Medical apparatus

• US 8,075,509 B2
• Filed: 08/25/2005
• Issued: 12/13/2011
• Est. Priority Date: 08/25/2005
• Status: Active Grant

• Current Assignee: Gambro Lundia AB (Baxter International Inc.)
• Original Assignee: Gambro Lundia AB (Baxter International Inc.)
• Inventors: Molducci, Fabrizio, Roncadi, Fabio, Rovatti, Paolo
• Primary Examiner(s): DEAK, LESLIE R
• Application Number:
  US12/064,401
• Publication Number:
  US 20080249377A1
• Time in Patent Office: 2,301 Days
• Field of Search: 604/4.01, 604/5.01, 604/5.04, 604/6.09, 604/6.1, 604/6.11, 210/645, 210/646
• US Class Current: 604/6.09
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1601 Control or regulation
• CPC Class Codes: A61M 2205/3317 Electromagnetic, inductive or dielectric measuring means
• CPC Class Codes: A61M 2205/3324 PH measuring means
• CPC Class Codes: A61M 2205/3368 Temperature
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: G06F 3/04895 Guidance during keyboard input operation, e.g. prompting
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

A medical apparatus (1) comprises a user interface (30), a number of sensors (16,27,21,22,29) and a control system (18) programmed for displaying on the user interface screen (31) a number of indicia (37), each relating to a corresponding parameter and comprising an indicium border (45) delimiting an indicium selection area (45a); the control system allows selection of an indicium for identifying the parameter a user intends to modify, allows setting of a new set value for the selected parameter; the control system also receives from the sensors (29) a measure of the actual value for the parameter and displays on the indicium selection area (45a) of the indicium both the actual value and the set value for the same parameter. The programming software for the control system is also disclosed.

Claims

1. Medical apparatus comprising:

at least a user interface for enabling setting of a plurality of parameters pertinent to operation of said apparatus or pertinent to a process to be performed by said apparatus, the user interface including at least a screen;

a number of sensors for detecting actual values of said parameters;

a control system for controlling operation of said medical apparatus, the control system being connected to said sensors, being responsive to actions by a user on said user interface, and being programmed for executing the following steps;

displaying on said screen a number of indicia, each relating to a corresponding parameter and comprising an indicium border delimiting an indicium selection area;

allowing selection of an indicium among said number for identifying the parameter a user intends to modify,

allowing setting of a new set value for said parameter;

receiving from at least one of the sensors a measure of the actual value for said parameter;

displaying on the indicium selection area of the indicium both the actual value and the set value for the corresponding parameter,

the control system being programmed to contemporaneously display in the indicium selection area of a same parameter the following regions;

a first region displaying the set value a user has set for the parameter,

a second region, distinct from the first region, displaying the current actual value for the same parameter,

the first region and the second region occupying respective areas having different sizes on the indicium selection area.

2. Apparatus according to claim 1, wherein the control system is programmed to store in a memory the set value for each parameter and the measured value for the same parameter, the measured values being periodically updated and corresponding updated values displayed in the selection area of the corresponding indicium.

3. Apparatus according to claim 1, wherein the control system is programmed to display in the indicium selection area the actual value for the parameter and, on a different time instant, the set value a user has set for the parameter.

4. Apparatus according to claim 1, wherein the control system is programmed to:

display in the indicium selection area the actual value for the parameter,

detect if a set value of a parameter is under modification, and then

display in the indicium selection area the set value a user has set for the same parameter.

5. Apparatus according to claim 4, wherein the control system is programmed to detect if a set value of a parameter is under modification by at least detecting if the corresponding indicium has been selected.

6. Apparatus according to claim 4, wherein the control system is programmed to control the user interface not to display in the indicium selection area the actual value of the parameter during the set value modification and to re-display the actual value when the set value modification has been completed.

7. Apparatus according to claim 1, wherein the control system is programmed to contemporaneously display in the indicium selection area the following further regions:

a third region comprising an alphanumeric description of the parameter corresponding to the indicium, and

a fourth region displaying a unit of measure of the value of the parameter.

8. Apparatus according to claim 1, wherein the control system is programmed to display the first region according to at least a respective first display condition and a respective second display condition visually differentiated from the first condition.

9. Apparatus according to claim 8, wherein the control system is programmed to display the second region according to at least a respective first display condition and according to a respective second display condition visually differentiated from the first condition.

10. Apparatus according to claim 9, wherein the control system is programmed to control the user interface to modify the first region from said second to said first display condition and to contemporaneously modify the second region from said first to said second display condition when at least one of the following conditions is met:

either the control system receives from said sensors a new actual measured value of a parameter is under modification, or

the control system recognizes that the parameter modification step has been completed;

or

the control system recognizes that the parameter modification step has been cancelled.

11. Apparatus according to claim 9, wherein the control system is programmed to differentiate visualization of the first and second regions when switching from said first to said second display conditions by one or more actions selected in the group comprising:

differently colouring the area of the region when moving from the first to the second display condition,

differently rendering the area of the region when moving from the first to the second display condition,

differently texturing the area of the region when moving from the first to the second display condition,

resizing the dimension of the displayed value when moving from the first to the second display condition,

resizing the dimension of the region when moving from the first to the second display condition.

12. Apparatus according to claim 8, wherein the control system is programmed to detect if a set value of a parameter is under modification, and to then control the user interface to modify the first region from said first to said second display condition and to contemporaneously modify the second region from said second to said first display condition.

13. Apparatus according to claim 12, wherein the control system is programmed to detect if a set value of a parameter is under modification by at least detecting if the corresponding indicium has been selected.

14. Apparatus according to claim 8, wherein the control system is programmed to differentiate display of the first and second regions when switching from said first to said second display conditions by one or more actions selected in the group comprising:

differently colouring the area of the region when moving from the first to the second display condition,

differently rendering the area of the region when moving from the first to the second display condition,

differently texturing the area of the region when moving from the first to the second display condition,

resizing the dimension of the displayed value when moving from the first to the second display condition,

resizing the dimension of the region when moving from the first to the second display condition.

15. Apparatus according to claim 1, wherein the screen comprises a touch screen, said indicium selection area delimited by the indicium border being touch sensitive.

16. Apparatus according to claim 15, wherein the step of allowing selection of the indicium comprises detecting touching said indicium selection area, said step of allowing setting of a parameter value comprises the step of invoking a data-entry display on the touch screen in response to said touching.

17. Apparatus according to claim 16, wherein said data entry display has at least two set buttons and an enter key and wherein said step of allowing setting of a parameter value further comprises the steps of:

receiving a setting of a parametric value corresponding to the treatment parameter by touching one or more buttons of the data-entry display;

detecting the touching of said enter key for signifying setting has been completed.

18. Apparatus according to claim 16, wherein:

said data entry display has at least two set buttons and the user interface comprises at least an enter hard key off of said touch screen and connected to the control system, and wherein said step of allowing setting of a parameter value further comprises the steps of;

receiving a setting of a parametric value corresponding to the treatment parameter by touching one or more buttons of the data-entry display;

detecting the touching of said enter key for signifying setting has been completed.

19. Apparatus according to claim 16, wherein the data entry display comprises at least first and a second display area, the control system being programmed to:

detecting if the set value of the parameter under modification is actually modified,

calculating the set value of at least a second parameter which is function of the value of the parameter under modification,

displaying the set value of the parameter under modification in the first display area;

displaying in the second display area the calculated set value of the second parameter.

20. Apparatus according to claim 1, wherein the screen comprises a touch screen, said indicium selection area delimited by the indicium border being touch sensitive,

and wherein said step of allowing selection of the indicium comprises detecting a touching of said indicium selection area,

said step of allowing setting of a parameter value comprises the following steps:

in response to said touching, activating on the touch screen at least two set buttons and an enter key;

receiving a setting a parametric value corresponding to the treatment parameter by touching one or more buttons;

detecting the touching of said enter key for signifying setting has been completed.

21. Apparatus according to claim 1, comprising:

a dialysis liquid preparation module for preparing dialysis liquid,

at least a waste line for receiving spent dialysate,

a blood removal tubing,

a blood return tubing, and

a blood treatment unit having a first chamber connected to dialysis liquid preparation module and to the waste line, and a second chamber connected to the blood removal and to the blood return tubing, said first and second chamber being separated by a semipermeable membrane.

22. Apparatus according to claim 21, wherein the control system is programmed to identify a sub-group of said parameters, said subgroup comprising one or more of the following:

Temperature of the dialysis liquid,

Conductivity of the dialysis liquid,

Electrolytes concentration of the dialysis liquid,

Flow rate of the dialysis liquid,

Flow rate of the spent dialysate,

Flow rate of the blood in the in one of said tubing,

Ultrafiltration rate through the semipermeable membrane,

Net weight loss rate,

Treatment time,

Weight loss.

23. Apparatus according to claim 22, wherein the control system is programmed for displaying, on the selection area of the indicium of each parameter in said subgroup, both the actual value and the set value for the corresponding parameter.

24. Apparatus according to claim 1, comprising:

a dialysis liquid module for delivery of fresh dialysis liquid,

at least a waste line for receiving spent dialysate,

a blood removal tubing,

a blood return tubing, and

a blood treatment unit having a first chamber connected to dialysis liquid module and to the waste line, and a second chamber connected to the blood removal and to the blood return tubing, said first and second chamber being separated by a semipermeable membrane, wherein;

the user interface screen comprises a touch screen, said indicium selection area delimited by the indicium border being touch sensitive,

the control system is programmed to receive settings via the user interface for at least the following three parameters;

net patient weight loss rate, treatment time, and total patient weight loss,

the step of allowing selection of the indicium comprises detecting a touching said indicium selection area, the step of allowing setting of a parameter value comprises the step of invoking a data-entry display on the touch screen in response to said touching, the data entry display comprising at least first and a second display area, the control system being programmed to;

detecting if the set value of one of said three parameters is under modification,

calculating the set value of at least a second one of the other two of said three parameters as function of the value of the parameter under modification,

display the set value of the parameter under modification in the first display area;

display in the second display area the calculated set value of the second parameter.

25. Apparatus according to claim 24, wherein the first parameter is either treatment time or total patient weight loss, the second parameter is net patient weight loss rate and wherein the control system is programmed to check compliance of the values of said first and second parameters with respective ranges, visually signalling on the touch screen occurrence of any out of range situation.

26. Apparatus according to claim 1, wherein the control system is programmed to display the actual value on the indicium selection area either in digital or in analogical form.

27. Apparatus according to claim 1, wherein the control system is programmed to display the set value on the indicium selection area either in digital or in analogical form.

28. Software program stored on a support selected from the group consisting of a magnetic recording support, an optical recording support, a ROM memory and a RAM memory, wherein the program comprises instructions that, when executed, program the control system to execute the steps claimed in claim 1.