Incision Instruments TRIZ Cases

Displacement and force sensors on a surgical saw blade detect bone exit and depth, eliminating manual estimation errors.

A surgical knife safety handle features a sliding guard and user operable lock to shield the blade.

A plane finder probe establishes a cutting plane for a slotted cannula to guide surgical instruments during endoscopic release procedures.

A reload assembly spring clip locks the knife carrier in a retracted position using a locking tang and engagement portion.

An integrated surface coating merges an interference filter into the substrate to prevent unintended reuse by altering color upon corrosive exposure.

Integrated disposable morcellator with pistol grip and alkaline battery powers a toothed wheel mechanism to eliminate sterilization labor costs.

A scalpet array creates discrete skin plugs for fractional resection and graft harvesting.

Segmenting the surgical fastener into disposable and reusable parts resolves sterilization complexity while reducing device costs.

A curved blade debridement device removes dead tissue from wounds while protecting live tissue.

A scalpel handle integrates a pivotally mounted blade shield with a finger-operable actuator mechanism for rapid position changes.

Nested safety needle, blade, and obturator assemblies create a precise skin nick and expand the insertion pathway for chest tube placement.

Therapeutic punch features asymmetric cutting regions that redistribute skin elastic forces to facilitate flat wound closure.

Forceps needles inject contrast agent to map pulmonary vessels, enabling precise resection margins that preserve lung reserve in COPD patients.

Axial and circumferential electrical contacts deliver current to a rotatable end effector, resolving contact stability issues during tissue resection.

An integrated instrument merges forceps and scalpel functions into one unit, reducing procedure time and minimizing risk of nerve damage during dissection.

Integrating a sensor into the surgical light head detects items via RFID tags, resolving post-surgical infection risks from retained objects.

A surgical stapling instrument uses dynamic motor braking to resist undesired end effector movement outside a predetermined acceptable range.

Segmenting the blade into a protected sleeve and guided handle resolves injury risks while ensuring accurate tissue healing.

A knife drive rod engages a shortened blade within jaw members to enable precise tissue cutting in surgical instruments.

Retractable blades perforate the transverse carpal ligament to relieve median nerve pressure while preserving wrist structural integrity.

Segmented channels prevent instrument interference while orientation markers eliminate hand-specific confusion in carpal tunnel surgery.

Rotating tunneler creates precise subcutaneous pockets, reducing insertion forces and preventing device displacement during implantation.

A combined medical device integrates a rigid trocar and flexible cannula within a protective tube.

A pixel array dermatome fractionally resects skin and fat using a scalpet array with depth control.

Segmented pathway creation via safety needle and dynamic obturator expands tissue channels while preventing over-penetration complications.

Nested palpation and incision tools within a tubular member locate the affected pulley, enabling accurate release while minimizing tissue damage.

A trocar blade assembly creates a controlled skin nick during chest tube insertion.

Deep placement near the fascial layer reduces foreign body responses and infection risk while maintaining consistent sensor performance.

A catheter connector uses a hinged clamp to secure the device distal end within an abscess cavity for stable fluid drainage.

A minimally invasive ultrasonic system disrupts fibrous septa through acoustic cavitation and mechanical fatigue to realign subcutaneous tissue.

A one-piece optical scalpel integrates the light guide and cutting tip into a single structure.

A planar surgical template guides marker placement along a rhomboid opening to define precise excision and incision lines on patient skin.

Segmented knife head with a transverse joint reduces perforation risk by allowing dynamic angle adjustment during endoscopic submucosal dissection.

A retractable blade electrode generates cold plasma discharge when retracted and performs mechanical cutting when extended within a single electrosurgical housing.

A Pixel Array Dermatome system uses fractional resection to harvest skin grafts via a scalpet array.

Digital surface projection replaces manual marking to resolve the contradiction between adaptability and precision in surgical planning.

A flexible containment bag with a collapsible support ring enables safe tissue extraction through small incisions.

Segmenting the cutting function into a guided blade shuttle resolves precision complexity trade-offs for remote incisions.

An ophthalmic vitrectomy probe uses a distal port and rotating inner blade to reduce port-to-tip distance, improving surgical precision near the retina.

A Pixel Array Dermatome scalpet array creates fractional skin plugs via vacuum and rotational force.

Flared lateral recesses in jaw members anchor buttress bodies, reducing application complexity while maintaining staple line reliability.

Segmented jaw peaks and troughs mechanically interlock with tissue fibers, reducing dissection force while minimizing trauma.