Method and apparatus for inserting a glaucoma implant in an anterior and posterior segment of the eye

• US 6,050,970 A
• Filed: 05/08/1997
• Issued: 04/18/2000
• Est. Priority Date: 05/08/1997
• Status: Expired due to Term

• Current Assignee: Abbott Medical Optics Incorporated (Johnson & Johnson)
• Original Assignee: Pharmacia & Upjohn Company (Pfizer Inc.)
• Inventors: Baerveldt, George
• Primary Examiner(s): Stright, Ronald
• Assistant Examiner(s): Cho, David J.
• Application Number:
  US08/853,076
• Time in Patent Office: 1,076 Days
• Field of Search: 604/8-10, 604/46, 604/294, 604/28, 604/30, 604/128, 604/131, 604/149, 604/280, 606/108, 606/109, 623/4
• US Class Current: 604/28
• CPC Class Codes: A61F 9/00781 Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment drainage implants in general A61M27/002

Abstract

A method of treating glaucoma in an eye utilizing an implant is disclosed. The implant comprises an elastomeric plate having first and second surfaces and an non-valved elastomeric drainage tube. The plate is positioned over a sclera of said eye beneath Tenon'"'"'s capsule, such that a portion of the plate extends into the anterior segment of the eye. The first end of said elastomeric drainage tube is open to said second surface of said plate. The second end of said drainage tube is tunneled through the sclera and cornea and inserted into the anterior chamber of said eye. Fluid communication is provided between said anterior chamber and a scar tissue bleb which forms around said implant. Preferably, a portion of the scar tissue bleb extends into the anterior segment of the eye and a portion of the scar tissue bleb extends into the posterior segment of the eye.

Claims

1. A method of treating glaucoma in an eye utilizing an implant, said implant comprising a bleb formation device and an elastomeric drainage tube, wherein a first end of said elastomeric drainage tube is open to a surface of said bleb formation device, said method comprising the steps of:

positioning said bleb formation device in said eye, such that at least a portion of said bleb formation device is anterior to the location of muscle insertion of said eye;

forming a scar tissue bleb around said bleb formation device, such that at least a portion of said bleb is formed in the anterior segment of said eye;

positioning a second end of said drainage tube within the anterior chamber of said eye; and

providing fluid communication between said anterior chamber and said scar tissue bleb.

2. A method of treating glaucoma as in claim 1, wherein said positioning step further comprises positioning said bleb formation device over the sclera of said eye.

3. A method of treating glaucoma as in claim 1, wherein said positioning step further comprises positioning said bleb formation device beneath Tenon'"'"'s capsule of said eye.

4. A method of treating glaucoma as in claim 1, wherein the remainder of said bleb is formed in the anterior segment of said eye.

5. A method of treating glaucoma in an eye utilizing an implant, said implant comprising a bleb formation device and an elastomeric drainage tube, wherein a first end of said elastomeric drainage tube is open to a surface of said bleb formation device, said method comprising the steps of:

positioning said bleb formation device in said eye, such that at least a portion of said bleb formation device is anterior to the muscle insertions of the eye;

positioning a second end of said drainage tube within the anterior chamber of said eye; and

providing fluid communication between said anterior chamber and a scar tissue bleb which forms around said implant.

6. A method of treating glaucoma as in claim 5, wherein said positioning step further comprises positioning said bleb formation device over the sclera of said eye.

7. A method of treating glaucoma as in claim 5, wherein said positioning step further comprises positioning said bleb formation device beneath Tenon'"'"'s capsule of said eye.

8. A method of treating glaucoma as defined in claim 5, wherein said bleb formation device is an elastomeric plate.

9. A method of treating glaucoma as defined in claim 8, wherein said first end of said tube is open to a surface of said elastomeric plate.

10. A method of treating glaucoma as defined in claim 5, additionally comprising the step of suturing said bleb formation device to said eye.

11. A method of treating glaucoma as defined in claim 10, wherein said suturing step further comprises suturing said bleb formation device to the sclera of said eye.

12. A method of treating glaucoma in an eye utilizing an implant, said implant comprising a bleb formation device and an elastomeric drainage tube, wherein a first end of said elastomeric drainage tube is open to a surface of said bleb formation device, said method comprising the steps of:

positioning said bleb formation device over a sclera of said eye beneath Tenon'"'"'s capsule, such that at least a portion of said bleb formation device is anterior to the muscle insertions of the eye;

positioning a second end of said drainage tube within the anterior chamber of said eye; and

providing fluid communication between said anterior chamber and a scar tissue bleb which forms around said implant.

13. A method of treating glaucoma as defined in claim 12, wherein said positioning step further includes positioning said bleb formation device, such that between 5% and 99% of said bleb formation device is anterior to the muscle insertions of the eye.

14. A method of treating glaucoma as defined in claim 13, wherein said positioning step further includes positioning said bleb formation device, such that between 5% and 30% of said bleb formation device is anterior to the muscle insertions of the eye.

15. A method of treating glaucoma as defined in claim 12, wherein said bleb formation device is an elastomeric plate.

16. A method of treating glaucoma as defined in claim 12, additionally comprising the step of suturing said bleb formation device to said sclera.

17. A method of treating glaucoma in an eye utilizing an implant, said implant comprising an elastomeric bleb formation device and a drainage tube, wherein a first end of said drainage tube is open to a surface of said bleb formation device, said method comprising the steps of:

positioning said bleb formation device in said eye over the selera of said eye, and beneath Tenon'"'"'s capsule of said eye, so that said bleb formation device elastomerically conforms to said eye, with at least a portion of said bleb formation device placed anterior to the muscle insertions of the eye, said positioning step including the acts of making an incision in said eye and passing said bleb formation device through said incision; and

placing a second end of said drainage tube within the anterior chamber of said eye, said placing step comprising the acts of making a second incision into the anterior chamber of said eye and passing said second end of said drainage tube through said second incision into said anterior chamber of said eye.

18. A method of treating glaucoma as defined in claim 17 wherein said placing step further comprises the act of extending said second end of said drainage tube less than 10 mm from said bleb formation device.

19. A method of treating glaucoma as defined in claim 18 wherein said act of extending said second end of said drainage tube extends said second end less than 8 mm from said blab formation device.

20. A method of treating glaucoma in an eye utilizing an implant, said implant comprising an elastomeric bleb formation device and a drainage tube, wherein a first end of said drainage tube is open to a surface of said bleb formation device, said method comprising the steps of:

positioning said bleb formation device in said eye over the sclera of said eye, and beneath Tenon'"'"'s capsule of said eye, so that said bleb formation device elastomerically conforms to said eye, said positioning step including the acts of making an incision in said eye and passing said bleb formation device through said incision; and

placing a second end of said drainage tube within the anterior chamber of said eye less than 10 mm from said bleb formation device, said placing step comprising the acts of making a second incision into the anterior chamber of said eye and passing said second end of said drainage tube through said second incision into said anterior chamber of said eye.

21. A method of treating glaucoma as defined in claim 20 wherein said placing step places said second end of said drainage tube less than 8 mm from said bleb formation device.