Patent ID: 6657545
Filing Date: 2003-12-02
Classification: A61M

Abstract:
An automatic detecting and prewarning system for medicine instiller, said medicine instiller normally including a medicine liquid container for containing an amount of medicine liquid, a transparent flow-indicating cylinder, a tube, a flow controller, and a syringe, comprising a clamp, detecting means provided on said clamp, alarm means connected to said detecting means, and drop-carrier swaying means;said clamp being adapted to clamp on an outer surface of said flow-indicating cylinder of said medicine instiller without compressing or deforming said flow-indicating cylinder, and two cavities being correspondingly provided on two opposite jaws of said clamp; said detecting means including an emitter and a receiver that are separately received in said two cavities on said clamp, such that said emitter and said receiver are spaced by said flow-indicating cylinder to face each other when said clamp is clamped onto said flow-indicating cylinder at a predetermined height; said alarm means being connected to said detecting means via a conductor to receive signals sent by said detecting means, said alarm means including internal electronic control circuits to provide detecting and setting functions; and said drop-carrier swaying means being disposed inside said flow-indicating cylinder below a medicine dropper centered at and downward extended from an upper cap of said flow-indicating cylinder, and including a lever structure and a drop carrier pivotally and eccentrically connected to a lower end of said lever structure; and said drop carrier being adapted to sway about said lever structure and tilt toward a radially larger side when a medicine drop falls from said medicine dropper to impact on said radially larger side of said drop carrier; whereby when said clamp is clamped on said flow-indicating cylinder and said medicine instiller is set via said flow controller to instill a medicine liquid at a fixed number of drops per minute, said drop carrier is intermittently impacted by fallen medicine drops to sway and tilt reciprocatingly at a fixed frequency, bringing said radially larger side of said drop carrier to intermittently move into a path between said emitter and said receiver to cut off said detecting means on said clamp, said electronic control circuits inside said alarm means being adapted to detect said intermittently cut off detecting means and set a standard number of drops or flow per minute for said specific medicine instilling operation, and said alarm means being automatically enabled when an abnormal number of drops or flow per minute has continued for a preset time value.