Intra-occular pressure sensor

• US 9,078,613 B2
• Filed: 05/28/2013
• Issued: 07/14/2015
• Est. Priority Date: 08/23/2007
• Status: Active Grant

• Current Assignee: Purdue Research Foundation (The Trustees of Purdue University (d/b/a Purdue University))
• Original Assignee: Purdue Research Foundation (The Trustees of Purdue University (d/b/a Purdue University))
• Inventors: Irazoqui, Pedro P., Chow, Eric Y., Chappell, William J., Yang, Chin-Lung, Ziaie, Babak
• Primary Examiner(s): HINDENBURG, MAX F
• Application Number:
  US13/903,728
• Publication Number:
  US 20140088400A1
• Time in Patent Office: 777 Days
• Field of Search: 600398-400, 604/8, 604/9
• US Class Current: 1/1
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 3/16 for measuring intraocular pressure, e.g. tonometers
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/0028 Body tissue as transmission medium, i.e. transmission systems where the medium is the human body
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/03 Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs A61B5/205 takes precedence
• CPC Class Codes: A61B 5/6803 Head-worn items, e.g. helmets, masks, headphones or goggles
• CPC Class Codes: A61B 5/686 Permanently implanted devices, e.g. pacemakers, other stimulators, biochips A61B5/6861 takes precedence

Abstract

A system is provided for monitoring intraocular pressure, the system comprising: a sensor package configured to be disposed in the suprachoroidal space of a patient'"'"'s eye; a pressure sensor; a wireless transceiver disposed within the sensor package and coupled to the pressure sensor; an external transceiver, the external receiver being wirelessly coupled to the wireless transceiver when the transceiver is disposed proximate to the patient'"'"'s eye.

Claims

1. A system for the transmission of data from a biomedical implant, the system comprising:

an antenna, selected from the group of antennae consisting of loop antenna, patch antenna and inverted-F antenna;

a low temperature co-fired ceramic substrate upon which said antenna is disposed;

an integrated means of wireless power transfer; and

said antenna is configured with single layer shorting pins and from high-K material disposed about the perimeter of the biomedical implant in a single loop.

2. The system of claim 1, wherein said antenna comprises a radio frequency antenna configured for both transmission of data from and reception of radio waves.

3. The system of claim 1, further comprising a capacitor array disposed on said ceramic substrate and connected to said integrated means for wireless power transfer.

4. The system of claim 1, wherein the system is sized for implantation within an eye.

5. The system of claim 4, wherein said antenna has a length of less than 4-5% of the wavelength being received by the antenna.

6. The system of claim 4, further comprising a capacitor array disposed on said ceramic substrate and connected to said integrated means for wireless power transfer.