US 11,529,498 B2 · Retractable needle catheter delivery apparatus

Abstract

A catheter insertion system includes a housing extending along a longitudinal axis. A needle extends distally from a distal end of the housing. The needle has a longitudinal passage coaxially aligned with the housing. A catheter has a length and is sized and shaped to be advanced from a retracted position within the longitudinal passage of the needle to an extended position with at least a portion of the catheter length extending beyond a distal tip of the needle. The needle is typically configured to be retracted back into the housing after the catheter has been advanced, thus providing an integrated catheter and catheter insertion apparatus. After needle retraction, the housing may be taped to the patient's skin while the needle remains protected within the housing. A luer on the catheter may then be connected to a fluid or other source in an otherwise conventional manner.

Claims15

Dependent claims

A method for inserting a catheter into a vein of a patient, said method comprising:

advancing a distal tip of a needle on a housing into the vein, wherein the catheter is disposed within a lumen of the needle while the distal tip is being advanced;
pushing distally on a proximal connector on the catheter to distally advance a distal port of the catheter from the needle into the vein of the patient, wherein the proximal connector engages a proximal end of the housing;
retracting the distal tip of the needle over the catheter and maintaining the distal tip of the needle in the housing while the distal port of the catheter remains in the vein of the patient;
securing the housing to the patient while the distal tip of the needle remains in the housing;
and
attaching a fluid delivery tube to the proximal connector which is in fluid communication with a lumen of the catheter while the distal tip of the needle remains protected in the housing.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/244,871Filed 29 Apr 2021 · continuation

Priority

27 Nov 2019

Published

US 2021/0244919 A112 Aug 2021

Granted

20 Dec 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

A61M 25/0631
Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders: having means for fully covering the needle…
A61M 25/0075
Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable: valve means
A61M 25/0606
Body-piercing guide needles or the like: "Over-the-needle" catheter assemblies, e.g. I.V. catheters
A61M 25/065
Body-piercing guide needles or the like: guide needles

Family

Application62/941,211Us provisional application · filed 27 Nov 2019

Application62/941,541Us provisional application · filed 27 Nov 2019

Application62/985,182Us provisional application · filed 4 Mar 2020

Application63/023,699Us provisional application · filed 12 May 2020

PCT/US2020/061633Parent of this continuation · filed 20 Nov 2020

Application63/144,258Us provisional application · filed 1 Feb 2021

US 2021/0244919 A1Pre-grant publication · published 12 Aug 2021

US 11,529,498 B2This patent

From the US filing history. Foreign family members aren’t listed.

Retractable needle catheter delivery apparatus

Life of this patent

Retractable needle catheter delivery apparatus

Life of this patent

Abstract

Claims15