Process for manufacturing an intraocular lens with an embedded mask
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29D-011/00
B29D-011/02
B29C-033/12
A61F-002/16
출원번호
US-0133139
(2016-04-19)
등록번호
US-9573328
(2017-02-21)
발명자
/ 주소
Reboul, Adam C.
Benz, Patrick H.
Webb, R. Kyle
출원인 / 주소
AcuFocus, Inc.
대리인 / 주소
Knobbe Martens Olson & Bear LLP
인용정보
피인용 횟수 :
5인용 특허 :
227
초록▼
Intraocular implants and methods of making intraocular implants are provided. The intraocular implant can include a mask adapted to increase depth of focus. The method of manufacturing the implant can include positioning the mask with an aperture on a protruding pin of a positioning mold portion. Th
Intraocular implants and methods of making intraocular implants are provided. The intraocular implant can include a mask adapted to increase depth of focus. The method of manufacturing the implant can include positioning the mask with an aperture on a protruding pin of a positioning mold portion. The protruding pin can be configured to center the mask in the intraocular lens.
대표청구항▼
1. A mold set for manufacturing an intraocular lens having a mask suspended within the intraocular lens, the mold set comprising: a first lens forming mold portion comprising: a curved lens forming surface; anda cavity configured to hold at least a portion of a lens material, the cavity comprising a
1. A mold set for manufacturing an intraocular lens having a mask suspended within the intraocular lens, the mold set comprising: a first lens forming mold portion comprising: a curved lens forming surface; anda cavity configured to hold at least a portion of a lens material, the cavity comprising an outer periphery configured to form an outer periphery of the intraocular lens;a positioning mold portion configured to position the mask within the lens material, the positioning mold portion being configured to mate with the first lens forming mold portion, the positioning mold portion comprising: a body portion; anda protruding pin extending from the body portion, an end portion of the protruding pin having a first diameter sized to correspond to an aperture in the mask, the protruding pin being configured to control centration of the mask within the lens material, the protruding pin further comprising a shoulder portion having a second diameter that is larger than the first diameter, the shoulder portion being configured to control the depth of the mask within the lens material,wherein a diameter of the outer periphery of the cavity is greater than the second diameter of the shoulder portion. 2. The mold set of claim 1, wherein the length of the protruding pin is sized such that the end portion of the protruding pin extends within 0 mm to 0.2 mm from the lens forming surface of the first lens forming mold portion when the positioning mold portion is joined with the first lens forming mold portion. 3. The mold set of claim 1, wherein a length of the protruding pin is configured such that an optical zone of the intraocular lens is substantially free of the lens material when the first mold portion mates with the positioning mold portion. 4. The mold set of claim 1, wherein the second diameter of the shoulder portion is about 50% of an outer diameter of the mask. 5. The mold set of claim 1, wherein the shoulder portion is configured such that the lens material can flow between a surface of the mask and the body portion. 6. The mold set of claim 1, further comprising a second lens forming mold portion configured to hold another portion of the lens material and join with the first lens forming mold portion. 7. The mold set of claim 1, wherein the first lens forming mold portion comprises a haptic region. 8. The mold set of claim 7, further comprising a haptic shield positioned on the positioning mold portion such that the haptic shield blocks curing light from reaching the haptic region so as to prevent polymerization of the lens material within the haptic region. 9. The mold set of claim 1, wherein the body portion comprises an interior surface from which the protruding pin extends, the interior surface comprising a curvature. 10. The mold set of claim 1, wherein the first diameter is between 1.1 mm and 1.6 mm. 11. A mold set for manufacturing an intraocular lens having a mask suspended within the intraocular lens, the mold set comprising: a first lens forming mold portion comprising a cavity and a haptic region positioned radially outward from the cavity, the cavity configured to hold at least a portion of a lens material, the haptic region configured to hold a haptic material;a positioning mold portion configured to position the mask within the lens material, the positioning mold portion being configured to mate with the first lens forming mold portion, the positioning mold portion comprising: a body portion; anda protruding pin extending from the body portion, an end portion of the protruding pin having a first diameter sized to correspond to an aperture in the mask, the protruding pin being configured to control centration of the mask within the lens material, the protruding pin further comprising a shoulder portion having a second diameter that is larger than the first diameter, the shoulder portion being configured to control the depth of the mask within the lens material,wherein when the positioning mold portion mates with the first lens forming mold portion, the shoulder portion is positioned radially inward of an outer periphery of the cavity. 12. The mold set of claim 11, wherein the length of the protruding pin is sized such that the end portion of the protruding pin extends within 0 mm to 0.2 mm from the lens forming surface of the first lens forming mold portion when the positioning mold portion is joined with the first lens forming mold portion. 13. The mold set of claim 11, wherein a length of the protruding pin is configured such that an optical zone of the intraocular lens is substantially free of the lens material when the first mold portion mates with the positioning mold portion. 14. The mold set of claim 11 wherein the second diameter of the shoulder portion is about 50% of an outer diameter of the mask. 15. The mold set of claim 11, wherein the shoulder portion is configured such that the lens material can flow between a surface of the mask and the body portion. 16. The mold set of claim 11, further comprising a second lens forming mold portion configured to hold another portion of the lens material and join with the first lens forming mold portion. 17. The mold set of claim 16, further comprising a haptic shield positioned on the positioning mold portion such that the haptic shield blocks curing light from reaching the haptic region so as to prevent polymerization of the lens material within the haptic region. 18. The mold set of claim 11, wherein the first diameter is between 1.1 mm and 1.6 mm.
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