LOW-PROFILE EXTENSION FOR A CATHETER ASSEMBLY

• US 20180289920A1
• Filed: 04/07/2017
• Published: 10/11/2018
• Est. Priority Date: 04/07/2017
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Harding, Weston F., Staley, Shaun
• Granted Patent: US 11,116,936 B2
• Time in Patent Office: Days
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0089 Single injection needle protruding axially, i.e. along the longitudinal axis of the catheter, from the distal tip
• CPC Class Codes: A61M 2025/0091 the single injection needle being fixed
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2039/1077 Adapters, e.g. couplings adapting a connector to one or several other connectors
• 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 25/0067 characterised by the distal end, e.g. tips A61M25/0054, A61M25/04 take precedence; balloon catheters A61M25/10
• CPC Class Codes: A61M 25/0082 Catheter tip comprising a tool
• CPC Class Codes: A61M 25/0084 being one or more injection needles
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• 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 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence

Abstract

An extension for a catheter assembly may include a distal end and a proximal end. The distal end may include one or more cantilever arms and an insertion feature spaced apart from the cantilever arms. The insertion feature may be configured to insert into a lumen of a catheter adapter to provide a fluid connection between the catheter adapter and the extension. The one or more cantilever arms may be configured to engage in a snap-fit with the catheter adapter. The proximal end of the extension may include a female luer fitting.

Claims

1. A extension for a catheter assembly, the extension comprising:

a distal end, comprising a cantilever arm and an insertion feature spaced apart from the cantilever arm, wherein the insertion feature is configured to insert into a lumen of a catheter adapter to provide a fluid connection between the catheter adapter and the extension, wherein the cantilever arm is configured to engage in a snap-fit with the catheter adapter; and

a proximal end comprising a female luer fitting.

2. The extension of claim 1, further comprising an elongated tubular element disposed between the distal end and the proximal end.

3. The extension of claim 1, wherein a distal end of the cantilever arm comprises a hook.

4. The extension of claim 1, wherein the insertion feature is spaced apart from the cantilever arm by a separator element that extends outwardly with respect to a longitudinal axis of the extension.

5. The extension of claim 1, wherein the cantilever arm is a first cantilever arm, further comprising a second cantilever arm, wherein the first cantilever arm opposes the second cantilever arm.

6. The extension of claim 1, further comprising a grip portion disposed between the distal end and the proximal end of the extension, wherein the grip portion comprises one or more wings or one or more protrusions.

7. A catheter system, comprising:

a catheter adapter, comprising a proximal end, a distal end, and a lumen extending therebetween, wherein the proximal end comprises a plurality of slots and a proximal lumen opening, wherein the lumen comprises a septum, wherein the distal end comprises a catheter configured to be inserted into vasculature of a patient, wherein the catheter adapter is configured to be selectively coupled with a distal end of a needle safety feature;

an extension, comprising a distal end, a proximal end, and a lumen extending therebetween, wherein the distal end of the extension comprises a cantilever arm and an insertion feature spaced apart from the cantilever arm, wherein the insertion feature is configured to insert into the lumen of the catheter adapter to open the septum and provide a fluid connection between the catheter adapter and the extension, wherein the cantilever arm is configured to insert into the plurality of slots to engage in a snap-fit with the catheter adapter.

8. The catheter system of claim 7, wherein the proximal end of the extension comprises a female luer fitting.

9. The catheter system of claim 7, wherein the catheter adapter comprises a stabilization platform.

10. The catheter system of claim 9, wherein the plurality of slots are disposed within the stabilization platform.

11. The catheter system of claim 10, wherein the insertion feature is spaced apart from the cantilever arm by a separator element that extends outwardly with respect to a longitudinal axis of the extension.

12. The catheter system of claim 11, wherein a width of each of the plurality of separator elements is approximately equal to a width of the stabilization platform.

13. The catheter system of claim 7, wherein the cantilever arm is a first cantilever arm, further comprising a second cantilever arm, wherein the first cantilever arm opposes the second cantilever arm.

14. The catheter system of claim 7, further comprising a grip and an elongated tubular element disposed between the distal end and the proximal end, wherein the grip is disposed proximal to the elongated tubular element.

15. A catheter system, comprising:

a catheter adapter, comprising proximal end, a distal end, and a lumen extending therebetween, wherein the proximal end comprises a first female luer-type fitting, wherein the distal end comprises a catheter configured to be inserted into vasculature of a patient; and

an extension, comprising a distal end, a proximal end, and a lumen extending therebetween, wherein the distal end of the extension comprises a male luer-type fitting coupled to the first female luer-type fitting, wherein the proximal end of the extension comprises a second female luer-type fitting.

16. The catheter system of claim 15, wherein the first female luer-type fitting is a smaller size than the second female luer-type fitting.

17. The catheter system of claim 15, wherein the male luer-type fitting is sized smaller than International Organization for Standardization (“

ISO”

) 80369-7, wherein a portion of the lumen of the extension that extends through the male luer-type fitting and the elongated tubular element has a generally uniform diameter.

18. The catheter system of claim 15, wherein the extension further comprises an elongated tubular element disposed between the distal end and the proximal end of the extension.

19. The catheter system of claim 15, wherein the extension further comprises a grip portion disposed between the distal end and the proximal end of the extension, wherein the grip portion comprises one or more wings or one or more protrusions.

20. The catheter system of claim 15, wherein the catheter adapter comprises a low-profile stabilization platform, wherein the stabilization platform is smooth and free of any protrusions except a grip element.