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

• US 11,404,776 B2
• Filed: 11/21/2014
• Issued: 08/02/2022
• Est. Priority Date: 12/31/2007
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Blumberg, Jr., David
• Primary Examiner(s): Salih, Awat M
• Application Number:
  US14/550,128
• Publication Number:
  US 20150303563A1
• Time in Patent Office: 2,811 Days
• Field of Search: 343850, 343860
• 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. A system comprising:

an infusion pump assembly comprising;

a split ring resonator antenna having a resonant frequency, the split ring resonator antenna comprising a plurality of planar metallic layers and defining a greatest dimension less than one wavelength at an operational frequency of 2.4 GHz ISM Band, the split ring resonator antenna located inside an infusion pump housing;

at least one control unit; and

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

2. The system of claim 1 wherein the split ring resonator antenna further comprising an impedance matching circuit.

3. The system of claim 2 further comprising a signal processing component.

4. The system of claim 3 wherein the signal processing component further comprising at least one filter.

5. The system of claim 3 wherein the signal processing component further comprising at least one amplifier.

6. The system of claim 3 wherein the signal processing component further comprising at least one switch.

7. The system of claim 1 wherein the split ring resonator antenna located within a housing assembly, the split ring resonator antenna comprising an impedance matching circuit, wherein the impedance matching circuit is integrated into a transmission line.

8. A wearable infusion pump apparatus comprising:

a split ring resonator antenna having a resonant frequency, the split ring resonator antenna comprising a plurality of planar metallic layers and defining a greatest dimension less than one wavelength at an operational frequency of 2.4 GHz ISM Band, the split ring resonator antenna located inside an infusion pump housing; and

an impedance matching circuit and wherein the wearable infusion pump apparatus minimizes parasitic effects of dielectric materials in close proximity to the wearable infusion pump apparatus.

9. The apparatus of claim 8 further comprising a signal processing component.

10. The apparatus of claim 9 wherein the signal processing component further comprising at least one filter.

11. The apparatus of claim 9 wherein the signal processing component further comprising at least one amplifier.

12. The apparatus of claim 9 wherein the signal processing component further comprising at least one switch.

13. The apparatus of claim 8 wherein the split ring resonator antenna located within a housing assembly, the split ring resonator antenna comprising an impedance matching circuit, wherein the impedance matching circuit is integrated into a transmission line.