Safety intravenous catheter assembly and method for use with a needle
DCFirst Claim
1. A safety intravenous catheter assembly for use with a needle, comprising:
- a catheter hub having a first axial bore extending through the catheter hub;
a needle cover having a first end of the needle cover insertable in the first axial bore and a second axial bore extending through the needle cover and co-axial with the first axial bore;
a continuous circumferential notch extending outwardly in the first axial bore of the catheter hub;
a notch clip joined with the needle cover and positionable to engage the notch of the catheter hub, the notch clip having a distal portion and wherein the notch clip engages the notch and locks the catheter hub in engagement with the needle cover when the needle cover is inserted in the first axial bore and a tip of the needle is inserted in the second axial bore at least adjacent or past the distal portion of the notch clip, wherein the notch clip disengages the notch and enables the catheter hub to pass out of engagement with the needle cover when the tip of the needle is located in the second axial bore prior to the distal portion of the notch clip, wherein the notch clip is maintainable adjacent the needle throughout a range of positions from being in forceful contact with the needle to being spaced from the needle when the needle cover is inserted in the first axial bore and the tip of the needle is inserted in the second axial bore at least adjacent or past the distal portion of the notch clip, wherein the notch clip is maintainable adjacent the catheter hub throughout a range of positions from being in forceful contact with the catheter hub to being spaced from the catheter hub when the needle cover is inserted in the first axial bore and the tip of the needle is inserted in the second axial bore at least adjacent or past the distal portion of the notch clip, wherein the notch clip does not intersect the second axial bore when the notch clip is in a non-biased position and wherein the needle cover and the notch clip may rotate in a frictionless to near frictionless relationship relative to one another when the notch clip is in the non-biased position.
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Accused Products
Abstract
A safety intravenous catheter assembly and method for use with a needle is comprised of the following. A catheter hub has an axial bore extending through the catheter hub. A needle cover has a first end of the needle cover insertable in the axial bore and a second axial bore extending through the needle cover and co-axial with the axial bore. A continuous circumferential notch extends outwardly in the axial bore of the catheter hub. A notch clip is joined with the needle cover and is positionable to engage the notch of the catheter hub. The notch clip can engage a side of the needle and the notch and locks the catheter hub in engagement with the needle cover when the needle cover is inserted in the axial bore and the needle is inserted in the second axial bore at least adjacent or past a distal portion of the notch clip. Further, the notch clip is maintained adjacent the needle in a range of positions from being in non-forceful contact with the needle to being spaced from the needle. The notch clip disengages the notch and enables the catheter hub to pass out of engagement with the needle cover when the needle is located in the second axial bore prior to the distal portion of the notch clip.
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Citations
19 Claims
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1. A safety intravenous catheter assembly for use with a needle, comprising:
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a catheter hub having a first axial bore extending through the catheter hub;
a needle cover having a first end of the needle cover insertable in the first axial bore and a second axial bore extending through the needle cover and co-axial with the first axial bore;
a continuous circumferential notch extending outwardly in the first axial bore of the catheter hub;
a notch clip joined with the needle cover and positionable to engage the notch of the catheter hub, the notch clip having a distal portion and wherein the notch clip engages the notch and locks the catheter hub in engagement with the needle cover when the needle cover is inserted in the first axial bore and a tip of the needle is inserted in the second axial bore at least adjacent or past the distal portion of the notch clip, wherein the notch clip disengages the notch and enables the catheter hub to pass out of engagement with the needle cover when the tip of the needle is located in the second axial bore prior to the distal portion of the notch clip, wherein the notch clip is maintainable adjacent the needle throughout a range of positions from being in forceful contact with the needle to being spaced from the needle when the needle cover is inserted in the first axial bore and the tip of the needle is inserted in the second axial bore at least adjacent or past the distal portion of the notch clip, wherein the notch clip is maintainable adjacent the catheter hub throughout a range of positions from being in forceful contact with the catheter hub to being spaced from the catheter hub when the needle cover is inserted in the first axial bore and the tip of the needle is inserted in the second axial bore at least adjacent or past the distal portion of the notch clip, wherein the notch clip does not intersect the second axial bore when the notch clip is in a non-biased position and wherein the needle cover and the notch clip may rotate in a frictionless to near frictionless relationship relative to one another when the notch clip is in the non-biased position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 17, 18)
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8. A method for using a safety intravenous catheter assembly in combination with a needle, the safety intravenous catheter assembly including a catheter hub having a first axial bore extending therethrough, the method comprising:
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withdrawing the needle from a second axial bore, the second axial bore being located in a needle cover and the needle cover including a notch clip positionable in engagement with an outward extending notch in a catheter hub;
selectively maintaining the notch clip throughout a range of positions from being in forceful contact with the needle to being spaced from the needle when the needle cover is inserted in the first axial bore and a tip of the needle is inserted in the second axial bore at least adjacent or past a distal portion of the notch clip;
selectively maintaining the notch clip throughout a range of positions from being in forceful contact with the catheter hub to being spaced from the catheter hub when the needle cover is inserted in the first axial bore and the tip of the needle is inserted in the second axial bore at least adjacent or past the distal portion of the notch clip;
selectively maintaining the notch clip in a non-intersecting relationship with the second axial bore when the notch clip is in a non-biased position;
rotating the notch clip and the catheter hub in a frictionless to near frictionless relationship relative to one another when the notch clip is in the non-biased position;
sliding the needle in engagement with the notch clip when withdrawing the needle from the second axial bore;
forcing the notch clip into the second axial bore; and
,disengaging the catheter hub from the needle cover. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 19)
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Specification