CA2533089A1 - A system for performing fluid administration - Google Patents

A system for performing fluid administration Download PDF

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Publication number
CA2533089A1
CA2533089A1 CA002533089A CA2533089A CA2533089A1 CA 2533089 A1 CA2533089 A1 CA 2533089A1 CA 002533089 A CA002533089 A CA 002533089A CA 2533089 A CA2533089 A CA 2533089A CA 2533089 A1 CA2533089 A1 CA 2533089A1
Authority
CA
Canada
Prior art keywords
previous
liquid
anyone
pump
patient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002533089A
Other languages
French (fr)
Other versions
CA2533089C (en
Inventor
Frederic Neftel
Florent Junod
Didier Vecten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Debiotech SA
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2533089A1 publication Critical patent/CA2533089A1/en
Application granted granted Critical
Publication of CA2533089C publication Critical patent/CA2533089C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
    • A61M1/152—Details related to the interface between cassette and machine
    • A61M1/1524—Details related to the interface between cassette and machine the interface providing means for actuating on functional elements of the cassette, e.g. plungers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
    • A61M1/154—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit with sensing means or components thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
    • A61M1/155—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit with treatment-fluid pumping means or components thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
    • A61M1/156—Constructional details of the cassette, e.g. specific details on material or shape
    • A61M1/1561—Constructional details of the cassette, e.g. specific details on material or shape 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
    • A61M1/156—Constructional details of the cassette, e.g. specific details on material or shape
    • A61M1/1565—Details of valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/15—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit
    • A61M1/159—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with a cassette forming partially or totally the flow circuit for the treating fluid, e.g. the dialysate fluid circuit or the treating gas circuit specially adapted for peritoneal dialysis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/128—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media

Abstract

The invention concerns a system and a method of use of said system for performing fluid administration on a patient, the system comprising : a liqu id pump (1), a liquid distribution system (2) connected to said pump (1) in suc h a way that liquid can flow from the liquid distribution system (2) to the pu mp (1) and vice versa, liquid supply means (3) for supplying liquid to a patien t (4) via said liquid distribution system (2) and said pump (1), a patient conduit (5) adapted for connecting said liquid distribution system (2) to a patient (4), the system being characterized by the fact that said liquid pum p (1) is unidirectional and that said liquid distribution system (2) comprises switching means designed to alternatively connect the pump enter line (56) with the supply means (3) or with the patient conduit (5).

Claims (49)

1. ~A system for performing fluid administration on a patient comprising - a single liquid pump (1), - a liquid distribution system (2) connected to said pump (1) in such a way that liquid can flow from the liquid distribution system (2) to the pump (1) via a pump enter line (56) and vice versa via a pump exit line (57), - liquid supply means (3) for supplying liquid to a patient (4) via said liquid distribution system (2) and said pump (1), - a patient conduit (5) adapted for connecting said liquid distribution system (2) to a patient (4), characterized by the fact that said liquid pump (1) is unidirectional and that said liquid distribution system (2) comprises switching means designed to alternatively connect the pump enter line (56) with the supply means (3) or with the patient conduit (5).
2. ~A system according to the previous claim furthermore comprising a drain line (25), said switching means being also designed to alternatively connect the pump exit line (57) with the drain line (25) or with the patient conduit (5).
3. ~A system according to claim 1 or 2 wherein the liquid pump (1) is a peristaltic pump.
4. ~A system according to the previous claim wherein the peristaltic pump is rotatable.
5. ~A system according to anyone of the previous claims wherein said liquid distribution system (2) comprises two distinct hub chambers (7,8), the first hub chamber (7) including at least one liquid supply port with dedicated valve means (9), one patient port with dedicated valve means (10) and one pump inlet (26), the second hub chamber (8) including at least, one patient port (18) or warmer port (16) with dedicated valve means and one pump outlet (27), said system furthermore comprising control means arranged to close said patient port (10) of the first hub chamber (7) when said liquid supply port (9) is open and vice versa.
6. ~System according to the previous claim wherein said second hub chamber (8) furthermore includes at least one drain port with dedicated valve means (11), said control means being also arranged to close said patient port (18) of the second hub chamber (8) when said drain port (11) is open and vice~
versa.
7. ~A system according to claim 5 or 6 wherein said liquid distribution system (2) only includes two hub chambers (7,8).
8. ~A system according to anyone of the previous claims furthermore comprising a warmer system (28), a cavity (17) including a warmer port(19) and a patient port (16), said patient port (18) of the second hub chamber (8) being connected to said warmer port (19) via said warmer system (28).
9. ~A system according to the previous claim wherein said warmer system (28) is a warmer in-line.
10.~A system according to the previous claim wherein said warmer in-line comprises a warming plate contained therein, such warming plate being covered by a warming pouch like a sock.
11.~A system according to the previous claim wherein said warming pouch is composed of a liquid channel which forces the liquid to be maintained within such warmer for a certain duration at a given flow rate.
12.~A system according to anyone of the previous claims wherein said first hub chamber (7) includes several liquid supply ports with respective valve means (9).
13.~A system according to the previous claim wherein said liquid supply ports (9) are connected to respective liquid supply means having each a different kind of liquid.
14.~A system according to anyone of the previous claims wherein said liquid pump (1) is composed of a tubing and rolling surface on which the tubing is compressed once the cartridge is inserted into a pumping device containing rollers.
15.~A system according to the previous claim where said rollers (22) are of a conical shape in such a way as to be self inserted in the pump race, i.e.
without any other mechanism.
16. ~A system according to claim 14 where said rollers are of a spherical shape.
17.~A system according to anyone of the previous claims wherein said liquid pump (1) and said liquid distribution system (2) are fixed together to form a single cartridge.
18.~A system according to the previous claim wherein said liquid pump (1) is fixed to said liquid distribution system (2) by vibration attenuation means in order to minimize the vibration on the liquid distribution system (2) when the pump is operating.
19.~A system according to anyone of the previous claims wherein all hub chambers, including said ports and ports, are made within one single part.
20.~A system according to the previous claim wherein said single part is an~
injected part of plastic material.
21.~A system according to anyone of the previous claims wherein each hub chamber (7,8) is closed with an upper wall made of a flexible membrane (13), said membrane including valve elements (39) situated above each of said port or port with valve means, said valve elements (39) being designed to close said port or port when the membrane (13) moves downwardly.
22.~A system according to the previous claim wherein said membrane is molded.
23.~A system according to the previous claim wherein said membrane is made of silicone.
24.~A system according to the previous claim wherein said membrane includes liquid tight joints.
25.~A system according to anyone of the previous claims wherein said liquid distribution system includes liquid tight joints arranged in such a manner~
that they allow a liquid tight connection between said liquid distribution system and a membrane situated on it.
26.~A system according to anyone of claims 21 to 24 wherein said membrane contains protruding elements designed for a liquid tight connection between said hub chambers.
27.~A system according to claim 21 wherein each of said valve elements (39) is designed to be clipped to an actuator (34), e.g. an electromagnetic actuator or a magnet, arranged above said membrane (13).
28.~A system according to the previous claim wherein each of said valve elements comprises a cavity designed to receive and hold the plunger of an actuator, said cavity having an height which substantially corresponds to at least the valve displacement.
29.~A system according to anyone of claim 21 to 28 wherein said membrane (13) is press-fitted along its external border to the liquid distribution system, the membrane (13) being furthermore held by a frame (14).
30.~A system according to anyone of claim 21 to 29 wherein said membrane (13) contains a portion (15) which is forming part of a pressure sensor.
31.~A system according to the previous claim wherein the active area of said pressure sensor is designed to be more flexible than the remaining area.
32.~A system according to claim 30 or 31 wherein said pressure sensor has the shape of a disc of which the periphery is gripped, said disc furthermore comprising an annular ply.
33.~A system according to anyone of claims 30 to 31 wherein said pressure sensor is situated on the patient line, independently from said hub chambers.
34.~A system according to anyone of claims 30 to 33 furthermore comprising a second pressure sensor, said second pressure sensor being in connection with the first hub chamber.
35.~A system according to anyone of the previous claims wherein said liquid distribution system includes an air sensor situated on the patient conduit side.
36.~A system according to anyone of the previous claims comprising a cartridge loading mechanism which allows a tight connection between the membrane and the valves and the liquid distribution system.
37.~A liquid distribution system (2) for a system performing fluid administration on a patient as defined in anyone of the previous claims.
38,~A pressure sensor for a system for performing fluid administration on a patient as defined in anyone of claims 30 to 36.
39.~A system according to anyone of the previous claims furthermore comprising a window for detecting correct positioning of the tube.
40. Method of use of the system as defined in anyone of the previous claims wherein said patient port (10) is closed when said liquid supply port (9) is open and vice versa.
41. Method according to the previous claim wherein the pressure is always maintained positive with respect to the drain.
42. Method according to claim 40 or 41 wherein said liquid is always pumped in the same direction.
43. Method according to anyone of claims 40 to 42 consisting of sensing the liquid pressure entering and exiting the liquid distribution system and, if necessary, correct the pump flow rate in accordance with the pressure difference.
44. Method according to anyone of claims 40 to 43 consisting in regulating the pump flow rate according to a known predetermined alteration of the flow rate by aging of the tubing.
45. ~Method according to anyone of claims 40 to 44 wherein the drain phase is a function of the drain speed, said drain phase being ended when the speed is reaching a certain value based on the patient peritoneal cavity pressure measurement.
46. ~Method according to anyone of claims 40 to 45 wherein the peritoneal volume filled during a cycle is a function of the intro-peritoneal pressure.
47. ~Method according to the previous claim wherein the peritoneal cavity is partially emptied as soon as the pressure has reached a predefined threshold.
48. ~Method according to anyone of claims 40 to 47 consisting in the use of a low Natrium concentration liquid for the last exchange cycle to improve ultra-filtration.
49. ~Use of a system as defined in anyone of the previous claims for peritoneal dialysis.
CA2533089A 2003-07-31 2004-08-02 A system for performing fluid administration Expired - Fee Related CA2533089C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH0300528 2003-07-31
CHPCT/CH03/00528 2003-07-31
PCT/CH2004/000481 WO2005009512A1 (en) 2003-07-31 2004-08-02 A system for performing fluid administration

Publications (2)

Publication Number Publication Date
CA2533089A1 true CA2533089A1 (en) 2005-02-03
CA2533089C CA2533089C (en) 2012-04-24

Family

ID=34085303

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2533089A Expired - Fee Related CA2533089C (en) 2003-07-31 2004-08-02 A system for performing fluid administration

Country Status (12)

Country Link
US (1) US7497840B2 (en)
EP (1) EP1648537B1 (en)
JP (1) JP4589320B2 (en)
CN (1) CN100581598C (en)
AT (1) ATE506089T1 (en)
AU (1) AU2004259150B2 (en)
CA (1) CA2533089C (en)
DE (1) DE602004032347D1 (en)
ES (1) ES2364353T3 (en)
IL (1) IL173444A (en)
RU (1) RU2006104658A (en)
WO (1) WO2005009512A1 (en)

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Also Published As

Publication number Publication date
AU2004259150B2 (en) 2010-05-20
DE602004032347D1 (en) 2011-06-01
IL173444A (en) 2011-11-30
CN1829544A (en) 2006-09-06
US20060189923A1 (en) 2006-08-24
RU2006104658A (en) 2007-09-10
CA2533089C (en) 2012-04-24
US7497840B2 (en) 2009-03-03
EP1648537A1 (en) 2006-04-26
EP1648537B1 (en) 2011-04-20
ATE506089T1 (en) 2011-05-15
JP4589320B2 (en) 2010-12-01
CN100581598C (en) 2010-01-20
WO2005009512A1 (en) 2005-02-03
JP2007500523A (en) 2007-01-18
IL173444A0 (en) 2006-06-11
AU2004259150A1 (en) 2005-02-03
ES2364353T3 (en) 2011-08-31

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