Intravenous catheter and insertion device with reduced blood spatter
First Claim
1. A method for inserting a catheter into a patient, comprising:
- providing a catheter insertion device including;
a housing;
a needle attached to a needle carrier, the needle and the needle carrier designed to move relative to the housing;
a catheter including a catheter shaft attached to a catheter hub, the catheter shaft positioned coaxially over the needle, the catheter hub including a closed proximal chamber separated from a distal chamber by a septum; and
a guidewire having a coil tip including a straightened configuration and a coiled configuration, the coil tip positioned in a lumen of the needle in the straightened configuration, the guidewire designed to move relative to the housing and the needle;
inserting a distal end of the needle and the catheter shaft into a blood vessel of the patient;
advancing the coil tip out of the needle lumen, wherein the coil tip transitions from the straightened configuration to the coiled configuration in the blood vessel;
advancing the catheter shaft over the guidewire; and
withdrawing the guidewire and the needle from the catheter, wherein the coil tip transitions from the coiled configuration to the straightened configuration in the catheter shaft, and from the straightened configuration to the coiled configuration in the closed proximal chamber of the catheter hub.
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Accused Products
Abstract
A catheter insertion device and method for insertion. The catheter insertion device can include a housing, a needle attached to a needle carrier, a catheter including a catheter shaft attached to a catheter hub, and a guidewire. The guidewire can include a coil tip positioned in a lumen of the needle. The method for insertion can include inserting a distal end of the needle and the catheter shaft into a blood vessel of a patient, advancing the coil tip out of the needle lumen and into the blood vessel, advancing the catheter over the guidewire, and withdrawing the guidewire and the needle from the catheter. The coil tip can include a straightened configuration and a coiled configuration. The coil tip can transition from the straightened configuration in the needle lumen to the coiled configuration in the blood vessel.
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Citations
13 Claims
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1. A method for inserting a catheter into a patient, comprising:
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providing a catheter insertion device including; a housing; a needle attached to a needle carrier, the needle and the needle carrier designed to move relative to the housing; a catheter including a catheter shaft attached to a catheter hub, the catheter shaft positioned coaxially over the needle, the catheter hub including a closed proximal chamber separated from a distal chamber by a septum; and a guidewire having a coil tip including a straightened configuration and a coiled configuration, the coil tip positioned in a lumen of the needle in the straightened configuration, the guidewire designed to move relative to the housing and the needle; inserting a distal end of the needle and the catheter shaft into a blood vessel of the patient; advancing the coil tip out of the needle lumen, wherein the coil tip transitions from the straightened configuration to the coiled configuration in the blood vessel; advancing the catheter shaft over the guidewire; and withdrawing the guidewire and the needle from the catheter, wherein the coil tip transitions from the coiled configuration to the straightened configuration in the catheter shaft, and from the straightened configuration to the coiled configuration in the closed proximal chamber of the catheter hub. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification