Medical connector

• US 9,775,981 B2
• Filed: 03/03/2014
• Issued: 10/03/2017
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: ICU Medical Incorporated
• Original Assignee: ICU Medical Incorporated
• Inventors: Nelson, David, Fangrow, Thomas F.
• Primary Examiner(s): Cerioni, Daniel
• Application Number:
  US14/195,602
• Publication Number:
  US 20140276215A1
• Time in Patent Office: 1,310 Days
• Field of Search: 600573
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150221 Valves
• CPC Class Codes: A61B 5/150992 Blood sampling from a fluid line external to a patient, such as a catheter line, combined with an infusion line; blood sampling from indwelling needle sets, e.g. sealable ports, luer couplings, valves tubing connectors and couplings A61M39/00
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 39/225 Flush valves, i.e. bypass valves for flushing line

Abstract

A medical connector for use in a fluid pathway. A valve member with sealing rings helps preclude undesired accumulation of fluid within the connector. A branched connector includes a fluid diverter extending away from a port of the branched connector. The fluid diverter is configured to divert fluid flowing through the branched connector and into a medical connector attached thereto, flushing a distal portion of the medical connector.

Claims

1. A three-way stopcock adapted for flushing a needleless connector on one port of the stopcock, the three-way stopcock comprising:

a stopcock body comprising a first port, a second port, a third port, and a connecting region connecting the first port, the second port, and the third port, wherein the third port is positioned between the first and second ports;

a fluid director positioned at least partially within the connecting region, the fluid director configured to selectively place one or more of the first port, the second port, and the third port in fluid communication with another of the first port, the second port, and the third port;

a fluid diverter extending away from the connecting region at the third port and having a proximal end and a distal end positioned further from the third port than the proximal end; and

the needleless connector at the third port and at least partially surrounding the fluid diverter, the needleless connector comprising;

a connector housing;

a compressible seal positioned at least partially within the connector housing and having an interior cavity and a slit on a top of the seal that extends through the top and into the interior cavity;

an internal projection member positioned at least partially within the compressible seal, the internal projection member having walls that define an internal cavity that encompasses the fluid diverter, an opening at a proximal end of the internal projection member, an interior height from the opening to a most distal surface of the walls that define the internal cavity, and at least one distal opening at a distal end of the internal projection member, the at least one distal opening having a proximal surface and a distal surface;

wherein the fluid diverter is adjacent the walls of the internal cavity of the internal projection member to substantially bifurcate the internal cavity of the internal projection member at the proximal end of the internal projection member and wherein the fluid diverter has a distal tip that extends within the internal projection member to at least the proximal surface of the at least one distal opening and the distal tip is positioned proximal the distal surface of the at least distal opening.

2. The three-way stopcock of claim 1, wherein the fluid diverter bifurcates the internal cavity of the internal projection member at the proximal end of the internal projection member.

3. The three-way stopcock of claim 1, wherein the fluid diverter substantially bifurcates at least about half of the internal cavity of the internal projection member.

4. The three-way stopcock of claim 3, wherein the fluid diverter substantially bifurcates at least about three quarters of the internal cavity of the internal projection member.

5. The three-way stopcock of claim 1, wherein the compressible seal has a plurality of sealing rings on an interior surface thereof, the plurality of sealing rings configured to contact and seal against the internal projection member.

6. The three-way stopcock of claim 5, wherein at least one sealing ring of the plurality of sealing rings contacts the internal projection member above the at least one distal opening and at least one sealing ring of the plurality of sealing rings contacts the internal projection member below the at least one distal opening.

7. The three-way stopcock of claim 5, wherein a height of the internal projection member from the distal surface of the at least one distal opening to an upper tip of the internal projection member is greater than or equal to a height in the cavity of the compressible seal from an uppermost sealing ring to an uppermost surface of the interior cavity.

8. The three-way stopcock of claim 1, wherein the fluid diverter and the internal projection member are integrally formed.