A diameter of a Regulator device to extract an element contained in a Cavity, which is introduced in conjunction with a flexible sleeve and an Applicator, comprising a strip of flexible material Regulation; and at least a means to regulate the diameter, being the Regulating Strip Be open.The means to regulate the Strip: a Hollow Sheath with a distal end and a proximal End, a fixed to the handles of Traction, at least a thread which passes through the Hollow Sheath, where the distal ends of the at least one thread are fixed to the Open Ends of the Strip adjustment, mien After the thread is fixed to the proximal ends of the pulling System.The Method of use of the diameter of a Regulator device to extract an element contained in a Cavity comprises the following steps: a) to introduce the set (with more Applicator Device Controller) into the Cavity until the Applicator Cup make a First Contact with the e Lemento extract; (b) continue Pushing the whole to be opening the distal ends of the tenObstacles of the Applicator; (c) Once passed the largest section of the element to extract a First Regulation Regulation of pull, and pull the trigger trab u00e1ndolo in a new position; (d) continue to push until the final introduction; (e) to re regulate the Regulating Strip Not until its final measure can be measured, the Measurement of the diameter of the element to remove.To be read on the scale of the system of pulling; (f) The inflating Air Chamber, if the device has a; g) to withdraw the Applicator; and (H) of the Traction Pull handles to extract the element content in the Cavity.Un regulador de diámetro de un dispositivo para extraer un elemento contenido en una cavidad, que se introduce en conjunto con una manga flexible y un aplicador, que comprende: una tira de regulación de material flexible; y al menos un medio para regular dicho diámetro, estando la tira de regulación abierta. El medio para regular dicha tira: una vaina hueca con un extremo distal y un extremo proximal,