Extracorporeal blood treatment apparatus
First Claim
1. An extracorporeal blood treatment apparatus comprising:
- a blood treatment device having a blood chamber and a fluid chamber separated from one another by a semipermeable membrane;
an extracorporeal blood circuit having a removal line for sending blood from a patient to the blood chamber, and a return line for returning the blood from the blood chamber to the patient;
a fluid circuit connected to the fluid chamber;
one or more sensors for measuring a value of a parameter in the extracorporeal blood circuit and in the fluid circuit;
a user interface provided with a screen and connected to the one or more sensors;
selecting means for enabling a user to directly set, via the screen, a first safety value and a second safety value, the first safety value being greater than a reference value of the parameter, the second safety value being less than the reference value, the reference value being a measured value of the parameter, the selecting means comprising input means for modifying the first safety value and/or the second safety value, the input means comprising a first button; and
a control unit configured to selectively disable at least part of the selecting means if one of the safety values is reached;
wherein the apparatus is configured such that the first button can be activated a plurality of times in succession and, at each activation, the first safety value and the second safety value are simultaneously modified by a predetermined quantity visually on the screen;
wherein, when the first button is activated and the first safety value and the second safety value are simultaneously modified, the first safety value is increased by a predetermined quantity and the second safety value is decreased by a predetermined quantity; and
wherein the input means further comprises a second button, a third button and a fourth button, wherein, when the second button is activated, the first safety value is decreased by a predetermined quantity and the second safety value is increased by a predetermined quantity, and wherein, when the third button is activated, the first safety value is decreased by a predetermined quantity and the second safety value is decreased by a predetermined quantity, and wherein, when the fourth button is activated, the first safety value is increased by a predetermined quantity and the second safety value is increased by a predetermined quantity.
3 Assignments
0 Petitions
Accused Products
Abstract
In an extracorporeal blood treatment apparatus, a user interface (22) has a touch screen for displaying two bar-graphs (24) of pressures in the extracorporeal blood circuit. By touching a bar-graph three alpha-numeric values appear: a reference value (29), an upper safety interval (28) of the pressure, comprised between an upper limit value and the reference valve (29), and a lower interval value (30), comprised between the reference value and a lower limit value. The reference value is a measured pressure value. Four buttons also appear on the display for input of modifications to the upper interval and the lower interval. The setting of the total pressure safety interval is simple and immediate.
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Citations
10 Claims
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1. An extracorporeal blood treatment apparatus comprising:
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a blood treatment device having a blood chamber and a fluid chamber separated from one another by a semipermeable membrane; an extracorporeal blood circuit having a removal line for sending blood from a patient to the blood chamber, and a return line for returning the blood from the blood chamber to the patient; a fluid circuit connected to the fluid chamber; one or more sensors for measuring a value of a parameter in the extracorporeal blood circuit and in the fluid circuit; a user interface provided with a screen and connected to the one or more sensors; selecting means for enabling a user to directly set, via the screen, a first safety value and a second safety value, the first safety value being greater than a reference value of the parameter, the second safety value being less than the reference value, the reference value being a measured value of the parameter, the selecting means comprising input means for modifying the first safety value and/or the second safety value, the input means comprising a first button; and a control unit configured to selectively disable at least part of the selecting means if one of the safety values is reached;
wherein the apparatus is configured such that the first button can be activated a plurality of times in succession and, at each activation, the first safety value and the second safety value are simultaneously modified by a predetermined quantity visually on the screen;
wherein, when the first button is activated and the first safety value and the second safety value are simultaneously modified, the first safety value is increased by a predetermined quantity and the second safety value is decreased by a predetermined quantity; and
wherein the input means further comprises a second button, a third button and a fourth button, wherein, when the second button is activated, the first safety value is decreased by a predetermined quantity and the second safety value is increased by a predetermined quantity, and wherein, when the third button is activated, the first safety value is decreased by a predetermined quantity and the second safety value is decreased by a predetermined quantity, and wherein, when the fourth button is activated, the first safety value is increased by a predetermined quantity and the second safety value is increased by a predetermined quantity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification