Vad integrated flow sensor

Patent metadata

Field	Value
Publication number	US-2018099077-A1
Application number	US-201715834487-A
Country	US
Kind code	A1
Filing date	Dec 7, 2017
Priority date	Sep 5, 2012
Publication date	Apr 12, 2018
Grant date	—

Abstract

A blood pump with an integrated flow sensor is provided. The blood pump may include an implantable pump for pumping blood having a housing, a flow path extending within the housing and at least one movable element within the housing for impelling blood along the flow path and a sensor for measuring the flow rate of blood through the pump. According to one embodiment, the sensor may be mounted to the housing of the pump. In accordance with a further embodiment, the housing may have an exterior surface defining a cavity, and the sensor may be located within the cavity.

First claim

1 - 15 . (canceled)

16 . A blood pump comprising:
a housing including a window and defining a flow path and a cavity having the window therebetween; a flow sensor disposed within the cavity and angled toward the flow path; a driveline proximate the housing, the driveline being in communication with the flow sensor; and a control unit coupled to the driveline.

17 . The blood pump of claim 16 , further comprising a first platform disposed within the cavity, the first platform having the flow sensor coupled thereto.

18 . The blood pump of claim 17 , wherein the flow path includes an upstream portion and a downstream portion defining a flow path axis extending therethrough, and the first platform includes a surface facing at an angle oblique to the flow path axis.

19 . The blood pump of claim 18 , further comprising a second platform disposed within the cavity proximate the first platform, the second platform including a second flow sensor coupled thereto, the second flow sensor in communication with the flow sensor.

20 . The blood pump of claim 19 , further comprising a second window disposed between the second platform and the flow path.

21 . The blood pump of claim 19 , wherein the second platform is disposed downstream from the first platform, the second platform including a surface facing downstream at an angle oblique to the flow path axis.

22 . The blood pump of claim 16 , further comprising a second cavity including a printed circuit board having a plurality of conductors coupled to the flow sensor.

23 . A blood pump comprising:
a housing defining a flow path therethrough from an upstream direction to a downstream direction and defining a cavity exterior to the flow path; a first flow sensor disposed within the cavity in communication with the flow path; and a second flow sensor disposed within the cavity in communication with the first flow sensor.

24 . The blood pump of claim 23 , further comprising a window disposed between the first flow sensor and the cavity.

25 . The blood pump of claim 23 , further comprising a first platform and a second platform proximate the first platform, the first platform having a first surface facing the upstream direction and including the first flow sensor being coupled thereto and the second platform including a first surface facing the downstream direction and including the second flow sensor being coupled thereto.

26 . The blood pump of claim 25 , wherein the housing defines a flow path axis extending through the flow path from the upstream direction to the downstream direction, and the first surface of the first platform and the first surface of the second platform are disposed at an angle oblique to the flow path axis.

27 . The blood pump of claim 23 , further comprising a second cavity proximate the cavity, the second cavity including a printed circuit board and a plurality of conductors disposed therein, the plurality of conductors coupling the first flow sensor and the second flow sensor to the printed circuit board.

28 . The blood pump of claim 27 , further comprising a driveline coupled to the printed circuit board in communication with the first flow sensor and the second flow sensor.

29 . The blood pump of claim 28 , further comprising a control unit coupled to the driveline.

30 . The blood pump of claim 23 , wherein the first flow sensor is a driving transducer and the second flow sensor is a receiving transducer.

31 . A blood pump comprising:
a housing defining a flow path therethrough from an upstream direction to a downstream direction and a defining a printed circuit board cavity exterior to the flow path, the printed circuit board cavity including a printed circuit board therein; a first transducer and a second transducer disposed within the housing in communication with the printed circuit board; an interface separating the first transducer and the second transducer from the flow path; and a driveline coupled to the printed circuit board.

32 . The blood pump of claim 31 , wherein the housing defines a cavity adjacent the printed circuit board cavity, the cavity including a first platform having the first transducer coupled thereto and a second platform having the second transducer coupled thereto.

33 . The blood pump of claim 32 , further comprising a plurality of conductors coupling the printed circuit board to the first transducer and the second transducer.

34 . The blood pump of claim 31 , further comprising a control unit coupled to the driveline, the control unit configured to cause the first transducer to emit a plurality of ultrasonic waves in an angle oblique to the downstream direction of the flow path.

35 . The blood pump of claim 34 , wherein the control unit includes a power supply.

Assignees

• Heartware Inc

Inventors

• Tamez Dan
• Voskoboynikov Neil

Classifications

• A61M2205/3334

  Measuring or controlling the flow rate · CPC title

• A61M2205/3375

  Acoustical, e.g. ultrasonic, measuring means · CPC title

• A61M2205/0211

  Ceramics · CPC title

• A61M1/122

  Human Necessities · mapped topic

• A61M1/1086 Primary

  Human Necessities · mapped topic