Multiport syringe

• US 20060224125A1
• Filed: 03/13/2006
• Published: 10/05/2006
• Est. Priority Date: 03/15/2005
• Status: Abandoned Application

• Current Assignee: Vasogen Ireland Ltd.
• Original Assignee: Vasogen Ireland Ltd.
• Inventors: Matsuura, David G., Simpson, Philip J.
• Application Number:
  US11/373,211
• Publication Number:
  US 20060224125A1
• Time in Patent Office: Days
• US Class Current: 604/236
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150221 Valves
• CPC Class Codes: A61B 5/150244 Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
• CPC Class Codes: A61B 5/150259 Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
• CPC Class Codes: A61B 5/150755 Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
• CPC Class Codes: A61B 5/150809 by audible feedback
• CPC Class Codes: A61B 5/150824 by visual feedback
• 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: A61B 5/417 the bone marrow
• CPC Class Codes: A61M 2005/3128 Incorporating one-way valves, e.g. pressure-relief or non-return valves

Abstract

A multi-port syringe with a fluid chamber in communication with an inlet valve assembly and an outlet valve assembly disposed intermediate the fluid chamber and the inlet valve assembly, the inlet valve assembly has an inlet valve member operable in an open position and a closed position, the inlet valve member being biased in a closed position by a resilient member. The outlet valve assembly has an outlet valve member operable between a closed position and an open position, and the outlet valve member is maintained in a closed position by a sealing member, and includes anchoring member engaging the outlet valve assembly. With the outlet valve member in the closed position, the inlet valve member is forced open by compressing the resilient member, thus allowing fluid into the chamber, and with the fluid chamber primed and the inlet valve member in a closed position, the outlet valve member is forced open by disengaging the anchoring member and defeating the sealing member to allow fluid discharge from the chamber.

Claims

1. A syringe having:

a fluid chamber;

an inlet valve assembly in communication with the fluid chamber; and

an outlet valve assembly disposed intermediate the fluid chamber and the inlet valve assembly;

the inlet valve assembly including;

an inlet valve member operable in an open position and a closed position;

a resilient member biasing the inlet valve member to its closed position;

the outlet valve assembly including;

an outlet valve member operable between a closed position and an open position; and

a sealing member; and

an anchoring member engaging the outlet valve assembly to maintain the outlet valve member in a closed position;

wherein;

with the outlet valve member in the closed position, the inlet valve member is placed into the open position upon compression of the resilient member to allow fluid flow into the chamber;

and the outlet valve member is operable by disengaging the anchoring means and defeating the sealing means when the fluid chamber is primed, while the inlet valve member is in a closed position;

thereby to allow discharge from the chamber.

2. The syringe of claim 1 wherein the inlet valve member is dimensioned to occupy a substantial volume of the first tubular portion and the second tubular portion while defining a first cavity between the female inlet valve member and the walls of the first tubular portion.

3. The syringe of claim 2 wherein the inlet valve member and the walls of the second tubular portion define a second cavity.

4. The syringe of claim 3 wherein the outlet valve assembly includes a third tubular portion with outlet opening and an activation opening, and disposed intermediate the second tubular portion and the chamber in a cruciform arrangement, and in communication therewith;

the third tubular portion for receiving an outlet valve member to operate the outlet opening between a closed position and an open position.

5. The syringe of claim 4 wherein the outlet valve member comprises:

a stem including a valve head adjacent to the activation opening, a valve base adjacent to the outlet opening, and a sleeve extending between valve head and the valve base;

the sealing member having;

a first annular ring extending from the sleeve, the first annular ring engaging the third tubular portion walls to seal the third tubular portion adjacent to the activation opening; and

a second annular ring extending from the sleeve, the second annular ring engaging the walls of the third tubular portion walls to seal the third tubular portion adjacent to the outlet opening;

the anchoring member having a plurality of lugs for engaging an annular recess in the walls of the third tubular portion to anchor the outlet valve member to maintain the outlet opening in the closed position;

wherein with the outlet opening in the closed position, the inlet valve member is driven towards the second tubular portion and the resilient member is compressed to open the inlet opening to allow fluid to flow via the first cavity and the second cavity into the chamber; and

wherein with the inlet opening in a closed position, the lugs are forced out of the annular recess such that a second annular ring completely disengages the walls of the second tubular portion to unseal the outlet opening and allow discharge from the chamber via the third tubular portion.

6. The syringe of claim 5 wherein the sleeve includes a plurality of longitudinally extending ribs which slidably engage the walls of the third tubular portion.

7. The syringe of claim 6 wherein the ribs are disposed between the first annular ring and the second annular ring, and the rings are equally spaced apart around the sleeve to define a plurality of third cavities between same, whereby the outlet valve member is dimensioned to occupy a large volume of the third tubular portion while allowing sufficient clearance between the walls of the third tubular portion for fluid flow via the third cavities without substantial impedance while preventing diminishing substantial fluid accumulation within the third tubular portion.

8. The syringe of claim 7 wherein the lugs are dimensioned such that they can not be forced back into the third outlet portion once the lugs have been forced out of the annular recess and the second annular ring completely disengages the walls of the second tubular.

9. The syringe of claim 8 wherein the first annular ring, the second annular ring, the ribs, and the lugs are formed integrally with the sleeve.

10. The syringe of claim 9 comprising a circuit for transmitting and receiving data related to the syringe or a patient, such as identification data, SKU, serial no., manufacturing date, expiry date, fluid data, patient data, health facility data, health practitioner data, medication data.

11. The syringe of claim 10 wherein the circuit for transmitting and receiving data comprises a transmitter, a receiver, a processor, a memory, an antenna and a power source.

12. The syringe of claim 11 wherein the circuit for transmitting and receiving data comprises radio identification (RFID) integrated circuit coupled to an antenna, wherein the RFID integrated circuit is passive, semi-passive, semi-active or active.

13. The syringe of claim 12 including at least one input/output device.

14. A syringe having:

a housing with a proximal end and a distal end;

an inlet valve assembly adjacent to the proximal end;

an outlet valve assembly adjacent to the proximal end;

the inlet valve assembly and the outlet valve assembly being angled with respect to one another;

the distal end of the housing having a chamber therein;

the inlet valve assembly having;

an inlet opening, a first tubular portion leading to which the inlet opening leads, and a second tubular portion;

an inlet valve member received by the first tubular portion and the second tubular portion, to operate the inlet opening between an open position and a closed position;

the inlet valve member being dimensioned to occupy a substantial volume of the first tubular portion and the second tubular portion while defining a first cavity between the inlet valve member and the walls of the first tubular portion and defining a second cavity between the inlet valve member and the walls of the second tubular portion; and

a resilient member for biasing the inlet valve member in a closed position;

the outlet valve assembly having;

a third tubular portion with an activation opening and an outlet opening, and disposed intermediate the second tubular portion and the chamber in a cruciform arrangement, and in communication therewith;

the third tubular portion for receiving an outlet valve member to operate the outlet opening between a closed position and an open position;

the outlet valve member being dimensioned to occupy a substantial volume of the third tubular portion while defining a third cavity between the outlet valve member and the walls of the third tubular portion;

the outlet valve member having;

a first annular ring engaging the walls of the third tubular portion to seal the third tubular portion adjacent to the activation opening; and

a second annular ring engaging the walls of the third tubular portion to seal the third tubular portion adjacent to the outlet opening;

a plurality of lugs for engaging an annular recess in the walls of the third tubular portion to anchor the outlet valve member to maintain the outlet opening in the closed position;

wherein with the outlet opening in the closed position, the inlet valve member is driven towards the second tubular portion and the resilient member is compressed to open the inlet opening to allow fluid to flow via the first cavity and the second cavity into the chamber; and

wherein with the inlet opening in a closed position, the lugs are forced out of the annular recess such that a second annular ring completely disengages the walls of the second tubular portion to unseal the outlet opening and allow discharge from the chamber via the third cavity.