Non-invasive devices and methods for lowering intra-ocular pressure

• US 9,308,126 B2
• Filed: 09/08/2014
• Issued: 04/12/2016
• Est. Priority Date: 11/29/2010
• Status: Active Grant

• Current Assignee: The Board of Regents of the University of Colorado (University of Colorado System)
• Original Assignee: The Board of Regents of the University of Colorado (University of Colorado System)
• Inventors: Kahook, Malik Y., Sussman, Glenn R., Atkinson, Robert E.
• Primary Examiner(s): Yu, Justine
• Assistant Examiner(s): TSAI, MICHAEL JASPER
• Application Number:
  US14/480,214
• Publication Number:
  US 20150196424A1
• Time in Patent Office: 582 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 3/16 for measuring intraocular pressure, e.g. tonometers
• CPC Class Codes: A61F 9/00 Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand caps with means for protecting the eyes A42B1/018; visors for helmets A42B3/22; retractors A61B17/02; manipulators specially adapted for use in surgery A61B34/70; appliances to aid invalids to move about A61H3/00; exercisers for the eyes A61H5/00; eye baths A61H35/02; sunglasses or goggles having the same features as spectacles G02C
• CPC Class Codes: A61F 9/007 Methods or devices for eye surgery
• CPC Class Codes: A61N 7/00 Ultrasound therapy lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 ; using ultrasound for introducing media into the body A61M37/0092

Abstract

Improvements in devices, systems and methods for non-invasively lowering intra-ocular pressure (IOP). In examples, the device applies non-invasive, focal, mechanical oscillation to the limbal region at a low amplitude and frequency, targeting the trabecular meshwork to restore outflow function and lower IOP.

Claims

1. A method of treating an eye, the method comprising:

applying focal sonic oscillation to a plurality of locations on an ocular surface of the eye using a device having a treatment head, wherein each of the plurality of locations is on a limbal region of the eye, the limbal region being spaced apart from a cornea of the eye, and wherein the focal sonic oscillation applied to each of the plurality of locations includes an oscillation frequency and a duration, wherein the focal oscillation is activated when a measured pressure is within a range having a lower limit indicative of the treatment head being applied to and in contact with a surface of the eye and an upper limit corresponding to a maximum pressure threshold.

2. The method of claim 1, wherein the plurality of locations is disposed in a circular pattern about the cornea.

3. The method of claim 1, wherein the plurality of locations includes at least a first location and a second location, and wherein a duration of the focal sonic oscillation applied to the first location is at least partially concurrent with a duration of the focal sonic oscillation applied to the second location.

4. The method of claim 2, wherein the plurality of locations includes at least a first location and a second location, and wherein the first location is positioned 180 degrees from the second location.

5. The method of claim 2, wherein the plurality of locations includes at least a first location and a second location, and wherein the first location is spaced from the second location by less than 180 degrees.

6. The method of claim 2, wherein the circular pattern is facilitated by a template to guide the treatment head.

7. The method of claim 1, wherein the focal oscillation is applied by one or more pins in the treatment head.

8. The method of claim 7, wherein the one or more pins are driven by one of a motor and a magnetic solenoid.

9. The method of claim 7, wherein the one or more pins are driven hydraulically or pneumatically.

10. The method of claim 1, wherein the focal oscillation is applied by a pulsating fluid ejected out of the treatment head.

11. The method of claim 1, wherein the measured pressure is measured by a sensor disposed within the treatment head.

12. The method of claim 11, wherein the sensor is a load cell.

13. The method of claim 7, wherein each of the one or more pins is configured to oscillate between a first position and a second position, wherein, when in the first position, the one or more pins are withdrawn into the treatment head, and, when in the second position, a distal portion of the one or more pins is extended out of the treatment head.

14. The method of claim 1, wherein the focal oscillation is applied to the limbal region of the eye without increasing a temperature of eye tissue.

15. The method of claim 1, wherein the focal oscillation is applied to the limbal region of the eye by repeatedly pressing the limbal region with a distal end of an oscillating pin.

16. The method of claim 1, wherein the treatment head includes a portion configured to be positioned on and in contact with a limbus of the eye.

17. The method of claim 16, wherein the portion includes an edge configured to complement the limbus.

18. The method of claim 1, wherein the treatment head includes a distalmost surface angled relative to a longitudinal axis of the treatment head, wherein the distalmost surface includes an opening through which a distal portion of an oscillating element may extend out of the treatment head and withdrawn into the treatment head.

19. A method of treating an eye, the method comprising:

positioning a pin of a treatment device at a first location on an ocular surface of the eye, wherein the first location is spaced from the cornea; and

oscillating the pin to repeatedly apply a force to the first location, wherein the force is applied at a frequency outside of the ultrasonic range, wherein the force from the oscillating of the pin is activated when a measured pressure is within a range having a lower limit indicative of the pin being applied to and in contact with to the ocular surface of the eye and an upper limit corresponding to a maximum pressure threshold.

20. The method of claim 19, wherein the treatment device includes a distal surface with an edge corresponding to a shape of the eye.

21. The method of claim 19, wherein the treatment device includes a nosecone configured to receive an entirety of the pin therein, and a distal surface of the nosecone includes an opening through which a distal end of portion of the pin is configured to protrude out of the nosecone.

22. The method of claim 21, wherein the distal surface of the nosecone is angled relative to an oscillating axis of the pin.

23. The method of claim 20, wherein the nosecone is formed of a material that allows visualization of the pin through the nosecone.

24. The method of claim 19, wherein the force applied to the first location does not increase a temperature of eye tissue.

25. The method of claim 21, wherein the nosecone is selectively removable from the treatment device.

26. The method of claim 19, wherein the pin does not pierce tissue.

27. The method of claim 19, wherein the first location on the ocular surface is at the limbus, and the force applied to the first location is transmitted to ocular structures spaced from an exterior surface of the eye.

28. The method of claim 19, further comprising:

positioning the pin at a second location on the ocular surface of the eye, wherein the second location is spaced from the cornea; and

oscillating the pin to repeatedly apply a force to the second location.

29. The method of claim 28, wherein the first and second locations are spaced by 180 degrees.