Cushing Suture is a continuous, easy inverting suture pattern which is fast to make. It is used for making the external closure when suturing an intestinal incision. Bites are placed parallel to the incision site. The Cushing suture pattern does not penetrate the lumen, it only penetrates the serosa, muscularis and submucosa.
Connel Suture is similar to the Cushing Suture. The main difference is that the Connel suture penetrates the lumen.
Watch the video for a visual of this comparison.