Double action infusion pump
US-2015343137-A1 · Dec 3, 2015 · US
Drug delivery pump drive using linear piezoelectric motor
US8936574B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8936574-B2 |
| Application number | US-201313734475-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 4, 2013 |
| Priority date | Oct 18, 2007 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
Official abstract text for this publication.
A drug delivery pump drive which uses a linear piezoelectric motor to advance a syringe piston to deliver a liquid drug and a method thereof are disclosed. The pump drive, provided in a drug delivery pump, provides silent operation and very low energy consumption compared to electric motor-based drives. The small size of the motor helps also to reduce overall size of the pump drive and the resulting drug delivery pump.
First claim
Opening claim text (preview).
What is claimed is: 1. A drive system used to dispense a liquid drug from a drug container having a piston, said drive system comprising: a lead screw having a rotational axis and operably connected to the piston; a ratchet wheel provided along the rotational axis and operably connected to the lead screw to move the lead screw; a piezoelectric motor having a shaft, a first nut engaging the shaft, and piezoelectric elements configured to produce reciprocating linear motion of t…
Assignees
Inventors
Classifications
- A61M5/14216Primary
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- F04B43/046Primary
Mechanical Engineering · mapped topic
Human Necessities · mapped topic
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- What does patent US8936574B2 cover?
- A drug delivery pump drive which uses a linear piezoelectric motor to advance a syringe piston to deliver a liquid drug and a method thereof are disclosed. The pump drive, provided in a drug delivery pump, provides silent operation and very low energy consumption compared to electric motor-based drives. The small size of the motor helps also to reduce overall size of the pump drive and the resu…
- Who is the assignee on this patent?
- Roche Diagnostics Operations
- What technology area does this patent fall under?
- Primary CPC classification A61M5/14216. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Jan 20 2015 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).