초록

A method of separating tissue layers using an inflatable balloon, in which endoscopic visualization may be carried out through the balloon during inflation.

대표청구항 ▼

[ We claim:] [1.] A method of separating a first layer of tissue from a second layer of tissue to create an anatomic operating space therebetween at a site of surgery, the second layer of tissue overlaying the first layer of tissue along a plane, the method comprising steps of:providing a retractor

[ We claim:] [1.] A method of separating a first layer of tissue from a second layer of tissue to create an anatomic operating space therebetween at a site of surgery, the second layer of tissue overlaying the first layer of tissue along a plane, the method comprising steps of:providing a retractor including a balloon having an interior, and an elongate passage communicating with the interior of the balloon;providing an endoscope having a distal end;making a laparoscopic incision through only the second layer of tissue;introducing the retractor into the laparoscopic incision with the balloon in a deflated state;passing the endoscope through the elongate passage to locate the distal end of the endoscope in the interior of the balloon;inflating the balloon to cause separation of the first layer of tissue and the second layer of tissue from one another, thereby producing the anatomic operating space; andusing the endoscope to provide observation through the balloon when the balloon is less than fully inflated.