Medical device with needle assembly shielding

Abstract

With the present invention, needle safety shielding is provided for medical devices, such as blood collection sets. In a broadest sense, the invention is a medical device which includes a first needle cannula mounted to a first needle hub; a second needle cannula; tubing having a first lumen for establishing fluid communication between the first and second needle cannulas; an actuatable shield movable relatively to the first needle cannula upon actuation from an initial first position where the first needle cannula is at least partially exposed to a second position where a sharp distal end of the first needle cannula is protected or at least partially encapsulated by the shield; and, an actuator for actuating the shield which is engageable at a location spaced from the first needle cannula and the first needle hub.

1 . A medical device comprising: 
 a first needle cannula having proximal and distal ends, at least said distal end being sharp for insertion into a patient;    a first needle hub, said first needle cannula being mounted to said first needle hub;    a second needle cannula;    tubing having at least a first lumen for establishing fluid communication between said first needle cannula and said second needle cannula;    an actuatable shield for selectively at least partially encapsulating said distal end of said first needle cannula, said shield being movable relatively to said first needle cannula upon actuation from an initial first position wherein said first needle cannula is at least partially exposed to a second position wherein at least said distal end of said first needle cannula is at least partially encapsulated by said shield;    at least one wing attached to a portion of said medical device; and    an actuator for actuating said shield, said actuator being engageable at a location spaced from said first needle cannula and said first needle hub to cause actuation of said shield;    
   
   
       2 . A device as in  claim 1 , wherein said actuator includes an actuation trigger of said shield and a movable rod, wherein, upon a predetermined extent of movement of said rod, said rod engages said actuation trigger and causes actuation of said shield.  
   
   
       3 . A device as in  claim 2 , wherein a proximal end of said rod is located to engage a septum into which said second needle cannula is inserted, said engagement causing said rod to at least traverse said predetermined extent of movement to cause actuation of said shield.  
   
   
       4 . A device as in  claim 2 , wherein said actuator includes a button fixed relative to said rod, movement of said button causing movement of said rod.  
   
   
       5 . A device as in  claim 1 , wherein said portion of said medical device to which said wing is attached is said shield.  
   
   
       6 . A device as in  claim 1 , wherein said portion of said medical device to which said wing is attached is said first needle hub.  
   
   
       7 . A device as in  claim 1  further comprising a needle holder, said second needle cannula being mounted to said needle holder.  
   
   
       8 . A device as in  claim 1 , wherein said actuator being engageable at a location closer to said second needle cannula than said first needle cannula.  
   
   
       9 . A medical device comprising: 
 a first needle cannula having proximal and distal ends, at least said distal end being sharp for insertion into a patient;    a first needle hub, said first needle cannula being mounted to said first needle hub;    a second needle cannula;    a first lumen for establishing fluid communication between said first needle cannula and said second needle cannula;    an actuatable shield for selectively at least partially encapsulating said distal end of said first needle cannula, said shield being movable relatively to said first needle cannula upon actuation from an initial first position wherein said first needle cannula is at least partially exposed to a second position wherein at least said distal end of said first needle cannula is at least partially encapsulated by said shield;    an actuation trigger of said shield; and,    a movable rod, wherein, upon a predetermined extent of movement of said rod, said rod engages said actuation trigger and causes actuation of said shield.    
   
   
       10 . A device as in  claim 9 , wherein a proximal end of said rod is located to engage a septum into which said second needle cannula is inserted, said engagement causing said rod to at least traverse said predetermined extent of movement to cause actuation of said shield.  
   
   
       11 . A device as in  claim 9  further comprising a button fixed relative to said rod, movement of said button causing movement of said rod.  
   
   
       12 . A device as in  claim 9  further comprising a second lumen in communication with said actuation trigger, said rod being at least partially disposed in said second lumen.  
   
   
       13 . A device as in  claim 12 , wherein said first and second lumens are formed in a common tubing.  
   
   
       14 . A device as in  claim 12 , wherein said first and second lumens are formed in separate tubes.  
   
   
       15 . A device as in  claim 9 , further comprising a needle holder, said second needle cannula being mounted to said needle holder.