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Ventricular assist devices and integrated sensors thereof

A ventricular assist, sensor element technology for improved blood pump design

Inactive Publication Date: 2019-03-15
HEARTWARE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, despite considerable efforts to improve this VAD, further improvements are expected

Method used

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  • Ventricular assist devices and integrated sensors thereof
  • Ventricular assist devices and integrated sensors thereof
  • Ventricular assist devices and integrated sensors thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A ventricular assist device for intraventricular placement inside the heart of a mammalian subject, comprising:

[0065] a pump comprising:

[0066] (i) a housing having an inlet end, an inlet at the inlet end, and an outlet; and

[0067] (ii) a movable element disposed in the pump housing for pushing blood from the inlet to the outlet;

[0068] base member;

[0069] a spacer member connected to the pump housing and the base member such that the base member is positioned at a distance from the inlet end of the pump housing to form a gap therebetween; as well as

[0070] one or more sensor elements mounted to at least one of the base member and the housing, the one or more sensor elements configured to measure During the main one or more parameters within the gap.

Embodiment 2

[0072] The ventricular assist device of example 1, wherein the one or more sensor elements comprise a first sensor element mounted to one of the pump housing and the base member, and a first sensor element attached to the pump housing and a second sensor element of the other of the base members.

Embodiment 3

[0074] The ventricular assist device of embodiment 2, wherein said first and second sensor elements are ultrasound transducers.

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Abstract

A ventricular assist device for intraventricular placement inside a heart of a mammalian subject includes a pump including a housing having an inlet end, an inlet at the inlet end, and an outlet. Thepump further includes a moveable element disposed in the pump housing for pumping blood from the inlet to the outlet. A base member is included as well as a spacer member connected to the pump housingand the base member. The base member is positioned a distance from the inlet end of the pump housing to define a gap therebetween. One or more sensor elements are mounted to at least one from the group consisting of the base member and the housing, the one or more sensor elements being configured to measure one or more blood parameters prevailing within the gap during operation of the pump.

Description

technical field [0001] The present invention relates to blood pumps useful as implantable ventricular assist devices, and more particularly to improved blood pump designs having one or more integrated sensors. Background technique [0002] In certain disease states, the heart lacks sufficient pumping capacity to maintain adequate blood flow to the body's organs and tissues. For example, conditions such as ischemic heart disease and high blood pressure can prevent the heart from filling and pumping effectively. This condition, also known as congestive heart failure, can lead to serious health complications, including respiratory distress, cardiac asthma, and even death. In fact, congestive heart failure is one of the leading causes of death in the Western world. [0003] This deficiency of the heart can be alleviated by providing a mechanical pump, also known as a ventricular assist device ("VAD"), to supplement the pumping action of the heart. A VAD can be used to assist ...

Claims

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Application Information

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IPC IPC(8): A61M1/10A61M1/12A61M60/17A61M60/232A61M60/237A61M60/419A61M60/523A61M60/531A61M60/857A61M60/863A61M60/873A61M60/88
CPCA61M2205/3331A61M2205/3334A61M2230/30A61M60/422A61M60/531A61M60/857A61M60/863A61M60/88A61M60/237A61M60/523A61M60/873A61M60/174A61M60/816A61M60/232A61M60/148A61M60/419A61M60/17A61M2205/0244
Inventor N·J·努内兹T·麦斯文尼
Owner HEARTWARE INC
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