US 2002/0165497 A1Published application

Safety intravenous catheter assembly

AssigneeAlbany Medical College

InventorElliott S. Greene

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Abstract

A safety intravenous catheter assembly includes a catheter hub, a needle cover attachable to and releasably lockable with the catheter hub, and a needle which extends through and is withdrawn into the needle cover. In one embodiment, the safety intravenous catheter assembly is configured so that the fixedly connected catheter hub and needle cover may rotate around the needle. A stop assembly is attached to the needle and to the needle cover for maintaining a tip of the needle within the needle cover after catheter insertion. The stop assembly may include a first locking position whereby the catheter hub cannot disengage from the needle cover, and a second locking position whereby the catheter hub can disengage from the needle cover. The needle cover includes a notch clip which may be integrally formed as one-piece.

Claims21

Dependent claims

A safety intravenous catheter assembly for use with a needle having a tip, said assembly comprising:

a catheter hub having a first axial bore extending through said catheter hub and a notch extending outwardly in said first axial bore of said catheter hub;
a needle cover having a first end insertable in said first axial bore and a second axial bore extending through said needle cover;
a notch clip joined with said needle cover, said notch clip lockably engagable with said notch in said catheter hub when said first end of said needle cover is inserted in said catheter hub and the tip of the needle is inserted in said second axial bore at least adjacent to or past said notch clip so that said needle cover is inhibited from detachment from and rotation within said catheter hub, and said notch clip releasably disengagable from said notch in said catheter hub when the tip of the needle is withdrawn from said second axial bore prior to a distal portion of said notch clip so that said catheter hub passes out of engagement with said needle cover;
a needle case attachable to the needle;
a stop assembly attached to said needle cover and to said needle case for maintaining the tip of the needle within said needle cover, said stop assembly having a first locking position wherein said catheter hub cannot disengage from said needle cover, and a second locking position whereby said catheter hub can disengage from said needle cover;
and
means for rotatably attaching at least one of said needle case and said stop assembly to said needle cover so that said needle cover and said catheter hub together are rotatable about the needle when said notch clip is lockably engaged with said notch.

4 more elements

A safety intravenous catheter assembly for use with a needle, said assembly comprising:

a catheter hub having a first axial bore extending through said catheter hub and a notch extending outwardly in said first axial bore of said catheter hub;
a monolithic needle cover and a notch clip, said needle cover having a first end insertable in said first axial bore and a second axial bore extending through said needle cover;
said notch clip lockably engagable with said notch in said catheter hub when said first end of said needle cover is inserted in said catheter hub and the tip of the needle is inserted in said second axial bore at least adjacent to or past said notch clip so that said needle cover is inhibited from detachment from and rotation within said catheter hub;
said notch clip releasably disengagable from said notch in said catheter hub when the tip of the needle is withdrawn from said second axial bore prior to a distal portion of said notch clip so that said catheter hub passes out of engagement with said needle cover;
and
said notch clip being spaced from the needle when said first end of said needle cover is inserted in said catheter hub and the tip of the needle is inserted in said second axial bore at least adjacent to or above said notch clip so that said needle cover is inhibited from detachment from and rotation within said catheter hub.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/120,005Filed 10 Apr 2002
Priority: 31 Jul 1998
Published: 7 Nov 2002
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

A61M 25/0606
Body-piercing guide needles or the like: "Over-the-needle" catheter assemblies, e.g. I.V. catheters
A61M 25/0625
Having means for protecting only the distal tip of the needle, e.g. a needle guard: with a permanent connection to the needle hub, e.g. a guiding…
A61M 25/0631
Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders: having means for fully covering the needle…
A61M 5/3269
Being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel: guided by means not coaxially aligned with syringe…

Family

Application09/127,374Continuation · filed 31 Jul 1998
Application09/840,699Continuation in part · filed 23 Apr 2001
Application09/840,699Continuation · filed 23 Apr 2001
Application10/120,005Continuation in part · filed 10 Apr 2002
US 2001/0014786 A1Published application
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US 2002/0165497 A1This patent

From the US filing history. Foreign family members aren’t listed.