Pen needle and safety shield system
First Claim
1. A safety shield system for use with a body having fluid disposed therein, the safety shield system including:
- a hub member adapted to receive the body;
a needle cannula mounted to the hub member and having a first end and a second end;
a clip member attached to the hub member and having a lateral projection;
a shield having an open end received around the clip member and a generally closed end having a central opening therethrough receiving the second end of the needle cannula, the shield being moveably mounted with respect to the hub member between a first position surrounding the needle cannula and a second position exposing the needle cannula, the shield including at least one opening for receiving the lateral projection when the shield is first retracted to the second position to expose the needle cannula and then extended to the first position surrounding the needle cannula such that the lateral projection locks the shield in the first position to prevent subsequent movement of the shield from the first position to the second position;
a spring disposed within the shield for biasing the shield toward the first position; and
a cap having a closed end and having means for non-removably securing the cap over the open end of the shield following use of the safety shield system to prevent re-use thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
A safety shield system for a needle cannula of a pen needle injector or similar device, wherein a safety shield may be retracted from a first position enclosing the needle cannula to a second position exposing the needle cannula for injection. The safety shield system permits retraction of the safety shield during use, but extends the shield enclosing the needle cannula in a locked position following use. The shield system is utilized with a pen needle injector having a double-ended needle cannula mounted in a hub member received on an open end of the pen needle injector. The assembly is disposed of by removing the system and storing the assembly in the cup-shaped top cap enclosing the exposed end of the needle cannula within the cap. The top cap includes internal radial ribs preventing retraction of the shield prior to removing the top cap preventing inadvertently piercing the top cap during assembly. In addition, a bottom cap may be interlocked to the top cap to completely encompass the needle cannula, thereby ensuring safe disposal of the assembly.
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Citations
28 Claims
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1. A safety shield system for use with a body having fluid disposed therein, the safety shield system including:
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a hub member adapted to receive the body;
a needle cannula mounted to the hub member and having a first end and a second end;
a clip member attached to the hub member and having a lateral projection;
a shield having an open end received around the clip member and a generally closed end having a central opening therethrough receiving the second end of the needle cannula, the shield being moveably mounted with respect to the hub member between a first position surrounding the needle cannula and a second position exposing the needle cannula, the shield including at least one opening for receiving the lateral projection when the shield is first retracted to the second position to expose the needle cannula and then extended to the first position surrounding the needle cannula such that the lateral projection locks the shield in the first position to prevent subsequent movement of the shield from the first position to the second position;
a spring disposed within the shield for biasing the shield toward the first position; and
a cap having a closed end and having means for non-removably securing the cap over the open end of the shield following use of the safety shield system to prevent re-use thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A pen needle and safety shield system for use with a container having fluid disposed therein, the pen needle and safety shield system comprising:
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a pen injector having a body portion for receiving the container;
a hub member removably mounted to the body portion;
a needle cannula mounted to and extending through the hub member having a first end extending into the body portion for fluid communication with the container, and a second end extending away from the body portion for injection and transfer of the fluid from the container to a user;
a clip member mounted to the hub member and having a plurality of spaced resilient lateral projections;
a shield having an open end received around the clip member and a generally closed end having a central opening therethrough receiving the second end of the needle cannula, the shield being moveably mounted with respect to the hub member between a first position surrounding the second end of the needle cannula and a second position exposing the second end of the needle cannula, the shield including a plurality of openings for receiving the lateral projections when the shield is first retracted to the second position to expose the needle cannula and then extended to the first position surrounding the needle cannula such that the lateral projections lock the shield in the first position to prevent subsequent movement of the shield from the first position to the second position;
a spring disposed within the shield for biasing the shield toward the first position; and
a cap having a closed end and having means for non-removably securing the cap over the open end of the shield following use of the pen needle and safety shield system to prevent re-use thereof. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification