Flip top piercing tip cap

Abstract

A medicament-disposing container includes a bottle having a large diameter for storage of a medicament and an initially sealed narrow nozzle. A cap is threadably engaged on the nozzle and includes a piercer for penetrating a nozzle upon rotation of a cap on the nozzle. The piercer as a tapered end and a lumen therethrough including communication with a port in a piercer circumference. Upon penetration of the nozzle, the port is disposed proximate an internal surface of the nozzle in order to provide a restricted passage for throttling medicament therepast in order to enable dropwise dispensing of the medicament through the piercer lumen.

What is claimed is:  
     
         1 . A medicament dispensing container comprising: 
 a bottle having a large diameter for storage of medicament and an initially sealed narrow nozzle tip;    a cap for threadably engaging the nozzle, said cap having a flat top;    a piercer, having a lumen extending through said cap, for penetrating the nozzle upon closing rotation of said cap on the nozzle, said piercer a portion protruding from said flat top for enhancing droplet formation and preventing contamination of said flat top with medicament during dispensing thereof and a depending portion extending into the nozzle tip;    a port, disposed in said piercer proximate an internal surface of the nozzle tip;    a passageway, defined between the internal surface and the depending portion for throttling medicament therepast in order to enable dropwise dispensing of said medicament through the piercer lumen; and    a flip top stopper for sealing the piercer lumen.    
     
     
         2 . The container according to  claim 1  wherein said passageway narrows in a direction of medicament flow toward said port.  
     
     
         3 . The container according to  claim 2  wherein the piercer lumen, port and passageway are sized for producing dropwise dispensing of the medicament, the medicament having a viscosity of between about 1 cps and about 1000 cps.  
     
     
         4 . The container according to  claim 3  wherein the piercer depending portion extends into the nozzle tip a distance of about 0.15 inches.  
     
     
         5 . The container according to  claim 4  wherein the piercer lumen has a diameter of about 0.05 inches, the port has a diameter of less than about 0.050 inches and the passageway tapers from about 0.40 inches to about 0.30 inches.  
     
     
         6 . The container according to  claim 2  wherein a nozzle tip end has a diameter smaller than bottle diameter for providing a mechanical advantage upon threaded engagement with said cup to insure sealing between the nozzle tip end and an area surrounding the piercer.  
     
     
         7 . The container according to  claim 6  wherein said piercer includes a portion protruding from the cap flat top for enhancer droplet separation from the cap flat top.