1 Ghrelin is a fast-acting hormone that plays a vital role in meal initiation and contributes to weight gain. 2  Leptin mediates long-term regulation of energy balance and suppresses food intake, thereby inducing weight loss.  Both hormones can be controlled naturally, primarily though exercise and stress management.
Surgical retractors. A retractor is a surgical instrument with which a surgeon can either actively separate the edges of a surgical incision or wound, or can hold back underlying organs and tissues, so that body parts under the incision may be accessed. The two are each available in many shapes, sizes, and styles.
Introducing the LiVac Retractor. The LiVac Retractor is a single-use soft silicone device which attaches to regulated suction in order to create a vacuum which joins the liver and diaphragm. No extra incisions The tubing passes out alongside existing ports, so no extra incisions are required.