Tri-staple technology

Three Rows of Graduated Staple Heights: Each Tri-Staple™ reload contains three rows of staples, each with a different height. This allows the stapler to accommodate varying tissue thicknesses within a single firing, rather than relying on a single staple height
Stepped Cartridge Face: The cartridge face is designed with steps, creating a graduated compression profile. This means tissue is compressed gently and progressively, rather than all at once, which helps minimize tissue trauma
Graduated Compression: The stepped design delivers less stress on tissue during compression and clamping, reducing the risk of tissue damage and improving staple formation

Medtronic catalogue from 2019: CAT_STAPLING-SOLUTIONS_MEDTRONIC_2019, page 1

Stapling heights

Color	Staple Heights (mm)	Typical Tissue/Application
Gray	2 / 2 / 2	Vascular (very thin tissue)
Tan	2 / 2.5 / 3	Vascular/Medium
Purple	3 / 3.5 / 4	Medium/Thick
Black	4 / 4.5 / 5	Extra-Thick (bariatric/thoracic)

The same cartridges fit on the Signia Stapling system and Endo-GIA stapling system with the Signia being battery powered and End-GIA hand powered.

Endo-GIA
- 3x device/handle lengths - Short, standard and XL
Signia
- The battery and case is re-usable
- 3x device stem lengths - short, standard and XL
Reloads
- Staple length
  - 30mm, 45mm and 60mm staple length
- Staple height
  - Gray, Tan, Purple or Black as above
- Tip
  - Straight or curved
- Reinforced
  - 45mm or 60mm, Purple or black loads
  - Reinforced with buttress material which is an absorbable, porous mesh made from polyglycolide (PGA), commercially known as NEOVEIL™ Reinforcement Staple Line Material

Gastro-intestinal anastomosis (GIA)
Length
- 60mm, 80mm and 100mm (no 100 in tri-staple)
Staple height - Tri-staple series
- As above with new devices
Staple height - DST series (older devices)
- White - 2.5mm (vascular)
- Blue - 3.8mm (medium)
- Green - 4.8mm (thick)