Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-05-10
1998-09-22
McDermott, Corrine M.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604164, 604264, 604272, A61M 5178
Patent
active
058107800
ABSTRACT:
The assembly of this invention comprises an elastic plug that is retained in a medical device, such as a catheter. A needle having a distal portion and a proximal portion resides in the elastic plug. The proximal portion has a different cross-section than the distal portion. In one embodiment, the cross-section of the proximal portion is smaller than the distal portion. Upon removal of the needle from the catheter and the elastic plug, the space in the elastic plug that had been occupied by the proximal portion of the needle is closed to effectively achieve the sealing function of the plug. The needle may include one or more notches in fluid communication with the needle lumen. One notch is preferably located at the juncture between the proximal portion and the distal portion of the needle to facilitate the blood flow between the needle and the catheter for better visualization of blood flashback by the clinician.
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Brimhall Greg L.
Steinman Christopher P.
Thoresen Stephen L.
Becton Dickinson and Company
Lee Eric M.
McDermott Corrine M.
Rodriguez Cris L.
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