Abnormality detecting device for heart assist device, method for detecting abnormality of heart assist device, and abnormality detecting program

• US 8,610,583 B2
• Filed: 07/13/2009
• Issued: 12/17/2013
• Est. Priority Date: 10/31/2008
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Heavy Industries, Ltd.
• Original Assignee: Mitsubishi Heavy Industries, Ltd.
• Inventors: Sasaki, Shuhei
• Primary Examiner(s): Lieu, Julie
• Application Number:
  US12/988,652
• Publication Number:
  US 20110032107A1
• Time in Patent Office: 1,618 Days
• Field of Search: None
• US Class Current: 340/573.1
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/33 Controlling, regulating or measuring
• CPC Class Codes: A61M 2205/3303 Using a biosensor
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/216 including a rotating member acting on the blood, e.g. impeller
• CPC Class Codes: A61M 60/531 using blood pressure data, e.g. from blood pressure sensors
• CPC Class Codes: A61M 60/554 of blood pressure

Abstract

In order to provide an abnormality detecting device for a heart assist device, a method for detecting an abnormality of a heart assist device and an abnormal state of a heart assist device detecting program which can early detect an abnormal state, the abnormality detecting device for a heart assist device according to the present invention includes a user information acquiring means for obtaining user information that indicates an operation state of the heart assist device implanted in a body of a user or a biological state of the user measured by the heart assist device and associating said user information with time to store in a history information storing means, and an abnormal state judging means for referring said history information storing means and judging whether or not an abnormal state is present based on a history of said user information.

Claims

1. An abnormality detecting device for a heart assist device, comprising:

a user information acquiring means for obtaining user information that indicates an operation state of the heart assist device implanted in a body of a user or a biological state of the user measured by the heart assist device and associating said user information with time to store in a history information storing means; and

an abnormal state judging means for referring to said history information storing means and judging whether or not an abnormal state is present based on a history of said user information,

wherein said heart assist device comprises a liquid pump that is controlled by electric power such that a rotation speed is a desirable rotation speed,

wherein said user information acquiring means acquires consumed power of said liquid pump as said user information, and

wherein said abnormal state judging means judges whether or not the abnormal state is present in a flow path, based on a history of said consumed power of the liquid pump.

2. The abnormality detecting device for a heart assist device according to claim 1, further comprising:

a wireless communication means for sending an alarm signal indicating the abnormal state to a contact receiver device located at a distant place, when the abnormal state judging means judges that the abnormal state is present.

3. The abnormality detecting device for a heart assist device according to claim 2, further comprising:

a location information acquiring means for acquiring location information that indicates a current location,

wherein said wireless communication means sends a signal including said location information as said alarm signal.

4. The abnormality detecting device for a heart assist device according to claim 2, wherein said user information acquiring means, said history information storing means, and said abnormal judging means are provided in a controller device that is connected to said heart assist device with a wire line,

wherein said wireless communication means comprises:

a first wireless communication means provided in said controller device; and

a second wireless communication means provided in a mobile terminal, and

wherein said first wireless communication means sends said alarm signal to said contact receiver device via said second wireless communication means.

5. The abnormality detecting device for a heart assist device according to claim 4, further comprising:

an emergency treatment informing means for generating emergency treatment information that indicates contents of emergency treatment to inform around of the user, when the abnormal judging means judges that the abnormal state is present.

6. The abnormality detecting device for a heart assist device according to claim 5, wherein said emergency treatment informing means informs said emergency treatment information with an audio output device that outputs sound, and

wherein said audio output device is provided in either one of said mobile terminal and said controller device.

7. The abnormality detecting device for a heart assist device according to claim 2, wherein said abnormal state judging means identifies a type of the abnormal state when judging that the abnormal state is present, and

wherein said wireless communication means sends a signal indicating said type of the abnormal state as said alarm signal.

8. The abnormality detecting device for a heart assist device according to claim 7, wherein said wireless communication means selects said contact receiver device from a plurality of candidate contact receiver devices based on said type of the abnormal state to send said alarm signal to said selected contact device.

9. The abnormality detecting device for a heart assist device according to claim 2, wherein said abnormal state judging means decides an alarm level of the abnormal state when judging that the abnormal state is present, and said contact receiver device is selected based on said alarm level.

10. A heart assist device system, comprising:

an abnormality detecting device for a heart assist device; and

a heart assist device implanted in the body of the user,

wherein said abnormality detecting device for a heart assist device comprises;

a user information acquiring means for obtaining user information that indicates an operation state of the heart assist device implanted in a body of a user or a biological state of the user measured by the heart assist device and associating said user information with time to store in a history information storing means; and

an abnormal state judging means for referring to said history information storing means and judging whether or not an abnormal state is present based on a history of said user information,

wherein said heart assist device comprises a liquid pump that is controlled by electric power such that a rotation speed is a desirable rotation speed,

wherein said user information acquiring means acquires consumed power of said liquid pump as said user information, and

wherein said abnormal state judging means judges whether or not the abnormal state is present in a flow path, based on a history of said consumed power of the liquid pump.

11. A method for detecting an abnormality of a heart assist device, comprising:

acquiring, utilizing an information acquiring system, operation information that indicates an operation state of a heart assist device implanted in a body of a user as user information, and associating said user information with time to store in a history information storage system; and

referring to a history information storing section and judging whether or not the abnormal state is present, based on a history of said user information,

wherein said heart assist device comprises a liquid pump that is controlled by electric power such that a rotation speed is a desirable rotation speed,

wherein said user information acquiring system acquires consumed power of said liquid pump as said user information, and

wherein the action of judging whether or not the abnormal state is present includes judging whether or not the abnormal state is present in a flow path, based on a history of said consumed power of the liquid pump.

12. A computer-readable-recording medium in which a computer-executable program code is stored to attain a method for detecting an abnormality of a heart assist device, which comprises:

acquiring, utilizing an information acquiring system, operation information that indicates an operation state of a heart assist device implanted in a body of a user as user information, and associating said user information with time to store in a history information storage system; and

referring to a history information storing section and judging whether or not the abnormal state is present, based on a history of said user information,

wherein said heart assist device comprises a liquid pump that is controlled by electric power such that a rotation speed is a desirable rotation speed,

wherein said user information acquiring system acquires consumed power of said liquid pump as said user information, and

wherein the action of judging whether or not the abnormal state is present includes judging whether or not the abnormal state is present in a flow path, based on a history of said consumed power of the liquid pump.