Intravenous catheter and insertion device with reduced blood spatter

• US 10,328,239 B2
• Filed: 04/07/2017
• Issued: 06/25/2019
• 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): Zhang, Jenna
• Application Number:
  US15/481,773
• Publication Number:
  US 20170209668A1
• Time in Patent Office: 809 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• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle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 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.

Claims

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.

2. The method according to claim 1, wherein the withdrawing step comprises releasing a biasing member coupled to the needle carrier to urge the needle carrier toward a proximal end of the housing.

3. The method according to claim 2, wherein a proximal end of the guidewire is simultaneously urged toward the proximal end of the housing along with the needle carrier.

4. The method according to claim 2, wherein a proximal end of the guidewire is urged toward the proximal end of the housing after the needle carrier.

5. The method according to claim 4, wherein the needle carrier and the proximal end of the guidewire are urged toward the proximal end of the housing via a single activation of an actuating member.

6. The method according to claim 4, wherein the needle carrier and the proximal end of the guidewire are urged toward the proximal end of the housing via two separate activations of an actuating member.

7. The method according to claim 1, wherein the withdrawing step comprises manually moving the needle carrier and a proximal end of the guidewire toward a proximal end of the housing.

8. The method according to claim 7, wherein the withdrawing step comprises simultaneously moving the needle carrier and the proximal end of the guidewire toward the proximal end of the housing.

9. The method according to claim 1, wherein the catheter hub includes a septum and a wiping element positioned proximal to the septum, further comprising moving the coil tip through the septum and the wiping element.

10. The method according to claim 1, further comprising moving an actuator handle distally to advance the guidewire in a distal direction and moving the actuator handle laterally to initiate the withdrawing step.

11. The method according to claim 1, wherein the catheter hub includes a wiping element proximal to the septum, wherein the withdrawing step comprises moving the coil tip from the distal chamber to the closed proximal chamber through the septum, and from the closed proximal chamber out of the catheter hub through the wiping element.

12. The method according to claim 11, wherein following the step of moving the coil tip through the wiping element, the coil tip is distal to a distal end of the housing and visible to a user.

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