Hybrid blunt cannula with puncture needle assembly

Abstract

A hybrid blunt cannula with puncture needle assembly that includes a barrel body having a sidewall, two opposing ends, defining and enclosing a barrel channel, and defining a button translation channel through the sidewall of the barrel body, a hub translatably disposed within the barrel channel, an outer cannula member with one end disposed within the hub and a second end for contacting an individual's skin, defining an eye thereon, an inner needle member of a substantially rigid material disposed within the outer cannula member and having a second inner needle free end that is of a sharp configuration, and having a button translatably coupled to the hub, disposed within the button translation channel, and operably configured to modulate the hub and outer cannular member independent of the inner needle member to cause the inner needle to translate through the second cannular end to puncture the individual's skin.

What is claimed is: 
     
         1 . A hybrid blunt cannula with puncture needle assembly comprising:
 a barrel body having an outer surface, an inner surface opposing the outer surface of the barrel body, defining and enclosing a barrel channel, and defining a button translation channel defined therethrough;   an outer cannula member with a first cannula end, a second cannula end, a cannula length separating the first and second cannula ends, of a slender configuration, defining an eye disposed proximal to the second cannula end, with an inner surface defining and enclosing a needle channel fluidly coupled to the barrel channel;   a hub coupled to first cannula end, the hub defining and enclosing a hub channel fluidly coupled to the barrel channel and the needle channel;   an inner needle member of a substantially rigid material, having a first inner needle end, a second inner needle free end opposite the first inner needle end and of a sharp configuration, and an inner needle member length separating the first inner needle end and the second inner needle free end; and   at least one button coupled to the hub and operably configured to translate within the button translation channel to cause the inner needle to translate through the second cannular end with the eye fluidly coupled to the barrel channel.   
     
     
         2 . The hybrid blunt cannula with puncture needle assembly according to  claim 1 , wherein the at least one button is directly coupled to the hub and operably configured to cause translation of the hub and the outer cannula member to cause the inner needle to translate through the second cannular end. 
     
     
         3 . The hybrid blunt cannula with puncture needle assembly according to  claim 1 , wherein the button is operably configured to have a button translation path with a static position including the second inner needle free end disposed proximal to the second cannula end and within the needle channel and with an insertion position with the second inner needle free end disposed proximal to second cannula end and outside of the needle channel. 
     
     
         4 . The hybrid blunt cannula with puncture needle assembly according to  claim 3 , wherein the button translation path is curvilinear. 
     
     
         5 . The hybrid blunt cannula with puncture needle assembly according to  claim 3 , wherein the button is operably configured to translate the outer cannula member independent of the inner needle to translate the inner needle through the second cannular end. 
     
     
         6 . The hybrid blunt cannula with puncture needle assembly according to  claim 1 , wherein the hub is directly coupled to the outer cannular member. 
     
     
         7 . The hybrid blunt cannula with puncture needle assembly according to  claim 1 , wherein the hub is translatably coupled to the barrel body. 
     
     
         8 . The hybrid blunt cannula with puncture needle assembly according to  claim 1 , wherein the button translation channel is of a curvilinear path. 
     
     
         9 . The hybrid blunt cannula with puncture needle assembly according to  claim 3 , further comprising:
 a stopper member coupled to the second cannula end in a watertight configuration and defining a terminal end of the outer cannula member, wherein the insertion position of the at least one button includes a portion of the inner needle member length spanning through the stopper member.   
     
     
         10 . The hybrid blunt cannula with puncture needle assembly according to  claim 9 , wherein the stopper member is of a butyl rubber material. 
     
     
         11 . The hybrid blunt cannula with puncture needle assembly according to  claim 9 , wherein the stopper member is configured to at least partially protrude past the terminal end of the second cannula end. 
     
     
         12 . A hybrid blunt cannula with puncture needle assembly  800  comprising:
 a barrel body having a sidewall with an outer surface and with an inner surface opposing the outer surface, two opposing ends defining a barrel body length separating the two opposing ends, defining and enclosing a barrel channel spanning the barrel body length, and defining a button translation channel through the sidewall of the barrel body; 
 a hub translatably disposed within the barrel channel and defining a hub channel fluidly coupled to the barrel channel; 
 an outer cannula member with a first cannula end disposed within the hub channel and coupled to the hub, a second cannula end, a cannula length separating the first and second cannula ends, of a slender configuration, defining an eye disposed proximal to the second cannula end, with an inner surface defining and enclosing a needle channel fluidly coupled to the barrel channel and the hub channel; 
 an inner needle member of a substantially rigid material, having a first inner needle end disposed within the barrel channel, a second inner needle free end opposite the first inner needle end, of a sharp configuration, and disposed proximal to second cannular end and within the needle channel, and an inner needle member length separating the first inner needle end and the second inner needle free end; and 
 at least one button translatably coupled to the hub, disposed within the button translation channel, and operably configured to modulate the hub and outer cannular member independent of the inner needle member to cause the inner needle to translate through the second cannular end. 
 
     
     
         13 . The hybrid blunt cannula with puncture needle assembly according to  claim 12 , wherein the hub is disposed proximal to one of the two opposing ends of the barrel body. 
     
     
         14 . The hybrid blunt cannula with puncture needle assembly according to  claim 12 , wherein the button is operably configured to have a button translation path with a static position including the second inner needle free end disposed proximal to the second cannula end and within the needle channel and with an insertion position with the second inner needle free end disposed proximal to second cannula end and outside of the needle channel. 
     
     
         15 . The hybrid blunt cannula with puncture needle assembly according to  claim 12 , wherein the button translation path is curvilinear. 
     
     
         16 . The hybrid blunt cannula with puncture needle assembly according to  claim 12 , further comprising:
 a stopper member coupled to the second cannula end in a watertight configuration and defining a terminal end of the outer cannula member, wherein the insertion position of the at least one button includes a portion of the inner needle member length spanning through the stopper member.   
     
     
         17 . The hybrid blunt cannula with puncture needle assembly according to  claim 16 , wherein the stopper member is configured to at least partially protrude past the terminal end of the second cannula end.