Surgical Needles TRIZ Cases

A dual tube structure for endoscopes uses a polypropylene and polydimethylsiloxane composite to reduce sliding friction between inner and outer surfaces.

A sampling cartridge aligns a collector and storage container within a shielded body to capture tissue samples securely.

Internal cannula moves axially and angularly within an external guide to align sampling holes for precise bone marrow extraction.

Angled elastomeric targeting cube secures to grid plates via self-grounding friction for precise biopsy alignment.

A double-axis sampling tool uses a lever mechanism to couple cutting and pushing elements for simultaneous tissue extraction.

An integrated bone collection trap employs a plunger and filtration screen to separate blood from bone, reducing mess and complexity in spinal fusion surgeries.

External magnetic fields steer a magnetizable biopsy tool through tissue, resolving the trade-off between navigation precision and device complexity.

A removable collection container attaches to a connection housing with shaver-side and vacuum-side flow ports.

A microwave ablation system integrates a radiometer to measure thermal emissions from the treatment site.

A compression spring urges a protective sleeve to cover the electrocautery pen tip and trigger, preventing accidental activation.

A coaxial introducer cannula hub features a radially extending latching lever that enables single-handed rotation and disconnection from the biopsy apparatus.

Segmented fixation members with guide apertures reduce tissue irritation while maintaining attachment strength.

Segmenting the LED array from the electrode tip via an optical waveguide resolves thermal safety conflicts while maintaining high-intensity illumination.

A removable tip device with a deformable securing feature stabilizes bone coring operations.

Segmented probe and holster design with pneumatic vacuum assists single-handed tissue collection while managing device complexity.

A percutaneous annuloplasty structure uses a ratchet mechanism to anchor and adjust the mitral valve annulus.

An orthogonal liquid conduit with a lateral aperture maintains unobstructed fluid flow regardless of the treatment tool state.

An extendable needle instrument delivers radiofrequency energy to the posterior nasal nerve through a protective outer tube.

A biopsy system deploys site markers using a tissue sample holder mechanism for precise procedural identification.

A marker delivery device actuator uses a retainment mechanism to securely position and deploy implantable markers within a cannula.

An integrated guiding tube and sliding rod on the clamp body allow precise needle positioning without separate handheld instruments.

A manual intraosseous device segments the handle and penetrator to drive a needle through bone tissue.

An electrochemical skin therapy device modifies tissue using controlled electrical reactions without generating heat.

A sample holder uses a hydrophilic polymer to clamp biological specimens securely without adhesives.

Segmented and dynamic MRI coils adapt to patient anatomy to resolve the trade-off between high signal-to-noise ratio and needle access.

Automated image processing calculates three-dimensional coordinates of the biopsy needle and target region to ensure accurate tissue sampling.

Integrated marker delivery system in removable biopsy tray reduces procedural complexity by combining sample collection and site marking into one device.

A transseptal access device pulls septal tissue toward a stationary needle via negative pressure applied through a funnel-shaped element.

Real-time image processing identifies prostate landmarks to resolve the contradiction between procedural safety and system complexity.

A coupling needle draws an ornamental piece through a pierced hole and detaches, solving the difficulty of securing nuts on atypical body parts.

Automatic multi-planar reconstruction of device fiducials resolves manual needle placement errors by providing real-time visualization of registration results.

Display processor shows relative positions of trocar insertion site and instrument distal end on a surgical robot screen.

Helical coil electrode resects tissue cores while electromagnetic tracking ensures precise three-dimensional positioning.

Eccentric lock mechanism anchors MRI biopsy targeting cube to grid plate, resolving positioning accuracy versus attachment security trade-off.

A dual-function ureteroscope channel guides wire deployment while protecting the puncture tip, resolving complexity issues in retrograde renal puncture systems.

A miniature robot system aligns surgical tools using a three-way registration scheme.

An integrated surgical tool merges tunneling and carrying functions to eliminate threaded tip changes, reducing procedural complexity and thread damage risk.

A cannula and rod assembly creates a subcutaneous pocket while holding an implantable device within the passage.

An optical sensor base replaces mechanical speculums by using a camera to visualize internal anatomy, reducing patient discomfort during gynecological exams.

Segmented cutting and inflation separate tissue layers, reducing perforation risk while maintaining procedure efficiency.

An articulating stylet enables precise left atrial access while minimizing tissue scraping and embolic risks during transseptal procedures.

T-shaped fastener segments connect nested needle assemblies to eliminate time-consuming loading operations.

A pivotable surgical camera assembly synthesizes three-dimensional video images from fixed angled lenses.

A lancing device uses a plate spring to move the lancet holder between cocked and puncture positions during single-handed activation.

Segmented housing and sliding external members enable precise catheter placement without radiation imaging, reducing operation time during spinal procedures.

A tactile sensing device detects applied pressure to generate real-time voltage data visualizing bone and non-bone structures.

Reconstructed breast images enable computerized calculation of optimal biopsy needle routes, avoiding obstacles and ensuring precise tissue sampling.