Blood control for a catheter insertion device

• US 10,493,262 B2
• Filed: 09/12/2017
• Issued: 12/03/2019
• Est. Priority Date: 09/12/2016
• Status: Active Grant

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Tran, Huy N., Christensen, Mark A., Hadley, Chad A., Stats, Jason R.
• Primary Examiner(s): Price, Nathan R
• Assistant Examiner(s): Igel, Mark Alan
• Application Number:
  US15/702,537
• Publication Number:
  US 20180071509A1
• Time in Patent Office: 812 Days
• CPC Class Codes: A61M 2039/2426 Slit valve
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• 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• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle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 25/065 Guide needles
• CPC Class Codes: A61M 25/0693 Flashback chambers
• CPC Class Codes: A61M 25/09041 Mechanisms for insertion of guide wires
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 39/221 Frangible or pierceable closures within tubing A61M39/14 takes precedence; frangible closures for containers A61J1/14
• CPC Class Codes: A61M 39/24 Check- or non-return valves

Abstract

A fluid control component configured for controlling fluid flow through the hub of a catheter assembly during and after placement into the patient is disclosed. In one embodiment, the fluid control component comprises a body disposed within a cavity of the hub, the body being movable between a first position and a second position, wherein the body does not pierce a valve disposed in the hub when in the first position and wherein the body pierces the valve when in the second position. The body includes a conduit to enable fluid flow through an internal portion of the body when the body is in the second position, and a plurality of longitudinally extending ribs disposed on an exterior surface of the body. The ribs provide at least one fluid flow channel between the valve and an external portion of the body when the body is in the second position.

Claims

1. A fluid control component designed for use in a hub of a catheter assembly, the hub including a valve disposed in a cavity of the hub, the fluid control component comprising:

a body movable between a first position and a second position relative to the valve, the body including;

a proximal end including a proximal opening;

a distal end including a distal opening, the distal end positioned proximal of the valve in the first position and distal to the valve in the second position;

a conduit fluidly connecting the proximal opening to the distal opening; and

a plurality of longitudinally extending ribs disposed on an exterior surface of the body, each of the ribs extending from the distal end to the proximal end, both the body and plurality of ribs contribute to a conical shape.

2. The fluid control component as defined in claim 1, wherein the valve includes a tricuspid valve including three slits.

3. The fluid control component as defined in claim 2, wherein an outer termination point of each slit is a staggered termination point.

4. The fluid control component as defined in claim 1, wherein the conduit is centrally located in the body.

5. The fluid control component as defined in claim 1, wherein each of the ribs includes a shoulder.

6. The fluid control component as defined in claim 1, wherein each of the ribs includes a notch configured to releasably engage with an annular ridge defined in the cavity of the hub when the body is in the first position.

7. The fluid control component as defined in claim 6, wherein a proximal end of each of the ribs includes a protrusion configured to engage the annular ridge when the body is in the second position.

8. The fluid control component as defined in claim 1, wherein each of the ribs extends radially outward from the body.

9. The fluid control component as defined in claim 1, wherein the body is configured to be moved from the first position to the second position via insertion of a medical component into the cavity of the hub.

10. The fluid control component as defined in claim 9, wherein the medical component is a luer connector.

11. The fluid control component as defined in claim 1, wherein the ribs comprise four equally spaced ribs.

12. The fluid control component as defined in claim 1, wherein each of the ribs extend proximal of the proximal end of the body.

13. A catheter assembly, comprising:

an elongate catheter tube defining at least one lumen extending between a proximal end and a distal end of the catheter tube;

a hub in fluid communication with the at least one lumen of the catheter tube, the hub including a valve disposed in a cavity of the hub; and

a fluid control component designed for use in the hub, comprising;

a body movable between a first position and a second position relative to the valve, the body including;

a proximal end including a proximal opening;

a distal end including a distal opening, the distal end positioned proximal of the valve in the first position and distal to the valve in the second position;

a conduit fluidly connecting the proximal opening to the distal opening; and

a plurality of longitudinally extending ribs disposed on an exterior surface of the body, each of the ribs extending from the distal end to the proximal end, both the body and plurality of ribs contribute to a conical shape.

14. The catheter assembly as defined in claim 13, wherein at least one fluid flow channel is disposed between adjacent ribs of the ribs.

15. The catheter assembly as defined in claim 13, wherein receipt of a luer connector in the cavity of the hub causes the body to move from the first position to the second position.

16. The catheter assembly as defined in claim 13, wherein each of the ribs extend proximal of the proximal end of the body.

17. A fluid control component designed for use in a hub of a catheter assembly, the hub including a valve disposed in a cavity of the hub, the fluid control component comprising:

a body movable between a first position and a second position, the body including;

a proximal end including a proximal opening;

a distal end including a distal opening, the distal end positioned proximal of the valve in the first position and distal to the valve in the second position;

a central conduit fluidly connecting the proximal opening to the distal opening; and

a plurality of longitudinally extending ribs disposed on an exterior surface of the body, each of the ribs extending from the distal end to the proximal end of the body, both the body and plurality of ribs contribute to a conical shape, wherein each of the ribs includes a notch configured to releasably engage with an annular ridge defined in the cavity of the hub when the body is in the first position.

18. The fluid control component as defined in claim 17, wherein the valve includes a tricuspid valve including three slits.

19. The fluid control component as defined in claim 18, wherein an outer termination point of each slit is a staggered termination point.

20. The fluid control component as defined in claim 17, wherein the conduit is centrally located in the body.

21. The fluid control component as defined in claim 17, wherein each of the ribs includes a shoulder.

22. The fluid control component as defined in claim 17, wherein a proximal end of each of the ribs includes a protrusion configured to engage the annular ridge when the body is in the second position.

23. The fluid control component as defined in claim 17, wherein each of the ribs extends radially outward from the body.

24. The fluid control component as defined in claim 17, wherein the body is configured to be moved from the first position to the second position via insertion of a medical component into the cavity of the hub.

25. The fluid control component as defined in claim 24, wherein the medical component is a luer connector.

26. The fluid control component as defined in claim 17, wherein the body includes four equally spaced ribs.

27. The fluid control component as defined in claim 17, wherein each of the ribs extend proximal of the proximal end of the body.

28. The fluid control component as defined in claim 17, wherein the catheter assembly is included in a catheter insertion device.

29. The fluid control component as defined in claim 28, wherein the catheter insertion device includes a blood flash indicator, the blood flash indicator including a translucent compartment disposed about a portion of a hollow needle, the needle including first and second notches covered by the compartment.

30. The fluid control component as defined in claim 29, wherein the blood flash indicator is disposed in a needle hub, the needle hub disposed within a cavity of a housing of the catheter insertion device, the needle hub including a longitudinally extending slot in which the blood flash indicator and a portion of the needle are disposed, the slot including a plurality of shoulders configured to support the needle, wherein at least one of the shoulders includes a substantially abrupt proximal edge configured to prevent the flow of a liquid adhesive out of the slot when the adhesive is used to secure the needle in the slot.

31. The fluid control component as defined in claim 30, wherein the needle hub further includes a radially extending ridge disposed proximate a proximal end of the needle hub, the ridge configured to support a spring of the catheter insertion device.

32. The fluid control component as defined in claim 17, wherein a proximal portion of each of the ribs includes a protrusion configured to engage the annular ridge when the body is in the second position, the proximal portion of each of the ribs being longitudinally aligned with a more distal portion of a respective one of the ribs.

33. A catheter assembly, comprising:

an elongate catheter tube defining at least one lumen that extends between a proximal end and a distal end of the catheter tube;

a catheter hub disposed at the proximal end of the catheter tube, the catheter hub including a valve disposed in a cavity; and

a blood control component movably disposed within the cavity of the catheter hub, the blood control component movable from a non-actuated position to an actuated position relative to the valve, the blood control component including;

a body defining a conduit; and

a plurality of ribs disposed on the body from a distal end to a proximal end thereof, the ribs configured to engage with leaflets of the valve when the blood control component is moved from the non-actuated position to the actuated position, the ribs providing spacing between leaflets of the valve and an outer surface of the blood control component in the actuated position.

34. The catheter assembly as defined in claim 33, wherein the spacing between the leaflets and the outer surface of the blood control component enables fluid to flow about an exterior portion of the blood control component in the actuated position.

35. The catheter assembly as defined in claim 33, wherein the valve is a tricuspid valve including three leaflets, and wherein the ribs comprise at least four radially extending ribs.

36. The catheter assembly as defined in claim 33, wherein each rib includes a notch configured to engage with an annular ridge disposed in the cavity of the catheter hub.

37. The catheter assembly as defined in claim 33, wherein each of the plurality of ribs extend proximal of the proximal end of the body.