Bloodless intravenous integrated catheter

• US 7,666,166 B1
• Filed: 12/27/2004
• Issued: 02/23/2010
• Est. Priority Date: 12/27/2004
• Status: Active Grant

• Current Assignee: Blivic, LLC
• Original Assignee: Blivic, LLC
• Inventors: Emmert, Michael, Frenzel, Hoyt
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): BERDICHEVSKY, AARTI
• Application Number:
  US11/022,971
• Time in Patent Office: 1,884 Days
• Field of Search: 604/164.08, 604/167.01, 604/167.02, 604/167.03, 604/167.04
• US Class Current: 604/167.02
• 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• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle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 catheter in fluid communication with the proximal end of the body;

a retractable needle system releasably connected to the body, the retractable needle system having a housing, an intravenous needle, and a means for selectively retracting the needle into the housing, the needle being operable between an extended position in which the needle extends through the catheter, and a retracted position in which the needle is within the housing;

an axially movable valve forming a fluid tight seal between the needle and the internal volume when the retractable needle system is connected to the body, and forming a fluid tight seal between the internal volume and the exterior of the body when the retractable needle system is disconnected from the body, the valve being axially movable relative to the body;

a threaded fastener disposed on the distal end of the body, such that a luer-lock device may be directly connected to the body;

wherein the valve moves between a first position in which the valve is substantially flush with the distal end of the body, and a second position in which the valve is entirely disposed within the body;

a recoil mechanism disposed within the internal volume and in direct contact with an interior face of the valve;

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

a flash hole extending from an inner channel of the intravenous needle to the exterior of the intravenous needle, the flash hole being aligned with the flash window such that the earliest issue of blood or fluid passing through the inner channel of the intravenous needle may be seen through the flash window.

2. The intravenous catheter system according to claim 1, wherein the valve is adapted to provide a fluid tight seal between the internal volume and the exterior of the body during repeated uses of needles, blunts, and needleless devices with the body after the retractable needle system has been disconnected from the body, the distal end of the body being configured to directly receive the needles, blunts, and needleless devices.

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

a means for restricting the intravenous needle from displacing in the direction of the extended position after the intravenous needle has been displaced toward the retracted position, the means being operable prior to retraction of the intravenous needle from the catheter.

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

a dead space plug disposed within the internal volume for reducing fluid storage capacity of the volume.

5. The intravenous catheter system according to claim 1, wherein the intravenous needle includes a hollow full diameter portion at one end for allowing fluid flow and a flat portion at the opposite end, such that the flat portion generates less compressive force on the valve than the other portions of the intravenous needle while the intravenous needle is in the extended position, the flat portion being in contact with the valve while the intravenous needle is in the extended position.