Needle for Bloodless IV

• US 20100217195A1
• Filed: 02/23/2010
• Published: 08/26/2010
• Est. Priority Date: 12/27/2004
• Status: Active Grant

• Current Assignee: Hoyt Frenzel, Michael Emmert
• Original Assignee: Hoyt Frenzel, Michael Emmert
• Inventors: Emmert, Michael, Frenzel, Hoyt
• Granted Patent: US 8,182,448 B2
• Time in Patent Office: Days
• US Class Current: 604/167.20
• CPC Class Codes: A61M 2025/0018 having a plug, e.g. an inflatable plug for closing catheter lumens
• CPC Class Codes: A61M 2025/0266 using pads, patches, tapes or the like
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0618 having means for protecting only the distal tip of the needle, e.g. a needle guard
• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle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 25/0643 Devices having a blunt needle tip, e.g. due to an additional inner component
• CPC Class Codes: A61M 25/0693 Flashback chambers

Abstract

An intravenous catheter system having a retractable needle system and a body system is disclosed. The retractable needle system includes a housing, a needle, a docking feature, and an optional anti-shearing mechanism. The body system includes a body, at least one hub, a catheter connector, at least one plug, a plug recoil mechanism, a locking mechanism, a flash chamber, and a flash window.

Claims

1. An intravenous catheter system, comprising:

a body having an internal volume, a proximal end, and a distal end;

a hub disposed at the distal end of the body;

a catheter in fluid communication with the proximal end of the body; and

a plug for providing a seal between the hub and the internal volume, the plug being operable between a first position for use with needle-type and blunt-type devices, and a second position for use with needleless devices;

wherein the plug is adapted to sealingly receive the needle-type and blunt-type devices while in the first position, and sealingly receive the needless devices while in the second position.

2. The intravenous catheter system according to claim 1, further comprising:

a recoil means for biasing the plug into the first position.

3. The intravenous catheter system according to claim 2, wherein the recoil means is disposed within the body.

4. The intravenous catheter system according to claim 2, wherein the recoil means is disposed within the hub.

5. The intravenous catheter system according to claim 2, wherein the recoil means is disposed partially within the body and partially within the hub.

6. The intravenous catheter system according to claim 1, further comprising:

at least one additional hub in fluid communication with the body; and

an additional plug for providing a seal between each additional hub and the internal volume, each additional plug being operable between a first position for use with needle-type and blunt-type devices, and a second position for use with needleless devices;

wherein each additional plug is adapted to sealingly receive the needle-type and blunt-type devices while in the first position, and sealingly receive the needless devices while in the second position.

7. The intravenous catheter system according to claim 1, further comprising:

an intravenous needle extending through the plug, the internal volume, and the catheter.

8. The intravenous catheter system according to claim 1, further comprising:

a locking means for selectively limiting movement of the plug relative to the hub.

9. The intravenous catheter system according to claim 1, further comprising:

recessed channels on the exterior surface of the plug; and

recessed channels on the interior surface of the hub and the body;

wherein the recessed channels on the interior surfaces of the hub and the body are in fluid communication with the recessed channels on the exterior surface of the plug when the plug is in the second position, so as to allow fluid transfer from the needleless devices while in the second position.

10. An intravenous catheter system, comprising:

a body having an internal volume and a proximal end;

a catheter in fluid connection with the proximal end of the body; and

a means for limiting movement of the body relative to an injection site on a patient, the means for limiting movement being disposed between the body and the injection site.

11. The intravenous catheter system according to claim 10, wherein the means for limiting movement of the body comprises:

a layer of adhesive.

12. The intravenous catheter system according to claim 10, wherein the means for limiting movement of the body comprises:

a flattened surface on the body adapted for abutment to the injection site.

13. The intravenous catheter system according to claim 10, further comprising:

a translucent flash window integral with the body for allowing visual inspection of the internal volume.

14. A retractable needle for use with an intravenous catheter having a plug, the needle comprising:

a full diameter portion that extends through the catheter;

a reduced diameter portion that extends through the plug; and

a transitional portion located between the full diameter portion and the reduced diameter portion;

wherein the reduced diameter portion is selectively configured to generate less compressive force on the plug than the full diameter portion and the transitional portion while the intravenous needle is in an extended position.

15. The needle according to claim 14, wherein the transitional portion is tapered.

16. The needle according to claim 14, wherein the transitional portion is abrupt.

17. The needle according to claim 14, wherein the transitional portion is configured such that the full diameter portion and the reduced diameter portion are offset from each other.

18. The needle according to claim 14, wherein the transitional portion is configured such that the full diameter portion and the reduced diameter portion are coaxial with each other.

19. The needle according to claim 14, wherein the reduced diameter portion is flat.

20. The needle according to claim 14, further comprising:

a flash hole disposed in the full diameter portion, the flash hole being aligned with a flash window in the intravenous catheter.