Blunted Safety Needle

Abstract

A blunted safety needle is provided, which includes a hollow needle having a sharp distal tip and a stylus having a blunted end. The stylus is positioned within at least a portion of the needle. After the needle is used to deliver or deploy a substance and/or a device, the blunted end of the stylus is positioned to extend through the sharp distal tip of the needle and un-releaseably lock into position, thereby providing a blunted safety needle assembly.

1 . A safety needle assembly comprising:
 a needle including a shaft having a sharp open distal end and an open proximal end, the proximal end having a needle hub thereon, the needle hub having an opening therethrough which is continuous with an opening provided through the shaft of the needle, the needle hub including at least one movable stop positioned thereon; and   a stylus, the stylus having a shaft including a blunt distal end and a proximal end having a stylus hub thereon, the hub includes an edge thereon;   wherein when the stylus is positioned inside of the needle, the blunt distal end of the stylus extends a distance toward the open distal end of the needle, the stylus is held in a position preventing movement toward the distal end of the needle by a position of the movable stop against the edge, and wherein when the movable stop is moved away from the edge of the stylus, the blunt distal end of the stylus is movable to extend through and beyond the sharp open distal end of the needle thereby rendering the safety needle assembly in a blunted condition, the stylus configured to non-releasably couple to the needle to provide an unmovable position of the stylus with respect to the needle.   
   
   
       2 . The safety needle assembly of  claim 1  wherein the needle hub includes a handle having the stop positioned thereon. 
   
   
       3 . The safety needle assembly of  claim 2 , wherein the handle is movable to move the stop away from the stylus hub so that the stylus is movable toward the distal end of the needle. 
   
   
       4 . The safety needle assembly of  claim 2 , wherein the handle breaks away from the needle hub. 
   
   
       5 . The safety needle assembly of  claim 1 , wherein the needle hub includes at least one recess. 
   
   
       6 . The safety needle assembly of  claim 5 , wherein the stylus hub includes a retainer. 
   
   
       7 . The safety needle assembly of  claim 6 , wherein the retainer includes a clip. 
   
   
       8 . The safety needle assembly of  claim 7 , wherein the clip of the retainer is positioned into the one recess of the needle hub to assist the stop in holding the stylus in a non-deployed position. 
   
   
       9 . The safety needle assembly of  claim 8 , wherein when the movable stop is moved away from the portion of the stylus, the blunt distal end of the stylus is movable to extend through and beyond the sharp open distal end of the needle and the retainer is moved such that the clip of the retainer is positioned into another recess of the needle hub, and the stylus extends through and beyond the distal end of the needle in a deployed position and to render the stylus in an unmoveable position such that the needle assembly is maintained in a safe blunted condition. 
   
   
       10 . A safety needle assembly comprising:
 a needle including a shaft having a sharp open distal end and an open proximal end, the proximal end having a needle hub thereon, the needle hub having an opening therethrough which is continuous with an opening provided through the shaft of the needle, the hub including at least one recess; and   a stylus, the stylus having a shaft including a blunt distal end and a proximal end having a stylus hub thereon, the hub includes a retainer;   wherein the stylus is held in a first position when the stylus is positioned inside of the needle, the blunt distal end of the stylus extends a distance toward the open distal end of the needle but is retained within the shaft of the needle by a portion of the retainer held in one recess in the needle hub, and wherein when the hub of the stylus is pushed to move the blunt distal end of the stylus within the shaft of the needle, the stylus moves within the shaft until the blunt distal end extends beyond the sharp distal end of the needle and the portion of the retainer is positioned in another recess in the needle hub, thereby rendering the safety needle assembly in a blunted condition, the stylus configured to non-releasably couple to the needle to provide an unmovable position of the stylus with respect to the needle to maintain the blunted condition.   
   
   
       11 . The safety needle assembly of  claim 10 , wherein the needle hub includes a handling having the least one movable stop positioned thereon. 
   
   
       12 . The safety needle assembly of  claim 11 , wherein the stylus includes an edge. 
   
   
       13 . The safety needle assembly of  claim 12 , wherein when the stop on the handle is positioned against the edge of the stylus, the stylus is held in a position preventing movement toward the distal end of the needle. 
   
   
       14 . The safety needle assembly of  claim 13 , wherein when the handle is moved such that the stop is moved away from the edge of the stylus, the blunt distal end of the stylus is movable to extend through and beyond the sharp open distal end of the needle thereby rendering the safety needle assembly in a blunted condition. 
   
   
       15 . The safety needle assembly of  claim 11 , wherein the handle breaks away from the needle hub. 
   
   
       16 . The safety needle assembly of  claim 10 , wherein the portion of the retainer includes a clip. 
   
   
       17 . The safety needle assembly of  claim 16 , wherein the clip of the retainer is positioned into the one recess of the needle hub to assist the stop in holding the stylus in a non-deployed position. 
   
   
       18 . The safety needle assembly of  claim 17 , wherein when the movable stop is moved away from the portion of the stylus, the blunt distal end of the stylus is movable to extend through and beyond the sharp open distal end of the needle and the retainer is moved such that the clip of the retainer is positioned into another recess of the needle hub, and the stylus extends through and beyond the distal end of the needle in a deployed position and to render the stylus in an unmoveable position such that the needle assembly is maintained in a safe blunted condition. 
   
   
       19 . A safety needle assembly comprising:
 a needle including a shaft having a sharp open distal end and an open proximal end, the proximal end having a needle hub thereon, the needle hub having an opening therethrough which is continuous with an opening provided through the shaft of the needle, the needle hub including at least one movable stop positioned thereon and the needle hub including at least one recess therein; and   a stylus, the stylus having a shaft including a blunt distal end and a proximal end having a stylus hub thereon, the hub has an edge and a retainer;   wherein the stylus is held in a first position when the stylus is positioned inside of the needle, the blunt distal end of the stylus extends a distance toward the open distal end of the needle but is retained within the shaft of the needle by a portion of the retainer held in one recess in the needle hub, and by a position of the movable stop against the edge, and   wherein when the movable stop is moved away from the edge, the blunt distal end of the stylus is movable to extend through and beyond the sharp open distal end of the needle and the portion of the retainer is positioned in another recess in the needle hub, thereby rendering the safety needle assembly in a blunted condition, the stylus configured to non-releasably couple to the needle to provide an unmovable position of the stylus with respect to the needle to maintain the blunted condition.   
   
   
       20 . The safety needle assembly of  claim 19 , wherein the needle hub includes a handle having the stop positioned thereon. 
   
   
       21 . The safety needle assembly of  claim 20 , wherein the handle is movable to move the stop away from the stylus hub so that the stylus is movable toward the distal end of the needle. 
   
   
       22 . The safety needle assembly of  claim 20 , wherein the handle breaks away from the needle hub. 
   
   
       23 . The safety needle assembly of  claim 18 , wherein the portion of the retainer includes a clip. 
   
   
       24 . The safety needle assembly of  claim 23 , wherein the clip of the retainer is positioned into the one recess of the needle hub to assist the stop in holding the stylus in a non-deployed position. 
   
   
       25 . The safety needle assembly of  claim 24 , wherein when the movable stop is moved away from the portion of the stylus, the blunt distal end of the stylus is movable to extend through and beyond the sharp open distal end of the needle and the retainer is moved such that the clip of the retainer is positioned into another recess of the needle hub, and the stylus extends through and beyond the distal end of the needle in a deployed position and to render the stylus in an unmoveable position such that the needle assembly is maintained in a safe blunted condition.