Blood set component connection detection
First Claim
Patent Images
1. An extracorporeal blood treatment system comprising:
- an air pump apparatus;
one or more pressure transducers;
a controller operatively coupled to the air pump apparatus and the one or more pressure transducers;
a system housing to contain at least the air pump apparatus, the controller, and the one or more pressure transducers; and
an extracorporeal blood set comprising a plurality of components configured to be mounted on the system housing of the extracorporeal blood treatment system using connection apparatus, wherein the connection apparatus comprises one or more ports to connect the one or more pressure transducers contained in the system housing to one or more components of the plurality of components of the extracorporeal blood set when mounted on the system housing, wherein the controller is configured to;
control the air pump apparatus to provide air to at least one port of the one or more ports and within at least a portion of one or more components when mounted on the system housing using the connection apparatus; and
monitor air pressure resulting from the provision of air to the at least one port using at least one of the one or more pressure transducers to detect whether one or more components of the plurality of components are operatively connected to the system housing.
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Accused Products
Abstract
Extracorporeal blood treatment systems and methods to detect the connection of one or more components (e.g., of an extracorporeal blood set) thereto (e.g., to one or more pressure transducers contained in the system housing) by, for example, controlling an air pump apparatus to provide air to a connection port at which the component is to be connected and monitoring pressure resulting therefrom to detect whether the component is operatively connected (e.g., based on a detected change in the monitored pressure due to the increased resistance, based on a monitored rate of decay of pressure of injected air, etc.).
15 Citations
34 Claims
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1. An extracorporeal blood treatment system comprising:
an air pump apparatus; one or more pressure transducers; a controller operatively coupled to the air pump apparatus and the one or more pressure transducers; a system housing to contain at least the air pump apparatus, the controller, and the one or more pressure transducers; and an extracorporeal blood set comprising a plurality of components configured to be mounted on the system housing of the extracorporeal blood treatment system using connection apparatus, wherein the connection apparatus comprises one or more ports to connect the one or more pressure transducers contained in the system housing to one or more components of the plurality of components of the extracorporeal blood set when mounted on the system housing, wherein the controller is configured to; control the air pump apparatus to provide air to at least one port of the one or more ports and within at least a portion of one or more components when mounted on the system housing using the connection apparatus; and monitor air pressure resulting from the provision of air to the at least one port using at least one of the one or more pressure transducers to detect whether one or more components of the plurality of components are operatively connected to the system housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13)
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8. An extracorporeal blood treatment system comprising:
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an air pump apparatus; one or more pressure transducers; a controller operatively coupled to the air pump apparatus and the one or more pressure transducers; a system housing to contain at least the air pump apparatus, the controller, and the one or more pressure transducers; and an extracorporeal blood set comprising a plurality of components, wherein the plurality of components comprise a plurality of pressure measurement apparatus configured to be mounted on the system housing of the extracorporeal blood treatment system, wherein each of the plurality of pressure measurement apparatus comprises a pressure pod body configured to be mounted on the system housing and a diaphragm separating a fluid side cavity and a transducer side air cavity, wherein the transducer side air cavity is operatively connectable to at least one of the one or more pressure transducers such that pressure of fluid when present in the fluid side cavity is transferred to the transducer side air cavity via the diaphragm and measureable using the at least one pressure transducer, wherein the controller is configured to; control the air pump apparatus to provide a positive air flow from the air pump apparatus to at least one port of the one or more ports into the transducer side air cavity of a pressure measurement apparatus of the plurality of pressure measurement apparatus when mounted on the system housing or provide a negative air flow from at least one port of the one or more ports opposite the positive air flow; and monitor air pressure resulting from the provision of air by the air pump to detect whether the pressure measurement apparatus is operatively connected to the system housing based on a detected change in the pressure magnitude.
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14. A method of connecting one or more components of an extracorporeal blood set to a housing of an extracorporeal blood treatment system, wherein the system housing contains one or more pressure transducers and an air pump apparatus, and further wherein the system comprises connection apparatus comprising one or more ports to connect the one or more pressure transducers to the one or more components of the extracorporeal blood set, wherein the method comprises:
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providing an extracorporeal blood set comprising a plurality of components configured to be mounted on the system housing of the extracorporeal blood treatment system; instructing a user, via a user interface, to connect a first component of the plurality of components; providing air generated by the air pump apparatus to at least one of the one or more ports for use in determining whether the first component is operatively connected to the system housing via the at least one port such that a pressure associated with the first component is measureable using at least one of the one or more pressure transducers; and automatically instructing a user, via the user interface, to perform another task upon detecting that the first component is operatively connected. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of connecting one or more pressure measurement apparatus of an extracorporeal blood set to a housing of an extracorporeal system, wherein the system housing contains one or more pressure transducers and an air pump apparatus, and further wherein the system comprises connection apparatus comprising one or more ports to connect the one or more pressure transducers to the one or more pressure measurement apparatus of the extracorporeal blood set, wherein the method comprises:
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providing one or more pressure measurement apparatus of an extracorporeal blood set, wherein each of the one or more pressure measurement apparatus comprises a pressure pod body configured to be mounted on the system housing and a diaphragm separating a fluid side cavity and a transducer side air cavity, wherein the transducer side air cavity is operatively connectable to at least one pressure transducer of the one or more pressure transducers such that pressure of fluid when present in the fluid side cavity is transferred to the transducer side air cavity via the diaphragm and measureable by the at least one pressure transducer; providing air generated by the air pump apparatus to a port of the one or more ports and into the transducer side air cavity of a first pressure measurement apparatus when mounted on the system housing; and monitoring air pressure resulting from the provision of air to the port to detect whether the first pressure measurement apparatus is operatively connected to the system housing based on a detected rise in the monitored pressure. - View Dependent Claims (25, 26, 27, 28, 29)
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30. A method of connecting an open line element of an extracorporeal blood set to a housing of an extracorporeal system, wherein the system housing contains one or more pressure transducers and an air pump apparatus, and further wherein the system comprises connection apparatus comprising at least one port to connect the open line element to at least one pressure transducer of the one or more pressure transducers, wherein the method comprises:
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providing at least one open line element configured to be mounted on the system housing, wherein the open line element is operatively connectable to at least one pressure transducer of the one or more pressure transducers such that a pressure therein is measureable using the at least one pressure transducer; controlling injection of pressurized air to the at least one port of the one or more ports using the air pump apparatus and within the open line element when mounted on the system housing; and monitoring a rate of decay of pressure of the injected air to determine whether the open line element is operatively connected to the system housing. - View Dependent Claims (31, 32, 33, 34)
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Specification