Medical treatment system and methods using a plurality of fluid lines

• US 9,248,225 B2
• Filed: 01/23/2009
• Issued: 02/02/2016
• Est. Priority Date: 01/23/2008
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Demers, Jason A., McGill, David W., Scarpaci, Jacob W., Dale, James D., Bodwell, Jesse T., Wang, Tien-Shoe
• Primary Examiner(s): Sirmons, Kevin C
• Assistant Examiner(s): PATEL, SHEFALI DILIP
• Application Number:
  US12/864,357
• Publication Number:
  US 20110092893A1
• Time in Patent Office: 2,566 Days
• Field of Search: 604/27, 604/29
• US Class Current: 1/1
• 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

A medical treatment system, such as a peritoneal dialysis system, may include a control and other features to enhance patient comfort and ease of use. For example, a cycler device may include a heater bag receiving section and a lid mounted to cover and uncover the heater bag receiving section, potentially enabling faster heating of a dialysate. A user interface may be moveable to be received into the receiving section and covered by the lid, if desired. The system may detect anomalous conditions, such as tilting of a housing of the system, and automatically recover without terminating a treatment. The system may include noise reduction features, such as porting pneumatic outputs to a common chamber, and others. The system may also automatically detect any one of several different solution lines connected to the system, and control operation accordingly, e.g., to mix solutions provided by two or more lines and form a needed dialysate solution. A cassette control surface may be arranged to have one or more ports that can detect a presence of a liquid, e.g., to identify if a cassette is leaking or has otherwise been compromised.

Claims

1. A peritoneal dialysis system including:

a cycler device comprising a receiving section for a fluid handling cassette suitable for controlling delivery of a dialysate to a peritoneal cavity of a patient, the cycler device having a housing that encloses at least a control system to control movement of a fluid in the fluid handling cassette when installed and a controller, and has a user interface receiving section located at a top of the housing, the user interface receiving section comprising a fluid heater, including a heater bag receiving section arranged to receive a heater bag and heat a fluid in the heater bag;

a lid that is movably mounted to the housing and is movable between an open position in which the user interface receiving section and the heater bag receiving section are exposed, and a closed position in which the lid covers the user interface receiving section and the heater bag receiving section; and

a user interface separate from the lid that is movably mounted to the housing and being movable between a first position in which the interface is received in the user interface receiving section, and a second position in which the interface is located out of the user interface receiving section to interact with a user,

wherein with the user interface in the first position, the lid is movable between the open and closed positions such that the lid conceals the user interface in the closed position, and wherein with the user interface in the second position, the lid is movable between the open and closed positions such that the lid covers the heater bag receiving section in the closed position.

2. The system of claim 1, wherein the user interface is arranged to provide a display of information to the user and/or to receive an input from the user.

3. The system of claim 1, wherein the lid is moveable between the open and closed positions with the heater bag in the heater bag receiving section and the user interface in the second position.

4. The system of claim 1, wherein the lid is arranged to help trap heat in the heater bag receiving section when the lid is in the closed position.

5. The system of claim 1, wherein the user interface includes a touch screen.

6. The system of claim 1, further comprising:

the fluid handling cassette having a heater bag port attached to a heater bag line, a patient port attached to a patient line, and at least one pump chamber to move a fluid in the patient line and the heater bag line; and

the heater bag attached to the heater bag line.

7. The system of claim 6, wherein the fluid handling cassette includes a plurality of solution line ports that fluidly communicate with the at least one pump chamber, the system further comprising:

a plurality of solution lines each engaged with a respective solution line port of the plurality of solution line ports on the fluid handling cassette, each of the solution lines being arranged to provide a liquid suitable for providing the dialysate to the patient.

8. The system of claim 7, wherein the cycler device is arranged to control the at least one pump chamber to move the liquid provided by at least one solution line of the plurality of solution lines into the heater bag.

9. The system of claim 8, wherein the cycler device is arranged to control the at least one pump chamber to move the liquid from the heater bag into the peritoneal cavity of the patient.

10. The system of claim 9, further comprising a door mounted to the housing and moveable between open and closed positions, the door being arranged to receive the plurality of solution lines and the fluid handling cassette when in the open position.

11. The system of claim 1, wherein the lid covers the user interface when the lid is in the closed position and the user interface is in the user interface receiving section.

12. The system of claim 1, wherein the lid is mounted to the housing at a top, rear section of the housing and the user interface is pivotally mounted to the housing at a top, front section of the housing.