Drug coating apparatus

摘要

A drug coating apparatus (100) for coating an implant (206) with a drug is described. The drug coating apparatus (100) includes a holding unit (102) having a top collet (202-1) for holding the implant (206) from a top end of the implant (206), and a bottom collet (202-2) to hold the implant (206) from a bottom end of the implant (206). The drug coating apparatus (100) includes at least one rotary drive (115) coupled to the holding unit (102) for rotating the top collet (202-1), the bottom collet (202-2) and the implant (206), and includes a spraying unit (104) to spray-coat the drug on the implant (206).

主权项

1. An apparatus for coating an implant with a drug, the apparatus comprising:
a detachable holding unit comprising:
a thin spring wire;locators coupled to one of the collets attached through a coupling to the holding unit;a top collet for holding the implant from a top end of the implant; anda bottom collet for holding the implant from a bottom end of the implant;at least one rotary drive coupled to the holding unit to the holding unit for rotating the top collet a bottom collet and the implant in conjunction with each other;a spraying unit to spray-coat the drug on the implant, wherein the spraying unit comprises a spray gun through which the drug is spray coated on the implant; anda swinging mechanism coupled to the spray gun to swing the spray gun along a longitudinal axis of the implant for coating the drug, wherein the swinging mechanism comprises:
a stepper motor;a cam shaft coupled eccentrically to the stepper motor, wherein the cam shaft is rotated eccentrically by the stepper motor; anda swing rod coupled eccentrically to the cam shaft and coupled to the spray gun, wherein eccentric rotation of the cam shaft swings the swing rod and the spray gun.