Controller and power source for implantable blood pump
US-2015374893-A1 · Dec 31, 2015 · US
TET system for implanted medical device
US9770544B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9770544-B2 |
| Application number | US-201615360127-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 23, 2016 |
| Priority date | Sep 10, 2008 |
| Publication date | Sep 26, 2017 |
| Grant date | Sep 26, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A TET system is operable to vary an amount of power transmitted from an external power supply to an implantable power unit in accordance with a monitored condition of the implantable power unit. The amount of power supplied to the implantable power unit for operating a pump, for example, can be varied in accordance with a cardiac cycle, so as to maintain the monitored condition in the power circuit within a desired range throughout the cardiac cycle.
First claim
Opening claim text (preview).
What is claimed is: 1. A system, comprising: an implantable electrical device adapted for mounting within a body of a patient; an implantable power unit adapted for mounting within the body of the patient, the power unit having a receiving coil and a power circuit in communication with the receiving coil to transmit power from the receiving coil to the implantable electrical device; and a power supply external to the patient having: a transmitting coil adapted for transcutaneous mutual inductive coupling with the receiving coil, the transmitting coil and the receiving coil including a resonant frequency; a drive circuit operable to apply an alternating current having a variable transmission frequency to the transmitting coil; and a control circuit configured to adjust the transmission frequency to a value having a predetermined difference from the resonant frequency to maintain the transmission frequency with the predetermined difference from the resonant frequency.
Assignees
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Classifications
by induction · CPC title
Medical devices, medical implants or life supporting devices · CPC title
using wireless data transmission · CPC title
Battery or charger load switching, e.g. concurrent charging and load supply (H02J7/50 takes precedence) · CPC title
with electronic devices having internal batteries, e.g. mobile phones · CPC title
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- What does patent US9770544B2 cover?
- A TET system is operable to vary an amount of power transmitted from an external power supply to an implantable power unit in accordance with a monitored condition of the implantable power unit. The amount of power supplied to the implantable power unit for operating a pump, for example, can be varied in accordance with a cardiac cycle, so as to maintain the monitored condition in the power cir…
- Who is the assignee on this patent?
- Heartware Inc, Christopher & Weisberg P A
- What technology area does this patent fall under?
- Primary CPC classification A61M1/127. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Sep 26 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).