Medical component insertion device including a retractable needle

• US 9,861,792 B2
• Filed: 06/25/2015
• Issued: 01/09/2018
• Est. Priority Date: 02/25/2011
• Status: Active Grant

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Hall, John W., Patterson, Ryan C., Farnworth, Charles L.
• Primary Examiner(s): Price, Nathan R
• Assistant Examiner(s): Fredrickson, Courtney
• Application Number:
  US14/750,658
• Publication Number:
  US 20150290431A1
• Time in Patent Office: 929 Days
• Field of Search: 60416401-16601
• CPC Class Codes: A61M 2025/0656 having a tip larger than the rest of the body
• CPC Class Codes: A61M 2025/0681 Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
• CPC Class Codes: A61M 2025/0687 having means for atraumatic insertion in the body or protection of the tip of the sheath during insertion, e.g. special designs of dilators, needles or sheaths
• 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• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle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 25/09 Guide wires
• CPC Class Codes: A61M 29/00 Dilators with or without means for introducing media, e.g. remedies instruments for performing visual medical inspections of cavities or tubes of the body A61B1/00

Abstract

An insertion device for use in assisting with the placement of a medical device within the body of a patient is disclosed. For example, the insertion device can be employed to assist with the placement of an introducer, which provides a conduit for insertion of a catheter into the body. In one embodiment, the insertion device comprises a needle that is removably disposed within a bore defined by the medical device, and a needle retraction assembly. The needle retraction assembly can position the needle in any one of a first position wherein a distal tip of the needle is disposed a predetermined distance distal to a distal end of the medical device, a second position wherein the needle distal tip is disposed distal but proximate to the distal end of the medical device, and a third position wherein the needle distal tip is retracted within the medical device bore.

Claims

1. A method for inserting an elongate medical device defining a bore into a body of a patient, comprising:

inserting at least a distal tip of a needle into the body when the needle is positioned in a first locked position, the needle removably disposed within the bore of the medical device, the distal tip of the needle spaced a predetermined distance from a dilating distal end of the medical device in the first locked position;

retracting the needle from the first locked position to a second locked position such that the distal tip of the needle is disposed proximal to the distal tip of the needle in the first locked position and distal but proximate to the dilating distal end of the medical device; and

advancing the distal tip of the needle and the dilating distal end of the medical device into the body with the needle in the second locked position.

2. The method according to claim 1, further comprising retracting the needle from the second locked position to a third locked position such that the distal tip of the needle is retracted within the bore of the medical device.

3. The method according to claim 2, wherein the medical device includes a hub removably connected to an introducer sheath in the first, second, and third locked positions, further comprising detaching the hub from the introducer sheath and removing the medical device and the needle from a lumen of the introducer sheath.

4. The method according to claim 2, wherein the inserting comprises inserting the distal tip of the needle into a blood vessel, the method further comprising advancing a guidewire into the blood vessel through the bore of the medical device when the needle is in the third locked position, wherein the guidewire and the needle are side-by-side within the bore of the medical device.

5. The method according to claim 1, wherein the inserting comprises inserting the distal tip of the needle into a blood vessel, the method further comprising advancing a guidewire into the blood vessel when the needle is in the first locked position.

6. The method according to claim 1, wherein retracting the needle from the first locked position to the second locked position further comprises rotating a bevel of the distal tip of the needle from a first orientation to a second orientation different from the first orientation.

7. The method according to claim 1, wherein the needle is connected to a needle hub including a handle that extends through a longitudinal slot defined in a housing, the retracting comprising sliding the handle through the slot to move the needle from the first locked position to the second locked position.

8. The method according to claim 6, wherein the needle is fixedly secured to a needle hub slidably disposed in a housing, the housing having an inner wall defining a spiral track, the needle hub operably connected to the spiral track to rotate the bevel of the distal tip of the needle as the needle is moved from the first locked position to the second locked position.