Wound Drains TRIZ Cases

A surgical evacuator uses suction, HEPA filtration, and ultraviolet light to remove infectious aerosols during procedures.

Spring-loaded rotor mechanism adjusts hydrocephalus valve pressure via magnetic interaction, preventing unintentional shifts from external fields.

Periodic purging cycles remove accumulated tissue from the porous manifold, preventing pain during removal and reducing replacement frequency.

A smart shunt system dynamically regulates cerebrospinal fluid pressure using embedded sensors and actuators.

Segmented design isolates reusable vacuum components from disposable interfaces, reducing supervision needs while maintaining therapeutic pressure.

An outward cannula portion creates radial spacing to prevent tissue occlusion of fluid inlets during suction.

A reduced-pressure wound dressing uses a water-sensitive barrier to promote re-epithelialization while applying negative pressure.

Parallel inlet lumens enable uniform drainage from distinct edematous regions, avoiding single-point catheter limitations.

A sealant layer and elongate collection chamber form a sealed enclosure around surgical incisions to distribute negative pressure evenly.

Segmented base and flexible deck components resolve interference between probe placement and valve protrusions, ensuring accurate detection.

A bi-stable popper membrane valve detects blockages by shifting conformation, enabling non-invasive monitoring of shunt functionality.

A segmented collection bag neck enables direct urine emptying into a commode, preventing spillage and leakage during disposal.

Segmentation of the limiting component enables easy removal by cutting, preventing displacement from intestinal movements.

A wound dressing manifold with variable contraction zones distributes reduced pressure to improve incision closure rates while reducing system complexity.

An eyelet-free catheter design minimizes urethra trauma and prevents clogging by removing side openings that cause turbulence.

A ureteral stent employs a collapsible anchor and pressure-responsive flapper valve to prevent urine reflux and reduce bladder irritation.

A urinary drainage bag uses a self-expanding flow promoting element to create negative pressure for urine evacuation.

A sterile urinary catheter collection bag features a narrow internal channel aligned with the outlet to facilitate easy catheter advancement and retrieval.

A catheter package uses a lid-mounted lifting member to partially extract the device upon opening.

Segmented hub body and knob use dynamic positioning to lock suture wires, preventing accidental catheter withdrawal.

A reconfigurable retention portion transitions from a constrained insertion state to an expanded removal configuration.

A tube fixation device with a ductile layer conforms to the body's surface, preventing kinking and leakage during patient movement.

An electrolytic sensor in a smart urinary catheter detects fluid flow to track usage history and improve patient compliance.

A helical tip penetrates the sigmoid sinus wall to drain cerebrospinal fluid through an endovascular shunt.

Porous tubes release local analgesics to eliminate systemic side effects while flexible regions dampen mechanical friction.

Segmented material layers and embedded strands vary stiffness along the ureteral stent length, reducing tissue irritation during natural ureter movements.

Segmented catheter design with adjustable valve reduces blockage rates and infection risks in pediatric shunt systems.

A tensioner system adjusts an articulating neck to change catheter rigidity, eliminating the need for multiple devices when navigating complex vascular paths.

Composite shunt tube with nitinol anchors prevents migration while a passive valve stops cerebrospinal fluid reflux, relieving intracranial pressure.

Integrated valves in the coupling unit prevent dripping when disconnected, eliminating manual clamping steps.

Extraction of vacuum tubes from beneath wound covers prevents adhesive cracking and maintains air-tight seal integrity.

Segmented catheters with repositionable balloons reduce localized urethral trauma and irritation during long-term incontinence management.

A collapsible sheath houses an intermittent catheter tube with an integrated lubricant chamber to deliver fluid directly during insertion.

Injection molding an elastomeric coupling body onto the conduit merges components to simplify manufacturing while maintaining reliable fluid delivery.

A compactable protective sleeve arrangement with releasably connected proximal and distal holder parts enables intuitive expansion for intermittent urinary catheters.

Segmented multi-conduit drain reduces skin incision size and infection risk by enabling lateral fluid extraction from deep wounds.

A compressible pump with a visual indicator exposes when fully uncompressed to signal pressure levels.

Detachable foam pad sections adapt to irregular wound shapes, resolving the trade-off between dressing complexity and anatomical fit.

A reusable urinary catheter case stores the device in hydration fluid that activates a hydrophilic coating for lubrication and sterility.

Expandable member tongues abut the urinary sphincter to provide tactile feedback, preventing upward migration without imaging.

A deformable chamber manages fluid flow from wound sites using a piezoelectric pump mechanism.

Sliding tubular bodies in a surgical drainage device reduce extraction force, preventing bile duct injury during removal.

Optical fibers transmit UV light inside the catheter lumen to inactivate bacteria while shielding external tissues from harmful radiation.

A coaxial medical drainage kit uses a sliding fluid collection body secured by a locking device to prevent tissue adhesion.

A urinary catheter with an inflow member deployed in the renal pelvis draws fluid through drainage holes using negative pressure.

Composite fluorinated parylene and polysulfone barrier prevents saline corrosion while maintaining coercivity in medical implants.

A chest drainage tube features a relief lumen valve that opens at specific pressure differentials to regulate fluid flow.

Auxiliary powered negative pressure wound therapy apparatus maintains continuous therapy without AC power reliance.