Patent ID: 6210374
Filing Date: 2001-04-03
Classification: A61M

Abstract:
A needle protective sheath device comprising:a first cylindrical member having a first cylindrical cavity defining a longitudinal axis, said member having proximal and distal ends, said member having first and second openings on and extending radially transverse the axis in communication with the cavity on the respective distal and proximal ends, the second opening on the proximal end being restricted in transverse dimension with respect to the first opening on the distal end, the member including needle receiving means at the proximal end opening for securing a needle thereto in communication with the cavity, the secured needle for extending axially beyond the first member proximal end, the member including finger gripping means on the distal end;first locking means on the first cylindrical member outer surface external the cavity on at least one of two opposing member sides adjacent to said proximal end;second locking means on the first member outer surface external the cavity adjacent to the proximal end spaced from said first locking means between said first locking means and the distal end forming an axially extending locking recess with said first locking means on the at least one of two opposing sides, said second locking means having a first quiescent locking position forming the recess and a second release position;a second cylindrical member having a second cylindrical cavity defining a second longitudinal axis, said second member having proximal and distal ends, said second member having third and fourth openings on and extending radially transverse the second axis in communication with the second cavity at the respective distal and proximal ends, the fourth opening on the proximal end being restricted in transverse dimension with respect to the third opening on the distal end, said second cavity for axially receiving the first member through the third opening with the first and second members in nested concentric relation in a first axial relative position with the members overlying one another with their respective proximal and distal ends adjacent to each other and in a second axially extended position wherein the second member distal end is adjacent to the first member proximal end so the second member proximal end extends beyond the first member for protecting the extended needle; andthird locking means on the second member at the second member distal end for selectively engaging and locking to the first and second locking means in said locking recess in said second extended position, the second locking means being disengaged from the third locking means in the release position for placing the first and second members in the first axial position.