US5169392A — Combined syringe and needle shield and method of …

Claim 1

Independent Claim 194 words

A needle shielding device for use with a barrel having a proximal and distal ends, wherein a needle may be attached to the distal end of the barrel, the improvement comprising: shield retaining means operatively mountable on the barrel and including at least one locking member thereon, an elongated needle shield longitudinally movable over the barrel and said retaining means between a retracted position wherein the needle is exposed and an extended position wherein said shield protects the needle, said shield including at least one elongated key on its interior surface, said key being slidable in a path outside said locking member and being rotatable into operative contact with said locking member when said shield is in said extended position, and wherein said shield includes a movement limiting means to limit the movement of said shield between said retracted and extended positions thereon and wherein said movement limiting means is movable between a first position wherein a first portion of said movement limiting means is adjacent said interior surface of said shield and a second position wherein said first portion of said movement limiting means extends inwardly from said interior surface of said shield.

Claim 2

Dependent Claim 194 words

A needle shielding device for use with a barrel having a proximal and distal ends, wherein a needle may be attached to the distal end of the barrel, the improvement comprising: shield retaining means operatively mountable on the barrel and including at least one locking member thereon, an elongated needle shield longitudinally movable over the barrel and said retaining means between a retracted position wherein the needle is exposed and an extended position wherein said shield protects the needle, said shield including at least one elongated key on its interior surface, said key being slidable in a path outside said locking member and being rotatable into operative contact with said locking member when said shield is in said extended position, and wherein said shield includes a movement limiting means to limit the movement of said shield between said retracted and extended positions thereon and wherein said movement limiting means is movable between a first position wherein a first portion of said movement limiting means is adjacent said interior surface of said shield and a second position wherein said first portion of said movement limiting means extends inwardly from said interior surface of said shield.

Claim 3

Dependent Claim 28 words

The needle shielding device of claim 1 wherein movement of said movement limiting means to said second position is prevented when said shield is in said retracted position.

Claim 4

Dependent Claim 18 words

The needle shielding device of claim 1 wherein said movement limiting means is hingedly connected to said shield.

Claim 5

Dependent Claim 63 words

The needle shielding device of claim 1 wherein said shield is a tubular member and said first portion of said movement limiting means extends substantially across the diameter of said shield to obstruct access to the needle through said distal end of said shield and prevent movement of said shield to said retracted position when said movement limiting is in said second position.

Claim 6

Dependent Claim 36 words

The needle shielding device of claim 1 wherein said movement limiting means includes a second portion which is positioned adjacent said interior surface of said shield when said movement limiting means is in said second position.

Claim 7

Dependent Claim 61 words

The needle shielding device of claim 1 wherein said shield includes an opening therein near said distal end thereof and wherein said first portion is positioned in said opening in said first position of said movement limiting means and a second portion of said movement limiting means is positioned in said opening in said second position of said movement limiting means.

Claim 8

Dependent Claim 36 words

The needle shielding device of claim 1 wherein said movement limiting means contacts said shield retaining means in said second position of said movement limiting means to prevent movement of said shield to said retracted position.

Claim 9

Dependent Claim 35 words

The needle shielding device of claim 7 wherein said movement limiting means engages said locking member on said shield retaining means in said second position to prevent movement of said shield to said retracted position.

Claim 10

Dependent Claim 203 words

In combination, (a) a syringe comprising a barrel having distal and proximal ends, a plunger slidable within the barrel, and a needle attached adjacent to the distal end of the barrel; (b) an elongate needle shield including distal and proximal ends and being movable over said barrel between a retracted position in which said needle is exposed and an extended position in which said needle is protected, said shield including an opening disposed in a sidewall of said shield along a distal portion thereof; and (c) a trigger member substantially covering said opening and being at least partially positioned within said opening, said trigger member attached to said sidewall of said shield by a hinge, said trigger member being pivotally movable about said hinge from a rest position where said trigger member lies flush with said sidewall of said shield and with said opening to an inward position where said trigger member extends into the interior of said shield, said trigger member being shaped so that when said trigger member is in said inward position said trigger member at least partially projects inwardly from said distal portion of said shield to limit access to said needle through said distal end of said shield.

Claim 11

Dependent Claim 203 words

In combination, (a) a syringe comprising a barrel having distal and proximal ends, a plunger slidable within the barrel, and a needle attached adjacent to the distal end of the barrel; (b) an elongate needle shield including distal and proximal ends and being movable over said barrel between a retracted position in which said needle is exposed and an extended position in which said needle is protected, said shield including an opening disposed in a sidewall of said shield along a distal portion thereof; and (c) a trigger member substantially covering said opening and being at least partially positioned within said opening, said trigger member attached to said sidewall of said shield by a hinge, said trigger member being pivotally movable about said hinge from a rest position where said trigger member lies flush with said sidewall of said shield and with said opening to an inward position where said trigger member extends into the interior of said shield, said trigger member being shaped so that when said trigger member is in said inward position said trigger member at least partially projects inwardly from said distal portion of said shield to limit access to said needle through said distal end of said shield.

Claim 12

Dependent Claim 57 words

The combination of claim 9, wherein said shield includes an inwardly directed key longitudinally extending therealong on the inner surface thereof; and a collar attached to said distal end of said barrel wherein said collar includes a keyway thereon for the movement of said key therethrough as said shield is moved between said retracted and extended positions.

Claim 13

Dependent Claim 30 words

The combination of claim 9 wherein a portion of said trigger member lies generally flush with said sidewall of said shield when said trigger member is in said inward position.

Claim 14

Dependent Claim 21 words

The combination of claim 9 wherein said shield includes locking means thereon to retain said trigger member in said inward position.

Claim 15

Dependent Claim 162 words

In combination, (a) a syringe comprising a barrel having distal and proximal ends, a plunger slidable within the barrel, and a needle attached adjacent to the distal end of the barrel (b) a collar operatively associated with said distal end of said barrel and including a key thereon which radially projects outwardly from the outer surface of said collar (c) an elongated needle shield movable over said barrel and said collar between a retracted position in which said needle is exposed and an extended position wherein said shield protects said needle, said shield including a channel disposed along the inner surface thereof which slidably contacts said key member and further includes a locking tab having a locking edge thereon wherein said locking tab is movable between a first position wherein said locking edge is adjacent said inner surface of said shield and a second position wherein said locking edge extends inwardly from said inner surface of said shield to engage said collar.

Claim 16

Dependent Claim 162 words

In combination, (a) a syringe comprising a barrel having distal and proximal ends, a plunger slidable within the barrel, and a needle attached adjacent to the distal end of the barrel (b) a collar operatively associated with said distal end of said barrel and including a key thereon which radially projects outwardly from the outer surface of said collar (c) an elongated needle shield movable over said barrel and said collar between a retracted position in which said needle is exposed and an extended position wherein said shield protects said needle, said shield including a channel disposed along the inner surface thereof which slidably contacts said key member and further includes a locking tab having a locking edge thereon wherein said locking tab is movable between a first position wherein said locking edge is adjacent said inner surface of said shield and a second position wherein said locking edge extends inwardly from said inner surface of said shield to engage said collar.

Claim 17

Dependent Claim 41 words

The combination of claim 13 wherein said channel further includes a positioning means extending therein to selectively engage said key to prevent longitudinal movement of said key in said channel when said locking edge of said locking tab engages said collar.

Claim 18

Dependent Claim 24 words

The combination of claim 13 wherein said locking edge is manually pivotable to said second position when said shield is in said extended position.

Claim 19

Dependent Claim 25 words

The combination of claim 13 wherein movement of said locking edge to said second position is prevented when said shield is in said retracted position.

Claim 20

Dependent Claim 172 words

A needle shielding device for use with a barrel having proximal and distal ends, wherein a needle may be attached to the distal end of the barrel member, the improvement comprising: shield retaining means operatively associated with the barrel and including an outer surface thereon; a tubular needle shield longitudinally movable over the barrel and said shield retaining means between a retracted position wherein the needle is exposed and an extended position wherein the needle is protected by said shield and wherein said shield includes an inner surface and sidewall and distal and proximal portions; movement limiting means on said shield wherein said movement limiting means is movable between a first position wherein a first portion of said movement limiting means is aligned with said sidewall of said shield and a second position wherein said first portion of said movement limiting means extends inwardly from said sidewall of said shield, and wherein movement of said shield to said retracted position is prevented when said movement limiting means is in said second position.

Claim 21

Dependent Claim 172 words

A needle shielding device for use with a barrel having proximal and distal ends, wherein a needle may be attached to the distal end of the barrel member, the improvement comprising: shield retaining means operatively associated with the barrel and including an outer surface thereon; a tubular needle shield longitudinally movable over the barrel and said shield retaining means between a retracted position wherein the needle is exposed and an extended position wherein the needle is protected by said shield and wherein said shield includes an inner surface and sidewall and distal and proximal portions; movement limiting means on said shield wherein said movement limiting means is movable between a first position wherein a first portion of said movement limiting means is aligned with said sidewall of said shield and a second position wherein said first portion of said movement limiting means extends inwardly from said sidewall of said shield, and wherein movement of said shield to said retracted position is prevented when said movement limiting means is in said second position.

Claim 22

Dependent Claim 28 words

The needle shielding device of claim 17 wherein movement of said movement limiting means to said second position is prevented when said shield is in said retracted position.

Claim 23

Dependent Claim 33 words

The needle shielding device of claim 18 wherein said shield includes an opening in the sidewall thereof and said first portion of said movement limiting means obstructs said opening in said first position.

Claim 24

Dependent Claim 19 words

The needle shielding device of claim 19 wherein said opening is positioned along sad distal portion of said shield.

Claim 25

Dependent Claim 19 words

The needle shielding device of claim 19 wherein said opening is positioned along said proximal portion of said shield.

Claim 26

Dependent Claim 31 words

The needle shielding device of claim 19 wherein said movement limiting means includes a second portion thereon which obstructs said opening when said movement limiting means is in said second position.

Claim 27

Dependent Claim 29 words

The needle shielding device of claim 17 wherein said movement limiting means engages a locking means on said shield when said movement limiting means is in said second position.

Claim 28

Dependent Claim 34 words

The needle shielding device of claim 17 wherein said movement limiting means obstructs access to the needle through the distal end of said shield when said movement limiting means is in said second position.

Claim 29

Dependent Claim 31 words

The needle shielding device of claim 17 wherein said movement limiting means contacts said shield retaining means in said second position to prevent movement of said shield to said retracted position.

Claim 30

Dependent Claim 40 words

The needle shielding device of claim 25 wherein said shield retaining means includes a locking means thereon and said locking means engages a locking edge on said movement limiting means when said movement limiting means is in said second position.

Claim 31

Dependent Claim 27 words

The needle shielding device of claim 17 wherein said movement limiting means is pivotally movable to said second position when said shield is in said extended position.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-12-08	1996-06-08	1996-12-08	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-12-08	2000-06-08	2000-12-08	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-12-08	2004-06-08	2004-12-08	$7700.00	Window Closed / Lapsed

Combined syringe and needle shield and method of manufacture

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