Safety needle accessory
First Claim
1. A safety needle accessory comprising:
- a hub for surrounding a hollow needle having a tip and having a connector for attachment to a syringe, wherein the hub has a first seal which engages sealingly with the connector,a slidable sleeve adapted to slide over the needle in a first longitudinal direction from a first position in which the needle is fully or partially covered by the sleeve to a second position in which the needle is exposed, and in a second longitudinal direction from the second position to a third position in which the needle is fully covered by the sleeve, the slidable sleeve including a distal end proximate the tip of the needle and an opposing free end proximate the connector, the free end of the slidable sleeve sliding over at least a portion of the hub when the slidable sleeve moves from the first position to the second position, anda pack surrounding the hollow needle, hub and slidable sleeve having a closed end covering the needle and an open end exposing the connector of the hub, wherein the pack is comprised of an elastic material which is gas-permeable and impermeable to microorganisms and pyrogens, and wherein the pack has a first section which abuts the hub or the first seal to form a second seal, and wherein the pack has a second section which engages the needle tip to form a third seal between the closed end of the pack and the needle tip, andwherein the needle tip extends past a distal end of the slidable sleeve in the first position in a pre-injection state.
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Accused Products
Abstract
A safety needle accessory includes a hub (6) having a connector (2) for surrounding a hollow needle. The hub has a first seal (10) that engages sealingly with the connector. A slidable sleeve (8) slides over the needle in a first longitudinal direction from a first position in which the needle is fully or partially covered by the sleeve to a second position in which the needle is exposed to a third position in the second direction in which the needle is fully covered by the sleeve. A pack (9) having a closed end surrounds the hollow needle, hub and slidable sleeve. The pack has a first section which abuts the hub or the first seal to form a second seal and the pack has a second section which engages the needle tip to form a third seal (12) between the closed end of the pack and a needle tip.
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Citations
17 Claims
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1. A safety needle accessory comprising:
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a hub for surrounding a hollow needle having a tip and having a connector for attachment to a syringe, wherein the hub has a first seal which engages sealingly with the connector, a slidable sleeve adapted to slide over the needle in a first longitudinal direction from a first position in which the needle is fully or partially covered by the sleeve to a second position in which the needle is exposed, and in a second longitudinal direction from the second position to a third position in which the needle is fully covered by the sleeve, the slidable sleeve including a distal end proximate the tip of the needle and an opposing free end proximate the connector, the free end of the slidable sleeve sliding over at least a portion of the hub when the slidable sleeve moves from the first position to the second position, and a pack surrounding the hollow needle, hub and slidable sleeve having a closed end covering the needle and an open end exposing the connector of the hub, wherein the pack is comprised of an elastic material which is gas-permeable and impermeable to microorganisms and pyrogens, and wherein the pack has a first section which abuts the hub or the first seal to form a second seal, and wherein the pack has a second section which engages the needle tip to form a third seal between the closed end of the pack and the needle tip, and wherein the needle tip extends past a distal end of the slidable sleeve in the first position in a pre-injection state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification