidewire passage, reducing injury risk during access.

Detaching and reattaching a dynamic reference base can cause misregistration; this mount preserves tracking during neuronavigation surgery.

Pixel-sized graft harvesting uses fractional incisions to limit visible scarring and donor-site deformity during repeat skin procedures.

Fixed electrode spacing can limit tumor coverage; dynamic central and cylindrical electrodes adjust the ablation field during one procedure.

Fluorescence endoscopy localizes pathological tissue in situ, helping the biopsy system target relevant areas and reduce random sampling.

An independently advancing cincher tube isolates the snare from the torque shaft, preventing metal-to-metal abrasion during pacemaker retrieval.

A shielding element creates a visible shadow line to align both instrument sectional planes, avoiding repeated repositioning during X-ray puncture.

A tubular cover shields an elongated regenerative implant during needle insertion, enabling secure tissue placement with less patient burden.

Multiple channels combine diathermy cutting, hemostasis, anesthesia delivery, and sealed specimen collection, reducing instrument exchanges during biopsy.

External tanks, insufflator machines, and tubes clutter the sterile field; an integrated canister enables controlled media delivery from the surgical device.

Flexible probes up to 80 μm use beveled-tip steering to avoid guide tubes, reduce tissue trauma, and improve soft-tissue targeting.

Temperature sensors and independently controlled electrodes target spinal tumors while limiting heat exposure to healthy tissue.

A split clip housing and shielded interface enable reproducible removal from source holders without direct radioactive handling.

Separate housings support sterilization of monitoring units, while pre-assembled sealing simplifies user assembly and limits contamination pathways.

A rotational member and movable control lever expand endoscope tool movement, improving precision and access to hard-to-reach areas.

Integrated electrodes measure tissue impedance during biopsy to help identify suspect areas and reduce non-diagnostic samples.

Deployable protrusions create fine tissue wounds that stimulate new lymphatic vessels and reduce the burden of lymphedema treatment.

An integrated light source illuminates and laser-marks the biopsy site, reducing separate equipment setup during mammography procedures.

Multiple discrete notches and a fluid nozzle help a core needle biopsy device collect and transfer several tissue samples per insertion.

A porous-matrix gradient and tether let the collector expand after low-profile insertion for efficient, comfortable esophageal sampling.

A detachable cover and split monitoring components enable automatic assembly and electrical connectivity during one-trigger sensor implantation.

A lead-screw drive and latch limit piercer firing while enabling multiple tissue samples through one insertion near sensitive anatomy.

A clip attachment keeps short-lived radionuclide sources positioned and sealed against contamination during handling and transport.

Sequentially cycling microwave ablation probes limits interference and power consumption while forming predictable, shaped treatment volumes.

A mechanical-arm needle holder moves outside the irradiated region to reduce image obstruction during breast biopsy positioning.

The preinstalled sensor module reduces skin-attachment steps, while a reusable transmitter helps limit waste in CGM use.

A coiled aspiration shaft enables single-puncture marrow disruption and extraction while reducing pain and cortical wall puncture risk.

An attached conduit guides puncture and tissue cutting to center the arteriotomy, limiting vessel damage, dissection, and bleeding.

The internal arming member releases stylet and cannula hubs while reducing hand pinching and supporting single-handed, precise tissue sampling.

See how a skin-attached surgical camera uses automated manipulation to position the field of view while freeing the surgeon’s hands.

Sensors spaced along an ablation probe shaft compare measurements at distinct positions to determine treatment parameters for more precise tumor ablation.

Impedance feedback can stop RF energy when tissue contact or perforation changes, helping limit overheating during transseptal needle procedures.

The large-diameter cutting tip engages tissue to prevent slipping during endoscopic excision while the distal tube stabilizes projection and retraction.

Micro optical arrays scan fresh tissue and detect back-emitted light for rapid, high-quality intraoperative margin assessment.

Large or irregular mucosal lesions challenge visibility and wall safety; controlled injection and tunneling support precise en bloc resection.

Image-based feature detection tracks anatomical targets and guides scope positioning, reducing risks from improper advancement during procedures.

A needle no wider than 0.3 mm creates a small wound, while staged expansion reduces pain, bleeding, infection risk, and jewelry-fit irritation.

Separate infusion and aspiration lumens modulate biopsy-site pressure to increase stem cell yield and reduce blood contamination.

An ISO-compliant frame, compact water distribution, and adjustable legs help cooling towers fit transport, stacking, and adjacent placement.

A rotatable actuator uses teeth engagement to deploy thin injection needles and fully retract them, reducing bending, sticking, and tissue injury.

Reinforcing ribs around an endoscope valve aperture help limit fluid leakage and reduce instrument-passage force without sacrificing tear resistance.

Manual MRI instrument alignment can be inconsistent and slow; tunnel display markers guide precise positioning along a planned trajectory.

Angled transducer arrays and acoustic standoffs improve spinal visualization while enabling real-time, radiation-free needle guidance.

A templated macroporous silica sol-gel passively captures DNA and separates cells from vaginal discharge for non-invasive HPV testing.

Bulk RF heating at 40–47°C precedes fractional ablation or coagulation, supporting collagen remodeling with reduced pain and side effects.

Combining a puncture needle and implant in one catheter avoids catheter exchange, simplifying a coronary sinus–left atrium blood flow pathway.

Native or prosthetic leaflets can obstruct transcatheter implants; a steerable catheter crosses and cuts targeted tissue to create clearance.

Preinstalling the glucose sensor in the applicator reduces user steps, while a reusable transmitter limits waste across CGM use.