Patent ID: 8029527
Filing Date: 2011-10-04
Classification: A61M

Abstract:
1. A disposable/detachable device for connecting to and detaching from a drive module, for local puncturing of skin to apply permanent make-up or a tattoo, comprising: a needle having a stepped surface thereon; a housing having a first end toward a tip of the needle and a second end closer to the drive module, the needle being guided in the housing for movement between extended and retracted positions; a diaphragm made of an elastically extensible material having a central portion of the diaphragm forming a central opening disposed on the stepped surface of the needle, a wall portion extending from the central portion toward the second end of the housing; and a fixing portion formed at an end of the wall portion of the diaphragm; a terminal end part which is attached to the second end of the housing, and wherein the terminal end part holds the fixing portion of the diaphragm in the second end of the housing; and wherein the diaphragm divides a space in the housing into a front-end space toward the first end of the housing and a rear-end space toward the second end of the housing; wherein the stepped surface of the needle contacts and supports a part of the central portion of the diaphragm and the central opening of the diaphragm firmly couples the needle and the diaphragm for backward movement of the needle in the direction of the retracted position.