Source: http://www.google.co.uk/patents/US5041135
Timestamp: 2018-01-18 12:07:53
Document Index: 198134958

Matched Legal Cases: ['art 22', 'art 22', 'art 21', 'art 22', 'art 22', 'art 21']

Patent US5041135 - Posterior chamber intraocular lens - Google Patents
An intraocular lens comprising a support part connected to a central part by a single attachment integral with the support part and the central part. The attachment is provided with a blind hole. The support part is inclined relative to the central part in the direction of convexity of the central part....http://www.google.co.uk/patents/US5041135?utm_source=gb-gplus-sharePatent US5041135 - Posterior chamber intraocular lens
Publication number US5041135 A
Application number US 07/228,884
Priority date 5 Aug 1987
Also published as CA1298439C, DE3868563D1, EP0305255A1, EP0305255B1
Publication number 07228884, 228884, US 5041135 A, US 5041135A, US-A-5041135, US5041135 A, US5041135A
Inventors Jacques Charleux
Original Assignee Laboratoires Domilens
Patent Citations (11), Referenced by (7), Classifications (5), Legal Events (8)
US 5041135 A
An intraocular lens comprising a support part connected to a central part by a single attachment integral with the support part and the central part. The attachment is provided with a blind hole.
1. A posterior chamber intraocular implant comprising:
a central part in the shape of a meniscus, said central part forming a lens, said lens having a front face and a rear face;
an elastic support in the shape of a circular crown, said elastic support disposed coaxially with said central part so as to lie in a plane parallel to the plane of said central part, said support having an anterior face and a posterior face;
said implant having only a single attachment lying radially to said lens and support, said single attachment formed integrally with said support and said central part, said attachment having a width substantially greater than the width of said support, said attachment being inclined relative to said elastic support so as to permit folding of said implant for introduction into the capsule of a crystalline lens of the eye.
2. An implant according to claim 1 wherein the attachment is provided with a blind hole.
3. An implant according to claim 1 wherein the attachment is inclined relative to said circular crown at about 35°.
4. An implant according to claim 1 wherein the attachment is inclined relative to said circular crown at about 20°.
This invention relates to a posterior chamber intraocular lens or implant of the intracapsular type, i.e., an implant intended to be put in place in the posterior chamber of the eye, on the inside of the capsule of the crystalline lens during removal of the latter as a result of a cataract.
FIG. 1 represents, in cross section, the anterior part of an eyeball inside which an implant 10 of this type is placed.
The aim of this invention is to eliminate these drawbacks and to design an implant of said type which exhibits a great flexibility and is easy to put in place in the capsule of the crystalline lens and which makes it possible to solve satisfactorily the problems linked to a secondary cataract.
Centering and stability of the implant thus obtained are excellent, because the closed circular crown makes possible a 360° support inside the eye.
FIG. 1 represents the anterior part of the eyeball in cross-section.
FIG. 3 shows implant 20 according to the invention put in place inside capsule 6 of the crystalline lens.
Angle alpha, which support part 22 forms with general plane (P) of the lens, is equal to about 35°. This inclination of support part 22 relative to central part 21 has several advantages:
The angle α, which is formed with support part 22 with the general plan (P) of the lens is about 35°. This inclination of the support part 22 with respect to the central part 21 presents several advantages: firstly, since the lens is folded for insertion into the eye, this inclination of the support as well as the curvature if the central part, provide the implant with a capsular form, which facilitates its being slid into the interior of the eye and its being raised from the membrane which constitutes the capsule 6 of the crystalline lens.
Advantageously, the angle of inclination of the support part with respect to the central part is approximately 20°.
US4701181 * 2 Jul 1986 20 Oct 1987 Arnott Eric J Posterior chamber lens implant
DE3140465A1 * 12 Oct 1981 28 Apr 1983 Vnii Glaznych Boleznej Kuenstliche augenlinse
Owner name: LABORATOIRES DOMILENS 2 5 RUE MALESHERBES, 69006
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHARLEUX, JACQUES;REEL/FRAME:004976/0689
Owner name: LABORATOIRES DOMILENS, FRANCE
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHARLEUX, JACQUES;REEL/FRAME:004976/0689