Surgical Needles TRIZ Cases

LYST protein inhibition creates a pro-regenerative environment that prevents neointima formation while preserving re-endothelialization.

Coordinated cutting member and outer tubular member motion eliminates dead space during biopsy procedures, preventing trauma to surrounding tissues.

A biopsy sample basket moves along a longitudinal axis to deposit tissue into a collection tank, eliminating vacuum system complexity.

An integrated endoscopic sampling sheath combines visualization optics with fluid distention and suction mechanisms for simultaneous uterine examination.

Embedded wires in a polymer body improve pushability and kink resistance, reducing contamination risk during biopsy procedures.

A miniature drilling system with a hypodermic guide tube and cortex adapter prevents bone closure while enabling targeted treatment delivery.

A protruding pin electrode applies RF energy to discrete skin volumes, heating tissue to coagulation temperature.

Pneumatic blowers replace electrostatic fields to reduce energy consumption and eliminate discharge risks during swab production.

A catheter receptacle features a laterally facing opening matching a holding member contour for secure device passage.

Real-time focal point updates compensate for patient movement between imaging and procedure to maintain puncture accuracy.

A medical dilator merges cautery and dilation functions into one apparatus.

An admittance-controlled Stewart platform simulates abdominal tissue penetration, reducing surgical error rates during laparoscopic training.

A preoperative planning system calculates freezing and heating dosages to achieve uniform thermal distribution in heterogeneous tumor tissues.

A surgical biopsy device uses a segmented cutting element to sever tissue during a single insertion.

Interchangeable inserts and contoured padding support patient positioning during breast biopsy procedures to alleviate discomfort from compression.

An angular sensor detects tool orientation discrepancies to eliminate manual angle adjustment errors during percutaneous interventions.

A guidance system calculates needle trajectory using known curvature parameters and imaging data for precise interventional device placement.

Opposing paddles with aligned apertures expand thin breast tissue, preventing imaging plate damage and reducing excisional biopsy needs.

Deposition device transports extracted tissue sample into x-ray radiation field for immediate 3D slice image reconstruction.

Segmented rigid interlocking structures allow a flexible needle to navigate non-linear paths through bone, reducing multiple punctures and stem cell dilution.

A beam disperser with angled faces distributes laser energy globally around the longitudinal axis of a fiber optic probe.

A flexible catheter design maintains precise cannula tip placement during chorionic villus sampling procedures.

Non-periodic patterns on surgical tools replace intrusive mechanical trackers, resolving the trade-off between high navigation accuracy and system complexity.

A tissue collection device integrates a snare wire loop and basket wire loop within a main tube to capture specimens in one operation.

A modified Wheatstone bridge compensates for sensor response variations to ensure consistent positioning accuracy during minimally invasive procedures.

Nanosecond pulsed electric fields induce electroporation in myocardial tissue to create precise ablation lesions.

Austenitic stainless steel eyeless sewing needle uses localized heating to create a granular crystalline structure at the axial hole base.

Microwave detectors measure absorbed signals to control therapeutic energy delivery, eliminating foreign body material and minimizing collateral damage.

A cannula fixation plaster uses a receptacle to absorb tensile forces and transfer them to the adhesive surface.

Nested cannulae with a semi-solid seal reduce instrument exchanges, minimizing tissue trauma and procedural time.

A single biopsy needle uses dual lumens to collect tissue samples and deploy markers during one insertion.

Radiopaque markers on a self-expanding framing member localize the interatrial septum, resolving localization accuracy issues during transseptal puncture.

A water jet surgical instrument adjusts fluid jet expansion angle and discharge energy via a dynamic beam shaping device.

A deployable marker resolves the contradiction between treatment precision and cell detectability by providing a persistent reference for imaging assessment.

A flexible filament element guides cerebrospinal fluid into a collection tube, preventing missed droplets and reducing procedure duration.

Silicone gel composition prevents residue formation under stress while maintaining strong skin adhesion.

A helical radiofrequency needle creates larger lesions in a single insertion.

Pre-formed bends and a hinge element urge the cutting window against vessel walls, resisting deflection forces during atherectomy procedures.

A subcutaneous sensor inserter assembly enables reliable implantation of electrochemical glucose monitors.

Expandable balloon deployed through a trocar into the abdominal cavity to apply pressure and control bleeding.

A nasogastric tube insertion system uses a curved inserter element and a swallowable weight guide to direct the tube through nasal passages.

Segmented sharp and dull punches with pulsed vacuum dissection reduce transection rates while maintaining harvesting efficiency.

An internal RF electrode with a dielectric cannula shaft minimizes mechanical damage while achieving deeper fat contouring.

A medical needle features a rounded tip with progressive inclination angles to minimize tissue damage during insertion.

Optical tracking monitors needle position to provide spatial feedback when the probe is out of the ultrasound image plane.

A puncture device creates a pericardial channel using controlled energy delivery.

A radio-frequency ablation system uses an electronic switch to sequentially connect multiple monopolar probes, enabling independent power control.

A depth stop assembly with a locking mechanism stabilizes the biopsy targeting cannula, resolving alignment issues during MRI-guided procedures.