Disposable components for fluid line autoconnect systems and methods

• US 10,172,988 B2
• Filed: 12/11/2017
• Issued: 01/08/2019
• Est. Priority Date: 01/23/2008
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: McGill, David W., Scarpaci, Jacob W., Dale, James D., Helmore, Simon C., Demers, Jason A.
• Primary Examiner(s): Patel, Shefali
• Application Number:
  US15/837,182
• Publication Number:
  US 20180104466A1
• Time in Patent Office: 393 Days
• CPC Class Codes: A61M 1/14 Dialysis systems; Artificial kidneys; Blood oxygenators semi-permeable membranes characterised by the material, manufacturing processes therefor B01D71/00 ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
• CPC Class Codes: A61M 1/1522 the interface being evacuated interfaces to enhance contact
• CPC Class Codes: A61M 1/1524 the interface providing means for actuating on functional elements of the cassette, e.g. plungers
• CPC Class Codes: A61M 1/153 the cassette being adapted for heating or cooling the treating fluid, e.g. the dialysate or the treating gas
• CPC Class Codes: A61M 1/155 with treatment-fluid pumping means or components thereof
• CPC Class Codes: A61M 1/1561 at least one cassette surface or portion thereof being flexible, e.g. the cassette having a rigid base portion with preformed channels and being covered with a foil
• CPC Class Codes: A61M 1/1565 Details of valves
• CPC Class Codes: A61M 1/159 specially adapted for peritoneal dialysis
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1601 Control or regulation
• CPC Class Codes: A61M 1/1623 Disposition or location of membranes relative to fluids
• CPC Class Codes: A61M 1/1629 with integral heat exchanger
• CPC Class Codes: A61M 1/1631 having non-tubular membranes, e.g. sheets
• CPC Class Codes: A61M 1/166 Heating for sterilisation A61M1/1686
• CPC Class Codes: A61M 1/1694 with recirculating dialysing liquid
• CPC Class Codes: A61M 1/28 Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
• CPC Class Codes: A61M 1/281 Instillation other than by gravity
• CPC Class Codes: A61M 1/282 Operational modes
• CPC Class Codes: A61M 1/288 Priming priming in extracorporeal blood circuits A61M1/3643
• CPC Class Codes: A61M 2039/1066 having protection means, e.g. sliding sleeve to protect connector itself, shrouds to protect a needle present in the connector, protective housing, isolating sheath
• CPC Class Codes: A61M 2205/12 : with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/121 : interface between cassette and base
• CPC Class Codes: A61M 2205/122 : using evacuated interfaces to enhance contact
• CPC Class Codes: A61M 2205/123 : with incorporated reservoirs
• CPC Class Codes: A61M 2205/127 : with provisions for heating or cooling
• CPC Class Codes: A61M 2205/128 : with incorporated valves
• CPC Class Codes: A61M 2205/13 : with means for the detection of operative contact with patient, e.g. lip sensor
• CPC Class Codes: A61M 2205/14 : Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/3306 : Optical measuring means
• CPC Class Codes: A61M 2205/3331 : Pressure; Flow
• CPC Class Codes: A61M 2205/3334 : Measuring or controlling the flow rate
• CPC Class Codes: A61M 2205/3379 : Masses, volumes, levels of fluids in reservoirs, flow rates
• CPC Class Codes: A61M 2205/36 : related to heating or cooling
• CPC Class Codes: A61M 2205/502 : User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/6036 : characterised by physical shape, e.g. array of activating switches
• CPC Class Codes: A61M 2209/08 : Supports for equipment
• CPC Class Codes: A61M 39/1011 : Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 39/105 : Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes multi-channel connectors in general F16L37/56
• CPC Class Codes: A61M 39/20 : Closure caps or plugs for connectors or open ends of tubes
• CPC Class Codes: A61M 39/28 : Clamping means for squeezing flexible tubes, e.g. roller clamps tube strippers A61M1/83
• CPC Class Codes: A61M 39/281 : Automatic tube cut-off devices, e.g. squeezing tube on detection of air
• CPC Class Codes: A61M 5/16809 : by repeated filling and emptying of an intermediate volume pressure infusion using positive displacement pumps A61M5/142
• CPC Class Codes: A61M 5/16813 : by controlling the degree of opening of the flow line
• CPC Class Codes: A61M 5/16827 : controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: F04B 43/0054 : particularities of the flexible members
• CPC Class Codes: F04B 43/02 : having plate-like flexible members, e.g. diaphragms F04B43/14 takes precedence
• CPC Class Codes: F04B 43/073 : the actuating fluid being controlled by at least one valve
• CPC Class Codes: F04B 43/08 : having tubular flexible members F04B43/12 takes precedence
• CPC Class Codes: F04B 43/086 : with two or more tubular flexible members in parallel F04B43/1136 takes precedence
• CPC Class Codes: F04B 53/22 : Arrangements for enabling ready assembly or disassembly
• CPC Class Codes: G16H 20/40 : relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/63 : for local operation
• CPC Class Codes: Y02A 90/10 : Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

Components for a medical infusion fluid handling system, such as an APD system, in which one or more lines (such as solution lines), spikes or other connection ports may be automatically capped and/or de-capped. This feature may provide advantages, such as a reduced likelihood of contamination since no human interaction is required to de-cap and connect the one or more lines, the spikes or the other connection ports. For example, a fluid handling cassette may include one or more caps that cover a corresponding spike and include a raised and/or recessed feature to assist in removal of the one or more caps from the cassette. A solution line cap may include a hole and a recess, a groove or other feature to engage with a spike cap and enable removal of the spike cap.

Claims

1. A fluid handling cassette for use in a peritoneal dialysis system, the cassette comprising:

a generally planar body having first and second pump chambers each formed as a depression in a first side of the body and a plurality of flowpaths for a fluid;

a patient line port located at a first end of the body arranged for connection to a patient line, the patient line port being in valved fluid communication with a first opening of the first pump chamber and a first opening of the second pump chamber via a first flowpath;

a drain line port located at the first end of the body arranged for connection to a drain line, the drain line port being in valved fluid communication with a second opening of the first pump chamber and a second opening of the second pump chamber via a second flowpath;

a plurality of solution line ports located at a second end of the body opposite the first end, each of the solution line ports being in valved fluid communication with the first opening of each of the first and second pump chambers via the first flowpath; and

a flexible membrane attached to the first side of the body over the first and second pump chambers, portions of the membrane over the first and second pump chambers being arranged to be movable for movement of the fluid in the pump chambers.

2. The fluid handling cassette of claim 1, further comprising a heater line port located at the first end of the body arranged for connection to a heater bag line, the heater line port being in valved fluid communication with the second opening of each of the first and second pump chambers via the second flowpath.

3. The fluid handling cassette of claim 1, wherein the plurality of solution line ports are each connected to corresponding solution line spikes on the second end of the body, said solution line spikes configured for connection to solution lines.

4. The fluid handling cassette of claim 3, further comprising a skirt arranged around each of the solution line spikes.

5. The fluid handling cassette of claim 4, wherein each skirt is arranged to receive an end of a corresponding spike cap.

6. A fluid handling cassette for use in a medical infusion system, the cassette comprising:

a generally planar body having first and second pump chambers each formed as a depression in a first side of the body and a plurality of flowpaths for a fluid;

a patient line port located at a first end of the body arranged for connection to a patient line, the patient line port being in valved fluid communication with a first opening of the first pump chamber and a first opening of the second pump chamber via a first flowpath;

a drain line port located at the first end of the body arranged for connection to a drain line, the drain line port being in valved fluid communication with a second opening of the first pump chamber and a second opening of the second pump chamber via a second flowpath;

a plurality of solution line ports located at a second end of the body opposite the first end, each of the solution line ports being in valved fluid communication with the first opening of each of the first and second pump chambers via the first flowpath; and

a flexible membrane attached to the first side of the body over the first and second pump chambers, portions of the membrane over the first and second pump chambers being arranged to be movable for movement of the fluid in the pump chambers.

7. The fluid handling cassette of claim 6, further comprising a heater line port located at the first end of the body arranged for connection to a heater bag line, the heater line port being in valved fluid communication with the second opening of each of the first and second pump chambers via the second flowpath.

8. The fluid handling cassette of claim 6, wherein the plurality of solution line ports are each connected to corresponding solution line spikes on the second end of the body, said solution line spikes configured for connection to solution lines.

9. The fluid handling cassette of claim 8, further comprising a skirt arranged around each of the solution line spikes.

10. The fluid handling cassette of claim 9, wherein each skirt is arranged to receive an end of a corresponding spike cap.