Intravenous catheter and insertion device with reduced blood spatter

• US 9,616,201 B2
• Filed: 02/27/2014
• Issued: 04/11/2017
• Est. Priority Date: 01/31/2011
• Status: Active Grant

• Current Assignee: Vascular Pathways, Inc. (Becton, Dickinson & Co)
• Original Assignee: Vascular Pathways, Inc. (Becton, Dickinson & Co)
• Inventors: Belson, Amir
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): Zhang, Jenna
• Application Number:
  US14/192,541
• Publication Number:
  US 20140180250A1
• Time in Patent Office: 1,139 Days
• CPC Class Codes: A61M 2005/1583 Needle extractors
• CPC Class Codes: A61M 2025/09066 having a coil without a core possibly combined with a sheath
• CPC Class Codes: A61M 2025/09175 having specific characteristics at the distal tip
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/01 Introducing, guiding, advancing, emplacing or holding catheters A61M25/10 takes precedence
• CPC Class Codes: A61M 25/06 Body-piercing guide needles or the like
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
• CPC Class Codes: A61M 25/0637 Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin
• CPC Class Codes: A61M 25/065 Guide needles
• CPC Class Codes: A61M 25/09 Guide wires
• CPC Class Codes: A61M 25/09041 Mechanisms for insertion of guide wires
• CPC Class Codes: A61M 25/0905 extendable, e.g. mechanisms for extension
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

A venous access catheter is combined with a needle, guidewire, and actuator where the needle is disposed coaxially over the guidewire and the catheter is disposed coaxially over the needle. A hub at a proximal end of the access catheter includes a wiping element to clean blood from the needle and guidewire as they are removed and a side port to allow connection of fluids after the access catheter is placed.

Claims

1. A method for inserting a catheter into a patient, the method comprising:

providing a catheter insertion device including an outer housing, a tubular access needle attached to a needle carrier that is slidable with respect to the outer housing, a tubular catheter having a hub detachably attached at a distal end of the outer housing and positioned coaxially around the tubular access needle, an actuator mechanism, and a safety guidewire having a tip comprising a preformed coil and being sized and configured to be advanced through the tubular access needle;

inserting a distal end of the tubular access needle into the patient;

actuating the actuator mechanism to advance the safety guidewire out through the tubular access needle in a distal direction so that the preformed coil assumes a coiled configuration;

advancing a distal end of the tubular catheter over the safety guidewire into the patient; and

actuating the actuator mechanism to withdraw the safety guidewire and the tubular access needle through the tubular catheter in a proximal direction;

wherein the actuating further comprises;

straightening the preformed coil as the preformed coil is advanced proximally through the tubular catheter; and

recoiling the preformed coil in the tubular catheter hub prior to pulling the preformed coil through a wiping element to remove blood prior to removing the preformed coil from the tubular catheter.

2. The method of claim 1, wherein the preformed coil is a planar coil.

3. The method of claim 2, wherein the planar coil is coplanar with a straight proximal portion of the safety guidewire.

4. The method of claim 2, wherein the planar coil is multi-planar, has a single coil, has a full radius on an end of the planar coil, and/or has a balled end with a diameter less than the diameter of the needle.

5. The method of claim 1, wherein, actuating the actuator mechanism releases a compression spring disposed coaxially over the tubular catheter and the safety guidewire to engage the needle carrier to withdraw the tubular access needle and the safety guidewire from the tubular catheter.

6. The method of claim 1, further comprising releasing the tubular catheter hub from the distal end of the outer housing.

7. The method of claim 1, wherein the catheter insertion device further comprises an interlocking member within the outer housing, which is engaged with a mating interlocking member on the needle carrier, wherein the compression spring is initially in a compressed state and constrained by the engagement of the interlocking member with the mating interlocking member, and wherein the actuator mechanism is actuated to disengage the mating interlocking member from the interlocking member, thus releasing the compression member to urge the needle carrier in the proximal direction.

8. The method of claim 1, further comprising moving an actuator handle distally to selectively advance the safety guidewire out through the tubular access needle in &

the distal direction and moving the actuator handle laterally to release the compression spring to actuate withdrawal of the safety guidewire and the tubular access needle in the proximal direction.

9. The method of claim 1, wherein the tubular catheter hub has an interior divided into a distal chamber and a proximal chamber by a septum, wherein the wiping element is at a proximal end of the proximal chamber.