Occlusion detection techniques for a fluid infusion device having a rotary pump mechanism and multiple sensor contact elements
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United States of America Patent
Stats
-
Jan 30, 2018
Issued Date -
N/A
app pub date -
Jun 22, 2015
filing date -
Jun 22, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fluid infusion device includes a pump having a rotor and a stator. A rotor cam element rises from a reference surface of the rotor. The stator includes a cam element having a stator cam surface. The cam elements axially displace the rotor as the rotor revolves. Inlet and outlet valves open and close as a function of angular and axial position of the rotor. A motor actuates the rotor to pump fluid to a body, via a subcutaneous conduit. First and second contact elements are located on the rotor. A sensing element on the stator cooperates with a detection circuit to detect when the sensing element makes contact with the first sensor contact element and the second sensor contact element. The detection circuit monitors a detection signal obtained from the sensing element to determine an operating condition of the fluid pump mechanism.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- F04B Class
- 45.27 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 30, 2025 |
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