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The Endo Stitch device (Covidien, Mansfield, MA) (ssss1) was designed to avoid needle handling during intracorporeal suturing. A double‐pointed needle with centrally swaged suture is passed from one jaw to the other. This device will pass the suture through tissue, as well as through suture loops, to tie knots without the need to reload and reposition the needle. It comes in a 10 mm diameter size only.
A needle must be passed carefully through the instrument cannula to prevent damage to the gaskets within. One way to avoid damage is by the use of an introducer sleeve, a valveless cannula that fits within a regular port cannula but is still wide enough to allow passage of a needle, suture, and other knot‐tying equipment (ssss1). However, in small animals with small cannula sizes, it is often more practical to simply remove the cannula from the body wall, thread it onto the needle driver, grasp the needle and suture, introduce them through the incision, and thereafter replace the cannula into the incision. Suture knots can be tied intracorporeally or extracorporeally. Intracorporeal knot tying using needle holders and graspers requires some practice for a surgeon to become proficient at this skill. The Suture Assistant (Ethicon Endo‐Surgery, Somerville, NJ) is a 5 mm diameter device that deploys pretied suture intracorporeally for simple interrupted suture patterns. Cartridges are available with different sizes and types of suture most commonly used for soft tissue closure. After the suture is loaded onto the Suture Assistant, it is passed into the body cavity. The needle is driven through the tissues with needle holders and then is passed through a pretied loop at the end of the device. Deployment of the device produces a secure intracorporeal knot.