A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/32 (2006.01) A61B 17/34 (2006.01) A61M 25/00 (2006.01)
Patent
CA 2277245
An epidural needle has an elongate tube defining a longitudinal axis having a proximal end, a distal end and an axial hollow bore having an inside diameter therethrough. The needle has a hub with a proximal end, a distal end and an open passageway having an inside diameter substantially similar to the hollow bore therethrough, the distal end of the hub being fixedly attached to the proximal end of the elongate tube so that the hollow bore of the elongate tube is in fluid communication and substantial axial alignment with the open passageway. The hub further has a cavity disposed between the proximal end and the distal end of the hub. There is a resilient member with an opening therethrough that has an inner diameter substantially similar to the inside diameter of the hollow bore disposed in the cavity so that the opening is substantially axially aligned and in fluid communication with the open passageway. The hub of the epidural needle of the invention has a clamp with a releasable latch disposed about the resilient member. The clamp is selectively movable between an open position wherein the inner diameter of the resilient member is substantially unaffected. a clamp position wherein the clamp causes a strain to the resilient member and thereby reduces the inner diameter of the opening through the resilient member. The clamp also has a latch position where the latch releasably retains the clamp in the clamp position.
Daw Sean P.
Marsh Ronald W.
Becton Dickinson And Company
Gowling Lafleur Henderson Llp
LandOfFree
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