Surgery TRIZ Cases

A unicondylar tibial implant uses a porous surface coating to maximize frictional forces for immediate mechanical stability.

Implant surface islands shear bone material to pack pores, accelerating tissue ingrowth and resolving slow integration delays.

Percutaneous scaffolding creates autologous valves, eliminating thrombus risks from synthetic prostheses while restoring reliable venous circulation.

A microfabricated sensor employs a microwave transmission line coupled to a fluid channel to detect dielectric changes in bodily fluids.

An extra-articular spring transfers lateral knee load to the medial compartment, balancing forces without invasive joint replacement.

Segmented blade conduits pump cooling fluid to prevent tissue damage from overheating.

A dual compartment sanitizing chamber houses flexible and rigid medical devices simultaneously using a shared fluid supply system.

Segmenting bone surfaces into zones with varying tolerance requirements improves cementless implant fixation while reducing preparation complexity.

Parallel processing generates tomographic and surface images simultaneously, resolving the trade-off between image completeness and real-time observation time.

Adjustable lockable arms and angulating blades resolve positioning flexibility contradictions in spinal surgery.

Segmented relay portions fix conduit sections to a base plate, resolving connection errors and improving maintenance access during assembly.

Strategic cutouts reduce eccentric mass in the ultrasonic probe head, while distal bend placement compensates for imbalance to suppress transverse vibrations.

A system generates three-dimensional data from endoscopic images to create virtual views.

Segmented fluid suction ports remove lumen fluids to maintain unobstructed vision during procedures.

Radiodense markers and alignment sheets reduce fluoroscopy frequency, lowering radiation exposure during lumbar spine surgery.

An in situ forming media transitions from flowable to non-flowable state around a scaffold, eliminating suture-induced scarring and axonal damage.

Oblique impact body generates radial sonotrode vibration to fragment non-homogeneous stones and prevent jamming.

Segmented absorbent zones migrate fluid to a graduated scale, reducing test duration while maintaining measurement accuracy.

A battery-powered ultrasonic surgical device uses a non-threaded dock to establish an aseptic seal between the power unit and the handle.

An impedance matching network reduces electromagnetic interference between imaging cores, enabling accurate radial imaging in narrow body lumens.

Hermetic housing and thermal insulation protect ultrasonic transducer components from sterilization damage.

A saliva test comment system accumulates usage frequencies to generate standardized feedback for dental risk assessments.

A single rotatable manipulation ring executes focus, zoom, and exposure adjustments via rotation direction and angle detection.

A closed space forming member retains liquid while a pump applies pressurization and depressurization cycles to generate strong flushing flows.

An image diagnostic apparatus retrieves past examination information from a medical image server to automatically set imaging conditions.

A hexapod drive moves a shock wave source in six degrees of freedom, compensating for respiratory displacement to maintain focal volume alignment.

An electronic assembly integrates imaging devices and light sources into a compact body to reduce the medical device profile.

Segmented basket designs intercept dislodged debris during thrombectomy, preventing downstream embolization while maintaining low-profile delivery.

Fluid inflation expands the vaginal canal walls to prevent collapse, enabling unobstructed cervix visualization.

Tapered implant with securement grooves transfers through an articulating feature socket to align precisely with the target site.

Segmented locking rings replace complex latching systems in medical motor handpieces, enabling easy maintenance and reliable angular positioning.

Elongated plates within an expandable member transition from a compact profile to support fusion, reducing vertebral distraction and bone removal.

A retrieval device uses a spiral strand wound around an axial core to form a trawl volume for catching foreign bodies.

A magnetic vascular anastomosis device uses O-shaped and C-shaped rings to assist blood vessel opening.

A pre-attached grasping loop enables precise endoscopic positioning of a fluid collection sponge body.

An operation controller calculates positional relationships between touch pad contact points and a region of interest to dynamically adjust its shape.

Dynamic expansion of a nanofiber structure resolves detachment issues during retrieval while enabling efficient sampling across multiple anatomical sites.

A powered spherical-arc saw blade rotates and pivots to cut through the acetabular cup interface.

Complementary processing unit recovers reflected light components lost by excitation filters to enhance autofluorescence image quality and diagnostic contrast.

A medical apparatus corrects drive force to maintain bending accuracy.

Varying the covering rubber hardness prevents adhesive peeling at rigid portion bonds during high-temperature steam sterilization cycles.

A urine collection kit uses a sterile barrier to protect biological samples during self-administered diagnostic testing.

Magnetic domain tracking determines catheter velocity and position, reducing errors in pressure gradient measurements caused by blockage.

Positioning the largest observation window closest to the air/water nozzle maximizes cleaning impact while maintaining a compact insertion diameter.

An acidic and basic polymer surface layer on a low water content soft contact lens reduces corneal adhesion while maintaining oxygen permeability.

Three contact points on a surgical head orient bone plug tools perpendicularly, resolving graft placement precision issues in arthroscopic procedures.

A sample pin tube uses a reversible closure mechanism to manage liquid and solid fecal samples securely.

Switchable coil sheath proximal end enables independent bending portion control.

Switching amide linkages to esters lowers melt viscosity, enabling thermal processing of bioresorbable polymers.