Cartridge systems, capacitive pumps and multi-throw valves and pump-valve systems and applications of same
US-11135582-B2 · Oct 5, 2021 · US
Multichannel pumps and applications of same
US11384751B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11384751-B2 |
| Application number | US-202117505940-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 20, 2021 |
| Priority date | Oct 7, 2010 |
| Publication date | Jul 12, 2022 |
| Grant date | Jul 12, 2022 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A push-pull micropump includes one or more pairs of channels configured to transfer one or more fluids, each channel pair having an aspiration channel and an injection channel; and an actuator configured to engage the one or more pairs of channels, wherein the actuator comprises a plurality of rolling members and a driving member configured such that when the driving member rotates, the plurality of rolling members rolls along the one or more pairs of channels to cause individually the one or more fluids to transfer through each channel pair simultaneously at different flowrates or the same flowrate, depending upon actuated lengths of the aspiration and injection channels of each channel pair, wherein an actuated length of a channel is defined by a length of the channel along which the plurality of rolling members rolls during a full rotation of the driving member.
First claim
Opening claim text (preview).
What is claimed is: 1. A push-pull micropump, comprising: one or more pairs of channels configured to transfer one or more fluids, each channel pair having an aspiration channel and an injection channel, wherein each channel has a middle channel portion, and wherein the middle channel portions of the aspiration and injection channels of each channel pair are arranged as segments of two concentric circles with different radii; and an actuator configured to engage the one or more pairs of channels, wherein the actuator comprises a plurality of rolling members and a driving member configured such that when the driving member rotates, the plurality of rolling members rolls along the one or more pairs of channels to cause individually the one or more fluids to transfer through each channel pair simultaneously at different flowrates or the same flowrate, depending upon width, depth, or actuated lengths of the aspiration and injection channels of each channel pair, wherein an actuated length of a channel is defined by a length of the channel along which the plurality of rolling members rolls during a full rotation of the driving member, wherein the driving member comprises a bearing cage defining a plurality of spaced-apart openings thereon, and the plurality of rolling members is accommodated in the plurality of spaced-apart openings; and wherein the plurality of spaced-apart openings defines two concentric circles that are operably coincident with said two concentric circles of the middle channel portions of the one or more pairs of channels. 2. The push-pull micropump of claim 1 , wherein each channel pair is configured such that the actuated length of the aspiration channel is longer than that of the injection channel, whereby the aspiration and injection channels of each channel pair have different flowrates. 3. The push-pull micropump of claim 1 , wherein each channel pair is configured such that the actuated length of the aspiration channel is same as that of the injection channel, whereby the aspiration and injection channels of each channel pair have the same flowrate. 4. The push-pull micropump of claim 1 , wherein when the driving member rotates about a central axis, each rolling member operably rolls about a respective axis that is not parallel to the central axis. 5. The push-pull micropump of claim 1 , wherein each of the plurality of rolling members comprises a ball, or a roller.
Assignees
Inventors
Classifications
Pumps specially adapted for several tubular flexible members · CPC title
- F04B43/0072Primary
of tubular flexible members · CPC title
- F04B43/1269Primary
the rotary axes of the rollers lying in a plane perpendicular to the rotary axis of the driving motor · CPC title
having peristaltic action · CPC title
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Frequently asked questions
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- What does patent US11384751B2 cover?
- A push-pull micropump includes one or more pairs of channels configured to transfer one or more fluids, each channel pair having an aspiration channel and an injection channel; and an actuator configured to engage the one or more pairs of channels, wherein the actuator comprises a plurality of rolling members and a driving member configured such that when the driving member rotates, the plurali…
- Who is the assignee on this patent?
- Univ Vanderbilt
- What technology area does this patent fall under?
- Primary CPC classification F04B43/0072. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jul 12 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).