Split ring resonator antenna adapted for use in wirelessly controlled medical device

• US 8,900,188 B2
• Filed: 12/23/2009
• Issued: 12/02/2014
• Est. Priority Date: 12/31/2007
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Blumberg, David Jr., Kamen, Dean, Gray, Larry B.
• Primary Examiner(s): BERDICHEVSKY, AARTI
• Application Number:
  US12/646,630
• Publication Number:
  US 20100191186A1
• Time in Patent Office: 1,805 Days
• Field of Search: 604/131, 604151-153, 604/890.1, 343/850, 343/860, 455/39, 455/63.1
• US Class Current: 604/151
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2205/0266 Shape memory materials
• CPC Class Codes: A61M 2205/3375 Acoustical, e.g. ultrasonic, measuring means
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/6018 providing set-up signals for the apparatus configuration
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: A61M 2205/8237 Charging means
• CPC Class Codes: A61M 2209/086 Docking stations
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/16809 by repeated filling and emptying of an intermediate volume pressure infusion using positive displacement pumps A61M5/142
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: H01Q 1/273 Adaptation for carrying or wearing by persons or animals
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 1/50 Structural association of antennas with earthing switches, lead-in devices or lightning protectors
• CPC Class Codes: H01Q 1/52 Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure absorbing means H01Q17/00
• CPC Class Codes: H01Q 1/526 Electromagnetic shields
• CPC Class Codes: H01Q 7/00 : Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• CPC Class Codes: H04B 1/44 : Transmit/receive switching

Abstract

An infusion pump assembly is disclosed. The infusion pump assembly includes a reservoir for receiving an infusible fluid, a pump assembly for pumping a quantity of infusible fluid from the reservoir to an exit, a first valve assembly configured to selectively isolate the pump assembly from the reservoir, a second valve assembly configured to selectively isolate the exit from the pumping assembly, and a split ring resonator antenna having a resonant frequency comprising a plurality of planar metallic layers.

Claims

1. An infusion pump assembly comprising:

a housing assembly comprising;

a reservoir for receiving an infusible fluid located within the housing assembly;

an exit located within the housing assembly;

a pump assembly, located within the housing assembly, for pumping a quantity of infusible fluid from the reservoir to the exit;

a first valve assembly, located within the housing assembly, located downstream from the reservoir and upstream from the exit wherein the first valve selectively isolates the pump assembly from the reservoir;

a second valve assembly, located within the housing assembly, located downstream from the pump assembly and upstream from the exit wherein the second valve selectively isolates the exit from the pump assembly; and

a single antenna, located within the housing assembly, comprising a split ring resonator antenna having a resonant frequency, the split ring resonator antenna comprising a plurality of planar metallic layers, the split ring resonator antenna comprising an impedance matching circuit, wherein the impedance matching circuit is integrated into a transmission line.

2. The infusion pump assembly of claim 1, the infusion pump assembly further comprising:

at least one control unit; and

a transmitting and receiving base unit capable of powering the antenna, wherein the split ring resonator antenna is coupled to the base unit and whereby the antenna wirelessly transmits and receives data from the at least one control unit, whereby the system minimizes the parasitic effects of dielectric materials in close proximity to a wearable radio frequency device.

3. The infusion pump assembly of claim 2 further comprising an external infusion set configured to deliver the infusible fluid to a user.

4. The infusion pump assembly of claim 3 further comprising:

a disposable housing assembly including the reservoir; and

a reusable housing assembly including a second portion of the fluid delivery system.

5. The infusion pump assembly of claim 2 further comprising a signal processing component.

6. The infusion pump assembly of claim 5, the signal processing component further comprising at least one filter.

7. The infusion pump assembly of claim 5, the signal processing component further comprising at least one amplifier.

8. The infusion pump assembly of claim 5, the signal processing component further comprising at least one switch.