High-flow port and infusion needle systems

Patent metadata

Field	Value
Publication number	US-2016199560-A1
Application number	US-201514593502-A
Country	US
Kind code	A1
Filing date	Jan 9, 2015
Priority date	Jan 9, 2014
Publication date	Jul 14, 2016
Grant date	—

Abstract

The present invention relates to a multi-reservoir port, catheter and non-coring needle systems that support high-flow applications such as hemodialysis and apheresis. In particular, the present invention relates to improvements to each of these systems to provide optimal flow rates and septum life with minimal intraluminal pressure; both individually and in combination.

First claim

What is claimed is:

1 . A multi-reservoir port system, comprising:
a vascular access port, including:
a housing defining first and second reservoirs,
a first septum mounted within the housing sealing the first reservoir,
a second septum mounted within the housing sealing the second reservoir,
an inlet stem having an inlet lumen in fluid communication with the first reservoir, and
an outlet stem having an outlet lumen in fluid communication with the second reservoir; and
a dual-lumen catheter having a proximal end, a distal end, and first and second lumens extending therebetween; wherein the inlet stem is dimensioned to receive the first lumen at the proximal end of the catheter; and wherein the outlet stem is dimensioned to receive the second lumen at the proximal end of the catheter.

2 . The assembly of claim 1 , wherein the first and second septa comprise an elastomeric material.

3 . The assembly of claim 1 , wherein the first and second septa comprise a multi-durometer elastomeric material.

4 . The assembly of claim 3 , wherein the multi-durometer elastomeric material includes a first layer with a first durometer and a second layer with a second durometer.

5 . The assembly of claim 4 , wherein the durometer of the first layer is less than the durometer of the second layer.

6 . The assembly of claim 4 , wherein the first layer is disposed above the second layer.

7 . The assembly of claim 4 , wherein the first layer surrounds the second layer.

8 . The assembly of claim 4 , wherein the first layer is disposed above and below the second layer.

9 . The assembly of claim 4 , wherein the thickness of the second layer is greater than the thickness of the first layer.

10 . The assembly of claim 4 , wherein the thickness of the first and second layers is substantially the same.

11 . A multi-reservoir port and needle system, comprising:
a vascular access port, including:
a housing defining first and second reservoirs,
a first septum mounted within the housing sealing the first reservoir,
a second septum mounted within the housing sealing the second reservoir,
an inlet stem having an inlet lumen in fluid communication with the first reservoir, and
an outlet stem having an outlet lumen in fluid communication with the second reservoir; and
a needle assembly, including:
at least one infusion needle; and
at least two aspiration needles;
wherein the infusion needle is configured to penetrate the second septum of the vascular access port, and the at least two aspiration needles are configured to penetrate the first septum of the vascular access port.

12 . The assembly of claim 11 , wherein the at least one infusion needle and at least two aspiration needles are non-coring.

13 . The assembly of claim 11 , wherein the at least one infusion needle and at least two aspiration needles are at least 19 gauge.

14 . The assembly of claim 11 , wherein each of the at least two aspiration needles include openings that face in opposite directions.

15 . The assembly of claim 11 , wherein the at least two aspiration needles are attached to each other.

16 . The assembly of claim 11 , wherein the at least two aspiration needles are in fluid communication with the first reservoir.

17 . The assembly of claim 11 , wherein the infusion needle is in fluid communication with the second reservoir.

18 . The assembly of claim 11 , wherein the at least one infusion needle and at least two aspiration needles are in fluid communication with a blood circulation apparatus.

19 . The assembly of claim 28 , wherein the blood circulation apparatus includes a dialysis machine or an apheresis machine.

20 . A method of performing apheresis, comprising:
accessing the aspiration reservoir of a multi-reservoir port with an aspiration needle assembly; accessing the infusion reservoir of a multi-reservoir port with an infusion needle assembly; flowing fluid from the aspiration reservoir through the aspiration needle assembly to an apheresis machine; and flowing fluid from the apheresis machine to the infusion reservoir through the infusion needle assembly.

21 . The method of claim 20 , wherein the needles of the aspiration needle assembly and infusion needle assembly are non-coring 19 gauge needles.

Assignees

• Casiello Damon
• Leblanc Kenneth
• Kewley Marissa
• Girard Mark
• Angiodynamics Inc

Inventors

• Casiello Damon
• Leblanc Kenneth
• Kewley Marissa
• Girard Mark

Classifications

• A61M1/3659 Primary

  Cannulae pertaining to extracorporeal circulation · CPC title

• A61M39/0208

  Subcutaneous access sites for injecting or removing fluids (transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276) · CPC title

• A61M39/04

  having pierceable self-sealing members · CPC title

• A61M1/3496 Primary

  Plasmapheresis; Leucopheresis; Lymphopheresis (A61M1/3472 takes precedence) · CPC title

• A61M1/3653

  Interfaces between patient blood circulation and extra-corporal blood circuit · CPC title